Mine gas detection device based on electronic information

Abstract

The utility model relates to the technical field of gas detection equipment, in particular to a mine gas detection device based on electronic information, which comprises a universal bamboo joint pipe and a detection mechanism, a limiting plate is arranged at one end of the universal bamboo joint pipe, the detection mechanism is connected to one end of the universal bamboo joint pipe through a heat dissipation mechanism, and a cover body is connected to one side of a bottom plate in a buckling manner. A cover plate is arranged on one side of the bottom plate, a sensor detection module is arranged on one side of the bottom plate, and the sensor detection module comprises a metal oxide semiconductor, a quartz crystal microbalance, a surface acoustic wave and quantum dot spectrometer and an environment sensor assembly. Three types of sensor chips of a metal oxide semiconductor, a quartz crystal microbalance and a surface acoustic wave are integrated to form a 16-channel bionic olfaction array, the sensitivity is improved through multi-modal data fusion, meanwhile, detection including but not limited to methane and carbon monoxide gas is achieved, the humidity resistance and dust interference resistance are extremely high, meanwhile, a detection mechanism is cooled, and the detection efficiency is improved. And the detection mechanism can work conveniently.

Description

Technical Field

[0001] This utility model relates to the field of gas detection equipment technology, and in particular to a mine gas detection device based on electronic information. Background Technology

[0002] Mine gas detection devices are used to detect the composition and concentration of various gases in mines, primarily to ensure air quality and safety within mines.

[0003] Common types: Portable gas detectors; typically used for temporary detection or short-term measurement of the concentration of multiple gases in the ambient air of a certain area. They are characterized by their small size, light weight, and portability, making them suitable for workers to conduct rapid detection at different locations within the mine; Fixed online gas detection devices; generally installed in fixed locations within the mine, such as mining faces, return airways, and gas extraction pipelines. They can continuously monitor the gas in specific areas in real time, promptly detect changes in gas concentration and issue alarms, and are suitable for long-term monitoring and automated control.

[0004] In the prior art, the relevant technology can be referred to Chinese Patent Application No. CN201820403820.9, which discloses a mine gas detection device. The bracket provides space for heat dissipation while installing the internal equipment to facilitate airflow. The first fan and the second fan respectively dissipate heat and cool different parts of the equipment, improving the heat dissipation effect of the device, reducing the impact of high temperature on equipment detection, and making it easy for personnel to carry the equipment. The hook can suspend the equipment for detection, and the clamping sleeve can fix the equipment.

[0005] In the process of realizing this application, the inventors discovered the following problems with the prior art: The above-mentioned device mainly solves the problem that "as the detection equipment is used, the internal temperature of the equipment rises, which is detrimental to the collected combustible gas and may also affect the normal progress of the measurement." However, in the prior art, traditional sensors are easily affected by temperature and humidity, which can easily lead to insufficient stability. In addition, traditional detection equipment requires a calibration cycle to ensure the accuracy of the detection results. Furthermore, some equipment can only detect a single or a few gases, which cannot meet the composite monitoring needs of multi-component gases in mines. Utility Model Content

[0006] The main objective of this invention is to provide a mine gas detection device based on electronic information, aiming to solve the technical problems in the prior art.

[0007] This utility model proposes a mine gas detection device based on electronic information, including a universal bamboo tube and a detection mechanism: one end of the universal bamboo tube is provided with a limiting plate, and the end of the universal bamboo tube away from the limiting plate is fastened to the detection mechanism through a heat dissipation mechanism.

[0008] The detection mechanism includes a base plate and a cover. The cover is fastened to one side of the base plate, and a cover plate is provided on the side of the base plate away from the cover. A sensor detection module is provided on the side of the base plate where the cover is installed, and a circuit mounting assembly is provided on the side of the base plate where the cover plate is installed. The sensor detection module includes a metal oxide semiconductor sensor, a quartz crystal microbalance sensor, and a surface acoustic wave sensor, as well as a quantum dot spectrometer and an environmental sensor assembly. The three types of sensors in the sensor detection module—the metal oxide semiconductor sensor, the quartz crystal microbalance sensor, and the surface acoustic wave sensor—form a sixteen-channel biomimetic olfactory array. The quantum dot spectrometer in the sensor detection module is installed between the metal oxide semiconductor sensor, the quartz crystal microbalance sensor, and the surface acoustic wave sensor. The environmental sensor assembly in the sensor detection module includes a temperature and humidity sensor, an air pressure sensor, a wind speed and direction sensor, a dust concentration sensor, a vibration sensor, a smoke sensor, and an acoustic wave sensor.

[0009] Preferably, the circuit mounting assembly includes a computing core unit, a communication interface module, an edge computing node, and a redundancy module. The computing core unit in the circuit mounting assembly includes a main control chip and a storage module. The communication interface module in the circuit mounting assembly includes a multi-protocol communication board. The edge computing node in the circuit mounting assembly includes an FPGA accelerator card and a time-sensitive network switch. The redundancy module in the circuit mounting assembly includes a dual power management IC and a watchdog circuit.

[0010] Preferably, the metal oxide semiconductor sensor, quartz crystal microbalance sensor, surface acoustic wave sensor, quantum dot spectrometer, and temperature and humidity sensor, air pressure sensor, wind speed and direction sensor, dust concentration sensor, vibration sensor, smoke sensor, and sound wave sensor in the sensor detection module are electrically connected to the circuit mounting assembly installed on one side of the base plate.

[0011] Preferably, the main control chip in the computing core unit adopts an STM32H743+NXPi.MX8MPlus dual-processor architecture, and the main control chip integrates NVIDIA Jetson AGX Orin. The storage module in the computing core unit consists of a KIOXIA256GBeMMC5.1 chip and a Cypress CY14B104NA-ZSP45XI. The communication interface module consists of a Quectel RM500Q-GL5G module, a Semtech SX1262 LoRa module, and a TISN65HVD230DRCAN bus interface. The FPGA acceleration card in the edge computing node consists of an ARM Cortex-A53 and an FPGA logic unit. The software model in the circuit mounting assembly consists of a gas diffusion prediction model, an anomaly detection engine, a Unity3D engine, and the OPCUA protocol.

[0012] Preferably, the gas diffusion prediction model in the circuit mounting assembly is a combination of a CFD simulation algorithm running on an NVIDIA GPU and an LSTM neural network, and the anomaly detection engine in the circuit mounting assembly is a hybrid combination of IsolationForest and variational autoencoder on a CPU+FPGA heterogeneous architecture.

[0013] Preferably, the side end face of the limiting plate is provided with a limiting hole through it laterally. The heat dissipation mechanism includes a limiting block and a snap-fit ​​hole. The side end face of the limiting block is provided with a snap-fit ​​hole, and a heat-conducting copper sheet is provided between the snap-fit ​​holes. The heat-conducting copper sheet is connected to a heat dissipation copper plate. The heat dissipation copper plate is installed inside the ventilation hole, and an intake fan and an exhaust fan are respectively installed above and below the inside of the ventilation hole.

[0014] Preferably, the limiting block in the heat dissipation mechanism is fastened to the cover plate in the detection mechanism through a snap-fit ​​hole. The limiting block is connected to the universal bamboo tube for limiting. The cavity carved into the inner cavity of the heat-conducting copper sheet forms a connected circulation loop with the heat dissipation copper plate.

[0015] Preferably, the intake fan and the exhaust fan have the same airflow direction, and the intake fan and the exhaust fan are connected through the ventilation holes and the heat dissipation copper plate to form a communication structure.

[0016] The beneficial effects of this invention are as follows: In use, an electronic nose array is employed, integrating three types of sensor chips: metal oxide semiconductor, quartz crystal microbalance, and surface acoustic wave, forming a 16-channel biomimetic olfactory array; a spectral enhancement module is used, employing a miniaturized quantum dot spectrometer in the 200-2500nm band, combined with machine learning algorithms to achieve gas fingerprint spectrum analysis; it overcomes the limitations of a single sensor, improving sensitivity through multimodal data fusion, and can simultaneously detect gases including but not limited to methane, carbon monoxide, and hydrogen sulfide, with extremely strong resistance to humidity and dust interference; the detection mechanism is positioned and installed using a universal bamboo-joint tube, limiting plate, limiting hole, heat dissipation mechanism, limiting block, snap-fit ​​hole, thermally conductive copper sheet, heat dissipation copper plate, ventilation hole, intake fan, and exhaust fan, while simultaneously dissipating heat from the detection mechanism to facilitate its operation, eliminating the need for weekly calibration; all detection data is uploaded to the blockchain in real time based on Hyperledger Fabric, ensuring the immutability of monitoring records and providing a credible chain of evidence for tracing accident liability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the detection mechanism according to an embodiment of the present utility model.

[0018] Figure 2 This is a three-dimensional structural diagram of the sensor detection module in an embodiment of this utility model.

[0019] Figure 3 This is a cross-sectional structural diagram of the circuit mounting assembly according to an embodiment of the present invention.

[0020] Figure 4 This is a cross-sectional structural diagram of the heat dissipation mechanism according to an embodiment of the present invention.

[0021] Figure 5 This is a side view of the detection mechanism according to an embodiment of the present invention.

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0024] like Figure 1 - Figure 5 As shown, this application provides a method for a mine gas detection device based on electronic information, including a universal bamboo tube 1 and a detection mechanism 2: one end of the universal bamboo tube 1 is provided with a limiting plate 11, and the end of the universal bamboo tube 1 away from the limiting plate 11 is fastened to the detection mechanism 2 through a heat dissipation mechanism 12. The universal bamboo tube 1 facilitates the fixation of the detection mechanism 2. The universal bamboo tube 1 is a tube that can be bent and oriented arbitrarily, and it is convenient to disassemble and maintain the detection mechanism 2 in the future. Considering the complex mining working environment, the position of the detection mechanism 2 can be adjusted by the universal bamboo tube 1 to adapt to the relatively complex environment.

[0025] The detection mechanism 2 includes a base plate 21 and a cover 22. The cover 22 is fastened to one side of the base plate 21 and fastened to the side of the base plate 21. The cover 22 is specifically a mesh structure woven with a steel wire mesh frame, which can protect the sensor detection module 24 and the circuit mounting assembly 25, thereby protecting the electronic components inside the cover 22 and the base plate 21. It also facilitates gas measurement by the electronic components inside the cover 22 and the base plate 21. A cover plate 23 is provided on the side of the base plate 21 away from the cover 22. A sensor detection module 24 is provided on one side of the housing 22, and a circuit mounting assembly 25 is provided on the side of the base plate 21 where the cover plate 23 is mounted. The sensor detection module 24 includes a metal oxide semiconductor sensor, a quartz crystal microbalance sensor, and a surface acoustic wave sensor, along with a quantum dot spectrometer and an environmental sensor assembly. The three types of sensors in the sensor detection module 24—the metal oxide semiconductor sensor, the quartz crystal microbalance sensor, and the surface acoustic wave sensor—form a sixteen-channel biomimetic olfactory array. The quantum dot spectrometer in the sensor detection module 24 is mounted on... The environmental sensor components in sensor detection module 24, which are installed between metal oxide semiconductor sensor, quartz crystal microbalance sensor and surface acoustic wave sensor, include temperature and humidity sensor, air pressure sensor, wind speed and direction sensor, dust concentration sensor, vibration sensor, smoke sensor and sound wave sensor, to facilitate gas measurement in the space formed between cover 22 and base plate 21. Circuit mounting component 25 includes computing core unit 251, communication interface module 252, edge computing node 253 and redundancy module 254. The computing core unit 251 in circuit mounting component 25 includes main control chip and storage module. The communication interface module 252 in circuit mounting component 25 includes multi-protocol communication board. The edge computing node 253 in circuit mounting component 25 includes FPGA accelerator card and time-sensitive network switch. The redundancy module 254 in circuit mounting component 25 includes dual power management IC and watchdog circuit. The electrical connection between sensor detection module 24 and circuit mounting component 25 conforms to GJB9386-2018 Test Method for Data Transmission Performance of Electrical Connectors.

[0026] The metal oxide semiconductor sensor, quartz crystal microbalance sensor, surface acoustic wave sensor, quantum dot spectrometer in sensor detection module 24, and the temperature and humidity sensor, air pressure sensor, wind speed and direction sensor, dust concentration sensor, vibration sensor, smoke sensor, and acoustic wave sensor in the environmental sensor assembly are electrically connected to the circuit mounting assembly 25 mounted on one side of the base plate 21. The main control chip in the computing core unit 251 adopts an STM32H743+NXP1.MX8MPlus dual-processor architecture, and the main control chip integrates NVIDIA Jetson AGX Orin. The computing core unit 251... The storage module 251 consists of a KIOXIA256GBeMMC5.1 chip and a Cypress CY14B104NA-ZSP45XI. The communication interface module 252 consists of a Quectel RM500Q-GL5G module, a Semtech SX1262 LoRa module, and a TISN65HVD230DRCAN bus interface. The FPGA acceleration card in the edge computing node 253 consists of an ARM Cortex-A53 and FPGA logic units. The software model in the circuit mounting assembly 25 consists of a gas diffusion prediction model, an anomaly detection engine, a Unity3D engine, and an OPCU. The protocol consists of a gas diffusion prediction model in circuit mounting component 25, which combines a CFD simulation algorithm running on an NVIDIA GPU with an LSTM neural network. The anomaly detection engine in circuit mounting component 25 is specifically a hybrid combination of IsolationForest and variational autoencoder on a CPU+FPGA heterogeneous architecture. In use, an electronic nose array is employed, integrating three types of sensor chips: metal oxide semiconductor, quartz crystal microbalance, and surface acoustic wave, forming a 16-channel biomimetic olfactory array. A spectral enhancement module is used, employing a miniaturized quantum dot spectrometer in the 200-2500nm wavelength band, combined with a machine... The instrument learning algorithm enables gas fingerprint spectrum analysis; it breaks through the limitations of a single sensor and improves sensitivity through multimodal data fusion, simultaneously detecting gases including but not limited to methane, carbon monoxide, and hydrogen sulfide, and has extremely strong resistance to humidity and dust interference. In this embodiment, the metal oxide semiconductor sensor, quartz crystal microbalance sensor, surface acoustic wave sensor, quantum dot spectrometer, and environmental sensor are all commercially available devices known to those skilled in the art. They can be customized or selected according to actual needs. Here, we only use them without making any structural or functional improvements, and we will not go into details.

[0027] A limiting hole 111 is provided transversely through the side end face of the limiting plate 11. The heat dissipation mechanism 12 includes a limiting block 121 and a snap-fit ​​hole 122. The limiting plate 11 is connected to the mine roadway or tied or bolted to the inner wall of the mine through the limiting hole 111, thereby fixing the limiting plate 11 in detail. The side end face of the limiting block 121 is provided with a snap-fit ​​hole 122, and a heat-conducting copper sheet 123 is provided between the snap-fit ​​holes 122. The heat-conducting copper sheet 123 is connected to a heat dissipation copper plate 124. The heat dissipation copper plate 124 is installed inside the ventilation hole 125 and is connected to the ventilation hole 125. An intake fan 126 and an exhaust fan 127 are respectively installed above and below the inner side of the air vent 125. The limiting block 121 in the heat dissipation mechanism 12 forms a fastening structure with the cover plate 23 in the detection mechanism 2 through the snap-fit ​​hole 122. The limiting block 121 is limited and connected to the universal bamboo tube 1. The contact surface between the limiting block 121 and the universal bamboo tube 1 is threaded and limited by bolts. One end of the universal bamboo tube 1 is provided with threads, and the side end face of the limiting block 121 that contacts the universal bamboo tube 1 is provided with a threaded groove. The inner cavity of the heat-conducting copper sheet 123 The excavated cavity and the heat dissipation copper plate 124 form a connected circulation loop. The intake fan 126 and the exhaust fan 127 have the same airflow direction, and the intake fan 126 connects with the exhaust fan 127 through the ventilation hole 125 via the heat dissipation copper plate 124. The detection mechanism 2 is positioned and installed using the universal bamboo joint tube 1, the limiting plate 11, the limiting hole 111, the heat dissipation mechanism 12, the limiting block 121, the snap hole 122, the heat-conducting copper sheet 123, the heat dissipation copper plate 124, the ventilation hole 125, the intake fan 126, and the exhaust fan 127. The testing facility is equipped with a heat dissipation system to facilitate its operation and eliminates the need for weekly calibration. A standard air chamber is installed on one side of the limit plate 11 for zero-point / range calibration. Adaptive calibration is performed through the sensor detection module 24, computing core unit 251, communication interface module 252, edge computing node 253, and redundancy module 254. All testing data is uploaded to the blockchain in real time based on Hyperledger Fabric to ensure that monitoring records are tamper-proof and to provide a reliable chain of evidence for tracing liability for accidents.

[0028] The technical principle of this utility model is as follows: In use, the limiting plate 11 is first connected to the mine roadway or tied or bolted to the inner wall of the mine through the limiting hole 111 to fix the limiting plate 11. The position of the heat dissipation mechanism 12 and the detection mechanism 2 is adjusted by bending the universal bamboo tube 1. The limiting block 121 in the heat dissipation mechanism 12 is fastened to the cover plate 23 in the detection mechanism 2 through the buckle hole 122 so that the detection mechanism 2 can dissipate heat during operation after it is installed in place.

[0029] Furthermore, the heat-conducting copper sheet 123 is arranged in close contact with the cover plate 23 so that the heat generated by the detection mechanism 2 can be transferred to the heat dissipation copper plate 124 through the heat-conducting copper sheet 123, and the intake fan 126 and the exhaust fan 127 blow air to the heat dissipation copper plate 124 through the ventilation hole 125 so as to achieve the effect of heat dissipation of the detection mechanism 2.

[0030] When the detection mechanism 2 is in operation, the gas first comes into contact with the enclosure 22, and then passes through the enclosure 22 into the space between the enclosure 22 and the base plate 21, so that the gas can be measured by the electronic components inside the enclosure 22 and the base plate 21. During the measurement process, gas detection is first performed by the electronic nose array, quantum dot spectrometer, and environmental parameter sensor in the sensor detection module 24. The sensor detection module 24 contains a sixteen-channel biomimetic olfactory array composed of three types of sensors: a metal oxide semiconductor sensor, a quartz crystal microbalance sensor, and a surface acoustic wave sensor. This array is used in conjunction with a miniaturized quantum dot spectrometer. Based on the principle that "metal oxide semiconductor sensors detect gas concentrations from ppm to ppb by detecting changes in conductivity caused by the redox reaction of gas molecules on the surface of sensitive materials; QCM sensors detect trace molecules by detecting the resonant frequency shift of a quartz crystal caused by gas adsorption; and SAW sensors detect gas mass load and viscoelasticity changes by utilizing the frequency change of sound waves propagating on the surface of piezoelectric materials," the complementary nature of these three types of sensors covers different gas characteristics, thereby detecting gases including but not limited to methane, carbon monoxide, and hydrogen sulfide. Simultaneously, the temperature and humidity sensor, air pressure sensor, wind speed and direction sensor, dust concentration sensor, vibration sensor, smoke sensor, and sound wave sensor in the environmental sensor assembly of the sensor detection module 24 respectively detect temperature and humidity, wind speed and direction, dust concentration, vibration, smoke concentration, and sound waves in real time. Furthermore, the gas detection results from the metal oxide semiconductor sensor, quartz crystal microbalance sensor, surface acoustic wave sensor, quantum dot spectrometer, and environmental sensor assembly in the sensor detection module 24 are transmitted in real time to the circuit mounting assembly 25. Since the surrounding environment is detected in real time through the sensor detection module 24, information transmission and processing are mainly handled through the circuit mounting assembly 25. Based on the specific structure of the circuit mounting assembly 25, which is existing in the prior art as described in the specification, information reception, transmission, and processing of gas detection results are performed. This facilitates the detection of multiple gases, and the device has extremely strong resistance to humidity and dust interference. Since the electronic components in the circuit mounting assembly 25 are all commercially available devices known to those skilled in the art, they can be customized or selected according to actual needs. Here, we only use them without making any structural or functional improvements, and we will not elaborate further. Furthermore, the electrical connection between the sensor detection module 24 and the circuit mounting assembly 25 conforms to the GJB9386-2018 Test Method for Data Transmission Performance of Electrical Connectors, thus facilitating information transmission. This device detects gas in real time and sends out corresponding concentration signals. The circuit mounting assembly 25 is linked with the mine's built-in fan, ensuring that the internal methane concentration in the mine remains below 0.5%. Moreover, its real-time detection allows for dynamic adjustment of the fan speed.

[0031] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, apparatus, article, or method. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, apparatus, article, or method that includes that element.

[0032] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An electronic information-based mine gas detection device, characterized by, The utility joint bamboo joint pipe (1) and detection mechanism (2) are connected, one end of the utility joint bamboo joint pipe (1) is provided with a limiting plate (11), and the other end of the utility joint bamboo joint pipe (1) is connected with the detection mechanism (2) through the heat dissipation mechanism (12); The detection mechanism (2) includes a bottom plate (21) and a cover body (22), one side of the bottom plate (21) is connected with the cover body (22), and the other side of the bottom plate (21) away from the cover body (22) is provided with a cover plate (23), one side of the bottom plate (21) installed with the cover body (22) is provided with a sensor detection module (24), one side of the bottom plate (21) installed with the cover plate (23) is provided with a circuit installation assembly (25), the sensor detection module (24) includes a metal oxide semiconductor sensor, a quartz crystal microbalance sensor, a surface acoustic wave sensor, a quantum dot spectrometer and an environmental sensor assembly, the metal oxide semiconductor sensor, the quartz crystal microbalance sensor and the surface acoustic wave sensor in the sensor detection module (24) constitute a sixteen-channel bionic olfactory array, the quantum dot spectrometer in the sensor detection module (24) is installed between the metal oxide semiconductor sensor, the quartz crystal microbalance sensor and the surface acoustic wave sensor, and the environmental sensor assembly in the sensor detection module (24) includes a temperature and humidity sensor, an air pressure sensor, a wind speed and direction sensor, a dust concentration sensor, a vibration sensor, a smoke sensor and a sound wave sensor.

2. The electronic information based mine gas detection device according to claim 1, wherein, The circuit installation assembly (25) includes a computing core unit (251), a communication interface module (252), an edge computing node (253) and a redundancy module (254), the computing core unit (251) in the circuit installation assembly (25) includes a master control chip and a storage module, the communication interface module (252) in the circuit installation assembly (25) includes a multi-protocol communication board, the edge computing node (253) in the circuit installation assembly (25) includes an FPGA acceleration card and a time-sensitive network switch, and the redundancy module (254) in the circuit installation assembly (25) includes a dual power management IC and a watchdog circuit.

3. The electronic information based mine gas detection device according to claim 1, wherein, The metal oxide semiconductor sensor, the quartz crystal microbalance sensor, the surface acoustic wave sensor, the quantum dot spectrometer and the environmental sensor assembly in the sensor detection module (24) are electrically connected with the circuit installation assembly (25) installed on one side of the bottom plate (21).

4. The electronic information based mine gas detection device according to claim 1, wherein, The side end face of the limiting plate (11) is provided with a limiting hole (111) transversely, the heat dissipation mechanism (12) comprises a limiting block (121) and a buckle hole (122), the side end face of the limiting block (121) is provided with the buckle hole (122), and the buckle holes (122) are provided with heat-conducting copper sheets (123) therebetween, the heat-conducting copper sheets (123) are connected with heat-dissipation copper discs (124), the heat-dissipation copper discs (124) are mounted on the inner side of the ventilation hole (125), and the air inlet fan (126) and the air outlet fan (127) are mounted above and below the inner side of the ventilation hole (125) respectively.

5. The electronic information based mine gas detection device according to claim 4, wherein, The limiting block (121) in the heat dissipation mechanism (12) and the cover plate (23) in the detection mechanism (2) constitute a buckling structure through the buckle hole (122), the limiting block (121) is connected with the universal bamboo joint pipe (1) in a limiting mode, and the cavity provided in the heat-conducting copper sheet (123) and the heat-dissipation copper disc (124) constitute a communication circulation loop.

6. The electronic information based mine gas detection device according to claim 4, wherein, The air inlet fan (126) and the air outlet fan (127) have the same air direction, and the air inlet fan (126) and the air outlet fan (127) constitute a communication structure through the ventilation hole (125) and the heat-dissipation copper disc (124).

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