Mine Hong automated gas calibration equipment and method suitable for coal mines

Abstract

The present invention belongs to the technical field of mine calibration equipment, and relates to a mine-automated gas calibration equipment and method suitable for coal mines, including: a call module, a charging module and a control module. The present invention can input the type of environmental gas monitoring sensor and call the calibration flow value of the environmental gas monitoring sensor, so that the control module can control the charging module to adjust the delivery flow value of the zero gas to the calibration flow value and then deliver it into the environmental gas monitoring sensor, and then adjust the delivery flow value of the standard gas to the calibration flow value and then deliver it into the environmental gas monitoring sensor, and accurately control the gas flow entering the environmental gas monitoring sensor to avoid errors in the calibration of the environmental gas monitoring sensor, so that the environmental gas data is more accurate, and at the same time, it can also avoid the situation where the traditional standard gas bag and the zero gas bag are scratched and damaged in the complex environment of the mine.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine calibration equipment, and relates to a mine automation gas calibration equipment and method suitable for coal mines. Background Art

[0002] The coal mine safety monitoring system is a safety monitoring technology system specially used for the coal mine production environment. It collects various environmental and safety data inside the coal mine in real time, monitors the safety status of the coal mine in real time and warns it in advance to ensure the safe production of the coal mine. The system usually includes environmental gas monitoring sensors, data transmission equipment, monitoring centers, data analysis software and other components. Among them, the environmental gas monitoring sensors need to be calibrated regularly as required to ensure the accuracy and reliability of their measurement results.

[0003] At present, standard gas bags and zero gas bags are often used to calibrate environmental gas monitoring sensors. After going down to the mine, the staff first adjusts the environmental gas monitoring sensor to the calibration mode, and then passes the zero gas in the zero gas bag into the air chamber of the environmental gas monitoring sensor. After the reading on its window stabilizes near zero, the standard gas in the standard gas bag is passed into the air chamber of the environmental gas monitoring sensor, and the calibration parameters of the sensor are adjusted until the sensor reading matches the known concentration of the standard gas.

[0004] However, since the calibration of different types of environmental gas monitoring sensors is closely related to the gas flow rate, precise flow control is the key to ensuring that the environmental gas monitoring sensors are calibrated to accurate values ​​during the calibration process. It is difficult to achieve precise flow control using a calibration gas bag, which leads to errors in the calibration of environmental gas monitoring sensors and affects the accurate feedback of environmental gas data. Summary of the invention

[0005] The purpose of the present invention is to provide an automated gas calibration device and method suitable for coal mines, which can accurately control the gas flow to meet the calibration flow value of the environmental gas monitoring sensor, avoid errors in the calibration of the environmental gas monitoring sensor, and make the environmental gas data more accurate.

[0006] To achieve the above purpose, the present invention provides a specific technical solution of a mine automation gas calibration device and method suitable for coal mines as follows:

[0007] A mine-automated gas calibration device suitable for coal mines, comprising:

[0008] A calling module is used to input the type of the environmental gas monitoring sensor and to call the calibration flow value thereof according to the type of the environmental gas monitoring sensor;

[0009] The charging module stores zero gas and standard gas respectively, and is used to sequentially pass the zero gas and standard gas into the environmental gas monitoring sensor after being connected with the environmental gas monitoring sensor, and can adjust the delivery flow value of the zero gas and the delivery flow value of the standard gas respectively;

[0010] The control module is electrically connected to the calling module and the charging module respectively, and is used for receiving the calibrated flow value sent from the calling module and sending control instructions to the charging module, so that the charging module first adjusts the delivery flow value of the zero gas to the calibrated flow value and then delivers it into the environmental gas monitoring sensor for zeroing operation. After the zeroing operation is completed, the charging module is controlled to adjust the delivery flow value of the standard gas to the calibrated flow value and then deliver it into the environmental gas monitoring sensor.

[0011] The present invention is also characterized in that:

[0012] The calling modules include:

[0013] The mobile terminal is used to store the calibrated flow values ​​of different types of environmental gas monitoring sensors, and then input the type of the environmental gas monitoring sensor into the mobile terminal to retrieve the stored calibrated flow value corresponding to the type of environmental gas monitoring sensor.

[0014] The mobile terminal and the control module are connected via a one-touch transmission module, which is used to transmit the calibrated flow value of the environmental gas monitoring sensor to the control module using the one-touch transmission technology after the mobile terminal touches the one-touch transmission module.

[0015] The inflation module includes:

[0016] Two gas storage units, storing zero gas and standard gas respectively;

[0017] A delivery unit, one end of which is used to be connected to the gas chamber inlet of the environmental gas monitoring sensor, and the other end of which is respectively connected to the outlets of the two gas storage units;

[0018] The two flow regulating units are respectively arranged at the outlets of the two gas storage units, and the two flow regulating units are respectively electrically connected to the control modules.

[0019] A flow detection unit is provided on the delivery unit, and the flow detection unit is electrically connected to the control module. The flow detection unit is used to detect the gas flow value delivered by the delivery unit and send the detected gas flow value to the control module. The control module is electrically connected to a display module, and the display module is used to display the detected gas flow value in real time.

[0020] It also includes:

[0021] A shooting unit, used to shoot the image of the window of the environmental gas monitoring sensor in real time during the calibration process;

[0022] The image extraction unit is used to receive the image of the environmental gas monitoring sensor window, and extract the numbers in the environmental gas monitoring sensor window image to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and send the numbers displayed in real time in the environmental gas monitoring sensor window to the control module.

[0023] A Kuanghong AI automated gas calibration method suitable for coal mines, comprising the following steps:

[0024] Connect one end of the conveying unit to the gas chamber entrance of the environmental gas monitoring sensor, input the type of the environmental gas monitoring sensor into the mobile terminal, retrieve the calibrated flow value corresponding to the type of the environmental gas monitoring sensor, touch the mobile terminal with the one-touch transmission module, and use the one-touch transmission technology to transmit the calibrated flow value of the environmental gas monitoring sensor to the control module;

[0025] After receiving the calibrated flow value of the environmental gas monitoring sensor, the control module first sends a control instruction to the flow regulating unit at the outlet of the gas storage unit storing zero gas, and controls the delivery flow value of the zero gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor for zeroing operation. After zeroing is completed, the control module controls the flow regulating unit at the outlet of the gas storage unit storing standard gas to open, and controls the delivery flow value of the standard gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor for calibration operation.

[0026] When the delivery flow value of the controlled zero gas reaches the calibrated flow value and enters the gas chamber of the environmental gas monitoring sensor for zeroing operation, the shooting unit takes the image of the environmental gas monitoring sensor window in real time, the image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the environmental gas monitoring sensor window image to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and sends the numbers displayed in real time in the environmental gas monitoring sensor window to the control module. When the numbers displayed in real time in the environmental gas monitoring sensor window stabilize at zero, the control module controls the flow regulating unit at the outlet of the gas storage unit storing the zero gas to be closed.

[0027] When the delivery flow value of the controlled standard gas reaches the calibration flow value and enters the gas chamber of the environmental gas monitoring sensor for calibration operation, the shooting unit takes the image of the environmental gas monitoring sensor window in real time, the image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the image of the environmental gas monitoring sensor window to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and sends the numbers displayed in real time in the environmental gas monitoring sensor window to the control module. When the display value of the standard gas concentration on the environmental gas monitoring sensor window rises to the warning point, the environmental gas monitoring sensor enters the warning state, and then the control module controls the two flow regulating units to open at the same time, and controls the flow regulating unit at the outlet of the gas storage unit storing zero gas to continue to open, and controls the flow regulating unit at the outlet of the gas storage unit storing standard gas to continue to open, so as to dynamically adjust the environmental gas monitoring sensor, and quickly adjust the environmental gas monitoring sensor from the warning state to the normal state.

[0028] The invention discloses an automatic gas calibration device and method suitable for coal mines, which has the following advantages: through the cooperation of the calling module, the inflation module and the control module, the type of the environmental gas monitoring sensor can be input and the calibration flow value of the environmental gas monitoring sensor can be called, so that the control module can control the inflation module to adjust the delivery flow value of the zero gas to the calibration flow value and then deliver it into the environmental gas monitoring sensor, and then the inflation module can adjust the delivery flow value of the standard gas to the calibration flow value and then deliver it into the environmental gas monitoring sensor, so as to accurately control the gas flow entering the environmental gas monitoring sensor, avoid errors in the calibration of the environmental gas monitoring sensor, and make the environmental gas data more accurate. At the same time, it can also avoid the situation where the traditional standard gas bag and the zero gas bag are scratched and damaged in the complex environment of the mine and leak. In addition, it can also be reused, avoiding the waste caused by the limitation of the number of times the traditional airbag can be used, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the system structure of the calling module and the control module in the present invention;

[0030] Figure 2 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 3 It is a schematic diagram of the system structure of the identification module and the control module in the present invention;

[0032] Figure 4 It is a schematic diagram of the calibration method in the present invention.

[0033] Reference numerals:

[0034] 1. Control module; 2. Gas storage unit; 3. Transport unit; 4. Flow regulating unit; 5. Identification module; 6. Shell. DETAILED DESCRIPTION

[0035] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, such as A and / or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" refers to two or more than two. The following terms "first" and "second" are used for descriptive purposes only and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0036] like Figure 1As shown, the present invention provides a mine automation gas calibration equipment suitable for coal mines, including a calling module, a charging module and a control module 1. The calling module is used to input the type of the environmental gas monitoring sensor, and the calibration flow value of the environmental gas monitoring sensor is called according to the type of the environmental gas monitoring sensor. The charging module stores zero gas and standard gas respectively. The charging module is used to sequentially introduce the zero gas and the standard gas into the environmental gas monitoring sensor after being connected with the environmental gas monitoring sensor, and can adjust the delivery flow value of the zero gas and the delivery flow value of the standard gas respectively. The control module is electrically connected to the calling module 5 and the charging module respectively. The control module is used to receive the calibration flow value sent from the calling module 5, and send a control instruction to the charging module, so that the charging module first adjusts the delivery flow value of the zero gas to the calibration flow value and then delivers it into the environmental gas monitoring sensor for zeroing operation. After the zeroing operation is completed, the charging module is controlled to adjust the standard gas After the delivery flow value of the gas reaches the calibrated flow value, it is transported into the environmental gas monitoring sensor. By cooperating with the call module 5, the inflation module and the control module, the type of the environmental gas monitoring sensor can be input and the calibrated flow value of the environmental gas monitoring sensor can be called, so that the control module can control the inflation module to adjust the delivery flow value of the zero gas to the calibrated flow value and then transport it into the environmental gas monitoring sensor. Then, the inflation module adjusts the delivery flow value of the standard gas to the calibrated flow value and then transports it into the environmental gas monitoring sensor. The gas flow entering the environmental gas monitoring sensor is accurately controlled to avoid errors in the calibration of the environmental gas monitoring sensor, making the environmental gas data more accurate. At the same time, it can also prevent traditional standard gas bags and zero gas bags from being scratched and damaged in the complex environment of mines and leaking. In addition, it can also be reused, avoiding the waste caused by the limited number of uses of traditional airbags and saving production costs.

[0037] like Figure 1 , Figure 2 As shown, the retrieval module 5 includes a mobile terminal, which is used to store the calibrated flow values ​​of different types of environmental gas monitoring sensors, and then input the type of the environmental gas monitoring sensor into the mobile terminal to retrieve the stored calibrated flow value corresponding to the type of environmental gas monitoring sensor.

[0038] like Figure 1As shown, the mobile terminal and the control module are connected via a one-touch transmission module, which is used to transmit the calibrated flow value of the environmental gas monitoring sensor to the control module using the one-touch transmission technology after the mobile terminal touches the one-touch transmission module. The one-touch transmission module consists of a Kuanghong one-touch transmission chip and a Bluetooth / WiFi module. The model of the Kuanghong one-touch transmission chip is preferably BFD26BNF, and the model of the Bluetooth / WiFi module is preferably BES2600W. By connecting the Kuanghong one-touch transmission chip to the Bluetooth / WiFi module, the mobile terminal is preferably an Android smartphone, and data transmission is performed through the Bluetooth / WiFi module inside the Android smartphone and the Bluetooth / WiFi module inside the one-touch transmission module.

[0039] like Figure 2 As shown, the inflation module includes two gas storage units 2, a conveying unit 3 and two flow regulating units 4. The two gas storage units 2 store zero gas and standard gas respectively. One end of the conveying unit 3 is used to connect to the air chamber inlet of the environmental gas monitoring sensor, and the other end of the conveying unit 3 is respectively connected to the outlets of the two gas storage units 2. The two flow regulating units 4 are respectively arranged at the outlets of the two gas storage units 2, and the two flow regulating units 4 are respectively electrically connected to the control module.

[0040] like Figure 1 As shown, a flow detection unit is provided on the delivery unit 3, and the flow detection unit is electrically connected to the control module. The flow detection unit is used to detect the gas flow value delivered by the delivery unit 3 and send the detected gas flow value to the control module. The control module is electrically connected to a display module, and the display module is used to display the detected gas flow value in real time. The display module is preferably a display screen.

[0041] like Figure 3 As shown, the present invention is a mine-automated gas calibration equipment suitable for coal mines, which also includes an identification module 5. The identification module 5 includes a shooting unit and an image extraction unit. The shooting unit is used to shoot the image of the environmental gas monitoring sensor window in real time during the calibration process. The image extraction module is used to receive the image of the environmental gas monitoring sensor window, and extract the numbers in the environmental gas monitoring sensor window image to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and send the numbers displayed in real time in the environmental gas monitoring sensor window to the control module.

[0042] like Figure 2 As shown, the present invention is a mine automation gas calibration equipment suitable for coal mines, which also includes a shell 6, a control module 1 is arranged inside the shell 6, two gas storage units 2 are arranged in the shell 6 and are located on both sides of the control module 1, a conveying unit 3 is arranged in the shell 6 and one end passes through the inner wall of the shell 6 and is located outside the shell 6, and an identification module 5 is arranged on the side of the shell 6.

[0043] like Figure 1 As shown, a mine AI automatic gas calibration method suitable for coal mines includes the following steps:

[0044] Connect one end of the conveying unit 3 to the air chamber entrance of the environmental gas monitoring sensor, input the type of the environmental gas monitoring sensor into the mobile terminal, retrieve the calibrated flow value corresponding to the type of the environmental gas monitoring sensor, touch the mobile terminal with the one-touch transmission module, and use the one-touch transmission technology to transmit the calibrated flow value of the environmental gas monitoring sensor to the control module;

[0045] After receiving the calibrated flow value of the environmental gas monitoring sensor, the control module first sends a control instruction to the flow regulating unit at the outlet of the gas storage unit storing zero gas, and controls the delivery flow value of the zero gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor for zeroing operation. After zeroing is completed, the control module controls the flow regulating unit at the outlet of the gas storage unit storing standard gas to open, and controls the delivery flow value of the standard gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor for calibration operation.

[0046] Among them, when the delivery flow value of the controlled zero gas reaches the calibrated flow value and enters the gas chamber of the environmental gas monitoring sensor for zeroing operation, the shooting unit takes the image of the environmental gas monitoring sensor window in real time, the image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the environmental gas monitoring sensor window image to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and sends the numbers displayed in real time in the environmental gas monitoring sensor window to the control module. When the numbers displayed in real time in the environmental gas monitoring sensor window stabilize at zero, the control module controls the flow regulating unit at the outlet of the gas storage unit storing zero gas to be closed.

[0047] Among them, when the delivery flow value of the controlled standard gas reaches the calibration flow value and enters the gas chamber of the environmental gas monitoring sensor for calibration operation, the shooting unit takes the image of the environmental gas monitoring sensor window in real time, the image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the environmental gas monitoring sensor window image to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and sends the numbers displayed in real time in the environmental gas monitoring sensor window to the control module. When the display value of the standard gas concentration on the environmental gas monitoring sensor window rises to the warning point, the environmental gas monitoring sensor enters the warning state, and then the control module controls the two flow regulating units to open at the same time, and controls the flow regulating unit at the outlet of the gas storage unit storing zero gas to continue to open, and controls the flow regulating unit at the outlet of the gas storage unit storing standard gas to continue to open, so as to dynamically adjust the environmental gas monitoring sensor and quickly adjust the environmental gas monitoring sensor from the warning state to the normal state.

[0048] After receiving the calibration flow value of the environmental gas monitoring sensor, the control module first sends a control instruction to the flow regulating unit 4 at the outlet of the gas storage unit 2 storing the zero gas, and controls the delivery flow value of the zero gas to reach the calibration flow value before entering the gas chamber of the environmental gas monitoring sensor;

[0049] Working principle: When in use, one end of the delivery unit 3 is connected to the air chamber entrance of the environmental gas monitoring sensor. When the environmental gas monitoring sensor is calibrated for the first time, the type of the environmental gas monitoring sensor is input into the mobile terminal and the calibration flow value corresponding to the stored environmental gas monitoring sensor type is retrieved. Then, the mobile terminal is touched with the one-touch transmission module and the calibration flow value of the environmental gas monitoring sensor is transmitted to the control module 1 using the one-touch transmission technology. The control module 1 receives and stores the calibration flow value of the environmental gas monitoring sensor, and then sends a control instruction to the flow regulating unit 4 at the outlet of the gas storage unit 2 storing zero gas, and controls the delivery flow value of the zero gas to reach the calibration flow value before entering the air chamber of the environmental gas monitoring sensor. The shooting unit captures the image of the environmental gas monitoring sensor window in real time. The image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the image of the environmental gas monitoring sensor window to obtain the numbers displayed in real time on the environmental gas monitoring sensor window, and the numbers displayed in real time on the environmental gas monitoring sensor window are displayed in real time on the environmental gas monitoring sensor window. The digital displayed at the time is sent to the control module, and the overall image of the environmental gas monitoring sensor is taken and sent to the control module 1. The control module 1 corresponds the overall image of the environmental gas monitoring sensor to the calibrated flow value of the environmental gas monitoring sensor and stores it. When the digital displayed in real time in the window of the environmental gas monitoring sensor stabilizes at zero, the control module controls the flow regulating unit 4 at the outlet of the gas storage unit 2 storing zero gas to be closed, and controls the flow regulating unit 4 at the outlet of the gas storage unit 2 storing standard gas to be opened, and controls the delivery flow value of the standard gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor. When the display value of the environmental gas monitoring sensor is consistent with the concentration value of the standard gas, the control module controls the two flow regulating units 4 to be opened at the same time, and controls the flow regulation at the outlet of the gas storage unit 2 storing zero gas to be continuously opened, and controls the flow regulating unit 4 at the outlet of the gas storage unit 2 storing standard gas to be continuously opened, so as to dynamically adjust the environmental gas monitoring sensor and quickly complete the calibration of the environmental gas monitoring sensor.

[0050] When calibrating the same type of environmental gas monitoring sensor again, it is only necessary to use the shooting unit to capture the overall image of the environmental gas monitoring sensor and send it to the control module 1. The control module 1 compares the overall image of the environmental gas monitoring sensor with the stored overall image of the environmental gas monitoring sensor. After confirming that they are the same, it retrieves the calibration flow value corresponding to the overall image of the environmental gas monitoring sensor, and then repeats the above steps.

[0051] It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. A mine automation gas calibration equipment suitable for coal mines, characterized in that: include: A calling module is used to input the type of the environmental gas monitoring sensor and to call the calibration flow value thereof according to the type of the environmental gas monitoring sensor; The charging module stores zero gas and standard gas respectively, and is used to sequentially pass the zero gas and standard gas into the environmental gas monitoring sensor after being connected with the environmental gas monitoring sensor, and can adjust the delivery flow value of the zero gas and the delivery flow value of the standard gas respectively; The control module is electrically connected to the calling module and the charging module respectively, and is used for receiving the calibrated flow value sent from the calling module and sending control instructions to the charging module, so that the charging module first adjusts the delivery flow value of the zero gas to the calibrated flow value and then delivers it into the environmental gas monitoring sensor for zeroing operation. After the zeroing operation is completed, the charging module is controlled to adjust the delivery flow value of the standard gas to the calibrated flow value and then deliver it into the environmental gas monitoring sensor.

2. The automatic gas calibration equipment for coal mines according to claim 1 is characterized in that: The calling module includes: The mobile terminal is used to store the calibrated flow values ​​of different types of environmental gas monitoring sensors, and then input the type of the environmental gas monitoring sensor into the mobile terminal to retrieve the stored calibrated flow value corresponding to the type of environmental gas monitoring sensor.

3. The automatic gas calibration equipment for coal mines according to claim 2 is characterized in that: The mobile terminal is connected to the control module via a touch transmission module, and the touch transmission module is used to transmit the calibrated flow value of the environmental gas monitoring sensor to the control module using a touch transmission technology after the mobile terminal touches the touch transmission module.

4. The automatic gas calibration equipment for coal mines according to claim 3 is characterized in that: The inflation module comprises: Two gas storage units, storing zero gas and standard gas respectively; A delivery unit, one end of which is used to be connected to the gas chamber inlet of the environmental gas monitoring sensor, and the other end of which is respectively connected to the outlets of the two gas storage units; The two flow regulating units are respectively arranged at the outlets of the two gas storage units, and the two flow regulating units are respectively electrically connected to the control modules.

5. The automatic gas calibration equipment for coal mines according to claim 4 is characterized in that: The delivery unit is provided with a flow detection unit, which is electrically connected to the control module. The flow detection unit is used to detect the gas flow value delivered by the delivery unit and send the detected gas flow value to the control module. The control module is electrically connected to a display module, and the display module is used to display the detected gas flow value in real time.

6. The automatic gas calibration equipment for coal mines according to claim 5 is characterized in that: Also included is an identification module, the identification module comprising: A shooting unit, used to shoot the image of the window of the environmental gas monitoring sensor in real time during the calibration process; The image extraction unit is used to receive the image of the environmental gas monitoring sensor window, and extract the numbers in the environmental gas monitoring sensor window image to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and send the numbers displayed in real time in the environmental gas monitoring sensor window to the control module.

7. A mine AI automated gas calibration method suitable for coal mines, characterized in that: The use of the Mine Hong automated gas calibration equipment applicable to coal mines as claimed in claim 6 comprises the following steps: Connect one end of the conveying unit to the gas chamber entrance of the environmental gas monitoring sensor, input the type of the environmental gas monitoring sensor into the mobile terminal, retrieve the calibrated flow value corresponding to the type of the environmental gas monitoring sensor, touch the mobile terminal with the one-touch transmission module, and use the one-touch transmission technology to transmit the calibrated flow value of the environmental gas monitoring sensor to the control module; After receiving the calibrated flow value of the environmental gas monitoring sensor, the control module first sends a control instruction to the flow regulating unit at the outlet of the gas storage unit storing zero gas, and controls the delivery flow value of the zero gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor for zeroing operation. After zeroing is completed, the control module controls the flow regulating unit at the outlet of the gas storage unit storing standard gas to open, and controls the delivery flow value of the standard gas to reach the calibrated flow value before entering the gas chamber of the environmental gas monitoring sensor for calibration operation.

8. The method for automatic gas calibration of coal mines according to claim 7 is characterized in that: When the delivery flow value of the controlled zero gas reaches the calibrated flow value and enters the gas chamber of the environmental gas monitoring sensor for zeroing operation, the shooting unit shoots the image of the environmental gas monitoring sensor window in real time, the image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the image of the environmental gas monitoring sensor window to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and sends the numbers displayed in real time in the environmental gas monitoring sensor window to the control module. When the numbers displayed in real time in the environmental gas monitoring sensor window stabilize at zero, the control module controls the flow regulating unit at the outlet of the gas storage unit storing the zero gas to close.

9. The method for automatic gas calibration of coal mines according to claim 7 is characterized in that: When the delivery flow value of the controlled standard gas reaches the calibration flow value and enters the gas chamber of the environmental gas monitoring sensor for calibration operation, the shooting unit takes the image of the environmental gas monitoring sensor window in real time, the image extraction module receives the image of the environmental gas monitoring sensor window, and extracts the numbers in the image of the environmental gas monitoring sensor window to obtain the numbers displayed in real time in the environmental gas monitoring sensor window, and sends the numbers displayed in real time in the environmental gas monitoring sensor window to the control module. When the display value of the standard gas concentration on the environmental gas monitoring sensor window rises to the warning point, the environmental gas monitoring sensor enters the warning state, and then the control module controls the two flow regulating units to open at the same time, and controls the flow regulating unit at the outlet of the gas storage unit storing zero gas to continue to open, and controls the flow regulating unit at the outlet of the gas storage unit storing standard gas to continue to open, so as to dynamically adjust the environmental gas monitoring sensor, and quickly adjust the environmental gas monitoring sensor from the warning state to the normal state.

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