Common-embedding activation system and method for intelligent safety tool labels

Abstract

The invention relates to the technical field of intelligent safety tool management, in particular to an intelligent safety tool label co-embedded activation system and method, and the system comprises a co-embedded label unit, a multi-mode activation terminal, an edge computing gateway and a block chain tracing platform. The co-embedded label unit adopts a double-chip framework of an identification chip and a security chip, is fixed at an adaptive mounting position of a tool through a self-repairing TPU (thermoplastic polyurethane) composite co-embedded structure, and is matched with a novel anti-falling adhesive to guarantee the stability; the multi-mode activation terminal integrates a radio frequency module, an electromagnetic induction module, an optical trigger module and a dynamic impedance matching self-calibration module to realize cross-material adaptation; the early warning module adopts LED light, acousto-optic and vibration graded early warning; the communication module supports low-power-consumption Bluetooth and NFC dual-mode communication; the edge computing gateway completes protocol conversion and SHA-256 encryption processing, and the block chain tracing platform achieves activation process evidence storage and full life cycle tracing.

Description

Technical Field

[0001] This invention relates to the field of intelligent safety tool management technology, specifically to a co-embedded activation system and method for intelligent safety tool tags. Background Technology

[0002] Safety tools and equipment are crucial for ensuring the personal safety of workers and the normal operation of equipment; their quality and condition directly affect operational safety. With the development of intelligent technologies, smart tags (such as RFID and NFC tags) are widely used for the identification and management of safety tools and equipment. The activation effectiveness, stability, and data security of these tags directly impact the accuracy and reliability of subsequent management. However, existing smart safety tool tag activation technologies face several problems that urgently need to be addressed: First, there are shortcomings in both adaptability and stability. Safety tools are made of various materials, including metals (such as the metal connectors of high-voltage grounding wires), insulation (such as the epoxy resin material of insulated operating rods), and composite materials. Different materials have significantly different effects on the propagation of activation signals. Existing single activation methods have poor adaptability. Radio frequency activation is easily shielded on metal surfaces, and electromagnetic induction activation has low energy coupling efficiency on insulating materials. At the same time, the label installation methods are unreasonable. Traditional adhesive labels are prone to falling off, and embedded labels are complex to install and have poor fit. After long-term use, they are prone to loosening. Affected by environmental humidity, temperature changes, and wear, the detachment rate is as high as 85% or more, which seriously affects the stability of activation.

[0003] Secondly, the data security and traceability of the activation process are insufficient. Existing activated tag data is mostly transmitted in plaintext or using simple encryption, making it susceptible to tampering and forgery. This leads to inaccurate identification information of tools and equipment, making it impossible to accurately trace key information such as manufacturers, verification records, and usage status. In the event of a safety incident, it is difficult to locate the responsible party through tag data. Furthermore, the activation data lacks a unified evidence storage platform, and data is not shared between different management systems, creating information silos that prevent full lifecycle traceability. The warning methods are also limited, relying solely on a single light indicator, which is easily overlooked in complex operating scenarios, leading to the risk of exceeding the expiration date.

[0004] Secondly, multi-tag interference and protocol compatibility issues are significant. When multiple safety tools are stored together on a construction site, existing activation technologies lack effective anti-interference mechanisms, making them prone to signal conflicts and resulting in activation misjudgment rates exceeding 20%. Furthermore, different manufacturers' tags use different communication protocols, and existing activation devices mostly support only a single protocol, requiring multiple terminals, increasing usage costs and operational complexity, and reducing management efficiency. Simultaneously, after tag activation, the equivalent impedance changes due to environmental factors and wear; existing technologies lack dynamic calibration mechanisms, leading to a significant decrease in activation success rate after long-term use and high maintenance costs.

[0005] Finally, the key security and environmental adaptability are insufficient. Existing tag activation keys are mostly fixed values, which pose a risk of leakage after long-term use. In addition, the tag packaging material has poor weather resistance and is prone to aging and damage in high and low temperature and humid environments, further aggravating activation failures.

[0006] In summary, existing intelligent safety tool tag activation technologies have significant shortcomings in terms of adaptability, fixation stability, data security, early warning effectiveness, compatibility, and long-term stability, failing to meet the needs of intelligent, efficient, and safe management. There is an urgent need for a tag co-embedded activation technology solution that can adapt to various materials, prevent detachment, ensure data security and traceability, have strong anti-interference capabilities, provide accurate early warnings, and maintain long-term stability and reliability. Summary of the Invention

[0007] This invention aims to solve the technical problems of existing intelligent safety tool tag activation technologies, such as poor adaptability, unstable fixation and easy detachment, easy data tampering, interference from multiple tags, protocol incompatibility, single warning, and insufficient long-term stability. It provides an intelligent safety tool tag co-embedded activation system and method that can adapt to tools made of various materials such as metal and insulation, has a high activation success rate, good anti-detachment effect, secure and traceable data, strong anti-interference ability, accurate warning, and compatibility with multiple protocols.

[0008] The technical solution adopted by this invention to solve its technical problem is: a co-embedded activation system for intelligent safety tools and equipment tags, comprising a co-embedded tag unit, a multimodal activation terminal, an edge computing gateway, and a blockchain traceability platform; the co-embedded tag unit adopts a dual-chip architecture of an identification chip and a security chip, and is fixed to a preset installation position on the safety tool and equipment through a self-healing TPU composite co-embedded structure, the co-embedded structure comprising a metal substrate adapter layer, a self-healing TPU insulating encapsulation layer, and an elastic fixing component; the identification chip stores the tool and equipment identity information, and the security chip stores the activation key and encryption algorithm; the multimodal activation terminal integrates a radio frequency activation module (outputting a 13.56MHz±5% radio frequency signal) and an electromagnetic induction activation module (outputting a 50Hz signal). The system includes a -1kHz alternating magnetic field, an optical triggering module, and a dynamic impedance matching self-calibration module. The dynamic impedance matching self-calibration module detects the equivalent impedance of the tag in real time and adjusts the excitation signal parameters. The edge computing gateway communicates with the multimodal activation terminal and the blockchain traceability platform, and has a built-in cross-protocol conversion unit and SHA-256 data encryption module. The blockchain traceability platform includes a data receiving, storage, and query module, and uses a consortium blockchain architecture to store activation data and full lifecycle information. The system also includes a graded early warning module (integrating LED lights, audible and visual alarms, and a vibrator) and a new type of anti-detachment adhesive (epoxy resin-based composite material with a bonding strength ≥2.5MPa). The communication module supports low-power Bluetooth and NFC dual-mode communication.

[0009] Specifically, the self-healing TPU insulating encapsulation layer is composed of TPU particles, polycaprolactone microcapsules and multi-component modifiers, with the polycaprolactone microcapsules accounting for 5%~8% of the mass, a self-healing efficiency of ≥85% (24h repair), and a temperature resistance range of -40℃~120℃.

[0010] Specifically, the novel anti-detachment adhesive contains nano-silica and silane coupling agent, has a damp heat aging resistance of ≥500h, is easy to peel off and replace without damaging the surface of tools and equipment.

[0011] Specifically, the graded early warning module implements three levels of early warning according to the test cycle and environmental parameters: Level 1 warning (near expiration) yellow LED is constantly lit; Level 2 warning (overdue) red LED flashes plus intermittent audible and visual alarm; Level 3 warning (abnormal environment) blue LED flashes plus continuous vibration.

[0012] Specifically, the dynamic impedance matching self-calibration module includes an impedance detection unit (detection accuracy ±0.1Ω), a signal adjustment unit, and a microcontroller. It adjusts the frequency and amplitude of the excitation signal through a digital potentiometer to achieve an impedance matching degree ≥90%.

[0013] Specifically, the blockchain traceability platform's consortium blockchain nodes include manufacturers, users, and regulatory nodes, and it uses Byzantine fault tolerance algorithm consensus verification with a data storage time of ≥5 years.

[0014] Specifically, the communication module has a low-power Bluetooth communication distance of ≥10m, an NFC communication distance of ≤10cm, and is compatible with ISO 15693, ISO 14443, and NFC-Forum protocols.

[0015] A method for co-embedding and activating smart safety tool tags, implemented using the aforementioned smart safety tool tag co-embedding and activation system, includes the following steps: S1: The co-embedded tag unit is fixed to the preset installation position of the tool through the self-healing TPU composite co-embedded structure, and a new type of anti-detachment adhesive is applied to press and position it to ensure no relative displacement. S2: The multimodal activation terminal locates the tag through the optical trigger module and identifies the material of the tool through the material detection module and selects the corresponding activation mode; S3: The dynamic impedance matching self-calibration module adjusts the excitation signal parameters in real time to ensure an impedance matching degree of ≥90%. S4: After the co-embedded tag unit is activated, the security chip verifies the legality of the key and the identification chip outputs the identity information; S5: The edge computing gateway encrypts data and uploads it to the blockchain traceability platform via dual-mode communication; S6: The blockchain traceability platform stores data and generates a unique traceability identifier; S7: Periodically activate verification, update evidence storage information, and implement tiered early warning.

[0016] Specifically, in step S2, material identification uses eddy current detection technology with an identification time of ≤50ms. For metal materials, the electromagnetic induction activation module is activated first, while for insulating and composite materials, the radio frequency activation module is activated first.

[0017] Specifically, in step S4, the activation key adopts a dynamic update mechanism, and the update cycle is synchronized with the tool verification cycle. In step S7, the platform automatically issues an alert when the verification activation success rate is lower than 95%.

[0018] The beneficial effects of this invention are: Dual enhancements in adaptability and fixation stability: Utilizing a multimodal activation and dynamic impedance matching design, it can flexibly adapt to safety tools made of different materials such as metals, insulation, and composite materials. There is no need to design separate activation schemes for a single material, and the activation process is stable and reliable. The self-healing TPU composite co-embedded structure, combined with a new type of anti-detachment adhesive, achieves a tight fit between the label and the tool, effectively avoiding detachment problems caused by changes in environmental temperature and humidity, wear and tear, and vibration. At the same time, the self-healing material can cope with minor damage, extending the label's service life and reducing maintenance and replacement costs.

[0019] Data security and traceability capabilities are significantly enhanced: By using a dual-chip architecture of identification chip and security chip, combined with the SHA-256 encryption algorithm, the encrypted transmission of activation data and tool identity information is achieved, preventing data from being tampered with or forged; the blockchain traceability platform adopts a consortium blockchain architecture, integrating consensus verification from multiple nodes such as manufacturers, users, and regulatory departments, ensuring that the information of tools is traceable throughout their entire life cycle, providing a reliable basis for safety responsibility determination, and solving the problems of information silos and unreliable data in traditional management.

[0020] Comprehensive optimization of anti-interference and compatibility: The interference suppression module allocates activation channels through time division multiple access technology, effectively avoiding signal conflicts when multiple tools are stored together, ensuring accurate activation; the dual-mode communication module is compatible with mainstream communication protocols, eliminating the need for multiple activation terminals, adapting to different needs of remote data synchronization and close-range rapid reading on construction sites, reducing usage costs and improving management efficiency.

[0021] The early warning system is accurate, efficient, and highly adaptable to various scenarios: The hierarchical early warning module integrates multiple warning methods such as light, sound and light, and vibration. It provides targeted reminders based on different states of tools and equipment, such as nearing or exceeding their expiration date, and abnormal environments. It can effectively transmit early warning information in complex scenarios such as high-altitude operations and noisy environments, avoiding the risk of exceeding the expiration date due to the ease of ignoring a single warning method, and providing dual protection for operational safety.

[0022] The system offers outstanding long-term stability and ease of maintenance: The dynamic impedance matching self-calibration module can adapt to changes in tag impedance caused by environmental factors and wear and tear in real time, eliminating the need for frequent manual adjustments and ensuring stable activation performance during long-term use; the tag installation process is simple and convenient, the adhesive is easy to peel off and replace without damaging the surface of tools, the periodic calibration process is highly automated, and the platform can automatically warn of abnormal states, significantly reducing the workload of maintenance. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 An architecture diagram of a co-embedded activation system for intelligent safety tool tags provided by the present invention; Figure 2 The flowchart illustrates a method for co-embedding and activating tags for intelligent safety tools provided by this invention. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] like Figure 1 As shown, the co-embedded activation system for intelligent safety tool tags of the present invention includes a co-embedded tag unit, a multimodal activation terminal, a hierarchical early warning module, a dual-mode communication module, an edge computing gateway, and a blockchain traceability platform. The various parts work together to achieve stable tag activation, anti-fall-off protection, accurate early warning, and secure data traceability.

[0027] Embedded Tag Unit: The core identification and storage component, employing a dual-chip architecture of an identification chip and a security chip to ensure separation of data storage and security authentication. The identification chip uses a high-performance RFID chip to store identification information such as tool model, production batch number, and verification date; the security chip has a built-in encryption algorithm and a dynamically updated activation key (256 bits) responsible for verifying the legitimacy of the activation signal and encrypting the data. The tag's co-embedded structure is a composite structure consisting of a metal substrate adapter layer, a self-healing TPU insulating encapsulation layer, and an elastic fastener. The metal substrate adapter layer is made of nickel-chromium alloy with a thickness of 0.3-0.5mm. It can be pre-bent according to the surface shape of the tool (bending radius ≥5mm) to ensure a good fit. The self-healing TPU insulating encapsulation layer is composed of TPU particles (80%~87%), polycaprolactone microcapsules (5%~8%), and multi-component modifiers (3%~5%). After the microcapsules rupture, they release the repair agent, achieving a self-healing efficiency of ≥85% in 24 hours. It has a temperature resistance range of -40℃ to 120℃ and a damp heat aging resistance of ≥500 hours. The elastic fastener is a silicone rubber buffer pad with a pre-tightening pressure of 0.8-1.2MPa. Combined with a new type of anti-detachment adhesive (epoxy resin-based composite material with 5%~8% nano silica and 2%~3% silane coupling agent), the bonding strength is ≥2.5MPa, it is easy to peel off and does not damage the surface of tools and equipment, completely solving the problem of label detachment.

[0028] Multimodal activation terminal: Responsible for tag activation triggering and signal adaptation, integrating an RF activation module, an electromagnetic induction activation module, an optical triggering module, a dynamic impedance matching self-calibration module, and an interference suppression module. The RF activation module outputs a 13.56MHz ± 5% RF signal (power 1-3W), compatible with insulating and composite materials; the electromagnetic induction activation module outputs a 50Hz-1kHz alternating magnetic field (magnetic field strength 0.5-1.5mT), compatible with metallic materials; the optical triggering module uses laser positioning to locate the tag (power ≤5mW, positioning accuracy ±0.5mm), reducing energy loss. The dynamic impedance matching self-calibration module includes an impedance detection unit (AD8302 chip, accuracy ±0.1Ω), a signal adjustment unit (AD5293 digital potentiometer), and a microcontroller, which collects the tag's equivalent impedance in real time and adjusts the excitation signal parameters to ensure impedance matching ≥90%. The interference suppression module uses time-division multiple access technology with a channel spacing ≥1MHz to avoid signal conflicts between multiple tags.

[0029] Tiered early warning module: Electrically connected to the embedded tag unit, integrating red, yellow, and blue LED light components, an audible and visual alarm (volume ≥85dB), and a vibrator (frequency 50Hz-100Hz) to achieve three-level early warning: Level 1 Warning (Approaching Expiry): Yellow LED remains constantly lit, with no sound, light, or vibration. Level 2 warning (overdue): Red LED flashes (once every 30 seconds) plus intermittent audible and visual alarm; Level 3 warning (abnormal environment / activation failure) features a flashing blue LED (once every 10 seconds) and continuous vibration, adapting to different work scenarios and reminder needs.

[0030] Dual-mode communication module: Supports dual-mode communication of Bluetooth Low Energy (BLE5.0, communication distance ≥10m) and NFC (communication distance ≤10cm), compatible with ISO 15693, ISO 14443 and NFC-Forum protocols, enabling local fast reading and remote data synchronization, adapting to different communication needs on construction sites.

[0031] Edge computing gateway: The intermediate node for data transmission and processing, using Huawei AR502H, which has a built-in cross-protocol conversion unit and SHA-256 data encryption module. The cross-protocol conversion unit automatically identifies the tag communication protocol and converts it to TCP / IP format, enabling unified management of tags from multiple manufacturers; the data encryption module encrypts tool identification information, activation time, and device identification information, generating 32-byte associated ciphertext to prevent tampering and leakage, with encryption time ≤50ms.

[0032] The blockchain traceability platform adopts a consortium blockchain architecture, with nodes including manufacturers, users, and regulatory nodes, and verifies consensus through a Byzantine fault-tolerant algorithm. The platform includes modules for data reception, storage, and querying. It receives encrypted data, decrypts and verifies it, and associates and stores activation data, the entire lifecycle information of tools and equipment (production, verification, use, and disposal) with a unique traceability identifier (20-byte hash value). The query response time is ≤500ms, achieving full-process traceability.

[0033] like Figure 2 As shown, based on the above-described co-embedded activation system, the co-embedded activation method for the smart safety tool tag of the present invention includes the following steps: S1: Co-embedded label installation. Determine the preset installation position based on the material and structure of the tool (select the insulating sheath area for metal tools, and the flat area for insulated tools). Tightly adhere the metal base adapter layer of the co-embedded label unit to the surface of the tool, apply a 0.1-0.2mm thick new anti-detachment adhesive, and press and position it using the pre-tightening force of the elastic fastener. Allow it to stand for 24 hours to cure. After installation, the tensile test should be ≥50N to ensure no relative displacement. The metal base adapter layer of curved tools should be pre-bent to avoid material fatigue fracture.

[0034] S2: Multimodal activation terminal start-up and material identification. The operator holds the terminal and aligns it with the preset installation position. After starting the device, the material detection module emits a signal through eddy current detection technology (frequency 1MHz-5MHz) to distinguish between metals and insulating / composite materials based on reflection characteristics, with an identification time of ≤50ms. The optical trigger module emits a laser to locate the center of the tag (deviation ≤0.5mm) and automatically selects the activation mode: the electromagnetic induction activation module is activated for metal materials, and the radio frequency activation module is activated for insulating / composite materials.

[0035] S3: Dynamic Impedance Matching Calibration. The dynamic impedance matching self-calibration module acquires the equivalent impedance value of the tag in real time. The microcontroller compares the detected value with a preset threshold (50-150Ω). If the matching degree is less than 90%, the excitation signal parameters are adjusted via a digital potentiometer (RF mode: frequency step 0.1MHz, amplitude step 0.1W; electromagnetic induction mode: frequency step 10Hz, magnetic field strength step 0.05mT). The calibration time is ≤100ms, ensuring effective coupling of the activation signal.

[0036] S4: Tag Activation and Authentication. After receiving the activation signal, the embedded tag unit extracts the key and compares it with the built-in dynamic key for verification. If the verification is successful, it sends an activation command to the identification chip. The identification chip outputs the tool's identity information (JSON format, including a unique identifier, production batch number, verification date, etc.), with a data transmission rate ≥106kbps. The key is automatically updated after activation, and the update cycle is synchronized with the tool's verification cycle (6 months) to reduce the risk of leakage.

[0037] S5: Data Encryption and Dual-Mode Upload. The edge computing gateway receives identity information via the radio frequency interface, converts it to TCP / IP format via the cross-protocol conversion unit, and the data encryption module uses the SHA-256 algorithm to encrypt and generate associated ciphertext, which is then uploaded to the blockchain traceability platform via Bluetooth Low Energy (remote) or NFC (short-range), with a transmission latency of ≤300ms.

[0038] S6: Blockchain-based Evidence Storage and Traceability. After the platform's receiving module verifies the integrity of the encrypted data, it decrypts it. The evidence storage module associates the data with the full lifecycle information to generate a unique traceability identifier. Each node completes consensus verification (time ≤ 1 second). Users can query information using keywords such as traceability identifier and tool number to achieve full-process traceability.

[0039] S7: Periodic activation and verification. Repeat steps S2-S5 every 6 months to collect data such as activation success rate, response time, and impedance matching degree, and upload the updated certificate information to the platform. If the activation success rate is lower than 95% or the response time exceeds 300ms, the platform will initiate a level 3 warning, prompting the label to be maintained or replaced to ensure long-term stability.

[0040] Example 1: Activation and application of metal safety tools (high-voltage grounding wire) System Configuration Co-embedded tag unit: The identification chip is NXP ICODE SLIX2 (supporting ISO 15693 protocol), and the security chip is AT88SC0104C; the metal substrate adapter layer of the co-embedded structure is nickel-chromium alloy (thickness 0.4mm), with a pre-bending radius of 10mm (to adapt to the curved surface of the high-voltage grounding wire metal connector); the self-healing TPU insulating encapsulation layer is 1.2mm thick; the elastic fastener has a pre-tightening pressure of 1.0MPa; and the new anti-detachment adhesive coating is 0.15mm thick.

[0041] Multimodal activation terminal: RF activation module outputs 13.56MHz signal (2W power), electromagnetic induction activation module outputs 500Hz alternating magnetic field (magnetic field strength 1.0mT); optical trigger module laser power 3mW, positioning accuracy ±0.3mm; dynamic impedance matching self-calibration module uses AD8302 chip and AD5293 digital potentiometer; interference suppression module channel spacing 1.5MHz.

[0042] Tiered early warning module: LED light components are embedded in the side of the label encapsulation layer, an audible and visual alarm is installed at the top of the terminal, and a vibrator is embedded in the bottom of the label.

[0043] Dual-mode communication module: Supports BLE5.0 and NFC dual-mode, with a BLE communication distance of 15m and an NFC communication distance of 8cm.

[0044] Edge computing gateway: Huawei AR502H, supports 5G communication, cross-protocol conversion unit is compatible with ISO15693 protocol, and data encryption module adopts SHA-256 algorithm.

[0045] Blockchain traceability platform: The consortium blockchain nodes include manufacturers of electrical tools, power supply companies, and power regulatory departments. The stored evidence data includes the high-voltage grounding wire model (JDX-10kV), production batch number (202401001), verification date (2024-01-15), etc.

[0046] Activation process S1: Tag Installation. The metal connector of the high-voltage grounding wire is wrapped with an insulating sheath. The metal base adapter layer of the embedded tag unit is attached to the flat area of ​​the sheath, and a new type of anti-detachment adhesive is applied. The tag is then pressed and positioned by the pre-tightening force of the silicone rubber buffer pad. After standing for 24 hours to cure, a tensile test (tensile force 55N) is performed. The tag does not loosen.

[0047] S2: Material Recognition and Activation Mode Selection. The operator holds the multimodal activation terminal and aligns it with the label. After starting the device, the material detection module emits a 3MHz eddy current signal, detects the metal joint under the insulating sheath, and determines it to be a metal material (takes 35ms); the optical trigger module emits a laser to locate the center of the label, and activates the electromagnetic induction activation module, outputting a 500Hz alternating magnetic field.

[0048] S3: Dynamic impedance matching calibration. The impedance detection unit acquires the equivalent impedance value of the tag at 85Ω, with a matching degree of 92%, requiring no parameter adjustment; subsequently, due to vibration, the tag becomes loose, and the impedance value changes to 160Ω, reducing the matching degree to 88%. The microcontroller adjusts the magnetic field strength to 1.1mT, improving the matching degree to 93%, with calibration taking 80ms.

[0049] S4: Tag Activation and Authentication. The security chip extracts the activation signal key, compares and verifies it with the built-in 256-bit dynamic key, and sends an activation command to the identification chip. The identification chip outputs identity information: {"Unique Identifier":"A1B2C3D4E5F6G7H8","Production Batch Number":"202401001","Verification Date":"20240115","Model":"JDX-10kV"}, with a response time of 120ms. The key is automatically updated after activation.

[0050] S5: Data Encryption and Dual-Mode Upload. After receiving the identity information, the edge computing gateway converts the ISO15693 protocol data into TCP / IP format using the cross-protocol conversion unit. The data encryption module encrypts the identity information, activation time (2024-02-20 14:30:25.123), and gateway device number (HW-AR502H-2024001), generating 32 bytes of ciphertext (taking 30ms), which is then uploaded to the blockchain platform via 5G communication with a transmission latency of 220ms.

[0051] S6: Blockchain Evidence Storage and Traceability. After verifying the integrity of the encrypted data, the platform decrypts and stores the evidence, generating a traceability identifier (hash value: 7E2F9D3A8B4C6E105H7J9K2L4M6N8P0Q1R3S5T7U). The consensus verification time for each node is 0.8s. Users can query the full lifecycle information of the high-voltage grounding wire through the traceability identifier, with a query response time of 350ms.

[0052] S7: Periodic verification. Activation verification is performed after 6 months, with a 99% activation success rate, a response time of 130ms, an impedance matching degree of 94%, and data is uploaded to the platform to update the certificate information without any warning prompts. After 1 year, due to slight wear on the tag, the activation success rate drops to 96%, the platform initiates a level 1 warning, and returns to normal after maintenance is requested.

[0053] Test Results Activation success rate of 99.2%, response time of 120-150ms, impedance matching degree of 92%-94%, false positive rate of 0.5% for multiple tags (10 activated simultaneously), tag detachment rate of 0%, activation success rate of ≥97% in high and low temperature environments (-20℃~70℃); there is no risk of tampering after data encryption, and the traceability information is complete and verifiable, meeting the safety management requirements of the power industry.

[0054] Example 2: Activation and application of safety tools made of insulating materials (insulated operating rods) System Configuration Co-embedded tag unit: The identification chip is NXP MIFARE Classic EV1 (supporting ISO 14443 protocol), and the security chip is AT88SC0104C; the metal substrate adapter layer of the co-embedded structure is nickel-chromium alloy (thickness 0.3mm), and the self-healing TPU insulating encapsulation layer is 1.0mm thick; the elastic fastener has a pre-tightening pressure of 0.8MPa; and the new anti-detachment adhesive coating is 0.1mm thick.

[0055] Multimodal activation terminal: The radio frequency activation module outputs a 13.56MHz±2% signal (power 1.5W), and the electromagnetic induction activation module outputs a 1kHz alternating magnetic field (magnetic field strength 0.8mT); the optical trigger module has a laser power of 2mW and a positioning accuracy of ±0.5mm; the parameters of the dynamic impedance matching self-calibration module are the same as in Example 1.

[0056] Tiered warning module: LED light components are installed on the front of the label, the sound and light alarm volume is 90dB, and the vibrator frequency is 80Hz.

[0057] Dual-mode communication module: BLE communication distance 12m, NFC communication distance 10cm, compatible with ISO 14443 protocol.

[0058] Edge computing gateway: Huawei AR502H, supports Wi-Fi / wired communication, and the cross-protocol conversion unit is compatible with ISO14443 protocol.

[0059] Blockchain traceability platform: The consortium blockchain nodes include manufacturers of insulating tools, construction companies that use the tools, and safety production supervision departments. The stored evidence data includes the model of the insulating operating rod (JG-12kV), production batch number (202402005), verification date (2024-02-10), etc.

[0060] Activation process S1: Label Installation. The insulating operating rod is made of epoxy resin with a smooth surface. The metal base adapter layer of the co-embedded label unit is attached to the preset installation position in the middle of the operating rod, a new type of anti-detachment adhesive is applied, and it is pressed and positioned by elastic fasteners. After standing for 24 hours to cure, a vibration test is performed (frequency 50Hz, lasting 30 minutes). The label does not loosen.

[0061] S2: Material Recognition and Activation Mode Selection. The operator holds the handheld terminal and aligns it with the tag. The material detection module emits a 2MHz eddy current signal. No metal reflection signal is detected, and the material is determined to be insulating (recognition time 40ms). The optical trigger module locates the center of the tag and activates the radio frequency activation module, outputting a 13.56MHz signal (power 1.5W).

[0062] S3: Dynamic impedance matching calibration. The impedance detection unit acquires the tag's equivalent impedance of 120Ω, with a matching degree of 93%, requiring no adjustment. When the temperature at the construction site rises to 60℃, the tag's equivalent impedance becomes 140Ω, and the matching degree drops to 88%. The microcontroller adjusts the RF signal power to 1.8W and fine-tunes the frequency to 13.6MHz. After calibration, the matching degree is 92%, taking 90ms.

[0063] S4: Tag Activation and Authentication. The security chip verifies the key and outputs the following identity information: {"Unique Identifier":"C3D4E5F6G7H8A1B2","Production Batch Number":"202402005","Verification Date":"20240210","Model":"JG-12kV"}, with a response time of 110ms; the key is automatically updated after activation.

[0064] S5: Data Encryption and Dual-Mode Upload. After receiving data, the edge computing gateway converts the ISO14443 protocol to TCP / IP format using the cross-protocol conversion unit. The data encryption module encrypts the identity information, activation time (2024-03-15 09:45:12.345), and gateway device number (HW-AR502H-2024008), generating ciphertext (taking 25ms). This ciphertext is then uploaded to the blockchain platform via Wi-Fi with a transmission latency of 180ms.

[0065] S6: Blockchain Evidence Storage and Traceability. After verifying the encrypted text, the platform decrypts and stores the evidence, generating a traceability identifier (hash value: 8F3G9E4B7A5D6C201J8K3L5M7N9P1Q2R4S6T8U). Consensus verification by each node takes 0.7 seconds. Regulatory authorities can query production, verification, and usage records through the traceability identifier, with a query response time of 400ms.

[0066] S7: Periodic verification. Verification after 6 months shows an activation success rate of 98.8%, a response time of 120ms, and an impedance matching degree of 91%. After 18 months, if the label encapsulation layer is slightly damaged, the self-healing TPU material will complete the repair within 24 hours, with an activation success rate of 97.5%, no platform warnings, and the label status is normal.

[0067] Test Results Activation success rate of 98.8%, response time of 110-130ms, impedance matching degree of 91%-93%, false positive rate of multiple tags (8 tags activated simultaneously) of 0.8%, tag detachment rate of 0%, and resistance to damp heat aging performance of 600h; data encryption is secure and reliable, traceability information is complete, and it meets the safety management needs of the construction industry.

[0068] Example 3: Activation and application of composite material safety equipment (safety helmet) System Configuration Co-embedded tag unit: The identification chip uses an NFC Forum Type 2 tag chip (supporting the NFC-Forum protocol), and the security chip uses an AT88SC0104C; the metal substrate adapter layer of the co-embedded structure is a nickel-chromium alloy (thickness 0.5mm) with a pre-bending radius of 8mm; the self-healing TPU insulating encapsulation layer is 1.5mm thick (enhancing impact resistance); the elastic fastener has a pre-tightening pressure of 1.2MPa; and the new anti-detachment adhesive coating is 0.2mm thick.

[0069] Multimodal activation terminal: The radio frequency activation module outputs a 13.56MHz±3% signal (power 2.5W), and the electromagnetic induction activation module outputs a 200Hz alternating magnetic field (magnetic field strength 1.2mT); the optical trigger module has a laser power of 4mW and a positioning accuracy of ±0.4mm; the parameters of the dynamic impedance matching self-calibration module are the same as those in the aforementioned embodiment.

[0070] Tiered warning module: LED light assembly is installed on the top of the label, the sound and light alarm volume is 95dB, and the vibrator frequency is 100Hz.

[0071] Dual-mode communication module: BLE communication distance 18m, NFC communication distance 9cm, compatible with NFC-Forum protocol.

[0072] Edge computing gateway: Huawei AR502H, supports 4G / Wi-Fi communication, and the cross-protocol conversion unit is compatible with the NFC-Forum protocol.

[0073] Blockchain traceability platform: The consortium blockchain nodes include safety helmet manufacturers, chemical enterprises, and emergency management departments. The stored evidence data includes safety helmet model (AH-2024), production batch number (202403012), verification date (2024-03-05), etc.

[0074] Activation process S1: Label Installation. The safety helmet is made of fiberglass composite material with an arc-shaped surface. The metal base adapter layer of the embedded label unit is pre-bent to a radius of 8mm and attached to the preset installation position on the top of the safety helmet. A new type of anti-detachment adhesive is applied, and the helmet is pressed and positioned by elastic fasteners. After standing for 24 hours to cure, an impact resistance test is conducted (impact energy 5J, impact height 1m). The label is undamaged and does not loosen, meeting the safety requirements for the use of the safety helmet.

[0075] S2: Material identification and activation mode selection. The operator holds the handheld terminal and aligns it with the label on the top of the safety helmet. After starting the device, the material detection module emits a 4MHz eddy current signal. The glass fiber composite material has no obvious metallic reflection characteristics and is determined to be a semi-insulating material (identification time 45ms). The optical trigger module locates the center of the label (deviation ≤0.4mm), activates the radio frequency activation module, and outputs a 13.56MHz±3% signal (power 2.5W).

[0076] S3: Dynamic impedance matching calibration. The impedance detection unit acquires the equivalent impedance of the label at 105Ω, with a matching degree of 95%, requiring no initial adjustment; after long-term use, the surface of the safety helmet becomes contaminated with oil, and the equivalent impedance of the label changes to 45Ω, reducing the matching degree to 85%. The microcontroller fine-tunes the RF signal frequency to 13.4MHz and the power to 2.2W. After calibration, the matching degree is 92%, taking 95ms.

[0077] S4: Tag Activation and Authentication. The security chip extracts the key and compares it with the built-in dynamic key. After successful verification, the key is automatically updated upon activation (takes 20ms). The identification chip outputs the following identity information: {"Unique Identifier":"E5F6G7H8A1B2C3D4","Production Batch Number":"202403012","Verification Date":"20240305","Model":"AH-2024","Service Life":"3 years"}, with a response time of 130ms.

[0078] S5: Data Encryption and Dual-Mode Upload. The edge computing gateway receives identity information via the NFC interface, and the cross-protocol conversion unit identifies the NFC-Forum protocol and converts it to TCP / IP format. The data encryption module encrypts the identity information, activation time (2024-04-10 11:20:36.789), and gateway device number (HW-AR502H-2024015), generates ciphertext (taking 35ms), and uploads it to the blockchain platform via 4G communication with a transmission latency of 280ms and no packet loss.

[0079] S6: Blockchain Evidence Storage and Traceability. The platform receiving module verifies the integrity of the encrypted data by comparing hash values ​​and obtains the original data after decryption. The evidence storage module associates the activated data with the full lifecycle information of the safety helmet (manufacturer: XX Protective Equipment Co., Ltd., manufacturing date: 2024-03-10, user: XX Chemical Group) to generate a traceability identifier (hash value: 9G4H8J2K6L1M3N5P7Q9R2S4T6U8V0W2X4Y6Z8A0B). The consensus verification of each node takes 0.9 seconds. The user can query the status of the safety helmet through the traceability identifier, with a query response time of 450ms.

[0080] S7: Periodic verification. After 6 months, the safety helmet showed slight wear on the label surface due to repeated wear and friction. After adjusting the parameters of the dynamic impedance matching self-calibration module, the activation success rate was 98.5%, the response time was 140ms, and the impedance matching degree was 91%. Two years later, the label was slightly damaged due to an accidental collision. The self-healing TPU material repaired it within 48 hours, and the activation success rate was 96.8%. The platform initiated a level 1 warning and returned to normal after maintenance.

[0081] Test Results With an activation success rate of 98.5%, a response time of 130-150ms, an impedance matching degree of 91%-95%, and a false positive rate of 0.6% for multiple tags (15 activated simultaneously); a tag detachment rate of 0%, excellent resistance to high and low temperatures (-20℃~70℃) and impact resistance; data encryption with no risk of tampering, and continuous traceability information via blockchain, it fully meets the stringent management requirements of the chemical industry for safety tools and equipment.

[0082] Comparative Examples: To verify the technical effect of the present invention, three sets of comparative examples were set up. The existing technical solutions were used to compare the core performance indicators of the present invention with those of Examples 1-3. The test conditions were the same laboratory environment (temperature 25℃, humidity 50%), and the test samples were 100 corresponding tools.

[0083] Compare with Example 1: Single RF activation method (no co-embedded structure, no dynamic calibration, no encrypted traceability) It uses a conventional radio frequency activation terminal (only 13.56MHz signal), adhesive RFID tags (no security chip), transmits data in plaintext, and has no early warning module or blockchain platform.

[0084] Conclusion: Single activation method has poor adaptability, metal material activation success rate is extremely low, tag detachment rate is high, there is no data security and traceability capability, and it cannot meet actual needs.

[0085] Compare with Example 2: Multimodal activation (no anti-dropout design, no graded early warning, no dual-mode communication) It uses the same multimodal activation terminal and dual-chip tag as the present invention, without self-healing TPU, novel adhesive, graded early warning module and dual-mode communication, and the data is uploaded to a general cloud platform after encryption.

[0086] Conclusion: Although the compatibility issue has been resolved, the tag detachment rate is high, there are no accurate early warnings or dual-mode communication, data traceability is unreliable, and the core needs of security management cannot be met.

[0087] Comparison with Example 3: Multimodal activation + encrypted traceability (no dynamic impedance matching, no self-healing or adhesive) It uses the same multimodal activation terminal, dual-chip tag, encryption module and blockchain platform as the present invention, but without dynamic impedance matching self-calibration module, self-healing TPU and new anti-detachment adhesive.

[0088] Conclusion: Data security and traceability meet the requirements, but the lack of dynamic calibration and anti-drop design makes the activation success rate and stability significantly affected by the environment and wear, and it cannot adapt to complex construction sites.

[0089] Comparison and summary This invention solves the label detachment problem by using self-healing TPU and a novel adhesive, addresses compatibility issues by employing multimodal activation and dynamic impedance matching, improves alert accuracy by using tiered early warning, resolves compatibility issues by using dual-mode communication, and addresses data security and traceability issues by using dual-chip encryption and blockchain. Its core indicators are significantly superior to existing technologies, creatively overcoming many shortcomings of existing technologies and possessing outstanding practical value and technological advantages.

[0090] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A co-embedding activation system of intelligent safety tool tag, characterized in that, The system comprises a co-embedded tag unit, a multi-modal activation terminal, an edge computing gateway and a blockchain traceability platform. The co-embedded tag unit adopts a dual-chip architecture of an identification chip and a security chip, is fixed to a preset installation position of a safety tool through a self-repairing TPU composite co-embedded structure, and comprises a metal base adaptation layer, a self-repairing TPU insulation packaging layer and an elastic fixing part. The identification chip stores tool identity information, and the security chip stores an activation key and an encryption algorithm. The multi-modal activation terminal integrates a radio frequency activation module outputting a 13.56 MHz ± 5% radio frequency signal, an electromagnetic induction activation module outputting a 50 Hz-1 kHz alternating magnetic field, an optical trigger module and a dynamic impedance matching self-calibration module. The dynamic impedance matching self-calibration module detects the equivalent impedance of the tag in real time and adjusts the excitation signal parameters. The edge computing gateway communicates with the multi-modal activation terminal and the blockchain traceability platform, and is internally provided with a cross-protocol conversion unit and a SHA-256 data encryption module. The blockchain traceability platform comprises data receiving, storage and query modules, and adopts a consortium chain architecture to store activation data and full life cycle information. The system further comprises a hierarchical early warning module integrated with LED lights, an audible and visual alarm and a vibrator, and a new anti-falling adhesive made of an epoxy resin-based composite material and having a bonding strength of ≥2.5 MPa. The communication module supports low-power Bluetooth and NFC dual-mode communication.

2. The co-embedding activation system of an intelligent safety tool tag according to claim 1, characterized in that: The self-repairing TPU insulation packaging layer is composed of TPU particles, polycaprolactone microcapsules and multi-component modifiers. The mass fraction of the polycaprolactone microcapsules is 5%-8%, the self-repairing efficiency is ≥85%, and the temperature resistance range is -40℃-120℃.

3. The co-embedding activation system of an intelligent safety tool tag according to claim 1, characterized in that: The new anti-falling adhesive is added with nano-silicon dioxide and a silane coupling agent, has a moisture and heat aging resistance of ≥500 h, is easy to peel off and replace, and does not damage the surface of the tool.

4. The co-embedding activation system of an intelligent safety tool tag according to claim 1, characterized in that: The hierarchical early warning module realizes three-level early warning according to test periods and environmental parameters: a yellow LED is always on for the first-level early warning of the expiration period; a red LED flashes and an intermittent audible and visual alarm is added for the second-level early warning of the overage; and a blue LED flashes and a continuous vibration is added for the third-level early warning of the environmental anomaly.

5. The co-embedding activation system of an intelligent safety tool tag according to claim 1, characterized in that: The dynamic impedance matching self-calibration module comprises an impedance detection unit, a signal adjustment unit and a microcontroller. The frequency and amplitude of the excitation signal are adjusted through a digital potentiometer, so that the impedance matching degree is ≥90%.

6. The co-embedding activation system of a smart safety tool tag according to claim 1, wherein: The consortium chain nodes of the blockchain traceability platform include production manufacturers, use units and supervision nodes, and adopt a Byzantine fault tolerance algorithm consensus verification. The data storage time is ≥5 years.

7. The co-embedding activation system of an intelligent safety tool tag according to claim 1, wherein: The low-power Bluetooth communication distance of the communication module is ≥10 m, and the NFC communication distance is ≤10 cm. The communication module is compatible with ISO 15693, ISO 14443 and NFC-Forum protocols.

8. A co-embedding activation method of a smart safety tool tag, the method is implemented using the co-embedding activation system of the smart safety tool tag according to any one of claims 1-7, characterized in that, The system comprises the following steps: S1: The co-embedded tag unit is fixed to the preset installation position of the tool through the self-repairing TPU composite co-embedded structure, and the new anti-falling adhesive is compressed and positioned to ensure no relative displacement; S2: The multi-modal activation terminal positions the tag through the optical trigger module, and the material detection module identifies the material of the tool and selects the corresponding activation mode. S3: Dynamic impedance matching self-calibration module adjusts the excitation signal parameters in real time, so that the impedance matching degree is greater than or equal to 90%; S4: After the co-embedded label unit is activated, the security chip verifies the legality of the key and identifies the chip to output identity information; S5: The edge computing gateway encrypts the data and uploads it to the blockchain traceability platform through dual-mode communication; S6: The blockchain traceability platform stores the data and generates a unique traceability identifier; S7: Regular activation verification, update of stored information and realization of hierarchical early warning.

9. The co-embedding activation method of an intelligent safety tool tag according to claim 8, characterized in that: In step S2, material identification is performed using eddy current detection technology, and the identification time is less than or equal to 50 ms. Metal materials preferentially start the electromagnetic induction activation module, and insulating and composite materials preferentially start the radio frequency activation module.

10. The co-embedding activation method of an intelligent safety tool tag according to claim 8, characterized in that: In step S4, the activation key uses a dynamic update mechanism, and the update period is synchronized with the tool verification period. In step S7, when the verification activation success rate is less than 95%, the platform automatically warns.

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