阅读说明：本技术 三合一传感器气体浓度检测方法以及三合一传感器 (Three-in-one sensor gas concentration detection method and three-in-one sensor ) 是由 张伟 于 2019-08-15 设计创作，主要内容包括：本发明涉及三合一传感器气体浓度检测方法,包括：S1、分别获取第一气体检测信号、第二气体检测信号和第三气体检测信号；S2、基于所述第一气体检测信号、所述第二气体检测信号和所述第三气体检测信号分别解析出所述第一气体浓度、第二气体浓度和第三气体浓度的高位、低位和小数点位数值；S3、分别基于所述第一气体浓度、第二气体浓度和第三气体浓度的高位、低位和小数点位数值计算所述第一气体浓度、所述第二气体浓度和所述第三气体浓度。本发明还涉及一种三合一传感器。实施本发明的三合一传感器气体浓度检测方法以及三合一传感器,能够实现井下现场的各种气体成分的精确监测。(the invention relates to a gas concentration detection method of a three-in-one sensor, which comprises the following steps: s1, respectively acquiring a first gas detection signal, a second gas detection signal and a third gas detection signal; s2, respectively analyzing high-order, low-order and decimal point position values of the first gas concentration, the second gas concentration and the third gas concentration based on the first gas detection signal, the second gas detection signal and the third gas detection signal; s3, calculating the first gas concentration, the second gas concentration and the third gas concentration respectively based on the high position, low position and decimal point values of the first gas concentration, the second gas concentration and the third gas concentration. The invention also relates to a three-in-one sensor. The three-in-one sensor gas concentration detection method and the three-in-one sensor can realize accurate monitoring of various gas components in the underground site.)

1. A three-in-one sensor gas concentration detection method is characterized by comprising the following steps:

S1, respectively acquiring a first gas detection signal, a second gas detection signal and a third gas detection signal;

S2, respectively analyzing high-order, low-order and decimal point position values of the first gas concentration, the second gas concentration and the third gas concentration based on the first gas detection signal, the second gas detection signal and the third gas detection signal;

s3, calculating the first gas concentration, the second gas concentration and the third gas concentration respectively based on the high position, low position and decimal point values of the first gas concentration, the second gas concentration and the third gas concentration.

2. The method for detecting gas concentration of three-in-one sensor as claimed in claim 1, wherein the step S2 further comprises:

S21, reading the first gas detection signal, the second gas detection signal and the third gas detection signal cyclically through an IC2 communication protocol;

S22, checking the first gas detection signal, the second gas detection signal and the third gas detection signal according to check bytes.

3. the three-in-one sensor gas concentration detection method according to claim 2, wherein the step S22 further comprises:

s221, determining whether the first gas detection signal, the second gas detection signal, and the third gas detection signal are valid according to first byte data of the first gas detection signal, the second gas detection signal, and the third gas detection signal;

S222, determining whether the read addresses of the first gas detection signal, the second gas detection signal, and the third gas detection signal are normal according to second byte data of the first gas detection signal, the second gas detection signal, and the third gas detection signal.

4. The three-in-one sensor gas concentration detection method according to claim 3, wherein the step S22 further comprises:

S223, generating an alarm signal based on whether the first gas detection signal, the second gas detection signal and the third gas detection signal are valid and/or whether a read address is normal.

5. The three-in-one sensor gas concentration detection method according to claim 2, wherein the step S3 further comprises:

S31, converting the third byte data and the fourth byte data of the first gas detection signal, the second gas detection signal and the third gas detection signal into first gas concentration high data, first gas concentration low data, second gas concentration high data, second gas concentration low data, third gas concentration high data and third gas concentration low data, respectively;

S32, converting the fifth byte data of the first gas detection signal, the second gas detection signal and the third gas detection signal into first gas concentration decimal point data, second gas concentration decimal point data and third gas concentration decimal point data, respectively;

s33, calculating the first gas concentration based on the first gas concentration high data, the first gas concentration low data and the first gas concentration decimal point data, calculating the second gas concentration based on the second gas concentration high data, the second gas concentration low data and the second gas concentration decimal point data, and calculating the third gas concentration based on the third gas concentration high data, the third gas concentration low data and the third gas concentration decimal point data.

6. the method for detecting the gas concentration of a three-in-one sensor according to claim 5, wherein in the step S33:

The first gas concentration (the first gas concentration higher data 256+ the first gas concentration lower data) 5/(10)^N1) Wherein N1 is the first gas concentration decimal point data;

the second gas concentration (256 + 256 higher data of the second gas concentration + lower data of the second gas concentration)/(10)^N2) Wherein N2 is the second gas concentration decimal point data;

the third gas concentration (the third gas concentration higher data 256+ the third gas concentration lower data)/(10)^N3) Wherein N3 is the third gas concentration decimal point data;

Wherein the first gas is methane, the second gas is carbon monoxide, and the third gas is oxygen.

7. The method for detecting the gas concentration of a three-in-one sensor according to any one of claims 1 to 6, further comprising:

S41, displaying the first gas concentration, the second gas concentration and the third gas concentration on a display module of the three-in-one sensor;

S42, transmitting the first gas concentration, the second gas concentration and the third gas concentration to a network platform;

s43, sending the first gas concentration, the second gas concentration and the third gas concentration to a whole vehicle comprehensive controller of the explosion-proof mining electric vehicle through a handshake protocol.

8. the three-in-one sensor gas concentration detection method according to claim 7, wherein the step S43 further comprises:

s431, sending handshake data to the integrated vehicle controller after the three-in-one sensor is electrified;

S432, after receiving the handshake data, the vehicle integrated controller sends a handshake command to the three-in-one sensor;

S433, after receiving the handshake command, the three-in-one sensor stops sending handshake data to indicate that the handshake is successful, and sends the first gas concentration, the second gas concentration and the third gas concentration to the whole vehicle integrated controller; and/or

s44, comparing the first gas concentration, the second gas concentration and the third gas concentration with a standard first gas concentration, a standard second gas concentration and a standard third gas concentration, and generating an alarm signal based on the comparison result.

9. A three-in-one sensor, its characterized in that, including trinity probe integrated module and control module, trinity probe integrated module includes first sensor probe, second sensor probe and third sensor probe and probe signal processing circuit, control module includes microprocessor and storage is in computer program on the microprocessor, microprocessor with probe signal processing circuit communication connection, the program realizes realizing according to any one of claims 1-8 the gaseous concentration detection method of trinity sensor when being executed by the microprocessor.

10. the three-in-one sensor according to claim 9, further comprising an audible and visual alarm module, a display module, a storage module and a power module, each communicatively coupled to the microprocessor.

Technical Field

The invention relates to the field of gas detection, in particular to a gas concentration detection method of a three-in-one sensor and the three-in-one sensor.

background

The collection of various information of the underground site of the coal mine is very important for safe production, and especially the environmental parameters such as the concentration of methane, carbon monoxide and oxygen are closely related to safety. With the increasing importance on the coal mine production safety, various gas sensors are widely used for collecting the gas concentration in the underground site of the coal mine. However, the gas sensor of the prior art usually adopts a single probe, so that the mixed gas cannot be detected and identified, and the gas concentration can be displayed.

Disclosure of Invention

the invention aims to solve the technical problem of providing a gas concentration detection method of a three-in-one sensor and the three-in-one sensor, which can realize accurate monitoring of various gas components in a downhole site and overcome the defects of the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: a three-in-one sensor gas concentration detection method is constructed, and comprises the following steps:

S1, respectively acquiring a first gas detection signal, a second gas detection signal and a third gas detection signal;

S2, respectively analyzing high-order, low-order and decimal point position values of the first gas concentration, the second gas concentration and the third gas concentration based on the first gas detection signal, the second gas detection signal and the third gas detection signal;

S3, calculating the first gas concentration, the second gas concentration and the third gas concentration respectively based on the high position, low position and decimal point values of the first gas concentration, the second gas concentration and the third gas concentration.

In the three-in-one sensor gas concentration detection method of the present invention, the step S2 further includes:

S21, reading the first gas detection signal, the second gas detection signal and the third gas detection signal cyclically through an IC2 communication protocol;

s22, checking the first gas detection signal, the second gas detection signal and the third gas detection signal according to check bytes.

in the three-in-one sensor gas concentration detection method of the present invention, the step S22 further includes:

S221, determining whether the first gas detection signal, the second gas detection signal, and the third gas detection signal are valid according to first byte data of the first gas detection signal, the second gas detection signal, and the third gas detection signal;

S222, determining whether the read addresses of the first gas detection signal, the second gas detection signal, and the third gas detection signal are normal according to second byte data of the first gas detection signal, the second gas detection signal, and the third gas detection signal.

In the three-in-one sensor gas concentration detection method of the present invention, the step S22 further includes:

S223, generating an alarm signal based on whether the first gas detection signal, the second gas detection signal and the third gas detection signal are valid and/or whether a read address is normal.

in the three-in-one sensor gas concentration detection method of the present invention, the step S3 further includes:

s31, converting the third byte data and the fourth byte data of the first gas detection signal, the second gas detection signal and the third gas detection signal into first gas concentration high data, first gas concentration low data, second gas concentration high data, second gas concentration low data, third gas concentration high data and third gas concentration low data, respectively;

S32, converting the fifth byte data of the first gas detection signal, the second gas detection signal and the third gas detection signal into first gas concentration decimal point data, second gas concentration decimal point data and third gas concentration decimal point data, respectively;

s33, calculating the first gas concentration based on the first gas concentration high data, the first gas concentration low data and the first gas concentration decimal point data, calculating the second gas concentration based on the second gas concentration high data, the second gas concentration low data and the second gas concentration decimal point data, and calculating the third gas concentration based on the third gas concentration high data, the third gas concentration low data and the third gas concentration decimal point data.

In the three-in-one sensor gas concentration detection method of the present invention, in the step S33:

the first gas concentration (the first gas concentration higher data 256+ the first gas concentration lower data) 5/(10)^N1) Wherein N1 is the first gas concentration decimal point data;

The second gas concentration (256 + 256 higher data of the second gas concentration + lower data of the second gas concentration)/(10)^N2) Wherein N2 is the second gas concentration decimal point data;

The third gas concentration (the third gas concentration higher data 256+ the third gas concentration lower data)/(10)^N3) Wherein N3 is the third gas concentration decimal point data;

wherein the first gas is methane, the second gas is carbon monoxide, and the third gas is oxygen.

The gas concentration detection method of the three-in-one sensor further comprises the following steps:

S41, displaying the first gas concentration, the second gas concentration and the third gas concentration on a display module of the three-in-one sensor;

S42, transmitting the first gas concentration, the second gas concentration and the third gas concentration to a network platform;

S43, sending the first gas concentration, the second gas concentration and the third gas concentration to a whole vehicle comprehensive controller of the explosion-proof mining electric vehicle through a handshake protocol; and/or

S44, comparing the first gas concentration, the second gas concentration and the third gas concentration with a standard first gas concentration, a standard second gas concentration and a standard third gas concentration, and generating an alarm signal based on the comparison result.

In the three-in-one sensor gas concentration detection method of the present invention, the step S43 further includes:

S431, sending handshake data to the integrated vehicle controller after the three-in-one sensor is electrified;

S432, after receiving the handshake data, the vehicle integrated controller sends a handshake command to the three-in-one sensor;

And S433, the three-in-one sensor receives the handshake command and then stops sending handshake data to indicate that the handshake is successful and sends the first gas concentration, the second gas concentration and the third gas concentration to the whole vehicle integrated controller.

Another technical solution adopted by the present invention to solve the technical problem is to construct a three-in-one sensor, which includes a three-in-one probe integration module and a control module, wherein the three-in-one probe integration module includes a first sensor probe, a second sensor probe, a third sensor probe and a probe signal processing circuit, the control module includes a microprocessor and a computer program stored on the microprocessor, the microprocessor is in communication connection with the probe signal processing circuit, and the program is executed by the microprocessor to implement the gas concentration detection method of the three-in-one sensor according to any one of claims 1 to 8.

The three-in-one sensor further comprises an audible and visual alarm module, a display module, a storage module and a power supply module which are respectively in communication connection with the microprocessor.

the three-in-one sensor gas concentration detection method and the three-in-one sensor can realize accurate monitoring of various gas components in the underground site. Further, through cyclic reading and data conversion verification, more accurate concentration calculation can be carried out on various gas components. Still further, communicate with vehicle control unit through the agreement of shaking hands, can carry out the transmission of data better.

drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a flow chart of a first embodiment of a three-in-one sensor gas concentration detection method of the present invention;

FIG. 2 is a functional block diagram of a first embodiment of a triad sensor of the present invention;

FIG. 3 is a functional block diagram of a second embodiment of a triad sensor of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

FIG. 1 is a flow chart of a first embodiment of a three-in-one sensor gas concentration detection method of the present invention. As shown in fig. 1, in step S1, a first gas detection signal, a second gas detection signal, and a third gas detection signal are acquired, respectively. In a preferred embodiment of the present invention, a three-in-one probe integrated module may be used for the detection. For example, in one preferred embodiment of the present invention, the triad probe integrated module may include an oxygen probe, a methane probe and a carbon monoxide probe, and probe signal processing circuitry (e.g., PCB board). The oxygen probe, the methane probe and the carbon monoxide probe are respectively connected to the PCB. The oxygen probe, the methane probe and the carbon monoxide probe can adopt imported high-precision industrial sensor probes, and can comprise a sensor probe gas chamber and a probe sensitive element, when the device works, three gases of oxygen, methane and carbon monoxide in a detected environment enter the sensor probe gas chamber in a diffusion mode to react with the probe sensitive element and convert the three gases into corresponding standard electric signals of the three gases, namely a methane gas detection signal, a carbon monoxide gas detection signal and an oxygen gas detection signal, and the data can be output through TTL serial ports.

In step S2, high, low, and decimal point values of the first, second, and third gas concentrations are respectively resolved based on the first, second, and third gas detection signals.

in a preferred embodiment of the present invention, the methane gas detection signal, the carbon monoxide gas detection signal, and the oxygen gas detection signal may be subjected to preprocessing operations such as filtering and amplification, and then subjected to a/D conversion, and then transmitted to a control module, for example, an STM32F107 single chip microcomputer for data processing and analysis, and stored by an EEPR OM storage module.

in a preferred embodiment of the present invention, the step S2 further includes: s21, reading the first gas detection signal, the second gas detection signal and the third gas detection signal cyclically through an IC2 communication protocol; s22, checking the first gas detection signal, the second gas detection signal and the third gas detection signal according to check bytes.

In a further preferred embodiment of the invention, standard IC2 timing (100 KHz-400 KHz) may be used, with MSBs being transmitted first. In the present embodiment, the I2C read address of the first gas detection signal, i.e., the methane gas detection signal, is 32; the I2C read address of the second gas detection signal, i.e., the carbon monoxide gas detection signal, is 34; the third gas detection signal, i.e., the oxygen gas detection signal, has an I2C read address of 36. For each gas, 10 bytes of data are read each time, read cyclically, approximately once per second, with the data read being IICDATAROM [0], IICDATAROM [1], … … IICDATAROM [9], respectively. It will be appreciated by those skilled in the art that in other preferred embodiments of the present invention, other types of gases may be selected for detection, and the first gas detection signal, the second gas detection signal, and the third gas detection signal may be interchanged with the read addresses for methane gas, carbon monoxide gas, and oxygen gas. In a further preferred embodiment of the invention, data from the I2C read addresses of methane, carbon monoxide and oxygen are read using a standard IC2 timing cycle, as previously described, to obtain 10 bytes of data for each of the three gases. If the data cannot be read or the reading process of I2C reports errors, the I2C is set to read the error flag byte, the display is adopted to display error information, and audible and visual alarm is carried out.

in a further preferred embodiment of the present invention, after the data read by I2C is normal, it is determined whether the first byte of the data read each time is equal to 0xb1, i.e. IICDATAROM [0] is equal to 0xb1, if IICDATAROM [0] is not equal to 0xb1, it indicates that the gas concentration is wrong or the data is invalid for I2C read sensor, the invalid data flag byte is set, the error information is displayed, and an audible and visual alarm is performed. When the first byte of each gas detection signal read is equal to 0xb1, judging whether the second byte read is equal to the I2C read address of the gas, namely judging whether IICDATAROM [1] of the methane gas detection signal is equal to 32, IICDATAROM [1] of the carbon monoxide gas detection signal is equal to 34, IICDATAROM [1] of the oxygen gas detection signal is equal to 36, if not, setting the invalid data flag byte of the corresponding gas, displaying error information by a display and carrying out audible and visual alarm.

in step S3, the first gas concentration, the second gas concentration, and the third gas concentration are calculated based on the upper, lower, and decimal point values of the first gas concentration, the second gas concentration, and the third gas concentration, respectively.

in a preferred embodiment of the present invention, the step S3 further includes: s31, converting the third byte data and the fourth byte data of the first gas detection signal, the second gas detection signal and the third gas detection signal into first gas concentration high data, first gas concentration low data, second gas concentration high data, second gas concentration low data, third gas concentration high data and third gas concentration low data, respectively; s32, converting the fifth byte data of the first gas detection signal, the second gas detection signal and the third gas detection signal into first gas concentration decimal point data, second gas concentration decimal point data and third gas concentration decimal point data, respectively; s33, calculating the first gas concentration based on the first gas concentration high data, the first gas concentration low data and the first gas concentration decimal point data, calculating the second gas concentration based on the second gas concentration high data, the second gas concentration low data and the second gas concentration decimal point data, and calculating the third gas concentration based on the third gas concentration high data, the third gas concentration low data and the third gas concentration decimal point data.

Preferably, the first gas concentration(the first gas concentration high data 256+ the first gas concentration low data) 5/(10)^N1) Wherein N1 is the first gas concentration decimal point data; the second gas concentration (256 + 256 higher data of the second gas concentration + lower data of the second gas concentration)/(10)^N2) Wherein N2 is the second gas concentration decimal point data; the third gas concentration (the third gas concentration higher data 256+ the third gas concentration lower data)/(10)^N3) Wherein N3 is the third gas concentration decimal place data.

Further explanation will be given below with respect to methane, carbon monoxide and oxygen.

the data of the third byte and the fourth byte of the methane gas detection signal read by the IC2 are converted from 16-system data into 10-system data, i.e., the data of the upper byte and the lower byte of the gas concentration, and then assigned to IICDATAROM [2] and IICDATAROM [3] of the methane gas detection signal, respectively. Similarly, the data of the third byte and the fourth byte of the carbon monoxide gas detection signal read by the IC2 are converted from 16-system data into 10-system data, i.e. the data of the upper byte and the lower byte of the gas concentration, and then assigned to IICDATAROM [2] and IICDATAROM [3] of the carbon monoxide gas detection signal, respectively. The third byte and the fourth byte of the oxygen gas detection signal read by the IC2 are converted from 16-ary data into 10-ary data, i.e., the upper byte and the lower byte of the gas concentration, and then assigned to IICDATAROM [2] and IICDATAROM [3] of the oxygen gas detection signal, respectively.

in the preferred embodiment, the fifth byte of data of the methane gas detection signal read by the IC2 is converted from 16-ary data into 10-ary data, i.e., data of decimal point of gas concentration, and then assigned to IICDATAROM [4] of the methane gas detection signal. The fifth byte data of the carbon monoxide gas detection signal read by the IC2 is converted from 16-system data into 10-system data, namely decimal point data of gas concentration, and then assigned to IICDATAROM [4] of the carbon monoxide gas detection signal respectively. The fifth byte data of the oxygen gas detection signal read by the IC2 is converted from 16-system data to 10-system data, that is, decimal point data of gas concentration, and then assigned to IICDATAROM [4] of the oxygen gas detection signal.

The gas concentrations of methane, carbon monoxide and oxygen were calculated by the following formula

(IICDATAROM [2 ]) of methane gas concentration (methane gas detection signal)]*256+IICDATAROM[3])*5/10^N1Wherein N1 ═ IICDATAROM [4]；

Carbon monoxide gas concentration (IICDATAROM [2 ]) of carbon monoxide gas detection signal]*256+IICDATAROM[3])//10^N2wherein N2 ═ ICDATAROM [4]；

Oxygen gas concentration (IICDATAROM [2 ]) as oxygen gas detection signal]*256+IICDATAROM[3])*10^N3wherein N3 ═ IICDATAROM [4]。

In a further preferred embodiment of the invention, the methane gas concentration, the carbon monoxide gas concentration and the oxygen gas concentration can be displayed on a display module of the three-in-one sensor, transmitted to an EEPR OM storage module for storage, transmitted to a network platform, and/or transmitted to a complete vehicle comprehensive controller of the explosion-proof mining electric vehicle through a handshake protocol.

Preferably, for example, the methane gas concentration, the carbon monoxide gas concentration and the oxygen gas concentration can be self-checked or remotely adjusted through an I/O module, displayed through an LED display module and subjected to acousto-optic alarm, so that underground real-time digital display is realized, and a signal can also be transmitted to a network platform through WIFI or 3G/4G network in real time.

Preferably, can also pass through the remote monitoring platform with methane gas concentration, carbon monoxide gas concentration and oxygen gas concentration, judge and resolve according to network communication protocol, filter and convert final data to carry out signal output with data through WIFI in the pit or 3G/4G network, send to control substation and ground central station in the pit, realize networking and detect.

for example, after the three-in-one sensor is powered on, handshake data are sent to the integrated vehicle controller; after receiving the handshaking data, the whole vehicle integrated controller sends a handshaking command to the three-in-one sensor; the trinity sensor is received stop sending the data of shaking hands after the order of shaking hands in order to show that it is successful and to shake hands the comprehensive controller of whole car sends methane gas concentration, carbon monoxide gas concentration and oxygen gas concentration. For example, after the explosion-proof mining electric vehicle is powered on and started up, if the whole vehicle integrated controller does not receive the handshake data sent by the three-in-one sensor within a set time (for example, within five minutes), the handshake failure is indicated, and alarm information of the handshake failure is displayed. Handshake protocol and data are realized through a CAN bus protocol, and the CAN bus rate is 250 Kbps.

in a further preferred embodiment of the present invention, the methane gas concentration, the carbon monoxide gas concentration and the oxygen gas concentration may be compared with a standard methane gas concentration, a standard carbon monoxide gas concentration and a standard oxygen gas concentration, and when at least one of them is greater than the corresponding standard gas concentration, an alarm signal, such as an audible and visual alarm signal, is generated.

The three-in-one sensor gas concentration detection method and the three-in-one sensor can realize accurate monitoring of various gas components in the underground site. Further, through cyclic reading and data conversion verification, more accurate concentration calculation can be carried out on various gas components. Still further, communicate with vehicle control unit through the agreement of shaking hands, can carry out the transmission of data better.

FIG. 2 is a schematic block diagram of a first embodiment of the triad sensor of the present invention. As shown in fig. 2, the triad sensor of the present invention includes a triad probe integration module 100 and a control module 200. As shown in fig. 2, the triad probe integration module includes a first sensor probe (methane probe 110), a second sensor probe (carbon monoxide probe 120), and a third sensor probe (oxygen probe 130) and probe signal processing circuitry 140. The control module 200 comprises a microprocessor 210 and a computer program 210 stored on the microprocessor. The microprocessor 210 is in communication connection with the probe signal processing circuit 140, and the microprocessor 210 implements the three-in-one sensor gas concentration detection method when the microprocessor 210 executes the computer program. Based on the teachings of the present invention, one skilled in the art can construct such a computer program 210, which is not similar here.

In a preferred embodiment of the present invention, the three-in-one probe integrated module 100 and the control module 200 may be disposed in a housing of a rectangular parallelepiped structure, which is stamped from stainless steel and has high impact resistance. The joint of the front cover and the rear cover is a dustproof and waterproof rubber sealing ring, and the lower part of the joint is provided with a methane probe 110, a carbon monoxide probe 120 and an oxygen probe 130. The methane probe 110, the carbon monoxide probe 120 and the oxygen probe 130 can adopt imported high-precision industrial sensor probes, the whole machine has stable performance, long service life and long adjustment period, can output power-off control signals, can randomly set the power-off point of the control signals, has a fault self-checking function and is convenient to use and maintain. The device can comprise a sensor probe gas chamber and a probe sensing element, when in work, three gases of oxygen, methane and carbon monoxide in a detected environment enter the sensor probe gas chamber in a diffusion mode to react with the probe sensing element and convert the three gases into corresponding standard electric signals of the three gases, namely a methane gas detection signal, a carbon monoxide gas detection signal and an oxygen gas detection signal, and the data can be output through TTL serial ports. The methane probe 110, the carbon monoxide probe 120, and the oxygen probe 130 may be electrically connected to the probe signal processing circuitry 140 to generate detected methane gas detection signals, carbon monoxide gas detection signals, and oxygen gas detection signals. The microprocessor 210 is communicatively connected to the probe signal processing circuit 140, so as to receive the methane gas detection signal, the carbon monoxide gas detection signal, and the oxygen gas detection signal, perform subsequent processing, and generate the methane gas concentration, the carbon monoxide gas concentration, and the oxygen gas concentration.

FIG. 3 is a functional block diagram of a second embodiment of a triad sensor of the present invention. As shown in fig. 3, the triad sensor of the present invention includes a triad probe integration module 100 and a control module 200. As shown in fig. 3, the triad probe integrated module 100 includes a methane probe 110, a carbon monoxide probe 120 and an oxygen probe 130, and probe signal processing circuitry 140. The control module 200 comprises a microprocessor 210 and a computer program 210 stored on the microprocessor. The microprocessor 210 is in communication connection with the probe signal processing circuit 140, and the microprocessor 210 implements the three-in-one sensor gas concentration detection method when the microprocessor 210 executes the computer program.

As shown in fig. 3, the control module 200 further includes an alarm module 270, an LED display module 230, an interface module 240, a calibration module 250, a storage module 260, a power supply module 280 and an output module 290, which are respectively in communication connection with the microprocessor 210. In the preferred embodiment of the invention, the alarm module comprises an alarm lamp group consisting of high-brightness red luminous tubes, a sound alarm module consisting of piezoelectric ceramics and a display window consisting of three four-position eight-segment red nixie tubes. The display window is also used to construct the LED display module 230. The zero point, the precision and the alarm point of the sensing probe can be adjusted by the adjusting module 250 through a mining infrared remote controller. The interface module 240 may include an I2C interface and an I/O interface to communicate with the outside. The power module 280 may be an external 5V battery or powered by an on-board power source. The output module 290 may include a wired output unit 292 and a wireless output unit 291, for example, WIFI or 3G/4G network signals are transmitted to a network platform in real time for display and storage, and for example, a CAN bus unit communicates with an integrated vehicle controller. The microprocessor 210 may adopt an STM32F107 single chip microcomputer, and the storage module 260 may be an EEPR OM storage module. Furthermore, trinity sensor can connect talkback function and video function (wired individual soldier system of connecing or individual soldier system of mode that the bluetooth is wireless).

the three-in-one sensor can realize accurate monitoring of various gas components in the underground site. Further, through cyclic reading and data conversion verification, more accurate concentration calculation can be carried out on various gas components. Still further, communicate with vehicle control unit through the agreement of shaking hands, can carry out the transmission of data better.

Another embodiment of the present invention provides a machine-readable storage and/or storage medium having stored therein machine code and/or a computer program having at least one code section for execution by a machine and/or a computer to cause the machine and/or computer to perform the steps of the triple sensor gas concentration detection method described herein.

Accordingly, the present invention can be realized in hardware, software, or a combination of hardware and software. The present invention can be realized in a centralized fashion in at least one computer system, or in a distributed fashion where different elements are spread across several interconnected computer systems. Any kind of computer system or other apparatus adapted for carrying out the methods of the present invention is suited. A typical combination of hardware and software could be a general purpose computer system with a computer program that, when being loaded and executed, controls the computer system such that it carries out the methods described herein.

The present invention may also be implemented by a computer program product, comprising all the features enabling the implementation of the methods of the invention, when loaded in a computer system. The computer program in this document refers to: any expression, in any programming language, code or notation, of a set of instructions intended to cause a system having an information processing capability to perform a particular function either directly or after either or both of the following: a) conversion to other languages, codes or symbols; b) reproduced in a different format.

while the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.