Nuclear power plant intelligent isolation system and method based on RFID and digital regulation linkage
By using RFID tags and smart isolation signs in nuclear power plants, combined with a digital procedure management platform, the problems of automation and real-time sensing of isolation operations in nuclear power plants have been solved. This has enabled the accurate issuance of isolation commands and real-time feedback of status, thereby improving safety and operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA NUCLEAR POWER OPERATION TECH CORP
- Filing Date
- 2025-12-10
- Publication Date
- 2026-04-28
AI Technical Summary
In nuclear power plants, existing isolation operations rely on manual management, which is inefficient, error-prone, creates information silos, and is difficult to verify, making it impossible to achieve automation and real-time sensing.
By using RFID tags and smart isolation signs, combined with a digital procedure management platform, automatic identification of equipment, real-time status monitoring, and automatic operation verification are achieved, forming a closed-loop management system.
It enables precise issuance of isolation commands, real-time status feedback, and prevention of misoperation, thereby improving the safety and operational efficiency of nuclear power plants and forming a digital twin closed loop.
Smart Images
Figure CN121936485A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of nuclear power technology, specifically relating to a smart isolation system and method for nuclear power plants based on the linkage of RFID and digital procedures. Background Technology
[0002] In nuclear power plants, isolated operations are a core element in ensuring the safety of equipment, personnel, and maintenance. Current mainstream methods have significant shortcomings:
[0003] 1) Paper isolation tickets: Relying on manual writing, approval and execution, they are inefficient and prone to copying errors or omissions.
[0004] 2) Traditional isolation signs / locks: They serve only as physical warnings, cannot record information such as the person who attached them or the time, and cannot verify whether they are consistent with the current valid isolation instructions. They are easily removed by mistake or forgotten to be removed.
[0005] 3) Information silos: The isolation management system (such as eSOMS) is completely disconnected from the physical isolation status on site. The control room cannot perceive the real-time status (already hung, already removed) of thousands of isolation points on site.
[0006] 4) Verification difficulties: Operators need to bring a large number of paper documents to the site and manually check whether the quarantine point code and quarantine ticket are consistent, which is time-consuming and prone to errors, and the risk of "going to the wrong interval" is high.
[0007] Existing digital solutions, such as those using QR codes, still require manual scanning and cannot achieve automatic sensing and verification. Furthermore, QR codes are easily damaged. Therefore, there is an urgent need for a new type of intelligent isolation technology that can automatically, accurately, and in real-time link digital commands with the physical world. Summary of the Invention
[0008] To overcome the problems existing in related technologies, a smart isolation system and method for nuclear power plants based on the linkage of RFID and digital procedures is provided.
[0009] According to one aspect of the present disclosure, a smart isolation system for nuclear power plants based on the linkage of RFID and digital procedures is provided. The system includes: a digital procedure management platform, multiple RFID tags, multiple smart isolation signs, and multiple mobile terminals.
[0010] An RFID tag is installed at the physical isolation point of each piece of equipment that needs to be isolated within the nuclear power plant. Each RFID tag has a unique RFID code and is associated with the equipment code and location information in the background database of the digital procedure management platform.
[0011] The smart isolation sign has a built-in active RFID module, status sensor, and microprocessor and memory.
[0012] Active RFID modules are used for identification and location by readers;
[0013] The status sensor is used to sense the posture information of the smart isolation sign and determine whether the smart isolation sign has been attached or removed based on the posture information. When the status sensor detects that the smart isolation sign has been attached, it sends an attachment prompt to the digital procedure management platform; when the status sensor detects that the smart isolation sign has been removed, it sends a removal prompt to the digital procedure management platform.
[0014] The microprocessor and memory are used to store the currently associated isolation instruction ID and isolation instruction information, as well as the status of the smart isolation board. The isolation instructions include: operator, planned operation time, and operation content.
[0015] The mobile smart terminal has a built-in RFID reader / writer, which is used to receive isolation tasks, scan and verify the RFID tags of field equipment, and read and write to the smart isolation sign in order to attach or remove the smart isolation sign.
[0016] In one possible implementation, the smart barrier also includes indicator lights and a buzzer to provide audible and visual alarms when an alarm is triggered.
[0017] In one possible implementation, the smart isolation sign also includes: a display screen for displaying device information and isolation instructions for the isolation tasks to be performed; and a power supply module including a rechargeable battery for supplying power to the smart isolation sign.
[0018] In one possible implementation, the smart isolation sign also includes a power supply module for supplying power to the smart isolation sign.
[0019] According to embodiments of this disclosure, a method for intelligent isolation in nuclear power plants based on the linkage of RFID and digital procedures is provided, the method comprising:
[0020] Step 1, Generation and issuance of isolation commands:
[0021] The digital procedure management platform creates isolation tasks based on work orders and generates structured isolation instructions corresponding to the isolation tasks. The isolation instructions include: instruction ID, risk level, target device RFID code list, device information corresponding to each target device RFID code, and isolation measures.
[0022] The digital procedure management platform pushes the isolation task to the approval stage, and after the isolation task is approved, it sends the isolation instructions and isolation command to the mobile terminal held by the operator performing the isolation task.
[0023] Step 2, On-site execution and automatic verification:
[0024] After scanning the passive RFID tag on the target device, the mobile terminal reads the field device ID and determines whether the field device ID exists in the target device RFID code list. If the field device ID exists in the target device RFID code list, the verification is successful. The mobile terminal displays the device information of the field device and the isolation measures to be performed according to the isolation instruction matched from the target device RFID code list, and prompts the user to attach a smart isolation tag.
[0025] After the mobile terminal writes the isolation command and operator and timestamp information to the smart isolation sign, the sign is successfully hung.
[0026] If the on-site device ID does not belong to the target device RFID code list, the mobile terminal will immediately issue an alarm, prompting the operator to go to the wrong interval and locking the isolation task for the next operation;
[0027] Step 3, Real-time Status Monitoring:
[0028] When it is necessary to lift the isolation task, the operator scans the device's RFID tag and smart isolation sign again using a mobile terminal, writes the lifting isolation command to the smart isolation sign, and after the smart isolation sign verifies that the lifting isolation command is correct, changes the current status from authorized mounting to authorized removal. After detecting the removal action, it sends a removal prompt to the mobile terminal and the digital procedure management platform. After receiving the removal prompt, the digital procedure management platform changes the status of the isolation task corresponding to the removal prompt from executing to executed, and displays the executor and time.
[0029] In one possible implementation, the method further includes: if the smart isolation sign detects a removal action and detects that no end isolation command has been written, it determines that the smart isolation sign has been mistakenly removed, and the smart isolation sign itself can issue an audible and visual alarm.
[0030] In one possible implementation, if the smart isolation sign is determined to have been mistakenly removed, it will also send an alarm notification to the digital procedure management platform. After receiving the alarm notification, the digital procedure management platform will display the alarm event, which includes the isolation task and location information corresponding to the mistakenly removed smart isolation sign.
[0031] In one possible implementation, the method further includes: after the isolation task release work order is closed, the digital procedure management platform automatically checks whether all smart isolation signs issued for the isolation task have sent removal prompts. If it detects that an associated smart isolation sign has not sent a removal prompt, it is determined that there is a missing one. The digital procedure management platform issues a high-level alarm containing the location information of the smart isolation sign, prompting relevant personnel to handle it on-site.
[0032] The beneficial effects of this disclosure are as follows: The intelligent isolation system for nuclear power plants based on the linkage of RFID and digital procedures provided in this disclosure can achieve the following functions by equipping each physical isolation point with an RFID tag with a unique identifier and equipping operators with mobile terminals integrated with RFID readers and writers:
[0033] Precise command delivery: Automatically delivers the list of target isolation points in the digital isolation command to the mobile terminal.
[0034] Automatic operation verification: On-site RFID automatically identifies and verifies the identity of the isolation point, preventing "going to the wrong isolation zone".
[0035] Real-time status feedback: The system automatically transmits information such as the status of the isolation sign being attached / removed, the operator, and the timestamp back to the system, forming a closed loop.
[0036] Physical anti-tampering: The smart isolation sign itself has state sensing capabilities and can trigger alarms in conjunction with the system. Attached Figure Description
[0037] Figure 1 This is a schematic diagram of a nuclear power plant intelligent isolation system based on the linkage of RFID and digital procedures, as shown in an embodiment of this disclosure.
[0038] Figure 2 This is a flowchart illustrating an intelligent isolation device for a nuclear power plant based on the linkage of RFID and digital procedures, as shown in an embodiment of this disclosure. Detailed Implementation
[0039] The present disclosure will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0040] Unless otherwise defined, the technical and scientific terms used in this disclosure have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains; the terminology used in this disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure; the term "comprising" and any variations thereof in this disclosure are intended to cover non-exclusive inclusion. Clearly, the embodiments described in this disclosure are only a part of the embodiments of this disclosure, and not all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.
[0041] In this disclosure, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this disclosure. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0042] Figure 1 This is a schematic diagram of a nuclear power plant intelligent isolation system based on the linkage of RFID and digital procedures, as shown in an embodiment of this disclosure. Figure 1 As shown, the system includes: a digital procedure management platform, multiple RFID tags, multiple smart isolation signs, and multiple mobile terminals.
[0043] Passive ultra-high frequency (UHF) RFID tags are installed at the physical isolation points of all equipment requiring isolation within the nuclear power plant (such as valves and switches). Each RFID tag contains a unique RFID code (ID) and is associated with the equipment code and location information in the backend database of the digital procedure management platform.
[0044] The smart barrier sign has a built-in active RFID module, status sensor, microprocessor, and memory. The active RFID module is used for identification and positioning by the reader. The status sensor (such as an accelerometer) is used to sense the attitude information of the smart barrier sign and determine whether the smart barrier sign has been attached or removed based on the attitude information. When the status sensor detects that the smart barrier sign has been attached, it sends an attachment prompt to the digital procedure management platform. When the status sensor detects that the smart barrier sign has been removed, it sends a removal prompt to the digital procedure management platform. The smart barrier sign can transmit the information to be sent to the digital procedure management platform via a nearby mobile terminal, or it can directly send the information to be sent to the digital procedure management platform.
[0045] The microprocessor and memory are used to store the currently associated isolation instruction ID and isolation instruction information, as well as the status of the smart isolation board. The isolation instructions include: operator, planned operation time, and operation content.
[0046] The mobile smart terminal has a built-in RFID reader / writer, which is used to receive isolation tasks, scan and verify the RFID tags of field equipment, and read and write to the smart isolation sign in order to attach or remove the smart isolation sign.
[0047] In one possible implementation, the smart isolation sign also includes: indicator lights and buzzers, a display screen and a power supply module; the indicator lights and buzzers are used to provide audible and visual alarms when an alarm is triggered (such as a green light for successful verification and a red light for an error alarm); the display screen is used to display device information and isolation instructions for the isolation tasks to be performed; the power supply module includes a rechargeable battery for supplying power to the smart isolation sign.
[0048] Figure 2 This is a flowchart illustrating an intelligent isolation device for nuclear power plants based on the linkage of RFID and digital procedures, as shown in the embodiments of this disclosure. Figure 2 As shown, the method includes:
[0049] Step 1, Generation and issuance of isolation commands:
[0050] The digital procedure management platform creates isolation tasks based on work orders and generates structured isolation instructions corresponding to the isolation tasks. The isolation instructions include: instruction ID, risk level, target equipment RFID code list, equipment information corresponding to each target equipment RFID code, and isolation measures (such as: power off, depressurization, tagging, and locking).
[0051] The digital procedure management platform pushes the isolation task to the approval stage, and after the isolation task is approved, it sends the isolation instructions and instructions to the mobile terminal held by the operator who performs the isolation task.
[0052] Step 2, On-site execution and automatic verification:
[0053] Upon arrival at the site, the operator uses a mobile terminal to scan the passive RFID tag on the target device. After reading the device ID, the mobile terminal checks if the ID exists in the target device's RFID code list. If it does, the verification is successful. Based on the isolation command matched from the target device's RFID code list, the mobile terminal displays the device information and the required isolation measures (e.g., "Device P-123A, Execute: Power Off, Tag"), and prompts the operator to attach the smart isolation tag. After the operator uses the mobile terminal to write the isolation command, operator information, and timestamp to the smart isolation tag, the indicator light on the tag illuminates green upon successful tag attachment.
[0054] If the on-site device ID does not belong to the target device RFID code list, the mobile terminal will immediately issue an audible and visual alarm to remind the operator to go to the wrong interval and lock the isolation task for the next operation to prevent misoperation.
[0055] Step 3, Real-time Status Monitoring:
[0056] After completing the isolation task, when it is necessary to release the isolation task, the operator needs to scan the device's RFID tag and smart isolation sign again using a mobile terminal and write a release command to the smart isolation sign. After verifying that the release command is correct, the smart isolation sign changes its current status from authorized mounting to authorized removal. Upon detecting the removal action, it sends a removal prompt to the mobile terminal and the digital procedure management platform. After receiving the removal prompt, the digital procedure management platform changes the status of the isolation task corresponding to the removal prompt from "in execution" to "executed," displays the executor and time, and forms a complete electronic isolation record.
[0057] In one possible implementation, the system disclosed herein has an anti-accidental removal alarm function. When the smart isolation sign detects a removal action, if it detects that no end-isolation command has been written, it determines that the smart isolation sign has been mistakenly removed. The smart isolation sign itself can issue an audible and visual alarm and send an alarm notification to the digital procedure management platform. Upon receiving the alarm notification, the digital procedure management platform displays the alarm event, which includes the isolation task and location information corresponding to the mistakenly removed smart isolation sign. This effectively prevents on-site personnel from removing isolation signs unrelated to the currently valid command and promptly alerts remote monitoring personnel, thereby forming a multi-faceted prevention and supervision mechanism for accidental removal operations.
[0058] In one possible implementation, the system disclosed herein has a legacy alarm function. After the isolation task release work order is closed, the digital procedure management platform automatically checks whether all smart isolation signs issued for the isolation task have sent removal prompts, thereby determining whether all smart isolation signs have been removed and recycled. If it detects that an associated smart isolation sign has not sent a removal prompt, it is determined that there is a legacy issue, and the digital procedure management platform issues a high-level alarm containing the location information of the smart isolation sign, prompting relevant personnel to handle it on-site.
[0059] This disclosure provides a system that equips each physical isolation point with a uniquely identified RFID tag and provides operators with mobile terminals integrated with RFID readers, ensuring absolute prevention of misoperation: RFID automatic identification and verification fundamentally eliminates the core risk of "going to the wrong isolation zone." Real-time transparency of status: A leap from "invisible" to "real-time visible" physical isolation status is achieved, allowing the control room to accurately monitor the isolation status of the entire plant, greatly improving safety. Significantly improved efficiency: The automation of information flow, verification, and recording processes reduces manual verification and documentation work, shortening isolation operation time. Formation of a digital twin closed loop: A strong correlation and bidirectional data flow are established between digital instructions and physical entities, achieving a true digital twin of isolation. Traceability capability: All operations are automatically and accurately recorded, providing irrefutable electronic evidence for incident investigations and compliance audits.
[0060] This disclosure can be a system, method, and / or computer program product. A computer program product may include a computer-readable storage medium having computer-readable program instructions loaded thereon for causing a processor to implement various aspects of this disclosure.
[0061] Computer-readable storage media can be tangible devices capable of holding and storing instructions for use by an instruction execution device. Computer-readable storage media can be, for example—but not limited to—electrical storage devices, magnetic storage devices, optical storage devices, electromagnetic storage devices, semiconductor storage devices, or any suitable combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), static random access memory (SRAM), portable compact disc read-only memory (CD-ROM), digital multifunction disc (DVD), memory sticks, floppy disks, mechanical encoding devices, such as punch cards or recessed protrusions storing instructions thereon, and any suitable combination thereof. The computer-readable storage media used herein are not to be construed as transient signals themselves, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through waveguides or other transmission media (e.g., light pulses through fiber optic cables), or electrical signals transmitted through wires.
[0062] The computer-readable program instructions described herein can be downloaded from computer-readable storage media to various computing / processing devices, or downloaded via a network, such as the Internet, local area network, wide area network, and / or wireless network, to an external computer or external storage device. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers, and / or edge servers. A network adapter card or network interface in each computing / processing device receives the computer-readable program instructions from the network and forwards them to the computer-readable storage media in the respective computing / processing device.
[0063] Computer program instructions used to perform the operations of this disclosure may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine-dependent instructions, microcode, firmware instructions, status setting data, or source code or object code written in any combination of one or more programming languages, including object-oriented programming languages such as Smalltalk, C++, etc., and conventional procedural programming languages such as the "C" language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or may be connected to an external computer (e.g., via the Internet using an Internet service provider). In some embodiments, electronic circuitry, such as programmable logic circuitry, field-programmable gate arrays (FPGAs), or programmable logic arrays (PLAs), is personalized by utilizing the status information of the computer-readable program instructions to implement various aspects of this disclosure.
[0064] Various aspects of this disclosure are described herein with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this disclosure. It should be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer-readable program instructions.
[0065] These computer-readable program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing apparatus to produce a machine such that, when executed by the processor of the computer or other programmable data processing apparatus, they create means for implementing the functions / actions specified in one or more blocks of the flowchart and / or block diagram. These computer-readable program instructions can also be stored in a computer-readable storage medium that causes a computer, programmable data processing apparatus, and / or other device to operate in a particular manner; thus, the computer-readable medium storing the instructions comprises an article of manufacture that includes instructions for implementing aspects of the functions / actions specified in one or more blocks of the flowchart and / or block diagram.
[0066] Computer-readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other device to cause a series of operational steps to be performed on the computer, other programmable data processing apparatus, or other device to produce a computer-implemented process, thereby causing the instructions executed on the computer, other programmable data processing apparatus, or other device to perform the functions / actions specified in one or more boxes of a flowchart and / or block diagram.
[0067] The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of the present disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of an instruction containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions marked in the blocks may occur in a different order than those shown in the drawings. For example, two consecutive blocks may actually be executed substantially in parallel, and they may sometimes be executed in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, may be implemented using a dedicated hardware-based system that performs the specified function or action, or using a combination of dedicated hardware and computer instructions.
[0068] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. A smart isolation system for nuclear power plants based on the linkage of RFID and digital procedures, characterized in that, The system includes: a digital procedure management platform, multiple RFID tags, multiple smart isolation signs, and multiple mobile terminals; An RFID tag is installed at the physical isolation point of each piece of equipment that needs to be isolated within the nuclear power plant. Each RFID tag has a unique RFID code and is associated with the equipment code and location information in the background database of the digital procedure management platform. The smart isolation sign has a built-in active RFID module, status sensor, and microprocessor and memory. Active RFID modules are used for identification and location by readers; The status sensor is used to sense the posture information of the smart isolation sign and determine whether the smart isolation sign has been attached or removed based on the posture information. When the status sensor detects that the smart isolation sign has been attached, it sends an attachment prompt to the digital procedure management platform; when the status sensor detects that the smart isolation sign has been removed, it sends a removal prompt to the digital procedure management platform. The microprocessor and memory are used to store the currently associated isolation instruction ID and isolation instruction information, as well as the status of the smart isolation board. The isolation instructions include: operator, planned operation time, and operation content. The mobile smart terminal has a built-in RFID reader / writer, which is used to receive isolation tasks, scan and verify the RFID tags of field equipment, and read and write to the smart isolation sign in order to attach or remove the smart isolation sign.
2. The system according to claim 1, characterized in that, The smart isolation sign also features indicator lights and a buzzer to provide audible and visual alarms when an alarm is triggered.
3. The system according to claim 1, characterized in that, The smart isolation sign also includes: a display screen for displaying device information and isolation instructions for the isolation tasks to be performed; and a power supply module including a rechargeable battery for supplying power to the smart isolation sign.
4. The system according to claim 1, characterized in that, The smart isolation sign also includes a power supply module for supplying power to the smart isolation sign.
5. A smart isolation method for nuclear power plants based on the linkage of RFID and digital procedures, the method comprising: Step 1, Generation and issuance of isolation commands: The digital procedure management platform creates isolation tasks based on work orders and generates structured isolation instructions corresponding to the isolation tasks. The isolation instructions include: instruction ID, risk level, target device RFID code list, device information corresponding to each target device RFID code, and isolation measures. The digital procedure management platform pushes the isolation task to the approval stage, and after the isolation task is approved, it sends the isolation instructions and isolation command to the mobile terminal held by the operator performing the isolation task. Step 2, On-site execution and automatic verification: After scanning the passive RFID tag on the target device, the mobile terminal reads the field device ID and determines whether the field device ID exists in the target device RFID code list. If the field device ID exists in the target device RFID code list, the verification is successful. The mobile terminal displays the device information of the field device and the isolation measures to be performed according to the isolation instruction matched from the target device RFID code list, and prompts the user to attach a smart isolation tag. After the mobile terminal writes the isolation command and operator and timestamp information to the smart isolation sign, the sign is successfully hung. If the on-site device ID does not belong to the target device RFID code list, the mobile terminal will immediately issue an alarm, prompting the operator to go to the wrong interval and locking the isolation task for the next operation; Step 3, Real-time Status Monitoring: When it is necessary to lift the isolation task, the operator scans the device's RFID tag and smart isolation sign again using a mobile terminal, writes the lifting isolation command to the smart isolation sign, and after the smart isolation sign verifies that the lifting isolation command is correct, changes the current status from authorized mounting to authorized removal. After detecting the removal action, it sends a removal prompt to the mobile terminal and the digital procedure management platform. After receiving the removal prompt, the digital procedure management platform changes the status of the isolation task corresponding to the removal prompt from executing to executed, and displays the executor and time.
6. The method according to claim 5, characterized in that, The method further includes: if the smart isolation sign detects that a dismantling action has not been written to end the isolation, it determines that the smart isolation sign has been mistakenly dismantled, and the smart isolation sign itself can issue an audible and visual alarm.
7. The method according to claim 6, characterized in that, If the smart isolation sign is determined to have been mistakenly removed, it will also send an alarm to the digital procedure management platform. After receiving the alarm, the digital procedure management platform will display the alarm event, which includes the isolation task and location information corresponding to the mistakenly removed smart isolation sign.
8. The method according to claim 5, characterized in that, The method also includes: after the isolation task release work order is closed, the digital procedure management platform automatically checks whether all smart isolation signs issued for the isolation task have sent removal prompts. If it detects that no removal prompt has been sent for the associated smart isolation sign, it is determined that there is a missing one. The digital procedure management platform issues a high-level alarm containing the location information of the smart isolation sign, prompting relevant personnel to handle it on-site.