A cable nfc identification management system and method for open-pit mine

Abstract

The application provides an open-pit mine cable NFC identification management system and method, comprising a pair of NFC identification devices, an outdoor three-proof NFC handheld reading terminal and a cloud cable asset management platform. The double-end homologous NFC identification device is fixed at both ends of the open-pit mine cable, the device adopts an ultraviolet-resistant, high and low temperature-resistant and adjustable holding structure, an internal passive NFC chip stores cable number, length, wire diameter, voltage grade and full life cycle operation and maintenance data, external power supply is not needed, on-site non-contact rapid reading is realized through the handheld terminal, data is synchronized to the cloud platform to complete the closed-loop control of filing, inspection, relocation, maintenance, inventory and scrap. The application solves the problems of easy failure of open-pit mine cable identification, low efficiency of manual checking, no traceability of information and poor environmental adaptation, has the advantages of weather resistance, durability, quick reading, convenient installation, full-process traceability and efficient operation and maintenance, and is suitable for intelligent asset management and on-site operation and maintenance of various open-pit mine power cables and control cables.

Description

Technical Field

[0001] This invention relates to the field of intelligent asset management technology in mines, specifically to an NFC identification management system and method for open-pit mine cables that is adapted to the harsh environment of open-pit mines, including high temperature, strong winds and sandstorms, rain erosion, mechanical crushing and dragging, and strong ultraviolet radiation. This system achieves rapid identification of cable identity, full life-cycle digital traceability, and intelligent operation and maintenance inventory by deploying NFC near-field communication tags at both ends of the cable. Background Technology

[0002] Open-pit mines are characterized by a wide working area, dispersed equipment, numerous mobile devices, harsh cable laying environment, large power cable consumption, and frequent transfer and allocation. As the power transmission and control signal transmission carrier for key equipment such as electric shovels, drilling rigs, crushers, drainage systems, mobile substations, lighting systems, and belt conveyor systems in open-pit mines, cables are the core electrical infrastructure to ensure continuous operation of open-pit mines.

[0003] Currently, open-pit mine cable management generally adopts traditional methods such as manual inkjet coding, metal tags, paper ledgers, and on-site verification of each cable. These methods are completely unsuitable for the complex and harsh natural environment and high-frequency operation and maintenance requirements of open-pit mines, and have the following prominent technical defects: The labels are easily damaged and the information cannot be preserved for a long time: Open-pit mines face extreme working conditions such as strong wind and sand abrasion, rain and water, high temperature exposure, ultraviolet aging, vehicle crushing and dragging, and mud pollution. Traditional metal tags are easily deformed and fall off, inkjet printing quickly becomes blurred and rusted, and paper labels are directly damaged. Core data such as cable number, specifications, length, and usage information are completely lost in a short period of time, resulting in a complete disconnect between the physical cable and the ledger.

[0004] Manual verification is extremely inefficient and maintenance costs remain high: the operation area of ​​open-pit mines can reach several square kilometers, and the cables are laid out in a scattered manner, across regions, and with a mixture of lengths and specifications. Daily inspections, specification verification, and asset inventory require manual searching and comparison of each cable on foot or by car, which takes a very long time. In particular, when reusing old cables, temporarily relocating them, or troubleshooting, it is impossible to quickly identify cable parameters, which can easily lead to misuse, mixing, and idle waste.

[0005] The entire life cycle lacks traceability, resulting in extensive and chaotic management: Traditional methods can only mark simple numbers and cannot simultaneously record full-dimensional data such as cable factory information, actual length, wire diameter, voltage level, laying location, maintenance and test records, relocation and allocation history, and scrapping cycle. There is no closed-loop traceability for cables from warehousing, commissioning, relocation to scrapping. When problems such as overdue service, use with defects, mismatched specifications, and asset loss occur, it is impossible to trace the source and hold the responsible party accountable.

[0006] Without intelligent management and control measures, fault handling is lagging behind: When cables in open-pit mines fail, are damaged, or are lost, maintenance personnel cannot quickly locate the cable's ownership, specifications, and laying path. They can only blindly investigate, which greatly prolongs the power outage and downtime, directly affecting the efficiency of continuous mining operations in open-pit mines and causing economic losses.

[0007] Existing general-purpose tags lack adaptability to outdoor working conditions: Ordinary NFC tags and electronic tags on the market are only suitable for indoor or mild outdoor environments. They do not have the properties of resistance to ultraviolet rays, crushing, mud and sand erosion, high and low temperatures, and mechanical dragging. Direct use in open-pit mining environments will cause them to break down and fail quickly, and they cannot meet the requirements for long-term outdoor attachment.

[0008] In summary, existing cable identification and management methods are no longer suitable for the harsh working conditions and intelligent management needs of open-pit mines. There is an urgent need to develop a cable NFC identification and management system that is suitable for the extreme environment of open-pit mines, has stable information storage, fast identification, and full life cycle traceability. Summary of the Invention

[0009] The purpose of this invention is to overcome the above-mentioned defects of the prior art and provide an NFC identification management system and method for open-pit mine cables. It aims to achieve unique cable identification binding, contactless rapid identification, and full life-cycle digital closed-loop management by using a dual-end passive NFC identification device adapted to the extreme working conditions of open-pit mines, combined with an outdoor rugged handheld reader terminal and a cloud asset management platform. This completely solves the industry pain points of traditional open-pit mine cable identification being prone to failure, low maintenance efficiency, and lack of information traceability.

[0010] According to one objective of the present invention, an NFC identification management system for open-pit mining cables is provided, comprising an NFC identification device, an NFC handheld reader terminal, and a cloud-based cable asset management platform; the NFC identification devices are arranged in pairs and fixedly installed at the beginning and end terminals of a single open-pit mining cable, respectively, with each end being identified and bound to the same cable's unique identification information; the NFC identification device consists of an external weather-resistant protective shell, an internal passive NFC identification module, a flexible fixing and clamping mechanism, and a fully enclosed sealing filling layer; the passive NFC identification module has a built-in NFC chip and an anti-interference planar antenna, and the chip stores comprehensive identity data of the cable, including its unique number, model, length, wire diameter, voltage level, laying information, maintenance records, and scrapping period; the NFC identification device is a passive, power-free structure, relying on the radio frequency signal emitted by the NFC handheld reader terminal for identification.

[0011] Furthermore, the external weather-resistant protective shell is integrally injection molded from UV-resistant ABS engineering plastic and glass fiber reinforced composite material. The outer surface of the shell is covered with a weather-resistant and anti-aging coating, which can withstand the extreme high and low temperatures, strong ultraviolet radiation, and wind and sand erosion environment of open-pit mines for a long time without aging, deformation, or cracking.

[0012] Furthermore, the NFC tagging device adopts a fully enclosed snap-on sealing structure, with double-layer waterproof rubber rings at the joints of the shell and an internal polyurethane sealant layer, providing excellent waterproof, dustproof, and mud penetration prevention performance.

[0013] Furthermore, the flexible fixing and clamping mechanism is an adjustable elastic clamp structure with anti-slip buffer pads on the inner wall. It adapts to the outer diameter of various specifications of open-pit mine power cables and control cables, achieving a secure fixation without damage, and has anti-drag, anti-loosening, and anti-fall-off properties.

[0014] Furthermore, the NFC identification module adopts high-frequency near-field communication technology, has sufficient storage capacity and suitable non-contact reading distance, and also has strong anti-electromagnetic interference capability, enabling stable reading under conditions of open-pit mine wind and sand obstruction, mud adhesion, and strong electromagnetic interference.

[0015] Furthermore, the NFC chip adopts a dual-partition storage mode, which is divided into a fixed information read-only partition and a dynamic maintenance read-write partition. The fixed information read-only partition stores the core identity information of the cable and cannot be tampered with, while the dynamic maintenance read-write partition is used by authorized maintenance personnel to update dynamic information such as inspection, maintenance, relocation, and scrapping.

[0016] Furthermore, the NFC handheld reader terminal is an outdoor rugged smart handheld terminal with NFC fast reading, local data storage, wireless transmission, offline inventory, information retrieval, and anomaly marking functions, enabling rapid information retrieval and data synchronization at the open-pit mine site.

[0017] Furthermore, the cloud-based cable asset management platform is equipped with a cable filing and warehousing module, a regional laying and positioning module, a daily inspection management module, a relocation and allocation control module, a maintenance and testing early warning module, an intelligent asset inventory module, and a fault tracing and query module, thereby realizing digital closed-loop management of the entire cable lifecycle.

[0018] Furthermore, the NFC tagging device has a streamlined, flat, round structure, making it compact and lightweight. It adopts a quick-release snap-on installation method, requiring no tools or damage to the cable itself, and can be quickly attached to both ends of new and old cables.

[0019] According to another objective of the present invention, the present invention provides a method for full life-cycle management of open-pit mine cables based on the above-described system, comprising the following steps: Each cable is assigned a unique number, and its core specifications are written into the dual-end NFC identification device to complete the identity binding. The identification device is fixed at both ends of the cable. After the cable is laid, the laying area and equipment information are entered through the NFC handheld reading terminal and synchronized to the cloud cable asset management platform. The cable information and operating status can be verified by non-contact reading of the cable label at any end using a handheld terminal, and the inspection results can be recorded electronically. The system automatically records the entire process of cable relocation, maintenance, testing, and idle status by scanning codes and updating the data. By using handheld terminals to read labels in batches, inventory reports are automatically generated, and the reconciliation of accounts and physical inventory is completed. The system automatically issues warnings based on the service life and test data, marks unqualified or expired cables as scrapped, and completes closed-loop disposal.

[0020] The technical solution of this invention solves the problem of cable identity not being cross-verified due to the easy failure of traditional single-end tags by using a dual-end homogeneous NFC tag design; the passive and power-free structure is perfectly adapted to the large-scale mobile operation scenario of open-pit mines without external power supply; integrating a weather-resistant protective shell, a fully enclosed sealing structure and a flexible clamping and fixing mechanism, it can work stably for a long time under extreme working conditions such as high temperature, strong wind and sand, and mechanical dragging and crushing; combined with a handheld reading terminal and cloud platform, it realizes non-contact rapid identification of cables and full-dimensional data management, completely reversing the situation of inefficiency and information gaps in traditional manual management, and significantly improving the efficiency of cable operation and maintenance and the level of refined asset management in open-pit mines. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is an overall architecture diagram of the NFC identification management system for open-pit mine cables according to an embodiment of the present invention; Figure 2 This is a cross-sectional structural diagram of the NFC tagging device according to an embodiment of the present invention; Figure 3 This is a three-dimensional structural diagram of the NFC tagging device according to an embodiment of the present invention; Figure 4 This is a flowchart illustrating the full lifecycle management method for open-pit mine cables according to an embodiment of the present invention.

[0023] In the picture: 1. NFC tagging device; 101. UV-resistant and weather-resistant upper shell; 102. Double-layer waterproof sealing ring; 103. NFC chip; 104. Anti-interference planar antenna; 105. Polyurethane sealing and filling layer; 106. Fiberglass reinforced lower shell; 107. Adjustable elastic clamp; 108. Anti-slip rubber cushioning pad; 109. Quick-release locking buckle; 2. NFC handheld reader terminal; 3. Cloud-based cable asset management platform. Detailed Implementation

[0024] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Example 1 like Figures 1-3 As shown, this embodiment discloses an NFC identification management system for open-pit mine cables, including an NFC identification device 1, an NFC handheld reader terminal 2, and a cloud-based cable asset management platform 3. The NFC identification device 1 has an overall flat, round, streamlined structure, including an ultraviolet-resistant and weather-resistant upper shell 101, a double-layer waterproof sealing ring 102, a high-capacity NFC chip 103, an anti-interference planar antenna 104, a polyurethane sealing filling layer 105, a fiberglass-reinforced lower shell 106, an adjustable elastic clamp 107, an anti-slip rubber buffer pad 108, and a quick-release locking buckle 109.

[0028] The upper housing 101 is integrally injection molded from UV-resistant ABS engineering plastic, with a fluorocarbon weather-resistant and anti-aging coating on the surface; the lower housing 106 is made of glass fiber reinforced ABS composite material to improve overall mechanical strength. The upper housing 101 and the lower housing 106 are pressed and sealed by quick-release locking buckles 109, and double-layer waterproof sealing rings 102 are embedded at the joint. The internal cavity is filled with a polyurethane sealing layer 105, which completely encloses the NFC chip 103 and the anti-interference planar antenna 104, preventing moisture and dust from entering, and the overall protection level reaches IP67.

[0029] An adjustable elastic clamp 107 is fixed to the bottom of the lower housing 106, and an anti-slip rubber buffer pad 108 is attached to the inner wall. The inner diameter of the clamp can be adaptively adjusted within the range of Φ10mm to Φ150mm by adjusting bolts. In this embodiment, the clamp is adapted to a 10kV power cable with an outer diameter of 85mm. The anti-slip rubber buffer pad 108 fits tightly against the outer sheath of the cable, ensuring a firm fixation, preventing slippage and detachment, while also avoiding mechanical scratches and pressure damage to the cable sheath.

[0030] The NFC chip 103 uses the NTAG216 high-stability passive NFC chip, operating at a frequency of 13.56MHz, with a storage capacity of 888 bytes, an effective reading distance of 50mm, and strong resistance to electromagnetic interference. The chip is divided into a read-only area and a read-write area: the read-only area stores fixed information such as the cable's unique serial number, model, wire diameter, voltage rating, and manufacturing date, which is locked and cannot be modified after manufacturing; the read-write area stores dynamic information such as the date of commissioning, laying area, associated equipment, inspection records, maintenance and test data, relocation and allocation records, and expiration date, which can be updated via an authorized handheld terminal.

[0031] In this embodiment, the specific data stored in the NFC chip 103 is shown in the following example: Unique serial number: LTK-LD-202605068 Cable type: YJV22 8.7 / 10kV 3×240mm 2 Nominal length: 400m Actual laying length: 380m Voltage level: 8.7 / 10kV Conductor wire diameter: 240mm² Insulation material: Cross-linked polyethylene Manufacturing date: 2025-09-12 Commissioning date: 2026-03-10 Laying area: No. 1 working face of the eastern mining area of ​​the open-pit mine Equipment: #1 Mobile Substation Recent inspection: May 10, 2026, appearance intact, operation normal. Inspection and testing: April 28, 2026, insulation withstand voltage test passed. Scrapping deadline: 2031-03-09 The NFC handheld reader terminal 2 is an industrial-grade rugged outdoor smart terminal with an IP65 protection rating. It supports an operating temperature range of -20℃ to +60℃ and has built-in NFC read / write modules, 4G full network connectivity modules, WiFi modules, and large-capacity local storage. Maintenance personnel can simply bring the handheld terminal close to the marking device at any end of the cable to read and display all cable information within one second. In open-pit mines without network coverage, data can be temporarily stored locally and automatically synchronized to the cloud-based cable asset management platform 3 after connecting to the network.

[0032] The cloud-based cable asset management platform 3 adopts a B / S architecture and is deployed on a private cloud server in the open-pit mine, supporting simultaneous access from multiple terminals. The platform's core functional modules are as follows: Cable filing and warehousing module: Supports batch import of cable manufacturing information, automatic generation of globally unique numbers, batch writing to NFC identification devices, and creation of electronic files; Regional cable laying positioning module: Binds open-pit mining faces, crushing stations, substations, and equipment numbers to generate a visual cable laying distribution map; Daily inspection management module: Develop inspection plans, record inspection time, inspector, and operating status, create an electronic inspection log, and support abnormal status marking and work order dispatch; Relocation and allocation control module: Tracks the entire process of cable dismantling, relocation, reuse, idleness, and recycling, and automatically records the operator, operation time, and transfer path; Maintenance and testing early warning module: Input test data such as withstand voltage and insulation resistance, automatically calculate the next test time, and provide pop-up and SMS warnings for cables that have not been inspected or are nearing the end of their service life; The intelligent asset inventory module supports batch scanning and inventory counting using handheld terminals, automatically compares the data with the ledger to generate inventory discrepancy reports, and marks surplus, shortage, and abnormally functioning cables. Fault tracing and query module: Enter the cable number or scan the code to query the entire life cycle history of the cable, and quickly locate the laying path, historical maintenance records and responsibility of the faulty cable.

[0033] Example 2 This embodiment provides the process for using the above system in an open-pit mine, such as... Figure 4 As shown, the specific steps are as follows: Warehousing and Filing: After the new cables arrive, the management personnel use a desktop card writing device to enter the basic information of the cables into pairs of NFC tagging devices, and pre-install the tagging devices at both ends of the cables to complete the identity binding; Laying and binding: After the cable is laid to the No. 1 working face of the East Mining Area, the maintenance personnel use an NFC handheld reader terminal to scan the tag, enter the laying area, the equipment to which it belongs, and the commissioning time, and the data is automatically uploaded to the cloud platform; Routine inspection: In the working face of the East Mining Area, the inspection personnel hold a handheld terminal close to any end of the cable marker, retrieve all information within 1 second, verify the cable specifications and operating status, and mark the inspection result as "appearance intact, operation normal". Relocation and transfer: Six months later, the cable was dismantled and relocated to the No. 2 working face in the West Mining Area for reuse. The maintenance personnel scanned the code to update the laying area and the equipment to "No. 2 working face in the West Mining Area, No. 2 mobile substation". The system automatically saved the transfer record. Inspection and testing: After the cable completes the annual insulation withstand voltage test, the test data "2027-04-15, insulation resistance 1200MΩ, withstand voltage test qualified" is written into the chip maintenance partition. The system automatically updates the maintenance log and issues a warning that the next test time is 2028-04-14. Asset inventory: At the end of the month, maintenance personnel drive along the cable laying route to scan the barcodes in batches. The system automatically generates an inventory list, which is compared with the ledger to show that the accounts and the actual assets are consistent. Disposal of cables: In March 2031, the system will automatically issue a disposal warning. Maintenance personnel will conduct insulation testing on the cables. After confirming that the insulation performance is unqualified, they will scan the code to mark the cable as scrapped. The system will then lock the reuse permission of the cable, completing the closed-loop disposal process.

[0034] Operating condition adaptability performance verification After 365 days of continuous on-site testing at a large open-pit mine, all performance characteristics of this marking device met the usage requirements. Environmental tolerance: After continuous placement in extreme temperature environments ranging from -50℃ to +65℃, the shell shows no cracking, aging, or deformation. Protective performance: After being exposed to heavy rain for 72 hours and covered with mud for 30 days, it can be read normally after being wiped clean, with no water or dust entering the interior; Mechanical performance: After withstanding light crushing by vehicles weighing less than 10 tons, dragging of 100 meters of cable, and continuous wear from strong winds and sand, the marking device remains intact, without falling off, being damaged, or shifting. Reading performance: Under conditions of strong electromagnetic interference and 5mm dust obstruction in open-pit mine mobile substations, the effective reading rate is 100%. Fixing performance: After 12 months of long-term outdoor installation, there is no loosening or slippage, and no damage to the cable sheath.

[0035] This invention is designed specifically for the working conditions of open-pit mines and has the following significant advantages compared to existing traditional cable management technologies: This invention has strong adaptability to extreme environments and the markings are durable and effective: it adopts weather-resistant and anti-aging materials, IP67 fully sealed structure and anti-rolling and anti-drag design, which is fully adaptable to the harsh environment of open mines such as high and low temperature, strong ultraviolet rays, wind and sand, rain and mud. The service life of the marking device is synchronized with the service life of the cable, completely solving the problem of short-term failure of traditional markings.

[0036] This invention features a unique identity bound at both ends, ensuring accurate identification: both ends of a single cable are simultaneously equipped with a source identification device, enabling reading from either end and cross-verification between both ends. This eliminates problems such as incorrect cable swapping, misuse, and mismatched information, achieving "one cable, one code, traceable throughout, and unique identity".

[0037] This invention features passive rapid identification, significantly improving operation and maintenance efficiency: The passive and power-free design eliminates the need for wiring and charging, enabling on-site non-contact rapid code scanning and identification. Compared to traditional manual cable inspection, this method improves efficiency by more than 95%, greatly reducing the time required for large-scale cable inventory, fault diagnosis, and specification verification in open-pit mines.

[0038] This invention digitizes the entire lifecycle of cables, enabling precise closed-loop management: from cable warehousing to scrapping and disposal, the entire process of data is electronically stored, traceable, and auditable, completely solving the problems of chaotic cable circulation, unclear assets, and ambiguous responsibilities in open-pit mines, and achieving refined, standardized, and intelligent management.

[0039] This invention has wide installation adaptability and extremely low deployment cost: the adjustable clamp is compatible with all specifications of open-pit mine cables, the snap-on installation requires no tools or damage to the cable body, both new and old cables can be quickly installed, no need to modify the existing power supply system, simple to implement and low investment cost, suitable for large-scale and comprehensive promotion in large open-pit mines.

[0040] This invention reduces production downtime losses and improves operational continuity: faulty cables and cables to be reused can be quickly identified by parameters and laying paths, significantly shortening emergency response and maintenance time, reducing equipment downtime and power outages caused by cable inspection errors, and ensuring continuous mining production in open-pit mines.

[0041] This invention enables lean asset management and reduces waste and loss: by quickly locating idle, spare, and obsolete cables through the system, the cable reuse rate is improved, duplicate purchases and asset loss are avoided, and the operation and maintenance costs of electrical consumables in open-pit mines are effectively reduced.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An NFC identification management system for open-pit mine cables, characterized in that, The system includes an NFC identification device, an NFC handheld reader terminal, and a cloud-based cable asset management platform. The NFC identification devices are installed in pairs, fixedly mounted at the beginning and end of a single open-pit mining cable, respectively, with each end identified by a unique identifier for the same cable. Each NFC identification device consists of an external weather-resistant protective shell, an internal passive NFC identification module, a flexible fixing and clamping mechanism, and a fully enclosed sealing layer. The passive NFC identification module has a built-in NFC chip and an anti-interference planar antenna. The chip stores comprehensive identification data for the cable, including its unique number, model, length, wire diameter, voltage level, laying information, maintenance records, and expiration date. The NFC identification device is a passive, power-free structure, relying on radio frequency signals emitted by the NFC handheld reader terminal for identification.

2. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The external weather-resistant protective shell is integrally injection molded from UV-resistant ABS engineering plastic and glass fiber reinforced composite material. The outer surface of the shell is covered with a weather-resistant and anti-aging coating, which can withstand the extreme high and low temperatures, strong ultraviolet radiation, and wind and sand erosion environment of open-pit mines for a long time without aging, deformation, or cracking.

3. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The NFC tagging device adopts a fully enclosed snap-on sealing structure, with double-layer waterproof rubber rings at the joints of the shell and an internal polyurethane sealant layer, providing excellent waterproof, dustproof, and mud penetration prevention performance.

4. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The flexible fixing and clamping mechanism is an adjustable elastic clamp structure with anti-slip buffer pads on the inner wall. It adapts to the outer diameter of various specifications of open-pit mine power cables and control cables, achieving a secure fixation without damage, and has anti-drag, anti-loosening, and anti-fall-off properties.

5. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The NFC identification module adopts high-frequency near-field communication technology, has sufficient storage capacity and suitable non-contact reading distance, and has strong anti-electromagnetic interference capability, and can stably read under the conditions of open-pit mine wind and sand cover, mud adhesion and strong electromagnetic interference.

6. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The NFC chip adopts a dual-partition storage mode, which is divided into a fixed information read-only partition and a dynamic maintenance read-write partition. The fixed information read-only partition stores the core identity information of the cable and cannot be tampered with, while the dynamic maintenance read-write partition is used by authorized maintenance personnel to update dynamic information such as inspection, maintenance, relocation, and scrapping.

7. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The NFC handheld reader terminal is an outdoor rugged smart handheld terminal with NFC fast reading, local data storage, wireless transmission, offline inventory, information retrieval, and anomaly marking functions, enabling rapid information retrieval and data synchronization at the open-pit mine site.

8. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The cloud-based cable asset management platform is equipped with a cable filing and warehousing module, a regional laying and positioning module, a daily inspection management module, a relocation and allocation control module, a maintenance and testing early warning module, an intelligent asset inventory module, and a fault tracing and query module, realizing digital closed-loop management of the entire cable life cycle.

9. The NFC identification management system for open-pit mine cables according to claim 1, characterized in that, The NFC tagging device has a streamlined, flat, round structure, making it compact and lightweight. It adopts a quick-release snap-on installation method, requiring no tools or damage to the cable itself, and can be quickly attached to both ends of new and old cables.

10. A method for full life-cycle management of open-pit mine cables based on the system described in any one of claims 1 to 9, characterized in that, Each cable is assigned a unique number, and its core specifications are written into the dual-end NFC identification device to complete the identity binding. The identification device is fixed at both ends of the cable. After the cable is laid, the laying area and equipment information are entered through the NFC handheld reading terminal and synchronized to the cloud cable asset management platform. The cable information and operating status can be verified by non-contact reading of the cable label at any end using a handheld terminal, and the inspection results can be recorded electronically. The system automatically records the entire process of cable relocation, maintenance, testing, and idle status by scanning codes and updating the data. By using handheld terminals to read labels in batches, inventory reports are automatically generated, and the reconciliation of accounts and physical inventory is completed. The system automatically issues warnings based on the service life and test data, marks unqualified or expired cables as scrapped, and completes closed-loop disposal.

Images