A system device and method for spectroscopically co-detecting gaseous substances

Abstract

The present invention belongs to the technical field of on-line detection of gaseous substances, and particularly relates to a system device and method for spectroscopically co-detecting gaseous substances. The system device for spectroscopically co-detecting gaseous substances has a simple structure, is modular, and has a relatively high degree of information integration, and can realize in-situ, rapid, comprehensive, and continuous qualitative and quantitative identification and detection. A system device for spectroscopically co-detecting gaseous substances includes: a pipeline; the spectroscopic co-detection structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module.

Description

Technical Field

[0001] The present invention belongs to the technical field of on-line detection of gaseous substances, and particularly relates to a system device and method for spectroscopically collaborative detection of gaseous substances. Background Art

[0002] With the utilization of technologies such as the Internet of Things, cloud computing, and big data by more and more production and processing enterprises, the construction of smart factories has formed a technical framework including Internet of Things technology, Internet of Things sensing technology, data analysis technology, business usage technology, and cloud computing technology, and finally realizes intelligent production required by modern society.

[0003] A smart factory means more network connections between factories and enterprises, realizes the sharing of resources and information through the Internet, thereby effectively improving the efficiency of all links in production and manufacturing and enhancing the overall competitiveness of enterprises; in addition, computing and intelligent technologies will be more widely used in all links of the production line to complete the optimization and personalization of production and manufacturing through artificial intelligence; finally, through continuously improving production technologies and production characteristics, it promotes a change in consumers' concepts, increases consumers' desire to purchase the products produced by the company, essentially changes consumers' consumption behaviors, and increases the turnover of enterprises.

[0004] Specifically, to ensure the production operation of a smart factory, it is necessary to start from the production workshop first. The production requirements of the production workshop should meet the above first stage, and there should be a full realization of product interconnection and information sharing mode; secondly, through an artificial intelligence management system, the production, product packaging, quality inspection, etc. in the workshop should be comprehensively supervised and improved. Through reasonable analysis and redistribution of production line resources, the resources can be utilized maximally. Finally, market big data should be collected, planned, and analyzed to obtain the most suitable product types for market demand and improve their increment and quality.

[0005] Among them, specifically for the detection of gaseous substances (finished products, semi-finished products), according to the different components, it can be refined into qualitative and quantitative detections of inorganic substances, organic substances (organic compounds), and microbial content. However, the inventor found during the research process that most of the existing detection methods can only achieve the detection of a certain specific component. For example, the detection methods for organic substances include gas chromatography, liquid chromatography, gas chromatography-mass spectrometry, infrared method, etc.; while the detection methods for inorganic substances include various chemical methods, atomic absorption method, inductively coupled plasma emission spectrometry, fluorescence spectrometry, hydride generation atomic absorption method, fluorescence method, catalytic polarography, selective ion electrode, volumetric method, potentiometric method, neutron activation analysis method, etc. In addition, most of the above detection methods have defects such as long monitoring period, complex pretreatment process, existence of secondary pollutants, and can only be carried out in a laboratory environment, which is not conducive to improving the detection efficiency of gaseous substances. Summary of the Invention

[0006] The present invention provides a system device and method for spectroscopically collaborative detection of gaseous substances. The system device for spectroscopically collaborative detection of gaseous substances has a simple structure, is modular, and has a relatively high degree of information integration. It can achieve in-situ, rapid, comprehensive, and continuous qualitative and quantitative identification and detection, and provides basic technical support for big data and artificial intelligence detection.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A system device for spectroscopically collaborative detection of gaseous substances, comprising:

[0009] A pipeline for transporting the gaseous substance to be detected;

[0010] A spectroscopic collaboration structure; the spectroscopic collaboration structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed from the side of the pipeline where the gas to be detected enters to the side where the gas exits.

[0011] Among them, the hyperspectral component includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module.

[0012] Further, the system device for spectroscopically collaborative detection of gaseous substances further includes: a laser-induced breakdown spectroscopy detection pipe section; the laser-induced breakdown spectroscopy detection pipe section is composed of an upper detection pipe section and a lower detection pipe section; among them, the size of the upper detection pipe section gradually decreases from top to bottom and is used to hermetically cover the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module in the laser-induced breakdown spectroscopy component; the lower detection pipe section is cylindrical, and an air inlet and an air outlet are provided on the lower detection pipe section; the air inlet faces the gas inlet direction of the pipeline for transporting the gaseous substance to be detected, and the air outlet faces the gas outlet direction of the pipeline for transporting the gaseous substance to be detected; an air inlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air inlet, and an air outlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air outlet; the major arcs of the air inlet control elliptical pipe column and the air outlet control elliptical pipe column respectively match the inner wall of the lower detection pipe section and are used to control the air intake volume of the air inlet and the air outlet volume of the air outlet.

[0013] Further, the air inlet control elliptical pipe column and the air outlet control elliptical pipe column are coaxially connected and driven by the same motor to achieve horizontal rotation.

[0014] Further, the system equipment for spectroscopically co-detecting gaseous substances further includes: a data acquisition, analysis, and overall control unit;

[0015] The data acquisition, analysis, and overall control unit has established data communication and interconnection relationships with the hyperspectral data acquisition and analysis module in the hyperspectral component, the terahertz time-domain spectroscopy data acquisition and analysis module in the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy data acquisition and analysis module in the laser-induced breakdown spectroscopy component, respectively.

[0016] Further, the hyperspectral imager is arranged directly above the pipeline, and forms a non-90° inclined angle with the pipeline.

[0017] Further, the terahertz time-domain spectroscopy emitter and the terahertz time-domain spectroscopy receiver are arranged oppositely; the terahertz time-domain spectroscopy emitter is arranged directly above the pipeline, and the terahertz time-domain spectroscopy receiver is arranged directly below the pipeline, and both the terahertz time-domain spectroscopy emitter and the terahertz time-domain spectroscopy receiver form a non-90° inclined angle with the pipeline.

[0018] Further, both the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module are arranged directly above the pipeline; the laser-induced breakdown spectroscopy emission module forms a 90° vertical angle with the pipeline, and the laser-induced breakdown spectroscopy reception module forms a non-90° inclined angle with the pipeline.

[0019] On the other hand, the present invention also discloses a method for spectroscopically co-detecting gaseous substances. The gaseous substance data obtained by parsing the hyperspectral component is defined as HEn, HYn, HWn; where HEn represents the content of the nth inorganic substance obtained by parsing the hyperspectral component, HYn represents the content of the nth organic substance obtained by parsing the hyperspectral component, and HWn represents the content of the nth microorganism obtained by parsing the hyperspectral component;

[0020] The gaseous substance data obtained by parsing the terahertz time-domain spectroscopy component is defined as TEn, TYn, TWn; where TEn represents the content of the nth inorganic substance obtained by parsing the terahertz time-domain spectroscopy component, TYn represents the content of the nth organic substance obtained by parsing the terahertz time-domain spectroscopy component, and TWn represents the content of the nth microorganism obtained by parsing the terahertz time-domain spectroscopy component;

[0021] The gaseous substance data obtained by parsing the laser-induced breakdown spectroscopy component is defined as LEn, LYn, LWn; where LEn represents the content of the nth inorganic substance obtained by parsing the laser-induced breakdown spectroscopy component, LYn represents the content of the nth organic substance obtained by parsing the laser-induced breakdown spectroscopy component, and LWn represents the content of the nth microorganism obtained by parsing the laser-induced breakdown spectroscopy component;

[0022] The output rules of the spectral collaborative gas-phase substance detection method are as follows: during the detection of organic substances and microorganisms, when TYn > HYn, TYn > LWn, or TYn > HYn, TYn < LWn, or TYn < HYn, TYn > LWn, TYn is output; when TYn < HYn, TYn < LWn, TYn is output when the relative deviation < 50%, and (TYn + HYn + LWn) / 3 is output when the relative deviation > 50%; during the detection of inorganic substances, LEn is output.

[0023] The present invention provides a system device and method for spectral collaborative detection of gas-phase substances. The system device for spectral collaborative detection of gas-phase substances includes a pipeline and a spectral collaborative structure; among them, the spectral collaborative structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component. The system device for spectral collaborative detection of gas-phase substances with the above structural features has a simple structure, is modular, and has a high degree of information integration. It can achieve in-situ, rapid, comprehensive, and continuous qualitative and quantitative identification and detection, and provides basic technical support for big data and artificial intelligence detection. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the system device for spectral collaborative detection of gas-phase substances of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the air inlet and the air inlet control elliptical pipe column of the present invention;

[0026] Figure 3 It is a schematic structural diagram of the air outlet and the air outlet control elliptical pipe column of the present invention;

[0027] Reference numerals: 1, pipeline; 2, hyperspectral imager; 3, terahertz time-domain spectroscopy emitter; 4, terahertz time-domain spectroscopy receiver; 5, laser-induced breakdown spectroscopy emission module; 6, laser-induced breakdown spectroscopy reception module; 7, upper detection pipe section; 8, motor; 9, air outlet control elliptical pipe column; 10, air inlet control elliptical pipe column; 11, gas-phase substance; 12, lower detection pipe section; 13, air inlet; 14, air outlet; 15, hyperspectral data acquisition and analysis module; 16, terahertz time-domain spectroscopy data acquisition and analysis module; 17, laser-induced breakdown spectroscopy data acquisition and analysis module; 18, data acquisition and analysis master control unit; A, gas-phase substance transportation direction. Detailed Embodiments

[0028] The present invention provides a system device and method for spectral collaborative detection of gas-phase substances. The system device for spectral collaborative detection of gas-phase substances has a simple structure, is modular, and has a high degree of information integration. It can achieve in-situ, rapid, comprehensive, and continuous qualitative and quantitative identification and detection, and provides basic technical support for big data and artificial intelligence detection. Example 1

[0029] The present invention provides a system and equipment for spectroscopically collaborative detection of gaseous substances, as Figure 1 shown, which includes a pipeline and a spectroscopic collaboration structure. Among them, the pipeline is used to transport the gaseous substances to be detected; and the spectroscopic collaboration structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed from the side of the pipeline intake direction to the side of the pipeline outlet direction. It should be noted that hyperspectral has significant advantages in the identification of substances; terahertz time-domain spectroscopy can mainly complete the detection of organic substances in the natural environment, especially having significant advantages in distinguishing macromolecular groups; while laser-induced breakdown spectroscopy (LIBS) has significant advantages in the detection of inorganic substances, especially the detection of metal inorganic substances.

[0030] Furthermore, the hyperspectral component further includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module. Example 2

[0031] Example 2 includes the complete content of Example 1, which is specifically as follows:

[0032] The present invention provides a system and equipment for spectroscopically collaborative detection of gaseous substances, as Figure 1 shown, which includes a pipeline and a spectroscopic collaboration structure. Among them, the pipeline is used to transport the gaseous substances to be detected; and the spectroscopic collaboration structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed from the side of the pipeline intake direction to the side of the pipeline outlet direction. It should be noted that hyperspectral has significant advantages in the identification of substances; terahertz time-domain spectroscopy can mainly complete the detection of organic substances in the natural environment, especially having significant advantages in distinguishing macromolecular groups; while laser-induced breakdown spectroscopy (LIBS) has significant advantages in the detection of inorganic substances, especially the detection of metal inorganic substances.

[0033] Further, the hyperspectral component further includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module.

[0034] Based on Embodiment 1, Embodiment 2 further records a laser-induced breakdown spectroscopy detection pipe section. As Figures 1 - 3 shown, the laser-induced breakdown spectroscopy detection pipe section is preferably perpendicular to the pipeline and is specifically composed of an upper detection pipe section and a lower detection pipe section; among them, the size of the upper detection pipe section gradually decreases from top to bottom and is overall in a horn shape, so as to hermetically wrap the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module in the laser-induced breakdown spectroscopy component. The lower detection pipe section is in a cylindrical shape, and an air inlet and an air outlet are respectively arranged on the lower detection pipe section from bottom to top; among them, the air inlet faces the air inlet direction of the pipeline for transporting the gas to be detected, and the air outlet faces the air outlet direction of the pipeline for transporting the gas to be detected. And, an air inlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air inlet, and an air outlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air outlet. It should be noted that the major arcs of the air inlet control elliptical pipe column and the air outlet control elliptical pipe column respectively match the inner wall of the lower detection pipe section, and are used to control the air intake volume of the air inlet and the air outlet volume of the air outlet. Embodiment 3

[0035] Embodiment 3 includes the complete content of Embodiment 2, which is specifically as follows:

[0036] The present invention provides a system device for spectroscopically co-detecting gas substances, as Figure 1 shown, including a pipeline and a spectroscopic cooperation structure. Among them, the pipeline is used to transport the gas to be detected; and the spectroscopic cooperation structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed along the direction from the side of the pipeline where the gas enters to the side where the gas exits. It should be noted that hyperspectral has significant advantages in the identification of substances; terahertz time-domain spectroscopy can mainly complete the detection of organic substances in the natural environment, especially has significant advantages in distinguishing macromolecular groups; and laser-induced breakdown spectroscopy (LIBS) has significant advantages in the detection of inorganic substances, especially the detection of metal inorganic substances.

[0037] Further, the hyperspectral component includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module.

[0038] And a laser-induced breakdown spectroscopy detection pipe section. As Figures 1 - 3 shown, the laser-induced breakdown spectroscopy detection pipe section is preferably perpendicular to the pipeline and is specifically composed of an upper detection pipe section and a lower detection pipe section; among them, the size of the upper detection pipe section gradually decreases from top to bottom, and the whole is in a horn shape, so as to seal and cover the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module in the laser-induced breakdown spectroscopy component. The lower detection pipe section is in a cylindrical shape, and an air inlet and an air outlet are respectively arranged on the lower detection pipe section from bottom to top; among them, the air inlet faces the air inlet direction of the pipeline for transporting the gas to be detected, and the air outlet faces the air outlet direction of the pipeline for transporting the gas to be detected. And, an air intake control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air inlet, and an air outlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air outlet. It should be noted that the major arc of the air intake control elliptical pipe column and the major arc of the air outlet control elliptical pipe column respectively match the inner wall of the lower detection pipe section, and are used to control the air intake volume of the air inlet and the air outlet volume of the air outlet.

[0039] In addition, on the basis of Embodiment 2, Embodiment 3 also records the following content: The air intake control elliptical pipe column and the air outlet control elliptical pipe column are coaxially connected and driven by the same motor. Through the coaxial drive of the air intake control elliptical pipe column and the air outlet control elliptical pipe column by the motor, the air intake control elliptical pipe column and the air outlet control elliptical pipe column can rotate horizontally, so as to further adjust the air intake volume of the air inlet and the air outlet volume of the air outlet. Embodiment 4

[0040] Embodiment 4 includes the complete content of Embodiment 2, specifically as follows:

[0041] The present invention provides a system device for spectroscopically co-detecting gaseous substances, as Figure 1As shown in the figure, it includes a pipeline and a spectral cooperation structure. Among them, the pipeline is used to transport the gas-phase substance to be detected; and the spectral cooperation structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed from the side of the pipeline intake direction to the side of the pipeline outlet direction. It should be noted that hyperspectral has significant advantages in the identification of substances; terahertz time-domain spectroscopy can mainly complete the detection of organic substances in the natural environment, especially has significant advantages in distinguishing macromolecular groups; and laser-induced breakdown spectroscopy (LIBS) has significant advantages in the detection of inorganic substances, especially the detection of metal inorganic substances.

[0042] Furthermore, the hyperspectral component further includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module.

[0043] And a laser-induced breakdown spectroscopy detection pipe section. As Figure 1 shown, this laser-induced breakdown spectroscopy detection pipe section is preferably perpendicular to the pipeline and is specifically composed of an upper detection pipe section and a lower detection pipe section; among them, the size of the upper detection pipe section gradually decreases from top to bottom, and the whole is in a horn shape, so as to seal and wrap the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module in the laser-induced breakdown spectroscopy component. The lower detection pipe section is in a cylindrical shape, and an air inlet and an air outlet are respectively arranged on the lower detection pipe section from bottom to top; among them, the air inlet faces the pipeline intake direction for transporting the gas-phase substance to be detected, and the air outlet faces the pipeline outlet direction for transporting the gas-phase substance to be detected. And, an air intake control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air inlet, and an air outlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air outlet. It should be noted that the major arcs of the air intake control elliptical pipe column and the air outlet control elliptical pipe column respectively match the inner wall of the lower detection pipe section, and are used to control the air intake volume of the air inlet and the air outlet volume of the air outlet.

[0044] In addition, on the basis of Embodiment 2, Embodiment 4 also records a data acquisition and analysis master control unit included in the system equipment for spectroscopically cooperative detection of gas-phase substances. Specifically, as Figure 1 shown, this data acquisition and analysis master control unit respectively establishes a data communication and interconnection relationship with the hyperspectral data acquisition and analysis module in the hyperspectral component, the terahertz time-domain spectroscopy data acquisition and analysis module in the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy data acquisition and analysis module in the laser-induced breakdown spectroscopy component.

[0045] It should be added that the working process of the system equipment for spectroscopically collaborative detection of gaseous substances is that the hyperspectral component, terahertz time-domain spectroscopy component, and laser-induced breakdown spectroscopy component sequentially and continuously scan. For example: The front end of the gaseous material first enters the detection area of the hyperspectral component, and the hyperspectral component starts to detect it, collecting the hyperspectral spectrogram of the gaseous material. The hyperspectral data acquisition and analysis module compares it with the spectrograms in the spectral library to analyze and determine the types and contents of organic substances, inorganic substances, and microorganisms contained in the gaseous material. At the moment of t + 3s (such as 3 seconds), this section of the gaseous material leaves the detection area of the hyperspectral component. At this time, the types and contents of the items to be detected are sent by the hyperspectral data acquisition and analysis module to the data acquisition and analysis master control unit. After the moment of t + 3s, the above content is repeated for the gaseous material.

[0046] Then, the front end of the gaseous material enters the detection area of the terahertz time-domain spectroscopy component. The terahertz time-domain spectroscopy component scans back and forth, completing the acquisition of the terahertz time-domain spectrogram of the gaseous material within 3 seconds. The terahertz time-domain spectroscopy data acquisition and analysis module compares it with the spectrograms in the spectral library to analyze and determine the types and contents of organic substances, inorganic substances, and microorganisms contained in the gaseous material. At this time, the types and contents of the items to be detected are sent by the terahertz time-domain spectroscopy data acquisition and analysis module to the data acquisition and analysis master control unit. And after 3 seconds, the above content is repeated for the gaseous material.

[0047] Finally, the front end of the gaseous material enters the laser-induced breakdown spectroscopy detection pipe section, and the laser-induced breakdown spectroscopy component detects the gaseous material. This detection process is similar to the detection process of the aforementioned terahertz time-domain spectroscopy component, and will not be elaborated here. Example Five

[0048] Example Five includes the complete content of Example Two, which is specifically as follows:

[0049] The present invention provides a system equipment for spectroscopically collaborative detection of gaseous substances, as Figure 1 shown, including a pipeline and a spectroscopic collaboration structure. Among them, the pipeline is used to transport the gaseous substances to be detected; and the spectroscopic collaboration structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed along the direction from the gas inlet side to the gas outlet side of the pipeline. It should be noted that hyperspectral has significant advantages in the identification of substances; terahertz time-domain spectroscopy can mainly complete the detection of organic substances in the natural environment, especially having significant advantages in distinguishing macromolecular groups; and laser-induced breakdown spectroscopy (LIBS) has significant advantages in the detection of inorganic substances, especially the detection of metal inorganic substances.

[0050] Further, the hyperspectral component includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module.

[0051] And a laser-induced breakdown spectroscopy detection pipe section. As Figure 1 shown, the laser-induced breakdown spectroscopy detection pipe section is preferably perpendicular to the pipeline and is specifically composed of an upper detection pipe section and a lower detection pipe section; among them, the size of the upper detection pipe section gradually decreases from top to bottom and is overall in a horn shape, so as to seal and cover the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module in the laser-induced breakdown spectroscopy component. The lower detection pipe section is in a cylindrical shape, and an air inlet and an air outlet are respectively arranged on the lower detection pipe section from bottom to top; among them, the air inlet faces the air inlet direction of the pipeline for transporting the gas to be detected, and the air outlet faces the air outlet direction of the pipeline for transporting the gas to be detected. And, an air inlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air inlet, and an air outlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air outlet. It should be noted that the major arcs of the air inlet control elliptical pipe column and the air outlet control elliptical pipe column respectively match the inner wall of the lower detection pipe section, and are used to control the air intake volume of the air inlet and the air outlet volume of the air outlet.

[0052] On the basis of Embodiment 2, Embodiment 5 also records the following content:

[0053] The hyperspectral imager is arranged directly above the pipeline and forms a non-90° inclined angle with the pipeline; the terahertz time-domain spectroscopy emitter and the terahertz time-domain spectroscopy receiver are arranged oppositely; the terahertz time-domain spectroscopy emitter is arranged directly above the pipeline, the terahertz time-domain spectroscopy receiver is arranged directly below the pipeline, and both the terahertz time-domain spectroscopy emitter and the terahertz time-domain spectroscopy receiver form a non-90° inclined angle with the pipeline; the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module are both arranged directly above the pipeline; the laser-induced breakdown spectroscopy emission module forms a 90° vertical angle with the pipeline, and the laser-induced breakdown spectroscopy reception module forms a non-90° inclined angle with the pipeline. Embodiment 6

[0054] The present invention also provides a method for spectroscopically co-detecting gaseous substances, and this detection method is based on the operation of the aforementioned system equipment for spectroscopically co-detecting gaseous substances. Specifically, the gaseous substance data obtained by parsing the hyperspectral component are defined as HEn, HYn, and HWn; where HEn represents the content of the nth inorganic substance obtained by parsing the hyperspectral component, HYn represents the content of the nth organic substance obtained by parsing the hyperspectral component, and HWn represents the content of the nth microorganism obtained by parsing the hyperspectral component;

[0055] The gaseous substance data obtained by parsing the terahertz time-domain spectroscopy component are defined as TEn, TYn, and TWn; where TEn represents the content of the nth inorganic substance obtained by parsing the terahertz time-domain spectroscopy component, TYn represents the content of the nth organic substance obtained by parsing the terahertz time-domain spectroscopy component, and TWn represents the content of the nth microorganism obtained by parsing the terahertz time-domain spectroscopy component;

[0056] The gaseous substance data obtained by parsing the laser-induced breakdown spectroscopy component are defined as LEn, LYn, and LWn; where LEn represents the content of the nth inorganic substance obtained by parsing the laser-induced breakdown spectroscopy component, LYn represents the content of the nth organic substance obtained by parsing the laser-induced breakdown spectroscopy component, and LWn represents the content of the nth microorganism obtained by parsing the laser-induced breakdown spectroscopy component.

[0057] According to the different characteristics of the three detection methods of hyperspectrum, terahertz time-domain spectroscopy, and laser-induced breakdown spectroscopy, when qualitatively identifying gaseous substances, the types of organic substances and microorganisms are mainly based on the terahertz time-domain spectroscopy data, and the types of organic substances and microorganisms contained in the sample are quickly identified by combining the qualitative identification data of the hyperspectrum; while the types of inorganic substances are mainly based on the laser-induced breakdown spectroscopy data, and the types of inorganic substances contained in the sample are quickly identified by combining the qualitative identification data of the hyperspectrum. For the specific quantitative detection process (organic substances, microorganisms, inorganic substances), the output rule of the spectroscopically co-detecting gaseous substance detection method is: during the detection of organic substances and microorganisms, when TYn>HYn, TYn>LWn or TYn>HYn, TYn<LWn or TYn<HYn, TYn>LWn, output TYn; when TYn<HYn, TYn<LWn, and the relative deviation <50%, output TYn, and when the relative deviation >50%, output (TYn + HYn + LWn) / 3; during the detection of inorganic substances, output LEn.

[0058] It should be added that during the process of statistically analyzing the three spectral data, different colors are used for distinction. When discontinuous data appears in the laser-induced breakdown spectroscopy, the data of the part of the sample with missing data are replaced by the hyperspectral or terahertz time-domain spectroscopy data, mainly based on the data close to the laser-induced breakdown spectroscopy data, and combined with the output rules of the above data.

[0059] The present invention provides a system device and method for spectroscopically collaborative detection of gaseous substances. The system device for spectroscopically collaborative detection of gaseous substances includes a pipeline and a spectroscopic collaborative structure; wherein, the spectroscopic collaborative structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component. The system device for spectroscopically collaborative detection of gaseous substances with the above structural features has a simple structure, is modular, and has a relatively high degree of information integration, can realize in-situ, rapid, comprehensive, and continuous qualitative and quantitative identification and detection, and provides basic technical support for big data and artificial intelligence detection.

[0060] As mentioned above, the above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A system device for spectroscopically co-detecting gaseous substances, characterized in that, Comprising: A pipeline for transporting the gaseous substance to be detected; A spectral collaborative structure; the spectral collaborative structure includes a hyperspectral component, a terahertz time-domain spectroscopy component, and a laser-induced breakdown spectroscopy component; the hyperspectral component, the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy component are sequentially installed from the side of the pipeline intake direction to the side of the pipeline outlet direction; Among them, the hyperspectral component includes a hyperspectral imager and a hyperspectral data acquisition and analysis module; the terahertz time-domain spectroscopy component includes a terahertz time-domain spectroscopy emitter, a terahertz time-domain spectroscopy receiver, and a terahertz time-domain spectroscopy data acquisition and analysis module; the laser-induced breakdown spectroscopy component includes a laser-induced breakdown spectroscopy emission module, a laser-induced breakdown spectroscopy reception module, and a laser-induced breakdown spectroscopy data acquisition and analysis module; The system equipment for spectrally collaborative detection of gaseous substances further includes: a laser-induced breakdown spectroscopy detection pipe section; the laser-induced breakdown spectroscopy detection pipe section is composed of an upper detection pipe section and a lower detection pipe section; among them, the size of the upper detection pipe section gradually decreases from top to bottom, and is used to hermetically cover the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module in the laser-induced breakdown spectroscopy component; the lower detection pipe section is cylindrical, and an air inlet and an air outlet are provided on the lower detection pipe section, the air inlet faces the intake direction of the pipeline for transporting the gaseous substance to be detected, and the air outlet faces the outlet direction of the pipeline for transporting the gaseous substance to be detected; an intake control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air inlet, and an outlet control elliptical pipe column is installed inside the lower detection pipe section at the horizontal position of the air outlet. The major arcs of the intake control elliptical pipe column and the outlet control elliptical pipe column respectively match the inner wall of the lower detection pipe section, and are used to control the intake volume of the air inlet and the outlet volume of the air outlet; The intake control elliptical pipe column and the outlet control elliptical pipe column are coaxially connected and driven by the same motor to achieve rotation in the horizontal direction; The system equipment for spectrally collaborative detection of gaseous substances further includes: a data acquisition and analysis master control unit; The data acquisition and analysis master control unit respectively establishes a data communication and interconnection relationship with the hyperspectral data acquisition and analysis module in the hyperspectral component, the terahertz time-domain spectroscopy data acquisition and analysis module in the terahertz time-domain spectroscopy component, and the laser-induced breakdown spectroscopy data acquisition and analysis module in the laser-induced breakdown spectroscopy component.

2. The system device for spectroscopically co-detecting gaseous substances according to claim 1, characterized in that, The hyperspectral imager is arranged directly above the pipeline, and forms a non-90° inclined angle with the pipeline.

3. The system device for spectroscopically co-detecting gaseous substances according to claim 1, characterized in that, The terahertz time-domain spectroscopy emitter and the terahertz time-domain spectroscopy receiver are arranged opposite to each other; the terahertz time-domain spectroscopy emitter is arranged directly above the pipeline, the terahertz time-domain spectroscopy receiver is arranged directly below the pipeline, and both the terahertz time-domain spectroscopy emitter and the terahertz time-domain spectroscopy receiver form a non-90° inclined angle with the pipeline.

4. The system device for spectroscopically co-detecting gaseous substances according to claim 1, characterized in that, Both the laser-induced breakdown spectroscopy emission module and the laser-induced breakdown spectroscopy reception module are arranged directly above the pipeline; the laser-induced breakdown spectroscopy emission module forms a 90° vertical angle with the pipeline, and the laser-induced breakdown spectroscopy reception module forms a non-90° inclined angle with the pipeline.

5. A method for spectroscopically co-detecting gaseous substances, based on the system device for spectroscopically co-detecting gaseous substances described in any one of claims 1 to 4, characterized in that, Define the gas-phase substance data obtained by parsing the hyperspectral component as HEn, HYn, HWn; where HEn represents the content of the nth inorganic substance obtained by parsing the hyperspectral component, HYn represents the content of the nth organic substance obtained by parsing the hyperspectral component, and HWn represents the content of the nth microorganism obtained by parsing the hyperspectral component; Define the gas-phase substance data obtained by parsing the terahertz time-domain spectroscopy component as TEn, TYn, TWn; where TEn represents the content of the nth inorganic substance obtained by parsing the terahertz time-domain spectroscopy component, TYn represents the content of the nth organic substance obtained by parsing the terahertz time-domain spectroscopy component, and TWn represents the content of the nth microorganism obtained by parsing the terahertz time-domain spectroscopy component; Define the gas-phase substance data obtained by parsing the laser-induced breakdown spectroscopy component as LEn, LYn, LWn; where LEn represents the content of the nth inorganic substance obtained by parsing the laser-induced breakdown spectroscopy component, LYn represents the content of the nth organic substance obtained by parsing the laser-induced breakdown spectroscopy component, and LWn represents the content of the nth microorganism obtained by parsing the laser-induced breakdown spectroscopy component; The output rule of the method for spectroscopically co-detecting gas-phase substances is as follows: during the detection of organic substances and microorganisms, when TYn > HYn, TYn > LWn or TYn > HYn, TYn < LWn or TYn < HYn, TYn > LWn, output TYn; when TYn < HYn, TYn < LWn, output TYn when the relative deviation < 50%, and output (TYn + HYn + LWn) / 3 when the relative deviation > 50%; during the detection of inorganic substances, output LEn.

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