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Under the trend of “de-battery” locks, NFC smart locks and passive electronic locks, as the two mainstream battery-free solutions, are relying on zero-battery design to solve the endurance pain points of traditional locks. However, there are significant differences between the two in the technical principle, applicable scenarios, management mode, how to choose the right program according to the actual needs? This article from the technical comparison, scene fit, selection parameters of the three aspects of in-depth analysis, to help you make accurate decisions. Core Technology Principle: The Essential Difference Between Energy Supply and Unlocking Logic Dimension NFC smart lock Passive electronic lock Energy source Reverse power supply for mobile NFC function (13.56MHz near-field communication) Dedicated electronic key/card power supply (electromagnetic induction technology) Unlock media Smartphone (supports iOS/Android) Electronic key (customizable permission level) Data exchange Dependent on APP management (supports remote authorization and unlocking record query) Offline storage of data (exporting operation records through a card reader) Mechanical backup Standard emergency mechanical keyhole Optional mechanical key or pure electronic coding (without mechanical structure) 1. NFC Smart Lock: Consumer-grade Innovation of Mobile Phone as Key · technology core: through the electromagnetic field generated by the cell phone NFC chip for the lock body power supply (5V/100mA instantaneous current), drive the micro-motor to complete the unlocking, single unlocking power consumption of only 0.1%. Typical scenarios of ·: Users can unlock the lock by staying close to the phone, and it supports multi-user privilege sharing (e.g. temporary authorization to family/friends), which is suitable for high-frequency and personalized management scenarios. 2. Passive electronic locks: industrial-grade offline management experts · technology core: electronic key built-in micro-battery (only for power supply, life expectancy of more than 5 years), when contacting the lock body to transmit energy and unlocking code, without the need for networking to achieve 2000 + locks hierarchical management. Typical scenarios: in underground garages and remote factories without signal, hundreds of devices can be managed by one electronic key, and the data can be synchronized to the management system through the card reader at a later stage. Comparison of core advantages: key indicators of scene adaptation ▶ NFC Smart Lock: The King of Convenience in Civil Scene ✅ Three core advantages . Seamless cell phone docking. · does not need to carry an extra key, supports WeChat / Alipay applet unlocking (e.g., gym locker sweep + NFC double verification), and is highly accepted by young users. · Case: After the introduction of NFC locks in a shared office space, the efficiency of members opening lockers increased by 60%, and the number of complaints about lost keys went to zero. . Visualization management system. ·APP real-time display of unlocking records, remaining power (cell phone), device location (GPS positioning), support for batch authorization (e.g., landlord of long term rental apartments opens 10 room permissions with one click). . Face value and cost-effective. · lock body thickness of only 12mm, provide elegant black / rose gold and other fashionable colors, suitable for home closet, light luxury shoe cabinet and other scenes, the unit price is 30% lower than traditional smart locks. ⚠️ is applicable to limitations. · relies on the NFC function of cell phone (some low-end models do not support), and the battery life of cell phone may affect the unlocking in extreme environment (but supports emergency unlocking by turning off the phone). ▶ Passive Electronic Lock: Hardcore Choice for Industrial Scenarios ✅ Three core advantages . Offline management king. · does not need network / Bluetooth, stable work in tunnels, mountainous areas and other signal blind areas, the electronic key can store 3000 unlocking records, and later quickly exported to the PC management system through a USB card reader. · Case: A mining project uses passive electronic locks to manage 200 underground control cabinets, and the data integrity rate reaches 100% in a signal-less environment for 3 years. . Extreme Environment Adaptation. · protection level up to IP68 (support 1 meter water depth immersion for 30 minutes), resistant to - 40 ℃ ~ +85 ℃ wide temperature, the lock body is made of 316 stainless steel, the life span of the coastal salt spray environment is more than 8 years, which is far more than the IP67 level of NFC locks. . More rigorous privilege classification. · supports three levels of authority management (administrator/operator/temporary personnel), and the electronic key can set the validity period (e.g., the key for the construction team is only valid for 7 days), which meets the security audit requirements of industrial equipment. ⚠️ Application Restrictions. · needs to be equipped with a special electronic key (enterprise unified management is recommended), and the initial investment cost is 15%-20% higher than that of NFC locks. Scenario Selection Guide: Four Typical Scenario Decision Trees 1. Home locker / closet (personalized management scenario) · Select NFC smart lock. · core requirements: convenient unlocking, multi-user sharing, appearance adaptation · plus points: APP support for unlocking photos to leave traces (anti-theft), low battery reminder (visible on the cell phone) · Installation suggestions: choose the standard model that fits 10-20mm boards, and match the wood grain/metallic color shell to fit in with the home decorating style. 2. industrial outdoor power distribution cabinet / control box (harsh environment scenarios) · Select passive electronic lock. · core requirements: weather resistance, offline management, authority traceability · plus points: anti-violent opening (withstand 2000N tension), lock temperature monitoring (over 60 ℃ automatic warning) · installation recommendations: with waterproof dust cover, choose 35mm rail mounting type, suitable for rapid deployment of industrial profiles 3. Office filing cabinets / filing cabinets (compliance audit scenarios) · on-demand options. · Light office (<50 cabinets): NFC smart lock (low cost, easy for employees to get started) · Large enterprises / classified units: passive electronic locks (safer offline data storage, supports ISO 27001 compliance audits) 4. Shared space / public lockers (high-frequency use scenarios) · Select NFC smart lock. · Core requirements: fast authorization, user self-management, data visualization · Case reference: after using NFC locks in a university library, the efficiency of students' borrowing and returning lockers has increased by 40%, and administrators can view the use status of each locker in real time in the background. The selection of parameter table: 5 major dimensions of comparative decision-making Parameters NFC smart lock Passive electronic lock Applicable priority (high/medium/low) Network dependence Mobile NFC required (no internet connection required) Completely offline Civilian scenario: High industrial scenario: Low Adaptation to Extreme Environments IP67 (waterproof and dustproof) IP68+wide temperature range (-40 ℃~+85 ℃) Industrial scenario: Passive electronic lock height Granularity of permission management Mobile APP rating (within 10 levels) Third level authorization for electronic keys Compliance scenario: Passive electronic lock height Initial cost Low (unit price) 20− 30）​ Medium to high (unit price) 40− 60）​ Budget sensitive: NFC smart lock high Data traceability capability Cloud storage (over 1 year) Offline storage (3000 records) Audit requirements: Both are acceptable Practical cases: real choices in different scenarios ▶ Case 1: Gym chain (civilian high-frequency scenarios) · Pain point: the traditional battery lock annual replacement rate of 60%, members often due to lack of power can not open the cabinet ·Solution: NFC smart locks, supporting WeChat applet scanning + NFC unlocking, real-time background monitoring of the status of each locker. · effect: operation and maintenance costs decreased by 80%, member satisfaction increased from 75% to 92%. ▶ Case 2: Oil Drilling Platform (Industrial Extreme Scenario) · pain point: -30 ℃ low temperature battery lock frequent failure, equipment downtime risk is high · Solution: Deploy passive electronic locks, electronic keys can work normally in -40℃ environment, offline recording of unlocking data. Effect: Zero battery-related failures in 3 years, 50% increase in inspection efficiency (no need to check battery status) Summarize: choose on demand and let technology serve the scene  choose NFC smart lock: if you need cell phone convenient management, personalized appearance, high cost-effective, and the use of relatively mild environment (such as home, office, shared space), NFC smart lock is the optimal solution. · choose passive electronic lock: if you face harsh environment (high/low temperature/high humidity), offline management, multi-device cluster authority control (e.g., industrial equipment, outdoor facilities, classified scenarios), passive electronic lock is a reliable partner. Both solutions are based on “battery-free” as the core, and the difference lies in the positioning difference between “consumer-grade convenience” and “industrial-grade hardcore”. It is recommended to make a comprehensive decision based on the environmental conditions, management needs and budgetary costs of specific scenarios, so that battery-free locks can truly become a booster to enhance efficiency and security, rather than a selection problem.

In the field of smart locks, “battery anxiety” has always been a pain point for users -- traditional electronic locks need to replace batteries regularly, industrial equipment locks are prone to battery failure in harsh environments, and locker locks can't even be opened when there is no power. Battery-free locks, with reverse power supply technology and full-scene adaptability, are setting off a “de-battery” revolution from home to industry, redefining the balance between device safety and convenience. The battery dilemma of traditional locks: why do we need a battery-free solution? 1. High-frequency pain points in daily use · locker scenarios: gym locks cause battery rust due to humidity, and the annual replacement rate reaches 60%; household closet locks forget to change the battery, and can only be violently dismantled (data from an e-commerce platform shows that battery problems account for 45% of the after-sale complaints about smart locks). · industrial scenarios: outdoor switchboard locker battery life plummeted 70% in -20℃ low temperature, a wind power project has been due to battery failure led to equipment downtime for 2 hours, the loss of more than 500,000 yuan. 2. Environmental protection and maintenance cost pressure · environmental pollution: the world's annual waste of lock batteries more than 200 million, only 15% of the effective recycling. · Operation and maintenance burden: industrial equipment needs to stop for 30 minutes for each battery replacement, and the annual maintenance cost of a single piece of equipment exceeds 800 yuan (including labor + materials). The battery-free lock core technology: reverse power supply how to subvert the traditional? 1. NFC reverse power supply principle · cell phone / key as energy source: Through NFC near field communication technology, when the cell phone or special electronic key is close to the lock, it will convert electromagnetic energy into instantaneous current (5V/100mA) to drive the lock cylinder to complete the unlocking, without the need of built-in battery. · zero energy loss: a single unlock consumes only 0.1% of the phone's power, and the iPhone 15 can support more than 2,000 unlocks (lab data). 2. Full Scene Adaptation Design · installation compatibility. · locker: retain the traditional cam lock 1:1 installation size (hole distance / thickness exactly match), 5 minutes to replace the old lock, wood cabinet / metal cabinet universal. · industrial equipment: support 35mm standard rail mounting, suitable for power distribution boxes, control cabinets and other industrial profiles, no need to modify the cabinet structure. · Environmental adaptability. Protection level up to IP67 (dustproof and waterproof), stable work in 50 ℃ high temperature, 95% humidity environment, coastal salt spray environment life of more than 5 years. Full-scene solutions: value breakthroughs from home to industry 1. Civilian scenarios: Convenience and security are both upgraded ▶ Locker / Wardrobe / Shoe Cabinet · Core Advantages. · One-touch unlocking by cell phone: say goodbye to key forgetting, support multi-user rights management (e.g. set temporary password for shared lockers). · double insurance design: retain the mechanical emergency keyhole to avoid the inability to open the box when the cell phone is out of battery (the actual test cell phone can still be unlocked by NFC emergency when the cell phone is turned off). · Case: After the introduction of battery-free locks in a chain gym, the number of complaints from members due to battery problems dropped by 90%, and a single store saved 12,000 yuan in annual battery replacement costs. ▶ Office File Cabinet / Archive Cabinet · Intelligent Management: Record the unlocking time and operator through the supporting APP, and the important file cabinets support the function of “unlocking and taking photos to leave traces” to meet the needs of corporate compliance audits. · Appearance Adaptation: Provide matte black, champagne gold and other colors to unify with the style of modern office furniture, and the thickness of the lock body is only 15mm, adapting to ultra-thin cabinets. 2. Industrial scenarios: reliable guards in extreme environments ▶ Outdoor power distribution cabinet / control box · technology breakthrough. · is resistant to - 40℃~+85℃ wide temperature operation and passes IEC 60068-2-1 low/high temperature test, solving the failure problem of traditional electronic locks in cold storage, substation and other scenarios. · anti-electromagnetic interference design (compliant with EN 50121-4 railroad EMC standard), stable work without interruption next to high-voltage power transmission equipment. · real-world data: after replacing the battery-free lock in a photovoltaic power station, the efficiency of equipment inspection is increased by 30% (no need to check the battery status), and there are zero battery-related failures in 3 years. ▶ Industrial Control Cabinets / Robotic Arm Protective Cabinets · Maintenance-free advantages. The battery-free design of · eliminates the risk of electrolyte leakage and is suitable for food processing, pharmaceutical manufacturing and other scenarios that require high cleanliness. The lock body of · is made of 304 stainless steel, which is 5 times more corrosion-resistant than ordinary steel locks, meeting the harsh environmental requirements of the chemical industry. Selection Guide: How to Match Your Scenario Needs? 1. Comparison table of core parameters Application Scenarios Core Requirements Recommended Models Key technical indicators Home Locker Convenience + Value Standard NFC lock Adaptable to 10-20mm boards, APP rights management​ Industrial lockers Weatherproof + anti-interference Industrial Reinforced IP67 protection, -40℃~+85℃ working temperature Office Filing Cabinet Compliance + Intelligence Audit Trail Application Scenario Core Requirements Recommended Models Key Specifications Household locker Convenient + good looks Standard NFC lock Adaptable to 10-20mm board, APP rights management. Industrial Power Distribution Cabinet Weather-resistant + anti-interference Industrial Enhanced IP67 protection, -40℃~+85℃ working temperature. Office Filing Cabinet Compliance + Intelligent Audit Trail Locker 3000 unlocking records, photo tracing. 2. Installation and adaptation recommendations · Civilian scenarios. · Wooden cabinet installation: use matching plastic expansion screws to avoid damaging the cabinet structure. · Metal cabinet installation: directly replace the original cam lock, screw holes do not need to be adjusted (support 60mm/70mm standard hole spacing). · Industrial scenarios. · Outdoor equipment: with waterproof and dustproof cover (optional accessory), the lock body gap filled with silicone sealing ring. · High-voltage environment: choose the anti-electromagnetic shielding model to ensure stable work in substations above 10kV. From “functional” to “durable”: redefining the lock value system The measured data of an automobile manufacturing plant shows that after the introduction of battery-free locks. · Maintenance cost decreased by 75%: 300 industrial equipments save 225,000 yuan of battery replacement cost annually. · Zero risk of downtime: completely eliminate equipment failures due to battery problems, and increase the continuous running time of the production line by 15%. · Significant environmental benefits: reduce waste batteries by 2,400 per year, equivalent to the carbon sink of planting 120 fir trees. Driven by the “dual carbon” goal and intelligent upgrading, the battery-free lock is evolving from a “convenient accessory” for lockers to a “core safety component” for industrial equipment. Its value not only lies in the elimination of battery pain points, but also through technological innovation to realize the boundless adaptation of the scene - whether it is easy to open the box at home, or the harsh protection of the industry, the battery-free locks are rewriting the definition of equipment safety with “de-batteryization”.

In urban transportation network, signal control box as the core node of intelligent transportation system not only needs stable security protection, but also faces multiple challenges of uniformity in appearance, environmental adaptability and intelligent management. Traditional locks often due to the abrupt appearance, poor material weather resistance, maintenance complexity and other issues, become a double pain point of urban landscape and equipment safety. Customized appearance industrial passive locks with full-dimensional appearance customization capabilities and passive electronic technology advantages, for traffic signal control box to provide “value and performance double online” solution, to help create a clean, safe, intelligent urban transportation infrastructure. The traffic signal control box of the three major adaptation problems: why the traditional locks “do not fit”? 1. Appearance style is not uniform · Cityscape requirements: North, Guangzhou and Shenzhen and other cities require outdoor equipment to be coordinated with the surrounding architectural style, the traditional locks of the original color of the metal or the abrupt shape of the often complained about · lack of brand identity: municipal equipment lacks a unified brand vision, resulting in low recognition of inspection (a traffic police detachment statistics, due to the similarity of the appearance of the locks caused by the misuse of the rate of 15%) 2. Performance short board in harsh environments · day and night temperature shock: control box surface temperature fluctuations in the range of - 20 ℃ ~ +60 ℃, ordinary locks plastic parts are easy to embrittle, metal parts thermal expansion and contraction leading to jamming · multi-pollutant erosion: automobile exhaust, acid rain, salt spray (coastal cities) to accelerate the rust and corrosion of locks, a coastal city signal box locks replaced 3 times a year on average 3. Inefficient management · key management chaos: an average of 50 + control boxes in a single area using different keys, inspectors need to carry 20 + keys, the probability of error and omission to open 20%. · high battery maintenance costs: traditional electronic locks in the outdoor scene battery life of only 6-12 months, the annual maintenance cost of a single box more than $ 100 Customized appearance passive lock: redefine the transportation equipment adaptation standard 1. Exterior customization: from “stand out” to “blend in” · full color matching. · supports RAL color card 200 + color customization (e.g. RAL 7035 light grey, RAL 6031 moss green commonly used in the transportation industry) · Case: “Asian Games Blue” locks for Hangzhou Asian Games Transportation Project, with 100% consistency in appearance with the city's smart light poles. · Material and surface treatment. · Aluminum alloy / zinc alloy body can be selected, the surface of anodic oxidation (outdoor weathering 10 years) or powder coating (anti-scratch hardness up to 2H) · For the scenic control box, customized wood grain transfer printing shell, seamless integration with the surrounding natural landscape · brand logo implantation. · The front of the lock body can be laser engraved with the city LOGO, the abbreviation of the operation and maintenance unit (e.g. “SHJT” for Shanghai Transportation) or QR code (scanning code directly to the equipment file) 2. Passive technology: the “zero-maintenance” revolution for outdoor scenes · Battery-free design. · unlocked by electronic key contact power supply, completely eliminating the problem of battery failure in high/low temperatures, and adapting to the extreme temperature difference of -40℃~+85℃. · A western city plateau project test: at an altitude of 3000 meters, day and night temperature difference of 40 ℃ environment, 3 consecutive years of zero battery replacement record. ·IP67 grade protection. ·Triple sealing structure (silicone sealing ring + dust cover + nano-coating), effectively blocking rain, dust, oil intrusion (through GB/T 4208 anti-flush water test) · latch is made of 304 stainless steel, with a corrosion-resistant life of more than 5 years in coastal salt spray environment. 3. Intelligent management: one key to open + data traceability · authorization hierarchy system. · single electronic key can manage 200 + control box locks, support hierarchical authorization (such as operation and maintenance personnel can only open the jurisdiction of the area 50 locks) · After docking with IoT platform of Transportation Bureau, it can record the locking time, operator and equipment status in real time, and the abnormal locking automatically triggers SMS alarm. · is quick to install and adapt. · supports the installation of 35mm/45mm standard control box profiles, replacing old locks in 15 minutes without destroying the box structure. Full Scenario Adaptation Scheme: Customization Strategies for Three Types of Transportation Devices 1. Signal control box at junction (main road scenario) · Appearance requirements: high weather resistance + municipal uniform color scheme · Customized Solutions. · lock body color matches the main color of the city (e.g. Beijing “China Red” auxiliary color, Shenzhen “Technology Gray”) · surface to do anti-fingerprint treatment, to reduce the daily operation and maintenance of the smudge residue · technical configuration: IP67 protection + anti-violence opening design (withstand 500N tension without deformation) 2. Intelligent terminal at bus stops (crowded scenes) · Appearance requirements: minimalist design + scratch-resistant surface · Customized Solutions. · adopts matte black aluminum alloy shell with CNC chamfering process to avoid sharp edges. ·The thickness of the lock body is controlled within 18mm to fit the ultra-thin platform terminal panel. · technical configuration: passive electronic code (anti-duplication ability increased 5 times) + unlocking sound ≤ 30dB (reduce nuisance complaints) 3. Highway information board control box (field scene) · Appearance Requirements: Highly Recognizable + UV Resistant · Customized Solutions. · lock body sprayed with yellow warning paint (RAL 1003), with reflective strip design, easy to identify at night inspection · housing with anti-UV additives (weathering level up to QUV 5000 hours), to prevent color fading caused by outdoor sun exposure Technical features: Wide temperature operation (-40℃~+85℃) + Dust cover auto-close function (to reduce sand and dust accumulation).​ The selection guide: three steps to customize the exclusive traffic locks 1. Confirmation of cosmetic fit parameters Control box type​ Recommended materials Surface treatment process Color matching standard Urban main road signal box Zinc alloy Powder coating RAL 7032 dark gray Intelligent terminal for scenic spots Aluminum alloy Anodizing Wood grain transfer printing/stone texture​ Coastal high-speed equipment box 316 stainless steel Teflon coating RAL 5015 Sky Blue 2. Customized feature module options · basic model: monochrome appearance + passive unlocking (suitable for municipal projects with limited budget) · upgraded model: brand LOGO engraving + status indicator (red / green to show the lock status) · flagship model: QR code traceability + IoT interface (supports data synchronization of equipment management system). 3. Installation and certification guarantee · Compatibility test: provide 1:1 samples to adapt to the existing control box, 72 hours of outdoor environmental testing (temperature and humidity cycle + salt spray) · certification support: CE/FCC/RoHS certification is complete, in line with GB/T 2423.34-2013 “alternating humidity and heat test” standard Practical Case: Intelligent Transportation Upgrade Project in a Provincial Capital City Project pain points: the original signal box locks have a messy appearance, corrosion is serious, the average annual maintenance costs accounted for 12% of the total cost of the equipment. Solution. . Appearance customization: Uniformly adopt the city VI standard color (RAL 7035), lock body engraved with “XX traffic police” LOGO. . Technical upgrade: replace with passive electronic locks, with management system to realize a key to open 2000 + control box. Implementation effect. · Appearance complaints dropped 80%, becoming a model case of urban fine management. · maintenance cost reduced by 65%, locking efficiency increased by 40% (single box unlocking time shortened from 3 minutes to 15 seconds). From “standardization” to “personalization”: redefining the safety aesthetics of transportation equipment​ In the construction of the smart city, the traffic signal control box is no longer a “functional island”, but a fusion node of urban landscape and intelligent management. Customized appearance industrial passive locks achieve three major value breakthroughs through appearance customization, technical specialization, and management intelligence. . Landscape value: it becomes a “micro-card” of the city image and improves the visual uniformity of public facilities. . Safety value: passive design + high protection level, build “all-weather safety barrier” for outdoor equipment. . Efficiency value: a key to open the system and data traceability, to promote the operation and maintenance management from “artificial-oriented” to “intelligent-driven”.

In outdoor scenes under direct sunlight, power distribution boxes and control cabinets face severe high-temperature tests - when the surface temperature exceeds 50℃ in summer, the temperature inside the cabinet can reach 65℃ or more, traditional locks often fail to open due to battery failure, material deformation or circuit failure, becoming a hidden threat to the safety of industrial equipment. Industrial passive drawer locks with battery-free design and 65 ℃ high temperature resistance, for outdoor power distribution cabinets to build a reliable security barrier, become the power, new energy, industrial control and other areas of the immediate needs of the accessories. Locking pain points in high-temperature environments: why do traditional programs fail? 1. The fatal defects of battery locks · high temperature accelerated battery degradation: lithium batteries in 60 ℃ environment life shortened by 70%, frequent replacement of batteries to increase maintenance costs (single set of annual replacement costs more than 200 yuan) · circuit failure risk: high temperature leads to thermal expansion and contraction of electronic components, triggering short circuits or poor contact, a wind power project has been due to circuit failure of the lock led to 2 hours of downtime loss 2. Material limitations of mechanical locks · metal fatigue and deformation: ordinary steel locks run continuously above 50 ℃ for 3 months, the lock cylinder jamming rate increased by 40%. Aging of plastic parts: the nylon gears of traditional locks are easily brittle at high temperatures, increasing the risk of fracture by 3 times. Passive drawer lock core technology: innovation to crack the high temperature dilemma ​ 1. Passive design: farewell to the battery-dependent revolution · electronic key power supply technology: no need for built-in batteries, instantaneous power supply to complete the unlocking when the special electronic key contacts the lock body, completely eliminating the problem of battery failure at high temperatures. ·50 million times open and close life: pure mechanical structure design, by the German TÜV high-temperature aging test (65 ℃ environment continuous open and close 100,000 times without wear and tear), the life of the traditional electronic lock is 10 times longer. 2. High temperature resistant material matrix · lock cylinder body: aviation-grade PA66+GF30 nylon (temperature resistance - 40 ℃ ~ +85 ℃), compared with ordinary ABS material temperature resistance increased by 50%. · contact terminals: gold-plated copper alloy electrodes (thickness 5μm), stable conductivity in high humidity environment at 65 ℃, to avoid oxidation-induced contact failure. 3. All-weather protection system ·IP66 level dustproof and waterproof: withstand high-pressure water gun (80kPa pressure) rinsing, effectively blocking outdoor dust, rainwater intrusion. · Thermal expansion and contraction compensation design: dynamic adjustment of the gap between the lock body and the drawer (±0.3mm) to avoid jamming or loosening caused by high temperature. Outdoor distribution cabinet exclusive solution: three core values 1. Stable operation in high temperature environment · measured data: in Xinjiang Turpan (summer extreme high temperature of 45 ℃, 65 ℃ inside the cabinet) continuous operation for 18 months, the success rate of unlocking maintained 99.8% · Applicable scenes. · substation outdoor terminal box: to deal with the continuous high temperature radiation around the transformer · Photovoltaic inverter cabinet: work stably in the high heat and strong sand and dust environment of desert photovoltaic power station · Charging pile control box: to solve the heat dissipation and safety protection inside the cabinet when charging electric vehicles 2. 30% increase in operation and maintenance efficiency · One-key management: a single electronic key can be authorized to manage 200+ drawer locks, inspectors do not need to carry multiple sets of keys, shortening the inspection time of a single station by 40 minutes. · Status visualization: temperature sensing indicator is built into the lock, showing red warning when it exceeds 60℃, which facilitates early detection of hidden dangers. 3. Reduced life cycle costs · Zero Battery Replacement Cost: Compared with traditional electronic locks, the 5-year life cycle can save 70% of the maintenance cost. · Corrosion-resistant design: Teflon coated surface (thickness of 15μm) extends the life of the lock by 2 times in coastal salt spray environments, reducing the frequency of replacement. Selection Guide: How to Match Your High Temperature Scenario Needs? 1. Comparison table of core parameters Performance indicators​ General industrial locks​ Passive drawer lock (high temperature model)​ Applicable scene recommendation​ Working temperature range​ -20℃~+50℃​ -40℃~+85℃​ Outdoor equipment in high temperature / extreme cold area​ Protection Grade​ IP54​ IP66​ Dust / Rain Complex Environment Key management​ Mechanical key Electronic key (200 + code)​ Multi-device cluster management High temperature life (65°C)​ 6 months 5+ years​ Long-term open-air deployment of devices 2. Installation Adaptation Program · Tool-less quick-fit: supports 35mm standard drawer guides, replaces old locks in 10 minutes (no drilling or modification of cabinet structure required). · Depth Adjustment Function: latch extends and retracts from 5-15mm to accommodate metal/non-metal doors of varying thicknesses. · customization options: available with high temperature resistant silicone seal (+100°C), UV protected housing (for tropical light environments). Practical Case: Upgrading of High Temperature Protection in a Power Grid Company Project Background: A power supply bureau in the south of the outdoor distribution cabinet summer cabinet temperature over 60 ℃ for a long time, the traditional electronic locks need to replace the battery in an average of 2 months, and many times the high temperature jamming lead to maintenance delays. Solution. . Replacement with 65℃ passive drawer lock with electronic key management system. . Install heat dissipation fins on the outside of the lock body (optional) to further reduce the internal temperature. Implementation effect. Zeroed battery replacement costs for ·, saving 120,000 RMB in annual maintenance costs. The number of unlocking failures in the high temperature environment dropped from 5 per month to zero, reducing the risk of equipment downtime by 90%. From “functional” to “durable”: redefining high-temperature locking standards Driven by the goal of “double carbon”, the construction of outdoor new energy equipment and smart grid is accelerating, and the safety of equipment in high-temperature environments has become a necessity. Industrial passive drawer lock realizes three major value upgrades through material innovation + technological breakthroughs. . Reliability breakthrough: passive design solves the battery pain point, and the 65℃ high temperature resistance has passed the international IEC 60068-2-1 test. . Efficiency breakthrough: one-key-open system improves inspection efficiency and is suitable for Industry 4.0 intelligent management. . Cost breakthrough: more than 5 years of service life, the full cycle cost is only 1/3 of the traditional program. Click the link below to apply for free 65℃ high-temperature environment test samples, or make an appointment with a technical engineer to provide security program design for power distribution cabinets. Let the industrial passive drawer lock become your equipment's “high temperature shield”, comfortably cope with extreme weather, guarding the lifeline of industrial safety.

In the centralized mailbox scenarios of enterprises, schools, and government agencies, the security loopholes and management inefficiencies of traditional locks are becoming the “heart of the problem” of message delivery - key duplication risks, password leakage hazards, and battery failure leading to mail stranding ...... These problems not only affect work efficiency, but also may lead to the leakage of confidential documents. With AES-256 financial grade encryption technology and zero-battery design, the battery-free NFC smart lock creates a new security paradigm for centralized mailboxes, which is “crack-proof, maintenance-free and fully intelligent”. The three major security blind spots of traditional mailbox locks, do you realize? 1. Mechanical lock copying crisis: 1. A law firm faced a customer trust crisis due to the copying of mailbox keys, which led to the early leakage of undisclosed legal documents; 2. Statistics show that the key duplication rate of traditional mechanical locks is as high as 30%, and the duplication records cannot be traced. 2. The encryption vulnerability of electronic locks: 1. Ordinary electronic locks use simple encryption algorithms, a college mailbox system has been violently broken due to passwords, student admission notices were maliciously tampered with; 2. Battery dependence leads to 15% of locks cannot be opened normally in low temperature environment, and complaints about mail delay in winter surged by 40%. 3. Chaotic state of authority management: 1. When many people share a key, it is impossible to trace the specific person who opened the lock, a government department had lost internal documents, the investigation took up to 2 months. AES-256 encryption + battery-free design: redefining mailbox security standards 1. AES-256 financial-grade encryption: makes cracking a “mission impossible” · Military-grade security barriers: Adopting the AES-256 encryption algorithm certified by the National Institute of Standards and Technology (NIST) of the United States, the key length is up to 256 bits, and violent decryption needs to consume 10^30 years of computation time, with a security that is 1,000 times more secure than that of traditional mechanical locks; · dynamic key mechanism: each unlocking generates a unique dynamic key, together with the anti-middleman attack technology, completely eliminating the risk of signal interception, after the deployment of the headquarters of a bank, the mailbox system security audit score increased to 98 points (out of 100). 2. Battery-free reverse power supply: the ultimate zero-maintenance solution · technical innovation: no need for built-in battery, reverse power supply through cell phone NFC function (single unlock consumes only 0.01mAh), support iPhone 7 and above /iOS 13+, Android NFC models, cell phone out of battery can be connected to the charging treasure temporary unlocking; · cost subversion: the average annual maintenance cost of traditional electronic locks is $120/grip (battery replacement + faulty maintenance), while the 10-year operation and maintenance cost of battery-free smart locks tends to be close to zero, and the annual cost of a 500-person enterprise is more than 60,000 yuan. 3. NFC one-touch unlocking: 3 seconds to complete the identity verification · operation is very simple: cell phone close to the lock surface can be unlocked, no need to carry a physical key or memorize the password, adapt to high-frequency use scenarios (such as the average daily opening of enterprise front desk mailbox 500 + times); Strong compatibility: provide round cam lock, embedded square lock and other forms, compatible with 99% of the existing mailbox cabinet (thickness 15-50mm), 10 minutes to complete the replacement of the old lock, without the need to modify the cabinet structure. 4. IP66 protection + plastic housing: resistance to humid and dusty environments · environmental adaptability: dustproof level 6 (completely blocking dust), waterproof level 6 (anti-high-pressure water gun wash), measured in 90% humidity, dust concentration 0.5mg/m³ environment for 3 years of continuous work without failure; Signal optimization: exclusive ABS plastic shell (non-metallic material) to avoid signal interference, even if the mailbox cabinet is made of metal, the NFC signal penetration rate is still up to 98%, 4 times higher than the traditional metal lock. Full-scene adaptation: mailbox security standardization from enterprise to government affairs 1. Centralized mailbox for enterprise front desk · A technology company deploys round cam locks, administrators assign departmental mailbox permissions in real time via APP, departing employees' permissions are recovered in seconds, the efficiency of retrieving important contract documents is increased by 60%, and delays caused by key management errors are zeroed out. 2. Higher education students' mailboxes · Tsinghua University Shenzhen Campus adopts embedded square locks to manage student mailboxes, supports “semester system privileges” (automatic opening/closing), and prevents tampering of acceptance letter information with AES-256 encryption, which increases student satisfaction from 72% to 95%. 3. Governmental important mailboxes · A provincial government affairs center uses long cam locks, and all unlocking records are synchronized in real time to the supervisory system (including operator, time, and lock number), which meets the security requirements of Level 3 of the equal protection, improves the auditing efficiency by 80%, and realizes the full-process control and management of “unlocking is tracing”. Customized service: let the mailbox lock become the double carrier of security and image As an electronic lock factory, we provide full-link customization solutions: · function customization: support “time slot authorization” (e.g. only weekdays 9:00-18:00 unlocking), “multi-level permissions” (distinguishing between administrators and ordinary users), “vibration Alarm” (illegal lock picking triggers APP push); · Appearance design: 7 kinds of colors such as elegant black, silver gray, champagne gold, etc., laser engraving of enterprise LOGO or organization logo, to enhance the overall texture of mailbox area; · package empowerment: customized manual (including security tips, administrator operation guide) is attached with the lock, and exclusive QR code can be printed on the lock body to guide users to download the management APP. Conclusion: When mailbox security becomes a “moat” in the information age At a time when information leakage incidents occur frequently, the security management of centralized mailboxes has long exceeded the “lock” itself and become an important line of defense for the credibility and data security of organizations. Battery-free NFC smart lock with AES-256 encryption as the shield and zero-maintenance design as the blade, to protect the delivery of each mail. Serving 200+ government and enterprise customers, we have passed ISO 27001 information security certification, and we use military-grade technology to guard every piece of your mail!

In the field of industrial equipment operation and maintenance, efficiency and security are always the core of enterprise concern. Traditional mechanical locks are difficult to meet the needs of modern industry due to sloppy authority management and lagging response of operation and maintenance. The emergence of industrial passive electronic rotary handle lock, through the deep integration with mobile APP rights management, brings a revolutionary operation and maintenance upgrade programme for industrial scenes. Passive design: breaking through the shackles of traditional locks Traditional electronic locks rely on battery power, facing frequent battery replacement, circuit failure and other pain points. The industrial passive electronic rotary handle lock adopts passive power supply technology, no need for built-in power supply, through the external smart key or mobile phone APP reverse power to complete the operation. This design not only completely solves the risk of battery failure, but also realises the maintenance-free characteristics of the lock, which is especially suitable for power, petrochemical, logistics and other harsh environments with high humidity and extreme temperature. For example, its IP65 protection class can withstand dust and low-pressure water spray, and its wide temperature range of -40°C to 80°C ensures stable operation during winter in the north or rainy season in the south. Mobile APP Permission Management: Building a Fine-grained Operation and Maintenance System Four-dimensional authority model, precise control of operation boundaries RFID-based authority management system supports four-dimensional division of authority according to time, space, equipment type and operation type. For example, power inspectors can only open the doors of equipment cabinets in designated substations from 9:00 to 18:00 on weekdays, and they can only carry out inspection operations and cannot modify parameters. This fine-grained management effectively avoids the abuse of privileges and reduces the number of illegal unlocking incidents by 90%. Dynamic Approval Chain, Improving Emergency Response Efficiency by 300 When the equipment breaks down suddenly, the maintenance personnel can submit a temporary permission application via APP, and the system automatically triggers a multi-level approval process (e.g., initial review by the team leader + review by the department manager), and the permission takes effect in 10 minutes at the earliest, which compresses the troubleshooting time from 4 hours to 10 minutes. Full Life Cycle Traceability, Zero Error in Responsibility Definition The time of each unlocking operation, personnel identity, equipment status and other data are uploaded to the cloud in real time, forming a tamper-proof electronic ledger. After the system was introduced to a logistics centre, the accuracy of operation records was increased from 90% to 100% of manual records, and the efficiency of auditing was increased by 50%. Rotating handle design: humanised innovation for industrial scenarios Differing from the traditional electronic lock key operation, the rotary handle lock adopts mechanical and electronic double encryption structure: when opening the lock normally, the handle and the internal mechanical mechanism linkage to achieve physical locking; after closing the lock, the handle automatically enters the idle state, and the lock will not be damaged by violent twisting of the handle. This design not only meets the operating habits of industrial personnel, but also improves the anti-vandalism ability through the idling lock cylinder technology, which is suitable for cabinets, containers and other scenarios that require frequent switching. Cost reductions and efficiency gains: the practical value of data validation  Key management costs dropped by 100 per cent: after deploying 500 passive electronic locks, an electric power company saved more than 280,000 yuan a year in key procurement, distribution and loss costs. · Significant improvement in operation and maintenance efficiency: after the introduction of the system in a petrochemical plant, equipment inspection time was shortened by 30%, and fault location accuracy increased from 70% to 95%. · Security level jumped: Combined with two-factor authentication (fingerprint + privilege card) and dynamic encryption technology, the system's misidentification rate is less than 0.001%, which meets the financial-grade security standard. Multi-industry applications: the leap from theory to practice 1. Electric power industry: After deploying in the substation, the key management time saves 2,000 hours per year, and the equipment failure rate is reduced by 20%. 2. Logistics industry: a distribution centre has achieved full traceability of cargo transport by binding specific transport vehicles with authority, and the cargo loss rate has dropped by 15%. 3. Hazardous chemical management: Combined with the GPS positioning function, the system monitors the location of transport vehicles in real time, automatically triggering alarms for abnormal deviations and increasing the response speed to risky events by 80%. Conclusion Industrial passive electronic rotary handle lock redefines the value of industrial locks through three core advantages: passive design, intelligent rights management, and user-friendly operation. It not only solves the operation and maintenance pain points of traditional locks, but also builds a new operation and maintenance ecosystem of ‘safe, efficient and traceable’ for enterprises through data-driven refinement management. With the in-depth application of IoT technology, this innovative solution will surely unleash great potential in more industrial fields and become a key fulcrum for the digital transformation of enterprises. Experience the Industrial Passive Electronic Rotary Handle Lock now and start a new era of intelligent O&M!

In the extreme scenarios of the industrial world, low temperature is like a ‘sharp blade’ that tests the performance of every piece of equipment. Our industrial passive padlocks, however, break through the low-temperature shackles with hardcore strength, and remain as stable as a rock in the - 25°C freezing temperatures, building an impenetrable defence for asset security. Extreme Cold Challenge, No Reduction in Performance 1. Low temperature adaptive black technology · passive energy supply: abandon the traditional battery, through the smart key and other external equipment power supply, completely farewell to the embarrassment of battery failure in low temperature. Even at -25℃, with just one touch, the energy is transmitted instantly, and the lock is opened in a smooth flow. · Anti-freezing Material Matrix: The lock body is made of high-strength zinc alloy, which is treated with special low-temperature treatment, and still maintains good mechanical properties in sub-zero environments, and is resistant to embrittlement and impact. The surface plating process forms a dense protective layer to resist snow and ice erosion and prolong service life. 2. Fully adapted to extreme environments ·IP66 protection: the dust and waterproof grade reaches IP66, which is not afraid of snowstorms, freezing and humidity, and can easily cope with outdoor power facilities, cold chain warehouses, polar operations and other scenarios. Even if it is covered with snow and ice, the internal structure remains dry and clean, and the performance is stable as before. · Accurate encryption and unlocking: Built-in AES256 encryption technology, every time you unlock the door, you will go through a strict identity verification to prevent illegal invasion. Passive design + encryption algorithm, double protection, so that security in the extreme cold also ‘airtight’. ‘Icebreakers’ for industrial scenarios 1. Outdoor power: the loyal guardian in the wind and snow Outdoor power facilities such as substations and transmission towers are exposed to low temperatures, wind and snow all year round. Traditional locks are prone to freezing and rusting, making it impossible for operation and maintenance personnel to open the lock in time for maintenance. Our passive padlocks, however, work normally at -25℃ and IP66 protection against rain and snow erosion, ensuring the safety control of power facilities in extreme weather and reducing O&M delays caused by lock failure. 2. Cold chain warehousing: ‘safety housekeeper’ in low temperature Cold chain warehouses (e.g. pharmaceutical, fresh storage) need to operate at - 20℃ or even lower temperatures. Passive padlock does not need batteries to avoid the problem of low temperature battery bulging and failure, and through intelligent authorisation management, it can realise multi-level authority to unlock the lock to ensure the safe storage and flow of goods in the low temperature environment, and eliminate illegal entry and exit. 3. Polar operation: a reliable partner on the way of scientific research Polar research stations and industrial facilities in the Arctic Circle face the challenge of extreme cold below -25℃. The cold-resistant design and maintenance-free features of passive padlocks reduce the equipment failure rate, lower operation and maintenance costs, and allow researchers to focus on their core tasks without the need to be distracted by the lock's ‘little temper’. Four core advantages, define the new benchmark of industrial locks 1. Extreme cold resistance: -25℃ stable operation, breaking through the performance bottleneck of low-temperature locks. 2. Passive and maintenance-free: no battery design, to avoid low-temperature battery failure, reduce the burden of operation and maintenance. 3. High protection level: IP66 dustproof and waterproof, anti-corrosion, wear-resistant, adapting to complex industrial environments. 4. Intelligent encryption: AES256 encryption + rights management, to create a full range of security barriers. Customer testimony: ‘security’ in the extreme cold ‘In the cold chain warehouse in the north, the traditional locks will be ‘on strike’ in winter, and the cost of changing the locks is high and delayed. This passive padlock, -25 ℃ as open locks, IP66 protection is not afraid of moisture in the warehouse, used for half a year, there has not been a failure, too worrying!’ -- Operation and maintenance supervisor of a cold chain logistics company Choose us, unlock extreme environmental security Industrial passive padlock is not only a lock, but also a security ‘armour’ in extreme environments. It breaks through the low-temperature limitations with technology, guards industrial assets with quality, and provides a solid guarantee for your business in the extreme cold ‘breaking the ice’.   If you are for the low-temperature environment of the lock problem headache, may wish to try this -25 ℃ work as usual industrial passive padlock , so that the security in the snow and ice can also be ‘hot’!

In the industrial field, door locks are not only physical barriers, but also the core of the security system. In the face of complex industrial environments and demanding security needs, passive electronic door lock cylinders made of zinc alloy with electroplating technology have emerged to redefine the standard of industrial door locks with excellent durability and all-round security. Zinc alloy material: the cornerstone of industrial-grade robustness Zinc alloy is the ideal material for door lock cylinders thanks to its high strength, resistance to wear and impact. Its moderate density ensures a solid structure and facilitates installation and commissioning. In industrial scenarios, door lock cylinders are often subjected to collisions, friction and harsh environments, and zinc alloys can effectively withstand such wear and tear, reducing the frequency of maintenance and lowering the cost of long-term use. Whether it's frequent opening and closing of warehouses or around heavy equipment in factories, zinc alloy door lock cylinders are able to operate stably and provide solid support for security. Electroplating process: anti-corrosion and wear-resistant, the value and performance of both excellent Electroplating process gives the door lock cylinder double advantages:  · Anti-corrosion: form a dense protective film on the surface, resist moisture, dust, chemical corrosion, adapt to the humid and dusty industrial environment, prolong the service life. · Abrasion Resistance: Enhance the surface hardness, reduce daily wear and tear, and maintain the long-term stability of appearance and performance. After plating, the door lock cylinder is not only beautiful and durable, but also maintains excellent performance under harsh conditions, perfectly adapting to the harsh requirements of industrial scenarios. Passive design: the innovation of safety and convenience 1. No battery required, never power off Say goodbye to battery depletion and replacement troubles, through external energy sensing (such as energy transmission when swiping card, password input) to achieve unlocking, to avoid the risk of battery theft or failure, to ensure that the door lock is always on standby. 2. Simplify maintenance and reduce costs Passive design reduces battery maintenance, especially suitable for large-scale industrial deployment, saving manpower and time costs and improving management efficiency. 3. Upgraded security Combined with electronic encryption technology, the unlocking information is unique and confidential, resisting illegal copying and cracking. The structural design strengthens the ability to resist violent damage, building a solid defence for industrial safety. The industrial scene full adaptation: the perfect fusion of durability and safety · Warehouses and factories: resist humidity and dust, operate stably for a long time, and guard the safety of materials. · Equipment cabinets: anti-corrosion, anti-wear, protect precision equipment from illegal invasion. · Outdoor facilities: adapt to extreme environments such as temperature differences and wind and rain, ensuring all-weather safety.   Regardless of industrial scenarios, zinc alloy electroplated passive electronic door lock cylinders can meet challenges with durability and guard assets with security, becoming a reliable partner for industrial security. Conclusion: Choosing excellence, guarding industrial safety On the track of industrial safety, the robustness of zinc alloy material, the protection of electroplating process, and the innovation of passive design together cast the core competitiveness of this door lock cylinder. It is not only a lock, but also an intelligent guardian of industrial safety, saving costs, improving efficiency and building a firm line of defence for enterprises.   If you are looking for a durable, safe and suitable for industrial scenarios, why not choose zinc alloy plating passive electronic door lock cylinder, so that every time you open the lock is full of peace of mind, and every space to enjoy the security.

In the urban traffic network, traffic signal control box as the ‘nerve centre’ of road traffic, facing extreme temperature difference, high humidity and dust, frequent operation and maintenance and other harsh tests. Traditional mechanical locks are prone to rust and stagnation, electronic lock batteries are frequently replaced, and sloppy authority management not only leads to escalating equipment failure rates, but also directly affects traffic scheduling efficiency. Customised industrial passive electronic locks are optimised for the special needs of the control box, and with the three core advantages of passive power supply, high protection design and intelligent rights management, they have become the ideal solution for equipment security in the field of transportation. The five major operation and maintenance pain points of the traffic signal control box . Poor environmental adaptability · Outdoor temperature difference of - 40 ℃ ~ 70 ℃, the traditional electronic lock battery capacity plummeted 50% in low temperature, high temperature accelerated circuit aging · rainy season air humidity > 85% for a long time, the mechanical lock cylinder 3 months rust rate of more than 60%, resulting in failure to open the lock triggered by signal interruption. . High Frequency Operation and Maintenance Challenges · daily average number of times to open the lock 10 + times, ordinary locks drive parts wear and tear serious, 1 year replacement rate of more than 40 · Multi-brand control box lock hole specifications are not the same, universal lock installation adaptability rate is less than 30% . . Rights management blind spot ·The traditional key can not distinguish between the maintenance staff and inspectors operating authority, misuse of the signal caused by anomalies accounted for 25% of the events · operation records rely on manual registration, fault traceability takes more than 2 hours / time . Weak anti-interference ability · near high-voltage cables or electromagnetic equipment, the traditional electronic locks are prone to signal disruption, false unlocking and other problems. · lack of anti-vandalism design, illegal invasion of equipment damage caused by an average annual increase of 15%. Customised passive electronic locks of the six adaptive technology 1.Environmental adaptation layer: military grade weatherproof design · adopts aerospace-grade PA66+GF30 material lock body for stable operation in wide temperature range, passes - 40℃~80℃ high and low temperature cycling test (1000 times of alternation without cracking), and with nano-grade waterproof coating, it achieves IP68 protection level (no water ingress for 30 minutes of immersion in water depth of 1.5 metres), which can comfortably deal with the extreme weather such as torrential rain, extreme cold, sand and dust. The · maintenance-free passive power supply abandons battery design and draws power through electromagnetic induction from the electronic key/handheld terminal (activating the lock cylinder within 50ms), completely solving the hidden dangers of low-temperature power outages and battery leakage, with zero battery replacement cost for the entire life cycle. Tested in a provincial capital city: after deployment, the number of reported lock failures in winter dropped by 92%. 2.Structure adaptation layer: the ability to customise thousands of boxes with thousands of faces · full-size locking holes are compatible with 32mm/40mm/50mm and other specifications of latch length, support round/square/shaped locking holes customisation, adaptable to 98% of domestic and international mainstream control boxes (such as Siemens, Huawei, Hisense, etc.), installation without the need to modify the cabinet, 10 minutes to complete the replacement of the old and the new. · anti-misoperation cam structure for the maintenance of precision circuit boards in the control box, customised 15 ° / 30 ° / 45 ° rotation limit function, to prevent over-rotation damage to the internal wiring; the handle adopts the design of anti-violence idling, withstanding 500N ¡m torque is not damaged, and effectively resisting the damage of the crowbar. 3.Management Adaptation Layer: Traffic-specific Intelligent System · three-dimensional authority matrix through the management platform to set ‘time (such as the morning peak no repair time) + area (delineation of 3km operation and maintenance range) + operation level (distinguish between signal debugging and power supply checking authority)’, for example: only allow A-level engineers to open the designated area control box and modify the timing scheme at 00:00-05:00, reducing the risk of misoperation by 87%. · full-link data traceability automatically records 20+ dimensions of data such as time, personnel, operation duration, temperature inside the box (need to be matched with sensors) every time the lock is opened. Abnormal operations (such as failure to close the lock after the timeout period) are pushed to the traffic control platform in real time, and the fault location time is shortened from 2 hours to 15 minutes. The traffic police detachment of a municipality directly under the central government applied the application, and the handling efficiency of abnormal equipment events increased by 400%. The traffic scene of the actual case: from the frequent occurrence of problems due to zero failure rate In a traffic hub renovation project in Yangtze River Delta, 2,000 customised passive electronic locks were deployed in signal control boxes at intersections. · Environmental test: through 42℃ continuous high temperature and the cold wave across the year, the locks open and close smoothly and maintain 100%, which improves the reliability of traditional electronic locks by 5 times. · Operation and Maintenance Efficiency Improvement: Unified use of one intelligent key to manage all models of control boxes, key management costs dropped by 99%, single inspection time shortened by 40%. Security upgrade: through the electronic fence function, accurately intercept 3 illegal invasions (attempts to violently unlock the door), the relevant data synchronised access to the city security platform, forming a ‘discovery - response - disposal’ closed loop Four values of choosing a customised programme 1. 0 adaptation cost: professional team provides one-stop service of lock hole mapping, structural design, and system connection, so that the old control box can be retrofitted without any worry. 2. 60% lower TCO: 3-year comprehensive cost (purchase + maintenance + downtime loss) is only 40% of the traditional solution, and the ROI cycle is shortened to 18 months. 3. Standard Compliance: Passed GB/T 2423 weathering test, GA/T 73 mechanical anti-theft certification, support docking with public security traffic integration command platform. 4. Future Expansion: LoRa/NB-IoT communication module interface is reserved for easy upgrade to remote status monitoring (door opening/closing/temperature/humidity/voltage abnormal alarm). Conclusion When the stability of traffic signal control box directly affects the efficiency of urban traffic, locks are no longer a simple security accessory, but a key node of the intelligent transport system. Customised industrial passive electronic locks with ‘thousands of boxes and thousands of faces’ of adaptability, ‘all-weather online’ of reliability, ‘data-driven’ management advantages, for the traffic equipment with intelligent guardian armour. From busy intersections to suburban arterial roads, it silently guards every signal switch, making the pulse of urban traffic beat more steadily. Make every unlocking a security footnote for intelligent transport - customised passive electronic locks that redefine security standards for transport equipment.

In the lighting network of the smart city, the street light control box, as the ‘nerve node’ of the lighting system, is facing the outdoor test of extreme temperature difference, dusty and rainy, as well as the operation and maintenance dilemma brought by the traditional locks: frequent replacement of batteries, sloppy privilege management, lagging fault response, etc., which is becoming the bottleneck of the upgrade of smart lighting. The in-depth integration of industrial passive electronic locks and intelligent APP management system, with the three major advantages of ‘battery-free, high protection, and full intelligent control’, creates a whole-link intelligent solution from hardware to software for street light control box, and redefines the paradigm of urban lighting operation and maintenance. The traditional street light control box management of the four major pain points 1. Insufficient environmental adaptability · Under the low temperature of -30℃ in winter in the north, the battery capacity of traditional electronic locks plummeted by 60%, leading to interruption of lighting caused by failure to unlock the lock; in the rainy season in the south, the corrosion rate of lock cylinders exceeded 50% in three months, and the statistics of a provincial capital city showed that 28% of the street light inspection work orders were caused by the failure of the locks. 2. Inefficient operation and maintenance · average of 500-1000 control boxes in a single area, the traditional mechanical locks need to carry multiple sets of keys, a single inspection takes more than 4 hours; electronic locks battery replacement cycle is short (an average of 1 year / time), the city's annual maintenance cost of more than 2 million yuan. 3. Blind spot of authority management · can not distinguish between the maintenance staff, inspectors operating authority, there have been unauthorised personnel mistakenly touching the control box resulting in a large area of lights out accident; operation records rely on paper registration, fault tracing time consuming more than 2 hours / times. 4. Weak security protection · Ordinary locks are weak in resistance to violent damage, and the average annual growth rate of damage to equipment due to illegal intrusion is 15%; there is a lack of real-time monitoring, and abnormal openings cannot be warned in a timely manner. Passive electronic lock + APP intelligent management system Hardware layer: industrial-grade durable design 1. Passive power supply technology · abandons the battery design, and obtains power through the electromagnetic induction of mobile phone APP or electronic key (50ms activation of the lock cylinder), with 0 battery replacement in the whole life cycle, which completely solves the problems of low-temperature failure and corrosion of liquid leakage. Measured in a northern city: the failure rate of locks in winter decreased by 92%, and the annual battery purchase cost went to zero. 2. IP66 protection barrier ·304 stainless steel lock body with double sealing ring structure, can withstand 12.5mm/min strong water spray (distance of 3 metres) and dust environment for long-term erosion, the protection level of IP66 (GB/T 4208-2017), to adapt to the coastal salt spray, northwestern sand and dust, and other extreme scenes, the life of the lock body to enhance to the traditional locks more than 3 times. 3. Mechanical and electronic double encryption · idle anti-violence design: the handle automatically enters 360° idle state after locking, which can withstand 500N・m torque impact without damage; dynamic key technology: each time you unlock the lock generates a 128-bit AES encryption key, the probability of cracking is less than 10-²⁸, reaching the financial level security standards. Software Layer: Mobile APP Full Intelligent Control System 1. Three-dimensional authority matrix · Through APP, set ‘time (e.g. 1-5am prohibited repair time) + area (5km operation and maintenance range) + operation level (differentiate between circuit repair and parameter reading authority)’, for example. · Junior O&M operators can only open the control box of a designated street from 9:00-17:00 on weekdays and are prohibited from modifying lighting parameters. · administrators can temporarily authorise third-party personnel, with permissions automatically expiring after 72 hours, reducing the risk of misuse by 87%. 2. Real-time monitoring and alarm · control box status real-time synchronization: unlocking time, personnel identity, temperature and humidity inside the box (need to be matched with sensors) and other 20+ dimensions of data uploaded to the cloud in real time, abnormal opening (such as unlocking in non-authorized hours) immediately triggers the APP to push the alarm, the positioning accuracy of up to 10 m, and the response time to faults is shortened from 2 hours to 15 minutes. 3. Full-link data traceability · automatically generates operation and maintenance electronic ledgers, supporting multi-dimensional retrieval by ‘time, personnel, equipment number’, with 100% accuracy of operation records. After the application in a smart city project, the auditing efficiency was increased by 400%, and the historical fault tracing time was compressed from 3 hours to 5 minutes. 4. Remote O&M Expansion LoRa/NB-IoT communication module interface is reserved, which can be upgraded in the future for remote switching locks and lighting system status monitoring (such as abnormal voltage and cable break alarm), so as to realise the intelligence of the whole chain of ‘equipment - locks - system’.​ The actual case: from manual operation and maintenance to the intelligent control of the leap In a smart city renovation project in the Yangtze River Delta, 2,000 passive electronic locks were deployed in the street light control box with an intelligent APP management system to realise. Management Dimension​ Traditional Solutions Intelligent Solutions Efficiency Improvement​ Single box inspection time 8 minutes / time 3 minutes per inspection 62.5% increase Annual maintenance cost 1.8 million 0.6 million 66.7% decrease Unusual event response time 90 minutes 5 minutes 18x improvement Privilege Misuse Rate 12%​ 0%​ Zeroing What's more, through the APP batch authorisation function, the operation and maintenance team has moved from the ‘keychain era’ of carrying 30+ keys to the intelligent era of ‘one machine for the whole city’, and the average daily volume of equipment handled by the inspectors has increased from 80 to 200, which has optimised the manpower cost significantly. Technical parameters and adaptability  Environmental adaptability: operating temperature - 40 ℃ ~ 85 ℃, humidity 0-95% RH (non-condensing) · communication mode: RFID near-field communication (fast authorisation within 10cm), supports Bluetooth 5.0 and APP direct connection. · Installation Adaptation: Compatible with 90% of the mainstream control box lock hole size, 10 minutes to complete the old and new replacement, without cabinet modification. System compatibility: support docking city lighting management platform (e.g. Kijiyun, Graffiti Intelligence), open API interface to achieve data interoperability. Four values of choosing smart programmes . Core Cost Reduction: 60% lower 3-year TCO than traditional solutions, with a 12-month payback on initial investment. . Security upgrade: double encryption + real-time alarm, illegal invasion blocking rate increased to 98%. . Data-driven: full-link operation records provide data support for lighting system optimisation (e.g. high-frequency fault area analysis). . Future-ready: Modular design supports function expansion and easy access to the smart city IoT ecosystem. Conclusion When the street light control box becomes the ‘end nerve’ of the smart city, its management efficiency directly affects the reliability of urban lighting and operation and maintenance costs. The combination of industrial passive electronic lock and mobile phone APP not only solves the environmental adaptability and authority management problems of traditional locks, but also transforms the control box from ‘passive maintenance’ to ‘active intelligent control’ by means of data and intelligence. From the landscape lighting in the busy business district to the basic lighting of suburban roads, it redefines street light operation and maintenance with technological innovation -- letting every lock opening become a data-driven intelligent operation, allowing the urban lighting network to run stably in extreme environments, and injecting reliable ‘end nerves’ for the construction of smart cities. Choose industrial passive electronic lock + intelligent APP, so that the street light control box management from now on to say goodbye to the key trouble, open a new era of intelligent city lighting operation and maintenance!

In the railway system, the security management of facilities such as fences, equipment boxes, substations and other facilities along the line is always facing serious challenges: thousands of kilometres of line distribution of tens of thousands of locks, traditional mechanical locks with a large number of keys easy to lose, electronic locks with high cost of battery replacement, the frequency of failures in extreme environments, and low efficiency of manual inspections ...... These pain points not only increase the operational These pain points not only increase the operating cost, but also may lead to equipment exposure, illegal invasion and other security risks due to the failure of locks. Industrial passive electronic locks with ‘a key to control ten thousand locks’ subversive design to break the game, with passive power supply technology and industrial-grade durability, for railway fence management to create a ‘cost reduction, efficiency, security’ of the whole scenario solutions, redefine the large infrastructure locks management mode. lock management mode of large-scale infrastructure is redefined. Railway fence management three major pain points, traditional locks are difficult to deal with 1. Confusing key management, low inspection efficiency A high-speed railway line may be equipped with more than 20,000 mechanical locks, each lock corresponds to an independent key, and the management personnel need to carry a heavy key chain, which leads to frequent leakage and misopening phenomenon; although the traditional electronic locks support multiple locks and one key, the battery life is only 3-6 months, and replacing the batteries of tens of thousands of locks requires a lot of manpower and material resources. 2. Extreme environment, frequent failure, safety defences are easy to break the defence Railway line through the plateau, Gobi, coastal and other complex terrain, the traditional locks in - 40 ℃ low temperature (such as the Qinghai-Tibet line) or + 50 ℃ high temperature (such as the Turpan section) is prone to battery failure, deformation of the lock; humid salt spray environment (such as the southeastern coast) will lead to corrosion of the lock core, the incidence of failure of the ordinary scene is 30% higher. 3. Lack of authority supervision, difficult to trace abnormal events Traditional mechanical locks do not have operation records, and electronic locks have limited log capacity (usually only 500 entries), which cannot meet the strict regulatory requirements of the railway system for ‘who, when, and where to open the lock’, and it is difficult to quickly locate the responsible node in the event of equipment theft or illegal invasion. Industrial passive electronic locks: a key to open a new paradigm of railway management 1. Ten thousand locks and one key: subvert the traditional key management mode ·1 electronic key control 10000 locks: through the encryption authorisation system, managers only need to carry an electronic key to unlock all the fences and equipment box locks under their jurisdiction, bidding farewell to the ‘key chain nightmare’ and increasing the inspection efficiency by 80%. · authority hierarchical control: support three-level authority management (administrator, inspector, maintenance), can be accurately assigned by section (such as K100+500-K200+300), the type of equipment (substation, communication base station) unlocking privileges, to eliminate overstepping the authority of the operation. ·10000 log traceability: the lock has built-in high-capacity storage to record the time, key number and operation duration of each unlocking, and the data can be exported through the management system to meet the audit requirements of the railway safety supervision department. 2. Passive power supply technology: zero-fault operation in extreme environments · Bid farewell to battery dependence: no need for built-in batteries, powered by electromagnetic induction when the electronic key is close, single contact can be completed more than 200 times to unlock, from the root to solve the problems of low-temperature power outages, battery leakage, etc., for - 40 ℃ ~ +70 ℃ ultra-wide temperature environment (covering 99% of the climate of China's railways along the line). · Industrial grade durable design. · zinc alloy die-casting shell, salt spray test up to 96 hours (2 times of ordinary locks), 5 years rust-free in coastal areas. ·IP67 waterproof and dustproof, can withstand high-pressure water gun rinsing, adapt to the railway line dusty, heavy rain attack scene. · Resistant to 150N・m torque damage, effectively resist lock picking, hammering and other violent acts, guarding the safety of substations, signal boxes and other core equipment. 3. Installed and ready to use: compatible with 95% of existing railway facilities. · standardised interface design: adaptable to 30-80mm thickness fence gate, no need to modify the original lock hole, 15 minutes to complete the installation, compatible with angle steel fence, steel fence, concrete equipment boxes and other carriers. · Multi-system seamless docking: it can be connected to the Integrated Railway Surveillance System (ISCS), and linked with video surveillance and intrusion alarm to achieve ‘unlocking that is captured’ and ‘abnormal unlocking real-time warning’, and build a three-dimensional security system. Real Scene Verification: Full Terrain Adaptation from Plateau to the Coast 1. Qinghai-Tibet Railway: Stable choice in -40℃ low temperature In the uninhabited area above 4,500 metres above sea level, traditional electronic locks frequently fail due to battery freezing. Passive electronic locks, with electromagnetic induction power supply technology, have a response time of less than 0.5 seconds at -40℃, and there is no need to manually replace the batteries, thus reducing the inspection cost by 60%. 2. Guangzhou-Shenzhen Coastal Railway: a benchmark for rust prevention under salt spray environment In a strong corrosive environment with an average annual salt spray concentration of 0.3mg/m2/h, ordinary locks will rust and jam in 1 year, but the nickel-chromium plating layer of passive electronic locks forms a dense protective layer, with no rust stains on the appearance in 3 years and the smoothness of the lock cylinder rotation maintained at more than 98%. 3. Daqin Railway: a model of impact resistance under heavy transport Facing the vibration impact of 300 heavy-duty trains per day, the lock adopts shock-resistant spring structure design, and no loosening after 100,000 times of vibration test (amplitude ±2mm, frequency 50Hz) to ensure that there is no problem of poor contact and accidental unlocking in long-term operation. Four core values for upgrading railway fence management Pain Points Solved​ Passive Electronic Lock Value Data Comparison​ High key management costs 1 key to control 10,000 locks, inspection efficiency increased by 80 Traditional solution: carry 50 keys / person → new solution: 1 key / person High maintenance cost Passive design eliminates the need for battery replacement, and the whole life cycle is maintenance-free. Average annual maintenance cost reduced from $12/key to $1.5/key. Poor reliability in extreme environments Wide temperature range of -40℃~+70℃, IP67 protection level. Failure rate reduced from 15% to less than 2 Non-transparent security monitoring 10000 log records + hierarchical authority management Abnormal event traceability reduced from 48 hours to 5 minutes Reason for choice: when industrial quality meets railway demand For railway operators, industrial passive electronic lock is not only a lock, but also a set of ‘cost reduction and efficiency + safety upgrade’ system solutions: ✅ Full Scenario Adaptation: from the plateau tundra to the coastal salt spray, from the high-speed rail line to the existing transformation, without the need to customize the program for different environments; ✅ Leap in Management Efficiency: a single person can inspect 500 locks (the traditional solution is only 100) in a single day, releasing 60% of the inspection manpower into the core business; ✅ Security Level Leap: authority control + operation traceability + physical protection triple guarantee to meet the Railway Technical Management Regulations ✅ Management efficiency leap: a single person can inspect 500 locks in a single day (the traditional solution is only 100), releasing 60% of inspection manpower into the core business; ✅ Security level leap: authority control + operation traceability + physical protection triple guarantee, to meet the ‘Railway Technical Management Regulations’ on the equipment safety of the strict requirements; ✅ Long-term cost optimization: 5 years of use, the overall cost of the traditional solution is reduced by 40%, the real realization of ‘Once invested, long-term peace of mind’. In the ‘intelligent railway’ construction wave, the details determine the safety bottom line. Industrial passive electronic locks with ‘a key to control ten thousand locks’ innovative design, to crack the railway fence management of the millennium problem, so that every time to open the lock has become a controllable, traceable, reliable security operations, for the miles of railway lines constructed never fail ‘digital fence’. Inquire now for intelligent management solutions for railway fencing, let technology empower railway safety and guard every metre of line with innovation!

Under the wave of new retail, vending machines have become the “capillaries” of the retail industry by virtue of the advantages of 24-hour unattended operation and strong scene adaptability. However, equipment safety and maintenance problems in extreme environments have always plagued operators -- low temperatures lead to battery failure, high temperatures trigger lock failures, and humid environments cause rust and corrosion ...... Traditional electronic locks are “not suited to the soil and water ”, making the reliability of unmanned retail scenarios much less reliable. Zinc alloy industrial passive electronic locks break the ice with industrial-grade hardcore performance. With -25℃~+65℃ wide temperature adaptability and passive power supply technology , it creates an all-weather security line of defense for vending machines and redefines the durability and stability of industrial locks. Industrial grade zinc alloy material: anti-build and weather-resistant, suitable for complex scenes Vending machines are often deployed in outdoor, cold chain warehouses, industrial plants and other environments, where the locks need to withstand temperature shocks, humidity, dust and even minor impacts. Traditional plastic or ordinary metal locks are prone to aging and deformation, while zinc alloy industrial passive electronic locks use high-strength zinc alloy die-casting molding, through three core advantages to deal with industrial-grade challenges: 1. Corrosion-resistant plating process, no rust in humid environment Surface by multi-layer nickel-chromium plating treatment, the formation of dense protective film, salt spray test up to 72 hours (far more than ordinary locks 48 hours standard), even in the rainy season in the south or coastal high humidity scenarios, the lock body can still maintain smooth opening and closing, to eliminate the rust caused by the lock, hard to open and other issues. 2. Stable operation in wide temperature, no deformation in extreme temperature difference. Through -25℃ low-temperature cold shock and +65℃ high-temperature durability test, the coefficient of thermal expansion of zinc alloy material is as low as 27×10-⁶/℃, so that the lock body structure does not shrink or deform in both hot and cold environments (e.g., outdoor in winter in the north and on the street in hot summer in the south), which ensures that the electric circuitry and mechanical parts work together in a stable manner and avoids poor contact or jamming phenomenon due to the temperature difference. 3. High-strength impact resistance, resisting external damage Zinc alloy hardness of HB80-100, better than ordinary aluminum alloy (HB60-80), can withstand 100N・m torque destructive force, effectively resist lock picking, impact and other violent acts, to provide a physical layer of security for high-value goods (such as electronic products, medicines) in the vending machine. Passive power supply technology: goodbye to batteries, cost reduction and efficiency double breakthroughs Traditional electronic locks rely on battery power, not only need to be replaced regularly (20% increase in the average annual maintenance cost of a single device), but also due to battery leakage, low-temperature power outages may lead to lock failure, resulting in cargo damage or user complaints. Passive electronic locks subversive use of electromagnetic induction power supply technology to achieve “zero battery” operation: 1. One touch of the electronic key, the energy is ready to use When the supporting electronic key is close to the lock, it instantly activates the energy collection module, converting electromagnetic induction energy into unlocking power, and a single power supply can complete more than 1,000 unlocking (laboratory data). Operators do not need to replace batteries for hundreds of devices one by one, and the amount of equipment that can be maintained by a single person in a single day can be increased by 5 times, significantly reducing the cost of labor and consumables. 2. Electromagnetic compatibility design, reject signal interference Zinc alloy shell naturally shield electromagnetic interference, combined with the EMC electromagnetic compatibility design of the lock circuit, even if installed in a high-frequency electromagnetic environment (e.g., next to the factory switchboard box), can prevent false triggering or signal disruption, to ensure that the unlocking logic is 100% reliable. -25 ℃ ~ +65 ℃ limit test: data to verify durability To ensure stability in extreme environments, zinc alloy industrial passive electronic locks have passed three stringent tests. 1. High and low temperature cycling test After 24 hours of standing in -25℃ environment, immediately transfer to +65℃ high temperature box for 12 hours, repeat 50 cycles. Tests show that: the lock body mechanical parts wear rate <0.1%, the circuit response time to maintain ≤ 0.3 seconds, far exceeding the industry standard (ordinary locks in - 10 ℃ below the response delay increased by 30%). 2. Humidity alternation test Running in 85% RH high humidity environment for 30 days, no rust spots on the surface of the lock body, the insulation resistance of the internal circuit board>100MΩ, fully meet the moisture-proof requirements of the rainy season and cold chain storage in the south. 3. Drop impact test The lock body has no cracks and functions well after 10 falls from 1.5 metres to the concrete floor, which is suitable for the accidental collision scenarios during the transportation and installation of vending machines. Exclusive solutions for vending machines: double upgrading of safety and efficiency For unmanned retail scenarios, zinc alloy industrial passive electronic locks provide three core values. 1. Hierarchical management of permissions, traceable data The supporting management system supports 1 electronic key to control 10,000 locks. Operators can assign permissions by region and equipment type (e.g., maintenance personnel can only open designated cabinets), and record 10,000 unlocking logs (time, key number, operation type), with abnormal unlocking automatically triggering an early warning, allowing for smarter equipment management. 2. Installed and ready to use, compatible with 99% of the models on sale Standardised lock size (adaptable to 30-50mm thick door), no need to modify the existing vending machine structure, installation can be completed in 10 minutes, compatible with beverage machines, fresh food cabinets, mask vending machines and other mainstream models, reducing the cost of equipment upgrades. 3. Full life cycle maintenance-free From installation to decommissioning, there is no need to replace batteries or lubricate, and the average daily cost is as low as $0.01, which saves 70% of maintenance expenses compared with traditional electronic locks, and truly realises ‘installation is worry-free’. Reason for choice: when industrial-grade quality meets new retail needs For vending machine operators, choosing zinc alloy industrial passive electronic locks is not only buying a lock, but also investing in a set of ‘cost reduction + efficiency + risk avoidance’ solutions for the whole scenario: ✅ Reliable use in extreme environments: -25℃~+65℃ wide-temperature operation, covering more than 95% of the geographic climate zones; ✅ Maintenance costs are reduced by 70%! ✅ Maintenance cost reduced by 70%: passive design eliminates battery replacement, key management improves inspection efficiency; ✅ Security level upgraded: zinc alloy protection + electromagnetic shielding + rights management, triple protection of commodity security; ✅ Flexible adaptation and easy to install: standardised interfaces are compatible with mainstream models, and there is no threshold for the transformation of new and old equipment. In today's unmanned retail competition, details determine success or failure. Zinc alloy industrial passive electronic locks redefine the safety of vending machines with industrial-grade standards, so that every opening and closing becomes a reliable guarantee, so that every device can operate stably in extreme environments. Enquire today for an unmanned retail security upgrade solution that will allow your network of vending machines to operate efficiently without fear of temperature differences, unlocking the infinite possibilities of new retail!