CN112730747B

CN112730747B - Gas detection method, system, gas analyzer and storage medium

Info

Publication number: CN112730747B
Application number: CN202011566446.2A
Authority: CN
Inventors: 刘明书; 张文军
Original assignee: Shenzhen Anshi Intelligent Co ltd
Current assignee: Shenzhen Anshi Intelligent Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-17
Anticipated expiration: 2040-12-25
Also published as: CN112730747A

Abstract

The embodiment of the application discloses a gas detection method, a gas detection system, a gas analyzer and a storage medium, wherein the system comprises the gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, and the gas analyzer is alternately switched between the first detection channel and the second detection channel; when the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is kept closed, and first gas detection data of the first container are detected; when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, the second gas detection data of the second container are detected, the two containers can be monitored in real time in a mode of switching the two detection channels, the use efficiency of the gas analyzer is improved, and the equipment investment cost is reduced.

Description

Gas detection method, system, gas analyzer and storage medium

Technical Field

The application relates to the technical field of gas detection, in particular to a gas detection method, a gas detection system, a gas analyzer and a storage medium.

Background

Carbon monoxide analysis appearance on the existing market can only monitor the carbon monoxide gas concentration in a set of container usually, and carbon monoxide analysis appearance can only monitor a set of container in the carbon monoxide gas, and under the insufficient condition of equipment, production efficiency is lower.

Disclosure of Invention

The embodiment of the application provides a gas detection method, a gas detection system, a gas analyzer and a storage medium, and can monitor two containers in real time by switching two detection channels, so that the use efficiency of the gas analyzer is improved, and the input cost of equipment is reduced.

In a first aspect, an embodiment of the present application provides a gas detection method, which is applied to a gas detection parallel switching system, where the system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, and the second container is communicated with the gas analyzer through a second valve to form a second detection channel, where the method includes:

the gas analyzer alternately switches between the first detection channel and the second detection channel; wherein the content of the first and second substances,

when the gas analyzer is switched to a first detection channel, a first valve is opened, a second valve is kept closed, and first gas detection data of the first container are detected;

and when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, and second gas detection data of the second container are detected.

In a second aspect, embodiments of the present application provide a gas detection parallel switching system, which includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, wherein,

the gas analyzer is used for alternately switching between the first detection channel and the second detection channel; wherein the content of the first and second substances,

the gas analyzer is further used for opening the first valve and keeping the second valve closed when the first detection channel is switched to the first detection channel, and detecting first gas detection data of the first container;

and the gas analyzer is also used for opening the second valve when switching to the second detection channel, keeping the first valve closed and detecting second gas detection data of the second container.

In a third aspect, embodiments of the present application provide a gas analyzer, including:

a processing unit for alternately switching between the first detection channel and the second detection channel; wherein the content of the first and second substances,

the processing unit is further used for opening the first valve and keeping the second valve closed when the first detection channel is switched to the first detection channel, and detecting first gas detection data of the first container;

and the processing unit is also used for opening the second valve, keeping the first valve closed and detecting second gas detection data of the second container when the second detection channel is switched to the second detection channel.

In a fourth aspect, the present application provides a computer-readable storage medium, where the computer-readable storage medium is used to store a computer program, where the computer program is used to make a computer execute some or all of the steps described in the first aspect of the present application.

In a fifth aspect, embodiments of the present application provide a computer program product, where the computer program product includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to perform some or all of the steps as described in the first aspect of the embodiments of the present application. The computer program product may be a software installation package

The embodiment of the application has the following beneficial effects:

it can be seen that, the gas detection method, the system, the gas analyzer and the storage medium provided in the embodiments of the present application, the system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, and the gas analyzer alternately switches between the first detection channel and the second detection channel; when the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is kept closed, and first gas detection data of the first container are detected; when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, the second gas detection data of the second container are detected, the two containers can be monitored in real time in a mode of switching the two detection channels, the use efficiency of the gas analyzer is improved, and the equipment investment cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a gas detection parallel switching system according to an embodiment of the present disclosure;

FIG. 2 is a schematic flow chart of a gas detection method according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a gas analyzer provided in an embodiment of the present application;

fig. 4 is a block diagram of functional units of a gas analyzer 400 according to an embodiment of the present disclosure.

Detailed Description

In order to make the technical solutions of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The following describes embodiments of the present application in detail.

Referring to fig. 1, fig. 1 is a schematic diagram of an architecture of a gas detection parallel switching system disclosed in an embodiment of the present application, where the gas detection parallel switching system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, where,

Wherein, the gas analyzer may be any one of: carbon monoxide analyzer, carbon dioxide analyzer, methane analyzer, etc., and the embodiments of the present application are not limited.

Optionally, prior to the first gas detection data detecting the first container and the second gas detection data detecting the second container, the gas analyzer is further configured to:

switching to the first detection channel, injecting sample gas with a first preset concentration into the first container, and detecting the first sample detection concentration of the first container through the gas analyzer after the gas concentration is stabilized for a first preset time;

switching to the second detection channel, injecting the sample gas with the first preset concentration into the second container, and detecting the second sample detection concentration of the second container through the gas analyzer after the gas concentration is stabilized for the first preset time;

switching to the first detection channel, continuously injecting sample gas into the first container to enable the gas concentration of the first container to reach a second preset concentration, and detecting a third sample detection concentration of the first container through the gas analyzer after the gas concentration is stabilized for a second preset time, wherein the second preset concentration is greater than the first preset concentration;

switching to the second detection channel, continuously injecting sample gas into the second container to enable the gas concentration of the second container to reach the second preset concentration, and detecting a fourth sample detection concentration of the second container through the gas analyzer after the gas concentration is stabilized for the second preset time;

calibrating the gas analyzer according to the first preset concentration, the first sample detection concentration, the second preset concentration, the third sample detection concentration and the fourth sample detection concentration.

Optionally, the gas analyzer is further configured to:

after the first gas detection data of the first container is detected, calibrating the first gas detection data according to a first mapping relation between a detection value and a calibration coefficient to obtain target first gas detection data;

and after the second gas detection data of the second container are detected, calibrating the second gas detection data according to a second mapping relation between the detection values and the calibration coefficients to obtain target second gas detection data.

Optionally, the first gas detection data includes a first gas detection value, and in the aspect of calibrating the first gas detection data according to a first mapping relationship between the detection value and a calibration coefficient to obtain target first gas detection data, the gas analyzer is specifically configured to:

determining a target calibration coefficient corresponding to the first gas detection value according to a first mapping relation between the detection value and the calibration coefficient;

determining the target first gas detection data from the target calibration coefficients and the first gas detection values.

the first detection channel and the second detection channel are calibrated in a measuring range of the gas analyzer in advance to obtain a first mapping relation between a detection value and a calibration coefficient and a second mapping relation between the detection value and the calibration coefficient, wherein the first mapping relation corresponds to the first detection channel, and the second mapping relation corresponds to the second detection channel.

Optionally, in the aspect of calibrating the first detection channel and the second detection channel in the range of the gas analyzer in advance, the gas analyzer is specifically configured to:

alternately injecting sample gas into the first container and the second container under the state of alternately switching to the first detection channel and the second detection channel, so that the sample gas in the first container and the second container alternately reaches different preset concentrations;

detecting, by the gas analyzer, a sample detection concentration of the first container in a state of each of the plurality of preset concentrations when the sample gas of the first container is in the state of each of the plurality of preset concentrations, to obtain a plurality of first sample detection concentrations;

detecting, by the gas analyzer, a sample detection concentration of the second container in a state of each of the plurality of preset concentrations when the sample gas of the second container is in the state of each of the plurality of preset concentrations, to obtain a plurality of second sample detection concentrations;

establishing a first mapping relation between a detection value and a calibration coefficient according to the plurality of preset concentrations and the plurality of first sample detection concentrations;

and establishing a second mapping relation between the detection numerical value and the calibration coefficient according to the plurality of preset concentrations and the plurality of second sample detection concentrations.

Optionally, in the aspect of establishing the first mapping relationship between the detection value and the calibration coefficient according to the plurality of preset concentrations and the plurality of first sample detection concentrations, the gas analyzer is specifically configured to:

determining a corresponding first concentration detection error according to each preset concentration in the plurality of preset concentrations and the corresponding sample detection concentration to obtain a plurality of first concentration detection errors;

selecting a plurality of target first concentration detection errors which are smaller than a preset value from the plurality of first concentration detection errors;

determining a target preset concentration corresponding to each target first concentration detection error in the plurality of target first concentration detection errors in the plurality of preset concentrations to obtain a plurality of target preset concentrations;

and establishing a first mapping relation between the detection numerical value and the calibration coefficient according to the preset target concentrations and the first target concentration detection errors.

It can be seen that in the gas detection parallel switching system provided in the embodiment of the present application, the system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, and the gas analyzer is alternately switched between the first detection channel and the second detection channel; when the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is kept closed, and first gas detection data of the first container are detected; when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, the second gas detection data of the second container are detected, the two containers can be monitored in real time in a mode of switching the two detection channels, the use efficiency of the gas analyzer is improved, and the equipment investment cost is reduced.

Optionally, the gas analyzer comprises an MCU chip.

Optionally, the gas analyzer of this application embodiment except containing the MCU chip, can also include artificial intelligence chip, MCU chip and artificial intelligence chip among the gas analyzer come interconnect communication through the dedicated channel, but the work of MCU chip independent control gas analyzer, in addition, the MCU chip also can be under the guidance of artificial intelligence chip control gas analyzer work, wherein, some intelligent control strategies can be exported for the MCU chip to artificial intelligence chip, guide the better work of MCU chip. The MCU chip can construct a microcontroller software platform, the artificial intelligence chip can construct an artificial intelligence chip software platform, the microcontroller software platform and the artificial intelligence chip software platform are two mutually independent software platforms, and the artificial intelligence chip software platform is in communication connection with the microcontroller software platform.

Wherein, artificial intelligence chip and MCU chip all accessible bluetooth communication module or wired link and master control center or other equipment communication connection, two or more gas analysis appearance can constitute gas analysis appearance group. The mobile terminal can control the MCU chip to enter a sleep state from a wake-up state by sending a sleep instruction to the MCU chip of any one gas analyzer in the gas analyzer group (the gas analyzer group comprises at least two paired gas analyzers), and when the MCU chip of the gas analyzer is in the sleep state, the detection function of the gas analyzer fails. The main control center can also instruct the artificial intelligence chip to inform the MCU chip to enter the awakening state from the dormancy state by sending an awakening instruction to the artificial intelligence chip of the gas analyzer. In some possible embodiments, the artificial intelligence chip may always be in the wake-up state when the power is normally supplied. In some possible embodiments, the MCU chip in the sleep state may only receive instructions from the artificial intelligence chip, that is, at this time, the dedicated channel between the MCU chip and the artificial intelligence chip is not closed, but all other communication channels of the MCU chip are in the closed state, where the MCU chip in the sleep state may only receive instructions from the artificial intelligence chip, that is, the MCU chip in the sleep state may only be woken up by the artificial intelligence chip. When the artificial intelligence chip awakens the MCU chip that is in the dormant state and fails, the artificial intelligence chip can be switched into MCU chip mode of operation, replaces MCU chip control gas analysis appearance work in the coming time, switches into MCU chip mode of operation when the artificial intelligence chip, and to other parts in the gas analysis appearance, the artificial intelligence chip is equivalent to the role of MCU chip in this time.

Referring to fig. 2, fig. 2 is a schematic flow chart of a gas detection method according to an embodiment of the present disclosure, and as shown in the drawing, the gas detection parallel switching system shown in fig. 1 is applied to the gas detection parallel switching system, where the system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, and the second container is communicated with the gas analyzer through a second valve to form a second detection channel, and the gas detection method includes:

201. the gas analyzer alternately switches between the first detection channel and the second detection channel.

In the gas detection parallel switching system shown in fig. 1, the gas analyzer can alternately open the first valve and the second valve, and when the first valve is opened, the gas analyzer is communicated with the first container; when the second valve is opened, the gas analyzer is communicated with the second container, and thus, the switching between the first detection channel and the second detection channel can be alternately performed.

202. And when the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is kept closed, and the first gas detection data of the first container are detected.

When the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is closed, the gas analyzer can detect first gas detection data, specifically detect gas concentration, of the first container to obtain a gas concentration detection value, for example, if the gas analyzer is a carbon monoxide analyzer, the carbon monoxide concentration of the first container can be detected in real time to obtain a first carbon monoxide concentration detection value.

203. And when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, and second gas detection data of the second container are detected.

When the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is closed, and the gas analyzer can detect the first gas detection data, specifically the gas concentration, of the second container to obtain a gas concentration detection value.

Therefore, the two containers are monitored in real time by switching the two detection channels, the service efficiency of the gas analyzer is improved, and the equipment investment cost is reduced.

Optionally, before the step 202 and the step 203, the method further includes:

21. the gas analyzer is switched to the first detection channel, the first container is injected with sample gas with a first preset concentration, and after the gas concentration is stabilized for a first preset time, the first sample detection concentration of the first container is detected through the gas analyzer;

22. the gas analyzer is switched to the second detection channel, the second container is injected with the sample gas with the first preset concentration, and after the gas concentration is stabilized for the first preset time, the gas analyzer is used for detecting the second sample detection concentration of the second container;

23. the gas analyzer is switched to the first detection channel, sample gas is continuously injected into the first container, the gas concentration of the first container reaches a second preset concentration, after the gas concentration is stabilized for a second preset time, the third sample detection concentration of the first container is detected through the gas analyzer, and the second preset concentration is larger than the first preset concentration;

24. switching the gas analyzer to the second detection channel, continuously injecting sample gas into the second container to enable the gas concentration of the second container to reach the second preset concentration, and detecting a fourth sample detection concentration of the second container through the gas analyzer after the gas concentration is stabilized for the second preset time;

25. calibrating the gas analyzer according to the first preset concentration, the first sample detection concentration, the second preset concentration, the third sample detection concentration and the fourth sample detection concentration.

The first preset concentration and the second preset concentration can be set by a user, the first preset time and the second preset time can be set according to different gas concentrations, for example, if the gas to be detected is carbon monoxide, the first preset concentration can be 150PPM, the second preset concentration can be 300PPM, the first preset time can be 3 minutes, the second preset time can be 3 minutes, the first preset time and the second preset time can be different values, and the time required for stabilizing the gas concentration is specifically determined by the time required actually.

In the embodiment of the present application, before the gas analyzer is used for gas detection, the gas analyzer may be calibrated, specifically, the gas analyzer is switched to the first detection channel by controlling the first valve to open, the gas analyzer is switched to the second detection channel by controlling the second valve to open, the first sample detection concentration of the first container at the first preset concentration is sequentially detected, the second sample detection concentration of the second container at the first preset concentration is detected, and the third sample detection concentration of the first container at the second preset concentration and the fourth sample detection concentration of the second container at the second preset concentration are detected.

In step 25, calibrating the gas analyzer according to the first preset concentration, the first sample detection concentration, the second preset concentration, the third sample detection concentration, and the fourth sample detection concentration may include:

if the absolute value of a first concentration difference between the first preset concentration and the first sample detection concentration, the absolute value of a second concentration difference between the first preset concentration and the second sample detection concentration, the absolute value of a third concentration difference between the second preset concentration and the third sample detection concentration, and the absolute value of a fourth concentration difference between the second preset concentration and the fourth sample detection concentration are all smaller than or equal to a first preset error threshold, the detection error of the gas analyzer is smaller, and the gas analyzer can be determined to be calibrated within a tolerance range;

if the absolute value of a first concentration difference between the first preset concentration and the first sample detection concentration, the absolute value of a second concentration difference between the first preset concentration and the second sample detection concentration, the absolute value of a third concentration difference between the second preset concentration and the third sample detection concentration, and the absolute value of a fourth concentration difference between the second preset concentration and the fourth sample detection concentration are all greater than a first preset error threshold and less than a second preset error threshold, it is indicated that the detection error of the gas analyzer is large, the gas analyzer needs to be calibrated, calibration parameters for the gas analyzer can be determined according to the absolute value of the first concentration difference, the absolute value of the second concentration difference, the absolute value of the third concentration difference, and the absolute value of the fourth concentration difference, and then the gas analyzer is calibrated according to the calibration parameters.

Optionally, the method further comprises:

26. after the first gas detection data of the first container is detected, calibrating the first gas detection data according to a first mapping relation between a detection value and a calibration coefficient to obtain target first gas detection data;

27. and after the second gas detection data of the second container are detected, calibrating the second gas detection data according to a second mapping relation between the detection values and the calibration coefficients to obtain target second gas detection data.

In the embodiment of the present application, it is considered that the first valve, the second valve, the first container, and the second valve may also be factors causing detection errors except for the gas analyzer, and therefore, the first detection channel and the second detection channel may be calibrated separately, and compared with the case where the gas analyzer is calibrated only, accurate calibration may be implemented, and accuracy of detection is improved.

Specifically, a first mapping relationship between the detection value and the calibration coefficient may be preset for calibration with respect to the first detection channel, and a second mapping relationship between the detection value and the calibration coefficient may be preset for calibration with respect to the second detection channel.

Optionally, in step 21, the calibrating the first gas detection data according to the first mapping relationship between the detection value and the calibration coefficient to obtain the target first gas detection data includes:

Wherein, through confirming the first gas detection data of target according to target calibration coefficient and first gas detection numerical value, can make the first gas detection data of target that obtain more accurate to calibrate the testing result of the first detection passageway that corresponds first container.

Optionally, before the step 201, the method further includes:

204. the first detection channel and the second detection channel are calibrated in a measuring range of the gas analyzer in advance to obtain a first mapping relation between a detection value and a calibration coefficient and a second mapping relation between the detection value and the calibration coefficient, wherein the first mapping relation corresponds to the first detection channel, and the second mapping relation corresponds to the second detection channel.

In specific implementation, the calibration can be performed on the first detection channel and the second detection channel respectively in the process of alternately switching the gas analyzer to the first detection channel and the second detection channel, so as to obtain a first mapping relation corresponding to the first detection channel and a second mapping relation corresponding to the second detection channel.

Optionally, in step 204, the calibrating the first detection channel and the second detection channel in advance within the range of the measurement range of the gas analyzer may include:

41. the gas analyzer alternately injects sample gas into the first container and the second container under the state of alternately switching to the first detection channel and the second detection channel, so that the sample gas in the first container and the second container alternately reaches different multiple preset concentrations;

42. detecting, by the gas analyzer, a sample detection concentration of the first container in a state of each of the plurality of preset concentrations when the sample gas of the first container is in the state of each of the plurality of preset concentrations, to obtain a plurality of first sample detection concentrations;

43. detecting, by the gas analyzer, a sample detection concentration of the second container in a state of each of the plurality of preset concentrations when the sample gas of the second container is in the state of each of the plurality of preset concentrations, to obtain a plurality of second sample detection concentrations;

44. establishing a first mapping relation between a detection value and a calibration coefficient according to the plurality of preset concentrations and the plurality of first sample detection concentrations;

45. and establishing a second mapping relation between the detection numerical value and the calibration coefficient according to the plurality of preset concentrations and the plurality of second sample detection concentrations.

In a specific implementation, the gas analyzer is alternately switched to the first detection channel and the second detection channel, so as to alternately inject the sample gas into the first container and the second container, so that the concentration of the sample gas in the first container is gradually increased, the concentration of the sample gas in the second container is gradually increased, for example, after the first valve is opened and closed for a plurality of times, and the gas is injected when the first valve is opened, the concentration of the sample gas in the first container can reach a plurality of preset concentrations such as P1, P2, P3,. the like, after the second valve is opened and closed for a plurality of times, and the gas is injected when the second valve is opened, the concentration of the sample gas in the second container can reach a plurality of preset concentrations such as Q1, Q2, Q3,. the like, after the gas concentration in the first container is stabilized after each gas injection, the concentration of the sample in the first container can be detected by the gas analyzer, in this way, a plurality of first sample detection concentrations can be detected, and similarly, a plurality of second sample detection concentrations can be detected for the second container.

Optionally, in step 44, the establishing a first mapping relationship between the detected values and the calibration coefficients according to the plurality of preset concentrations and the plurality of first sample detected concentrations may include:

The first mapping relation between the detection value and the calibration coefficient can be established by determining a plurality of target first concentration detection errors smaller than a preset value and then according to the plurality of target preset concentrations and the plurality of target first concentration detection errors, and thus, calibration can be performed for the first detection channel.

The method for establishing the second mapping relationship for the second detection channel may refer to the method for establishing the first mapping relationship, which is not described herein again.

It can be seen that the gas detection method provided in the embodiment of the present application is applied to a gas detection parallel switching system, the system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, and the gas analyzer alternately switches between the first detection channel and the second detection channel; when the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is kept closed, and first gas detection data of the first container are detected; when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, the second gas detection data of the second container are detected, the two containers can be monitored in real time in a mode of switching the two detection channels, the use efficiency of the gas analyzer is improved, and the equipment investment cost is reduced.

Referring to fig. 3 in keeping with the above embodiments, fig. 3 is a schematic structural diagram of a gas analyzer according to an embodiment of the present application, and as shown in the figure, the gas analyzer includes a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor, and optionally, the processor may include an MCU chip, and in an embodiment of the present application, the programs include instructions for performing the following steps:

alternately switching between the first detection channel and the second detection channel; wherein the content of the first and second substances,

when the gas analyzer is switched to a first detection channel, opening a first valve, keeping a second valve closed, and detecting first gas detection data of the first container;

and when the gas analyzer is switched to the second detection channel, opening the second valve, keeping the first valve closed, and detecting second gas detection data of the second container.

In one possible example, prior to the detecting the first gas detection data of the first container and the detecting the second gas detection data of the second container, the program further includes instructions for:

switching the gas analyzer to the second detection channel, continuously injecting sample gas into the second container to enable the gas concentration of the second container to reach the second preset concentration, and detecting a fourth sample detection concentration of the second container through the gas analyzer after the gas concentration is stabilized for the second preset time;

In one possible example, the program further comprises instructions for performing the steps of:

In one possible example, the first gas detection data comprises first gas detection values, and the program comprises instructions for performing the following steps in calibrating the first gas detection data according to a first mapping between detection values and calibration coefficients to obtain target first gas detection data:

In one possible example, in the pre-calibrating the first detection channel and the second detection channel over the range of span of the gas analyzer, the program further includes instructions for:

under the condition that the gas analyzer is switched to the first detection channel and the second detection channel alternately, injecting sample gas into the first container and the second container alternately to enable the sample gas in the first container and the second container to reach different preset concentrations alternately;

In one possible example, in the establishing of the first mapping relationship between the detected values and the calibration coefficients according to the plurality of preset concentrations and the plurality of first sample detected concentrations, the program further includes instructions for performing the steps of:

The above description has introduced the solution of the embodiment of the present application mainly from the perspective of the method-side implementation process. It is understood that in order to implement the above functions, it includes corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the present application is capable of hardware or a combination of hardware and computer software implementing the various illustrative elements and algorithm steps described in connection with the embodiments provided herein. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the functional units may be divided according to the above method example, for example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit. It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation.

Fig. 4 is a block diagram of functional units of a gas analyzer 400 according to an embodiment of the present application, where the gas analyzer 400 includes: a processing unit 401 for, among other things,

the processing unit 401 is configured to switch between the first detection channel and the second detection channel alternately; wherein the content of the first and second substances,

the processing unit 401 is further configured to open the first valve and keep the second valve closed when switching to the first detection channel, so as to detect the first gas detection data of the first container;

the processing unit 401 is further configured to open the second valve, keep the first valve closed, and detect second gas detection data of the second container when switching to the second detection channel.

It can be seen that the gas analyzer described in the embodiment of the present application, the gas detection method provided in the embodiment of the present application, is applied to a gas detection parallel switching system, the system includes a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, and the gas analyzer alternately switches between the first detection channel and the second detection channel; when the gas analyzer is switched to the first detection channel, the first valve is opened, the second valve is kept closed, and first gas detection data of the first container are detected; when the gas analyzer is switched to the second detection channel, the second valve is opened, the first valve is kept closed, the second gas detection data of the second container are detected, the two containers can be monitored in real time in a mode of switching the two detection channels, the use efficiency of the gas analyzer is improved, and the equipment investment cost is reduced.

In one possible example, prior to said detecting first gas detection data of said first container and said detecting second gas detection data of said second container, said processing unit 401 is specifically configured to:

In one possible example, the processing unit 401 is further configured to:

In one possible example, the first gas detection data comprises first gas detection values, and in terms of calibrating the first gas detection data according to a first mapping relationship between the detection values and calibration coefficients to obtain target first gas detection data, the processing unit 401 is specifically configured to:

In one possible example, prior to the first gas detection data detecting the first container and the second gas detection data detecting the second container, the processing unit 401 is further configured to:

In one possible example, in the aspect of calibrating the first detection channel and the second detection channel in advance within the range of the gas analyzer, the processing unit 401 is specifically configured to:

In one possible example, in the aspect of establishing the first mapping relationship between the detection values and the calibration coefficients according to the plurality of preset concentrations and the plurality of first sample detection concentrations, the processing unit 401 is specifically configured to:

It is to be understood that the functions of each program module of the data processing apparatus in this embodiment may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the relevant description of the foregoing method embodiment, which is not described herein again.

Embodiments of the present application also provide a computer storage medium storing a computer program for electronic data exchange, the computer program causing a computer to perform some or all of the steps of any of the methods as described in the above method embodiments, the computer including a gas analyzer.

Embodiments of the present application also provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods as described in the above method embodiments. The computer program product may be a software installation package, said computer comprising a gas analyzer.

It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are preferred embodiments and that the acts and modules referred to are not necessarily required in this application.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the above-described division of the units is only one type of division of logical functions, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated unit may be stored in a computer readable memory if it is implemented in the form of a software functional unit and sold or used as a stand-alone product. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the above-mentioned method of the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.

Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.

The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A gas detection method applied to a gas detection parallel switching system, the system including a gas analyzer, a first container and a second container, the first container communicating with the gas analyzer through a first valve to form a first detection channel, the second container communicating with the gas analyzer through a second valve to form a second detection channel, the method comprising:

when the gas analyzer is switched to a second detection channel, a second valve is opened, the first valve is kept closed, and second gas detection data of the second container are detected;

wherein prior to the first gas detection data detecting the first container and the second gas detection data detecting the second container, the method further comprises:

the gas analyzer is switched to the first detection channel, the first container is injected with sample gas with a first preset concentration, and after the gas concentration is stabilized for a first preset time, the first sample detection concentration of the first container is detected through the gas analyzer;

the gas analyzer is switched to the second detection channel, the second container is injected with the sample gas with the first preset concentration, and after the gas concentration is stabilized for the first preset time, the gas analyzer is used for detecting the second sample detection concentration of the second container;

the gas analyzer is switched to the first detection channel, sample gas is continuously injected into the first container, the gas concentration of the first container reaches a second preset concentration, after the gas concentration is stabilized for a second preset time, the third sample detection concentration of the first container is detected through the gas analyzer, and the second preset concentration is larger than the first preset concentration;

calibrating the gas analyzer according to the first preset concentration, the first sample detection concentration, the second preset concentration, the third sample detection concentration and the fourth sample detection concentration, wherein the first preset time length and the second preset time length are different values and are determined by the time length actually required by the stability of the gas concentration.

2. The method of claim 1, further comprising:

3. The method of claim 2, wherein the first gas detection data comprises first gas detection values, and wherein calibrating the first gas detection data according to a first mapping between detection values and calibration coefficients to obtain target first gas detection data comprises:

4. The method of claim 2 or 3, wherein prior to the first gas detection data detecting the first container and the second gas detection data detecting the second container, the method further comprises:

5. The method of claim 4, wherein the pre-calibrating the first detection channel and the second detection channel over the span of the gas analyzer comprises:

the gas analyzer alternately injects sample gas into the first container and the second container under the state of alternately switching to the first detection channel and the second detection channel, so that the sample gas in the first container and the second container alternately reaches different multiple preset concentrations;

6. The method of claim 5, wherein establishing a first mapping between the detected values and calibration coefficients according to the preset concentrations and the first sample detected concentrations comprises:

7. A gas detection parallel switching system, characterized in that the system comprises a gas analyzer, a first container and a second container, the first container is communicated with the gas analyzer through a first valve to form a first detection channel, the second container is communicated with the gas analyzer through a second valve to form a second detection channel, wherein,

the gas analyzer is further used for opening a second valve when switching to a second detection channel, keeping the first valve closed, and detecting second gas detection data of the second container;

wherein prior to the detecting the first gas detection data of the first container and the detecting the second gas detection data of the second container, the system further comprises:

the gas analyzer is used for switching to the first detection channel, injecting sample gas with a first preset concentration into the first container, and detecting the first sample detection concentration of the first container through the gas analyzer after the gas concentration is stabilized for a first preset time;

the gas analyzer is used for switching to the second detection channel, injecting the second container into the sample gas with the first preset concentration, and detecting the second sample detection concentration of the second container through the gas analyzer after the gas concentration is stabilized for the first preset time;

the gas analyzer is used for switching to the first detection channel, continuously injecting sample gas into the first container to enable the gas concentration of the first container to reach a second preset concentration, and detecting a third sample detection concentration of the first container through the gas analyzer after the gas concentration is stabilized for a second preset time, wherein the second preset concentration is greater than the first preset concentration;

8. A gas analyzer for performing the method of any one of claims 1-6, the gas analyzer comprising:

the processing unit is further used for opening the second valve, keeping the first valve closed and detecting second gas detection data of the second container when the second detection channel is switched to the second detection channel;

wherein prior to the first gas detection data detecting the first container and the second gas detection data detecting the second container,

the gas analyzer is used for switching to the second detection channel, continuing to inject sample gas into the second container to enable the gas concentration of the second container to reach the second preset concentration, and detecting a fourth sample detection concentration of the second container through the gas analyzer after the gas concentration is stabilized for the second preset time;

9. A computer-readable storage medium, characterized in that a computer program for electronic data exchange is stored, wherein the computer program causes a computer to perform the method according to any one of claims 1-6.