Intelligent physical evidence tracing management system and method

Abstract

According to the intelligent material evidence tracing management system and method, an intelligent storage device adopts a material evidence cabinet / box to be provided with a storage area matching groove, a socket and a spin lock module, an imaging dual-mode monitoring module and a mirror monitoring module are deployed to conduct trajectory tracking, storage safety of physical material evidences is ensured, an RFID chip is arranged in a tamper-proof material bag and packaged in an intelligent material box, and the tamper-proof material bag is used for storing the physical material evidences. The box body communicates with a storage area socket through a bottom plug to control opening and closing, material evidence storage standardization is achieved in cooperation with a mobile terminal, the one-mirror monitoring module is in linkage with a camera through a T-shaped rod frame, opening and closing of equipment are controlled through an electromagnetic lock and fingerprint recognition, and multi-angle tracking of the camera is achieved by combining a stay wire hinge, and the whole scene of a storage cabinet and an investigation table is covered. According to the system, through full-chain digital transformation of material evidence storage, acquisition, monitoring and tracing, and in combination with the block chain and quantum encryption technology, judicial compliance of material evidence management is significantly improved, manual operation risks are reduced, and a reliable material evidence management scheme is provided for public security organization.

Description

Technical Field

[0001] The present invention relates to the field of physical evidence management and secure storage, and particularly to a physical evidence traceability management system integrating intelligent storage, on-site evidence collection, full-process traceability, and security audit. Background Art

[0002] Physical evidence traceability refers to recording and tracking information such as the source, transfer process, and status of physical evidence through technical means to ensure the traceability, verifiability, and reliability of the use and management of physical evidence in cases. It can help determine the source, whereabouts, and status of physical evidence and provide support for case investigation and trial. With the rapid increase in information technology crime cases and the widespread application of electronic evidence in judicial practice, traditional physical evidence management methods are difficult to meet the high standards of judicial practice for electronic evidence, and intelligent physical evidence traceability systems have emerged as the times require.

[0003] However, the gap between judicial requirements and technical reality has led to many problems in system application. For example, existing physical evidence management systems mostly have defects such as non-standard operation processes, incomplete records, easy data tampering, and imperfect device coordination. Especially during the process of physical evidence access and storage, traditional mechanical or semi-electronic methods are difficult to comprehensively record the operation details of the person in charge, and the complex on-site environment is prone to abnormal operation risks. The judicial field has extremely strict requirements for evidence, emphasizing authenticity, integrity, and continuity, while technical implementation often cannot perfectly meet these ideal standards. Research on electronic physical evidence points out that relevant laws in China stipulate that "original documents shall be submitted as documentary evidence. Original physical objects shall be submitted as physical evidence". The law hopes that the entire process from the generation to the presentation of electronic physical evidence can be completely recorded and verified, but it is difficult to achieve true full-process real-time monitoring at the technical level. This gap between ideal and reality makes intelligent physical evidence traceability systems often in a dilemma: either unable to fully meet judicial requirements or becoming too complex and expensive to achieve these requirements.

[0004] Therefore, there is an urgent need for a new type of intelligent physical evidence management system that seamlessly connects, is traceable, has multiple security certifications, and has an automatic warning function from collection, storage to extraction. Summary of the Invention

[0005] Aiming at the defects and problems existing in the prior art, the present invention aims to realize the intelligent and secure management of the entire life cycle of physical evidence, and ensure the transparency, security, and judicial compliance of physical evidence during the processes of collection, storage, transfer, and inspection through the full-process traceability of the storage device, so as to meet the strict requirements of public security organs and judicial institutions for physical evidence management.

[0006] The solution of the present invention to solve its technical problems is to adopt an intelligent physical evidence traceability management system, including an intelligent physical evidence storage device, an on-site evidence collection module, an evidence inspection table, a one-mirror monitoring module, a full-process traceability module, and a security audit module.

[0007] The intelligent evidence storage device includes an evidence cabinet and an evidence box. Both the evidence cabinet and the evidence box are configured with double-leaf cabinet doors or box doors, and a one-mirror monitoring module is integrated on the upper middle part; a layered storage structure, each layer includes a storage area matching slot, a storage area socket and a storage area lock module; a millimeter wave radar and infrared thermal imaging dual-mode monitoring component is deployed on the periphery, and the camera trajectory tracking of the one-mirror monitoring module is started after being triggered.

[0008] The on-site evidence collection module includes an anti-tampering evidence bag, an evidence box and a mobile terminal. The anti-tampering evidence bag has a built-in radio frequency identification (RFID) chip, which is placed in the evidence box; the evidence box is assembled in a storage area matching slot of the corresponding model, and a strip groove, a recessed area and a plug are provided at the bottom of the box body. The plug is located in the recessed area, and the plug communicates with the storage area socket to control the opening and closing of the lock in the box, so that the box cover and the box body are locked or unlocked; the strip groove cooperates with the storage area lock module to lock or unlock the evidence box; the mobile terminal is used to collect multi-angle images of physical evidence and generate standardized electronic documents.

[0009] The evidence inspection table is used for inspection and use of evidence. The base is equipped with at least one storage area slot, and the base is equipped with a mirror monitoring module.

[0010] The one-mirror surveillance module includes a T-shaped rod frame, a camera, an external electromagnetic lock, a handle, a fingerprint identifier and a pull wire. The distal end of the T-shaped rod frame is hinged to the box, cabinet or inspection table body through a distal hinge, the proximal end of the T-shaped rod frame is hinged with a swivel block, the camera is installed at the center of the swivel block, and the pull wire is hinged to the root of the distal hinge and the root of the swivel block; the proximal end of the T-shaped rod frame is locked to the box, cabinet or inspection table body through an external electromagnetic lock.

[0011] The full-process tracing module includes a physical evidence status visualization dashboard that displays the location and status of physical evidence in real time; a space-time trajectory map generation unit that integrates GPS / Beidou / UWB positioning data and surveillance images.

[0012] The security audit module includes a server deployed on the police intranet, which supports three-level network penetration query and blockchain evidence storage; a dynamic key system that binds quantum key distribution (QKD), biometrics and physical location; a multi-level approval process, and the trigger conditions are associated with smart contracts.

[0013] Furthermore, the one-mirror monitoring module includes a T-shaped rod frame, which is a T-shaped bistable mechanical arm with an integrated gyroscope attitude sensor, and the sensor is connected to the signal input end of the controller; a handle is installed on the outer side of the T-shaped rod frame, and the handle has a built-in multimodal biometric recognition unit; the controller analyzes the camera image in real time, switches to infrared thermal imaging mode when an unauthorized person is detected, and starts a trajectory prediction algorithm based on the LSTM neural network.

[0014] Furthermore, the storage area lock module includes a pressure sensor and an adaptive clamp system integrated at the bottom of the storage area slot. The adaptive clamp system includes an I-shaped lock bar driven by a motor, the initial position is horizontal, and when locked, it is vertical. When locked, the upper lock bar of the I-shaped lock bar is embedded in the side seam of the strip groove of the bottom plate of the evidence box.

[0015] Furthermore, the full-process tracing module records the multi-dimensional relationship between the persons involved, time, place and status of physical evidence based on a multi-source positioning data fusion algorithm based on Kalman filtering and a physical evidence association knowledge graph.

[0016] Furthermore, the dynamic key system in the security audit module adopts triple binding of timestamp + biometrics + physical location.

[0017] Furthermore, the interaction logic between the evidence box and the inspection table is that after the evidence box is placed in the slot in the storage area of ​​the inspection table, the plug establishes a safe channel. The lock inside the box can only be unlocked through biometric verification and electronic signature authorization. The entire process of opening the box is recorded by video and synchronized to the blockchain.

[0018] Furthermore, the environmental control unit of the evidence cabinet and / or box integrates temperature and humidity, VOC and electromagnetic interference monitoring sensors; when the threshold is exceeded, an audible and visual alarm is activated, and an emergency storage mode is linked.

[0019] Furthermore, the mobile terminal has a built-in optical image stabilization module and a macro lens, supports the collection of microscopic features of physical evidence, and automatically associates the blockchain hash value when generating electronic documents.

[0020] An intelligent physical evidence tracing management method includes the following steps: S1. Physical evidence collection is to collect physical evidence through an on-site evidence collection module, including using tamper-proof evidence bags and evidence boxes to store physical evidence, collecting multi-angle images of physical evidence through a mobile terminal and generating standardized electronic documents, and the electronic documents are associated with blockchain hash values; S2. Physical evidence storage is to put the evidence box into an evidence box, and then transfer and store it in an evidence cabinet, lock the evidence box through a storage area lock module, and the evidence cabinet or evidence box identifies the evidence box information through an RFID identification module and uploads it to a server; S3. Physical evidence access is through a single-lens surveillance The module verifies the identity of the person in charge of evidence storage and retrieval, who operates the T-bar frame to flip, and the server sends a dynamic key to unlock the electromagnetic lock to complete the physical evidence storage and retrieval operation; S4. The flow of physical evidence is to monitor the location of the evidence box in real time through the GPS / Beidou positioning unit to ensure that the physical evidence flow process is traceable; S5. The physical evidence inspection is to place the evidence box on the evidence inspection table, and unlock the lock inside the box through biometric verification and electronic signature authorization. The inspection process is recorded and synchronized to the blockchain; S6. The destruction of physical evidence is destroyed through a multi-level approval process, and the destruction process is recorded and the status of the physical evidence is updated to the blockchain for evidence storage.

[0021] Beneficial effects of the present invention:

[0022] 1. Transparency, security and judicial compliance of physical evidence management: The full process traceability of physical evidence can be achieved through storage devices, which significantly improves the transparency, security and judicial compliance of physical evidence management, meets the strict requirements of public security organs and judicial institutions for physical evidence management, and reduces the risks and operational complexity in physical evidence management. The security audit module combines quantum key distribution, biometrics and the physical location of the monitoring module to ensure the security of the key, and builds a full-chain trusted verification system of "collection end-storage end-court end" to meet the strict requirements of the People's Court for evidence review.

[0023] 2. Physical security and environmental stability of physical evidence storage: A layered storage structure, adaptive locking mechanism and environmental control unit are used to ensure the physical security and environmental stability of physical evidence during storage. The millimeter-wave radar and infrared thermal imaging dual-mode monitoring components monitor the status of physical evidence in real time. When the threshold is exceeded, the sound and light alarm is activated and the emergency preservation mode is linked to improve the reliability of physical evidence storage. The on-site evidence collection module combines tamper-proof evidence bags with built-in RFID chips to ensure the integrity and non-tamperability of physical evidence collection; the mobile terminal supports the collection of microscopic features of physical evidence, generates standardized electronic documents and associates blockchain hash values ​​to ensure the integrity and security of the data. During the storage of physical evidence, the one-mirror monitoring module realizes dynamic adjustment of the camera through the T-shaped bistable mechanical arm design, monitors the storage status of physical evidence in real time, and ensures the continuity of the surveillance video; unauthorized personnel detection and trajectory prediction algorithm based on LSTM neural network improve the accuracy of physical evidence tracing.

[0024] 3. Compliance and transparency of the inspection process: The compliance of the inspection process is ensured through biometric verification and electronic signature authorization; the video is recorded throughout the process and synchronized to the blockchain to ensure the transparency and non-tamperability of the inspection process. In the evidence collection stage, the one-mirror monitoring module assists in on-site evidence collection, and ensures the compliance and integrity of the collection process through real-time monitoring and recording; in the physical evidence extraction stage, the one-mirror monitoring module provides real-time monitoring and recording to ensure the compliance and transparency of the extraction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a block diagram of the sampling and access relationship of the intelligent physical evidence tracing management system of the present invention;

[0026] Figure 2 It is the data flow diagram of the whole process traceability module;

[0027] Figure 3 It is a work flow chart of the intelligent physical evidence tracing management system of the present invention;

[0028] Figure 4 It is a relationship diagram of evidence cabinets, evidence boxes and evidence boxes;

[0029] Figure 5 It is a relationship diagram of the evidence box and the storage area transfer lock module;

[0030] Figure 6 It is a schematic diagram of the upper side structure of the one-lens monitoring module;

[0031] Figure 7 It is a schematic diagram of the lower side structure of the one-lens monitoring module;

[0032] Figure 8 It is Figure 7 The enlarged structure diagram of part A in

[0033] Figure 9 It is Figure 7 The enlarged structure diagram of part B in

[0034] Reference numerals in the figure: 1 - evidence cabinet; 2 - evidence box; 3 - evidence box; 4 - inspection table; 5 - stepper motor; 6 - I-shaped lock bar; 7 - strip groove; 8 - T-shaped rod holder; 9 - distal hinge; 10 - swivel socket; 11 - swivel block; 12 - proximal swivel; 13 - wire groove; 14 - pull wire; 15 - wire pipe; 16 - electromagnetic lock buckle; 17 - handle; 18 - rotating shaft; 19 - camera; 20 - one-lens monitoring module. Specific implementation mode

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] Embodiment 1: An intelligent physical evidence traceability management system, as Figures 1-3 shown, the system includes an intelligent physical evidence storage device, a on-site evidence collection module, an evidence inspection table, a one-lens monitoring module, a full-process traceability module, and a security audit module. The system realizes full-process recording, traceability, and high-security management of physical evidence during the processes of collection, storage, transfer, and destruction through technologies such as electronic locks, dynamic key transmission, infrared thermal imaging, a one-lens monitoring module, and blockchain evidence storage.

[0037] Among them, the intelligent physical evidence storage device includes an evidence cabinet and an evidence box, as Figure 3 shown, both the evidence cabinet and the evidence box are configured with double-opening cabinet doors / box doors, and a one-lens monitoring module is integrated on the upper side of the middle part, with a layered storage structure, and each layer includes a storage area distribution slot, a storage area socket, and a storage area transfer lock module; a millimeter-wave radar and an infrared thermal imaging dual-mode monitoring component are deployed on the periphery, and after being triggered, the camera trajectory tracking of the one-lens monitoring module is started.

[0038] Specifically, the evidence cabinet 1 includes a double-opening cabinet door, and a one-lens monitoring module is installed on the upper side of the middle part of the double-opening cabinet door. When the T-shaped rod holder of the one-lens monitoring module is in the vertical position, it is locked by an electromagnetic lock outside the cabinet, and the cabinet camera faces directly forward. When the T-shaped rod holder is turned upward to the horizontal position, the cabinet camera faces downward.

[0039] An infrared monitoring component deployed around the physical evidence cabinet. When the controller inside the evidence cabinet receives the induction signal from the infrared detection component, it controls the camera of the one-lens monitoring module to turn on for trajectory tracking, and at the same time sends the face information to the server. The server conducts verification of the evidence access responsible person to determine whether it is the correct person. In case of a non-responsible person, an alarm is triggered. In case of the responsible person, according to the fingerprint of the handle of the T-shaped rod frame operated by the responsible person, the electromagnetic lock outside the cabinet is opened.

[0040] When the T-shaped rod frame is pushed upward and flipped 90 degrees, the pull wire pulls the rotating block to rotate, causing the cabinet body camera to gradually turn downward. After the T-shaped rod frame is pushed upward and flipped 90 degrees, the distal hinge of the one-lens monitoring module triggers the position sensor, and the server sends a dynamic key to the controller. The cabinet body controller opens the electromagnetic lock inside the cabinet according to the server instruction, and only then can the double-opening cabinet door be opened.

[0041] The storage area of the evidence cabinet 1 includes a physical evidence cabinet with an in-built RFID identification module, storage area slots, storage area sockets, storage area lock rotation modules, temperature and humidity control units, door lock monitoring units, and multi-state indicator lights. The physical evidence cabinet is connected to the server through the police internal network, and a hierarchical storage structure and an electronic scale are configured inside the cabinet. The storage area slots are used to match and package physical evidence boxes of corresponding models; the storage area sockets are docked with the concave area plugs at the bottom of the physical evidence boxes; the storage area lock rotation module installs a stepping motor at the center of the bottom of the storage area slots, and the rotating shaft of the stepping motor installs an I-shaped lock bar. As Figure 4 shown, the I-shaped lock bar includes upper and lower lock bars and a middle connecting part. The initial position of the I-shaped lock bar is horizontal, its lower lock bar rotates inside the bottom plate of the storage area slot, and its upper lock bar is exposed above the bottom plate. The upper lock bar of the I-shaped lock bar can be matched and packaged with the strip groove under the bottom plate of the physical evidence box, and after the upper lock bar rotates 90 degrees, it can be stuck in the side slot of the strip groove of the bottom plate of the physical evidence box to lock the physical evidence box. The environmental control unit of the physical evidence cabinet includes integrated temperature and humidity, VOC, and electromagnetic interference monitoring sensors; when the threshold is exceeded, an audible and visual alarm is activated, and an emergency storage mode is linked; the cabinet body adopts an electromagnetic shielding design.

[0042] The evidence box 2 includes a double-leaf door, a monitoring module is installed on the upper middle side of the double-leaf door, and a GPS / Beidou positioning unit is configured in the box. The infrared monitoring component is deployed on the periphery of the evidence box. When the controller in the evidence box receives the sensing signal of the infrared detection component, it controls the camera of the monitoring module to start tracking the trajectory, and sends the facial information to the server at the same time. The server confirms whether the person in charge of evidence storage and retrieval is the correct person in charge based on the advance application of the person in charge of evidence storage and retrieval, and alarms if the person in charge is not the person in charge. If the person in charge is the person in charge, the electromagnetic lock outside the box is opened according to the fingerprint of the handle of the person in charge operating the T-shaped rod frame. When the T-shaped rod frame is pushed upward and flipped 90 degrees, the pull wire pulls the rotating block to rotate, so that the box camera remains forward or downward. When the T-shaped rod frame is pushed upward and flipped 90 degrees, the remote hinge triggers the position sensor, and the server sends a dynamic key to the controller. The box controller opens the electromagnetic lock in the box according to the server instruction, and the double-leaf door can be opened at this time.

[0043] The storage area of ​​the evidence box includes a built-in RFID identification module, a storage area slot, a storage area socket, and a storage area lock module. The storage area lock module includes an integrated pressure sensor and an adaptive clamp system at the bottom of the storage area slot.

[0044] The on-site evidence collection module includes a tamper-proof evidence bag and an evidence box. The tamper-proof evidence bag has a built-in radio frequency identification (RFID) chip, and the tamper-proof evidence bag is placed in the evidence box. Each evidence box is equipped with an evidence bag to ensure the uniqueness of the radio frequency chip in the evidence box. The evidence box is installed in the storage area matching slot of the corresponding model. The evidence box includes a box body, a box cover and a box lock. The box lock is used to lock the box cover on the upper side of the box body. The bottom of the box body is provided with a bar groove, a concave area and a plug. The plug is located in the concave area. The plug communicates with the storage area socket (of the cabinet, box or inspection table) to control the opening and closing of the box lock, so that the box cover and the box body are locked or unlocked; the bar groove cooperates with the storage area lock module to lock or unlock the evidence box. The mobile terminal is used to collect multi-angle images of physical evidence and generate standardized electronic documents. The mobile terminal has a built-in optical image stabilization module and a macro lens, supports the collection of microscopic features of physical evidence, automatically associates the blockchain hash value when generating electronic documents, and uses a quantum computing attack-resistant protocol for data encryption transmission.

[0045] The evidence inspection table is used for trial or evidence extraction and analysis. The evidence box must be placed on the inspection table before it can be opened and monitored. The evidence inspection table 4 includes a base, and a mirror monitoring module is installed on the upper side of the base. At least one storage area slot is provided on the upper side of the base for matching the evidence box of the corresponding model. The interaction logic between the evidence box and the inspection table is that after the evidence box is placed in the storage area slot of the inspection table, the plug establishes a secure channel. Biometric verification and electronic signature authorization are required to unlock the lock in the box. The entire process of opening the box records 8K@60fps HDR video and synchronizes it to the blockchain.

[0046] The one-lens monitoring module 20 is as follows Figures 6-9 shown, and it includes a T-shaped rod frame 8, a distal hinge 9, a proximal rotating sleeve 12, a rotating block 11, a camera 19, an external electromagnetic lock, a handle 16, a fingerprint identifier, a controller, a wire rope 14, etc. The T-shaped rod frame 8 is a T-shaped bistable robotic arm integrated with a gyroscope attitude sensor, and this sensor is connected to the signal input end of the controller; the distal end of the T-shaped rod frame 8 is connected with a distal hinge 9, and the distal end of the T-shaped rod frame 8 is hinged to the box or cabinet or the main body of the inspection table through the distal hinge 9, and the T-shaped rod frame 8 can rotate around the distal hinge 9, and a handle 17 is fixed on the upper side of the T-shaped rod frame 8. As Figure 4 shown, the distal hinge 9 is fixed on the upper side of the middle part of the double-leaf door of the exhibit cabinet 1 or the exhibit box 2. A rotating sleeve seat 10 is fixed at the proximal end of the T-shaped rod frame 8, a rotating shaft 18 is fixed in the rotating sleeve seat 10, a rotatable proximal rotating sleeve 12 is sleeved in the middle of the rotating shaft 18, a torsion spring (not shown in the figure) is sleeved in the inner cavity of the rotating sleeve seat 10, a rotating block 11 is vertically fixed on the upper side of the middle part of the proximal rotating sleeve 12, and the torsion spring urges the rotating block 11 to rotate upward to the limit position. A wire groove 13 is arranged on the lower side of the middle part of the proximal rotating sleeve 12, and at the same time, a wire pipe 15 is fixed at the bottom of the T-shaped rod frame 8. The wire rope 14 is sleeved in the inner cavity of the wire pipe 15 and the groove of the wire groove 13. The head end of the wire rope 14 is fixed at the root of the rotating block 11, and the tail end of the wire rope 14 is fixed at the root of the distal hinge 9 and is located at an appropriate position below the axis of the distal hinge 9, so that when the handle 17 is lifted upward and flipped 90 degrees, the wire rope 14 will pull the rotating block 11 to rotate 180 degrees (or other appropriate angles). The proximal end of the T-shaped rod frame is locked with the box or cabinet or the main body of the inspection table through an external electromagnetic lock. The handle is internally provided with a multi-modal biometric unit (such as fingerprint, palm vein or iris). The identification unit and the camera are respectively connected to the signal input of the controller, and the control end of the controller is connected to the external electromagnetic lock. The controller communicates with the server through a communication module. When the T-shaped rod frame is in the initial position, the camera faces forward. When the T-shaped rod frame is flipped upward 90 degrees, the wire rope pulls the rotating block, so that the camera always faces forward when it flips.

[0047] During the whole process before and after the person in charge accesses the evidence, it can be recorded and archived through the one-lens tracking method, without the need for multi-screen cooperation or splicing, ensuring the continuity and reliability of the monitoring video. The controller analyzes the camera image in real time. When an unauthorized person is detected, it switches to the infrared thermal imaging mode and starts the trajectory prediction algorithm based on the LSTM neural network. Ensure that the corresponding person in charge can be traced. The sealed state of the evidence is ensured by the GPS / Beidou positioning of the evidence box or evidence cabinet, so that the whole process can trace, track and record the evidence.

[0048] The full-process traceability module includes a physical evidence status visualization dashboard that displays the location and status of physical evidence in real time, and a spatio-temporal trajectory map generation unit that fuses GPS / Beidou / UWB positioning data and surveillance images. This module is based on a multi-source positioning data fusion algorithm using Kalman filtering; a physical evidence association knowledge graph that records the multi-dimensional relationships among involved persons, time, location, and the status of physical evidence. The data flow of the full-process traceability module is as Figure 9 shown.

[0049] The security audit module includes a server deployed on the police internal network, which supports three-level network penetration query and blockchain evidence storage; a dynamic key system that binds quantum key distribution (QKD), biometric features, and physical location; and the triggering conditions of a multi-level approval process are associated with smart contracts. The dynamic key system of this module uses triple binding of timestamp + biometric feature + physical location, and the server is configured with dual redundant power supplies and an offline emergency mode.

[0050] The above intelligent physical evidence traceability management system realizes the full-life-cycle management of physical evidence through the collaborative design of intelligent storage devices, full-process traceability modules, and quantum security systems. The system adopts dual-mode monitoring, an adaptive locking mechanism, and multi-source positioning fusion technology to ensure the security of physical evidence storage; combines blockchain evidence storage and knowledge graph technology to construct an immutable judicial evidence chain; and meets the requirements of GA / T 1182-2014 for physical evidence preservation through dynamic key binding and multi-modal biometric identification. The present invention can meet the actual needs of real-time tracking, intelligent warning, and judicial compliance in physical evidence management, form a deep defense from physical protection to the cryptographic system, and construct a full-chain trusted verification system of "collection end - storage end - court end" to meet the review requirements of the people's court for evidence.

[0051] Before using the intelligent physical evidence tracing management system, the equipment, server and personnel authority deployment are first carried out. The equipment deployment is to install the intelligent physical evidence cabinet at a fixed coordinate position, configure the portable physical evidence box, and ensure and complete the deployment of the peripheral millimeter wave radar and infrared thermal imaging components. Prepare the on-site evidence collection module (tamper-proof evidence bag, evidence box, mobile terminal) and complete the equipment calibration. Deploy the evidence inspection station in advance at the place where the evidence is required for on-site demonstration to ensure that it is compatible with the storage area slots of the physical evidence cabinet and physical evidence box. Install a mirror monitoring module in the evidence cabinet, evidence box and inspection station to ensure the normal operation of components such as cameras, fingerprint readers, and pull wires. The system configuration includes configuring the server, deploying the police intranet, ensuring the network connection between the server and the physical evidence cabinet, physical evidence box, inspection station, and mobile terminal; configuring the blockchain evidence storage system to ensure data encryption transmission and storage; configuring the dynamic key system, binding quantum key distribution (QKD), biometrics and physical location; configuring the full-process traceability module, including the physical evidence status visualization dashboard, the space-time trajectory map generation unit, and the physical evidence association knowledge map. Personnel authority setting is to assign biometric (fingerprint, palm vein, iris) authority to the person in charge of evidence storage and retrieval. Set up a multi-level approval process to ensure that the operation meets judicial compliance requirements.

[0052] When collecting physical evidence, the intelligent physical evidence traceability management system follows the collection process of start → physical evidence collection → evidence bag placed in evidence box → multi-angle image collection → electronic document generation → data upload → server processing → end. Use tamper-proof evidence bags to collect physical evidence, and lock the evidence bag after it is assembled in the initially opened evidence box to ensure that the built-in RFID chip in the evidence bag can be detected outside the evidence box. In the process of placing the evidence bag into the evidence box, it is necessary to collect multi-angle images and microscopic features of the physical evidence through a mobile terminal; generate standardized electronic documents, automatically associate blockchain hash values, and ensure that the data cannot be tampered with by docking the evidence box with the storage area socket through the storage area matching slot to complete the locking of the lock inside the box; upload the collected physical evidence images, electronic documents, and RFID information to the server through the mobile terminal. The server synchronizes the data to the blockchain evidence storage system to ensure data security.

[0053] When the intelligent evidence tracing management system stores evidence, the evidence box is stored by placing the evidence box into the storage area slot of the evidence box and locking the evidence box through the storage area lock module. The GPS / Beidou positioning unit of the evidence box uploads the location information to the server in real time; the evidence cabinet is stored by taking the evidence box out of the evidence box and placing it into the storage area slot of the evidence cabinet and locking the evidence box through the storage area lock module. The RFID identification module of the evidence cabinet automatically identifies the RFID information of the evidence bag in the evidence box and uploads it to the server. The environmental control unit monitors temperature, humidity, VOC and electromagnetic interference, and activates the sound and light alarm when the threshold is exceeded.

[0054] When the intelligent physical evidence tracing management system performs physical evidence storage and access operations, the person in charge verifies his identity through the fingerprint reader of the one-mirror monitoring module. After the server confirms the identity, it sends the dynamic key to the controller to unlock the external electromagnetic lock; the dynamic key generation and binding process is start → identity authentication request → biometric identification → location verification → timestamp generation → quantum key distribution → key binding → key transmission → unlocking operation → end. The person in charge operates the T-shaped bar frame to flip 90 degrees, pulls the turn block with the pull wire, and the camera faces downward. After the server verifies the status of the T-shaped bar frame, it sends the dynamic key to the controller to unlock the internal electromagnetic lock. The person in charge opens the double-leaf cabinet door or box door to complete the physical evidence storage and access operation. The operation record is the one-mirror monitoring module that records the access process in its entirety, and the video is synchronized to the server. The server analyzes the trajectory through the LSTM neural network to ensure compliance with the operation. The transfer of physical evidence is to transfer the evidence box from the evidence cabinet to the evidence box, or from the evidence box to the inspection table. The status of the evidence box is confirmed by the RFID identification module to ensure that the transfer process is traceable; positioning and monitoring is that the GPS / Beidou positioning unit of the evidence box uploads the location information in real time, and the one-mirror monitoring module records the transfer process to ensure the transparency of the status of the physical evidence.

[0055] When conducting physical evidence inspection, the workflow of the inspection station is start → evidence box placement → security channel establishment → biometric verification → electronic signature authorization → unlocking the lock inside the box → opening the box and inspection → full recording → data upload → end. The evidence box is placed in the storage area slot of the inspection station, and a security channel is established through the storage area socket. After biometric verification and electronic signature authorization, the lock inside the box is unlocked. The whole process of opening the box is recorded with 8K@60fps HDR video and synchronized to blockchain evidence. The environmental control unit of the inspection station monitors the status of physical evidence to ensure the integrity of physical evidence. The inspection results generate electronic documents, which are automatically associated with the blockchain hash value. The data is uploaded to the server and synchronized to the full-process traceability module. The blockchain evidence is associated with the smart contract as physical evidence data generation → data encryption → hash calculation → block creation → smart contract triggering → contract execution → data storage → data query. The destruction of physical evidence includes submitting an application for destruction of physical evidence and going through a multi-level approval process. After approval, the server sends a destruction instruction to the evidence cabinet or evidence box, and records the destruction process through a one-mirror monitoring module to ensure compliance with the operation. After the destruction is completed, the status of the physical evidence is updated to "destroyed" and synchronized to the blockchain for evidence storage.

[0056] During system maintenance and auditing, the intelligent physical evidence traceability management system regularly checks the hardware status of the physical evidence cabinet, physical evidence box, and inspection table, and updates the dynamic key system to ensure security. The physical evidence status, spatiotemporal trajectory, and associated knowledge graph are viewed through the full-process traceability module, and the data integrity is verified through the blockchain evidence storage system. Emergency handling is to enable the network disconnection emergency mode to ensure that the system can still operate normally in the case of network disconnection, and synchronize data to the server after the network is restored. Through the above steps, the intelligent physical evidence traceability management system can realize the management of the entire life cycle of physical evidence, ensuring the transparency, security, and judicial compliance of the collection, storage, circulation, inspection, and destruction of physical evidence.

[0057] The above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. For example, based on the above system, a "collection, storage, and inspection" trinity digital twin model is established, and a spatiotemporal correlation index is established with the temperature and humidity time series data in the storage device and the HDR video frame of the inspection station.

Claims

1. An intelligent physical evidence tracing management system, characterized in that: include: (1) An intelligent physical evidence storage device, including a physical evidence cabinet and a physical evidence box, wherein the physical evidence cabinet and the physical evidence box are both configured with: a double-leaf cabinet door or a box door, with a single-lens monitoring module integrated in the middle upper side; a layered storage structure, with each layer including a storage area slot, a storage area socket, and a storage area lock module; and a millimeter-wave radar and infrared thermal imaging dual-mode monitoring component deployed on the periphery, which activates the camera trajectory tracking of the single-lens monitoring module after being triggered; (2) A scene evidence collection module, including an anti-tamper evidence bag, an evidence box, and a mobile terminal. The anti-tamper evidence bag has a built-in radio frequency identification (RFID) chip, which is placed in the evidence box; the evidence box is assembled in a storage area slot of a corresponding model, and a bar groove, a recessed area, and a plug are provided at the bottom of the box body. The plug is located in the recessed area, and the plug communicates with the storage area socket to control the opening and closing of the lock in the box, so that the box cover and the box body are locked or unlocked; the bar groove cooperates with the storage area lock module to lock or unlock the evidence box; the mobile terminal is used to collect multi-angle images of physical evidence and generate standardized electronic documents; (3) Evidence inspection table, used for evidence inspection and use, with at least one storage area slot configured on the base and a mirror monitoring module installed on the base; (4) A one-mirror surveillance module, comprising a T-shaped rod frame, a camera, an external electromagnetic lock, a handle, a fingerprint reader and a pull wire, wherein the distal end of the T-shaped rod frame is hinged to the box, cabinet or inspection platform body through a distal hinge, the proximal end of the T-shaped rod frame is hinged to a rotating block, the camera is mounted at the center of the rotating block, and the pull wire is hinged to the root of the distal hinge and the root of the rotating block; the proximal end of the T-shaped rod frame is locked with the box, cabinet or inspection platform body through an external electromagnetic lock, and when the T-shaped rod frame is turned up 90 degrees, the pull wire pulls the rotating block so that the camera is always facing the front side; (5) Full-process tracing module, including a visual dashboard for physical evidence status, which displays the location and status of physical evidence in real time; a spatiotemporal trajectory map generation unit, which integrates GPS / Beidou / UWB positioning data and surveillance images; (6) Security audit module, including a server deployed on the police intranet, supporting three-level network penetration query and blockchain evidence storage; a dynamic key system that binds quantum key distribution (QKD), biometrics and physical location; and a multi-level approval process with trigger conditions associated with smart contracts.

2. The system according to claim 1, characterized in that The one-mirror monitoring module includes a T-shaped rod frame, which is a T-shaped bistable mechanical arm with an integrated gyroscope attitude sensor, and the sensor is connected to the signal input end of the controller; a handle is installed on the outer side of the T-shaped rod frame, and the handle has a built-in multimodal biometric recognition unit; the controller analyzes the camera image in real time, switches to infrared thermal imaging mode when unauthorized personnel are detected, and starts a trajectory prediction algorithm based on the LSTM neural network.

3. The system according to claim 1, characterized in that The storage area lock module includes an integrated pressure sensor and an adaptive clamp system at the bottom of the storage area slot.

4. The system according to claim 3, characterized in that The adaptive clamp system includes an I-shaped locking bar driven by a motor, which is initially in a horizontal position and in a vertical position when locked. When locked, the upper locking bar of the I-shaped locking bar is embedded in the side seam of the strip groove of the bottom plate of the evidence box.

5. The system according to claim 1, characterized in that The full-process tracing module is based on a multi-source positioning data fusion algorithm based on Kalman filtering and a knowledge graph associated with physical evidence, and records the multi-dimensional relationship between the persons involved, time, location and status of physical evidence.

6. The system according to claim 1, characterized in that The dynamic key system in the security audit module adopts triple binding of timestamp + biometrics + physical location.

7. The system according to claim 1, characterized in that The interaction logic between the evidence box and the inspection table is that after the evidence box is placed in the slot in the storage area of ​​the inspection table, a plug is used to establish a secure channel. The lock inside the box can only be unlocked after biometric verification and electronic signature authorization. The entire process of opening the box is recorded in video and synchronized to the blockchain.

8. The system according to claim 1, characterized in that The environmental control unit of the evidence cabinet and / or box integrates temperature and humidity, VOC and electromagnetic interference monitoring sensors; when the threshold is exceeded, an audible and visual alarm is activated, and an emergency storage mode is linked.

9. The system according to claim 1, characterized in that The mobile terminal has a built-in optical image stabilization module and a macro lens, supports the collection of microscopic features of physical evidence, and automatically associates the blockchain hash value when generating electronic documents.

10. An intelligent physical evidence tracing management method, characterized in that: The following steps are involved: S1. Physical evidence collection: Collect physical evidence through the on-site evidence collection module, including using tamper-proof evidence bags and evidence boxes to store physical evidence, collecting multi-angle images of physical evidence through mobile terminals and generating standardized electronic documents, and linking the electronic documents to the blockchain hash value; S2. Evidence storage: Put the evidence box into the evidence box, and then transfer it to the evidence cabinet. Lock the evidence box through the storage area lock module. The evidence cabinet or evidence box identifies the evidence box information through the RFID identification module and uploads it to the server. S3. Evidence storage and access: The identity of the person in charge of evidence storage and access is verified through a one-mirror surveillance module. The person in charge operates the T-shaped rod frame to flip, and the server sends a dynamic key to unlock the electromagnetic lock to complete the evidence storage and access operation; S4. Evidence circulation: The location of the evidence box is monitored in real time through the GPS / Beidou positioning unit to ensure that the evidence circulation process is traceable; S5. Physical evidence inspection: Place the evidence box on the evidence inspection table, unlock the lock inside the box through biometric verification and electronic signature authorization, and the entire inspection process is recorded and synchronized to the blockchain; S6. Destruction of physical evidence: Physical evidence is destroyed through a multi-level approval process. The entire destruction process is recorded and the status of the physical evidence is updated to the blockchain for storage.

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