Medical intelligent gas leakage detection system

Abstract

The utility model relates to the technical field of gas leakage detection, in particular to a medical intelligent gas leakage detection system. Comprising a gas supply pipeline and a gas cylinder which are arranged in a hospital; the signal acquisition sensors are arranged on the gas supply pipeline through a field bus, and each signal acquisition sensor is arranged corresponding to a valve port of each gas cylinder and a connector of the connecting pipeline; the positioning module is arranged near the signal acquisition sensor; the multi-channel gas electromagnetic valve is arranged at a gas cylinder valve port; the gas detection module is wirelessly connected with the signal acquisition sensor; and the PLC is connected with the gas detection module through a serial port and is electrically connected with the positioning module and the multi-channel gas electromagnetic valve. The problem that a hospital gas detection system has defects in the aspects of intelligence and false alarm control is solved, and meanwhile the leakage position can be positioned.

Description

Technical Field

[0001] The utility model relates to the technical field of gas leakage detection, in particular to a medical intelligent gas leakage detection system. Background Art

[0002] In modern healthcare, hospital gas supply systems play a vital role. Various medical gases, such as oxygen, nitrous oxide, nitrogen, and ethylene oxide, provide essential support for patient treatment, surgery, and the sterilization of surgical instruments. However, ensuring the safe use of these gases and preventing gas leaks are key issues in hospital management, making gas detection systems indispensable in hospital environments.

[0003] Currently, many hospitals use traditional gas detection systems that are not intelligent enough. These systems often consist of independent sensors, controllers, and alarms, with loose connections between the various devices and a lack of effective integration and collaborative working capabilities.

[0004] On the one hand, the system's lack of intelligence prevented it from automatically diagnosing its own operating status. On the other hand, the system lacked effective data exchange and integration with other hospital management systems. Gas detection data couldn't be promptly fed back into the hospital's overall management system, effectively locating leaks and limiting the hospital's comprehensive safety monitoring and decision-making capabilities. For example, when the gas detection system sounded an alarm, it couldn't automatically transmit the information to the hospital's emergency response center and relevant departments, resulting in inefficient emergency response.

[0005] Furthermore, existing gas detection systems are prone to false alarms, causing significant disruption to hospital operations. Hospital environments are complex and diverse, and many gases leak during use. Sometimes, a simple leak can cause sensors to generate erroneous signals, triggering false alarms. This can lead to a decrease in hospital trust in the alarm system.

[0006] To sum up, hospital gas detection systems have shortcomings in intelligence and false alarm control. Developing more intelligent, accurate and reliable gas detection systems has become a current need for hospital construction and management. Utility Model Content

[0007] In order to solve the problems of insufficient intelligence and false alarm control of hospital gas detection systems, the utility model provides a medical intelligent gas leak detection system.

[0008] In a first aspect, the present invention provides a medical intelligent gas leak detection system, comprising:

[0009] Gas supply pipelines and cylinders installed in the hospital;

[0010] Multiple signal acquisition sensors are installed on the gas supply pipeline through the field bus, and each signal acquisition sensor is installed corresponding to the valve port and the connecting pipe interface of each gas cylinder;

[0011] A positioning module is provided near the signal acquisition sensor;

[0012] A multi-channel gas solenoid valve is provided at the valve port of the gas cylinder;

[0013] Gas detection module, wirelessly connected to the signal acquisition sensor;

[0014] The PLC controller is connected to the gas detection module via a serial port, and is electrically connected to the positioning module and the multi-channel gas solenoid valve.

[0015] Furthermore, the gas detection module includes:

[0016] The detection data unit is connected to the signal acquisition sensor through a wireless receiver and a wireless transmitter, and is used to receive the gas leakage data output by the wireless transmitter and call the historical gas leakage concentration data.

[0017] The microprocessor is connected to the PLC controller through the serial port, and outputs alarm data after comparing the historical gas leakage concentration data with the gas leakage data.

[0018] Furthermore, the detection data unit includes an A / D converter, a historical data storage and a timing module.

[0019] Furthermore, the signal acquisition sensor includes sensors for detecting oxygen, nitrogen, and ethylene oxide.

[0020] Furthermore, the positioning module includes an alarm indicator light and a Bluetooth locator, and the Bluetooth locator is electrically connected to the PLC controller and is used to upload location information to the PLC controller.

[0021] Furthermore, the alarm indicator light is an audible and visual alarm, which includes a buzzer and a flashing light.

[0022] Furthermore, the serial port adopts RS485 communication protocol to realize interactive communication between the PLC controller and the gas detection module, and the wireless transmitter and the wireless receiver adopt WIFI communication protocol.

[0023] Furthermore, the PLC controller is electrically connected to a GSM module, and the GSM module is used to send an alarm text message to the user.

[0024] Furthermore, the PLC controller is connected to the server via Ethernet, and the server is electrically connected to the display.

[0025] Furthermore, one end of the PLC controller and the input end of the positioning module are both connected to a power supply, and the power supply adopts a UPS power supply.

[0026] In summary, the present invention has the following beneficial technical effects:

[0027] This utility model provides a medical intelligent gas leak detection system with multiple signal acquisition sensors installed on the gas supply pipeline via a fieldbus, corresponding to the cylinder valve opening and the connecting pipe interface, to collect gas data. The Bluetooth locator in the positioning module is electrically connected to the PLC controller, uploading location information to the controller. Combined with the alarm indicator, the system can quickly and accurately determine the location of gas leaks. The interconnection of the multi-channel gas solenoid valve, gas detection module, and PLC controller enables efficient control and data exchange.

[0028] 2. The microprocessor in the gas detection module can compare historical gas leakage concentration data with real-time collected data and output alarm data, reducing false alarms caused by normal leakage or environmental factors during use and improving detection accuracy.

[0029] 3. The PLC controller is electrically connected to the GSM module, which can send alarm text messages to users and promptly notify relevant personnel. It is connected to the server via Ethernet, and the server is electrically connected to the display, which can display test data in real time, facilitating comprehensive monitoring in the hospital. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a medical intelligent gas leak detection system according to an embodiment of the present utility model.

[0031] Figure 2 It is a structural diagram of a gas detection module according to an embodiment of the present utility model.

[0032] Figure 3 It is a structural diagram of a positioning module according to an embodiment of the present utility model.

[0033] Figure 4 It is an expanded schematic diagram of a medical intelligent gas leak detection system according to an embodiment of the present utility model.

[0034] Among them, 1. pipeline; 2. gas cylinder; 3. gas solenoid valve; 4. positioning module; 401. alarm indicator light; 402. buzzer; 403. flash light; 404. Bluetooth locator; 5. signal acquisition sensor; 6. wireless transmitter; 7. wireless receiver; 8. gas detection module; 801; detection data unit; 802. A / D converter; 803. historical data storage; 804. timing module; 805. microprocessor; 9. serial port; 10. PLC controller; 11. GSM module; 12. UPS power supply; 13. server; 14. display. DETAILED DESCRIPTION

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

[0036] Example 1

[0037] Reference Figure 1 , a medical intelligent gas leak detection system of this embodiment includes:

[0038] Gas supply pipelines and gas cylinders 2 installed in the hospital;

[0039] Multiple signal acquisition sensors 5 are arranged on the gas supply pipeline through the field bus, and each signal acquisition sensor 5 is respectively arranged corresponding to the valve port of each gas cylinder 2 and the interface of the connecting pipeline 1;

[0040] The positioning module 4 is arranged near the signal acquisition sensor 5;

[0041] A multi-channel gas solenoid valve 3 is provided at the valve port of the gas cylinder 2;

[0042] The gas detection module 8 is wirelessly connected to the signal acquisition sensor 5;

[0043] The PLC controller 10 is connected to the gas detection module 8 via the serial port 9 , and is electrically connected to the positioning module 4 and the multi-channel gas solenoid valve 3 .

[0044] Reference Figure 2 , the gas detection module 8 includes:

[0045] The detection data unit 801 is connected to the signal acquisition sensor 5 through the wireless receiver 7 and the wireless transmitter 6, and is used to receive the gas leakage data output by the wireless transmitter 6 and call the historical gas leakage concentration data.

[0046] The microprocessor 805 is connected to the PLC controller 10 via the serial port 9, and outputs alarm data after comparing the historical gas leakage concentration data with the gas leakage data.

[0047] The detection data unit 801 includes an A / D converter 802 , a historical data storage 803 and a timing module 804 .

[0048] The signal acquisition sensor 5 includes sensors for detecting oxygen, nitrogen, and ethylene oxide.

[0049] Reference Figure 3 The positioning module 4 includes an alarm indicator light 401 and a Bluetooth locator 404 . The Bluetooth locator 404 is electrically connected to the PLC controller 10 and is used to upload location information to the PLC controller 10 .

[0050] The alarm indicator light 401 is an audible and visual alarm, which includes a buzzer 402 and a flashing light 403 .

[0051] The serial port 9 uses the RS485 communication protocol to realize the interactive communication between the PLC controller 10 and the gas detection module 8, and the wireless transmitter 6 and the wireless receiver 7 use the WIFI communication protocol.

[0052] Reference Figure 4 The PLC controller 10 is electrically connected to the GSM module 11, and the GSM module 11 is used to send an alarm text message to the user.

[0053] The PLC controller 10 is connected to the server 13 via Ethernet, and the server 13 is electrically connected to the display 14 .

[0054] One end of the PLC controller 10 and the input end of the positioning module 4 are both connected to a power supply, and the power supply is a UPS power supply 12 .

[0055] For the oxygen sensor, the MQ-137 semiconductor gas sensor is selected. It features high sensitivity and low power consumption, enabling accurate detection of oxygen concentration changes. For the nitrogen sensor, the MQ-8 sensor is used, offering excellent nitrogen detection performance. For the ethylene oxide sensor, the ETO-2 electrochemical sensor is selected, enabling accurate detection of ethylene oxide concentration. The Bluetooth locator 404 uses the XY-BLE10 Bluetooth positioning device, and the audible and visual alarm uses the LTE-1101J. The multi-channel gas solenoid valve 3 uses the VX2300 multi-channel solenoid valve. The wireless receiver 7 and wireless transmitter 6 use the ESP8266 Wi-Fi module. The microprocessor 805 uses the STM32F103 series microcontroller. The GSM module uses the SIM800C module, supporting the GSM network and enabling reliable SMS text message transmission. The PLC controller uses Siemens S7-1200 and the microprocessor 805 uses STM32F103 series microcontroller.

[0056] The signal acquisition sensor 5 transmits the collected gas concentration data to the wireless transmitter 6 via the field bus, and the wireless transmitter 6 then sends the data to the wireless receiver 7 in the gas detection module 8 via the WIFI communication protocol.

[0057] The microprocessor 805 in the gas detection module 8 transmits the alarm data to the PLC controller via the RS485 communication protocol.

[0058] The PLC controller sends instructions to the Bluetooth locator 404 via an electrical connection, and the Bluetooth locator 404 feeds back the location information to the PLC controller via an electrical connection. The alarm indicator 401 (sound and light alarm) is directly controlled by the PLC controller to turn on or off via an electrical connection.

[0059] The PLC controller sends a control signal to the multi-channel gas solenoid valve 3 through an electrical connection to control it to open or close.

[0060] The PLC controller transmits the alarm information to the GSM module through electrical connection, and the GSM module sends an alarm SMS to the user through the GSM network.

[0061] The PLC controller transmits the gas leakage data and location information to the server 13 via Ethernet.

[0062] During operation, gas supply pipelines and gas cylinders 2 are deployed near various hospital departments and operating rooms. Signal acquisition sensors 5 are installed at the valve port of each gas cylinder 2 and at the interface of the gas supply pipeline's connecting pipe 1. For example, at the valve port of an oxygen cylinder 2 in the operating room, an oxygen sensor monitors oxygen leaks in real time. Simultaneously, a positioning module 4 is installed nearby, and the wireless receiver 7 in the gas detection module 8 continuously receives gas leakage data output by the wireless transmitter 6 of each signal acquisition sensor 5.

[0063] The wireless receiver 7 continuously monitors the gas leakage data output by the wireless transmitter 6 of the signal acquisition sensor 5. Upon receiving the data signal, it first undergoes amplification and filtering to remove any interference and ensure the accuracy and reliability of the received data. This preliminarily processed data is then transmitted to the A / D converter 802. Based on a preset sampling frequency and accuracy, the A / D converter 802 converts the analog gas leakage data into a digital signal. For oxygen concentration detection, the analog voltage signal output by the sensor is converted into a corresponding digital value representing the oxygen concentration level.

[0064] The historical data storage 803 stores historical gas leakage concentration data in a specific data format and structure, including timestamp, gas type, concentration value and other information. The timing module 804 can automatically trigger the update and storage of historical data according to the time interval set by the system. It is set to collect the current gas leakage data every ten minutes and store it in the historical data storage 803, while cleaning and sorting the old data.

[0065] When the detected concentration exceeds the historical data, the microprocessor 805 accesses the historical data memory 803 through specific instructions and addresses, and quickly reads the required historical gas leakage concentration data for comparison with the currently detected data.

[0066] The microprocessor 805 is connected to the PLC controller via serial port 9 and receives commands and data from the PLC controller at any time. These commands include operation commands such as starting detection, stopping detection, and adjusting parameters.

[0067] After receiving the gas leak data, the microprocessor 805 first analyzes and verifies the data to ensure its integrity and accuracy. If any errors or anomalies are found in the data, the microprocessor 805 will send feedback to the PLC controller, requesting retransmission of the data or error handling.

[0068] Microprocessor 805 compares the currently received gas leakage data with the historical gas leakage concentration data read from historical data storage 803. For example, to determine an oxygen leak, microprocessor 805 can calculate the difference between the current oxygen concentration and the historical average oxygen concentration. If the difference exceeds a certain threshold, such as 20% of the historical average concentration, it determines that an abnormal leak may exist. Microprocessor 805 can also analyze the trends of historical data to determine whether the current leakage conforms to normal usage trends.

[0069] When the microprocessor 805 determines that an abnormal leakage occurs, it will immediately output alarm data so that the PLC controller can take corresponding alarm and control measures.

[0070] After outputting the alarm data, the microprocessor 805 will continue to monitor the gas leak, update the detection results in real time, and adjust the alarm level and treatment measures accordingly. If the leak is under control, the microprocessor 805 will send a signal to the PLC controller to release the alarm, so that the system can resume normal operation.

[0071] The PLC receives the alarm data and sends a signal to the Blue Night locator. The Bluetooth locator 404 uploads the location information to the PLC controller. The flashlight 403 in the alarm indicator 401 begins to flash, and the buzzer 402 sounds an alarm. After receiving the alarm data, the PLC controller sends an alarm text message via the GSM module to the relevant management personnel, informing them to take timely action. Furthermore, the data is transmitted via Ethernet to the server 13, which then displays the data on the display 14. This allows the hospital's security monitoring center to view the gas leak status and location information in real time. Simultaneously, the PLC controller 10 controls the multi-channel gas solenoid valve 3 to close the corresponding valve port of the gas cylinder 2 to prevent further gas leakage.

[0072] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A medical intelligent gas leak detection system, characterized in that: include: Gas supply pipelines and cylinders installed in the hospital; Multiple signal acquisition sensors are installed on the gas supply pipeline through the field bus, and each signal acquisition sensor is installed corresponding to the valve port and the connecting pipe interface of each gas cylinder; A positioning module is provided near the signal acquisition sensor; A multi-channel gas solenoid valve is provided at the valve port of the gas cylinder; Gas detection module, wirelessly connected to the signal acquisition sensor; The PLC controller is connected to the gas detection module via a serial port, and is electrically connected to the positioning module and the multi-channel gas solenoid valve; The gas detection module comprises: A detection data unit is connected to a signal acquisition sensor via a wireless receiver and a wireless transmitter, and is used to receive gas leakage data output by the wireless transmitter and simultaneously call historical gas leakage concentration data; The microprocessor is connected to the PLC controller through the serial port, and outputs alarm data after comparing the historical gas leakage concentration data with the gas leakage data; The detection data unit includes an A / D converter, a historical data storage and a timing module.

2. A medical intelligent gas leak detection system according to claim 1, characterized in that: The signal acquisition sensor includes sensors for detecting oxygen, nitrogen, and ethylene oxide.

3. A medical intelligent gas leak detection system according to claim 1, characterized in that: The positioning module includes an alarm indicator light and a Bluetooth locator. The Bluetooth locator is electrically connected to the PLC controller and is used to upload location information to the PLC controller.

4. A medical intelligent gas leak detection system according to claim 3, characterized in that: The alarm indicator light is an audible and visual alarm, which includes a buzzer and a flashing light.

5. The medical intelligent gas leak detection system according to claim 1, characterized in that: The serial port uses the RS485 communication protocol to realize the interactive communication between the PLC controller and the gas detection module, and the wireless transmitter and the wireless receiver use the WIFI communication protocol.

6. The medical intelligent gas leak detection system according to claim 1, characterized in that: The PLC controller is electrically connected to a GSM module, and the GSM module is used to send an alarm text message to a user.

7. The medical intelligent gas leak detection system according to claim 1, characterized in that: The PLC controller is connected to the server via Ethernet, and the server is electrically connected to the display.

8. The medical intelligent gas leak detection system according to claim 1, characterized in that: One end of the PLC controller and the input end of the positioning module are both connected to a power supply, and the power supply adopts a UPS power supply.

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