Vehicle-mounted gas monitoring system and debugging correction method thereof

Abstract

The present application belongs to the field of tunnel gas monitoring, and particularly relates to a vehicle-mounted gas monitoring system and a debugging and correction method thereof. The vehicle-mounted gas monitoring system comprises an information input module and a plurality of sensors in the information input module. The gas components in the air are detected, and the detected data information is sent to an information transceiving module. The information transceiving module packs the data information sent by the information input module and sends the packed data information to a central processor module. The central processor module processes the data. The processed data is sent to an information receiving module. The information receiving module sends the data to an alarm module and a control module respectively, so as to start an electronic extinguishing unit and a power-off control unit, and quickly complete power-off and vehicle and extinguishing. Since the vehicle-mounted gas monitoring system can be installed on various vehicles, more restricted vehicles can continue to be used. In addition, through regular debugging and correction, the vehicle-mounted gas monitoring system can always remain sensitive and protect the life and health of workers.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of tunnel gas monitoring, in particular to a vehicle-mounted gas monitoring system and a debugging and correction method thereof. BACKGROUND

[0002] Various vehicles are used in the construction process of tunnels, mines and the like, but due to the special working environment, gas leakage is prone to occur in tunnels or mines, and the use of traditional vehicles can easily cause safety problems. Therefore, a gas monitoring system can be installed on the vehicle to enable the vehicle to respond to sudden gas leakage.

[0003] The prior art also proposes some solutions, such as a tunnel gas monitoring system disclosed in a Chinese patent with publication number CN208669357U, which comprises a support shell, a control cabinet, a gas sensor, a memory, the lower end of the support shell is provided with a gas-permeable shell, the gas-permeable shell is connected to the support shell by screws, the gas-permeable shell is provided with a loudspeaker on one side, the loudspeaker is connected to the support shell by screws, the support shell is internally provided with a signal amplifier, the signal amplifier is connected to the support shell by screws, and the signal amplifier is provided with the gas sensor on one side. The beneficial effects are that the safety is good, the air is first drawn into the support shell before air detection, the spark of internal electrical elements is prevented from leaking, the reminding effect is good, the internal installation part of the tunnel is provided with a camera and a loudspeaker, the workers can be reminded in time when danger occurs, the external equipment has high working efficiency, multiple information can be monitored and processed at the same time, and the timeliness is ensured.

[0004] The vehicles used in tunnels or mines in the prior art are relatively safe in power, but have weak load capacity. However, if a vehicle with an internal combustion engine is used, it cannot be used in tunnels or mines with high risk of gas leakage, greatly limiting the use of various vehicles and increasing the difficulty of construction.

[0005] Therefore, the present application provides a vehicle-mounted gas monitoring system and a debugging and correction method thereof. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background art.

[0007] The technical solution adopted by the present application to solve its technical problems is that the vehicle-mounted gas monitoring system comprises a central processor module, an information transceiver module, an information input module, an alarm module and a control module.

[0008] The information input module detects the gas composition in the air through various sensors therein, and sends the detected data information to the information transceiver module.

[0009] The information transceiver module sends the data information packaged by the information input module to the central processor module, and then receives the information sent by the central processor module, and sends the information to the alarm module and the control module respectively;

[0010] The central processor module analyzes and processes the data information after receiving the data information from the information transceiver module, and judges whether to send alarm information, and if it is judged that the alarm information needs to be sent, the central processor module will send the alarm information to the information transceiver module.

[0011] The control module will immediately respond after receiving the alarm information sent by the information transceiver module, so as to control the various mechanisms in it to stop working urgently.

[0012] The alarm module will immediately respond after receiving the alarm information sent by the information transceiver module, and control the alarm bell to emit loud sound, and control the sound broadcasting device to issue evacuation alarm.

[0013] The control module includes an electronic extinguishing unit and a power-off control unit, and the control module will send an electrical signal to control the motor extinguishing unit after receiving the alarm information, and will also send an electrical signal to the power-off control unit to control various electrical equipment to be powered off.

[0014] A debugging and correction method of a vehicle-mounted gas monitoring device, the debugging and correction method is suitable for the information input module, and the debugging and correction method comprises:

[0015] S1: First, check whether the appearance of the methane sensor is complete, and clean it, then connect the methane sensor with the control center, and preheat for 10 minutes after power on; then adjust the instrument zero point in fresh air, and control the zero value range to be within 0.00-0.03%CH4;

[0016] S2: Then use the calibration device to input 2.00%CH4 standard gas into the gas chamber, adjust the accuracy of the methane sensor, make the display value consistent with the concentration value of the calibrator, and repeatedly adjust until accurate, and the basic error determination process cannot be adjusted again;

[0017] S3: Finally, the basic error is determined, 0.5%, 1.0%, and 3.0% CH4 calibration gas is input into the gas chamber once according to the flow rate during calibration for 90s, each gas is input three times, the average value is calculated, and the basic error of each point is calculated by using the average value and the standard value, and during each gas input process, the measurement alarm point, the power-off point, the power-on point, and the sound and light alarm situation need to be observed at the same time, and the above contents can also be measured separately.

[0018] Preferably, the check device includes a box; the box is fixed with a pair of symmetrically arranged shoulder straps on both sides of the surface; the box is provided with an air bottle and a calibration gas bottle; the air bottle and the calibration gas bottle are both connected with air pipes; the box is provided with a connecting pipe; the two air pipes are connected with the connecting pipe; the bottom surface of the box is fixed with a fixed seat; the top surface of the fixed seat is provided with an insertion slot; the connecting pipe and the insertion slot are slidably connected, and the connecting pipe is clamped with the fixed seat; a pair of symmetrically arranged grooves are opened in the fixed seat; the grooves are slidably connected with baffle plates; a pair of flow guide grooves are opened on both sides of the insertion slot; the bottom of the insertion slot is fixed with a buzzer; the top of the buzzer is fixed with a first starting piece; the wall of the insertion slot is fixed with a film on the top of the buzzer; the bottom surface of the film is fixed with a second starting piece at the corresponding position of the first starting piece; during operation, the vehicle-mounted gas monitoring system needs to be debugged and corrected regularly to be used normally; in order to facilitate the user to debug and correct regularly, and to facilitate the user to debug and correct the information input module of the vehicle-mounted gas system, firstly, the user takes out the connecting pipe in the box, and places the connecting pipe in the receiving range of the methane sensor; then, the valve of the air bottle and the calibration gas bottle is opened respectively through the debugging and correcting method of the vehicle-mounted gas monitoring device to discharge the gas; at the same time, the shoulder straps can also facilitate the user to carry, and facilitate the user to debug and correct the vehicle-mounted gas monitoring system on multiple vehicles; when the user finishes using, the connecting pipe can be inserted into the insertion slot; the connecting pipe will extrude the baffle plate, so that the baffle plate moves towards the groove bottom, and extrudes the spring; finally, the pipe opening of the connecting pipe is in contact with the film to complete the closure of the connecting pipe, so as to prevent the user from forgetting to close the switch valve after using the connecting pipe, which causes the gas to leak and causes safety hazards; at the same time, the leaked gas will also extrude the film, so that the film drives the first starting piece and the second starting piece to contact, thereby starting the buzzer to issue an alarm sound to remind the user to close the switch valve; when the user pulls out the connecting pipe, the baffle plate closes the insertion slot under the action of the spring, so that the residual gas in the insertion slot is sprayed to the outside through the flow guide groove, preventing the residual gas from being directly sprayed from the insertion slot opening to the user, causing damage to the respiratory tract of the user.

[0019] Preferably, the connecting pipe is provided with a switch valve on one side surface; a pair of symmetrically arranged magnet hooks are hinged on both sides of the connecting pipe; a magnet block is inlaid on the side surface of the connecting pipe away from the switch valve; during operation, the user can rotate the magnet hooks on both sides of the connecting pipe counterclockwise, and hang the magnet hooks on the steel frame structure of the vehicle through the magnet hooks, and fix the connecting pipe near the methane sensor through the adsorption of the magnet hooks and the steel frame structure, so as to facilitate the user to free both hands to control the switch valve, and then accurately debug the air output of the air bottle and the calibration gas bottle, so that the calibration of the user is more accurate.

[0020] Preferably, the connecting pipe is fixed with a corrugated telescopic pipe at the end away from the air guide pipe; the corrugated telescopic pipe is fixed with a ring magnet at the end away from the connecting pipe; during operation, in order to better guide the gas discharged from the connecting pipe into the air chamber of the methane sensor, the user can stretch the corrugated telescopic pipe and fix the corrugated telescopic pipe at the air inlet of the air chamber of the methane sensor through the ring magnet, so that the gas in the connecting pipe is better guided into the air chamber of the methane sensor, and the leakage of the gas discharged from the connecting pipe is prevented, thereby preventing inaccurate debugging and correction.

[0021] Preferably, the top of the box is provided with a taking opening; a pair of symmetrical L-shaped sliding grooves are arranged on the surfaces of the two sides of the box; a connecting column is slidably connected in the L-shaped sliding grooves; the taking opening is provided with a box cover; the box cover is rotationally connected with the connecting column; during operation, the user can pull the box cover, when the box cover is pulled to the groove wall near the top of the L-shaped sliding groove, the box cover is then rotated clockwise, and then the box cover is pulled downward, so that the taking opening is completely opened, thereby facilitating the user to operate the air bottle and the calibration gas bottle in the box.

[0022] Preferably, the bottom surface of the box cover is fixed with a lamp strip; the groove wall surface of the L-shaped sliding groove near the bottom of the box is fixed with a first contact piece; the surface of the connecting column is fixed with a second contact piece; during operation, when the box cover is completely opened, the first contact piece on the surface of the connecting column is in contact with the second contact piece on the groove wall surface of the L-shaped sliding groove, so that the lamp strip is started, thereby facilitating the user to see the instrument clearly in a dim environment, and thus facilitating the user to complete the debugging and correction work.

[0023] Preferably, the top surface of the box cover is provided with a handle groove; a carrying handle is rotationally connected with the side wall of the handle groove; a protrusion is fixed on the surface of one side of the box at a position corresponding to the carrying handle; during operation, when the user needs to carry the box, the carrying handle can be rotated to buckle the protrusion, so that the box cover and the box are locked, when the user needs to open the box cover, the carrying handle can be rotated again to unlock the protrusion, and the user can pull the box cover more conveniently through the carrying handle, and the pulled box cover can be attached to one side of the box, so that the top of the taking opening is kept open and is not blocked by the box cover, thereby facilitating the user to operate the debugging and correction.

[0024] Preferably, a pair of symmetrical pull rings are fixed on the surfaces of the two sides of the box; a buckle ring is fixed on the bottom of the shoulder strap; during operation, the user can cross the shoulder straps and buckle the shoulder straps on the buckle ring through the buckle ring at the bottom of the shoulder strap, so that the user can better carry the box, and the box can be more stable when carried in front of the chest.

[0025] The beneficial effects of the present application are as follows:

[0026] 1. The vehicle-mounted gas monitoring system and debugging correction method thereof, through the multiple sensors in the information input module; the gas components in the air are detected, and the detected data information is sent to the information transceiver module, and the information transceiver module packs the data information sent by the information input module and sends it to the central processor module; the central processor module processes the data; and sends it to the information receiving module; and then through the information receiving module and respectively sent to the alarm module and the control module, the electronic ignition unit and the power-off control unit are started, and the power-off and vehicle and ignition are quickly completed.

[0027] 2. The vehicle-mounted gas monitoring system and debugging correction method thereof, through the characteristics of being installable on various carriers, more restricted carriers can continue to be used, and through regular debugging correction, the vehicle-mounted gas monitoring system can always remain sensitive and protect the health of workers. BRIEF DESCRIPTION OF DRAWINGS

[0028] The application will be further described below with reference to the drawings.

[0029] Figure 1 is the system flowchart of the application;

[0030] Figure 2 is the perspective view of the application;

[0031] Figure 3 is the sectional view of the application;

[0032] Figure 4 is the sectional view of the fixed seat in the application;

[0033] Figure 5 is the structural schematic view of the connecting pipe in the application;

[0034] Figure 6 is the structural schematic view of the lamp strip in the application;

[0035] Figure 7 is the structural schematic view of the buckle in the application;

[0036] In the figure: 1, box body; 2, shoulder strap; 3, air bottle; 4, calibration gas bottle; 5, air guide pipe; 6, connecting pipe; 7, switch valve; 8, magnet hook; 9, magnet block; 10, corrugated expansion pipe; 11, ring magnet; 12, taking opening; 13, L-shaped sliding groove; 14, connecting column; 15, box cover; 16, lamp strip; 17, first contact sheet; 18, second contact sheet; 19, handle groove; 20, lifting handle; 21, protrusion; 22, pull ring; 23, buckle; 24, spring; 25, fixed seat; 26, plug-in slot; 27, groove; 28, baffle; 29, flow guide groove; 30, buzzer; 31, first starting sheet; 32, film; 33, second starting sheet. Detailed Implementation

[0037] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0038] Example 1

[0039] like Figure 1 As shown in the figure, an embodiment of the present invention provides a vehicle-mounted gas monitoring system, which includes a processor module, an information transceiver module, an information input module, an alarm module, and a control module.

[0040] The information input module uses multiple internal sensors to detect the gas composition in the air and sends the detected data to the information transceiver module.

[0041] The information transceiver module packages the data information sent by the information input module and sends it centrally to the central processing unit module; then it receives the information sent by the central processing unit module and sends it to the alarm module and the control module respectively.

[0042] After receiving data from the information transceiver module, the central processing unit module analyzes and processes the data and determines whether to send an alarm message. If it determines that an alarm message needs to be sent, the central processing unit module will send the alarm message to the information transceiver module.

[0043] Upon receiving an alarm message from the information transceiver module, the control module will immediately respond, thereby controlling its various internal mechanisms to cease operation immediately.

[0044] Upon receiving the alarm information sent by the information transceiver module, the alarm module will immediately respond and control the alarm bell to emit a loud sound, while simultaneously controlling the broadcasting device to issue an evacuation alarm.

[0045] The control module includes an electronic shutdown unit and a power-off control unit. After receiving an alarm message, the control module will send an electrical signal to control the motor shutdown unit to shut down the motor, and at the same time, it will send an electrical signal to the power-off control unit to control the power-off of various electrical devices.

[0046] A debugging and calibration method for a vehicle-mounted gas monitoring device, applicable to the aforementioned information input module, comprising:

[0047] S1: First, check if the methane sensor is intact and clean it. Then connect the methane sensor to the control station and preheat it for 10 minutes. After that, adjust the instrument zero point in fresh air and control the zero value range within 0.00 to 0.03% CH4.

[0048] S2: Then use the check device, to the gas chamber into 2.00% CH4 standard gas, adjust the methane sensor precision, make its display value and the calibrator concentration value consistent, repeatedly adjust, until accurate, in the basic error determination process, can not be adjusted again;

[0049] S3: Finally, the basic error determination, according to the flow rate of the calibration time to the gas chamber into 0.5%, 1.0%, 3.0% CH4 calibration gas 90s, each gas is passed in three times, calculate the average value, with the average value and the standard value to calculate the basic error of each point, at the same time in the process of each ventilation, need to observe the measurement alarm point, power off point, power on point and sound, light alarm situation, the above content can also be measured separately.

[0050] For example Figures 2 to 4As shown in the figure, wherein the check device comprises a box 1, a pair of symmetrically arranged shoulder straps 2 are fixed on the two side surfaces of the box 1, the box 1 is provided with an air bottle 3 and a calibration gas bottle 4, the air bottle 3 and the calibration gas bottle 4 are both connected with air pipes 5, a connecting pipe 6 is arranged in the box 1, the two air pipes 5 are connected with the connecting pipe 6, a fixed seat 25 is fixed on the inner bottom surface of the box 1, a plug-in slot 26 is formed on the top surface of the fixed seat 25, the connecting pipe 6 is slidably connected with the plug-in slot 26 and is clamped with the fixed seat 25, a pair of symmetrically arranged grooves 27 are formed in the fixed seat 25, a baffle 28 is slidably connected in the groove 27, springs 24 are fixed between the baffle 28 and the groove bottom of the groove 27, a pair of flow guide grooves 29 are formed on the two sides of the plug-in slot 26, a buzzer 30 is fixed on the top of the plug-in slot 26, a first starting piece 31 is fixed on the top of the buzzer 30, a film 32 is fixed on the groove wall of the plug-in slot 26 at the top of the buzzer 30, a second starting piece 33 is fixed on the bottom surface of the film 32 at the corresponding position of the first starting piece 31, when working, the vehicle-mounted gas monitoring system needs to be debugged and corrected regularly to be normally used, in order to facilitate the user to debug and correct regularly, and to facilitate the user to debug and correct the information input module of the vehicle-mounted gas system, firstly, the user takes out the connecting pipe 6 in the box 1 and places the connecting pipe 6 in the receiving range of the methane sensor, then opens the valves of the air bottle 3 and the calibration gas bottle 4 respectively through the debugging and correcting method of the vehicle-mounted gas monitoring device, and the gas is discharged, at the same time, the shoulder straps 2 can also facilitate the user to carry, and facilitate the user to debug and correct the vehicle-mounted gas monitoring system on multiple vehicles, when the user uses it, the connecting pipe 6 can be inserted into the plug-in slot 26, the connecting pipe 6 extrudes the baffle 28, the baffle 28 moves towards the groove bottom of the groove 27, the spring 24 is extruded, finally, the pipe opening of the connecting pipe 6 contacts with the film 32, the connecting pipe 6 is closed, to prevent the user from forgetting to close the switch valve 7 after using the connecting pipe 6, which causes the gas to leak and causes safety hazards, at the same time, the leaked gas also extrudes the film 32, the film 32 drives the first starting piece 31 and the second starting piece 33 to contact, to start the buzzer 30 and emit an alarm sound to remind the user to close the switch valve 7, when the user pulls out the connecting pipe 6, the baffle 28 closes the plug-in slot 26 under the action of the spring 24, and then the residual gas in the plug-in slot 26 is sprayed to the outside through the flow guide grooves 29, to prevent the residual gas from being directly sprayed from the slot opening of the plug-in slot 26 to the user and causing damage to the respiratory tract of the user.

[0051] As Figure 5As shown in the figure, the connecting pipe 6 is provided with a switch valve 7 on one side surface; a pair of symmetrical magnet hooks 8 are hinged on both sides of the connecting pipe 6; a magnet block 9 is embedded on the side surface of the connecting pipe 6 away from the switch valve 7; during operation, the user can rotate the magnet hooks 8 on both sides of the connecting pipe 6 counterclockwise, and hang the magnet hooks 8 on the steel frame structure of the carrier, and fix the connecting pipe 6 near the methane sensor through the adsorption of the magnet hooks 8 and the steel frame structure, so as to facilitate the user to control the switch valve 7 with both hands, and then accurately adjust the air outlet of the air bottle 3 and the calibration gas bottle 4, so that the user's calibration is more accurate.

[0052] As shown in the figure, Figure 5 , the connecting pipe 6 is provided with a switch valve 7 on one side surface; a pair of symmetrical magnet hooks 8 are hinged on both sides of the connecting pipe 6; a magnet block 9 is embedded on the side surface of the connecting pipe 6 away from the switch valve 7; during operation, the user can rotate the magnet hooks 8 on both sides of the connecting pipe 6 counterclockwise, and hang the magnet hooks 8 on the steel frame structure of the carrier, and fix the connecting pipe 6 near the methane sensor through the adsorption of the magnet hooks 8 and the steel frame structure, so as to facilitate the user to control the switch valve 7 with both hands, and then accurately adjust the air outlet of the air bottle 3 and the calibration gas bottle 4, so that the user's calibration is more accurate.

[0053] As shown in the figure, Figures 1 to 2 , the connecting pipe 6 is provided with a switch valve 7 on one side surface; a pair of symmetrical magnet hooks 8 are hinged on both sides of the connecting pipe 6; a magnet block 9 is embedded on the side surface of the connecting pipe 6 away from the switch valve 7; during operation, the user can rotate the magnet hooks 8 on both sides of the connecting pipe 6 counterclockwise, and hang the magnet hooks 8 on the steel frame structure of the carrier, and fix the connecting pipe 6 near the methane sensor through the adsorption of the magnet hooks 8 and the steel frame structure, so as to facilitate the user to control the switch valve 7 with both hands, and then accurately adjust the air outlet of the air bottle 3 and the calibration gas bottle 4, so that the user's calibration is more accurate.

[0054] As shown in the figure, Figure 2 , Figure 3 and Figure 6 , the connecting pipe 6 is provided with a switch valve 7 on one side surface; a pair of symmetrical magnet hooks 8 are hinged on both sides of the connecting pipe 6; a magnet block 9 is embedded on the side surface of the connecting pipe 6 away from the switch valve 7; during operation, the user can rotate the magnet hooks 8 on both sides of the connecting pipe 6 counterclockwise, and hang the magnet hooks 8 on the steel frame structure of the carrier, and fix the connecting pipe 6 near the methane sensor through the adsorption of the magnet hooks 8 and the steel frame structure, so as to facilitate the user to control the switch valve 7 with both hands, and then accurately adjust the air outlet of the air bottle 3 and the calibration gas bottle 4, so that the user's calibration is more accurate.

[0055] As shown in the figure, Figure 2 and Figure 6As shown in the figure, the top surface of the box cover 15 is provided with a handle slot 19; the side wall of the handle slot 19 is rotationally connected with a carrying handle 20; the side surface of the box body 1 is fixedly connected with a protrusion 21 at the corresponding position of the carrying handle 20; during operation, when the user needs to carry the box body 1 on the back, the carrying handle 20 can be rotated to buckle the protrusion 21, so that the box cover 15 is locked with the box body 1; when the user needs to open the box cover 15, the carrying handle 20 can be rotated again to be unlocked with the protrusion 21, and at the same time, the user can pull the box cover 15 more conveniently through the carrying handle 20, and the pulled box cover 15 can be attached to one side of the box body 1, so that the top of the taking opening 12 remains open and is not blocked by the box cover 15, thereby facilitating the debugging and correction operation of the user.

[0056] Example two

[0057] As Figure 7 shown in the figure, the two sides of the box body 1 are fixedly connected with a pair of symmetrically arranged pull rings 22; the bottom of the shoulder strap 2 is fixedly connected with a buckle ring 23; during operation, the user can cross the shoulder strap 2 on the buckle ring 23 through the buckle ring 23 at the bottom of the shoulder strap 2, so that the user can better carry the box body 1 on the back, and at the same time, the box body 1 can be more stable when carried in front of the chest.

[0058] During operation, the vehicle-mounted gas monitoring system needs to be debugged and corrected regularly to be normally used, in order to facilitate the debugging and correction of the user, and facilitate the user to debug and correct the information input module of the vehicle-mounted gas system, first, the user takes out the connecting pipe 6 in the box body 1 and places the connecting pipe 6 in the receiving range of the methane sensor, then opens the valves of the air bottle 3 and the calibration gas bottle 4 respectively through the debugging and correction method of the vehicle-mounted gas monitoring device, and the gas is discharged, and at the same time, the shoulder strap 2 can also facilitate the user to carry, so that the user can debug and correct the vehicle-mounted gas monitoring system on multiple vehicles, and when the user finishes using, the connecting pipe 6 can be inserted into the insertion slot 26, the connecting pipe 6 will extrude the baffle 28, so that the baffle 28 moves towards the groove bottom of the recess 27, and at the same time, the spring 24 is extruded, finally the pipe opening of the connecting pipe 6 is in contact with the film 32, and the connecting pipe 6 is closed, so as to prevent the user from forgetting to close the switch valve 7 after using the connecting pipe 6, which causes the gas to leak and causes safety hazards, and at the same time, the leaked gas will extrude the film 32, so that the film 32 drives the first starting piece 31 and the second starting piece 33 to contact, thereby starting the buzzer 30 to issue a warning sound to remind the user to close the switch valve 7, and when the user pulls out the connecting pipe 6, the baffle 28 closes the insertion slot 26 under the action of the spring 24, so that the residual gas in the insertion slot 26 is sprayed to the outside through the flow guide groove 29, preventing the residual gas from being directly sprayed from the insertion slot 26 to the user and causing damage to the respiratory tract of the user.

[0059] The user can rotate the magnetic hooks 8 on both sides of the connecting pipe 6 counterclockwise, and hang the magnetic hooks 8 on the steel structure of the carrier, and fix the connecting pipe 6 near the methane sensor through the adsorption of the magnetic hooks 8 and the steel structure, so as to facilitate the user to control the on-off valve 7 with both hands, and then accurately adjust the air outlet of the air bottle 3 and the calibration gas bottle 4, so that the user's calibration is more accurate.

[0060] In order to make the gas discharged from the connecting pipe 6 better introduced into the gas chamber of the methane sensor, the user can stretch the corrugated expansion pipe 10, and fix the corrugated expansion pipe 10 at the gas inlet of the gas chamber of the methane sensor through the annular magnet 11, so that the gas in the connecting pipe 6 is better introduced into the gas chamber of the methane sensor, and the leakage of the gas discharged from the connecting pipe 6 is prevented, causing inaccurate debugging and correction.

[0061] The user can pull the box cover 15, when the box cover 15 is pulled to the slot wall of the L-shaped sliding groove 13 near the top, then rotate the box cover 15 clockwise, and then pull the box cover 15 downward, so that the taking opening 12 is completely opened, facilitating the user to operate the air bottle 3 and the calibration gas bottle 4 in the box body 1.

[0062] When the box cover 15 is completely opened, the first contact piece 17 on the surface of the connecting column 14 contacts the second contact piece 18 on the surface of the slot wall of the L-shaped sliding groove 13, thereby starting the lamp strip 16, facilitating the user to see the instrument clearly in a dim environment, thereby facilitating the user to complete the debugging and correction work.

[0063] When the user needs to carry the box body 1, the handle 20 can be rotated to make the handle 20 buckle the protrusion 21, so that the box cover 15 and the box body 1 are locked, and when the user needs to open the box cover 15, the handle 20 can be rotated again to make the handle 20 and the protrusion 21 unlock, and at the same time the user can pull the box cover 15 more conveniently through the handle 20.

[0064] The user can cross the shoulder straps 2 on the buckle 23 at the bottom of the shoulder straps 2, so that the user can better carry the box body 1, and at the same time the box body 1 can be more stable when carried in front of the chest.

[0065] The above front, back, left, right, up and down are based on the drawings in the specification Figure 2 as the standard, the side facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0066] In the description of the application, it is to be understood that the terms "center", "longitudinal", "transverse", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings and are used only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the application.

[0067] The basic principles, main features and advantages of the application are shown and described above. Those skilled in the art should understand that the application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the application. Without departing from the spirit and scope of the application, various changes and improvements can be made to the application, and these changes and improvements all fall within the scope of the application. The scope of protection of the application is defined by the appended claims and their equivalents.

Claims

1. A debugging correction method of a vehicle-mounted gas monitoring device, comprising a central processor module, an information transceiver module, an information input module, an alarm module, and a control module; The information input module detects the gas components in the air through various sensors inside it and sends the detected data information to the information transceiver module; The information transceiver module packages the data information sent by the information input module and sends it to the central processor module, then receives the information sent by the central processor module and sends it to the alarm module and the control module respectively; The central processor module analyzes the data information after receiving the data information sent by the information transceiving module, and judges whether to send an alarm information; If it is determined that alarm information needs to be sent, the central processor module will send the alarm information to the information transceiver module; After receiving the alarm information sent by the information transceiver module, the control module will immediately respond to control the various mechanisms inside it to stop working urgently; After receiving the alarm information sent by the information transceiver module, the alarm module will immediately respond and control the alarm bell to emit a loud sound, and at the same time control the sound broadcast device to issue an evacuation alarm; The control module includes an electronic ignition unit and a power-off control unit; after receiving the alarm information, the control module will send an electrical signal to the electronic ignition unit to shut down, and at the same time send an electrical signal to the power-off control unit to control various electrical equipment to power off; The debugging correction method is applicable to the information input module, and the debugging correction method comprises: S1: First, check whether the appearance of the methane sensor is complete, and clean it, then connect the methane sensor to the control center and power on for preheating for 10 minutes; Then the instrument zero point needs to be adjusted in fresh air, and the zero value range needs to be controlled within 0.00-0.03% CH4; S2: Then use the calibration device to input 2.00% CH4 standard gas into the gas chamber, adjust the accuracy of the methane sensor, make the display value consistent with the concentration value of the calibrator, and repeat the adjustment until it is accurate. During the basic error measurement process, it cannot be adjusted again; S3: Finally, perform basic error measurement, input 0.5%, 1.0%, and 3.0% CH4 calibration gas into the gas chamber for 90s according to the flow rate at the time of calibration, input each gas three times, calculate the average value, and calculate the basic error of each point using the average value and the standard value. At the same time, during each gas input process, the measurement alarm point, power-off point, power-on point, and sound and light alarm conditions need to be observed. The check device includes a box (1), a pair of symmetrically arranged shoulder straps (2) fixed on the two side surfaces of the box (1), an air bottle (3) and a calibration gas bottle (4) arranged on the box (1), air pipes (5) connected with the air bottle (3) and the calibration gas bottle (4), a connecting pipe (6) arranged in the box (1), the two air pipes (5) connected with the connecting pipe (6), a fixed seat (25) fixed on the bottom surface of the box (1), a plug-in slot (26) arranged on the top surface of the fixed seat (25), the connecting pipe (6) slidably connected with the plug-in slot (26) and clamped with the fixed seat (25), a pair of symmetrically arranged grooves (27) arranged in the fixed seat (25), a baffle (28) slidably connected in the groove (27), springs (24) fixed between the baffle (28) and the groove bottom of the groove (27), a pair of flow guide grooves (29) arranged on the two sides of the plug-in slot (26), a buzzer (30) fixed on the groove bottom of the plug-in slot (26), a first starting piece (31) fixed on the top of the buzzer (30), a film (32) fixed on the groove wall of the plug-in slot (26) and on the top of the buzzer (30), and a second starting piece (33) fixed on the bottom surface of the film (32) and corresponding to the first starting piece (31).

2. The method according to claim 1, wherein: A switch valve (7) is mounted on one side surface of the connecting pipe (6), a pair of symmetrically arranged magnet hooks (8) are hingedly arranged on the two sides of the connecting pipe (6), and a magnet block (9) is embedded on the side surface of the connecting pipe (6) away from the switch valve (7).

3. The method according to claim 2, wherein: A corrugated expansion pipe (10) is fixed on one end of the connecting pipe (6) away from the air pipe (5), and a ring magnet (11) is fixed on the end of the corrugated expansion pipe (10) away from the connecting pipe (6).

4. The method according to claim 3, wherein the method further comprises the step of: 4-1) setting the value of the parameter of the gas monitoring device to the value of the parameter of the gas monitoring device in the vehicle. A taking opening (12) is arranged on the top of the box (1), a pair of symmetrically arranged L-shaped sliding grooves (13) are arranged on the two side surfaces of the box (1), a connecting column (14) is slidably connected in the L-shaped sliding groove (13), a box cover (15) is arranged at the position of the taking opening (12), and the box cover (15) is rotationally connected with the connecting column (14).

5. The method according to claim 4, wherein: A lamp strip (16) is fixed on the bottom surface of the box cover (15), a first contact piece (17) is fixed on the groove wall surface of the L-shaped sliding groove (13) close to the bottom of the box (1), and a second contact piece (18) is fixed on the surface of the connecting column (14).

6. The method according to claim 5, wherein the method further comprises the step of: 6-1) setting the value of the parameter of the gas monitoring device to the value of the parameter of the gas monitoring device in the vehicle. A handle groove (19) is arranged on the top surface of the box cover (15), a carrying handle (20) is rotationally connected on the side wall of the handle groove (19), and a protrusion (21) is fixed on the side surface of the box (1) and corresponding to the carrying handle (20).

7. The method according to claim 6, wherein the method further comprises the step of: 7.

1. checking the gas concentration of the gas sensor by using the gas sensor and the gas sensor calibration device. A pair of symmetrically arranged pull rings (22) are fixed on the two side surfaces of the box (1), and a buckle ring (23) is fixed on the position close to the bottom of the shoulder strap (2).

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