Millimeter wave radar device and system for off-bed monitoring of inpatient

Abstract

The invention relates to the technical field of medical monitoring, in particular to a millimeter-wave radar device and a millimeter-wave radar system for off-bed monitoring of an inpatient. Comprising a data acquisition module, a data processing module, a service module and a display module. The data acquisition module is used for acquiring the position of a patient through the millimeter wave radar device and transmitting data to the data processing module. According to the millimeter-wave radar device and the millimeter-wave radar system for off-bed monitoring of the inpatient, through cooperation of the base, the fixing plate, the radar detector and the magnet, the millimeter-wave radar device is small and portable in use, can be quickly mounted, can be flexibly operated by taking down the fixing plate when not in use, can be flexibly mounted on a bed head or a wall of the patient, and is convenient to use. The system does not need to be worn by a patient, does not cause any discomfort to the patient, and realizes remote transmission, centralized management and analysis of data by networking monitoring equipment through the Internet of Things technology and adopting a non-contact monitoring mode.

Description

Technical Field

[0001] The present invention relates to the field of medical monitoring technology, and in particular to a millimeter wave radar device and a system thereof for monitoring hospitalized patients leaving bed. Background Art

[0002] Inpatient falls refer to the unforeseen fall to the ground or to a place lower than the initial position in any place in the medical institution, with or without trauma. In-hospital falls are an accidental injury that can be avoided, but they are one of the common medical accidents and adverse events in hospitals, which seriously affect patient safety and have a significant impact on patients' quality of life and medical safety. At present, the routine prevention of inpatient fall risks in clinical practice is mainly carried out by nurses. The main preventive measures include health education, posting fall prevention signs on beds, setting up safety facilities, providing psychological intervention for patients, strengthening patient condition monitoring, providing daily care for patients, and helping patients with rehabilitation training. These measures can achieve certain results, but conventional interventions have problems such as inadequate and untimely implementation by managers and lack of pertinence, and cannot achieve satisfactory results.

[0003] With the deep integration of "IoT + healthcare", IoT technology is gradually being used to prevent and monitor patient falls. In the past, bed exit monitoring systems required installing pressure sensors under mattresses or sheets or requiring patients to wear specific devices or sensors to monitor position and activity to detect whether the patient was in bed. This monitoring method relies on the patient's good compliance with medical treatment, and wearing the device for a long time may cause discomfort.

[0004] Infrared detectors are also used to monitor heat changes around the bed to determine whether the patient has left the bed. However, infrared rays cannot pass through optical materials such as glass and water for detection and are easily affected by environmental factors. Changes in light, temperature and humidity may affect the performance of infrared sensors. For example, changes in lighting or temperature fluctuations may cause false alarms or missed alarms, resulting in inaccurate monitoring results.

[0005] In addition, although infrared monitoring only produces shadows and not images, it may cause some privacy concerns regarding the patient's private activities.

[0006] To this end, a millimeter wave radar device and a system thereof for monitoring hospitalized patients leaving bed are designed to provide another technical solution to the above technical problems. Summary of the invention

[0007] Based on this, it is necessary to provide a millimeter wave radar device and a system thereof for monitoring hospitalized patients leaving bed, in order to solve the technical problems raised by the above-mentioned background technology.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A millimeter wave radar system for monitoring hospitalized patients leaving their beds, comprising a data acquisition module, a data processing module, a service module and a display module;

[0010] The data acquisition module is used to collect the patient's position through the millimeter wave radar device and transmit the data to the data processing module;

[0011] The service module is used to bind the patient's identity and perform authority control based on the patient's information;

[0012] The display module is used for medical personnel to detect the patient's status and control the equipment.

[0013] As a preferred embodiment of the millimeter wave radar system for monitoring hospitalized patients leaving bed provided by the present invention, the data processing module is used to determine whether the patient has left bed based on the information collected by the data collection module;

[0014] The data processing module includes a data receiving and preprocessing module, a data analysis and status judgment module, a real-time monitoring and alarm triggering module, and a data storage and backup module;

[0015] The data receiving and preprocessing module is used to clean the data information transmitted by the data acquisition module, thereby completing the preprocessing;

[0016] The data analysis and status judgment module is used to analyze the data and judge whether the patient has left the bed according to preset rules and logic;

[0017] The real-time monitoring and alarm triggering module is used to immediately trigger the alarm mechanism and notify medical staff when detecting that the patient has left the bed;

[0018] The data storage and backup module is used to store the processed data for future query and analysis.

[0019] A millimeter wave radar device for monitoring hospitalized patients leaving bed, used for any of the above items, the millimeter wave radar device comprises a base, a fixing plate and a radar detector, the fixing plate is slidably connected to the interior of the top of the base, and the radar detector is fixed to one side of the fixing plate.

[0020] As a preferred implementation of the millimeter wave radar device for monitoring hospitalized patients leaving bed provided by the present invention, magnets are fixed at both ends of the bottom of the base.

[0021] As a preferred implementation of the millimeter wave radar device for monitoring hospitalized patients leaving bed provided by the present invention, a circuit board is installed inside the fixing plate, and the radar detector is connected to the circuit board through a wire.

[0022] As a preferred embodiment of the millimeter wave radar device for monitoring hospitalized patients leaving bed provided by the present invention, a monitoring module and an information management module are fixed inside the radar detector;

[0023] The monitoring module is used to detect whether the patient is in bed;

[0024] The information management module is used to remind medical staff through voice prompts after receiving information from the monitoring module, and to record the time when the patient leaves the bed.

[0025] As a preferred embodiment of the millimeter wave radar device for monitoring hospitalized patients leaving bed provided by the present invention, the detection module includes a 24GHz millimeter wave radar module, a control module and a signal transmission module;

[0026] The 24GHz millimeter wave radar module is used to detect the bed leaving signal through radar wave scanning reflected signal and transmit it to the control module;

[0027] The control module is used to send the information to the information management module through the signal transmission module after processing the information provided by the 24GHz millimeter wave radar module.

[0028] As a preferred implementation of the millimeter wave radar device for monitoring hospitalized patients leaving bed provided by the present invention, the signal transmission module is a WiFi module or a 4G module.

[0029] As a preferred embodiment of the millimeter-wave radar device for monitoring hospitalized patients leaving bed provided by the present invention, a control component is fixed on the fixed plate, and the control component includes a battery, an antenna, an alarm reset button, a power light, a WI FI light, a 4G light, a Bluetooth light and an alarm light. The antenna is bolted to one end of the top of the fixed plate, an alarm reset button is provided on one side of the top end of the fixed plate, a battery is fixed inside the fixed plate, a charging port is provided on one side of the other end of the top of the fixed plate, and the power light, WI FI light, 4G light, Bluetooth light and alarm light are fixed to the other end of the bottom of the fixed plate in sequence from one side to the other side.

[0030] It can be seen without a doubt that the above-mentioned technical solution of the present application can definitely solve the technical problem to be solved by the present application.

[0031] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects:

[0032] The present invention provides a millimeter wave radar device and system for monitoring hospitalized patients leaving their beds. The device is compact and portable when in use, and can be quickly installed by cooperating with a base, a fixing plate, a radar detector, and a magnet. The device can be easily operated by removing the fixing plate when not in use. The device can be flexibly installed on the patient's bedside or on a wall without the patient having to wear the device, and will not cause any discomfort to the patient. The device is connected to the Internet of Things (IoT) technology, and a non-contact monitoring method is adopted to realize remote transmission, centralized management, and analysis of data.

[0033] Through the setting of the device, the safety management of hospital wards can be improved. Through real-time monitoring and intelligent alarm, falls can be effectively prevented, the workload of medical staff can be reduced, and nursing efficiency can be improved. At the same time, patient privacy can be protected, the risk of medical accidents can be reduced, and data support can be provided to hospitals to optimize resource allocation and nursing processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0035] Figure 1 is a flow chart of the present invention;

[0036] Figure 2 A circuit diagram of the present invention;

[0037] Figure 3 is a flowchart of the use of the present invention;

[0038] Figure 4 It is a schematic diagram of the service module flow of the present invention;

[0039] Figure 5 This is a schematic diagram of the overall structure of Embodiment 2 of the present invention;

[0040] Figure 6 It is a schematic diagram of the structure of the magnet of the present invention;

[0041] Figure 7 It is a structural schematic diagram of the fixing plate of the present invention.

[0042] In the figure: 1. base; 2. fixing plate; 3. radar detector; 4. magnet. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0045] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0046] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0047] Embodiment 1

[0048] Reference Figure 1-Figure 4 , a millimeter wave radar system for monitoring hospitalized patients leaving their beds, comprising a data acquisition module, a data processing module, a service module and a display module;

[0049] The data acquisition module is used to collect the patient's position through a millimeter wave radar device and transmit the data to the data processing module;

[0050] The data processing module is used to determine whether the patient has left the bed based on the information collected by the data collection module;

[0051] The data processing module includes a data receiving and preprocessing module, a data analysis and status judgment module, a real-time monitoring and alarm triggering module, and a data storage and backup module;

[0052] The data receiving and preprocessing module is used to clean the data information transmitted by the data acquisition module, thereby completing the preprocessing;

[0053] The data analysis and status judgment module is used to analyze the data and determine whether the patient has left the bed according to the preset rules and logic;

[0054] The real-time monitoring and alarm triggering module is used to immediately trigger the alarm mechanism and notify medical staff when the patient leaves the bed. At the same time, this process includes recording the timestamp of the event, the patient's identity information, and detailed information of the bed leaving event;

[0055] The data storage and backup module is used to store the processed data for future query and analysis. At the same time, the system will perform data backup regularly to ensure the security and integrity of the data;

[0056] The service module is used to bind the patient's identity and perform permission control based on the patient's information, and then identity authentication can be performed through account login, face recognition, etc.;

[0057] The service module includes backend service module, business logic processing module, database management module and identity authentication and authorization module;

[0058] Back-end service module: Use SpringBoot as the back-end development framework. SpringBoot provides RESTful APIs, which are interfaces for front-end applications to interact with back-end services.

[0059] Business logic processing module: implements business logic such as patient monitoring, alarm triggering, and data recording;

[0060] Database management module: Use MySQL to store patient information, monitoring data and system configuration;

[0061] Authentication and authorization module: Integrate SpringSecurity to implement user authentication and permission control.

[0062] The display module is used to allow medical staff to detect the patient's status and control the equipment;

[0063] The display module includes a web interface and a mobile application;

[0064] The web interface is used for front-end applications built on Vue.js. Medical staff access the front-end management system through a web browser to perform configuration operations and monitoring.

[0065] Mobile applications are used to provide Android platform applications to facilitate medical staff to monitor patient status.

[0066] When in use, medical staff can monitor the data information of the 24GHz millimeter-wave radar by logging in to the Web end or the mobile application end. After the medical staff installs the 24GHz millimeter-wave radar device on the bedside of the hospital bed, the 24GHz millimeter-wave radar will automatically connect to the back-end service for device authentication according to the set mode after it is turned on. If the authentication fails, it will wait for the medical staff to set the configuration information before performing device authentication; if the authentication is successful, it will work normally. After the patient leaves the bed, the 4G module or WiFi module in the set mode will send the patient's bed leaving information to the back-end service in time through the MQTT service. The back-end service will respond to the device alarm notification module in time after processing the data according to the data processing module, and transfer the data to the data storage module; the data storage module will store the data in the database corresponding to the MySq l database according to the data type. After receiving the alarm information, the device alarm notification module will notify the medical staff through the Web end or the mobile application end; after receiving the patient leaving the bed alarm, the medical staff will go to the patient's bed in time to check, and click the confirmation button on the 24GHz millimeter-wave radar to notify the back-end service that it has confirmed whether the patient has left the bed.

[0067] refer to Figure 2 , including a power supply voltage stabilizing circuit module, a 24GHz millimeter wave radar module, a central processing unit, a WiFi module and a 4G communication module. One end of the power supply voltage stabilizing circuit module is connected to the central processing unit, the bottom of the central processing unit is connected to the 4G communication module, the central processing unit is connected to the WiFi module, and one end of the central processing unit is connected to the 24GHz millimeter wave radar module through a pin header socket;

[0068] Power supply mode: The external 5V voltage enters the power supply voltage regulator circuit module through the DC power socket on the monitor. One route is the RT9013-33GB chip output regulated 3.3V to supply the central processor (ESP32S3), and the other route is the JW5359M chip output regulated 3.8V to supply the 4G module. In addition, the 5V voltage is connected to the 24GHz millimeter wave radar module through the insurance circuit.

[0069] Signal transmission: The 24GHz millimeter-wave radar module is connected to the UART interface of the central processor (ESP32S3) through the UART interface through the 2.54m pin header socket, and sends the data to the central processor (ESP32S3). The central processor (ESP32S3) then sends the data to the server through the Wi F i module according to the set mode, or connects to the UART interface of the 4G module through the UART1 interface and then sends the data to the server by the 4G module.

[0070] Embodiment 2

[0071] refer to Figure 5-Figure 7 On the basis of the above-mentioned embodiment 1, a millimeter-wave radar device for monitoring hospitalized patients leaving their beds is disclosed. The millimeter-wave radar device includes a base 1, a fixing plate 2, a radar detector 3 and a magnet 4. Magnets 4 are fixed to both ends of the bottom of the base 1, so that the base 1 can be adsorbed on a position such as a bedside through the magnet 4. The top of the base 1 is slidably connected to the fixing plate 2, so that the fixing plate 2 can be installed inside the top of the base 1 through a sliding connection. The radar detector 3 is fixed to one side of the fixing plate 2, so that the patient can be detected through the radar detector 3. When in use, the base 1 can be first fixed to the wall or fixed to the bedside through magnetic attraction, with the groove facing upward, and then the fixing plate 2 can be installed inside the top of the base 1 through sliding. It is fast and convenient. The fixing plate 2 can be removed when not in use, and the operation is flexible.

[0072] In other embodiments, a transition assembly may be provided between the base 1 and the fixing plate 2 so that the fixing plate 2 can be more stable inside the base 1 to prevent it from slipping off.

[0073] In this embodiment, the base 1 and the fixing plate 2 are both 3D printed with light-curing materials, so that they are lightweight and easy to carry.

[0074] A circuit board is installed inside the fixing plate 2, and the radar detector 3 is connected to the circuit board through a wire, so that the radar detector 3 is used to detect whether the patient leaves the bed, and a monitoring module and an information management module are fixed inside the radar detector 3;

[0075] The monitoring module is used to detect whether the patient is in bed;

[0076] The detection module includes a 24GHz millimeter wave radar module, a control module and a signal transmission module;

[0077] The 24GHz millimeter wave radar module is used to detect the bed leaving signal through radar wave scanning reflected signal and transmit it to the control module;

[0078] The control module is used to send the information from the 24GHz millimeter wave radar module to the information management module through the signal transmission module after processing the information;

[0079] The signal transmission module is a WiFi module or a 4G module, so that the signal transmission module transmits the signal of the control module to the information management module through the WiFi or 4G network;

[0080] The information management module is used to remind medical staff through voice prompts after receiving information from the monitoring module, and record the time when the patient leaves the bed.

[0081] A control component is fixed on the fixed plate 2, and the control component includes a battery, an antenna, an alarm reset button, a power light, a WIFI light, a 4G light, a Bluetooth light and an alarm light. The antenna is fixed by bolts at one end of the top of the fixed plate 2, and an alarm reset button is provided on one side of the top end of the fixed plate 2. A battery is fixed inside the fixed plate 2, and a charging port is provided on one side of the other end of the top of the fixed plate 2, so that the battery can be charged, so that the device can be used passively, and the power light, WIFI light, 4G light, Bluetooth light and alarm light are fixed in sequence at the other end of the bottom of the fixed plate 2 from one side to the other side, so that the user can be directly displayed whether the power is on by whether the power light, WI FI light, 4G light, Bluetooth light and alarm light are illuminated.

[0082] The use process of a millimeter wave radar device for monitoring hospitalized patients leaving bed provided by the present invention is as follows: when in use, first fix the base 1 on the wall or on the head of the bed by magnetic attraction, with the groove facing upward, and then slide the fixing plate 2 to the inside of the top of the base 1, which is quick and convenient. When not in use, the fixing plate 2 can be removed, and the operation is flexible. Therefore, whether the patient is in bed is detected by the monitoring module in the radar detector 3, and at the same time, the 24GHz millimeter wave radar module in the detection module detects the bed leaving signal through radar wave scanning reflected signal and transmits it to the control module; and after processing the information given by the 24GHz millimeter wave radar module, the control module sends the information to the information management module through the signal transmission module; the information management module is used to remind medical staff through voice prompts after receiving the information from the monitoring module, and record the patient's bed leaving time.

[0083] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the present invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A millimeter wave radar system for monitoring hospitalized patients leaving bed, characterized in that: It includes data collection module, data processing module, service module and display module; The data acquisition module is used to collect the patient's position through the millimeter wave radar device and transmit the data to the data processing module; The service module is used to bind the patient's identity and perform authority control based on the patient's information; The display module is used for medical personnel to detect the patient's status and control the equipment.

2. A millimeter wave radar system for monitoring inpatient bed exit according to claim 1, characterized in that: The data processing module is used to determine whether the patient has left the bed based on the information collected by the data collection module; The data processing module includes a data receiving and preprocessing module, a data analysis and status judgment module, a real-time monitoring and alarm triggering module, and a data storage and backup module; The data receiving and preprocessing module is used to clean the data information transmitted by the data acquisition module, thereby completing the preprocessing; The data analysis and status judgment module is used to analyze the data and judge whether the patient has left the bed according to preset rules and logic; The real-time monitoring and alarm triggering module is used to immediately trigger the alarm mechanism and notify medical staff when detecting that the patient has left the bed; The data storage and backup module is used to store the processed data for future query and analysis.

3. A millimeter wave radar device for monitoring hospitalized patients leaving bed, used in the millimeter wave radar system for monitoring hospitalized patients leaving bed according to any one of claims 1-2, characterized in that: The millimeter wave radar device comprises a base (1), a fixing plate (2) and a radar detector (3); the fixing plate (2) is slidably connected to the interior of the top of the base (1), and the radar detector (3) is fixed to one side of the fixing plate (2).

4. A millimeter wave radar device for monitoring inpatients leaving bed according to claim 3, characterized in that: Magnets (4) are fixed at both ends of the bottom of the base (1).

5. The millimeter wave radar device for monitoring hospitalized patients leaving bed according to claim 3, characterized in that: A circuit board is installed inside the fixing plate (2), and the radar detector (3) is connected to the circuit board via a wire.

6. The millimeter wave radar device for monitoring inpatients leaving bed according to claim 3, characterized in that: A monitoring module and an information management module are fixed inside the radar detector (3); The monitoring module is used to detect whether the patient is in bed; The information management module is used to remind medical staff through voice prompts after receiving information from the monitoring module, and to record the time when the patient leaves the bed.

7. A millimeter wave radar device for monitoring inpatients leaving bed according to claim 6, characterized in that: The detection module includes a 24GHz millimeter wave radar module, a control module and a signal transmission module; The 24GHz millimeter wave radar module is used to detect the bed leaving signal through radar wave scanning reflected signal and transmit it to the control module; The control module is used to send the information to the information management module through the signal transmission module after processing the information provided by the 24GHz millimeter wave radar module.

8. The millimeter wave radar device for monitoring hospitalized patients leaving bed according to claim 7, characterized in that: The signal transmission module is a WiFi module or a 4G module.

9. The millimeter wave radar device for monitoring hospitalized patients leaving bed according to claim 3, characterized in that: A control component is fixed on the fixing plate (2), and the control component includes a battery, an antenna, an alarm reset button, a power light, a WIFI light, a 4G light, a Bluetooth light and an alarm light. The antenna is bolted to one end of the top of the fixing plate (2), an alarm reset button is arranged on one side of the top end of the fixing plate (2), a battery is fixed inside the fixing plate (2), a charging port is arranged on one side of the other end of the top of the fixing plate (2), and a power light, a WIFI light, a 4G light, a Bluetooth light and an alarm light are fixed to the other end of the bottom of the fixing plate (2) in sequence from one side to the other side.

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