Display device, interaction system and supervision method applied to supervision place

Abstract

The invention relates to the technical field of information interaction equipment, in particular to display equipment applied to a supervision place, an interaction system and a supervision method. The display device comprises a display screen body internally provided with an installation cavity and a control module, and a first fixing band and a second fixing band which are connected to the two sides of the display screen body respectively, and anti-shearing detection loops electrically connected with the control module are embedded in the first fixing band and the second fixing band. A fixing sleeve is fixedly arranged at the tail end of the first fixing belt, and a locking mechanism is arranged in the fixing sleeve. The second fixing belt is provided with a plurality of fixing holes, the tail end of the second fixing belt can be inserted into the fixing sleeve and is locked with the fixing holes in an embedded mode through a locking mechanism, and therefore the device forms a closed-loop structure which cannot be disassembled reversely. And a vital sign detection module for acquiring the sign information of the user is also arranged in the fixing sleeve. According to the scheme, the problems that existing equipment is easy to disassemble and single in function are solved, and the safety level and management efficiency of a supervision place are improved.

Description

Technical Field

[0001] This invention relates to the field of information interaction equipment technology, and more specifically to a display device, interaction system, and monitoring method for use in regulatory sites. Background Technology

[0002] Currently, information exchange and personnel supervision in detention facilities mainly rely on public display screens deployed in fixed areas for information dissemination, supplemented by manual patrols and inspections. However, public screens cannot provide personalized information delivery and interaction, and detainees must move to the screen to access information, which is inefficient and makes it difficult to ensure information delivery.

[0003] In terms of personnel supervision, vital sign detection, location tracking and behavior monitoring rely on frequent manual inspections and inquiries by management personnel. This not only consumes a lot of manpower, but is also highly subjective and lacks real-time performance, making it difficult to achieve immediate detection and early warning of sudden illnesses, abnormal behaviors or safety hazards. Identity verification also mostly adopts traditional manual verification or simple card methods, which poses risks of impersonation and management loopholes. The management model leads to a disconnect between information flow and supervision process. Summary of the Invention

[0004] The purpose of this invention is to provide a display device for use in regulatory sites, which can improve the security level and management efficiency of regulatory sites.

[0005] In a first aspect, embodiments of this application provide a display device for use in regulatory facilities, comprising:

[0006] The display screen body has a mounting shell on its back, and a control module is installed inside the mounting shell;

[0007] A first fixing strap and a second fixing strap, one end of the first fixing strap and the second fixing strap are respectively fixedly connected to both sides of the display screen body. Each of the first fixing strap and the second fixing strap is embedded with an anti-cutting detection circuit, and the anti-cutting detection circuit is electrically connected to the control module disposed in the mounting shell.

[0008] A fixing sleeve is fixedly disposed at the end of the first fixing band;

[0009] A locking mechanism is provided inside the fixing sleeve; wherein, the second fixing band has a plurality of fixing holes, and the end of the second fixing band can be inserted into the fixing sleeve so that the locking mechanism engages and locks with the fixing holes;

[0010] The vital signs detection module is used to obtain the user's vital signs information.

[0011] In some embodiments, the locking mechanism includes:

[0012] A mechanical lock assembly, wherein the mechanical lock assembly is a one-way telescopic pin latch structure that can only be unlocked with a special key;

[0013] An electronic lock assembly, comprising an electromagnetic detection unit controlled by the control module, for detecting a locking signal in a closed-loop state.

[0014] In some embodiments, the vital signs detection module includes a first vital signs detection unit disposed within the fixing sleeve. The first vital signs detection unit includes a vein image detection unit disposed on the inner wall of the fixing sleeve for contact with the user's wrist skin. The vein image detection unit is electrically connected to a control module within the display screen body.

[0015] In some embodiments, the vital signs detection module further includes a second vital signs detection unit. A sensor window is provided on the back of the display screen body, and the second vital signs detection unit is disposed inside the window. The second vital signs detection unit includes at least an optical sensing unit and an electrophysiological sensing unit.

[0016] In some embodiments, it also includes:

[0017] A wireless charging receiver coil is sealed inside the mounting housing and electrically connected to an internal power source.

[0018] The positioning communication module is located inside the mounting housing;

[0019] The interaction module includes a display screen located on the front of the main display screen body, and a camera unit and a microphone unit integrated into the side wall or the front.

[0020] Secondly, this application provides an interactive system for use in regulatory facilities, comprising:

[0021] At least one display device as claimed in any one of claims 1 to 5;

[0022] At least one wireless charging dock;

[0023] The central management center is communicatively connected to the display device.

[0024] In some embodiments, the central management center includes:

[0025] The data receiving module is used for communication connection with the control module to receive device status data and vital sign data uploaded by the vital sign detection module, and to perform real-time preprocessing.

[0026] The identity authentication module is used to verify the identity of personnel based on the data obtained by the data receiving module;

[0027] The early warning analysis module is used to generate graded alarms based on the received device status data and vital signs data.

[0028] In some embodiments, it also includes:

[0029] Multiple regional interactive terminals are deployed in various functional areas within the regulatory site, and are communicatively connected to the central management center and the display devices, for authentication and data interaction with the display devices that enter their communication range.

[0030] Thirdly, this application provides a monitoring method for use in regulatory facilities, based on the aforementioned display device or interactive system, comprising:

[0031] Insert the end of the second fixing strap into the fixing sleeve, and the device is irreversibly locked to the user's wrist by the locking mechanism;

[0032] During or after the locking process, the vital signs detection module continuously and / or intermittently collects the user's vital signs data.

[0033] Continuously report the device's location information, vital signs data, and the on / off status of the anti-shear detection circuit;

[0034] An alarm is sent when abnormal information is detected, wherein the abnormal information includes at least the user's location being outside a predetermined range, the user's vital signs being abnormal, and the anti-cutting detection circuit being disconnected.

[0035] In some embodiments, the method further includes:

[0036] The collected vital sign data is compared with the pre-stored information to complete the identity binding for the first wearer;

[0037] During identity verification, the vital signs data are collected again for real-time comparison to complete identity authentication.

[0038] The beneficial effects of this application are as follows: Through the integrated sealed housing body without exposed fasteners, the first and second fixing straps with embedded anti-shear detection circuits, and the locking mechanism located within the fixing sleeve and capable of engaging and locking with the fixing holes, the risk of unauthorized removal of the equipment is significantly reduced. In terms of functional integration and monitoring efficiency, by integrating vital sign detection modules such as the vein image detection unit into the fixing sleeve, and placing modules such as the optical sensing unit on the back of the display screen, multi-point, continuous, and imperceptible monitoring of the user's vital signs is achieved, greatly improving the timeliness of health risk warnings. Combined with the positioning and communication module, synchronous monitoring and linked alarms of personnel location and physiological status are realized. This integrated design combines information interaction, identity authentication, security alarms, and health monitoring, significantly reducing the burden on supervisory personnel and achieving proactive, precise, and intelligent supervision, comprehensively improving the security level and management efficiency of supervised locations. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the display device in this invention;

[0040] Figure 2 This is a schematic diagram of the display device from another perspective in this invention;

[0041] Figure 3 This is a block diagram of the interactive system of the present invention;

[0042] Figure 4 This is a flowchart of the monitoring method in this invention.

[0043] Reference numerals: 1. Display screen body; 2. Mounting shell; 3. First fixing strap; 31. Fixing sleeve; 4. Second fixing strap; 41. Fixing hole; 5. Locking mechanism; 6. Vital signs detection module; 61. First vital signs detection unit; 62. Second vital signs detection unit. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0047] In the description of the embodiments of the present invention, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first," "second," and "third" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0048] Furthermore, the use of terms such as "horizontal," "vertical," and "sag" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0049] In view of this, the first aspect of this application provides a display device for use in regulatory sites.

[0050] Example 1

[0051] Reference Figure 1 and Figure 2 This application provides a display device for use in a regulatory facility, including a display screen body 1, a first fixing strap 3, a second fixing strap 4, a fixing sleeve 31, a locking mechanism 5, and a vital signs detection module 6.

[0052] The back of the display body 1 is provided with a mounting shell 2, and the control module is installed inside the mounting shell 2. The display body 1 and the control module are the core structure of the display device. The mounting shell 2 has a completely sealed hollow mounting cavity. The mounting shell 2 can be made of aluminum alloy material in one piece to eliminate structural weak points caused by splicing or welding, and can protect the internal components when subjected to high-intensity impact. The surface of the mounting shell 2 is treated with micro-arc oxidation to form a hard ceramic oxide film, which has high hardness, high wear resistance and excellent insulation performance.

[0053] The main display screen 1 is embedded in the mounting housing 2. The main display screen 1 uses a touch-screen LCD display that supports operation with wet hands or while wearing gloves. The control module is installed inside the mounting housing 2 and electrically connected to the main display screen 1. The control module uses integrated packaging technology to integrate electronic devices such as the central processing unit, graphics processor, memory, and storage into a single chip package to reduce physical size and improve vibration and shock resistance.

[0054] One end of the first fixing band 3 and the second fixing band 4 are respectively fixedly connected to both sides of the display screen body 1. Both the first fixing band 3 and the second fixing band 4 are embedded with anti-cutting detection circuits, which are electrically connected to the control module set in the mounting shell 2. The near ends of the first fixing band 3 and the second fixing band 4 are fixedly connected to both sides of the mounting shell 2 by stainless steel pins. The pins adopt an anti-reverse design and cannot be disassembled in reverse once installed.

[0055] The first fixing band 3 and the second fixing band 4 adopt a multi-layer composite structure. The inner layer is made of medical-grade hypoallergenic silicone, which provides a comfortable wearing experience and ensures electrical contact for biosignal acquisition. The middle layer embeds an anti-shear detection circuit, which consists of multiple independent molybdenum alloy filaments wound in a spiral shape and encapsulated in a flexible polyimide substrate to form a redundant monitoring network. The outermost layer is a high molecular weight polyethylene fiber layer, which provides extremely high tensile and shear strength.

[0056] The two ends of the anti-cut detection circuit are electrically connected to the control module inside the mounting cavity of the display body 1 through gold-plated spring pins, so that the first fixing band 3 and the second fixing band 4 can move within a small range without damaging the electrical connection.

[0057] The fixing sleeve 31 is fixedly mounted at the end of the first fixing band 3, serving as an integrated platform for locking and advanced sensing functions. The base of the fixing sleeve 31 is integrally connected to the end structure of the first fixing band 3 using a metal injection molding process, ensuring structural integrity and robustness. Multiple precision structural components are embedded within the fixing sleeve 31 using in-mold injection molding technology, forming an internal space for installing the integrated components. The outer contour of the fixing sleeve 31 is ergonomically optimized to ensure a close fit to the wrist during use without compressing the radial and ulnar arteries, thereby guaranteeing unobstructed blood circulation and the quality of vital sign signal acquisition.

[0058] The locking mechanism 5 is located inside the fixed sleeve 31. The second fixing band 4 has multiple fixing holes 41. The end of the second fixing band 4 can be inserted into the fixed sleeve 31 so that the locking mechanism 5 is engaged and locked with the fixing holes 41. The locking mechanism 5 is completely built into the fixed sleeve 31 and adopts an electromechanical dual redundancy locking structure.

[0059] In some embodiments, the locking mechanism 5 includes an electronic lock assembly and a mechanical lock assembly. The mechanical lock assembly is a one-way telescopic pin latch structure that can only be unlocked with a special key. The electronic lock assembly includes an electromagnetic detection unit controlled by the control module for detecting a locking signal in a closed-loop state.

[0060] A row of fixing holes 41 is pre-machined in the distal region of the second fixing band 4. The geometry of the fixing holes 41 is adapted to the contour of the telescopic bolt of the locking mechanism 5. The mechanical lock assembly includes a bolt and a one-way locking assembly. Under normal circumstances, the bolt remains in the extended state. When the second fixing band 4 is inserted into the fixing sleeve 31 at a certain position, the bolt is pressed inward so that it enters the fixing hole 41. The one-way locking assembly fixes the position of the bolt, thereby achieving instant mechanical locking. The side wall of the fixing sleeve 31 has a lock hole connected to the one-way locking assembly. When unlocking, a key with a special tooth profile is inserted into the lock hole to release the one-way locking assembly. The bolt extends under the drive of the ejector assembly to achieve unlocking. The electromagnetic detection unit integrates a status monitoring circuit to detect parameters such as the bolt position in real time to ensure the reliability of the locking state.

[0061] The vital signs detection module 6 is used to acquire the user's vital signs information. The module adopts a distributed architecture design, including a first vital signs detection unit 61 located within the fixed sleeve 31 and a second vital signs detection unit 62 located on the back of the display screen body 1. Utilizing the device's structural characteristics, it achieves multi-point, multi-parameter physiological signal acquisition. The vital signs detection module 6 is connected to the control module via a high-speed serial bus, supporting real-time data transmission and command issuance. The module employs a low-power design, automatically entering sleep mode during inactive periods and immediately resuming full-function operation upon detecting motion signals or receiving a wake-up command.

[0062] In some embodiments, the vital signs detection module 6 includes a first vital signs detection unit 61 disposed within the fixing sleeve 31. The first vital signs detection unit 61 includes a vein image detection unit disposed on the inner wall of the fixing sleeve 31 for contact with the user's wrist skin. The vein image detection unit is electrically connected to a control module within the display screen body 1.

[0063] The first vital sign detection unit 61 is located within the fixation sleeve 31, and the vein image detection unit employs multi-band bioelectrical impedance tomography (BIT) technology. An array of electrodes is embedded in the inner curved surface of the fixation sleeve 31 where it contacts the wrist skin. The electrodes are made of a highly biocompatible alloy. During authentication or routine checkups, the electrode array sequentially injects multiple frequencies (e.g., 50kHz, 100kHz, 200kHz) of safe microampere alternating current into the tissue. By measuring the corresponding voltages, the impedance distribution map of the wrist cross-section is reconstructed, and a high-resolution three-dimensional model of the vein is generated using a dedicated image reconstruction algorithm.

[0064] In some embodiments, the vital signs detection module 6 further includes a second vital signs detection unit 62. A sensor window is provided on the back of the display screen body 1, and the second vital signs detection unit 62 is disposed inside the window. The second vital signs detection unit 62 includes at least an optical sensing unit and an electrophysiological sensing unit. The window is sealed with sapphire glass to provide a certain degree of wear resistance and optical transparency. The second vital signs detection unit 62 is integrated on a micro-movable platform. Through a displacement mechanism based on a piezoelectric ceramic actuator, the contact pressure between the sensor and the skin is dynamically adjusted to eliminate signal fluctuations caused by movement or loosening of the skin. The optical sensing unit uses reflective photoplethysmography, integrating four-wavelength vertical-cavity surface-emitting lasers as light sources and a high dynamic range single-photon avalanche diode as a photodetector, capable of simultaneously calculating heart rate, blood oxygen saturation, respiratory rate, and blood pressure trends. The electrophysiological sensing unit uses non-contact capacitively coupled electrodes to acquire electrocardiogram signals and skin conductance signals by measuring minute potential changes on the skin surface.

[0065] Example 2

[0066] In some embodiments, the display device further includes a wireless charging receiver coil, which is sealed inside the mounting housing and electrically connected to an internal power supply; a positioning communication module, which is disposed in the mounting housing; and an interaction module, which includes a display screen disposed on the front of the display body and a camera unit and a microphone unit integrated on the side wall or the front.

[0067] The display device's power system employs a fully enclosed wireless charging solution. The wireless charging receiver coil, wound with Litz wire, is vacuum-encapsulated and fixed in a specific location within the mounting cavity, connecting to the internal battery and management circuitry. The positioning and communication module is encapsulated in a metal shield, supporting signal reception from global navigation satellite systems including GPS, BeiDou, GLONASS, and Galileo. It also integrates a low-power wide-area communication module and a 5G NR-compatible cellular communication module, ensuring indoor and outdoor positioning and data transmission in the complex architectural environments of monitored locations. The camera unit includes a visible light sensor and an infrared night vision sensor, both exposed through a shared protective window, and features autofocus and wide-angle shooting capabilities. The microphone unit utilizes MEMS technology and integrates an active noise reduction algorithm for clearly capturing voice commands in noisy environments.

[0068] Example 3

[0069] Reference Figure 3 This application provides an interactive system for use in regulatory sites, including multiple display devices, multiple wireless charging docks, and a central management center. The display devices are responsible for collecting on-site data and executing control commands.

[0070] The wireless charging dock is designed to work with the display device. In addition to providing magnetic resonance wireless charging, in some embodiments it can also serve as a data relay station. The wireless charging dock integrates an edge computing node and a data caching unit. When the display device is placed on it, a wired data link is automatically established to perform offline synchronization of large amounts of data (such as high-definition vein images and long-term electrocardiogram recordings) and firmware incremental upgrades, thereby reducing the transmission pressure on the wireless network.

[0071] The central management center employs a microservices architecture and communicates with display devices, deployed on a regulatory agency's private cloud or a certified public cloud. In some embodiments, the central management center includes a data receiving module, an authentication module, and an early warning analysis module.

[0072] The data receiving module controls the communication connection of the control module to receive device status data and vital sign data uploaded by the vital sign detection module, and performs real-time preprocessing. The data receiving module adopts an asynchronous message queue architecture, supports massive concurrent connections, and can receive multiple data streams from various display devices in real time. The data receiving module preprocesses the raw data, including data cleaning, format standardization, and timestamp alignment, providing a high-quality data foundation for subsequent analysis.

[0073] The identity authentication module is used to verify the identity of personnel based on the data obtained by the data receiving module. The identity authentication module adopts a multimodal biometric fusion algorithm based on deep convolutional neural network. This network is trained with millions of biometric samples and can fuse the vein spatial features from the vein image detection unit, the facial depth features from the camera unit, and the heartbeat waveform features from the electrocardiogram signal at the front end to output a comprehensive identity confidence score and achieve high-precision identity recognition.

[0074] The early warning analysis module is used to generate graded alarms based on the received device status data and vital sign data. The early warning analysis module integrates a rule-based expert system and an unsupervised learning algorithm. The rule system is used to handle explicit threshold alarms, such as displaying abnormal device removal or heart rate exceeding 180 beats / minute, while the unsupervised learning model (such as isolated forest or autoencoder) is used to learn the normal behavior and physiological patterns of each individual from long-term data, thereby detecting subtle abnormalities that deviate from the pattern and are difficult to describe with simple rules.

[0075] In some embodiments, it also includes:

[0076] Multiple regional interactive terminals are deployed in various functional areas within the regulatory site, communicating with the central management center and display devices to authenticate and exchange data with display devices that enter their communication range.

[0077] The interactive system deploys regional interactive terminals in key functional areas of the monitored premises (such as entrances / exits, activity areas, and medical rooms). Each regional interactive terminal is equipped with a UWB positioning base station and a high-speed Wi-Fi 6 access point, enabling low-latency communication with display devices entering its coverage area. The regional interactive terminal can perform rapid local identity verification on accessing display devices and, based on the area's security policy, temporarily grant or restrict certain functions of the display devices.

[0078] Example 4

[0079] Reference Figure 4 This application provides a monitoring method for use in regulatory sites. Based on the aforementioned display device or interactive system, the monitoring method includes:

[0080] S1, insert the end of the second fixing strap into the fixing sleeve, and irreversibly lock the device to the user's wrist through the locking mechanism; the operator inserts the end of the second fixing strap along the guide groove of the fixing sleeve, and then inserts the mechanical locking tongue into the fixing hole to complete the locking of the mechanical lock component. At the same time, the electronic lock component in the fixing sleeve is triggered, sends a signal to the control module, and uploads an encrypted log containing the wearing time, operator ID, device serial number and initial sensor readings to the central management center, showing that the device has entered the active monitoring state.

[0081] S2, during or after locking, continuously and / or intermittently collects the user's vital signs data via the vital signs detection module. In the initial phase after device locking, the vital signs detection module performs a comprehensive baseline calibration measurement. The vein image detection unit acquires an initial vein template, while the optical sensing unit and electrophysiological sensing unit continuously collect physiological signals for three minutes while the wearer is at rest to establish personalized baseline parameters for heart rate, blood oxygenation, and electrocardiogram. The baseline data, bound to the wearer's identity, is stored in an encrypted database at the central management center and in the local secure storage of the display device. Subsequently, the vital signs detection module collects data according to preset scenario modes: during the nighttime resting period, low-frequency intermittent sampling is used to save power; during the daytime active period, continuous monitoring mode is used; and when vigorous exercise is detected or a manual trigger command is received, a high-frequency enhanced sampling mode is activated to capture more detailed physiological dynamics.

[0082] S3 continuously reports the device's location information, vital sign data, and the on / off status of the anti-shear detection circuit. The positioning and status monitoring process continues, displaying the device's positioning communication module running a multi-sensor fusion positioning algorithm based on an extended Kalman filter. This algorithm integrates location information from the Global Navigation Satellite System, dead reckoning data from the built-in inertial measurement unit, and UWB relative distance measurements from the regional interactive terminal, ultimately outputting a smooth, reliable, and high-refresh-rate three-dimensional position trajectory. Simultaneously, the control module periodically polls the impedance value of the anti-shear detection circuit, the battery impedance spectrum, vital sign detection module information, and the operating status words of all major functional chips, forming a comprehensive device health indicator.

[0083] S4 sends an alarm when abnormal information is detected. The abnormal information includes at least the user's location being outside the predetermined range, abnormal vital signs, and disconnection of the anti-cutting detection circuit. The abnormal information defined by the system constitutes a complex judgment matrix. For abnormal location, it not only judges whether the user has exceeded the electronic fence boundary, but also judges whether there is suspicious behavior such as loitering or tailgating by analyzing the entropy value of the movement trajectory. For abnormal vital signs, the early warning analysis module compares real-time data with dynamically adjusted personalized baselines and uses a continuous abnormality scoring model (such as the stress index based on the variability of heart intervals). An alarm is triggered only when the accumulated score exceeds a threshold to avoid false alarms caused by short-term physiological fluctuations. For emergency events such as disconnection of the anti-cutting detection circuit, the system will immediately initiate the highest level of response: the local audible and visual alarm of the display device will be activated, and at the same time, the alarm information (including the last known location, disconnection timestamp, and device serial number) will be sent to the central management center and the regional interactive terminals of the relevant areas with the highest priority through all available communication links.

[0084] In some embodiments, the regulatory approach further includes:

[0085] S5 compares the collected vital sign data with pre-stored information to complete the initial identity binding. During the initial binding, the system requires the wearer to provide vein images and electrocardiogram signals multiple times in different postures and wrist angles to construct a fault-tolerant multi-pose biometric template. In daily verification, identity authentication can be passive and imperceptible (e.g., when the wearer passes through the coverage area of ​​the regional interactive terminal) or actively triggered (e.g., facial recognition verification via camera before performing sensitive operations). The authentication process uses a lightweight feature matching algorithm to run quickly on resource-constrained display devices and supports offline verification. All authentication attempts, regardless of success or failure, are recorded in detail and encrypted for storage, forming an immutable audit trail.

[0086] In S6, during identity verification, vital sign data is collected again for real-time comparison to complete identity authentication. The machine learning model in the central management center periodically performs retrospective analysis on all collected anonymized data to identify potential systemic biases or optimize group behavior model parameters. Based on these analysis results, the system can automatically generate equipment calibration recommendations, update thresholds for anomaly detection algorithms, or provide managers with data insight reports on the effectiveness of regulatory strategies, thereby improving the overall system's security, accuracy, and efficiency.

[0087] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

Claims

1. A display device for use in supervised locations, characterized in that, The display screen body (1) is provided with a mounting shell (2) at the back, and a control module is arranged in the mounting shell (2); A first fixing belt (3) and a second fixing belt (4) are fixedly connected to the two sides of the display screen body (1) respectively at one end, and a shear-resistant detection circuit is embedded in the first fixing belt (3) and the second fixing belt (4), and the shear-resistant detection circuit is electrically connected with the control module arranged in the mounting shell (2); A fixing sleeve (31) is fixedly arranged at the end of the first fixing belt (3); A locking mechanism (5) is arranged in the fixing sleeve (31); a plurality of fixing holes (41) are formed in the second fixing belt (4), and the end of the second fixing belt (4) can be inserted into the fixing sleeve (31) so that the locking mechanism (5) is embedded and locked with the fixing holes (41); A vital sign detection module (6) is used to obtain the vital sign information of a user. The locking mechanism (5) comprises:

2. The display device of claim 1, wherein: A mechanical lock assembly, which is a one-way telescopic cylinder lock structure and can only be unlocked by a special key; An electronic lock assembly, which comprises an electromagnetic detection unit controlled by the control module and is used to detect a locking signal in a closed loop state. The vital sign detection module (6) comprises a first vital sign detection unit (61) arranged in the fixing sleeve (31), and the first vital sign detection unit (61) comprises a vein image detection unit arranged on the inner wall of the fixing sleeve (31) for contacting the skin of the wrist of a user, and the vein image detection unit is electrically connected with the control module in the display screen body (1).

3. The display device of claim 1, wherein, The vital sign detection module (6) further comprises a second vital sign detection unit (62), and a sensor window is formed in the back of the display screen body (1), the second vital sign detection unit (62) is arranged on the inner side of the window, and the second vital sign detection unit (62) at least comprises an optical sensing unit and an electro-physiological sensing unit.

4. The display device of claim 3, wherein, Further comprising:

5. The display device of claim 4, wherein, A wireless charging receiving coil, which is sealingly arranged in the mounting shell (2) and is electrically connected with an internal power supply; A positioning communication module arranged in the mounting shell (2); An interactive module comprising a display screen arranged on the front of the display screen body (1), a camera unit integrated in the side wall or the front, and a microphone unit. The display device comprises:

6. An interactive system for use in regulatory facilities, characterized in that, At least one display device as claimed in any one of claims 1 to 5; At least one wireless charging seat; A central management center in communication connection with the display device. The central management center comprises:

7. The interactive system of claim 6, wherein, A data receiving module in communication connection with the control module, for receiving device state data and vital sign data uploaded by the vital sign detection module, and performing real-time preprocessing; An identity authentication module for verifying the identity of a person according to the data obtained by the data receiving module; An early warning analysis module for generating a graded alarm based on the received device state data and vital sign data. Further comprising:

8. The interactive system of claim 6, wherein, ​ A plurality of regional interaction terminals are arranged in each functional area of the supervision site, and are in communication connection with the central management center and the display device, for authentication and data interaction with the display device entering the communication range thereof.

9. A method of supervision applied to a supervised site, based on the display device of any one of claims 1 to 5, or the interactive system of any one of claims 6 to 9, characterized in that, The method comprises the following steps: inserting the end of the second fixing band into the fixing sleeve, and irreversibly locking the device on the wrist of the user through the locking mechanism; continuously and / or intermittently collecting vital sign data of the user through the vital sign detection module during or after the locking process; continuously reporting the position information, vital sign data and the on-off state of the anti-cut detection circuit of the device; sending an alarm when detecting abnormal information, wherein the abnormal information at least includes that the position of the user is out of the predetermined range, the vital sign is in an abnormal state, and the anti-cut detection circuit is disconnected.

10. The method of claim 9, wherein, The method further comprises: comparing the collected vital sign data with the pre-stored information to complete the first-wearing identity binding; when performing identity verification, collecting the vital sign data again for real-time comparison to complete identity authentication.

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