A real-time monitoring and inventory method and system for secret carriers based on RFID

Abstract

This application discloses a method for real-time monitoring and inventory of secure carriers based on RFID. The method acquires the RFID tag identification information corresponding to the target secure carrier and establishes a correlation between the tag and the target secure carrier's file information. If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session correlation is established. The method acquires RFID reading events and the regional location information output by the borrower's mobile terminal to determine the current regional status of the target secure carrier, updates the displayed status on the electronic map, performs anomaly detection, and outputs alarm information. Finally, the method acquires the actual list of tags in the inventory and compares it with the list of tags that should be in the inventory to determine the inventory result. The method provided in this application can achieve regional-level dynamic monitoring, visual display, anomaly early warning, and inventory verification of secure carriers.

Description

Technical Field

[0001] This application relates to the fields of information security and Internet of Things technology, and in particular to a method and system for real-time monitoring and inventory of secure carriers based on RFID. Background Technology

[0002] In government agencies, military enterprises, research institutions, and other organizations handling classified information, the physical management of classified documents, portable hard drives, USB flash drives, optical discs, and other secure media requires high levels of security. To improve the standardization and informatization of classified media management, in addition to manual registration and inventory methods, existing technologies include intelligent control cabinets and intelligent storage cabinets based on Radio Frequency Identification (RFID). These solutions typically use RFID electronic tags on classified media, combined with authentication devices, cabinet door control devices, RFID readers, and a back-end management platform, to achieve identification, operation recording, and information management for the entry, storage, borrowing, and return of classified media.

[0003] However, existing RFID-based secure carrier management solutions mostly focus on smart cabinets, storage cabinets, or fixed entrances / exits as core application scenarios. Their technical focus is primarily on cabinet access control, fixed node identification, borrowing and returning record keeping, and historical information retrieval. Once a secure carrier is authorized to be removed from its storage location, its subsequent movement within the controlled area typically relies on cabinet readers, fixed access control readers, and other devices to generate discrete identification events. Therefore, existing solutions can usually determine whether a secure carrier has been removed, passed through a specific entrance / exit, and been returned, but for secure carriers that have left their fixed storage location, it is difficult to continuously update and visualize their current location, the corresponding person carrying them, and the changes in their status.

[0004] Furthermore, in high-security scenarios, the management of secure carriers involves not only access records but also monitoring requirements such as whether they remain in authorized areas after being borrowed, whether they are still carried by authorized personnel, whether they are overdue, whether they have entered unauthorized areas, and whether the current recorded status matches the actual status in the area. Existing technologies have limited capabilities in sensing and updating the status of secure carriers after they leave their fixed storage locations. They are insufficient in areas such as regional status monitoring, automatic inventory, anomaly identification, and early warning linkage, making it difficult to meet the application requirements for comprehensive, dynamic, and refined monitoring of secure carriers. Therefore, how to achieve regional status updates, visual monitoring, and integrated management combining inventory and early warning systems with existing RFID identification and access control has become a pressing technical problem to be solved. Summary of the Invention

[0005] This application provides a method and system for real-time monitoring and inventory of secure carriers based on RFID, aiming to solve the shortcomings of existing technologies in terms of regional-level status monitoring, automatic inventory, anomaly identification, and early warning linkage.

[0006] Firstly, a method for real-time monitoring and inventory of secure carriers entering and exiting based on RFID, the method comprising:

[0007] Obtain the RFID tag identification information corresponding to the target confidential carrier, and establish the association between the RFID tag identification information and the file information of the target confidential carrier;

[0008] In response to a borrowing operation initiated by a borrowing user, the system obtains the borrowing user's identity information and borrowing authorization information.

[0009] If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session association relationship is established between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information;

[0010] Acquire RFID reading events and the area location information output by the borrowing user's mobile terminal;

[0011] During the validity period of the borrowing session, the current regional status of the target secure carrier is determined based on the RFID reading event and the regional location information;

[0012] Update the display status of the target confidential carrier in the electronic map based on the current regional status;

[0013] Anomaly determination is performed based on the matching relationship between the current region status, the authorized region information, and the authorized time limit information, and an alarm message is output when an anomaly is determined.

[0014] Obtain the actual list of labels in stock, and compare the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results.

[0015] Optionally, in the above scheme, the RFID reading event includes RFID tag identification information, reading location identification information, and reading time information;

[0016] The RFID reading events also include at least one of the following: storage location reading events generated by storage location RFID reading and writing devices, entrance and exit reading events generated by controlled entrance and exit RFID reading and writing devices, and patrol reading events generated by patrol RFID reading and writing devices.

[0017] Optionally, in the above scheme, determining the current regional status of the target secure carrier based on the RFID reading event and the regional location information during the valid borrowing session includes:

[0018] If the read event at the storage location indicates that the target secure carrier is located at the storage location, it is determined that the target secure carrier is in a stored state.

[0019] When the entry / exit reading event indicates that the target secure carrier has passed through the controlled entry / exit and matches the borrowing authorization information, it is determined that the target secure carrier is in a borrowed or returned state.

[0020] If the borrowing session is valid and the borrowing user's mobile terminal outputs the area location information corresponding to the target area, it is determined that the target confidential carrier is in a state where it is located in the target area along with the borrowing user.

[0021] If the patrol reading event indicates that the target confidential carrier is located in the patrol area, it is determined that the target confidential carrier is in the area confirmation state of the corresponding patrol area.

[0022] In the above scheme, optionally, when determining the current area status of the target confidential carrier, the storage location read event and the entrance / exit read event have higher priority than the patrol read event, and the patrol read event has higher priority than the area location information.

[0023] In the above scheme, optionally, the area location information includes at least one of area code, room number, floor area identifier and electronic fence identifier.

[0024] Optionally, in the above scheme, an anomaly is determined when at least one of the following conditions exists:

[0025] The target secure carrier was accessed without authorization through a controlled entry / exit point;

[0026] The target secure carrier was not returned before the authorized time limit;

[0027] The regional location information indicates that the borrowing user carrying the target confidential carrier has entered an unauthorized area;

[0028] The borrowing user's mobile terminal did not output regional location information within a preset time period;

[0029] The area corresponding to the patrol reading event is inconsistent with the area represented by the area location information.

[0030] Optionally, in the above scheme, if it is determined that the target confidential carrier has passed through the controlled entrance / exit without authorization, the method further includes: controlling the controlled entrance / exit to perform a locking operation or preventing a release operation.

[0031] Optionally, in the above scheme, comparing the actual list of labels in stock with the list of labels that should be in stock to determine the inventory result includes:

[0032] The confidential carrier corresponding to the RFID tag identification information that exists in the list of tags that should be in the inventory but does not exist in the list of tags that are actually in the inventory is identified as the inventory loss carrier;

[0033] The confidential carrier corresponding to the RFID tag identification information that exists in the actual in-stock tag list but does not exist in the tag list that should be in stock is identified as the inventory surplus carrier;

[0034] The confidential carrier corresponding to the RFID tag identification information that exists simultaneously in both the actual in-stock tag list and the tag that should be in the stock list is identified as the carrier that matches the actual inventory.

[0035] Optionally, in the above scheme, if the RFID reader at the controlled entrance / exit detects that the target secure carrier has entered the controlled area, and the RFID reader at the corresponding storage location detects that the target secure carrier has been returned within a preset time window, the borrowing session association is terminated.

[0036] Secondly, an RFID-based real-time monitoring and inventory system for secure carrier access, the system comprising:

[0037] RFID tags are attached to the target's secure carrier.

[0038] The intelligent management terminal is used to respond to a borrowing operation initiated by a borrowing user and obtain the borrowing user's identity information and borrowing authorization information;

[0039] RFID reader / writer devices are used to generate RFID read events;

[0040] Using the user's mobile terminal to output regional location information;

[0041] Electronic map display terminal;

[0042] The central management server is connected to the intelligent control terminal, the RFID reader / writer, the borrower's mobile terminal, and the electronic map display terminal, respectively, and is used for:

[0043] Establish the association between the RFID tag identification information and the target confidential carrier file information;

[0044] If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session association relationship is established between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information;

[0045] During the validity period of the borrowing session, the current regional status of the target secure carrier is determined based on the RFID reading event and the regional location information;

[0046] Update the display status of the target confidential carrier in the electronic map based on the current regional status;

[0047] Anomaly determination is performed based on the matching relationship between the current region status, the authorized region information, and the authorized time limit information, and an alarm message is output when an anomaly is determined.

[0048] Obtain the actual list of labels in stock, and compare the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results.

[0049] Compared with the prior art, this application has at least the following beneficial effects:

[0050] Based on further analysis and research of existing technical problems, this application recognizes that existing technologies still have shortcomings in areas such as regional-level status monitoring, automatic inventory, anomaly identification, and early warning linkage. By acquiring the RFID tag identification information corresponding to the target secure carrier and establishing a correlation between it and the target secure carrier's file information, each secure carrier possesses an identity basis that can be identified by a machine and corresponds one-to-one with the background file data. This provides a unified data entry point for subsequent automatic identification, status determination, and inventory comparison of secure carriers. Furthermore, by establishing the RFID tag identification information and the borrower's identity information after both the borrower's identity authentication and borrowing authorization are passed... The system establishes a borrowing session association relationship between the borrower's mobile terminal identification information, authorized area information, and authorized time limit information. This links the previously separate "carrier identity," "borrower," "authorized scope," and "authorized time limit" within the same management link. This allows the system to not only know "which secure carrier was borrowed," but also "who borrowed it, within what authorized scope, and when it should be returned." Furthermore, by acquiring RFID reading events and the regional location information output by the borrower's mobile terminal, and determining the current regional status of the target secure carrier during the valid borrowing session based on RFID reading events and regional location information, the system effectively constructs a secure carrier tracking system. The continuous status update mechanism after the carrier leaves the fixed storage location enables the system to evolve from merely recording access node information to dynamically monitoring the circulation status of the secure carrier within a controlled area. Furthermore, by updating the display status of the target secure carrier on the electronic map based on the current area status, the system can intuitively present the background judgment results, facilitating timely information on the distribution area and status changes of each secure carrier for administrators. Simultaneously, by performing anomaly detection based on the matching relationship between the current area status and authorized area and authorization time limit information, and outputting alarm information when anomalies are detected, the system can promptly identify and warn of abnormal situations such as unauthorized circulation, overdue returns, or area boundary violations. Finally… By obtaining the actual list of tags in stock and comparing it with the list of tags that should be in stock, the inventory results can be determined. This allows for the integration of real-time status management with inventory verification, enabling timely detection of discrepancies between the records and the actual inventory. Therefore, this application integrates RFID identification, borrowing session association, area status determination, electronic map display, anomaly detection, and inventory result determination into a unified whole. This transforms the management of secure carriers from a static recording method to a dynamic, visual, and verifiable closed-loop management method. This effectively solves the technical problems in existing technologies, such as the difficulty in continuously monitoring the location of secure carriers after they leave their fixed storage locations, the difficulty in timely detecting abnormal transfers, and the difficulty in timely verifying the consistency between the records and the actual inventory. Attached Figure Description

[0051] Figure 1This is a flowchart illustrating a method for real-time monitoring and inventory of RFID-based secure carriers in and out, provided as an embodiment of this application. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0053] In one embodiment, such as Figure 1 As shown, a method for real-time monitoring and inventory of secure carriers based on RFID is provided, including the following steps:

[0054] Obtain the RFID tag identification information corresponding to the target confidential carrier, and establish the association between the RFID tag identification information and the file information of the target confidential carrier;

[0055] In response to a borrowing operation initiated by a borrowing user, the system obtains the borrowing user's identity information and borrowing authorization information.

[0056] If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session association relationship is established between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information;

[0057] Acquire RFID reading events and the area location information output by the borrowing user's mobile terminal;

[0058] During the validity period of the borrowing session, the current regional status of the target secure carrier is determined based on the RFID reading event and the regional location information;

[0059] Update the display status of the target confidential carrier in the electronic map based on the current regional status;

[0060] Anomaly determination is performed based on the matching relationship between the current region status, the authorized region information, and the authorized time limit information, and an alarm message is output when an anomaly is determined.

[0061] Obtain the actual list of labels in stock, and compare the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results.

[0062] In one implementation, the RFID tag identification information corresponding to the target confidential carrier is first obtained, and an association is established between the RFID tag identification information and the file information of the target confidential carrier. Specifically, when the target confidential carrier is included in management, an RFID tag is set on the target confidential carrier, the RFID tag identification information is read by an RFID reader / writer, and the file information corresponding to the target confidential carrier is entered or retrieved in the central management server. The file information may include at least one of the following: carrier number, carrier name, security classification, department, responsible person, storage requirements, and borrowing restrictions. The central management server establishes a correspondence between the RFID tag identification information and the file information so that the target confidential carrier can be identified, its status updated, and inventoryed based on the RFID tag identification information. In response to a borrowing operation initiated by a borrowing user, the intelligent control terminal obtains the borrowing user's identity information and borrowing authorization information. The borrowing user can complete identity authentication by swiping a card, fingerprint recognition, facial recognition, password input, or a combination thereof. The borrowing authorization information may include at least one of the following: the target confidential carrier allowed to be borrowed, authorized area information, authorized time limit information, approval status, and approval personnel information. If the borrower's identity authentication and borrowing authorization are both successful, the central management server establishes a borrowing session association relationship between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information, so that the target confidential carrier forms a temporary association with the corresponding borrower and its mobile terminal during the borrowing period.

[0063] In one implementation, acquiring RFID reading events and the area location information output by the borrowing user's mobile terminal can be achieved collaboratively through a fixed RFID reader / writer, a mobile patrol RFID reader / writer, and the borrowing user's mobile terminal. The RFID reading event characterizes the situation where a target secure carrier is read by an RFID reader / writer at a specific location at a specific time. After the borrowing session is established, the borrowing user's mobile terminal initiates a location reporting task and maintains a data connection with the central management server, or silently establishes a communication connection at preset time intervals to periodically upload area location information. In some implementations, the borrowing user's mobile terminal can also immediately upload new area location information when it detects a change in its current area. The borrowing user's mobile terminal can determine its current area based on wireless LAN positioning, Bluetooth beacon identification, electronic fence identification, floor base station identification, or a combination thereof, and generate reporting data including mobile terminal identification information, borrowing user identity information, area location information, and a timestamp, which is then sent to the central management server. The area location information can be at least one of an area code, room number, floor area identifier, or electronic fence identifier. During the validity period of the borrowing session, the central management server continuously receives the RFID reading events and the regional location information output by the borrowing user's mobile terminal, and uses this as the basis for determining the current regional status of the target confidential carrier.

[0064] In one implementation, during the valid borrowing session, the central management server determines the current regional status of the target secure carrier based on the RFID reading event and the regional location information. Specifically, when the target secure carrier is read by an RFID reader at the storage location, its current regional status can be determined as "in storage"; when the target secure carrier is read by an RFID reader at a controlled entrance / exit with valid borrowing authorization, its current regional status can be determined as "borrowed" or "returned"; when the target secure carrier is in a borrowing session and the central management server receives the latest regional location information reported by the borrowing user's mobile terminal, the current regional status of the target secure carrier can be determined as "located in the corresponding region along with the borrowing user"; when a mobile patrol RFID reader reads the target secure carrier in a patrol area, the current regional status of the target secure carrier can be determined as "regional confirmation status" of being located in the corresponding patrol area. After determining the current regional status of the target secure carrier, the central management server updates the display status of the target secure carrier in the electronic map based on the current regional status. Specifically, when the target secure carrier is in storage, the icon corresponding to the target secure carrier is displayed in the area corresponding to its storage location on the electronic map. After the target secure carrier is legally borrowed through a controlled entrance / exit, the icon corresponding to the target secure carrier on the electronic map changes from the area corresponding to its storage location to the icon corresponding to its borrowed status. During the valid borrowing session, the central management server updates the icon corresponding to the target secure carrier on the electronic map to the corresponding area based on the latest area location information uploaded by the borrowing user's mobile terminal, thereby enabling the icon corresponding to the target secure carrier to be updated as the borrowing user's location changes. When a new RFID reading event is subsequently received, the central management server can also correct the display status on the electronic map based on the RFID reading event. If the central management server does not receive area location information uploaded by the borrowing user's mobile terminal within a preset time period, it can determine that the borrowing user's mobile terminal is in a disconnected state, and this situation is used as one of the input information for anomaly detection.

[0065] In one implementation, the central management server performs anomaly determination based on the matching relationship between the current area status and the authorized area information and the authorized time limit information, and outputs alarm information when an anomaly is determined. The alarm information can be output using audible and visual prompts, pop-up prompts, message pushes, SMS notifications, or a combination thereof. Further, the central management server obtains the actual inventory tag list and compares it with the list of tags that should be in inventory to determine the inventory result; wherein, the actual inventory tag list can be generated in batches by RFID reader / writer devices at the storage location, and the list of tags that should be in inventory can be generated based on the target confidential carrier file records that should currently be in inventory; the comparison result is used to determine the inventory status and for management personnel to verify.

[0066] Through the above methods, each target secure carrier possesses a digital identity foundation that can be uniquely represented by RFID tag identification information and corresponds to the archive information. During the borrowing period, the target secure carrier, the borrowing user, the borrowing user's mobile terminal, authorized area information, and authorized time limit information are linked in the same management link through the borrowing session association. Combined with RFID reading events and the periodic or triggered reporting of regional location information from the borrowing user's mobile terminal, the current regional status of the target secure carrier after leaving the fixed storage location is continuously updated, and the display status on the electronic map is updated synchronously. This enables the target secure carrier icon to switch from in-stock status to borrowed status and update according to the borrowing user's location using feasible technical means. At the same time, with the help of anomaly detection and inventory results, situations such as unauthorized transfer, overdue return, out-of-area violation, terminal disconnection, and discrepancies between accounts and actual items can be detected in a timely manner, thereby improving the real-time performance, visualization, and management accuracy of secure carrier management.

[0067] This embodiment establishes a borrowing session association between the target secure carrier, the borrowing user, the borrowing user's mobile terminal, and authorization information. By combining RFID reading events and regional location information, it determines, displays, identifies anomalies, and performs inventory checks on the target secure carrier's current regional status. This achieves integrated management of the secure carrier during its entry, exit, borrowing, transfer, and inventory processes. Compared to solutions that only record fixed-node operations, this embodiment enables regional-level dynamic monitoring, anomaly warnings, and inventory linkage after the secure carrier leaves its fixed storage location, thereby improving the real-time performance, visualization, and management accuracy of secure carrier management.

[0068] In this embodiment, the RFID reading event includes RFID tag identification information, reading location identification information, and reading time information;

[0069] The RFID reading events also include at least one of the following: storage location reading events generated by storage location RFID reading and writing devices, entrance and exit reading events generated by controlled entrance and exit RFID reading and writing devices, and patrol reading events generated by patrol RFID reading and writing devices.

[0070] In this embodiment, determining the current area status of the target secure carrier based on the RFID reading event and the area location information during the valid borrowing session includes:

[0071] If the read event at the storage location indicates that the target secure carrier is located at the storage location, it is determined that the target secure carrier is in a stored state.

[0072] When the entry / exit reading event indicates that the target secure carrier has passed through the controlled entry / exit and matches the borrowing authorization information, it is determined that the target secure carrier is in a borrowed or returned state.

[0073] If the borrowing session is valid and the borrowing user's mobile terminal outputs the area location information corresponding to the target area, it is determined that the target confidential carrier is in a state where it is located in the target area along with the borrowing user.

[0074] If the patrol reading event indicates that the target confidential carrier is located in the patrol area, it is determined that the target confidential carrier is in the area confirmation state of the corresponding patrol area.

[0075] In this embodiment, when determining the current area status of the target confidential carrier, the storage location read event and the entrance / exit read event have higher priority than the patrol read event, and the patrol read event has higher priority than the area location information.

[0076] In this embodiment, the area location information includes at least one of area code, room number, floor area identifier, and electronic fence identifier.

[0077] In this embodiment, an anomaly is determined when at least one of the following conditions exists:

[0078] The target secure carrier was accessed without authorization through a controlled entry / exit point;

[0079] The target secure carrier was not returned before the authorized time limit;

[0080] The regional location information indicates that the borrowing user carrying the target confidential carrier has entered an unauthorized area;

[0081] The borrowing user's mobile terminal did not output regional location information within a preset time period;

[0082] The area corresponding to the patrol reading event is inconsistent with the area represented by the area location information.

[0083] In this embodiment, if it is determined that the target confidential carrier has passed through the controlled entrance / exit without authorization, the method further includes: controlling the controlled entrance / exit to perform a locking operation or preventing a release operation.

[0084] In this embodiment, comparing the actual list of labels in stock with the list of labels that should be in stock to determine the inventory result includes:

[0085] The confidential carrier corresponding to the RFID tag identification information that exists in the list of tags that should be in the inventory but does not exist in the list of tags that are actually in the inventory is identified as the inventory loss carrier;

[0086] The confidential carrier corresponding to the RFID tag identification information that exists in the actual in-stock tag list but does not exist in the tag list that should be in stock is identified as the inventory surplus carrier;

[0087] The confidential carrier corresponding to the RFID tag identification information that exists simultaneously in both the actual in-stock tag list and the tag that should be in the stock list is identified as the carrier that matches the actual inventory.

[0088] In this embodiment, when the controlled entrance RFID reader detects that the target secure carrier has entered the controlled area, and the corresponding storage location RFID reader detects that the target secure carrier has been returned within a preset time window, the borrowing session association is terminated.

[0089] In one embodiment, an RFID-based real-time monitoring and inventory system for secure carrier access is provided, comprising:

[0090] RFID tags are attached to the target's secure carrier.

[0091] The intelligent management terminal is used to respond to a borrowing operation initiated by a borrowing user and obtain the borrowing user's identity information and borrowing authorization information;

[0092] RFID reader / writer devices are used to generate RFID read events;

[0093] Using the user's mobile terminal to output regional location information;

[0094] Electronic map display terminal;

[0095] The central management server is connected to the intelligent control terminal, the RFID reader / writer, the borrower's mobile terminal, and the electronic map display terminal, respectively, and is used for:

[0096] Establish the association between the RFID tag identification information and the target confidential carrier file information;

[0097] If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session association relationship is established between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information;

[0098] During the validity period of the borrowing session, the current regional status of the target secure carrier is determined based on the RFID reading event and the regional location information;

[0099] Update the display status of the target confidential carrier in the electronic map based on the current regional status;

[0100] Anomaly determination is performed based on the matching relationship between the current region status, the authorized region information, and the authorized time limit information, and an alarm message is output when an anomaly is determined.

[0101] Obtain the actual list of labels in stock, and compare the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results.

[0102] The specific implementation details of each module can be found in the above description of the limitations of the RFID-based real-time monitoring and inventory method for secure carriers, which will not be repeated here.

[0103] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. A method for real-time monitoring and inventory of secure carriers based on RFID, characterized in that, The method includes: Obtain the RFID tag identification information corresponding to the target confidential carrier, and establish the association between the RFID tag identification information and the file information of the target confidential carrier; In response to a borrowing operation initiated by a borrowing user, the system obtains the borrowing user's identity information and borrowing authorization information. If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session association relationship is established between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information; Acquire RFID reading events and the area location information output by the borrowing user's mobile terminal; During the validity period of the borrowing session, the current regional status of the target secure carrier is determined based on the RFID reading event and the regional location information; Update the display status of the target confidential carrier in the electronic map based on the current regional status; Anomaly determination is performed based on the matching relationship between the current region status, the authorized region information, and the authorized time limit information, and an alarm message is output when an anomaly is determined. Obtain the actual list of labels in stock, and compare the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results.

2. The method according to claim 1, characterized in that, The RFID reading event includes RFID tag identification information, reading location identification information, and reading time information; The RFID reading events also include at least one of the following: storage location reading events generated by storage location RFID reading and writing devices, entrance and exit reading events generated by controlled entrance and exit RFID reading and writing devices, and patrol reading events generated by patrol RFID reading and writing devices.

3. The method according to claim 2, characterized in that, Determining the current regional status of the target secure carrier based on the RFID reading event and the regional location information during the valid borrowing session includes: If the read event at the storage location indicates that the target secure carrier is located at the storage location, it is determined that the target secure carrier is in a stored state. When the entry / exit reading event indicates that the target secure carrier has passed through the controlled entry / exit and matches the borrowing authorization information, it is determined that the target secure carrier is in a borrowed or returned state. If the borrowing session is valid and the borrowing user's mobile terminal outputs the area location information corresponding to the target area, it is determined that the target confidential carrier is in a state where it is located in the target area along with the borrowing user. If the patrol reading event indicates that the target confidential carrier is located in the patrol area, it is determined that the target confidential carrier is in the area confirmation state of the corresponding patrol area.

4. The method according to claim 3, characterized in that, When determining the current regional status of the target confidential carrier, the storage location read event and the entrance / exit read event have higher priority than the patrol read event, and the patrol read event has higher priority than the regional location information.

5. The method according to claim 1, characterized in that, The area location information includes at least one of the following: area code, room number, floor area identifier, and electronic fence identifier.

6. The method according to claim 1, characterized in that, An anomaly is defined as the presence of at least one of the following conditions: The target secure carrier was accessed without authorization through a controlled entry / exit point; The target secure carrier was not returned before the authorized time limit; The regional location information indicates that the borrowing user carrying the target confidential carrier has entered an unauthorized area; The borrowing user's mobile terminal did not output regional location information within a preset time period; The area corresponding to the patrol reading event is inconsistent with the area represented by the area location information.

7. The method according to claim 6, characterized in that, If it is determined that the target confidential carrier has passed through the controlled access point without authorization, the method further includes: controlling the controlled access point to perform a locking operation or preventing a release operation.

8. The method according to claim 1, characterized in that, The step of comparing the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results includes: The confidential carrier corresponding to the RFID tag identification information that exists in the list of tags that should be in the inventory but does not exist in the list of tags that are actually in the inventory is identified as the inventory loss carrier; The confidential carrier corresponding to the RFID tag identification information that exists in the actual in-stock tag list but does not exist in the tag list that should be in stock is identified as the inventory surplus carrier; The confidential carrier corresponding to the RFID tag identification information that exists simultaneously in both the actual in-stock tag list and the tag that should be in the stock list is identified as the carrier that matches the actual inventory.

9. The method according to claim 1, characterized in that, If the RFID reader at the controlled entrance / exit detects that the target secure carrier has entered the controlled area, and the RFID reader at the corresponding storage location detects that the target secure carrier has been returned within a preset time window, the borrowing session relationship is terminated.

10. A real-time monitoring and inventory system for the entry and exit of secure carriers based on RFID, characterized in that, The system includes: RFID tags are attached to the target's secure carrier. The intelligent management terminal is used to respond to a borrowing operation initiated by a borrowing user and obtain the borrowing user's identity information and borrowing authorization information; RFID reader / writer devices are used to generate RFID read events; Using the user's mobile terminal to output regional location information; Electronic map display terminal; The central management server is connected to the intelligent control terminal, the RFID reader / writer, the borrower's mobile terminal, and the electronic map display terminal, respectively, and is used for: Establish the association between the RFID tag identification information and the target confidential carrier file information; If the borrower's identity authentication and borrowing authorization are both successful, a borrowing session association relationship is established between the RFID tag identification information, the borrower's identity information, the borrower's mobile terminal identification information, the authorized area information, and the authorized time limit information; During the validity period of the borrowing session, the current regional status of the target secure carrier is determined based on the RFID reading event and the regional location information; Update the display status of the target confidential carrier in the electronic map based on the current regional status; Anomaly determination is performed based on the matching relationship between the current region status, the authorized region information, and the authorized time limit information, and an alarm message is output when an anomaly is determined. Obtain the actual list of labels in stock, and compare the actual list of labels in stock with the list of labels that should be in stock to determine the inventory results.

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