Intelligent bed unit local liquid existence monitoring system

Abstract

The invention discloses an intelligent bed unit local liquid existence monitoring system. The monitoring system comprises a main control board, a sensor, a capillary tube, an alarm device and alarm receiving terminal software, the system integrates drainage, liquid existence monitoring, acousto-optic and local area network alarm functions. According to the invention, liquid at a part needing to be monitored can be drained to the sensor through the capillary tube, when the sensor monitors the liquid, an alarm is given through the alarm device of the detector, and an alarm signal is sent to alarm receiving terminal software through a local area network, so that the device can monitor the liquid at the groin or catheter of a detected person; the problems of defecation, catheter seepage and the like occurring when a detected person is in a coma or sleep state can be found in time, so that the tidiness and comfort of a bed unit are guaranteed, related risks of catheter seepage are found in time, the nursing quality is improved, and the safety of a patient is guaranteed; the defects that an existing liquid monitor is inconvenient, and discomfort and even physiological damage are brought to a detected person are overcome.

Description

Technical Field

[0001] The present invention relates to the field of intelligent nursing care, and in particular to a local liquid presence monitoring system for an intelligent bed unit. Background Art

[0002] Pressure injuries, commonly known as pressure sores or bedsores, are local ischemia, hypoxia, and malnutrition of the skin and / or underlying tissues caused by sustained pressure or pressure combined with shear forces. The occurrence of pressure injuries is closely related to moisture. In medical care, the dampness of the bed unit caused by long-term failure to clean the patient's urine and feces in time will increase the moisture and temperature of the skin. When the skin surface is damp, the coefficient of friction between the bed sheet or other supporting surfaces will increase. This increased friction can make the surface of the skin more vulnerable to damage, especially when the patient is moved or transferred. The shear force between the skin and the supporting surface will also be more significant due to the increase in friction, causing the skin tissue to shift relative to the deeper tissue, further exacerbating tissue damage. Pressure injuries not only cause pain to patients, but also prolong hospital stays and increase medical costs.

[0003] Catheter leakage refers to the backflow or leakage of liquid along the catheter during the use of various medical catheters (such as urinary catheters, gastric tubes, etc.), causing local skin moisture or infection. This situation is more common in patients who have been bedridden for a long time, especially those with serious illnesses or after surgery. Catheter leakage not only causes skin damage and increases the risk of infection, but also may increase the humidity around the catheter, aggravating the local inflammatory response, thereby affecting the patient's recovery speed and quality.

[0004] Existing infiltration detection devices usually include large detection modules that are placed directly under the patient's body for monitoring. This design brings multiple problems: large detection modules under the patient may cause additional pressure, especially for patients who need to stay in bed for a long time, this pressure can increase the risk of pressure injuries. In addition, hard or bulky detection modules will reduce patient comfort.

[0005] In view of the serious consequences of bed unit moisture and catheter exudation on patients, it is particularly important to develop an intelligent bed unit local liquid presence monitoring system that can monitor in real time and respond quickly to these situations. The system proposed by the present invention uses capillary drainage technology to guide the liquid from the monitoring site to the sensor away from the patient's body surface, thereby avoiding the problem of placing a large detection module directly under the patient's body and reducing pressure and harm to the patient. The system can detect and alarm in time, helping medical staff to take quick measures to clean up moisture or exudation, thereby reducing the occurrence of pressure injuries, improving the quality of patient care, and ensuring the safety and comfort of patients. Summary of the invention

[0006] Purpose of the invention: In order to overcome the shortcomings of existing monitoring methods and improve the comfort of long-term bedridden people, the present invention proposes a local liquid presence monitoring system for smart bed units. The monitoring system uses capillaries to drain liquid, monitors the liquid through sensors, and issues an alarm in time.

[0007] Technical solution: The present invention provides a local liquid presence monitoring system for an intelligent bed unit, comprising a main control board, a sensor, a capillary tube, an alarm device and an alarm receiving terminal software.

[0008] The main control board includes the circuit board designed by the applicant and the Orange Pi Zero3 development board developed by Shenzhen Xunlong Software Co., Ltd.

[0009] The sensors include photoresistors and water seepage sensors.

[0010] The alarm device includes a buzzer, an LED light and a motor.

[0011] The alarm receiving terminal software can be installed on networked devices equipped with various common operating systems.

[0012] The photoresistor is connected to the input pin of the main control board; the water seepage sensor is connected to the input pin of the main control board; the buzzer is controlled by the output pin of the main control board; the LED is controlled by the output pin of the main control board; and the motor is controlled by the output pin of the main control board.

[0013] The capillary is used to guide the liquid from the desired detection site to the sensor, and an opening is opened in the capillary body, the opening is disposed at the water seepage sensor, and the unopened portion is disposed between the power indicator light and the photoresistor.

[0014] When no liquid flows through the capillary, the photoresistor is illuminated by the power indicator light and has a low resistance value. When liquid flows through the capillary and blocks the light of the power indicator light, the light intensity received by the photoresistor becomes weaker and the resistance value increases. The rate of change of resistance value varies depending on the different light transmittance of the liquid.

[0015] When no liquid flows through the capillary, the water seepage sensor outputs a low-level signal; when liquid flows through the capillary, the water seepage sensor senses the liquid through the opening on the capillary and outputs a high-level signal.

[0016] After receiving the signal from the photoresistor or water seepage sensor, the main control board automatically sends an alarm signal to the terminal equipped with the alarm receiving terminal software in the local area network through the built-in WLAN module; and controls the buzzer, LED light and motor through the output pin to realize timely alarm.

[0017] Working principle: The local liquid presence monitoring system of the smart bed unit of the present invention uses a capillary to drain the liquid from the required monitoring site to the sensor, wherein the opening of the capillary is set so that the liquid can effectively reach the water seepage sensor. The photoresistor in the system is illuminated by the power indicator light under normal conditions and is in a low resistance state. When liquid flows through the capillary, it blocks part of the light, causing the resistance of the photoresistor to increase. This change can be captured by the sensor and transmitted to the main control board. After receiving these signals, the main control board will immediately send an alarm signal to all networked alarm receiving terminals through the built-in WLAN module, and start the buzzer, LED light and motor for local alarm to ensure that medical staff or caregivers can respond in time.

[0018] Beneficial effects: Compared with the prior art, the present invention has the following advantages: (1) Improve patient comfort and safety: By separating the monitoring device from the patient's body surface, direct physical pressure on the patient is reduced, skin damage or discomfort caused by the device is reduced, and the ability to detect and deal with fluid leakage at an early stage is enhanced; (2) Improve monitoring accuracy and response speed: The design of this system allows for rapid response to tiny liquid changes. The dual detection mechanism of the photoresistor and water seepage sensor ensures the accuracy of monitoring, so that the alarm program can be quickly activated when moisture or seepage occurs; (3) Seamless integration and easy deployment: The system's main control board and sensors are efficiently connected through capillaries, simplifying the installation and maintenance process. The use of a built-in WLAN module enables the system to be easily connected to the existing hospital or home network environment without the need for additional hardware support, facilitating rapid deployment in a variety of care environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a local liquid presence monitoring system for an intelligent bed unit according to the present invention.

[0020] Figure 2 This is a circuit schematic designed by the applicant in a main control board of a local liquid presence monitoring system for an intelligent bed unit of the present invention.

[0021] Figure 3 It is the top layer of the circuit assembly diagram designed by the applicant in the main control board of the local liquid presence monitoring system of an intelligent bed unit of the present invention.

[0022] Figure 4 It is the top silk screen of the circuit assembly diagram designed by the applicant in the main control board of the local liquid presence monitoring system of the intelligent bed unit of the present invention.

[0023] Figure 5It is the bottom layer of the circuit assembly diagram designed by the applicant in the main control board of the local liquid presence monitoring system of an intelligent bed unit of the present invention.

[0024] Figure 6 It is the bottom silk screen of the circuit assembly diagram designed by the applicant in the main control board of the local liquid presence monitoring system of the intelligent bed unit of the present invention.

[0025] Figure 7 This is a circuit punching diagram designed by the applicant in a main control board of a local liquid presence monitoring system for an intelligent bed unit of the present invention. DETAILED DESCRIPTION

[0026] Installation steps: (1) Capillary placement: The user needs to place one end of the capillary tube in the area to be monitored, such as the patient's groin or catheter. Make sure the end of the capillary tube is properly connected to the sensor; (2) Equipment startup: Turn on the power of the local liquid presence monitoring system of the smart bed unit and ensure that all components such as the main control board and sensors are properly connected and functioning properly; (3) Software configuration: Install and start the corresponding monitoring software on the receiving terminal (such as a computer or mobile device), ensure that the device is connected to the same local area network as the monitoring system, and set the correct IP address and port of the monitoring device.

[0027] Operation process: (1) Daily monitoring: Once the system is started, it will automatically start to monitor the liquid status in the set area. The capillary will guide the liquid to the sensor. Once the liquid is detected, the system will send an alarm to the software through the local area network. The software on the receiving terminal will display the alarm information from the monitoring system, including the alarm time and liquid detection status; (2) Respond to alarms: When receiving an alarm, the user can view the alarm details and respond quickly, such as notifying medical staff for inspection and treatment. If it is confirmed to be a normal leakage (such as an expected medical condition), the user can continue to monitor; if it is an unexpected situation, further check whether the capillary and sensor are placed correctly; (3) System reset and maintenance: If the system needs to be reset or continued to be used after an alarm, the user can simply replace the capillary and then restart the device and software to continue normal monitoring; regularly check the status of the capillary and sensor to ensure that there is no damage or blockage to ensure monitoring accuracy.

[0028] The code for the main control board to broadcast the alarm signal to the local area network is as follows: import socket import time def send_alert(alert_message): """Send alarm information to all devices in the LAN""" # Using the broadcast address target_ip = "255.255.255.255" # broadcast address target_port = 5005 # Create a UDP socket sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) # Allow sending broadcast packets sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1) # Send alert information try: sock.sendto(alert_message.encode(), (target_ip, target_port)) print(f"Alert sent to {target_ip}:{target_port} - Message:{alert_message}") finally: sock.close() if __name__ == "__main__": alert_message = "Leakage detected on bed xx!" while True: send_alert(alert_message) time.sleep(30) The software code of the alarm receiving terminal is as follows: import socket def receive_alert(): # Create a UDP socket sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) sock.bind(("0.0.0.0", 5005)) # The IP of the monitoring device and the port number that the alarm receiving terminal listens to print("Listening for alerts on port 5005...") while True: data, addr = sock.recvfrom(1024) # Receive data print(f"Received alert from {addr}: {data.decode()}") # Print alarm information if __name__ == "__main__": receive_alert().

Claims

1. A local liquid presence monitoring system for an intelligent bed unit, characterized in that: It includes a main control board, a sensor, a capillary tube, an alarm device and an alarm receiving terminal software; the sensor includes a photoresistor and a water seepage sensor; the alarm device includes a buzzer, an LED light and a motor; the alarm receiving terminal can be installed in a networked device equipped with various common operating systems; The alarm device will give an audible and visual alarm when detecting a signal of liquid presence; The main control board of the alarm device is composed of a circuit board designed by the applicant and an Orange Pi Zero3 development board developed by Shenzhen Xunlong Software Co., Ltd. When the alarm receiving terminal receives the alarm signal sent by the main control board through the local area network, it will issue an alarm prompt.

2. The local liquid presence monitoring system for a smart bed unit according to claim 1, characterized in that: One end of the capillary opening is placed at the desired monitoring site to drain the liquid to the sensor, avoiding the pressure on the skin of the monitored person caused by placing the sensor directly at the monitoring site, reducing the possibility of related skin pressure damage, and improving the comfort of the monitored person. An opening is opened in the capillary body, and the opening is placed at the water seepage sensor, and the unopened position is placed between the power indicator light and the photoresistor.

3. The local liquid presence monitoring system for a smart bed unit according to claim 1, characterized in that: After the liquid is drained to the sensor, the intensity of the power light received by the photoresistor becomes weaker due to the obstruction of the liquid, thereby changing the resistance value and detecting water seepage.

4. The local liquid presence monitoring system for a smart bed unit according to claim 1, characterized in that: The water seepage sensor is conducted by the liquid drained from the capillary tube, outputs a high level, and detects water seepage.

5. The local liquid presence monitoring system for an intelligent bed unit according to claim 1, characterized in that: The input pins of the main control board are used to connect sensors. When a water seepage signal is detected from any sensor, a signal is sent to the output pin to control the alarm device connected to the output pin. The main control board also has a WLAN function, which sends the alarm signal to the alarm receiving terminal after connecting to the local area network.

6. The local liquid presence monitoring system for an intelligent bed unit according to claim 1, characterized in that: The buzzer will continue to beep after being triggered by a signal from the main control board.

7. The local liquid presence monitoring system of an intelligent bed unit according to claim 1, characterized in that: The LED will emit red light after being triggered by a signal from the main control board.

8. The local liquid presence monitoring system of a smart bed unit according to claim 1, characterized in that: The motor vibrates after being triggered by a signal from the main control board.

9. The local liquid presence monitoring system of an intelligent bed unit according to claim 1, characterized in that: The alarm receiving terminal monitors the alarm signal in the local area network in real time through the Python script, and when the alarm signal sent by the main control board is received, the user who is using the terminal is immediately alerted.

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