Method and system for separating overlapping spectral lines of characteristic absorption peaks of mine gas

Abstract

The invention provides a mine gas characteristic absorption peak overlapping spectral line separation method and system, and belongs to the field of coal mine underground environment gas monitoring, and the method comprises the following steps: processing a plurality of groups of mixed gases, and determining a fingerprint area absorption peak of each mine gas in the mixed gases; determining a wave number interval of the fingerprint area absorption peak of each mine gas based on the fingerprint area absorption peak of each mine gas; and separating the overlapped spectral lines of the multiple groups of mixed gases based on the wave number interval of the fingerprint region absorption peak of each mine gas, and determining the category of each mine gas. According to the separation method and system for the characteristic absorption peak overlapping spectral lines of the mine gas, the accuracy of qualitative and quantitative analysis on the mine gas can be improved, and separation of the characteristic absorption peak overlapping spectral lines is achieved.

Description

Technical Field

[0001] The present invention belongs to the field of coal mine underground environmental gas monitoring, and more specifically, relates to a method and system for separating overlapping spectral lines of characteristic absorption peaks of coal mine gas. Background Art

[0002] Coal mine disaster gases not only seriously threaten the safe production of coal mines, but also cause serious damage to our production and living environment. Therefore, timely and accurate analysis of the types and concentrations of coal mine disaster gases is of great significance for early warning of accidents such as mine fires and gas explosions.

[0003] For the qualitative and quantitative analysis of coal mine disaster gas, the sensor method and gas chromatography method are usually used. Among them, the sensor method has a large error in its measurement results due to the influence of the underground environment; the gas chromatograph cannot achieve rapid and continuous monitoring and analysis, and the chromatographic column in the gas chromatograph requires frequent maintenance, cumbersome operation, and difficult maintenance. It can only meet the requirements of daily gas analysis in coal mines and cannot adapt to emergency rescue applications during disasters. Therefore, how to accurately analyze mine gas is one of the hot and difficult issues in current research. Summary of the invention

[0004] The purpose of the present disclosure is to provide a method and system for separating overlapping spectral lines of characteristic absorption peaks of mine gas, so as to improve the accuracy of qualitative and quantitative analysis of mine gas and realize the separation of overlapping spectral lines of characteristic absorption peaks.

[0005] In a first aspect of an embodiment of the present disclosure, a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas is provided, comprising: Process multiple groups of mixed gases to determine the fingerprint absorption peaks of each mine gas in the mixed gases; Determine the fingerprint region absorption peak wave number interval of each mine gas based on the fingerprint region absorption peak of each mine gas; The overlapping spectral lines of the plurality of groups of mixed gases are separated based on the absorption peak wave number intervals of the fingerprint regions of the respective mine gases to determine the categories of the respective mine gases.

[0006] A second aspect of the embodiments of the present disclosure provides a device for separating overlapping spectral lines of characteristic absorption peaks of mine gas, comprising: A mixed gas processing module is used to process multiple groups of mixed gases and determine the fingerprint absorption peaks of each mine gas in the mixed gases; A wave number interval determination module, used to determine the fingerprint region absorption peak wave number interval of each mine gas based on the fingerprint region absorption peak of each mine gas; The overlapping spectral line separation module is used to separate the overlapping spectral lines of the multiple groups of mixed gases based on the fingerprint region absorption peak wave number interval of each mine gas to determine the category of each mine gas.

[0007] In a third aspect of an embodiment of the present disclosure, an electronic device is provided, including a memory, a processor, and a computer program stored in the memory and running on the processor, wherein the processor implements the steps of the above-mentioned method for separating overlapping spectral lines of characteristic absorption peaks of mine gas when executing the computer program.

[0008] In a fourth aspect of the embodiments of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the above-mentioned method for separating overlapping spectral lines of characteristic absorption peaks of mine gas are implemented.

[0009] The beneficial effects of the method and system for separating overlapping spectral lines of characteristic absorption peaks of mine gas provided by the embodiments of the present disclosure are: The disclosed embodiments can accurately identify and determine the fingerprint absorption peaks of each mine gas, and use the fingerprint absorption peak wave number interval as the separation basis, effectively solving the problem of overlapping characteristic absorption peaks of mine gas, and improving the accuracy and reliability of mine gas identification. The disclosed embodiments not only help to quickly determine the type of gas in the mine, but also play an important role in mine safety monitoring, gas leak detection, etc. Therefore, the disclosed embodiments can improve the accuracy of qualitative and quantitative analysis of mine gas, and realize the separation of overlapping spectral lines of characteristic absorption peaks. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 A schematic flow chart of a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas provided in one embodiment of the present disclosure; Figure 2 A result diagram of separating the overlapping spectral lines of methane, ethane, propane, n-butane and isobutane respectively provided in one embodiment of the present disclosure; Figure 3 A result diagram of separating the overlapping spectral lines of ethane, propane, n-butane and isobutane provided in one embodiment of the present disclosure; Figure 4A result diagram of separating the overlapping spectral lines of propane, n-butane and isobutane provided in one embodiment of the present disclosure; Figure 5 A result diagram of separation of overlapping spectral lines of n-butane and isobutane provided in one embodiment of the present disclosure; Figure 6 A structural block diagram of a device for separating overlapping spectral lines of characteristic absorption peaks of mine gas provided in one embodiment of the present disclosure; Figure 7 A schematic block diagram of an electronic device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0012] In the following description, specific details such as specific system structures and technologies are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present disclosure. However, it should be clear to those skilled in the art that the present disclosure may be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to avoid obstructing the description of the present disclosure with unnecessary details.

[0013] In order to make the purpose, technical solutions and advantages of the present disclosure more clear, specific embodiments will be described below in conjunction with the accompanying drawings.

[0014] Please refer to Figure 1 , Figure 1 A schematic flow chart of a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas provided in one embodiment of the present disclosure, the method comprising: S101: Processing multiple groups of mixed gases to determine the fingerprint absorption peaks of each mine gas in the mixed gases.

[0015] In this embodiment, mine gas is the gas generated or released during coal mining, mainly including methane (CH4), ethane (C2H6), propane (C3H8), n-butane (n-C4H 10 ) and isobutane (i-C4H 10 ).

[0016] Before processing multiple groups of mixed gases, multiple groups of mixed gases must be obtained first. The mixed gas in this embodiment is a mixture of two mine gases, that is, a mixture of any two of the five gases mentioned above. Therefore, the mixed gas in this embodiment includes: a mixture of CH4 and C2H6, a mixture of CH4 and C3H8, a mixture of CH4 and n-C4H 10 Mixture of CH4 and i-C4H 10 mixture of C2H6 and C3H8, C2H6 and n-C4H 10 A mixture of C2H6 and i-C4H 10A mixture of C3H8 and n-C4H 10 A mixture of C3H8 and i-C4H 10 Mixture of n-C4H 10 and i-C4H 10 A mixture of.

[0017] Since the mixed gas contains two components of gas, each component has its own unique absorption peak characteristics, and these characteristic absorption peaks will overlap in the spectrum of the mixed gas. This embodiment can provide an important basis for the subsequent separation of overlapping spectral lines by determining the fingerprint absorption peaks of each mine gas. In addition, the fingerprint absorption peak is unique to each mine gas and has a high degree of recognition, which can help distinguish different gas components, thereby achieving the separation of overlapping spectral lines.

[0018] Therefore, after processing multiple groups of mixed gases, the fingerprint absorption peaks of each mine gas in the mixed gases can be determined, providing data basis for subsequent processing.

[0019] S102: Determine the fingerprint region absorption peak wave number interval of each mine gas based on the fingerprint region absorption peak of each mine gas.

[0020] The specific steps can be as follows: First, preliminarily divide the wave number intervals.

[0021] The fingerprint absorption peak data of each mine gas are sorted out to establish a mine gas fingerprint absorption peak database. The data in the database are preliminarily analyzed, and the possible wave number ranges of each mine gas are roughly divided according to the position of the absorption peak. For example, if the fingerprint absorption peak of a certain gas is found to always appear in a specific wave number range in multiple samples, the wave number range of the gas can be preliminarily determined.

[0022] Second, fine-tune the wave number range.

[0023] In order to improve the accuracy of the wave number interval, continue to collect more mine gas mixed samples for testing and continuously enrich the data in the database. Compare and analyze the newly added sample data with the existing data. If it is found that the gas absorption peak position in some samples is slightly offset, the range of the wave number interval needs to be re-evaluated.

[0024] This embodiment can use statistical analysis methods, such as calculating the average value, standard deviation, etc., to determine the center position and width of the wave number interval. For example, for a certain gas, the average wave number of the absorption peak in the fingerprint region of all samples is calculated as the center position, and then a reasonable wave number interval range is determined based on the standard deviation.

[0025] This embodiment adjusts the wave number interval through actual experimental verification. A specific mine gas can be added to a mixed gas of known composition to observe whether the position of its absorption peak is within the determined wave number interval. If there is a deviation, the wave number interval is further adjusted until the fingerprint absorption peak of the gas in various situations can be accurately covered.

[0026] Third, determine the final wave number range.

[0027] After continuous data collection, analysis and comparison, and experimental verification, the absorption peak wave number intervals of the fingerprint area of ​​each mine gas were finally determined. These wave number intervals will serve as an important basis for subsequent separation of overlapping spectra of mixed gases and determination of mine gas categories.

[0028] For example, in the infrared spectrum wave number range of 1500cm -1 -400cm -1 The infrared spectrum fingerprint absorption peaks of any two gases x and y in the alkane gas (i.e., mine gas) are found in the fingerprint area. The infrared spectrum fingerprint absorption peak wavenumber interval of gas x is set to [a, b], and the infrared spectrum fingerprint absorption peak wavenumber interval of gas y is set to [c, d]. The two gases have independent fingerprint absorption peaks in the infrared spectrum fingerprint area, and the wavenumber intervals [a, b] and [c, d] do not overlap. The absorption peak wavenumber intervals of each mine gas in the measured mixed gas in the infrared spectrum fingerprint area are found.

[0029] After the multiple groups of mixed gases go through steps S101 and S102, the absorption peak wave number intervals of the fingerprint regions of the various mine gases can be obtained, as shown in Table 1.

[0030] Table 1 The absorption peak wave number range of fingerprint region of each mine gas

[0031] S103: Separating overlapping spectral lines of multiple groups of mixed gases based on the absorption peak wave number interval of the fingerprint region of each mine gas to determine the category of each mine gas.

[0032] In this embodiment, when performing spectral analysis on multiple groups of mixed gases, due to the presence of multiple gases, their absorption spectra will overlap with each other to form complex mixed spectra. At this time, the known absorption peak wave number intervals of the fingerprint region of each mine gas are used to separate the overlapping spectra.

[0033] The specific methods can be: First, the spectrum of the mixed gas is analyzed section by section to determine the absorption in a specific wavenumber interval. If an obvious absorption peak appears in a certain wavenumber interval, and this wavenumber interval matches the known absorption peak wavenumber interval of the fingerprint region of a certain mine gas, then it can be preliminarily determined that the mixed gas contains this mine gas.

[0034] Finally, this embodiment can accurately determine the type of mine gas present in the mixed gas by separating the overlapping spectral lines of the mixed gas and combining the absorption peak wave number intervals of the fingerprint region of each gas.

[0035] For example, if in the spectrum of a mixed gas, absorption peaks corresponding to methane and carbon dioxide are separated within a specific wavenumber range, then it can be determined that the mixed gas contains two types of mine gases, methane and carbon dioxide.

[0036] It can be concluded from the above that the present embodiment can accurately identify and determine the fingerprint absorption peak of each mine gas, and use the fingerprint absorption peak wave number interval as the separation basis, which effectively solves the problem of overlapping characteristic absorption peaks of mine gas and improves the accuracy and reliability of mine gas identification. The present embodiment not only helps to quickly determine the type of gas in the mine, but also plays an important role in mine safety monitoring, gas leakage detection, etc. Therefore, the present embodiment can improve the accuracy of qualitative and quantitative analysis of mine gas and realize the separation of overlapping spectral lines of characteristic absorption peaks.

[0037] In one embodiment of the present disclosure, a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas further includes: Determine the absorption peak area of ​​the fingerprint region of each mine gas based on the absorption peak wave number interval of the fingerprint region of each mine gas; The concentration of each mine gas is determined based on the absorption peak area of ​​the fingerprint region of each mine gas.

[0038] In this embodiment, the specific wavenumber range corresponding to each gas is accurately divided in the spectrum of the mixed gas by using the determined absorption peak wavenumber interval of the fingerprint region of each mine gas.

[0039] This embodiment can locate the position and shape of the absorption peak of the fingerprint region of the mine gas in each wave number interval through a data analysis algorithm, such as a peak detection algorithm.

[0040] For a determined absorption peak in the fingerprint region, its area can be calculated by integration. For example, in infrared spectroscopy, the absorption curve in a specific wave number interval is numerically integrated to obtain the area value corresponding to the absorption peak.

[0041] Exemplarily, the fingerprint absorption peak curve of each mine gas is integrated in the corresponding wave number interval to obtain the fingerprint absorption peak of each mine gas.

[0042] Assuming that the absorption peak wave number interval of a certain alkane gas collected is [a, b], the absorption peak curve function is y=f(x), and the peak area of ​​the absorption peak is S, the peak area integral formula of the polar gas absorption peak can be obtained:

[0043] This embodiment establishes the relationship between the absorption peak area of ​​the fingerprint region of each mine gas and the gas concentration through experiments. For example, a series of single mine gas samples with known concentrations can be prepared, and the absorption peak area of ​​the fingerprint region can be measured to obtain a corresponding relationship curve or mathematical model between the concentration and the area.

[0044] After the absorption peak area of ​​the fingerprint region of the mine gas in the mixed gas is determined, the concentration of the gas is calculated by substituting the area value according to the established relationship between concentration and area.

[0045] If there are overlapping spectral lines of multiple mine gases, it is necessary to first separate the fingerprint absorption peaks of each mine gas, calculate their areas respectively, and then determine their respective concentrations.

[0046] It can be concluded from the above that this embodiment gradually determines the absorption peak wavenumber interval and the absorption peak area of ​​the fingerprint zone of the mine gas, and finally calculates the concentration of each mine gas, thereby providing accurate data support for the monitoring and safety management of the mine gas.

[0047] In one embodiment of the present disclosure, before processing the multiple groups of mixed gases, the method further includes: A plurality of groups of mixed gases are obtained; wherein the mixed gas is a combination of two mine gases.

[0048] In one embodiment of the present disclosure, the mine gas includes CH4, C2H6, C3H8, n-C4H 10 and i-C4H 10 One of them.

[0049] In this embodiment, since the mixed gas is a combination of two mine gases, it is necessary to select areas where the combination may appear for sampling. For example, sampling may be performed at different mining working faces in the mine, corners with poor ventilation, and near equipment where gas leakage may occur.

[0050] In order to ensure the representativeness and reliability of the samples, multi-point sampling and regular sampling are required. Multi-point sampling can cover different locations and environmental conditions, while regular sampling can capture the changes in gas composition over time.

[0051] Characteristics of common mine gases: CH4 is the most common combustible gas in mines. It is colorless, odorless, and explosive. It is usually produced by the decomposition of organic matter in coal seams and easily spreads in mine ventilation systems.

[0052] C2H6, C3H8, n-C4H 10 and i-C4H 10They are all alkane gases, which usually exist in trace amounts in mines. However, their presence may be related to oil and gas resources in the coal seams, or may be caused by leakage of underground equipment.

[0053] The alkane gas selected in the present disclosure is at 1500cm -1 -400cm -1 The fingerprint spectrum is present in all wavenumber regions, so the fingerprint wavenumber range of mine alkane gas is limited to 1500 cm -1 -400cm -1 .

[0054] It can be concluded that the five types of mine gases are representative and important in the mine environment. CH4 is the main focus because of its high explosion hazard, while the presence of other alkane gases may affect the overall composition and properties of mine gas and have a potential impact on mine safety. Understanding the composition and concentration of these specific mine gases in the mixed gas is crucial to preventing accidents such as explosions and poisoning.

[0055] In one embodiment of the present disclosure, before obtaining multiple groups of mixed gases, the method further includes: The intrinsic wavenumber range of the mine gas is determined based on the spectrum of the mine gas.

[0056] In this embodiment, a Fourier transform infrared spectrometer can be used to detect CH4, C2H6, C3H8, n-C4H 10 and i-C4H 10 The position and range of the natural wavenumbers.

[0057] The spectrum of mine gas reflects its molecular structure and chemical bond vibration, rotation and other information. Different mine gases will absorb or emit in a specific wave number range due to differences in their molecular structure (such as atomic composition, chemical bond type and bond length, etc.). For example, in infrared spectroscopy, the vibration of molecules will cause the absorption of infrared light, and different chemical bonds have different vibration frequencies, corresponding to different wave numbers. Infrared spectroscopy (such as Fourier transform infrared spectroscopy) is mainly based on the absorption of infrared light by molecular vibration and rotation.

[0058] First, a pure single mine gas sample needs to be collected. For each mine gas, such as CH4, C2H6, C3H8, n-C4H 10 and i-C4H 10 , spectral measurements must be performed separately.

[0059] Taking infrared spectroscopy as an example, pure methane gas is introduced into the sample cell of the infrared spectrometer, infrared light is passed through the gas sample, and the change of light intensity with wave number is recorded to obtain the infrared spectrum of methane. In the spectrum, the wave number position corresponding to the characteristic absorption peaks such as stretching vibration and bending vibration of the CH bond in the methane molecule can be observed.

[0060] The same operation is performed for other mine gases. Then, through detailed analysis of the spectrum of each mine gas, the wave number range corresponding to the characteristic absorption peak of each gas is determined. This range is the inherent wave number range of the mine gas.

[0061] For example, CH4 has a specific CH bond vibration absorption peak in the infrared spectrum, and its wave number range is about 2800-3000cm -1 (This range may vary slightly due to factors such as instrument accuracy). This range is part of the inherent wavenumber range of CH4 in the infrared spectrum. By comprehensively determining multiple characteristic absorption peaks, the inherent wavenumber range of CH4 can be completely defined.

[0062] From the above, it can be concluded that the inherent wave number range plays a key role in the subsequent analysis of multiple groups of mixed gases. When facing a mixed gas, by comparing it with the determined inherent wave number range, the type of mine gas that may be contained in the mixed gas can be quickly identified.

[0063] For example, if a certain wavenumber range is found to match the previously determined inherent wavenumber range of CH4 in the spectrum analysis of the mixed gas, it can be preliminarily determined that the mixed gas contains CH4. This provides an important reference for further analyzing the composition of the mixed gas and separating the overlapping spectral lines of characteristic absorption peaks, which helps to improve the accuracy and efficiency of mine gas analysis.

[0064] In one embodiment of the present disclosure, a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas further includes: Multiple groups of mixed gases are processed to determine the infrared spectrum characteristic absorption peaks of each mine gas in the mixed gases.

[0065] In this embodiment, for a mixed gas containing two mine gases at the same time, the infrared spectral characteristic absorption peaks of the two mine gases overlap seriously, that is, the infrared spectral characteristic absorption peak wavenumber intervals of the two mine gases overlap seriously, which causes great difficulties for the qualitative and quantitative analysis of the infrared spectra of the two mixed gases, and it is impossible to achieve qualitative and quantitative analysis of the infrared spectra of the two mixed gases.

[0066] After this step and steps S101 to S103, the present disclosure can obtain the overlapping spectral line separation results of each mine gas.

[0067] Figure 2 (a) is the characteristic absorption peak of CH4 and C2H6 infrared spectrum, Figure 2 (b) is the absorption peak of CH4 and C2H6 fingerprint region, Figure 2 (c) is the characteristic absorption peak of CH4 and C3H8 infrared spectrum. Figure 2 (d) is the absorption peak of CH4 and C3H8 fingerprint region, Figure 2 (e) CH4 and n-C4H 10 Infrared spectrum characteristic absorption peak, Figure 2 (f) is CH4 and n-C4H 10 Fingerprint region absorption peak, Figure 2 (g) is CH4 and i-C4H 10 Infrared spectrum characteristic absorption peak, Figure 2 (h) is CH4 and i-C4H 10 Fingerprint region absorption peak.

[0068] Figure 3 (a) is the characteristic absorption peak of C2H6 and C3H8 infrared spectrum, Figure 3 (b) is the absorption peak of C2H6 and C3H8 fingerprint region, Figure 3 (c) C2H6 and n-C4H 10 Infrared spectrum characteristic absorption peak, Figure 3 (d) is C2H6 and n-C4H 10 Fingerprint region absorption peak, Figure 3 (e) is C2H6 and i-C4H 10 Infrared spectrum characteristic absorption peak, Figure 3 (f) is C2H6 and i-C4H 10 Fingerprint region absorption peak.

[0069] Figure 4 (a) C3H8 and n-C4H 10 Infrared spectrum characteristic absorption peak, Figure 4 (b) C3H8 and n-C4H 10 Fingerprint region absorption peak, Figure 4 (c) C3H8 and i-C4H 10 Infrared spectrum characteristic absorption peak, Figure 4 (d) C3H8 and i-C4H 10 Fingerprint region absorption peak.

[0070] Figure 5 (a) C3H8 and i-C4H 10 Infrared spectrum characteristic absorption peak, Figure 5 (b) C3H8 and i-C4H 10 Fingerprint region absorption peak.

[0071] In one embodiment of the present disclosure, multiple groups of mixed gases are processed to determine the fingerprint absorption peak of each mine gas in the mixed gas, including: Determine the fingerprint area locations of multiple gas mixtures; According to the fingerprint area positions of multiple groups of mixed gases, the fingerprint area absorption peaks of each mine gas in the mixed gas are determined.

[0072] In this embodiment, spectral detection is performed on multiple groups of mixed gases, such as infrared spectroscopy, which can provide information about the molecular structure and chemical bonds in the mixed gases.

[0073] In the obtained spectrum, observe the absorption, scattering or emission characteristics in different wavenumbers or wavelength ranges. Since different mine gases have unique absorption or emission performance in specific wavenumber regions, these regions are called fingerprint regions.

[0074] The known standard spectrum of mine gas and the previously determined inherent wave number range of mine gas are used as references to determine the fingerprint area of ​​the mixed gas. If the spectral characteristics of the mixed gas match the characteristics of the known mine gas within a certain wave number range, then this wave number range is likely to be the fingerprint area of ​​the mixed gas.

[0075] Within the determined fingerprint region, the detailed features of the spectrum are further analyzed to find absorption peaks with specific shapes, intensities, and widths, which may correspond to different mine gases.

[0076] For example, some sharp absorption peaks may be caused by the vibration of specific chemical bonds in certain gas molecules, while broader absorption peaks may be due to complex vibration modes of molecules or intermolecular interactions.

[0077] The absorption peak of the mixed gas in the fingerprint area is compared with the standard absorption peak of a single pure mine gas. By comparing the position, shape, intensity and other characteristics of the absorption peak, the type of mine gas that may exist in the mixed gas can be preliminarily determined.

[0078] It can be concluded from the above that this embodiment can process multiple groups of mixed gases and determine the fingerprint absorption peaks of each mine gas in the mixed gases, thus providing an important basis for subsequent mine gas analysis and safety management.

[0079] Corresponding to the above embodiment, a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas, Figure 6 This is a structural block diagram of a system for separating overlapping spectral lines of characteristic absorption peaks of mine gas provided by an embodiment of the present disclosure. For ease of explanation, only the parts related to the embodiment of the present disclosure are shown. Figure 6The system 20 for separating overlapping spectral lines of characteristic absorption peaks of mine gas comprises: a mixed gas processing module 21 , a wave number interval determination module 22 and an overlapping spectral line separation module 23 .

[0080] The mixed gas processing module 21 is used to process multiple groups of mixed gases and determine the fingerprint absorption peaks of each mine gas in the mixed gases; A wave number interval determination module 22, for determining the wave number interval of the fingerprint absorption peak of each mine gas based on the fingerprint absorption peak of each mine gas; The overlapping spectrum line separation module 23 is used to separate the overlapping spectrum lines of multiple groups of mixed gases based on the absorption peak wave number interval of the fingerprint area of ​​each mine gas, so as to determine the category of each mine gas.

[0081] In one embodiment of the present disclosure, a system 20 for separating overlapping spectral lines of characteristic absorption peaks of mine gas further includes: a concentration determination module; A concentration determination module, used to determine the absorption peak area of ​​the fingerprint region of each mine gas based on the absorption peak wave number interval of the fingerprint region of each mine gas; The concentration of each mine gas is determined based on the absorption peak area of ​​the fingerprint region of each mine gas.

[0082] In one embodiment of the present disclosure, a system 20 for separating overlapping spectral lines of characteristic absorption peaks of mine gas further includes: a mixed gas acquisition module; The mixed gas acquisition module is used to acquire multiple groups of mixed gases; wherein the mixed gas is a combination of two mine gases.

[0083] In one embodiment of the present disclosure, the mine gas includes CH4, C2H6, C3H8, n-C4H 10 and i-C4H 10 One of them.

[0084] In one embodiment of the present disclosure, a system 20 for separating overlapping spectral lines of characteristic absorption peaks of mine gas further includes: an inherent wave number range determination module; The intrinsic wave number range determination module is used to determine the intrinsic wave number range of the mine gas based on the spectrum of the mine gas.

[0085] In one embodiment of the present disclosure, a system 20 for separating overlapping spectral lines of characteristic absorption peaks of mine gas further includes: a characteristic absorption peak determination module; The characteristic absorption peak determination module is used to process multiple groups of mixed gases and determine the infrared spectrum characteristic absorption peaks of each mine gas in the mixed gases.

[0086] In one embodiment of the present disclosure, the mixed gas processing module 21 is specifically used for: Determine the fingerprint area locations of multiple gas mixtures; According to the fingerprint area positions of multiple groups of mixed gases, the fingerprint area absorption peaks of each mine gas in the mixed gas are determined.

[0087] See also Figure 7 , Figure 7 A schematic block diagram of an electronic device provided by an embodiment of the present disclosure. Figure 7 The electronic device 300 in the embodiment shown may include: one or more processors 301, one or more input devices 302, one or more output devices 303 and one or more memories 304. The processors 301, input devices 302, output devices 303 and memories 304 communicate with each other via a communication bus 305. The memory 304 is used to store computer programs, which include program instructions. The processor 301 is used to execute the program instructions stored in the memory 304. The processor 301 is configured to call the program instructions to execute the functions of each module / unit in the above-mentioned system embodiments, such as Figure 6 The functions of modules 21 to 22 are shown.

[0088] It should be understood that in the embodiment of the present disclosure, the processor 301 may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0089] The input device 302 may include a touch panel, a fingerprint collection sensor (for collecting the user's fingerprint information and fingerprint direction information), a microphone, etc., and the output device 303 may include a display (LCD, etc.), a speaker, etc.

[0090] The memory 304 may include a read-only memory and a random access memory, and provide instructions and data to the processor 301. A portion of the memory 304 may also include a non-volatile random access memory. For example, the memory 304 may also store information about the device type.

[0091] In a specific implementation, the processor 301, input device 302, and output device 303 described in the embodiments of the present disclosure can execute the implementation methods described in the first and second embodiments of a method for separating overlapping spectral lines of characteristic absorption peaks of mine gas provided in the embodiments of the present disclosure, and can also execute the implementation methods of the electronic device described in the embodiments of the present disclosure, which will not be repeated here.

[0092] In another embodiment of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores a computer program, wherein the computer program includes program instructions, and when the program instructions are executed by the processor, all or part of the processes in the above-mentioned embodiment method are implemented, and the computer program can also be completed by instructing the relevant hardware through the computer program. The computer program can be stored in a computer-readable storage medium, and when the computer program is executed by the processor, the steps of each of the above-mentioned method embodiments can be implemented. Among them, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form, etc. The computer-readable medium can include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium, etc.

[0093] The computer-readable storage medium may be an internal storage unit of the electronic device of any of the aforementioned embodiments, such as a hard disk or memory of the electronic device. The computer-readable storage medium may also be an external storage device of the electronic device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card, a flash card (Flash Card), etc. equipped on the electronic device. Furthermore, the computer-readable storage medium may also include both an internal storage unit of the electronic device and an external storage device. The computer-readable storage medium is used to store computer programs and other programs and data required by the electronic device. The computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

[0094] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this disclosure.

[0095] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the electronic devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0096] In the several embodiments provided in the present application, it should be understood that the disclosed electronic devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces or units, or it can be an electrical, mechanical or other form of connection.

[0097] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiments of the present disclosure.

[0098] In addition, each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0099] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present disclosure, and these modifications or replacements should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A method for separating overlapping spectral lines of characteristic absorption peaks of mine gas, characterized in that: include: Process multiple groups of mixed gases to determine the fingerprint absorption peaks of each mine gas in the mixed gases; Determine the fingerprint region absorption peak wave number interval of each mine gas based on the fingerprint region absorption peak of each mine gas; The overlapping spectral lines of the plurality of groups of mixed gases are separated based on the absorption peak wave number intervals of the fingerprint regions of the respective mine gases to determine the categories of the respective mine gases.

2. A method for separating overlapping spectral lines of characteristic absorption peaks of mine gas according to claim 1, characterized in that: Also includes: Determining the fingerprint absorption peak area of ​​each mine gas based on the fingerprint absorption peak wave number interval of each mine gas; The concentration of each mine gas is determined based on the absorption peak area of ​​the fingerprint region of each mine gas.

3. The method for separating overlapping spectral lines of characteristic absorption peaks of mine gas according to claim 1, characterized in that: Before the processing of the plurality of mixed gases, the method further comprises: A plurality of groups of mixed gases are obtained; wherein the mixed gas is a combination of two mine gases.

4. A method for separating overlapping spectral lines of characteristic absorption peaks of mine gas according to claim 3, characterized in that: The mine gas includes CH4, C2H6, C3H8, n-C4H 10 and i-C4H 10 One of them.

5. A method for separating overlapping spectral lines of characteristic absorption peaks of mine gas according to claim 4, characterized in that: Before obtaining the multiple groups of mixed gases, the method further includes: An intrinsic wavenumber range of the mine gas is determined based on the spectrum of the mine gas.

6. The method for separating overlapping spectral lines of characteristic absorption peaks of mine gas according to claim 1, characterized in that: Also includes: The plurality of groups of mixed gases are processed to determine the characteristic absorption peaks of the infrared spectrum of each mine gas in the mixed gases.

7. The method for separating overlapping spectral lines of characteristic absorption peaks of mine gas according to claim 1, characterized in that: The processing of the plurality of groups of mixed gases to determine the fingerprint absorption peak of each mine gas in the mixed gases includes: Determining fingerprint area locations of the plurality of groups of mixed gases; According to the fingerprint region positions of the plurality of groups of mixed gases, the fingerprint region absorption peaks of the respective mine gases in the mixed gases are determined.

8. A system for separating overlapping spectral lines of characteristic absorption peaks of mine gas, characterized in that: include: A mixed gas processing module is used to process multiple groups of mixed gases and determine the fingerprint absorption peaks of each mine gas in the mixed gases; A wave number interval determination module, used to determine the fingerprint region absorption peak wave number interval of each mine gas based on the fingerprint region absorption peak of each mine gas; The overlapping spectral line separation module is used to separate the overlapping spectral lines of the multiple groups of mixed gases based on the fingerprint region absorption peak wave number interval of each mine gas to determine the category of each mine gas.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 7 are implemented.

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