Mining breathing self-rescue system capable of intelligently detecting toxic gas

Abstract

The invention provides a mining breathing self-rescue system capable of intelligently detecting toxic gas, which comprises a mining silica gel half mask, a control valve, an air bag, a compressed oxygen bottle, an expiration pipe, an inspiration pipe, a gas sensing array module, a sensing cabin and a single chip microcomputer, one side is an expiration pipeline connected with a compressed oxygen self-rescuer cleaning tank and used for purifying expired gas, the other side is an inspiration pipeline connected with a compressed oxygen self-rescuer air bag, and oxygen adjusted and released by a compressed oxygen bottle adjuster and human body expired gas filtered and purified by the cleaning tank are stored in the air bag. The concentration of toxic gas in the half mask can be monitored, flow conveying of oxygen of the self-rescuer can be controlled, the service life of the self-rescuer can be prolonged, oxygen uptake operation time can be shortened, threat of colorless and odorless gas to miner lives can be reduced, rescue time after disasters occur can be strived, and the self-rescuer has important practical significance for guaranteeing health and safety of miner lives before and after disasters.

Description

Technical Field

[0001] The present application relates to the field of individual protection technology, and in particular to a mining breathing self-rescue system capable of intelligently detecting toxic gases. Background Art

[0002] The coal mine environment is complex and changeable. It often faces various disasters such as fire, gas outburst and explosion, which will not only cause direct physical damage, but also release a large amount of toxic and harmful gases, such as colorless and odorless gases such as carbon monoxide (CO) and methane (CH4). These gases are difficult to be detected by the human body. Once the concentration is too high, it will pose a serious threat to the life and health of miners, especially even leading to poisoning and suffocation. In recent years, the frequent occurrence of coal mine poisoning and suffocation has posed a great threat to the personal safety of mine workers. At the same time, it has also caused huge property losses and adverse social impacts, becoming the most important factor restricting the development of high-yield, efficient and intensive mining technology. If the concentration of toxic gases in the environment where miners are located can be detected in real time in situ, early warning and emergency measures can be taken when the gas concentration is abnormal, and the use time of compressed oxygen self-rescuers can be extended, it will be of great significance to protect the lives of workers and achieve safe production in coal mines.

[0003] Compared with large-scale detection equipment, semiconductor gas sensors have the characteristics of miniaturization, low cost, portability and real-time in-situ detection, and have shown broad application prospects in the fields of atmospheric environment monitoring, industrial / military / civilian safety, medical diagnosis, etc. In some cases, odors are often composed of multiple gases, and a single gas cannot meet the recognition and detection of multiple gases in actual complex environments. Therefore, a gas sensor array suitable for multi-component gas detection has emerged. Compressed oxygen self-rescuers are the most widely used self-rescuers in coal mines. They have the advantages of safety, reliability, comfort, and reusability. However, the existing compressed oxygen self-rescuers have a short service life, and adaptive oxygen delivery is difficult to regulate. In order to gain rescue time after a disaster occurs, the present invention is a mining breathing self-rescue system for intelligent detection of toxic gases. It relies on a mining half mask, arranges a single-chip microcomputer to design a gas sensor array module, monitors the concentration of toxic gases in the half mask, can extend the service life of the self-rescuer, reduce the oxygen inhalation operation time, and reduce the threat of colorless and odorless gases to the lives of miners. It has important practical significance for protecting the life, health and safety of miners before and after disasters. Summary of the invention

[0004] The present application provides a mining breathing self-rescue system for intelligently detecting toxic gases, so as to solve the problems of the existing compressed oxygen self-rescuer that the oxygen flow is difficult to adjust, the usage time is short, and the toxic gases are difficult to detect. It can monitor the concentration of toxic gases in the half mask, control the flow delivery of oxygen in the self-rescuer, extend the usage time of the self-rescuer, and reduce the oxygen inhalation operation time.

[0005] The present application provides a mining breathing self-rescue system for intelligently detecting toxic gases, including a mining silicone half mask, a control valve, a compressed oxygen cylinder, an exhalation tube, and an inhalation tube; two air paths are arranged under the mining half mask, one side is an exhalation tube air path connected to a compressed oxygen self-rescuer purification tank for purifying exhaled gas, and the other side is an inhalation tube air path connected to an air bag of a compressed oxygen self-rescuer, and the air bag stores oxygen released by a regulator of the compressed oxygen cylinder and exhaled gas of the human body after filtration and purification by the purification tank.

[0006] Preferably, it also includes a sensor cabin, which is installed on the sensor cabin base. The sensor cabin is installed inside the mining half mask through the buckle 23 and adopts a hollow design. The airflow in the silicone half mask 4 flows into the interior of the sensor cabin through the hollow structure.

[0007] Preferably, the sensing cabin includes a single-chip microcomputer, a gas sensor array module, a sensor element, an air inlet, a wire and a power supply module. The air inlet is installed at the air inlet end of the sensing cabin. The sensor element of the gas sensor array module adopts one of a micro-electromechanical system substrate, a ceramic substrate, a silicon substrate, a glass substrate or a graphene substrate. A flexible circuit board is used to connect the sensor substrate to the single-chip microcomputer, and one end of the wire is connected to the single-chip microcomputer.

[0008] Preferably, the single-chip microcomputer includes modules including a sensor module, a data acquisition signal processing module, a power management module, a communication module and a control module. The sensor module is connected to the control module through the data acquisition signal processing module, and the power management module and the communication module are respectively connected to the control module. The single-chip microcomputer is responsible for receiving sensor signals, processing data, and executing control logic. The single-chip microcomputer model is one of Arduino, ESP32 or STM32; the power management unit chip type is a power management IC, which is used to provide a stable power supply and manage power distribution and protection; the data acquisition signal processing module amplifies, filters and digitizes the analog signal output by the sensor module, and then the single-chip microcomputer 22 processes the signal and extracts the eigenvalues, and runs the preprocessing and decision logic to perform real-time prediction and decision-making according to the sensor data and the trained model.

[0009] Preferably, a front cover is arranged on the outer side of the mining silicone half mask, an exhalation hole is opened on the front cover, a first control valve is installed on one side of the mining silicone half mask, the first control valve is installed on the first valve housing, a second control valve is installed on the other side of the mining silicone half mask, the second control valve is installed on the second valve housing, a bracket is installed inside the second valve housing, a rotating shaft is installed on the bracket, the second control valve is installed on the breathing tube, and a fan is also arranged on the inside of the first control valve.

[0010] Preferably, the silicone half mask is also connected to an airbag through an inhalation tube and an exhalation tube, the airbag is installed above the self-rescuer shell through a purification tank, a compressed oxygen cylinder is also installed in the self-rescuer shell, and a pressure gauge and a bottle switch are also installed on the compressed oxygen cylinder.

[0011] Preferably, a pressure relief valve and an air pressure replenishing plate are respectively installed inside the airbag.

[0012] Preferably, a method for using a mining breathing self-rescue system for intelligently detecting toxic gases comprises the following steps: A. When using, put the silicone half mask on the user's face; B. The exhalation pipe of the mining half mask is connected to the compressed oxygen self-rescuer purification tank for purifying the exhaled gas. The other side is the inhalation pipe connected to the compressed oxygen self-rescuer airbag. The airbag stores the oxygen released by the regulator of the compressed oxygen cylinder and the exhaled gas of the human body after filtering and purification by the purification tank. C. The sensor element collects the toxic and harmful gas signals in the mine in real time; D. The data acquisition signal processing module amplifies, filters and digitizes the analog signal output by the sensor element; E. Then the single chip microcomputer processes the signal and extracts the feature value, and runs the pre-processing and decision logic; F. Make real-time predictions and decisions based on sensor data and trained models; G. Finally, when the concentration of harmful gases detected exceeds the preset threshold, an early warning is automatically triggered, the control valve is closed, the warning light emits a red warning, and the miner opens the compressed oxygen self-rescuer to adjust the oxygen delivery.

[0013] Beneficial effects: The present invention has novel structural design and high intelligence. It can monitor the concentration of toxic gases in the half mask and control the flow rate of oxygen in the self-rescuer. It can extend the use time of the self-rescuer, reduce the oxygen inhalation operation time, reduce the threat of colorless and odorless gas to the lives of miners, and strive for rescue time after the disaster. It has important practical significance for protecting the life, health and safety of miners before and after the disaster.

[0014] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, a brief introduction will be given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 The overall structural diagram of the mining breathing self-rescue system for intelligently detecting poisonous gases of the present invention; Figure 2 Another schematic diagram of the overall structure of the mining breathing self-rescue system for intelligently detecting toxic gases of the present invention Figure 3 This is a schematic diagram of the structure of the silicone half mask of the present invention; Figure 4 This is a schematic diagram of the structure of the sensor cabin of the present invention; Figure 5 This is a schematic diagram of the enlarged structure of the battery module of the mining breathing self-rescue system for intelligently detecting toxic gases of the present invention; Figure 6 This is a schematic diagram of the valve opening and closing structure of the mining breathing self-rescue system for monitoring and intelligently detecting toxic gases of the present invention; Figure 7 The present invention is a process flow chart of the mining breathing self-rescue system for intelligently detecting poisonous gases.

[0017] Explanation of the accompanying drawings: 1. Front cover, 2. Valve housing, 3. Control valve, 4. Silicone half mask, 5. Exhalation channel, 6. Pressure gauge, 7. Bottle switch, 8. Compressed oxygen cylinder, 9. Self-rescuer housing, 10. Air bag, 11. Air supply pressure plate, 12. Inhalation pipe, 13. Pressure relief valve, 14. Exhalation pipe, 15. Bracket, 16. Control valve, 17. Valve housing, 18. Rotating axis, 19. Sensor cabin base, 20. Gas sensor array module, 21. Sensor element, 22. Single chip microcomputer, 23. Buckle, 24. Air inlet, 25. Wire, 26. Sensor cabin, 27. Battery module, 28. Fan, 29. Purification tank, 30. Warning light. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings 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.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] The directional words appearing in the following description are all directions shown in the drawings, and do not limit the specific structure of the present application. For example, in the description of the present application, the directions or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application.

[0022] In addition, the expressions of indicated directions such as the X direction, the Y direction, and the Z direction used to illustrate the operation and construction of the components of the present embodiment are not absolute but relative, and although these indications are appropriate when the components are in the positions shown in the figures, when these positions change, these directions should be interpreted differently to correspond to the changes.

[0023] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0024] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection; the physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0025] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0026] See also Figure 1-Figure 6 The present application discloses a mining breathing self-rescue system for intelligently detecting toxic gases, including a mining silicone half mask 4, a control valve 16, a compressed oxygen cylinder 8, an exhalation tube 14, and an inhalation tube 12; two gas paths are arranged under the mining half mask 4, one side is the exhalation tube 14 gas path connected to the compressed oxygen self-rescuer purification tank 29 for purifying the exhaled gas, and the other side is the inhalation tube 12 gas path connected to the compressed oxygen self-rescuer airbag 10, and the airbag 10 stores the oxygen released by the regulator of the compressed oxygen cylinder 8 and the exhaled gas of the human body after filtering and purification by the purification tank 29.

[0027] It also includes a sensor cabin 26, which is installed on the sensor cabin base 19. The sensor cabin 26 is installed inside the mining half mask through the buckle 23 and adopts a hollow design. The airflow in the silicone half mask 4 flows into the interior of the sensor cabin through the hollow structure.

[0028] In the present invention, the sensor cabin 26 includes a single-chip microcomputer 22, a gas sensor array module 20, a sensor element 21, an air inlet 24, a wire 25 and a power module 27. The air inlet 24 is installed at the air inlet end of the sensor cabin 26. The sensor element 21 of the gas sensor array module 20 adopts one of a micro-electromechanical system substrate, a ceramic substrate, a silicon substrate, a glass substrate or a graphene substrate. The sensor substrate is connected to the single-chip microcomputer 22 using a flexible circuit board, and one end of the wire 25 is connected to the single-chip microcomputer 22. The gas sensor array module is provided with a temperature and humidity sensor element to calibrate the signal of the sensor element 21, and four types of sensor elements are arranged, including carbon monoxide, oxygen, humidity and temperature, but not limited to methane, hydrogen sulfide, carbon dioxide, sulfur dioxide and nitrogen gases.

[0029] In the present invention, the single-chip microcomputer 22 includes modules including a sensor module, a data acquisition signal processing module, a power management module, a communication module and a control module. The sensor module is connected to the control module through the data acquisition signal processing module, and the power management module and the communication module are respectively connected to the control module. The single-chip microcomputer is responsible for receiving sensor signals, processing data, and executing control logic. The single-chip microcomputer model is one of Arduino, ESP32 or STM32; the power management unit chip type is a power management IC, which is used to provide a stable power supply and manage power distribution and protection; the data acquisition signal processing module amplifies, filters and digitizes the analog signal output by the sensor module, and then the single-chip microcomputer 22 processes the signal and extracts the feature value, and runs the preprocessing and decision logic to perform real-time prediction and decision-making according to the sensor data and the trained model; the communication and control module chip type is a UART, SPI, I2C communication module, or a wireless communication module (such as Wi-Fi, Bluetooth, LoRa) to realize data transmission and remote communication.

[0030] When the sensor module performs decision logic processing, it mainly includes the construction of the toxic gas level evaluation parameter system and the decision model. First, by constructing the toxic gas level evaluation parameter system, quantifying key parameters such as gas concentration, concentration change rate, diffusion flux, and diffusion rate, the gas level is reasonably and accurately evaluated. The parameter evaluation system provides key input data and evaluation criteria for the decision model. The establishment of the decision model, specifically, collects signals within the corresponding time, performs data preprocessing, uses time-weighted average (TWA) or short-term exposure limit (STEL) to calculate the average concentration in a short time window, and extracts the key parameter characteristics of the time series. Then, convolutional neural network (CNN) and long short-term memory network (LSTM) are used as model training to determine the key threshold indicators, thereby controlling the closure of the valve component.

[0031] In the present invention, a front cover 1 is arranged on the outer side of a mining silicone half mask 4, an exhalation channel 5 is provided on the front cover 1, a first control valve 3 is installed on one side of the mining silicone half mask 4, the first control valve 3 is installed on the first valve housing 2, a second control valve 16 is installed on the other side of the mining silicone half mask 4, the second control valve 16 is installed on the second valve housing 17, a bracket 15 is installed inside the second valve housing 17, a rotating shaft 18 is installed on the bracket 15, the second control valve 16 is installed on the breathing tube 14, and a fan 28 is also arranged on the inner side of the first control valve 3; the silicone half mask 4 is also connected to an air bag 10 through an inhalation pipe 12 and an exhalation pipe 14, the air bag 10 is installed above the self-rescuer housing 9 through a purification tank 29, a compressed oxygen cylinder 8 is also installed in the self-rescuer housing 9, a pressure gauge 6 and a bottle switch 7 are also installed on the compressed oxygen cylinder 8; a pressure relief valve 13 and an air replenishment pressure plate 11 are respectively installed on the inner side of the air bag 10. Specific embodiment one: When this embodiment is specifically applied to the limited space of a coal mine, the sensor array is designed with 2 humidity sensors, 2 temperature sensors, 2 CO sensors, and 2 O2 sensors. The temperature and humidity sensors are used to calibrate the deviation adjustment sensors to improve the reliability of their gas detection. Miners can choose to wear isolated compressed oxygen self-rescuers such as ZYX30, ZYX45 or ZYX60.

[0033] During daily work, the self-rescuer is placed at the side of the body. At this time, the user normally wears a silicone half mask, and the control valve is in an open and non-working state. The silicone half mask can also replace other masks of corresponding specifications, such as a full mask. The lower part of the front cover of the mask needs to be modified to design a channel interface for connecting the compressed oxygen self-rescuer, which should be tightened and closed when not in use.

[0034] When the sensor module detects that the CO concentration in the mask is ≥24 ppm, the O2 concentration exceeds the range of 19.5%-23.5%, and the signal is transmitted to the warning light and control valve of the self-rescuer via Bluetooth. After receiving the signal, the warning light displays a red light, the control valve closes automatically, and the miner moves the self-rescuer from the left side of the body to the right front. ‌‌ Open the arch buckle strap, pull the opening wrench to open the buckle strap, and throw away the upper shell. ‌ Connect the silicone half mask, exhalation tube and inhalation tube, and control the one-way gas in and out through a one-way valve. ‌‌ Turn on the oxygen cylinder switch counterclockwise and it must be fully opened. ‌‌ Press the air pressure plate with your finger to make the airbag inflate quickly. ‌‌‌ Confirm the direction of safe evacuation, hold the self-rescuer with both hands, and evacuate the disaster site. ‌ Specific embodiment 2: When this embodiment is applied to a variety of toxic and harmful gas environments, the compressed oxygen self-rescuer is based on the zyx60 isolated compressed oxygen self-rescuer, and the mask equipped with the sensor array module is connected to the compressed oxygen self-rescuer through the exhalation pipe and the inhalation pipe. When using it, the user needs to wear the mask, straddle the self-rescuer on the side of the body, manually turn on the hand wheel switch to the normally open state, and after use, take off the mask, turn off the hand wheel switch, and take off the self-rescuer, and regularly check the compressed oxygen cylinder.

[0036] During use, the gas environment in the mask is detected by the sensors in the sensor array. In mines, common toxic and harmful gases include carbon monoxide, hydrogen sulfide, etc. Two sensors of each type are set, and the temperature and humidity sensors are used to calibrate the deviation adjustment sensor to improve its reliability in detecting gas. When the concentration of toxic and harmful gases in the mask exceeds the preset target range, for example, the maximum allowable concentration of carbon monoxide is 24 ppm, and the maximum allowable concentration of hydrogen sulfide is 6.6 ppm, the toxic and harmful gas signal is transmitted to the data conversion module 22 by the sensor array, and the signal is collected, analyzed and processed by the single-chip signal conversion module 22 and transmitted to the chip. After receiving the processed signal, the chip sends a new signal to the control valve. When the CO concentration is ≥24ppm and the H2S concentration is ≥6.6ppm, the first control valve 3 and the second control valve 16 are closed. At the same time, the miner receives the red command of the warning light 30 signal, pulls the opening wrench to open the buckle, and throws away the upper shell. ‌Connect the exhalation tube 14 and the inhalation tube 12 of the silicone half mask 4 for use. When the CO concentration is less than 24ppm, the control valve receives the signal and opens. At the same time, the signal is transmitted to the warning light 30, which is green, indicating that the atmosphere inside the mask is healthy, and the oxygen supply is manually turned off. The human respiratory system is completely isolated from the external dangerous gas environment, ensuring the life safety of the operators. Specific embodiment three: The sensor array design in this embodiment is intended to provide real-time support for the health monitoring of miners. By integrating multiple dedicated sensors in the mask, the miners' breathing status and health indicators can be continuously tracked. Specifically, the sensor array includes an acetone sensor and an allyl mercaptan sensor.

[0038] The acetone sensor is used to detect the acetone concentration in the miners' breath. Acetone is a characteristic gas produced when the body's metabolism is abnormal in diabetic patients. Its increased concentration may indicate unstable blood sugar levels or the risk of ketoacidosis. By monitoring the acetone concentration, potential diabetes problems in miners can be identified in time, and measures can be taken when necessary to avoid health crises caused by diabetes.

[0039] Allyl mercaptan sensors are used to detect the mental health of miners. Studies have shown that sulfur compounds such as allyl mercaptan may be released during human stress responses, and changes in their concentrations are related to psychological states such as stress and anxiety. By detecting the concentrations of these gases, the sensor array can assess the miners' psychological stress levels and help detect mental health problems in a timely manner, thereby preventing safety hazards caused by overwork or stress.

[0040] By integrating these sensors, this embodiment can provide comprehensive health monitoring for miners without interfering with normal work, and provide a scientific basis for mine safety management and worker health protection. Working principle: A method for using a mining breathing self-rescue system for intelligent detection of toxic gases, comprising the following steps: A. When using, put the silicone half mask on the user's face; B. The exhalation pipe of the mining half mask is connected to the compressed oxygen self-rescuer purification tank for purifying the exhaled gas. The other side is the inhalation pipe connected to the compressed oxygen self-rescuer airbag. The airbag stores the oxygen released by the regulator of the compressed oxygen cylinder and the exhaled gas of the human body after filtering and purification by the purification tank. C. The sensor element collects the toxic and harmful gas signals in the mine in real time; D. The data acquisition signal processing module amplifies, filters and digitizes the analog signal output by the sensor element; E. Then the single chip microcomputer processes the signal and extracts the feature value, and runs the pre-processing and decision logic; F. Make real-time predictions and decisions based on sensor data and trained models; G. Finally, when the concentration of harmful gases detected exceeds the preset threshold, an early warning is automatically triggered, the control valve is closed, and the miners open or close the compressed oxygen self-rescuer according to the instructions of the warning light.

[0041] To sum up, the present invention has novel structural design and high degree of intelligence. It can monitor the concentration of toxic gases in the half mask and control the flow delivery of oxygen in the self-rescuer. It can extend the use time of the self-rescuer, reduce the oxygen inhalation operation time, reduce the threat of colorless and odorless gas to the lives of miners, and strive for rescue time after the disaster. It has important practical significance for protecting the life, health and safety of miners before and after the disaster.

[0042] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A mining breathing self-rescue system for intelligently detecting poisonous gases, characterized in that: The invention comprises a mining silica gel half mask (4), a control valve (16), a compressed oxygen cylinder (8), an exhalation tube (14), and an inhalation tube (12); two gas paths are arranged below the mining half mask (4), one side of which is the exhalation tube (14) connected to a compressed oxygen self-rescuer purification tank (29) for purifying exhaled gas, and the other side of which is the inhalation tube (12) connected to a compressed oxygen self-rescuer airbag (10), wherein the airbag (10) stores oxygen released by a regulator of the compressed oxygen cylinder (8) and exhaled gas of the human body after being filtered and purified by the purification tank (29).

2. The mining breathing self-rescue system for intelligently detecting poisonous gases according to claim 1 is characterized in that: It also includes a sensor cabin (26), the sensor cabin (26) being mounted on a sensor cabin base (19), the sensor cabin (26) being mounted inside a mining half mask via a buckle (23), and adopting a hollow design, so that the airflow in the silicone half mask (4) flows into the interior of the sensor cabin through the hollow structure.

3. The mining breathing self-rescue system for intelligently detecting poisonous gases according to claim 2 is characterized in that: The sensing cabin (26) comprises a single-chip microcomputer (22), a gas sensor array module (20), a sensor element (21), an air inlet (24), a wire (25) and a power module (27); the air inlet (24) is installed at the air inlet end of the sensing cabin (26); the sensor element (21) of the gas sensor array module (20) adopts one of a micro-electromechanical system substrate, a ceramic substrate, a silicon substrate, a glass substrate or a graphene substrate; a flexible circuit board is used to connect the sensor substrate to the single-chip microcomputer (22); and one end of the wire (25) is connected to the single-chip microcomputer (22).

4. The mining breathing self-rescue system for intelligently detecting poisonous gases according to claim 3 is characterized in that: The single-chip computer (22) comprises modules including a sensor module, a data acquisition signal processing module, a power management module, a communication module and a control module. The sensor module is connected to the control module via the data acquisition signal processing module. The power management module and the communication module are respectively connected to the control module. The single-chip computer is responsible for receiving sensor signals, processing data and executing control logic. The single-chip computer model is one of Arduino, ESP32 or STM32. The power management unit chip type is a power management IC, which is used to provide stable power supply, manage power distribution and protection. The data acquisition signal processing module amplifies, filters and digitizes the analog signal output by the sensor module. The single-chip computer then processes the signal and extracts feature values, and runs preprocessing and decision logic to make real-time predictions and decisions based on the sensor data and the trained model.

5. The mining breathing self-rescue system for intelligently detecting poisonous gases according to claim 1 is characterized in that: A front cover (1) is arranged on the outside of the mining silicone half mask (4), an exhalation channel (5) is provided on the front cover (1), a first control valve (3) is installed on one side of the mining silicone half mask (4), the first control valve (3) is installed on a first valve housing (2), a second control valve (16) is installed on the other side of the mining silicone half mask (4), the second control valve (16) is installed on a second valve housing (17), a bracket (15) is installed inside the second valve housing (17), a rotating shaft (18) is installed on the bracket (15), the second control valve (16) is installed on the breathing tube (14), and a fan (28) is also arranged on the inside of the first control valve (3).

6. The mining breathing self-rescue system for intelligently detecting poisonous gases according to claim 1 is characterized in that: The silicone half mask (4) is also connected to the airbag (10) via an inhalation tube (12) and an exhalation tube (14); the airbag (10) is installed above the self-rescuer housing (9) via a purification tank (29); a compressed oxygen cylinder (8) is also installed in the self-rescuer housing (9); and a pressure gauge (6) and a cylinder switch (7) are also installed on the compressed oxygen cylinder (8).

7. The mining breathing self-rescue system for intelligently detecting poisonous gases according to claim 6 is characterized in that: A pressure relief valve (13) and an air supply pressure plate (11) are respectively installed inside the air bag (10).

8. A method for using the mining breathing self-rescue system for intelligently detecting poisonous gases as claimed in claim 1, characterized in that: The method of use includes the following steps: A. When using, put the silicone half mask on the user's face; B. The exhalation pipe of the mining half mask is connected to the compressed oxygen self-rescuer purification tank for purifying the exhaled gas. The other side is the inhalation pipe connected to the compressed oxygen self-rescuer airbag. The airbag stores the oxygen released by the regulator of the compressed oxygen cylinder and the exhaled gas of the human body after filtering and purification by the purification tank. C. The sensor element collects the toxic and harmful gas signals in the mine in real time; D. The data acquisition signal processing module amplifies, filters and digitizes the analog signal output by the sensor element; E. Then the single chip microcomputer processes the signal and extracts the feature value, and runs the pre-processing and decision logic; F. Make real-time predictions and decisions based on sensor data and trained models; G. Finally, when the concentration of harmful gases detected exceeds the preset threshold, an early warning is automatically triggered, the control valve is closed, the warning light emits a red warning, and the miner opens the compressed oxygen self-rescuer to adjust the oxygen delivery.

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