A hospital hand hygiene monitoring system and method that reduces server computing power consumption

Abstract

The application discloses a hospital hand hygiene monitoring system and method for reducing server computing power consumption, and the system comprises a hand hygiene AI action recognition server, an Ethernet port camera, an access controller, an Ethernet switch and a dual-frequency transceiving tag card; when the access controller turns on the connection of the Ethernet port camera to the Ethernet, the hand hygiene action video of medical staff shot by the Ethernet port camera is transmitted to the hand hygiene AI action recognition server through the Ethernet to obtain the statistics of the hand hygiene compliance of the medical staff; when the access controller turns off the connection of the Ethernet port camera to the Ethernet, the hand hygiene action video of the medical staff shot by the Ethernet port camera is not transmitted, so as to reduce the server computing power consumption; through the wireless linkage of the access controller and the dual-frequency tag card, the dynamic control of the network connection of the camera is realized, so that the accurate identification of the hand hygiene behavior is ensured, and the invalid computing consumption of the server is greatly reduced.

Description

Technical Field

[0001] This invention relates to the fields of wireless communication technology, Internet of Things technology, and artificial intelligence technology, and more specifically to a hospital hand hygiene monitoring system and method that reduces server computing power consumption. Background Technology

[0002] Currently, in security monitoring applications, cameras with built-in deployment monitoring capabilities are often used to significantly reduce the consumption of GPU computing power in AI recognition servers. Many cameras used in security monitoring have built-in processors, thus possessing a certain computing power and capable of running detection algorithms within the processor. These cameras can pre-define certain areas within their captured images as deployment zones. Only when the detection algorithm running in their built-in processor detects an object entering the deployment zone will the captured video be transmitted to the AI ​​recognition server for further identification.

[0003] However, for videos captured by cameras deployed at hand hygiene locations in hospitals, it is highly likely that people or objects unrelated to hand hygiene will enter the camera's field of view. As it is impossible to avoid the problem of people or objects unrelated to hand hygiene frequently entering the field of view of hand hygiene monitoring cameras, even if cameras with front-end deployment monitoring functions are used, it is still impossible to effectively reduce the consumption of GPU computing power in AI recognition servers.

[0004] Once invalid videos are transmitted to the hand hygiene AI action recognition server, it will cause a serious waste and unnecessary consumption of the server's computing power. To solve this problem, this invention proposes a hospital hand hygiene monitoring system that reduces the server's computing power consumption. Summary of the Invention

[0005] The purpose of this invention is to provide a hospital hand hygiene monitoring system and method that reduces server computing power consumption. By wirelessly linking the access controller and dual-frequency tag card, dynamic control of the camera network connection is achieved, thereby ensuring accurate identification of hand hygiene behavior while significantly reducing the server's ineffective computing power consumption.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A hospital hand hygiene monitoring system that reduces server computing power consumption includes: a hand hygiene AI action recognition server, an Ethernet port camera, an access controller, an Ethernet switch, and a dual-frequency transceiver tag card; The access controller is connected to the hand hygiene AI action recognition server via an Ethernet switch; the access controller and the dual-frequency transceiver tag are connected via 125KHz or 433MHz dual-frequency wireless communication to dynamically control the connection status of the Ethernet port camera to the Ethernet. When the access controller connects the Ethernet port camera to the Ethernet, the video of medical staff's hand hygiene actions captured by the Ethernet port camera is transmitted to the hand hygiene AI action recognition server through the Ethernet switch. The AI ​​recognition algorithm running in the hand hygiene AI action recognition server completes the detection, extraction and recognition of the video of medical staff's hand hygiene actions in order to obtain statistics on the medical staff's hand hygiene compliance. When the access controller disconnects the Ethernet port camera from the Ethernet network, the video of medical staff performing hand hygiene actions captured by the Ethernet port camera is not transmitted, in order to reduce the server's computing power consumption.

[0007] Furthermore, the access controller includes: an uplink module, a downlink module, a signal connectivity control module, a 433MHz wireless receiving module, a 125KHz wireless transmitting module, and a baseband processor module; The external port of the downlink module is connected to the Ethernet port camera, and the internal interface of the downlink module is connected to the downlink interface of the signal connectivity control module. The external port of the uplink module is connected to an Ethernet switch, and the internal interface of the uplink module is connected to the uplink interface of the signal connectivity control module. The 433MHz wireless receiver module's 433M encoding output interface is connected to the baseband processor module's 433M encoding input interface. The 125K encoding output interface of the baseband processor module is connected to the 125KHz wireless transmission module's 125K encoding input interface; The connection control signal output interface of the baseband processor module is connected to the connection control signal input interface of the signal connection control module.

[0008] Furthermore, the dual-frequency transceiver tag card includes: a 433MHz wireless transmitting module, a 125KHz wireless receiving module, a baseband processor module, a power management module, and a battery; The 125KHz wireless receiver module's 125K encoding output interface is connected to the baseband processor module's 125K encoding input interface; The 433M encoding output interface of the baseband processor module is connected to the 433M encoding input interface of the 433MHz wireless transmission module; The interrupt request signal output interface of the 125KHz wireless receiver module is connected to the 125K interrupt input interface of the baseband processor module. The battery is electrically connected to the power management module; the power output interface of the power management module is connected to the power input interfaces of the battery, the baseband processor module, the 433MHz wireless transmitter module, and the 125KHz wireless receiver module, respectively.

[0009] The present invention also provides a method for implementing a hospital hand hygiene monitoring system that reduces server computing power consumption, comprising the following steps: S1. The access controller continuously transmits a 125kHz wireless signal containing a built-in 125kHz identifier; S2. When the dual-frequency transceiver tag enters the 125kHz excitation sensing area, the dual-frequency transceiver tag receives and parses the 125kHz excitation identifier in the 125kHz wireless signal transmitted by the access controller; the access controller receives and parses the 125kHz excitation identifier in the 433MHz wireless signal transmitted by the dual-frequency transceiver tag. S3. When the 125K excitation identifier parsed by the access controller matches the 125K built-in identifier of the access controller, reset the 433MHz built-in identifier receiving timer and connect the Ethernet port camera to the Ethernet. S4. When the access controller fails to resolve a matching 125K excitation identifier or the 125K excitation identifier resolved by the access controller is inconsistent with the 125K built-in identifier of the access controller, determine whether the receive timer has timed out; if so, disconnect the connection between the Ethernet port camera and the Ethernet and turn off the receive timer; if not, wait to receive the 125K excitation identifier in the 433MHz wireless signal transmitted by the dual-frequency transceiver tag card. S5. After transmitting a 433MHz wireless signal, the dual-frequency transceiver tag returns to sleep mode.

[0010] Furthermore, in step S4, if the access controller does not resolve a matching 125K excitation identifier, it continuously transmits a 125KHz wireless signal; if the access controller resolves a matching 125K excitation identifier, it periodically transmits a 125KHz wireless signal at intervals.

[0011] Furthermore, in step S4, after the receive timer times out, the access controller disconnects and shuts down the receive timer, and resumes continuous transmission of the 125KHz wireless signal.

[0012] Furthermore, in step S5, during the sleep state, the 125kHz wireless receiver module and interrupt handling circuit are powered on; the baseband processor module is awakened by the interrupt signal from the 125kHz wireless receiver module.

[0013] The present invention also provides an electronic device, comprising: The system includes a memory and a processor, wherein the memory is coupled to the processor; the memory stores program instructions that, when executed by the processor, implement a hospital hand hygiene monitoring method that reduces server computing power consumption.

[0014] The present invention also provides a computer-readable storage medium including a computer program that, when run on an electronic device, causes the electronic device to perform a hospital hand hygiene monitoring method that reduces server computing power consumption.

[0015] According to specific embodiments provided by the present invention, the present invention has the following technical effects compared to the prior art: This invention utilizes dual-band wireless communication (125kHz or 433MHz). The system dynamically senses the location and behavior of medical personnel based on tags they wear. The network connection between the camera and server is only activated by the access controller when needed, enabling on-demand video data acquisition and significantly reducing the continuous transmission and processing of invalid video. Secondly, this intelligent connection control mechanism directly leads to significant resource optimization: during non-working hours or when there is no relevant personnel activity, the network connection is cut off, and camera video is not transmitted. This not only significantly reduces server computing power consumption and storage pressure but also effectively alleviates network bandwidth usage, improving the overall system's operational efficiency and stability. Finally, the system ensures that high-definition video is captured in real-time and transmitted to the AI ​​server for accurate action detection, extraction, and recognition only when medical personnel perform hand hygiene procedures. This guarantees the accuracy and effectiveness of hand hygiene compliance statistics, providing reliable data support for hospital management and achieving an optimal balance between monitoring efficiency and resource consumption. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0017] The following description, in conjunction with the accompanying drawings, further illustrates a hospital hand hygiene monitoring system and method for reducing server computing power consumption according to the present invention; Figure 1 This is a schematic diagram of one of the Ethernet deployment methods of the hospital hand hygiene monitoring system in Embodiment 1 based on Embodiment 2 of the present invention. This deployment method adopts a three-layer Ethernet switch, and the Ethernet port camera and its access controller are deployed on the same core layer and different aggregation layers as the hand hygiene AI action recognition server. Figure 2 This is a schematic diagram of another Ethernet deployment form of the hospital hand hygiene monitoring system in Embodiment 3 of the present invention. In this deployment method, the Ethernet port camera and its access controller are deployed on the same aggregation layer and different access layers as the hand hygiene AI action recognition server. Figure 3This is a schematic diagram of another Ethernet deployment form of the hospital hand hygiene monitoring system in Embodiment 4 of the present invention. In this deployment method, the Ethernet port camera and its access controller are deployed on the same access layer as the hand hygiene AI action recognition server. Figure 4 This is a schematic diagram showing the composition and connection relationship of the access controller in the hospital hand hygiene monitoring system of Embodiment 1 of the present invention; Figure 5 This is a schematic diagram illustrating the labeling of the internal and external interfaces of the access controller in the hospital hand hygiene monitoring system of Embodiment 1 of the present invention; Figure 6 This is a schematic diagram showing the composition and connection relationship of the dual-frequency transceiver tags in the hospital hand hygiene monitoring system of Embodiment 1 of the present invention; Figure 7 This is a schematic diagram illustrating the labeling of each internal interface of the dual-frequency transceiver tag in the hospital hand hygiene monitoring system of Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the process in Embodiment 5 of the present invention, in which the access controller in the hospital hand hygiene monitoring system enables the Ethernet port camera to connect to the Ethernet or disconnect from the Ethernet based on whether the 125K parsing identifier is parsed in a timely manner. Figure 9 This is a schematic diagram of the relevant processing flow of the access controller receiving the timeout message of the 433M built-in identifier receiving timer in the hospital hand hygiene monitoring system in Embodiment 5 of the present invention; Figure 10 This is a schematic diagram of the processing flow of the dual-frequency transceiver tag in the hospital hand hygiene monitoring system of Embodiment 5 of the present invention, which adopts a dual-state switching mode of sleep-wake.

[0018] In the diagram: 1. Access controller; 2. Ethernet port camera; 3. Dual-frequency transceiver tag card; 4. Access layer switch; 5. First aggregation layer switch; 6. Core layer switch; 7. Second aggregation layer switch; 8. Access layer switch; 9. Hand hygiene AI action recognition server. Detailed Implementation

[0019] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0020] To better understand the purpose, structure, and function of this invention, the invention will be described in further detail below with reference to the accompanying drawings.

[0021] Example 1 This invention provides a hospital hand hygiene monitoring system that reduces server computing power consumption, comprising: a hand hygiene AI action recognition server 9, an Ethernet port camera 2, an access controller 1, an Ethernet switch, and a dual-frequency transceiver tag 3; The access controller 1 is connected to the hand hygiene AI action recognition server 9 via an Ethernet switch; the access controller 1 and the dual-frequency transceiver tag 3 communicate wirelessly via 125KHz or 433MHz dual-frequency wirelessly to dynamically control the connection status of the Ethernet port camera 2 to the Ethernet. When the access controller 1 connects the Ethernet port camera 2 to the Ethernet, the video of the medical staff's hand hygiene actions captured by the Ethernet port camera 2 is transmitted to the hand hygiene AI action recognition server 9 through the Ethernet switch. The AI ​​recognition algorithm running in the hand hygiene AI action recognition server completes the detection, extraction and recognition of the video of the medical staff's hand hygiene actions in order to obtain statistics on the medical staff's hand hygiene compliance. When the access controller 1 disconnects the Ethernet port camera 2 from the Ethernet network, the video of medical staff performing hand hygiene actions captured by the Ethernet port camera 2 will not be transmitted, in order to reduce the server's computing power consumption.

[0022] The access controller 1 includes: an uplink module, a downlink module, a signal connectivity control module, a 433MHz wireless receiving module, a 125KHz wireless transmitting module, and a baseband processor module; The external port of the downlink module is connected to the Ethernet port camera 2, and the internal interface of the downlink module is connected to the downlink interface of the signal connectivity control module. The external port of the uplink module is connected to an Ethernet switch, and the internal interface of the uplink module is connected to the uplink interface of the signal connectivity control module. The 433MHz wireless receiver module's 433M encoding output interface is connected to the baseband processor module's 433M encoding input interface. The 125K encoding output interface of the baseband processor module is connected to the 125KHz wireless transmission module's 125K encoding input interface; The connection control signal output interface of the baseband processor module is connected to the connection control signal input interface of the signal connection control module.

[0023] The dual-frequency transceiver tag card includes: a 433MHz wireless transmitter module, a 125KHz wireless receiver module, a baseband processor module, a power management module, and a battery; The 125KHz wireless receiver module's 125K encoding output interface is connected to the baseband processor module's 125K encoding input interface; The 433M encoding output interface of the baseband processor module is connected to the 433M encoding input interface of the 433MHz wireless transmission module; The interrupt request signal output interface of the 125KHz wireless receiver module is connected to the 125K interrupt input interface of the baseband processor module. The battery is electrically connected to the power management module; the power output interface of the power management module is connected to the power input interfaces of the battery, the baseband processor module, the 433MHz wireless transmitter module, and the 125KHz wireless receiver module, respectively.

[0024] This embodiment is specifically as follows: Figure 4 As shown, the access controller 1 consists of an uplink module, a downlink module, a signal connectivity control module, a 433MHz wireless receiver module, a 125kHz wireless transmitter module, and a baseband processor module. The uplink module connects the uplink interface of the signal connectivity control module to the Ethernet cable; the uplink module can use a common RJ45 interface. The downlink module connects the downlink interface of the signal connectivity control module to the Ethernet cable; the downlink module can also use a common RJ45 interface.

[0025] like Figure 5 As shown, the external port of the downlink module of access controller 1 is connected to an Ethernet cable. The external port of the uplink module of access controller 1 is also connected to an Ethernet cable. The internal interface of the downlink module of access controller 1 is connected to the downlink interface of the signal connectivity control module. The internal interface of the uplink module of access controller 1 is connected to the uplink interface of the signal connectivity control module.

[0026] like Figure 5 As shown, the connectivity control signal output interface of the baseband processor module of access controller 1 is connected to the connectivity control signal input interface of the signal connectivity control module. The 125K encoding output interface of the baseband processor module is connected to the 125K encoding input interface of the 125KHz wireless transmitter module. The 433M encoding input interface of the baseband processor module is connected to the 433M encoding output interface of the 433MHz wireless receiver module.

[0027] like Figure 6 As shown, the dual-frequency transceiver tag 3 is an active tag that contains a battery. Its components include a 433MHz wireless transmitter module, a 125KHz wireless receiver module, a baseband processor module, a power management module, and a battery.

[0028] like Figure 7As shown, the 433MHz power supply control output interface of the baseband processor module of the dual-band transceiver tag card 3 is connected to the 433MHz power supply control input interface of the power management module. Furthermore, the 125K encoding input interface of the baseband processor module is connected to the 125K encoding output interface of the 125kHz wireless receiver module in the card. The 433MHz encoding output interface of the baseband processor module is connected to the 433MHz encoding input interface of the 433MHz wireless transmitter module in the card. Additionally, the 125K interrupt input interface of the baseband processor module is connected to the interrupt request signal output interface of the 125kHz wireless receiver module. Moreover, the interface between the power management module of the dual-band transceiver tag card 3 and the battery is used to obtain current and voltage from the battery; the baseband power supply output interface of the power management module is connected to the power supply input interface of the baseband processor module, the 433MHz power supply output interface of the power management module is connected to the power supply input interface of the 433MHz wireless transmitter module, and the 125K power supply output interface of the power management module is connected to the power supply input interface of the 125kHz wireless receiver module. The power management module provides the necessary voltage and current for the baseband processor module, 433MHz wireless transmitter module, and 125KHz wireless receiver module through these interfaces.

[0029] Example 2 This embodiment provides one implementation method of Embodiment 1: as follows Figure 1 The diagram provided illustrates an Ethernet deployment method for a hospital hand hygiene monitoring system according to an embodiment of the present invention. Figure 1 Access layer switch 4, first aggregation layer switch 5, core layer switch 6, and second aggregation layer switch 7 are all Ethernet switches, therefore Figure 1 The illustrated hospital hand hygiene monitoring system actually consists of a hand hygiene AI action recognition server (9), an Ethernet camera (2), an Ethernet cable, an access controller (1), an Ethernet switch, and a dual-frequency transceiver tag (3). However... Figure 1 The illustrated deployment method uses a three-layer Ethernet switch, and the Ethernet port camera 2 and its access controller 1 are deployed on the same core layer and different aggregation layers as the hand hygiene AI action recognition server 9.

[0030] exist Figure 1 In the embodiment shown, one side of the access controller 1's external interface (i.e., the external port of the downlink module) is connected to the Ethernet port of the Ethernet camera 2 via a network cable, enabling the Ethernet camera 2 to access the Ethernet network through the access controller 1. The other side of the access controller 1's external interface (i.e., the external port of the uplink module) is connected to an Ethernet switch via a network cable, enabling the access controller 1 to access the Ethernet network through the Ethernet switch.

[0031] exist Figure 1In this embodiment, the Ethernet port camera 2 must connect to the Ethernet via the access controller 1. When a medical staff member carrying a dual-frequency transceiver tag 3 arrives at the "125K excitation sensing area", the dual-frequency transceiver tag 3 can receive the 125KHz wireless signal encoded and modulated by the access controller 1. After receiving the 125KHz wireless signal and completing the parsing of the 125K excitation identifier, the dual-frequency transceiver tag 3 will immediately transmit a 433MHz wireless signal encoded and modulated by the access controller 1 that transmitted the 125KHz wireless signal.

[0032] In this embodiment, the modulation method of 125K encoding for 125KHz wireless signals can be OOK, which stands for Binary On-Off Keying (OOK) or Binary Amplitude Keying. The modulation method of 433M encoding for 433MHz wireless signals can be FSK (Frequency Shift Keying).

[0033] Example 3 This embodiment provides another implementation method of Embodiment 1, which is as follows: Figure 2 This is a schematic diagram of another Ethernet deployment configuration of the hospital hand hygiene monitoring system according to an embodiment of the present invention. In this deployment, the Ethernet port camera 2 and its access controller 1 are deployed on the same aggregation layer and on different access layers as the hand hygiene AI action recognition server 9. Compared with embodiment 2, Figure 2 The hospital hand hygiene monitoring system shown is the only difference in this respect; otherwise, it is the same as the hospital hand hygiene monitoring system in Example 2. Figure 2 For further details regarding the hospital hand hygiene monitoring system shown, please refer to [link / reference]. Figure 1 The illustration shows a hospital hand hygiene monitoring system.

[0034] In this embodiment, the modulation method of 125K encoding for 125KHz wireless signals can be OOK, which stands for Binary On-Off Keying (OOK) or Binary Amplitude Keying. The modulation method of 433M encoding for 433MHz wireless signals can be FSK (Frequency Shift Keying).

[0035] Example 4 This embodiment provides another implementation method of Embodiment 1, which is as follows: Figure 3 This is a schematic diagram of another Ethernet deployment configuration of the hospital hand hygiene monitoring system according to an embodiment of the present invention. In this deployment, the Ethernet port camera 2 and its access controller 1 are deployed on the same access layer as the hand hygiene AI action recognition server 9. Figure 1 Compared to the situation shown, Figure 3The hospital hand hygiene monitoring system shown is the only difference in this respect; otherwise, it is the same as the hospital hand hygiene monitoring system in Example 1. Therefore, for Figure 3 For further details regarding other aspects of the hospital hand hygiene monitoring system shown, please refer to the section above. Figure 1 The illustration shows a hospital hand hygiene monitoring system.

[0036] In this embodiment, the modulation method of 125K encoding for 125KHz wireless signals can be OOK, which stands for Binary On-Off Keying (OOK) or Binary Amplitude Keying. The modulation method of 433M encoding for 433MHz wireless signals can be FSK (Frequency Shift Keying).

[0037] Example 5 This embodiment provides a method for reducing server computing power consumption in a hospital hand hygiene monitoring system as described in Embodiment 1, such as... Figure 8 and Figure 10 As shown, it includes the following steps: S1. Access controller 1 continuously transmits a 125kHz wireless signal containing a built-in 125kHz identifier; S2. When the dual-frequency transceiver tag 3 enters the 125K excitation sensing area, the dual-frequency transceiver tag 3 receives and parses the 125K excitation identifier in the 125KHz wireless signal transmitted by the access controller 1; the access controller 1 receives and parses the 125K excitation identifier in the 433MHz wireless signal transmitted by the dual-frequency transceiver tag 3. S3. When the 125K excitation identifier resolved by the access controller 1 is consistent with the 125K built-in identifier of the access controller 1, reset the 433MHz built-in identifier receiving timer and connect the Ethernet port camera 2 to the Ethernet. S4. When the access controller 1 does not resolve a matching 125K excitation identifier or the 125K excitation identifier resolved by the access controller 1 is inconsistent with the 125K built-in identifier of the access controller 1, determine whether the receive timer has timed out; if so, disconnect the connection between the Ethernet port camera 2 and the Ethernet and turn off the receive timer; if not, wait to receive the 125K excitation identifier in the 433MHz wireless signal transmitted by the dual-frequency transceiver tag card 3. S5. After transmitting a 433MHz wireless signal, the dual-frequency transceiver tag 3 returns to sleep mode.

[0038] In step S4, if the access controller 1 does not resolve a matching 125K excitation identifier, it continuously transmits a 125KHz wireless signal; if the access controller 1 resolves a matching 125K excitation identifier, it periodically transmits a 125KHz wireless signal at intervals.

[0039] In step S4, after the receive timer expires, the access controller 1 disconnects and shuts down the receive timer, and resumes continuous transmission of the 125kHz wireless signal. Figure 9 As shown.

[0040] In step S5, during the sleep state, the 125kHz wireless receiver module and interrupt handling circuit are powered on; the baseband processor module is awakened by the interrupt signal from the 125kHz wireless receiver module.

[0041] This embodiment is specifically as follows: Appendix Figure 8 This is a schematic diagram illustrating the process in the hospital hand hygiene monitoring system of this invention, where the access controller determines whether the Ethernet port camera connects to or disconnects from the Ethernet port based on whether the 125K resolution identifier is resolved in a timely manner. Figure 8 In the embodiment shown, the process by which the access controller connects the Ethernet port camera to or disconnects it from the Ethernet network is completed in the following 10 steps: (1) "Waiting to receive 433 encoding": The baseband processor module in the access controller waits to receive 433 encoding input at the 433M encoding input interface. At this time, the baseband processor module does not receive the 433M encoding or the timeout message of the 433M built-in identifier receiving timer. Once the 433M encoding input is received, proceed to step 2. (2) "Received 433M encoding": In this step, the baseband processor module receives 433M encoding; then proceed to step 3; (3) "Parse 125K excitation identifier": In this step, the baseband processor module parses the 125K excitation identifier and dual-frequency transceiver tag identifier contained in the received 433M code; after parsing, proceed to step (4); (4) "Parse the 125K excitation flag?": In this step, the baseband processor module determines whether the 125K excitation flag is parsed from the received 433M code; if the 125K excitation flag is parsed, proceed to step 5; otherwise, if no timeout message of the 433M built-in flag receiving timer is received at this time, return to step 1; otherwise, if a timeout message of the 433M built-in flag receiving timer is received (consider it step 8), proceed to step 9. (5) "Consistent with 125K built-in identifier?": In this step, the baseband processor module checks whether the 125K excitation identifier parsed in step 4 above is consistent with the 125K built-in identifier of the baseband processor module. If consistent, proceed to step 6. Otherwise, if no timeout message of the 433M built-in identifier receiving timer is received at this time, return to step 1. Conversely, if a timeout message of the 433M built-in identifier receiving timer is received (consider it as step 8), proceed to step 9. (6) "Reset timer": In this step, the baseband processor module first resets the "433M built-in identifier receive timer", so that the timer is cleared and restarted, and then proceeds to step (7); (7) "Transmitting the conduction signal": In this step, the baseband processor module transmits the conduction signal to the signal connectivity control module through its connectivity control signal output interface, so that the downlink interface and the uplink interface of the signal connectivity control module are in a conducting state, and then returns to step 1. (8) "Received timer timeout message" (Note: This is only step 8 if a timeout message for the 433M built-in identifier receive timer is received): In this step, the baseband processor module receives the timeout message for the 433M built-in identifier receive timer from its internal memory, and then proceeds to step 9. (9) "Transmit Disconnection Signal": The baseband processor module transmits a disconnection signal to the signal connectivity control module through its connectivity control signal output interface, so that the downlink interface and uplink interface of the signal connectivity control module are disconnected. At this time, the Ethernet port camera cannot access the Ethernet; then proceed to step 10. (10) "Turn off timer": In this step, after the baseband processor module transmits the disconnect signal, it also turns off the 433M built-in identifier receiver timer, so that the timer stops counting, and then returns to step (1).

[0042] Combination Figure 9 , Figure 9 This is a schematic diagram illustrating the processing flow of the access controller receiving a timeout message from a 433M built-in identifier receiving timer in the hospital hand hygiene monitoring system according to an embodiment of the present invention. Figure 9 In the embodiment shown, the processing flow for the access controller receiving the timeout message of the 433M built-in identifier receive timer is completed in the following four steps: (1) "Received timer timeout message" (Note: This is only the first step if the timer timeout message of the 433M built-in identifier receive timer is received): In this step, the baseband processor module receives the timer timeout message of the 433M built-in identifier receive timer from its internal internals, and then proceeds to the second step. (2) "Transmitting disconnect signal": The baseband processor module transmits a disconnect signal to the signal connection control module through its connection control signal output interface, so that the downlink interface and the uplink interface of the signal connection control module are disconnected. At this time, the Ethernet port camera cannot access the Ethernet; then proceed to step (3); (3) "Turn off the timer": In this step, after the baseband processor module transmits the disconnect signal, it also turns off the 433M built-in identifier receiving timer, so that the timer stops counting, and then proceeds to step (4); (4) "Waiting to receive 433 encoding": The baseband processor module in the access controller is waiting to receive 433 encoding input at the 433M encoding input interface.

[0043] Appendix Figure 9 The process of the embodiment shown can only be effective if the "433M built-in identifier receiving timer" has been turned on or reset by the baseband processor module of the access controller, so that the timer is in a timing state. The baseband processor module will only be triggered to enter the process if the timer times out and the baseband processor module has not yet had time to parse the "125K parsing identifier" that matches the 125K built-in identifier.

[0044] Combined with appendix Figure 10 , attached Figure 10 This is a schematic diagram illustrating the processing flow of a dual-frequency transceiver tag in a hospital hand hygiene monitoring system according to an embodiment of the present invention, employing a sleep-wake dual-state switching mode. Figure 10 In the embodiment shown, the sleep-wake dual-state switching workflow of the dual-frequency transceiver tag is completed in the following 19 steps: (1) "The dual-frequency transceiver tag is in a sleep state": In this step, only the 125KHz wireless receiver module and the circuits inside the baseband processor module that are related to the detection and processing of the interrupt request signal of the 125KHz wireless receiver module are powered on and running, while the 433MHz wireless transmitter module and the other functional circuits inside the baseband processor module are in a sleep state that is not powered on. (2) "Received interrupt request signal from 125KHz wireless receiver module": In this step, when the dual-frequency transceiver tag is in sleep mode, once the 125KHz wireless receiver module detects a 125KHz wireless signal with a signal strength that meets the specified threshold requirements, it sends an interrupt request signal to the baseband processor module through the interrupt request signal output interface; then proceed to step 3. (3) "Baseband processor module is woken up and powered on": In this step, after the baseband processor module is woken up by the interrupt signal received by its 125K interrupt input interface, the baseband processor module first powers on the remaining internal functional circuits and then proceeds to step 4. (4) "Send 433MHz wireless transmitter module power-on signal": In this step, the baseband processor module sends a 433MHz wireless transmitter module power-on signal to the power management module, and then proceeds to step 5; (5) "433M power supply output interface output voltage and current": In this step, the 433M power supply output interface of the power management module outputs the voltage and current required for the operation of the 433MHz wireless transmission module, and then proceeds to step 6. (6) "433MHz wireless transmission module is powered on and running again": In this step, the 433MHz wireless transmission module is powered on and running again, and then proceeds to step (7); (7) "Mask 125K interrupt input": In this step, the baseband processor module masks the interrupt request signal from its 125K interrupt input interface, and then proceeds to step 8; (8) "Receive 125K encoding input": In this step, the 125KHz wireless receiving module receives and demodulates the modulated 125KHz wireless signal transmitted by the access controller, and transmits the demodulated 125K encoding to the baseband processor module through its 125K encoding input interface. The baseband processor module receives the 125K encoding through its 125K encoding input interface, and then proceeds to step 9. (9) "Parse the 125K excitation identifier": In this step, the baseband processor module parses the 125K excitation identifier from the 125K code received through its 125K encoding input interface, and then proceeds to step 10; (10) "Construct 433M code": In this step, the baseband processor module constructs 433M code using the parsed 125K excitation identifier, and then proceeds to step (11); (11) "Output 433M code": In this step, the baseband processor module transmits the 433M code to the 433MHz wireless transmission module through the 433M code output interface, and then proceeds to step 12; (12) “433MHz modulation”: In this step, the 433MHz wireless transmission module modulates the received 433M code onto a 433MHz radio frequency signal, and then proceeds to step (13); (13) "Transmit modulated 433MHz wireless signal": In this step, the 433MHz wireless transmission module transmits the modulated 433MHz wireless signal, and then proceeds to step (14); (14) "Unmask the 125K interrupt input": In this step, the baseband processor module unmasks the 125KHz wireless receiver module interrupt request signal and then proceeds to step (15). (15) "Send 433MHz wireless transmitter module power disconnect signal": In this step, the baseband processor module sends a 433MHz wireless transmitter module power disconnect signal to the power management module through its 433M power control output interface, and then proceeds to step (16); (16) "433M power supply output interface no longer outputs voltage and current": In this step, the 433M power supply output interface of the power management module no longer outputs voltage and current, and then proceeds to step (17); (17) "433MHz wireless transmitter module stops powering on": In this step, the 433MHz wireless transmitter module stops powering on and then proceeds to step (18); (18) "The baseband processor module only keeps the circuits related to the 125K interrupt input interface processing powered on": In this step, the baseband processor module only keeps the circuits related to the detection and processing of the 125KHz wireless receiver module interrupt request signal powered on, while disconnecting the power supply to the other functional circuits inside the baseband processor module, and then proceeds to step 19. (19) "Dual-frequency transceiver tag card enters sleep mode": In this step, the dual-frequency transceiver tag card enters sleep mode, while only the 125KHz wireless receiver module and the circuits inside the baseband processor module that are related to detecting and processing the interrupt request signal of the 125KHz wireless receiver module continue to be powered on and running. This process jumps back to step (1).

[0045] The present invention also provides an electronic device, comprising: The system includes a memory and a processor, wherein the memory is coupled to the processor; the memory stores program instructions that, when executed by the processor, implement a hospital hand hygiene monitoring method that reduces server computing power consumption.

[0046] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A hospital hand hygiene monitoring system that reduces server computing power consumption, characterized in that, include: Hand hygiene AI action recognition server (9), Ethernet port camera (2), access controller (1), Ethernet switch and dual-frequency transceiver tag card (3); The access controller (1) is connected to the hand hygiene AI action recognition server (9) via an Ethernet switch; the access controller (1) and the dual-frequency transceiver tag (3) communicate via 125KHz or 433MHz dual-frequency wireless communication to dynamically control the connection status of the Ethernet port camera (2) to the Ethernet. When the access controller (1) connects the Ethernet port camera (2) to the Ethernet, the video of the medical staff’s hand hygiene actions captured by the Ethernet port camera (2) is transmitted to the hand hygiene AI action recognition server (9) through the Ethernet switch. The AI ​​recognition algorithm running in the hand hygiene AI action recognition server completes the detection, extraction and recognition of the video of the medical staff’s hand hygiene actions in order to obtain statistics on the medical staff’s hand hygiene compliance. When the access controller (1) disconnects the Ethernet port camera (2) from the Ethernet, the video of medical staff's hand hygiene actions captured by the Ethernet port camera (2) is not transmitted, so as to reduce the consumption of server computing power.

2. The hospital hand hygiene monitoring system for reducing server computing power consumption according to claim 1, characterized in that, The access controller (1) includes: an uplink module, a downlink module, a signal connectivity control module, a 433MHz wireless receiving module, a 125KHz wireless transmitting module, and a baseband processor module; The external port of the downlink module is connected to the Ethernet port camera (2), and the internal interface of the downlink module is connected to the downlink interface of the signal connectivity control module. The external port of the uplink module is connected to an Ethernet switch, and the internal interface of the uplink module is connected to the uplink interface of the signal connectivity control module. The 433MHz wireless receiver module's 433M encoding output interface is connected to the baseband processor module's 433M encoding input interface. The 125K encoding output interface of the baseband processor module is connected to the 125KHz wireless transmission module's 125K encoding input interface; The connection control signal output interface of the baseband processor module is connected to the connection control signal input interface of the signal connection control module.

3. The hospital hand hygiene monitoring system for reducing server computing power consumption according to claim 1, characterized in that, The dual-frequency transceiver tag (3) includes: a 433MHz wireless transmitting module, a 125KHz wireless receiving module, a baseband processor module, a power management module, and a battery; The 125KHz wireless receiver module's 125K encoding output interface is connected to the baseband processor module's 125K encoding input interface; The 433M encoding output interface of the baseband processor module is connected to the 433M encoding input interface of the 433MHz wireless transmission module; The interrupt request signal output interface of the 125KHz wireless receiver module is connected to the 125K interrupt input interface of the baseband processor module. The battery is electrically connected to the power management module; the power output interface of the power management module is connected to the power input interfaces of the battery, the baseband processor module, the 433MHz wireless transmitter module, and the 125KHz wireless receiver module, respectively.

4. A method for monitoring hospital hand hygiene with reduced server computing power consumption, used to execute the hospital hand hygiene monitoring system with reduced server computing power consumption as described in any one of claims 1-3, characterized in that, Includes the following steps: S1. The access controller (1) continuously transmits a 125KHz wireless signal containing a built-in 125K identifier; S2. When the dual-frequency transceiver tag (3) enters the 125K excitation sensing area, the dual-frequency transceiver tag (3) receives and parses the 125K excitation identifier in the 125KHz wireless signal transmitted by the access controller (1); the access controller (1) receives and parses the 125K excitation identifier in the 433MHz wireless signal transmitted by the dual-frequency transceiver tag (3); S3. When the 125K excitation identifier resolved by the access controller (1) is consistent with the 125K built-in identifier of the access controller (1), the 433MHz built-in identifier receiving timer is reset, and the connection between the Ethernet port camera (2) and the Ethernet is turned on. S4. When the access controller (1) does not resolve a matching 125K excitation identifier or the 125K excitation identifier resolved by the access controller (1) is inconsistent with the 125K built-in identifier of the access controller (1), determine whether the receiving timer has timed out; if so, disconnect the connection between the Ethernet port camera (2) and the Ethernet and turn off the receiving timer; if not, wait to receive the 125K excitation identifier in the 433MHz wireless signal transmitted by the dual-frequency transceiver tag card (3); S5. After transmitting a 433MHz wireless signal, the dual-frequency transceiver tag (3) returns to sleep mode.

5. The hospital hand hygiene monitoring method for reducing server computing power consumption according to claim 4, characterized in that, In step S4, if the access controller (1) does not resolve a matching 125K excitation identifier, it continuously transmits a 125KHz wireless signal; if the access controller (1) resolves a matching 125K excitation identifier, it periodically transmits a 125KHz wireless signal at intervals.

6. The hospital hand hygiene monitoring method for reducing server computing power consumption according to claim 4, characterized in that, In step S4, after the receive timer expires, the access controller (1) disconnects and turns off the receive timer, and resumes continuous transmission of 125KHz wireless signals.

7. The hospital hand hygiene monitoring method for reducing server computing power consumption according to claim 4, characterized in that, In step S5, during the sleep state, the 125kHz wireless receiver module and interrupt handling circuit are powered on; the baseband processor module is awakened by the interrupt signal from the 125kHz wireless receiver module.

8. An electronic device, characterized in that... ,include: The device includes a memory and a processor, wherein the memory is coupled to the processor; the memory stores program instructions that, when executed by the processor, perform the hospital hand hygiene monitoring method for reducing server computing power consumption as described in any one of claims 4-7.

9. A computer-readable storage medium comprising a computer program, characterized in that... When the computer program is run on an electronic device, the electronic device performs the hospital hand hygiene monitoring method as described in any one of claims 4-7, which reduces server computing power consumption.

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