Toxic gas detection alarm system and method

Abstract

The invention discloses a toxic gas detection alarm system and method. The system comprises an intelligent control module, a distributed sensor module, an intelligent sampling module, an intelligent wind path circulation module, an alarm equipment module and a terminal display module. The system further comprises a power supply unit module and a maintenance module. The intelligent control module is connected with the distributed sensor module, the intelligent sampling module, the intelligent wind path circulation module, the alarm equipment module, the terminal display module and the maintenance module. The power supply unit module is connected with the intelligent control module, the distributed sensor module, the intelligent sampling module, the intelligent wind path circulation module, the alarm equipment module, the maintenance module and the terminal display module. Through cooperative work of gas circulation and the mechanical arm, it is guaranteed that the sensor is in a good working state all the time, interference factors and detection errors are reduced, automatic response and timely handling of emergency situations are achieved, and risks caused by indoor harmful gas are effectively prevented.

Description

Technical Field

[0001] The invention belongs to the technical field of gas detection equipment, and in particular, relates to a poisonous gas detection alarm system and method. Background Art

[0002] Among personal home security facilities, the prevention of toxic gases is particularly critical. Every year, many safety incidents are caused by the failure to detect harmful gases in the room in time. In order to improve this situation, many families have begun to install toxic gas alarm devices in order to remind the owner before the danger occurs. However, the existing alarm system has not yet achieved precise control of the alarm threshold, and cannot distinguish when to only remind the owner, when to automatically start smart sprinkler heads, smart curtains and other equipment to eliminate safety hazards, and when to send an alarm to the fire department to avoid unnecessary waste of resources.

[0003] Especially in winter, in order to keep the room warm, many families will close the doors and windows, which may lead to an increase in the concentration of harmful gases such as formaldehyde and carbon monoxide in the room. The maximum concentration of carbon monoxide that a healthy adult can withstand within eight hours is 50ppm, but when the concentration reaches 200ppm, the human body may experience mild headache and fatigue after 2-3 hours; at 400ppm, it may cause forehead pain within 1-2 hours and may be life-threatening after 3 hours; at 800ppm, it may cause dizziness, nausea, and convulsions within 45 minutes, may lose consciousness within 2 hours, and may die within 2-3 hours; at 1600ppm, it may cause headache, dizziness, and nausea within 20 minutes, and may die within 1 hour; at 3200ppm, it may cause headache, dizziness, and nausea within 5-10 minutes, and may die within 25-30 minutes; at 6400ppm, it may cause headache, dizziness, and nausea within 1-2 minutes, and may die within 10-15 minutes; at 12800ppm, it may die within 1-3 minutes.

[0004] Similarly, the safety threshold of indoor formaldehyde content is also crucial. When the formaldehyde content reaches 0.06-0.08mg / m3, children may experience mild asthma; when the formaldehyde exceeds the standard by 2 times to 0.2mg / m3, it may produce odor and discomfort; when the formaldehyde exceeds the standard by 3 times to 0.3mg / m3, it may irritate the eyes and cause tears; when the formaldehyde exceeds the standard by 4 times to 0.4mg / m3, it may cause throat discomfort or pain; when the formaldehyde exceeds the standard by 5 times to 0.5mg / m3, it may cause nausea and vomiting, coughing, chest tightness, asthma and even pulmonary edema; when the concentration reaches 30mg / m3, it may immediately cause shock and death.

[0005] Therefore, it is very important to install a system that can promptly alarm for toxic and harmful gases in the home, which can not only improve the safety of family life, but also protect the health of family members. With the advancement of technology, the future home security system will be more intelligent, able to more accurately control the alarm threshold, realize automatic response and timely handling of emergencies, so as to effectively prevent the risks brought by harmful gases in the home. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a toxic gas detection alarm system and method, which aims to ensure that the sensor is always in good working condition, reduce interference factors and detection errors, more accurately control the alarm threshold, and achieve automatic response and timely handling of emergency situations.

[0007] A first aspect of an embodiment of the present invention provides a toxic gas detection alarm system, comprising an intelligent control module, a distributed sensor module, an intelligent sampling module, an intelligent air circulation module, an alarm device module, and a terminal display module; It is characterized by further comprising a power supply unit module and a maintenance module; The intelligent control module is respectively connected to the distributed sensor module, the intelligent sampling module, the intelligent air circulation module, the alarm device module, the terminal display module and the maintenance module, and the power supply unit module is respectively connected to the intelligent control module, the distributed sensor module, the intelligent sampling module, the intelligent air circulation module, the alarm device module, the maintenance module and the terminal display module; The intelligent sampling module includes a mechanical arm, which includes a base, a first joint, a second joint, a third joint, a telescopic arm and an end effector; wherein the base is connected to the first joint, the first joint is connected to the second joint, the second joint is connected to the third joint, the third joint is connected to the telescopic arm, and the telescopic arm is connected to the end effector; The intelligent air circulation module includes a small fan and a ventilation duct network.

[0008] In an optional embodiment, a rubber shock-absorbing pad is installed at the bottom of the base of the robotic arm, and a rotating motor is equipped on the base, and the rotating motor is connected to the first joint of the robotic arm through a planetary gear reducer to achieve 360° continuous rotation; A torque sensor is installed at each joint connection of the robotic arm. The torque sensor monitors the torque of each joint in real time. When the torque exceeds a preset threshold, the joint movement is stopped immediately to prevent the robotic arm from being damaged due to collision or overload. The telescopic arm of the mechanical arm adopts an electric push rod to achieve the telescopic function.

[0009] In an optional embodiment, the end effector of the robot arm further comprises a multifunctional tool tray, wherein the multifunctional tool tray is provided with a standard gas source interface, a calibration probe, a cleaning brush and a vacuum cleaner head; The standard gas source interface is connected to a small high-pressure gas cylinder installed near the robotic arm through a pipeline, and a solenoid valve and a flow regulating valve are provided on the pipeline to control the output flow and pressure of the standard gas; The calibration probe uses a high-precision sensor detection element, which can be in close contact with the sensor to achieve standard gas calibration operation; The cleaning brush is mounted on a rotatable motor shaft and driven by the motor to rotate at high speed to remove dust and dirt on the sensor surface; The vacuum cleaner head adopts a small centrifugal fan design, which is connected to the multifunctional tool tray through a flexible vacuum tube to suck dust and debris generated during the cleaning process into a dust bag.

[0010] In an optional embodiment, the distributed sensor module includes a toxic gas detector and an environmental detection sensor, the distributed sensor module is used to collect environmental parameter information, and each sensor communicates with the intelligent control module in real time; The toxic gas detector adopts TGS resistive semiconductor sensor to collect CO concentration information, H 2 S concentration information, NH 3 concentration information, methane concentration information and formaldehyde concentration information; the environmental detection sensor is used to collect temperature information, humidity information and smoke information.

[0011] In an optional embodiment, the terminal display module uses a visual interface with a touch screen, and the visual interface with a touch screen displays specific environmental parameter information and supports users to select corresponding alarm levels and alarm thresholds according to home environment and gas type.

[0012] In an optional implementation, if the environmental parameter information is greater than or equal to the upper limit of the first warning threshold, the intelligent warning unit is responsible for sending a warning message to the householder to remind the householder to pay attention to and check the relevant area; If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the smart home unit controls the smart sprinkler, smart air conditioner and smart curtain to eliminate preliminary safety hazards; If the environmental parameter information is greater than or equal to the upper limit of the third warning threshold, the communication alarm unit automatically alerts the fire department and provides specific safety hazard information.

[0013] In an optional implementation, the user selects a maintenance item through the terminal display module, and the maintenance module automatically calculates the next maintenance date based on the maintenance item, and pushes a maintenance reminder to the intelligent control module before the maintenance is due; The intelligent control module sends cleaning instructions to the intelligent sampling module to control the robotic arm to perform standard gas calibration and cleaning tasks. During the execution of the task, the robotic arm feeds back the standard gas calibration and cleaning results to the maintenance module. The maintenance module records this information and generates a maintenance report for the user to view the system's operating status and maintenance history on the terminal display module.

[0014] A second aspect of an embodiment of the present invention provides a toxic gas detection and alarm method, comprising: S1. The householder creates home environment and gas type entries through the terminal display module, and selects the corresponding alarm level and alarm threshold; S2. The intelligent control module controls the intelligent sampling module and the intelligent air circulation module to perform initialization self-test operations: S201. The intelligent control module sends instructions to the intelligent sampling module to control the robotic arm to move to each sensor position in sequence; S202. When approaching each sensor, the robotic arm automatically adjusts its posture and position to ensure that the calibration probe can accurately contact the sensor; S203. During the standard gas calibration process, the robotic arm carries a standard gas source and a calibration probe to perform electrical parameter detection and standard gas calibration operations; S204. The intelligent control module sends a command to the intelligent air circulation module to control the small fan to start at a low speed and check the patency and sealing of the ventilation duct network; S3. The distributed sensor module collects environmental parameter information and feeds it back to the intelligent control module; S301. The intelligent control module analyzes the environmental parameter information and sends instructions to the intelligent air circulation module; S302. The intelligent air circulation module adjusts the speed and direction of the small fan to guide the gas through the ventilation duct network to the sensor area with high detection accuracy; S303. The intelligent control module sends instructions to the intelligent sampling module to control the robot arm to move to the relevant sensor position, and perform electrical parameter detection and standard gas calibration operations again; S4. When the environmental parameter information is greater than or equal to the upper limit of the alarm threshold, the intelligent control module triggers the alarm device module according to the set alarm level: S401. If the environmental parameter information is greater than or equal to the upper limit of the first warning threshold, the intelligent warning unit is responsible for sending a warning message to the householder to remind the householder to pay attention and check the relevant area; S402. If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the smart home unit controls the smart sprinkler, smart air conditioner and smart curtain to eliminate the initial safety hazard; S403. If the environmental parameter information is greater than or equal to the upper limit of the third warning threshold, the communication alarm unit automatically alerts the fire department and provides specific safety hazard information.

[0015] A third aspect of the embodiments of the present application provides a toxic gas detection and alarm device, the device comprising: Intelligent control module: used to receive and process environmental parameter information from distributed sensor modules, quickly analyze and judge environmental parameter information according to preset algorithms and alarm levels and alarm thresholds set by users, and control the operation of intelligent sampling modules, intelligent air circulation modules, alarm equipment modules and maintenance modules; Distributed sensor module: used to collect environmental parameter information, including toxic gas detectors to collect real-time CO concentration information, H 2 S concentration information, NH 3 Concentration information, methane concentration information, formaldehyde concentration information, environmental detection sensor temperature information, humidity information and smoke information, and real-time communication with the intelligent control module; Intelligent sampling module: used for electrical parameter detection and standard gas calibration operations, keeping the environment around the sensor clean, and feeding back the standard gas calibration and cleaning results to the intelligent control module; Intelligent air circulation module: used to quickly adjust the fan speed and direction according to the instructions of the intelligent control module, and check the patency and sealing of the ventilation duct network; Alarm device module: When the environmental parameter information exceeds the preset threshold, it is responsible for issuing early warning information, controlling smart home devices to eliminate safety hazards or automatically reporting to the fire department; Terminal display module: used to display specific environmental parameter information and support users to set corresponding alarm levels and alarm thresholds according to home environment and gas type; Power supply unit module: used to ensure that the battery pack can take over the power supply task when the mains power is interrupted, ensuring the continuous operation of the system; Maintenance module: used to automatically calculate the next maintenance date based on maintenance items. Before the maintenance is due, maintenance reminders are pushed to the intelligent control module, and standard gas calibration and cleaning results are recorded to generate maintenance reports for users to view the system's operating status and maintenance history on the terminal display module.

[0016] A fourth aspect of the embodiments of the present application provides an electronic device, including a processor, a communication interface, a memory, and a communication bus, wherein the processor, the communication interface, and the memory communicate with each other via the communication bus; Memory, used to store computer programs; The processor is used to implement the steps of a toxic gas detection alarm system and method when executing the program stored in the memory.

[0017] A fifth aspect of an embodiment of the present application provides a computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, a toxic gas detection alarm system and method are implemented.

[0018] Compared with the prior art, the advantages of the above method provided by the present invention include: the present invention adopts distributed sensor integration to comprehensively process the data of various sensors such as temperature and humidity, smoke and toxic gas, so as to provide more comprehensive environmental monitoring and alarm information, and according to different environmental conditions (such as high temperature and high humidity environment, smoke environment, etc.), the alarm threshold can be automatically adjusted or a specific alarm strategy can be triggered to improve the sensitivity and reliability of the alarm system, and by setting a multi-level warning threshold, a graded response to different degrees of toxic gas leakage is achieved. In order to ensure the long-term stable operation of the system, the system is regularly maintained to ensure its normal operation. This measure can extend the service life of the system and further improve its reliability and accuracy.

[0019] The robot arm of this system can automatically perform comprehensive and rapid self-test and calibration operations on each sensor according to the instructions of the intelligent control module, and regularly carry standard gas sources and calibration probes to accurately calibrate the sensors to ensure that the sensors are always in the best working state, extend the service life of the sensors, and reduce the detection errors caused by the degradation of sensor performance. At the same time, the cleaning function of the robot arm can promptly remove dust, oil and other pollutants on the surface of the sensor, maintain the sensitivity of the sensor, and further improve the detection accuracy of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of a poisonous gas detection and alarm system proposed in one embodiment of the present application; Figure 2 A schematic diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] Embodiment 1: Please refer to Figure 1 , Figure 1 Schematic diagram of the structure of a poisonous gas detection alarm system proposed in Example 1 of the present application. Figure 1 As shown, the toxic gas detection alarm system includes an intelligent control module, a distributed sensor module, an intelligent sampling module, an intelligent air circulation module, an alarm device module, and a terminal display module; It is characterized by further comprising a power supply unit module and a maintenance module; The intelligent control module is respectively connected to the distributed sensor module, the intelligent sampling module, the intelligent air circulation module, the alarm device module, the terminal display module and the maintenance module, and the power supply unit module is respectively connected to the intelligent control module, the distributed sensor module, the intelligent sampling module, the intelligent air circulation module, the alarm device module, the maintenance module and the terminal display module; The intelligent sampling module includes a mechanical arm, which includes a base, a first joint, a second joint, a third joint, a telescopic arm and an end effector; wherein the base is connected to the first joint, the first joint is connected to the second joint, the second joint is connected to the third joint, the third joint is connected to the telescopic arm, and the telescopic arm is connected to the end effector; The intelligent air circulation module includes a small fan and a ventilation duct network.

[0024] In this embodiment, the toxic gas detection alarm system builds a comprehensive and intelligent safety protection network. The intelligent control module is closely connected with the distributed sensor module, and continuously receives environmental parameter information from each sensor. These sensors are widely distributed in every corner of the home, such as the kitchen, bedroom, living room, bathroom, etc., forming a comprehensive monitoring network. The intelligent control module quickly analyzes and processes these data, and determines whether the environment is safe based on the preset algorithm and threshold. The connection of the intelligent sampling module ensures that the mechanical arm can accurately perform maintenance and calibration tasks. When abnormal data or possible problems with sensor performance are detected, the intelligent control module immediately sends instructions to the mechanical arm to quickly move it to the specified sensor position for operation. The communication with the intelligent air circulation module enables the intelligent control module to dynamically adjust the fan speed and direction according to the gas diffusion situation, and optimize the gas sampling and detection effect. The connection with the alarm device module ensures that the corresponding alarm action can be triggered in time when danger occurs, and an alarm is issued to the user or relevant department. The interaction with the terminal display module realizes the visual presentation of information, allowing users to understand the environmental conditions and system status at any time.

[0025] Furthermore, a rubber shock-absorbing pad is installed at the bottom of the base of the mechanical arm, and a rotating motor is equipped on the base. The rotating motor is connected to the first joint of the mechanical arm through a planetary gear reducer to achieve 360° continuous rotation; A torque sensor is installed at each joint connection of the robotic arm. The torque sensor monitors the torque of each joint in real time. When the torque exceeds a preset threshold, the joint movement is stopped immediately to prevent the robotic arm from being damaged due to collision or overload. The telescopic arm of the mechanical arm adopts an electric push rod to achieve the telescopic function.

[0026] In this embodiment, the robotic arm is installed near the system control cabinet or on the ceiling track, and can move to various sensor positions in the indoor space under the command of the intelligent control module.

[0027] The end of the robotic arm is equipped with a variety of tools, such as a standard gas source interface for regular calibration of toxic gas detectors to ensure the accuracy of detection data; a cleaning brush head and a small dust suction device are used to clean dust and dirt on the surface of the sensor to prevent it from affecting the detection performance; the detection probe can perform real-time detection of the sensor's electrical performance and response characteristics, promptly discover potential sensor failures, and achieve proactive maintenance, which corresponds to the regular maintenance and calibration mechanism of equipment in the operating room system.

[0028] When the motor of the robot arm is running or the joint movement generates vibration, the rubber shock-absorbing pad can reduce the transmission of vibration to the installation plane (such as ceiling, wall, etc.), avoid the position deviation of the robot arm caused by vibration, and thus ensure the high-precision positioning of the robot arm when performing tasks. The rotary motor generally adopts a high-performance DC motor or AC variable frequency motor. This type of motor has a high speed and torque output capacity, which can meet the needs of rapid position adjustment of the robot arm. The electric push rod is composed of motor, lead screw and nut. The motor drives the lead screw to rotate, so that the nut drives the telescopic arm to achieve telescopic movement. In terms of control, the precise extension and shortening of the telescopic arm can be achieved by accurately controlling the speed and rotation direction of the motor. Its telescopic stroke and positioning accuracy can meet the needs of different sensor positions.

[0029] Furthermore, the end effector of the robot arm also includes a multifunctional tool tray, which is equipped with a standard gas source interface, a calibration probe, a cleaning brush and a vacuum cleaner head; The standard gas source interface is connected to a small high-pressure gas cylinder installed near the robotic arm through a pipeline, and a solenoid valve and a flow regulating valve are provided on the pipeline to control the output flow and pressure of the standard gas; The calibration probe uses a high-precision sensor detection element, which can be in close contact with the sensor to achieve standard gas calibration operation; The cleaning brush is mounted on a rotatable motor shaft and driven by the motor to rotate at high speed to remove dust and dirt on the sensor surface; The vacuum cleaner head adopts a small centrifugal fan design, which is connected to the multifunctional tool tray through a flexible vacuum tube to suck dust and debris generated during the cleaning process into a dust bag.

[0030] In this embodiment, the small high-pressure gas cylinder connected to the standard gas source interface stores various standard gases with known concentrations and accurate calibration. These gases cover the types of toxic gases monitored by the system, such as carbon monoxide, formaldehyde, etc. It is connected to the interface through a pipeline, and the solenoid valve and flow control valve on the pipeline work together to achieve accurate control of the output of the standard gas. The solenoid valve is like an intelligent switch, which can quickly open or close the gas passage according to the system instruction to ensure that the gas is released only when calibration is required to avoid unnecessary gas leakage and waste. The flow control valve is responsible for fine-tuning the flow of the gas, and its accuracy can reach milliliters per minute or even higher. It can accurately provide standard gas with appropriate flow and pressure according to the calibration requirements of different sensors. During the calibration process, the calibration probe fits tightly with the sensor to ensure that the gas can fully act on the sensitive parts of the sensor while minimizing the interference of external factors. Its close contact method may adopt a special elastic connection structure or a magnetic connection to ensure that a stable and reliable connection can be achieved under different installation positions and environmental conditions.

[0031] Furthermore, the distributed sensor module includes a toxic gas detector and an environmental detection sensor, the distributed sensor module is used to collect environmental parameter information, and each sensor communicates with the intelligent control module in real time; The toxic gas detector adopts TGS resistive semiconductor sensor to collect CO concentration information, H 2 S concentration information, NH 3 concentration information, methane concentration information and formaldehyde concentration information; the environmental detection sensor is used to collect temperature information, humidity information and smoke information.

[0032] In this embodiment, the module integrates two types of equipment: toxic gas detectors and environmental detection sensors. Distributed sensors achieve comprehensive monitoring. The system supports the deployment of multiple gas sensors to form a sensor network covering the entire monitoring area. Each sensor communicates with the central controller in real time to ensure timely transmission and processing of data. The toxic gas detector uses a highly sensitive TGS resistive semiconductor sensor. By adding a heating resistor to improve the monitoring capability, it can accurately collect CO and H in the air. 2 S. NH 3 , methane, formaldehyde and other toxic gas concentration information. In order to further improve the monitoring capability, the toxic gas detector has also added a heating resistor, which not only enhances the response speed of the sensor, but also improves its sensitivity to toxic gases such as metal oxides in the air, so that the system can more accurately capture potential safety hazards. Environmental detection sensors collect key environmental parameters such as temperature, humidity and smoke in real time. Collecting humidity information can help the system understand the current environmental status more accurately, thereby improving the accuracy of toxic gas detection. The collection of smoke information can also be used as one of the triggering conditions for the system alarm. When smoke is generated, even if no toxic gas is detected, the system can alarm or enter a pre-alarm state to improve safety, thereby effectively avoiding or reducing potential safety risks.

[0033] Furthermore, the terminal display module adopts a visual interface with a touch screen, and the visual interface with a touch screen displays specific environmental parameter information and supports users to select corresponding alarm levels and alarm thresholds according to home environment and gas type.

[0034] In this embodiment, a terminal display module with a visual interface with a touch screen is designed to enhance the user experience and the interactivity of the system. The visual interface with a touch screen can display the gas concentration information in the home environment in real time, including key parameters such as toxic gases, temperature and humidity, and smoke. Through intuitive charts and data display, users can understand the current environment at a glance, so as to take necessary measures in time. The interface also supports users to flexibly set the corresponding alarm threshold according to their own home environment and the type of gas that may exist. Users can enter and save these personalized alarm settings through simple touch operations. In addition to displaying environmental parameters and setting alarm thresholds, the visual interface with a touch screen also provides a wealth of system information and status display functions. Users can easily view key information such as the system's operating status, alarm records, and historical data, so as to fully understand the performance and performance of the system. The interface also supports users to perform system calibration and maintenance operations. Users can accurately calibrate and debug the system by touching the relevant options on the screen to ensure its long-term stable operation. At the same time, users can also easily view the system's maintenance records and maintenance reminders, so as to clean and maintain the system equipment in time.

[0035] Furthermore, if the environmental parameter information is greater than or equal to the upper limit of the first warning threshold, the intelligent warning unit is responsible for sending warning information to the householder to remind the householder to pay attention to and check the relevant area; If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the smart home unit controls the smart sprinkler, smart air conditioner and smart curtain to eliminate preliminary safety hazards; If the environmental parameter information is greater than or equal to the upper limit of the third warning threshold, the communication alarm unit automatically alerts the fire department and provides specific safety hazard information.

[0036] In this embodiment, if the environmental parameter information obtained is greater than or equal to the upper limit of the first warning threshold, the control unit will control the intelligent warning unit to send a warning message to the householder. This warning message can be in various forms such as text, sound or image, and the purpose is to remind the householder to pay attention and check the relevant area in time. If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the intelligent sprinkler head can spray water mist to reduce the indoor temperature and increase the humidity, dilute the toxic gas and thus reduce the activity and toxicity of certain harmful gases, automatically find the fire point for directional water spraying when a fire occurs, and automatically rotate the sprinkler head to spray water around to extinguish the fire through hydraulic power. The intelligent air conditioner can adjust the indoor air circulation, which helps to reduce the concentration of harmful gases. When the concentration of harmful gases in the room increases, the control system controls the intelligent curtains to adjust the opening and closing degree of the curtains, or close the curtains to reduce gas leakage, while reducing the inflow of fresh air to prevent the spread of harmful gases. The system takes different warning and emergency measures according to the different levels of environmental parameter information, including sending warning information to the householder, controlling the intelligent home equipment to eliminate preliminary safety hazards, and automatically reporting to the fire department in an emergency, thereby improving the safety and reliability of the system.

[0037] Furthermore, the user selects the maintenance item through the terminal display module, and the maintenance module automatically calculates the next maintenance date according to the maintenance item, and pushes the maintenance reminder to the intelligent control module before the maintenance is due; The intelligent control module sends cleaning instructions to the intelligent sampling module to control the robotic arm to perform standard gas calibration and cleaning tasks. During the execution of the task, the robotic arm feeds back the standard gas calibration and cleaning results to the maintenance module. The maintenance module records this information and generates a maintenance report for the user to view the system's operating status and maintenance history on the terminal display module.

[0038] In this embodiment, the maintenance module has a built-in timer and a sensor performance evaluation algorithm. The timer triggers the robot arm to perform routine calibration and cleaning tasks at preset time intervals (such as weekly or monthly). The sensor performance evaluation algorithm analyzes the quality of the data collected by the sensor in real time, such as the stability and degree of deviation of the data. Once the sensor performance is found to be degraded, the intelligent control module is immediately notified to start the robot arm for emergency calibration and maintenance operations.

[0039] When the robot arm is performing its tasks, it feeds back the calibration and cleaning results to the maintenance module, which records this information and generates a maintenance report for users to view the system's operating status and maintenance history.

[0040] Embodiment 2: A flow chart of a toxic gas detection and alarm method proposed in Embodiment 2 of the present application, a toxic gas detection and alarm method, comprising: S1. The householder creates home environment and gas type entries through the terminal display module, and selects the corresponding alarm level and alarm threshold; S2. The intelligent control module controls the intelligent sampling module and the intelligent air circulation module to perform initialization self-test operations: S201. The intelligent control module sends instructions to the intelligent sampling module to control the robotic arm to move to each sensor position in sequence; S202. When approaching each sensor, the robotic arm automatically adjusts its posture and position to ensure that the calibration probe can accurately contact the sensor; S203. During the standard gas calibration process, the robotic arm carries a standard gas source and a calibration probe to perform electrical parameter detection and standard gas calibration operations; S204. The intelligent control module sends a command to the intelligent air circulation module to control the small fan to start at a low speed and check the patency and sealing of the ventilation duct network; S3. The distributed sensor module collects environmental parameter information and feeds it back to the intelligent control module; S301. The intelligent control module analyzes the environmental parameter information and sends instructions to the intelligent air circulation module; S302. The intelligent air circulation module adjusts the speed and direction of the small fan to guide the gas through the ventilation duct network to the sensor area with high detection accuracy; S303. The intelligent control module sends instructions to the intelligent sampling module to control the robot arm to move to the relevant sensor position, and perform electrical parameter detection and standard gas calibration operations again; S4. When the environmental parameter information is greater than or equal to the upper limit of the alarm threshold, the intelligent control module triggers the alarm device module according to the set alarm level: S401. If the environmental parameter information is greater than or equal to the upper limit of the first warning threshold, the intelligent warning unit is responsible for sending a warning message to the householder to remind the householder to pay attention and check the relevant area; S402. If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the smart home unit controls the smart sprinkler, smart air conditioner and smart curtain to eliminate the initial safety hazard; S403. If the environmental parameter information is greater than or equal to the upper limit of the third warning threshold, the communication alarm unit automatically alerts the fire department and provides specific safety hazard information.

[0041] In this embodiment, the intelligent control module first controls the dynamic calibration and maintenance robot to perform comprehensive self-test and calibration operations on all sensors. The robot carries the detection probe and the standard gas source and moves to each sensor position in turn to detect whether the electrical parameters and response curve of the sensor are normal, and compares and calibrates with the standard gas data. At the same time, the fan in the gas circulation and pretreatment module starts at a low speed to check the patency and sealing of the ventilation duct to ensure that the entire system is in a normal working preparation state. This process is similar to the detection and preparation of each component when the operating room system is turned on.

[0042] The distributed sensor module continuously collects gas data, and once it detects an abnormal increase in the concentration of toxic gas or a change in environmental parameters, it immediately transmits the data to the intelligent control module. The intelligent control module determines the distribution and concentration gradient of the gas based on the data. On the one hand, it controls the fan speed and direction in the gas circulation and pretreatment module, accelerates the air circulation in the contaminated area, and guides the gas flow to the sensor centralized detection area; on the other hand, it starts the dynamic calibration and maintenance robot arm to quickly review and calibrate the relevant sensors to ensure the reliability of the detection data, which is similar to the operating room system adjusting the bellows and air conditioning working mode based on temperature and humidity feedback.

[0043] When the gas concentration exceeds the preset threshold, the intelligent control module triggers the alarm device module according to the set alarm level. The intelligent early warning unit sends warning information to the householder through various means (such as sound and light alarm, mobile phone push notification, smart speaker voice broadcast, etc.), and displays the gas concentration, location and possible hazards in detail on the terminal display module.

[0044] The present disclosure provides a poisonous gas detection and alarm device, the device comprising: Intelligent control module: used to receive and process environmental parameter information from distributed sensor modules, quickly analyze and judge environmental parameter information according to preset algorithms and alarm levels and alarm thresholds set by users, and control the operation of intelligent sampling modules, intelligent air circulation modules, alarm equipment modules and maintenance modules; Distributed sensor module: used to collect environmental parameter information, including toxic gas detectors to collect real-time CO concentration information, H 2 S concentration information, NH 3 Concentration information, methane concentration information, formaldehyde concentration information, environmental detection sensor temperature information, humidity information and smoke information, and real-time communication with the intelligent control module; Intelligent sampling module: used for electrical parameter detection and standard gas calibration operations, keeping the environment around the sensor clean, and feeding back the standard gas calibration and cleaning results to the intelligent control module; Intelligent air circulation module: used to quickly adjust the fan speed and direction according to the instructions of the intelligent control module, and check the patency and sealing of the ventilation duct network; Alarm device module: When the environmental parameter information exceeds the preset threshold, it is responsible for issuing early warning information, controlling smart home devices to eliminate safety hazards or automatically reporting to the fire department; Terminal display module: used to display specific environmental parameter information and support users to set corresponding alarm levels and alarm thresholds according to home environment and gas type; Power supply unit module: used to ensure that the battery pack can take over the power supply task when the mains power is interrupted, ensuring the continuous operation of the system; Maintenance module: used to automatically calculate the next maintenance date based on maintenance items. Before the maintenance is due, maintenance reminders are pushed to the intelligent control module, and standard gas calibration and cleaning results are recorded to generate maintenance reports for users to view the system's operating status and maintenance history on the terminal display module.

[0045] The present disclosure also provides an electronic device. Figure 2 , Figure 2 Schematic diagram of an electronic device according to an embodiment of the present disclosure. Figure 2 As shown, the electronic device 100 includes: a memory 110 and a processor 120. The memory 110 and the processor 120 are connected via a bus communication. A computer program is stored in the memory 110. The computer program can be run on the processor 120 to implement the steps in a toxic gas detection alarm system and method disclosed in an embodiment of the present disclosure.

[0046] The disclosed embodiment also provides a computer-readable storage medium. When the instructions in the computer-readable storage medium are executed by a processor of a computer device, the computer device can execute the steps in a toxic gas detection alarm system and method as described in the disclosed embodiment.

[0047] The embodiments of the present application are described with reference to the flowcharts and / or block diagrams of the methods, devices, electronic devices, and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0048] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0049] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0050] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0051] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0052] Although the preferred embodiments of the present application have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present application.

[0053] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or terminal device including the elements.

[0054] The above is a detailed introduction to a toxic gas detection alarm system and method provided by the present application. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A toxic gas detection and alarm system, comprising an intelligent control module, a distributed sensor module, an intelligent sampling module, an intelligent air circulation module, an alarm device module, and a terminal display module; It is characterized in that It also includes a power supply unit module and a maintenance module; The intelligent control module is respectively connected to the distributed sensor module, the intelligent sampling module, the intelligent air circulation module, the alarm device module, the terminal display module and the maintenance module, and the power supply unit module is respectively connected to the intelligent control module, the distributed sensor module, the intelligent sampling module, the intelligent air circulation module, the alarm device module, the maintenance module and the terminal display module; The intelligent sampling module includes a mechanical arm, which includes a base, a first joint, a second joint, a third joint, a telescopic arm and an end effector; wherein the base is connected to the first joint, the first joint is connected to the second joint, the second joint is connected to the third joint, the third joint is connected to the telescopic arm, and the telescopic arm is connected to the end effector; The intelligent air circulation module includes a small fan and a ventilation duct network.

2. A toxic gas detection alarm system according to claim 1, characterized in that: A rubber shock-absorbing pad is installed at the bottom of the base of the robotic arm, and a rotating motor is equipped on the base. The rotating motor is connected to the first joint of the robotic arm through a planetary gear reducer to achieve 360° continuous rotation; A torque sensor is installed at each joint connection of the robotic arm. The torque sensor monitors the torque of each joint in real time. When the torque exceeds a preset threshold, the joint movement is stopped immediately to prevent the robotic arm from being damaged due to collision or overload. The telescopic arm of the mechanical arm adopts an electric push rod to achieve the telescopic function.

3. A toxic gas detection alarm system according to claim 2, characterized in that: The end effector of the robot arm also includes a multifunctional tool tray, which is equipped with a standard gas source interface, a calibration probe, a cleaning brush and a vacuum cleaner head; The standard gas source interface is connected to a small high-pressure gas cylinder installed near the robotic arm through a pipeline, and a solenoid valve and a flow regulating valve are provided on the pipeline to control the output flow and pressure of the standard gas; The calibration probe uses a high-precision sensor detection element, which can be in close contact with the sensor to achieve standard gas calibration operation; The cleaning brush is mounted on a rotatable motor shaft and driven by the motor to rotate at high speed to remove dust and dirt on the sensor surface; The vacuum cleaner head adopts a small centrifugal fan design, which is connected to the multifunctional tool tray through a flexible vacuum tube to suck dust and debris generated during the cleaning process into a dust bag.

4. A toxic gas detection alarm system according to claim 1, characterized in that: The distributed sensor module includes a toxic gas detector and an environmental detection sensor, the distributed sensor module is used to collect environmental parameter information, and each sensor communicates with the intelligent control module in real time; The toxic gas detector adopts a TGS resistive semiconductor sensor for collecting CO concentration information, H2S concentration information, NH3 concentration information, methane concentration information and formaldehyde concentration information; the environmental detection sensor is used to collect temperature information, humidity information and smoke information.

5. A toxic gas detection alarm system according to claim 1, characterized in that: The terminal display module adopts a visual interface with a touch screen, which displays specific environmental parameter information and supports users to select corresponding alarm levels and alarm thresholds according to home environment and gas type.

6. A poisonous gas detection alarm system according to claim 1, characterized in that: If the environmental parameter information is greater than or equal to the upper limit of the first warning threshold, the intelligent warning unit is responsible for sending a warning message to the householder to remind the householder to pay attention and check the relevant area; If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the smart home unit controls the smart sprinkler, smart air conditioner and smart curtain to eliminate preliminary safety hazards; If the environmental parameter information is greater than or equal to the upper limit of the third warning threshold, the communication alarm unit automatically alerts the fire department and provides specific safety hazard information.

7. A poisonous gas detection alarm system according to claim 3, characterized in that: The user enters the maintenance items through the terminal display module, and the maintenance module automatically calculates the next maintenance date based on the maintenance items, and pushes the maintenance reminder to the intelligent control module before the maintenance expires; The intelligent control module sends cleaning instructions to the intelligent sampling module to control the robotic arm to perform standard gas calibration and cleaning tasks. During the execution of the task, the robotic arm feeds back the standard gas calibration and cleaning results to the maintenance module. The maintenance module records this information and generates a maintenance report for the user to view the system's operating status and maintenance history on the terminal display module.

8. A toxic gas detection and alarm method, characterized in that: include: S1. The householder creates home environment and gas type entries through the terminal display module, and selects the corresponding alarm level and alarm threshold; S2. The intelligent control module controls the intelligent sampling module and the intelligent air circulation module to perform initialization self-test operations: S201. The intelligent control module sends instructions to the intelligent sampling module to control the robotic arm to move to each sensor position in sequence; S202. When approaching each sensor, the robotic arm automatically adjusts its posture and position to ensure that the calibration probe can accurately contact the sensor; S203. During the standard gas calibration process, the robotic arm carries a standard gas source and a calibration probe to perform electrical parameter detection and standard gas calibration operations; S204. The intelligent control module sends a command to the intelligent air circulation module to control the small fan to start at a low speed and check the patency and sealing of the ventilation duct network; S3. The distributed sensor module collects environmental parameter information and feeds it back to the intelligent control module; S301. The intelligent control module analyzes the environmental parameter information and sends instructions to the intelligent air circulation module; S302. The intelligent air circulation module adjusts the speed and direction of the small fan to guide the gas through the ventilation duct network to the sensor area with high detection accuracy; S303. The intelligent control module sends instructions to the intelligent sampling module to control the robot arm to move to the relevant sensor position, and perform electrical parameter detection and standard gas calibration operations again; S4. When the environmental parameter information is greater than or equal to the upper limit of the alarm threshold, the intelligent control module triggers the alarm device module according to the set alarm level: S401. If the environmental parameter information is greater than or equal to the upper limit of the first warning threshold, the intelligent warning unit is responsible for sending a warning message to the householder to remind the householder to pay attention and check the relevant area; S402. If the environmental parameter information is greater than or equal to the upper limit of the second warning threshold, the smart home unit controls the smart sprinkler, smart air conditioner and smart curtain to eliminate the initial safety hazard; S403. If the environmental parameter information is greater than or equal to the upper limit of the third warning threshold, the communication alarm unit automatically alerts the fire department and provides specific safety hazard information.

9. A toxic gas detection alarm device, characterized in that: The device comprises: Intelligent control module: used to receive and process environmental parameter information from distributed sensor modules, quickly analyze and judge environmental parameter information according to preset algorithms and alarm levels and alarm thresholds set by users, and control the operation of intelligent sampling modules, intelligent air circulation modules, alarm equipment modules and maintenance modules; Distributed sensor module: used to collect environmental parameter information, including real-time collection of CO concentration information, H2S concentration information, NH3 concentration information, methane concentration information, formaldehyde concentration information by toxic gas detectors, temperature information, humidity information and smoke information by environmental detection sensors, and real-time communication with the intelligent control module; Intelligent sampling module: used for electrical parameter detection and standard gas calibration operations, keeping the environment around the sensor clean, and feeding back the standard gas calibration and cleaning results to the intelligent control module; Intelligent air circulation module: used to quickly adjust the fan speed and direction according to the instructions of the intelligent control module, and check the patency and sealing of the ventilation duct network; Alarm device module: When the environmental parameter information exceeds the preset threshold, it is responsible for issuing early warning information, controlling smart home devices to eliminate safety hazards or automatically reporting to the fire department; Terminal display module: used to display specific environmental parameter information and support users to set corresponding alarm levels and alarm thresholds according to home environment and gas type; Power supply unit module: used to ensure that the battery pack can take over the power supply task when the mains power is interrupted, ensuring the continuous operation of the system; Maintenance module: used to automatically calculate the next maintenance date based on maintenance items. Before the maintenance is due, maintenance reminders are pushed to the intelligent control module, and standard gas calibration and cleaning results are recorded to generate maintenance reports for users to view the system's operating status and maintenance history on the terminal display module.

10. An electronic device, characterized in that: It includes a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other through the communication bus; Memory, used to store computer programs; The processor is used to implement a toxic gas detection alarm system and method as described in any one of claims 1 to 9 when executing a program stored in the memory.

11. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements a toxic gas detection alarm system and method as described in any one of claims 1-9.

Images