Intelligent dispensing linkage cabinet control method and system for nuclear radiation control area

Abstract

The application provides a kind of intelligent distribution linkage cabinet control method and system for nuclear radiation control area, the method includes: receiving the operation request initiated by user on distribution equipment, by other means, complete user identity authentication and real-time check of nuclear power plant control area access authority;Judge its personnel type, and according to the first preset rule corresponding to personnel type, verify the validity of its radiation work permit and the matching of operation area and current control area entrance;Personal dosimeter is allocated and activated for user, and the unique identification of the dosimeter, user identity information and a specified locker establish logical binding relationship, when it is confirmed by hardware sensing that it has been taken away by user, send unlock instruction;When user initiates return operation and passes identity review, unlock the bound locker, and remove the binding relationship.The application can realize the systematic leap of nuclear radiation control area access management in safety, efficiency and intelligent level.

Description

Technical Field

[0001] This invention relates to the field of nuclear power plant radiation safety and personnel management technology, and in particular to a control method and system for an intelligent distribution and linkage cabinet used in nuclear radiation control areas. Background Technology

[0002] With the rapid development of nuclear power technology, the management of personnel access, personal dosimetry monitoring, and protective equipment in the controlled areas of nuclear power plants faces higher requirements. Traditional management models rely on manual on-duty personnel for the distribution and retrieval of dosimeters (such as EPDs and TLDs) and locker keys, which has the following significant drawbacks: (1) Inefficient and prone to congestion: The manual operation process is cumbersome, and during peak hours of major repairs, it is easy to cause serious congestion at the entrance of the control area, affecting the efficiency of operation.

[0003] (2) There are loopholes in the control: the dosimeter is "borrowed and not returned" or has a high risk of misoperation. It relies on manual supervision and cannot achieve a 100% recovery rate. There is a risk of loss of radiation monitoring data.

[0004] (3) Fragmented process and poor experience: Personnel need to complete multiple independent steps such as borrowing and returning dosimeters, using lockers, and verifying RWP (Radiation Work Permit) in sequence, and the process is not coherent.

[0005] (4) System isolation and insufficient intelligence: Some existing unattended equipment operates independently and is not deeply connected with the power plant's core platforms such as KZC (entrance and exit control) system and dose management system. The problem of information silos is prominent and there is a lack of integrated intelligent management and control.

[0006] Existing technologies, such as the integrated intelligent distribution cabinet proposed in patent CN202210661618.7, link lockers with dosimeter distribution, but suffer from insufficient digitalization and real-time security monitoring. The multi-functional locker disclosed in patent CN201821852117.2 has limited functionality and lacks an effective mechanism for managing dosimeter return. Therefore, there is an urgent need for an intelligent solution that can deeply integrate with business processes, achieve mandatory closed-loop control, and deeply integrate with the existing power plant management system. Summary of the Invention

[0007] The purpose of this invention is to provide a smart distribution and linkage cabinet control method and system for nuclear radiation control areas. It aims to achieve forced linkage between dosimeters and lockers through process reengineering and hardware-software synergy, ensuring 100% return of dosimeters. At the same time, through deep system integration and intelligent verification, it significantly improves the efficiency of entry and exit and the level of safety management in the control area.

[0008] In a first aspect, the present invention provides a control method for an intelligent distribution and linkage cabinet in a nuclear radiation control zone, characterized in that the method includes: Receive operation requests initiated by users on the distribution equipment, and complete real-time verification of user authentication and access rights to the nuclear power plant control area through at least one optional biometric identification or encrypted credential identification method; Based on the verified user identity, the system automatically determines the user's personnel type and verifies the validity of the radiation work permit and the matching of the work area with the current control area entrance according to the first preset rule corresponding to the personnel type. After the task permission verification is passed, a personal dosimeter is assigned and activated for the user, and a logical binding relationship is established between the unique identifier of the dosimeter, the user's identity information and a designated locker. This binding relationship is persistently stored. The physical presence of the activated dosimeter is monitored in real time. When the hardware sensor confirms that the dosimeter has been taken by the user, an unlocking command is automatically sent to the bound locker. Once the user initiates the return operation and passes the identity verification, the dosimeter is detected to have been correctly returned and the dose data has been read and uploaded. Subsequently, the bound locker is automatically unlocked and the binding relationship is released.

[0009] In some embodiments, the step of receiving an operation request initiated by a user on the distribution equipment and completing real-time verification of user authentication and access rights to the nuclear power plant control area through at least one optional biometric identification or encrypted credential identification method includes: Provide users with a unified interactive interface that does not require them to pre-select a verification method, and guide them to perform facial recognition or national cryptographic card authentication. If a user performs facial recognition, the system will compare the liveness detection data with the local feature database in real time and verify the validity of the user's authorization in the control area of ​​the KZC system. If the user performs national cryptographic card verification, the encrypted work number in the card is read by the card reader hardware decryption chip and matched and verified with the KZC system data; The two verification paths are independent and have equivalent results. If either path succeeds, the process proceeds to the next stage; if it fails, a specific reason is provided, and the user is guided to try the other path.

[0010] In some embodiments, the step of verifying the validity of the radiation work permit and the matching of the work area with the entrance of the current controlled area according to a first preset rule corresponding to the personnel type includes: For fixed professionals, the system automatically queries their long-term bound RWP information in the background to verify whether their validity period and work area cover the current entrance. For overhaul personnel, the first operation requires manual scanning of the RWP for verification. After successful verification, the RWP information is associated with the personnel's identity and cached for a preset period of time. Subsequent operations will automatically call the cached information for verification within the cache validity period. For temporary staff, manual scanning is required for each operation, and the system queries the central database in real time to verify the real-time validity of the RWP and the accurate matching of the work area.

[0011] In some embodiments, the step of assigning and activating a personal dosimeter to the user after successful task permission verification includes: Establish CAN bus communication with the dosimeter via magnetic communication connection; Send an activation command frame containing the user's employee number and RWP task number to the dosimeter; After receiving the activation confirmation frame returned by the dosimeter, a three-element binding record of the dosimeter ID, user ID, and assigned locker ID is created and saved in local non-volatile storage.

[0012] In some embodiments, the step of automatically sending an unlock command to the bound locker when it is confirmed by hardware sensing that the locker has been taken by a user includes: The current in the circuit connected to the dosimeter is monitored by using the charging and reading base inside the dosimeter storage compartment. When the current changes from the operating state to zero or the communication link is interrupted, it is determined that the dosimeter has been physically removed.

[0013] In some embodiments, the step of automatically unlocking the bound locker and terminating the binding relationship after the user initiates a return operation and passes identity verification, detects that the dosimeter has been correctly returned and completed dose data reading and uploading, and then after that, includes: After the user is authenticated again, the system opens the corresponding dosimeter storage cell; Once the dosimeter is detected and communication is established, the system first reads the employee ID information stored in the dosimeter and compares it with the current user's identity. If they do not match, the process is terminated and an alarm is triggered. Read the cumulative dose data from the dosimeter and compare it with the dose limit of the user's current task RWP. If the limit is exceeded, generate an alarm record. The dose data, personnel information, and timestamps are packaged and uploaded to the central dose management platform. After receiving confirmation of successful reception from the platform, an unlocking command is sent to the locker bound to the user. After confirming that the locker has been used, unbind it in the system and mark the dosimeter as idle.

[0014] In some embodiments, the method further includes: All critical binding relationships and device status are written to non-volatile memory in real time; When the system resumes operation after a restart or power outage, it first restores the most recent complete state snapshot from non-volatile memory; If a verification failure, communication timeout, or hardware failure occurs at any stage, the current process shall be terminated immediately. Based on the error type, it provides clear guidance information to the user interface and generates a structured log containing time, user, device, and error code.

[0015] Secondly, the present invention provides a short-term probabilistic power prediction system applied in peak shaving scenarios, the system comprising: The data acquisition module is used to acquire historical charging power data of electric vehicle charging stations, preprocess the historical charging power data, and construct a sample set including time series features and time labels based on the preprocessed historical charging power data, and divide the sample set into a training set and a test set. The model building module is used to build a short-term power prediction model based on a long short-term memory network, train the short-term power prediction model according to the training set, and predict the power of future periods according to the trained short-term power prediction model to obtain multiple point prediction results. The confidence interval calculation module is used to obtain the prediction error of the trained short-term power prediction model on the test set, and to obtain the power prediction interval and daily charging power probability distribution under different confidence levels based on the point prediction results and the prediction error. The evaluation module is used to evaluate the potential of electric vehicles to participate in peak shaving or valley filling power regulation at a specified confidence level, based on the probability prediction interval and the probability distribution of daily charging power.

[0016] Thirdly, the present invention provides a storage medium that stores one or more programs, which, when executed by a processor, implement the above-described intelligent distribution and linkage cabinet control method for nuclear radiation control zones.

[0017] Fourthly, the present invention provides an electronic device, the electronic device comprising a memory and a processor, wherein: The memory is used to store computer programs; When the processor executes the computer program stored in the memory, it implements the above-mentioned intelligent distribution and linkage cabinet control method for nuclear radiation control areas.

[0018] Compared with the prior art, the present invention has the following advantages: This invention integrates multimodal authentication, differentiated intelligent verification based on personnel type (RWP), hardware-level mandatory linkage between dosimeters and lockers, and closed-loop management of the entire data process. By providing parallel and selectable facial recognition and national cryptographic card verification paths, this method not only improves the convenience and fault tolerance of user verification but also ensures the timeliness and accuracy of permissions through real-time verification via the KZC system. For different personnel types (fixed, overhaul, temporary), automated, semi-automated, and mandatory verification strategies for RWP significantly optimize the passage efficiency for fixed and overhaul personnel while ensuring security and compliance. Its core contribution lies in the persistent storage of the "dosimeter-user-locker" ternary binding relationship and real-time monitoring of hardware status (such as charging current), achieving a physically mandatory closed loop where the locker can be opened immediately upon dosimeter retrieval and only after the dosimeter is returned and data is uploaded. This fundamentally solves the management loophole of dosimeters being borrowed and not returned, ensuring 100% recovery of dosimeter data. Meanwhile, this method has system-level robustness, ensures the continuity of business rules after abnormal interruption through a state snapshot recovery mechanism, and combines structured exception handling and a log system to achieve full-process traceability and highly reliable operation and maintenance. Thus, it achieves a systematic leap in the level of security, efficiency and intelligence of nuclear radiation control zone access management as a whole. Attached Figure Description

[0019] Figure 1 This is a flowchart of a smart distribution and linkage cabinet control method for nuclear radiation control areas proposed in an embodiment of the present invention; Figure 2 This is a schematic diagram of the intelligent distribution and linkage cabinet of the present invention; Figure 3 This is a schematic diagram of the intelligent distribution and linkage cabinet control system for nuclear radiation control areas proposed in an embodiment of the present invention.

[0020] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, 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. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art. The terms "comprising" and similar expressions used herein mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, but does not exclude other elements or objects.

[0022] like Figure 1 and Figure 2 As shown, an embodiment of the present invention proposes a control method for an intelligent distribution and linkage cabinet in a nuclear radiation control area. The method includes steps S101 to S105, wherein: Step S101: Receive the operation request initiated by the user on the distribution equipment, and complete the real-time verification of user authentication and access permission to the nuclear power plant control area through at least one biometric identification or encrypted credential identification method that can be selected in parallel. It should be noted that users initiate an operation request by clicking the "Borrow" or "Return" button on the touchscreen of the integrated distribution cabinet. The system then redirects to a unified identity verification interface. This interface is designed according to the principle of "parallel selectability," and does not have pre-selection buttons for "Select Face Recognition" or "Select National Cryptographic Card." Instead, it simultaneously displays graphic and text prompts for both the camera's capture area and the national cryptographic card's reading area, allowing users to decide which verification method to use based on their own circumstances (such as whether they are wearing a mask).

[0023] (1) If a user performs facial recognition, the system will compare the face with the local feature database in real time through liveness detection and verify the validity of the user's authorization in the control area of ​​the KZC system, specifically: 1. The user faces the face recognition camera on the top of the device, which uses a 5-megapixel HDR sensor.

[0024] 2. After the camera senses a face, it automatically activates the liveness detection module, which uses infrared or 3D structured light technology to determine whether the person is a real living person, effectively preventing forgery attacks such as photos and videos.

[0025] 3. After the liveness detection is passed, the system immediately extracts the facial feature vector on the local industrial control computer of the device using a lightweight face recognition algorithm (such as ArcFace).

[0026] 4. This feature vector will be compared with the local synchronized KZC (access control) system personnel feature database in real time at a ratio of 1:N, with the response time controlled within 0.3 seconds and the similarity threshold set at 95%.

[0027] 5. After a successful comparison, the system queries the KZC system in real time to check the person's control area authorization status, verifying whether their training records, medical evaluations, and whole-body counter (WBC) measurement results are all within their validity period. This is a real-time verification of permissions.

[0028] (2) If the user performs national cryptographic card verification, the encrypted employee number in the card is read by the card reader hardware decryption chip and matched and verified with the KZC system data, specifically: 1. The user places their personal national cryptographic card close to the card reader area on the front of the device.

[0029] 2. After the card reader (supporting SM4 / SM7 national cryptographic algorithms) senses the card, its built-in hardware decryption chip automatically reads and decrypts the encrypted data on the card, securely extracting information such as the person's 10-digit employee ID, authorization level, and validity period.

[0030] 3. The industrial control computer will accurately match the decrypted employee ID with the locally synchronized KZC system database to verify whether the person's access to the control area is valid.

[0031] The two verification paths described above are independent and have equivalent results. If either path succeeds, the process proceeds to the next stage; if it fails, a specific reason is provided, and the user is guided to try the other path.

[0032] Step S102: Based on the verified user identity, automatically determine the user's personnel type, and verify the validity of the radiation work permit and the matching of the work area with the current control area entrance according to the first preset rule corresponding to the personnel type; It should be noted that if verification fails, such as due to face mismatch, expired card, or lack of permissions, the system will provide specific reasons for the failure, such as "Face verification failed, please try again or use the national cryptographic card" or "Authorization has expired," and will guide the user to try another path or contact the administrator, demonstrating good interactive fault tolerance.

[0033] After successful identity verification, the system automatically retrieves the user's employee ID and queries the preset "Personnel Type Mapping Table." This table is defined and updated by the backend management system based on rules such as personnel department, position, and authorization period. Personnel types are mainly divided into: permanent professionals (such as operation and maintenance personnel), overhaul personnel, and temporary personnel.

[0034] Based on the identified personnel type, the system performs differentiated RWP (Radiation Work Permit) verification, specifically as follows: 1. For fixed professional personnel: Rule: The system will automatically retrieve the valid RWP information that the user has pre-bound from the "RWP Long-Term Binding Table" database in the background.

[0035] Verification includes: checking if the validity period of the RWP includes the current date; and verifying if the list of work areas permitted by the RWP covers the partition corresponding to the current control zone entrance. This ensures general compliance of the authorization.

[0036] 2. For overhaul personnel: First-time operation rules: The system prompts the user to use the QR code scanner at the distribution cabinet to scan the paper or electronic RWP code for this overhaul task.

[0037] Verification and caching: After scanning the code, the system verifies the validity of the RWP and the region matching in real time. Once the verification is successful, the system associates the core information of the RWP (number, validity period, region) with the employee's employee number and caches it in local non-volatile storage for a preset cache duration of 7 days.

[0038] Rules during the caching period: During the 7-day caching period, when the user performs another operation, the system will automatically call the cached RWP information for validity and region verification, eliminating the need to scan the code again, which greatly improves the efficiency of personnel who frequently enter and exit during major maintenance.

[0039] Cache state synchronization: To prevent cache invalidation due to changes in the state of the background RWP (such as premature deregistration), the system performs a lightweight state synchronization check with the central server every time the cache is accessed.

[0040] 3. For temporary staff: Rule: Manual QR code verification is mandatory for every operation.

[0041] Verification content: The system connects to the central RWP database in real time to verify not only the real-time status of the license (whether it is valid or not revoked), but also requires that its work area must be precisely matched with the current entry zone, and cross-zone operations are not allowed, implementing the strictest control.

[0042] If any type of personnel fails RWP verification (e.g., expired, region mismatch), the system will terminate the process and provide the specific reason.

[0043] Step S103: After the task permission verification is passed, a personal dosimeter is assigned and activated for the user, and a logical binding relationship is established between the unique identifier of the dosimeter, the user's identity information and a designated locker. This binding relationship is persistently stored. It should be noted that after RWP verification is successful, the system enters the dosimeter distribution and activation process, specifically as follows: Allocation: The industrial control computer queries the status of all dosimeter storage compartments and selects a compartment marked as idle and with normal communication to allocate to the current user. The allocation strategy can adopt the principle of proximity.

[0044] Communication establishment and activation: Users can open the designated dosimeter storage compartment by following the on-screen prompts. The compartment is equipped with a magnetic charging and reading / writing base.

[0045] When the user inserts or removes the dosimeter, the magnetic contacts at the bottom of the dosimeter and the spring-loaded pin on the base automatically and precisely align under the attraction of the neodymium magnet, establishing a physical connection. This connection also provides 12V power and a CAN bus communication channel, including CAN-H and CAN-L lines.

[0046] After communication is established, the industrial control computer sends a status query command frame to the dosimeter via the CAN bus. If the dosimeter returns specific data (such as all zeros) indicating that it is inactive, the industrial control computer sends an activation command frame to it. The data field of this command frame contains the user's employee number encoded in ASCII and the RWP number for this task.

[0047] Upon receiving the activation command, the dosimeter writes the employee ID and task number into its internal non-volatile memory and returns an activation confirmation frame with a checksum. At this point, the dosimeter is activated and bound to the current personnel and task.

[0048] Establish and persist the ternary binding relationship for storage: Upon successful activation, the industrial control computer creates a critical record in local non-volatile storage media (such as SSD or FRAM). This record is stored in a structured format and contains at least three core fields: the physical ID of the dosimeter or the address of its storage compartment, the user's employee ID, and the ID of a specific locker assigned to this user by the system.

[0049] The ternary binding relationship between the dosimeter, personnel, and locker is immediately written to storage. This persistent storage ensures that the binding relationship will not be lost even if the system experiences a temporary restart or power outage, providing an immutable data foundation for subsequent forced linkage.

[0050] Step S104: Monitor the physical presence of the activated dosimeter in real time. When it is confirmed by hardware sensing that the dosimeter has been taken by the user, automatically send an unlock command to the bound locker. It should be noted that this step involves monitoring the current in the circuit connected to the dosimeter via the charging and reading / writing base inside the dosimeter storage compartment; when the current changes from the working state to zero or the communication link is interrupted, it is determined that the dosimeter has been physically removed.

[0051] Specifically, the user removes the activated dosimeter from the compartment. The system detects this action through real-time monitoring at the hardware level, specifically: Hardware sensing mechanism: Inside the dosimeter storage compartment, the charging read / write base continuously charges the dosimeter and maintains communication.

[0052] Monitoring method: The base circuit continuously monitors the operating current of the circuit connected to the dosimeter, or monitors the heartbeat signal of the CAN bus communication link.

[0053] Status determination: When the user removes the dosimeter from the base, the physical connection is broken, the charging current drops to zero instantaneously, or the communication link is immediately interrupted. The system (the microcontroller or industrial computer in the base) detects this status change within a very short time (≤0.5 seconds), thus confirming that the dosimeter has been physically removed.

[0054] Automatic unlocking: Once it is confirmed that the dosimeter has been removed, the industrial control computer immediately retrieves the designated locker ID assigned to the user based on the ternary binding relationship established and persisted in step S103.

[0055] Subsequently, the industrial control computer sends an unlocking command to the 12V DC electromagnetic lock of the locker via the RS485 communication bus.

[0056] After receiving the command, the electronic locker of the locker will unlock, allowing the user to open the locker door and store their personal belongings. A notification will simultaneously appear on the screen indicating that the locker has been unlocked.

[0057] This process enables hardware-level forced and automatic linkage between retrieving the dosimeter and opening the locker, simplifying user operations and logically tightly coupling the borrowing of the dosimeter with the use of the locker.

[0058] Step S105: After the user initiates the return operation and passes the identity verification, it is detected that the dosimeter has been correctly returned and the dose data reading and uploading are completed. Then, the bound locker is automatically unlocked and the binding relationship is released.

[0059] In this step, after the user is authenticated again, the system opens the corresponding dosimeter storage cell; Once the dosimeter is detected and communication is established, the system first reads the employee ID information stored in the dosimeter and compares it with the current user's identity. If they do not match, the process is terminated and an alarm is triggered.

[0060] In addition, the cumulative dose data of the dosimeter needs to be read and compared with the dose limit of the user's current task RWP. If the limit is exceeded, an alarm record is generated. Then, the dose data, personnel information and timestamp need to be packaged and uploaded to the central dose management platform. After receiving confirmation of successful receipt from the platform, an unlock command is sent to the locker bound to the user. After confirming that the locker has been used, the binding is removed in the system and the dosimeter is marked as idle.

[0061] Specifically, after completing their work, users return to the distribution cabinet to return it, as follows: 1. Identity Verification: When a user clicks the "Return" button, the system requires them to verify their identity again (e.g., by swiping a card or facial recognition) to ensure that the borrower is indeed returning the device. After successful verification, the system queries the persistent binding record, automatically opens the specific dosimeter storage compartment previously borrowed by the user, and guides them to return the dosimeter to its original location.

[0062] 2. Detection, error prevention, and data retrieval: The user places the dosimeter into the compartment, and the magnetic connection is automatically restored.

[0063] The system first reads the employee ID information stored internally by the dosimeter via the CAN bus and compares it with the currently verified user's employee ID. This is the information matching verification. If the two do not match, the system immediately terminates the process and issues an alarm for "dosimeter information mismatch" to prevent erroneous return or malicious swapping and ensure accurate attribution of dosimeter data.

[0064] After error prevention is successful, the system sends a command to read the radiation dose data accumulated by the dosimeter during operation. The system compares the read dose value with the dose limit specified in the RWP for this task. If the limit is exceeded, an alarm event is generated and recorded, and the management platform is notified. However, the process continues to ensure the equipment can be retrieved.

[0065] 3. Data upload and closed-loop linkage: The industrial control computer packages the read dose data, personnel information, timestamps, etc., and uploads them to the central dose management platform via TCP / IP network.

[0066] After receiving confirmation from the management platform that the data has been successfully received, the industrial control computer sends an unlock command to the user's bound locker again based on the persistent three-element binding relationship.

[0067] The user opens the locker to retrieve personal belongings. After the locker door is closed, the system confirms the end of the current borrowing period, then releases the binding relationship between the dosimeter, the user, and the locker, and updates the dosimeter status to idle and the locker status to pending cleaning / idle.

[0068] Furthermore, in some embodiments, all critical binding relationships and device states are written to non-volatile memory in real time. When the system comes back online after an unexpected power outage or restart, the first step is to restore the most recent complete state snapshot from the non-volatile memory. This allows the system to quickly restore to the precise state before the interruption (e.g., who borrowed which dosimeter and which locker it corresponds to) and continue to enforce business rules such as requiring the locker to be returned before it can be opened, ensuring the continuity and enforceability of the control logic.

[0069] If an anomaly such as verification failure, communication timeout, or hardware failure occurs, the system will immediately terminate the current process. Based on the error type, it will provide clear guidance information on the user interface (e.g., please retry, please contact the administrator). Simultaneously, the system will generate a structured log, detailing the time of the anomaly, the associated user, the involved devices, the error code, and possible solutions. These logs provide complete and reliable evidence for system operation and maintenance, troubleshooting, and security auditing.

[0070] In summary, this invention integrates multimodal authentication, differentiated intelligent verification of RWP based on personnel type, hardware-level mandatory linkage between dosimeters and lockers, and closed-loop management of the entire data process. By providing parallel and selectable facial recognition and national cryptographic card verification paths, this method not only improves the convenience and fault tolerance of user verification but also ensures the timeliness and accuracy of permissions through real-time verification via the KZC system. For different personnel types (fixed, overhaul, temporary), automated, semi-automated, and mandatory verification strategies for RWP significantly optimize the passage efficiency for fixed and overhaul personnel while ensuring security and compliance. Its core contribution lies in the persistent storage of the "dosimeter-user-locker" ternary binding relationship and real-time monitoring of hardware status (such as charging current), achieving a physically mandatory closed loop where the locker can be opened immediately upon dosimeter retrieval and only after the dosimeter is returned and data is uploaded. This fundamentally solves the management loophole of dosimeters being borrowed and not returned, ensuring 100% recovery of dosimeter data. Meanwhile, this method has system-level robustness, ensures the continuity of business rules after abnormal interruption through a state snapshot recovery mechanism, and combines structured exception handling and a log system to achieve full-process traceability and highly reliable operation and maintenance. Thus, it achieves a systematic leap in the level of security, efficiency and intelligence of nuclear radiation control zone access management as a whole.

[0071] like Figure 3 As shown, one embodiment of the present invention proposes an intelligent distribution and linkage cabinet control system for nuclear radiation control areas, the system comprising: The request receiving module 10 is used to receive operation requests initiated by users on the distribution equipment and to complete user authentication and real-time verification of access rights to the nuclear power plant control area through at least one biometric identification or encrypted credential identification method that can be selected in parallel. The identity verification module 20 is used to automatically determine the personnel type based on the verified user identity, and verify the validity of the radiation work permit and the matching of the work area with the current control area entrance according to the first preset rule corresponding to the personnel type. The activation module 30 is used to assign and activate a personal dosimeter to the user after the task permission verification is passed, and to establish a logical binding relationship between the unique identifier of the dosimeter, the user's identity information and a designated locker. This binding relationship is persistently stored. The unlock command sending module 40 is used to monitor the physical presence status of the activated dosimeter in real time. When it is confirmed by hardware sensing that the dosimeter has been taken away by the user, it automatically sends an unlock command to the bound locker. The unlocking module 50 is used to automatically unlock the bound locker and release the binding relationship after the user initiates a return operation and passes identity verification, detects that the dosimeter has been correctly returned and completed the reading and uploading of dose data.

[0072] In another aspect, the present invention also proposes a storage medium on which one or more programs are stored, which, when executed by a processor, implement the above-described intelligent distribution and linkage cabinet control method for nuclear radiation control areas.

[0073] In another aspect, the present invention also proposes an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and the processor is used to execute the computer program stored in the memory to realize the above-mentioned intelligent distribution linkage cabinet control method for nuclear radiation control areas.

[0074] Those skilled in the art will understand that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can mean any means that can contain stored, communicated, propagated, or transmitted programs for use by, or in conjunction with, an instruction execution system, apparatus, or device.

[0075] More specific examples of computer-readable media (a non-exhaustive list) include: electrical connections (electronic devices) having one or more wires, portable computer disk drives (magnetic devices), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, computer-readable media can even be paper or other suitable media on which the program can be printed, because the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in computer memory.

[0076] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0077] While embodiments of the present invention have been described in detail above, it will be apparent to those skilled in the art that various modifications and variations can be made to these embodiments. However, it should be understood that such modifications and variations fall within the scope and spirit of the invention as set forth in the claims. Furthermore, the invention described herein may have other embodiments and can be implemented or carried out in various ways.

Claims

1. A control method for an intelligent distribution and linkage cabinet in a nuclear radiation control zone, characterized in that, The method includes: Receive operation requests initiated by users on the distribution equipment, and complete real-time verification of user authentication and access rights to the nuclear power plant control area through at least one optional biometric identification or encrypted credential identification method; Based on the verified user identity, the system automatically determines the user's personnel type and verifies the validity of the radiation work permit and the matching of the work area with the current control area entrance according to the first preset rule corresponding to the personnel type. After the task permission verification is passed, a personal dosimeter is assigned and activated for the user, and a logical binding relationship is established between the unique identifier of the dosimeter, the user's identity information and a designated locker. This binding relationship is persistently stored. The physical presence of the activated dosimeter is monitored in real time. When the hardware sensor confirms that the dosimeter has been taken by the user, an unlocking command is automatically sent to the bound locker. Once the user initiates the return operation and passes the identity verification, the dosimeter is detected to have been correctly returned and the dose data has been read and uploaded. Subsequently, the bound locker is automatically unlocked and the binding relationship is released.

2. The intelligent distribution and linkage cabinet control method for nuclear radiation control zones according to claim 1, characterized in that, The steps of receiving the operation request initiated by the user on the distribution equipment and completing the real-time verification of user authentication and access rights to the nuclear power plant control area through at least one optional biometric identification or encrypted credential identification method include: Provide users with a unified interactive interface that does not require them to pre-select a verification method, and guide them to perform facial recognition or national cryptographic card authentication. If a user performs facial recognition, the system will compare the liveness detection data with the local feature database in real time and verify the validity of the user's authorization in the control area of ​​the KZC system. If the user performs national cryptographic card verification, the encrypted work number in the card is read by the card reader hardware decryption chip and matched and verified with the KZC system data; The two verification paths are independent and have equivalent results. If either path succeeds, the process proceeds to the next stage; if it fails, a specific reason is provided, and the user is guided to try the other path.

3. The intelligent distribution and linkage cabinet control method for nuclear radiation control zones according to claim 1, characterized in that, The steps of verifying the validity of the radiation work permit and the matching of the work area with the entrance of the current controlled area according to the first preset rule corresponding to the personnel type include: For fixed professionals, the system automatically queries their long-term bound RWP information in the background to verify whether their validity period and work area cover the current entrance. For overhaul personnel, the first operation requires manual scanning of the RWP for verification. After successful verification, the RWP information is associated with the personnel's identity and cached for a preset period of time. Subsequent operations will automatically call the cached information for verification within the cache validity period. For temporary staff, manual scanning is required for each operation, and the system queries the central database in real time to verify the real-time validity of the RWP and the accurate matching of the work area.

4. The intelligent distribution and linkage cabinet control method for nuclear radiation control areas according to claim 1, characterized in that, The steps of assigning and activating a personal dosimeter to the user after the task permission verification is passed include: Establish CAN bus communication with the dosimeter via magnetic communication connection; Send an activation command frame containing the user's employee number and RWP task number to the dosimeter; After receiving the activation confirmation frame returned by the dosimeter, a three-element binding record of the dosimeter ID, user ID, and assigned locker ID is created and saved in local non-volatile storage.

5. The intelligent distribution and linkage cabinet control method for nuclear radiation control areas according to claim 1, characterized in that, The step of automatically sending an unlock command to the bound locker when the hardware sensor confirms that the locker has been taken by the user includes: The current in the circuit connected to the dosimeter is monitored by using the charging and reading base inside the dosimeter storage compartment. When the current changes from the operating state to zero or the communication link is interrupted, it is determined that the dosimeter has been physically removed.

6. The intelligent distribution and linkage cabinet control method for nuclear radiation control areas according to claim 1, characterized in that, The steps of automatically unlocking the bound locker and terminating the binding relationship after the user initiates the return operation and passes identity verification, detects that the dosimeter has been correctly returned and completed dose data reading and uploading, and then automatically unlocks the bound locker: After the user is authenticated again, the system opens the corresponding dosimeter storage cell; Once the dosimeter is detected and communication is established, the system first reads the employee ID information stored in the dosimeter and compares it with the current user's identity. If they do not match, the process is terminated and an alarm is triggered. Read the cumulative dose data from the dosimeter and compare it with the dose limit of the user's current task RWP. If the limit is exceeded, generate an alarm record. The dose data, personnel information, and timestamps are packaged and uploaded to the central dose management platform. After receiving confirmation of successful reception from the platform, an unlocking command is sent to the locker bound to the user. After confirming that the locker has been used, unbind it in the system and mark the dosimeter as idle.

7. The intelligent distribution and linkage cabinet control method for nuclear radiation control areas according to claim 1, characterized in that, The method further includes: All critical binding relationships and device status are written to non-volatile memory in real time; When the system resumes operation after a restart or power outage, it first restores the most recent complete state snapshot from non-volatile memory; If a verification failure, communication timeout, or hardware failure occurs at any stage, the current process shall be terminated immediately. Based on the error type, it provides clear guidance information to the user interface and generates a structured log containing time, user, device, and error code.

8. A smart distribution and linkage cabinet control system for nuclear radiation control areas, characterized in that, The system includes: The request receiving module is used to receive operation requests initiated by users on the distribution equipment, and to complete user authentication and real-time verification of access rights to the nuclear power plant control area through at least one optional biometric identification or encrypted credential identification method. The identity verification module is used to automatically determine the personnel type based on the verified user identity, and verify the validity of the radiation work permit and the matching of the work area with the current control area entrance according to the first preset rule corresponding to the personnel type. The activation module is used to assign and activate a personal dosimeter to a user after the task permission verification is passed, and to establish a logical binding relationship between the unique identifier of the dosimeter, the user's identity information and a designated locker. This binding relationship is persistently stored. The unlock command sending module is used to monitor the physical presence status of the activated dosimeter in real time. When it is confirmed by hardware sensing that the dosimeter has been taken away by the user, it automatically sends an unlock command to the bound locker. The unlocking module is used to automatically unlock the bound locker and release the binding relationship after the user initiates a return operation and passes identity verification, detects that the dosimeter has been correctly returned and completed the reading and uploading of dose data.

9. A storage medium, characterized in that, The storage medium stores one or more programs that, when executed by a processor, implement the intelligent distribution and linkage cabinet control method for nuclear radiation control zones as described in any one of claims 1-7.

10. An electronic device comprising a memory and a processor, wherein: The memory is used to store computer programs; When the processor executes the computer program stored in the memory, it implements the intelligent distribution and linkage cabinet control method for nuclear radiation control areas as described in any one of claims 1-7.

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