CN116203046A - Gas detection system and method - Google Patents
Gas detection system and method Download PDFInfo
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- CN116203046A CN116203046A CN202211614791.8A CN202211614791A CN116203046A CN 116203046 A CN116203046 A CN 116203046A CN 202211614791 A CN202211614791 A CN 202211614791A CN 116203046 A CN116203046 A CN 116203046A
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- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The application relates to a gas detection system and method, relates to the technical field of gas detection, and the system comprises: a gas delivery device for delivering a gas to be detected; a plenum for storing a gas to be detected; the reaction chamber is used for detecting gas, and is internally provided with a sensor component which is used for detecting the gas to be detected to obtain a corresponding detection radar map; a control module for adjusting the operating parameters of the sensor component; the gas collection chamber is respectively communicated with the gas transmission device and the reaction chamber; the detection radar map is used for recording the components of different gases contained in the gas to be detected. The gas transmission structure is simple and efficient, is convenient to adjust, utilizes the preset sensor to analyze the components of the gas to be detected, obtains the corresponding detection radar chart, and effectively improves the controllability and the reliability of the gas component detection work.
Description
Technical Field
The application relates to the technical field of gas detection, in particular to a gas detection system and a gas detection method.
Background
The existing detection methods for detecting VOCs (Volatile Organic Compounds ) in exhaled breath mainly include chromatography and mass spectrometry, wherein the chromatography is a method for separating each component in a mixture first and then analyzing the components one by one, and the mass spectrometry is a method for detecting moving ions after separating the moving ions according to their mass-to-charge ratios by using an electric field and a magnetic field. The components in VOCs are separated and detected firstly, so that the instrument has a complex structure, a large volume and high price, and is inconvenient to popularize and use on a large scale.
Meanwhile, the detection of the human gastrointestinal tract diseases is greatly influenced by factors such as diet, environment, medicine taking and the like, and has great limitation in the application of primary screening of group diseases, and animal experiments can control the influencing factors, but the conventional mask exhalation of mice is difficult to cooperate.
Therefore, there is an urgent need for a gas detection technology that can be extended to clinical applications, meeting specific experimental as well as routine detection needs.
Disclosure of Invention
The application provides a gas detection system and method, and gas transmission structure is simple high-efficient, and the regulation of being convenient for utilizes preset sensor to carry out the analysis to the composition of treating the detected gas, obtains corresponding detection radar diagram, effectively improves gaseous composition detection work's controllability and reliability.
To achieve the above object, the present application provides the following aspects.
In a first aspect, the present application provides a gas detection system, the system comprising:
a gas delivery device for delivering a gas to be detected;
a plenum for storing the gas to be detected;
the reaction chamber is used for detecting gas, and a sensor component is arranged in the reaction chamber and is used for detecting the gas to be detected to obtain a corresponding detection radar map;
a control module for adjusting an operating parameter of the sensor component; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber is respectively communicated with the gas transmission device and the reaction chamber;
the detection radar chart is used for recording the components of different gases contained in the gas to be detected.
Further, the gas collection chamber is provided with a sample injection valve;
the gas collection chamber is communicated with the gas transmission device through the gas injection valve.
Further, the reaction chamber is communicated with the gas collection chamber through a preset gas sampling pump.
Further, the gas collection chamber is provided with a gas inlet valve;
the gas collection chamber is communicated with a preset clean gas conveying device through the gas inlet clean gas valve;
the clean gas conveying device is used for conveying clean gas.
Further, the reaction chamber is provided with an air outlet valve.
Further, the gas transmission device is provided with a water vapor filtering device, and the water vapor filtering device is used for filtering water vapor of the gas to be detected when the gas transmission device transmits the gas to be detected to the gas collection chamber.
Specifically, the sensor component includes:
a sensor control substrate disposed within the reaction chamber;
a sensor module mounted on the sensor control substrate; wherein, the liquid crystal display device comprises a liquid crystal display device,
the control module controls the sensor control substrate to adjust the working parameters of the sensor module.
Further, the system further comprises:
and the gas analysis device is used for comparing the detection radar chart corresponding to the gas to be detected with trained disease data in a preset gas sample database based on the preset gas sample database to obtain a comparison result.
In a second aspect, the present application provides a gas detection method comprising the steps of:
conveying the gas to be detected to a preset gas collection chamber by using a preset gas conveying device;
conveying the gas to be detected to a preset reaction chamber by utilizing the gas collection chamber;
adjusting working parameters of a sensor component in the reaction chamber by using a preset control module, and detecting the gas to be detected by using the sensor component to obtain a corresponding detection radar chart; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber is respectively communicated with the gas transmission device and the reaction chamber.
Further, the method comprises the following steps:
continuously conveying clean gas to the gas collection chamber and the reaction chamber by utilizing the gas conveying device; wherein, the liquid crystal display device comprises a liquid crystal display device,
and the gas collection chamber, residual gas in the reaction chamber and the cleaning gas are discharged from a preset exhaust channel on the reaction chamber.
The beneficial effects that technical scheme that this application provided brought include:
the gas transmission structure is simple and efficient, is convenient to adjust, utilizes the preset sensor to analyze the components of the gas to be detected, obtains the corresponding detection radar chart, and effectively improves the controllability and the reliability of the gas component detection work.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a gas detection system provided in an embodiment of the present application;
FIG. 2 is a schematic diagram of a detection radar chart of a gas detection system provided in an embodiment of the present application;
FIG. 3 is a schematic diagram of a first practical implementation of the gas detection system provided in an embodiment of the present application;
FIG. 4 is a schematic diagram of a second practical implementation of the gas detection system provided in an embodiment of the present application;
FIG. 5 is a schematic diagram of a third practical implementation of the gas detection system provided in an embodiment of the present application;
FIG. 6 is a flow chart of steps of a gas detection flow in the gas detection method provided in the embodiment of the present application;
in the figure: 1. a gas delivery device; 2. a water vapor filtering device; 3. a sample injection air valve; 4. a plenum chamber; 5. an air inlet cleaning valve; 6. a gas sampling pump; 7. a reaction chamber; 8. an air outlet valve; 9. a sensor component; 9A, a sensor control substrate; 9B, a sensor module; 10. a control module; 11. a clean gas delivery device; 12. a gas analysis device; 13. a data interaction module; 14. an additional air inlet.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present application based on the embodiments herein.
Embodiments of the present application are described in further detail below with reference to the accompanying drawings.
The embodiment of the application provides a gas detection system and a method, which have the advantages that the gas transmission structure is simple and efficient, the adjustment is convenient, the components of the gas to be detected are analyzed by using a preset sensor, a corresponding detection radar diagram is obtained, and the controllability and the reliability of the gas component detection work are effectively improved.
In order to achieve the technical effects, the general idea of the application is as follows:
a gas detection system, the system comprising:
a gas delivery device 1 for delivering a gas to be detected;
a plenum 4 for storing the gas to be detected;
a reaction chamber 7 for detecting gas, wherein a sensor component 9 is configured inside the reaction chamber 7, and the sensor component 9 is used for detecting the gas to be detected to obtain a corresponding detection radar chart;
a control module 10 for adjusting the operating parameters of said sensor means 9; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber 4 is respectively communicated with the gas transmission device 1 and the reaction chamber 7.
Embodiments of the present application are described in further detail below with reference to the accompanying drawings.
In a first aspect, embodiments of the present application provide a gas detection system, the system comprising:
a gas delivery device 1 for delivering a gas to be detected;
a plenum 4 for storing the gas to be detected;
a reaction chamber 7 for detecting gas, wherein a sensor component 9 is configured inside the reaction chamber 7, and the sensor component 9 is used for detecting the gas to be detected to obtain a corresponding detection radar chart;
a control module 10 for adjusting the operating parameters of said sensor means 9; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber 4 is respectively communicated with the gas transmission device 1 and the reaction chamber 7;
the detection radar chart is used for recording the components of different gases contained in the gas to be detected.
The sensor unit 9 includes:
a sensor control substrate 9A provided in the reaction chamber 7;
a sensor module 9B mounted on the sensor control board 9A; wherein, the liquid crystal display device comprises a liquid crystal display device,
the control module 10 controls the sensor control substrate 9A to adjust the working parameters of the sensor module 9B.
The sensor module 9 consists of a plurality of gas-sensitive detection devices sensitive to different VOCs;
the operating parameters of the sensor module 9 include operating temperature, operating voltage and load resistance.
Furthermore, the gas transmission device 1 can use an injector, and the injector can select corresponding specifications according to actual requirements;
the injector can be made of quartz glass, so that the injector can be repeatedly used, cleaned before sampling and dried for 2 hours at 70-80 ℃ in an oven, and VOC (Volatile Organic Compounds, volatile organic compound) residues are avoided;
the method for collecting gas in the embodiment of the application can also adopt air bags made of other materials or devices for collecting gas.
It should be noted that, the radar chart is a regular polygon chart, and each vertex of the regular polygon chart includes different gas types, that is, the gas to be detected includes several kinds of gases, and the regular polygon chart includes several vertices, that is, the regular polygon chart, and the lengths of the corresponding vertex and the line in the center of the polygon correspond to the gas components of the gas, which may be specifically shown in fig. 2 of the drawing of the specification.
In the embodiment of the application, the gas transmission structure is simple and efficient, the adjustment is convenient, the components of the gas to be detected are analyzed by the aid of the preset sensor, the corresponding detection radar chart is obtained, and the controllability and the reliability of the gas component detection work are effectively improved.
Further, the gas collection chamber 4 is provided with a sample injection valve 3;
the gas collection chamber 4 is communicated with the gas transmission device 1 through the sample injection gas valve 3.
Further, the reaction chamber 7 is communicated with the gas collection chamber 4 through a preset gas sampling pump 6.
Further, the air collection chamber 4 is provided with an air inlet valve 5;
the gas collection chamber 4 is communicated with a preset clean gas conveying device 11 through the gas inlet valve 5;
the clean gas delivery device 11 is used for delivering clean gas.
Further, the reaction chamber 7 is provided with an outlet valve 8.
Further, the gas transmission device 1 is configured with a water vapor filtering device 2, which is used for performing water vapor filtering on the gas to be detected when the gas transmission device 1 transmits the gas to be detected to the gas collection chamber 4.
Further, the gas detection system further includes:
and the gas analysis device 12 is used for comparing the detection radar chart corresponding to the gas to be detected with trained disease data in a preset gas sample database to obtain a comparison result.
Specifically, a gas sample database records the gas composition range or the gas composition radar chart of the gas exhaled by the patient corresponding to various known diseases;
and comparing the detection radar chart of the gas to be detected with the gas component radar chart, so that the correspondence of the gas to be detected with the known diseases can be known.
Wherein the trained disease data can be gastrointestinal tract disease data trained by a neural network algorithm;
i.e. the above known diseases may be gastrointestinal type diseases.
Of course, in order to meet more demands, the technical solution of the embodiments of the present application may also update the sample database in real time, so as to improve the reliability and accuracy of the component analysis.
It should be noted that the gas detection system further includes a data interaction module 13 for transmitting information between the component analysis device 12 and the control module 10;
the control module 10 receives a detection radar map obtained by the sensor part 9 detecting the gas to be detected, and transmits the detection radar map to the component analysis device 12 through the data interaction module 13.
In addition, the communication mode of the data interaction module 12 may be a wired or wireless communication mode.
It should be noted that, for more accurate and reliable detection, the sensor unit 9 may detect alkanes, aldehydes, short-chain fatty acids or ketones, and the sensitivity of the sensor unit 9 may reach the ppt level, which is all part per trillion, i.e. parts per trillion.
Further, the control module 10 corrects the detected radar map obtained by the detection of the sensor unit 9, that is, includes a radar map correction procedure.
The radar chart correction process specifically comprises the following processes:
recording a standard detection radar chart obtained when a sensor part 9 of the gas detection system detects a preset standard gas to be detected as an initial standard detection radar chart when the gas detection system leaves a factory;
furthermore, in the daily use process of the gas detection system, when the use times of the gas detection system reach the preset correction detection period, the gas detection system is used again to detect the preset standard gas to be detected, so as to obtain a current standard detection radar chart, and the current standard detection radar chart is recorded as a real-time standard detection radar chart;
respectively comparing the lengths of the lines corresponding to the gas components in the initial standard detection radar chart and the real-time standard detection radar chart, so as to obtain the length differences of the lines corresponding to the gas components;
based on the line length differences corresponding to the gas components, obtaining the line length difference proportion of the gas components in the real-time standard detection radar chart relative to the initial standard detection radar chart, and further obtaining a line length difference proportion average value;
further, the line length of the detection radar map obtained by the subsequent detection of the gas detection system is corrected based on the line length difference proportional average value.
Assuming that 100 times are taken as a period, 100 times of use are carried out, and then 100 times of corresponding line length difference proportional average values are obtained, and when the use times are between 101 and 200 times, the gas detection system corrects the line length of the detected radar map obtained by detection based on the 100 times of corresponding line length difference proportional average values;
and after 200 times of use, obtaining 200 times of corresponding line length difference proportional average values, and when the times of use are between 201 and 300 times, correcting the line length of the detected radar graph based on the 200 times of corresponding line length difference proportional average values by the gas detection system.
Further, to better implement the gas detection operation, the control module 10 is assisted to adjust the working parameters of the sensor module 9B by controlling the sensor control substrate 9A;
the control module 10 of the system may further include a parameter automatic configuration process and configure a parameter configuration database;
the parameter automatic configuration flow is specifically as follows:
firstly, the control module 10 controls all the gas-sensitive detection devices on the sensor module 9 to be in a working state;
further, the sensor module 9 is utilized to perform preliminary detection on the gas to be detected, a preliminary detection radar chart is obtained, and the rough gas composition is obtained based on the preliminary detection radar chart, so that the gas to be detected, namely the gas composition type of the gas to be detected, is grasped;
further, comparing the gas composition type of the gas to be detected with the parameter configuration database, and selecting a gas-sensitive detection device of a corresponding type and a corresponding working parameter;
and finally, controlling the gas-sensitive detection devices of the corresponding types to be in a working state, configuring corresponding working parameters, and controlling the gas-sensitive detection devices of other types to be in a rest state.
It should be noted that the parameter configuration database records the types of the gas-sensitive detection devices corresponding to different types of gases, and the gas-sensitive detection devices detect the working parameters of the types of gases.
Based on the above technical solution, a practical implementation situation of the embodiment of the present application is provided, which is specifically as follows:
the gas collection chamber 4 is connected with the gas transmission device 1 through the sample injection gas valve 3 to collect gas to be detected;
a sensor control substrate 9A is arranged in the reaction chamber 7, and a sensor module 9B is arranged on the sensor control substrate 9A;
the control module 10 adjusts working parameters of the sensor module 9B through the sensor control substrate 9A, reacts with the gas to be detected and outputs detection radar images of different gas components;
the control module 10 inputs the detection radar chart into the component analysis device 12 through the data interaction module 13, the component analysis device 12 compares the detection radar chart with trained disease data in the sample database, and outputs a comparison result.
When the inside of the system needs to be cleaned, as the gas sampling pump 6 is arranged between the gas collection chamber 4 and the reaction chamber 7, the cleaning gas which is conveyed into the gas collection chamber 4 by the cleaning gas conveying device 11 is conveyed into the reaction chamber 7;
the gas collection chamber 4 is filled with cleaning gas through the gas inlet cleaning valve 5, so that residual gas in the gas collection chamber 4 and the reaction chamber 7 is cleaned, and the residual gas is discharged through the gas outlet valve 8 on the reaction chamber 7.
In addition, there is another embodiment, which is described as a third practical implementation structure, as shown in fig. 5 of the drawings of the specification. The gas collection chamber 4 adopts an injector, for example, a 50ml injector, and the experimental mouse is fixed in the gas collection chamber 4, namely, the injector is internally provided, the gas transmission device 1 adopts an external gas inlet interface, at the moment, the experimental mouse directly exhales the gas to be detected in the gas collection chamber 4, and the gas transmission device 1 adopts the external gas inlet interface, so that the synthetic air can be input into the gas collection chamber 4, and the background gas component can be better controlled.
Of course, in another embodiment, namely in the second practical implementation structure, an additional air inlet 14 may be provided on the air collection chamber 4, for accessing zero air, as shown in fig. 4 of the drawings of the specification;
because during specific experiments, the experimental mice can be placed in the injector, the work of conveying the exhaled air of the experimental mice is realized by pushing and pulling the injector, and at the moment, an additional air inlet 14 is further configured so as to convey zero air;
the zero gas is a gas which adjusts the minimum scale of the gas analyzer or a gas which shows zero when entering the analyzer, and the zero gas should not contain a component to be measured or an interfering substance, but may contain a component which is not related to measurement, and generally high-purity nitrogen or clean air which does not contain a component to be measured is used as the zero gas.
Of course, in a specific experiment, the gas transmission device 1 can use an injector, and an experiment mouse to be monitored is placed in the injector, so that the injector is pushed, and the gas exhaled by the experiment mouse, namely the gas to be detected exhaled by the experiment mouse, is conveyed to the gas collection chamber 4.
I.e. the conveyor 1 and the plenum 4 can be adjusted according to the actual situation.
It should be noted that, when the specific experiment is performed in the embodiment of the present application, the following advantages exist:
first, the test animal can be matched and has operability;
the second point is that real-time online analysis and detection can be realized, the experiment mice breathe in a 500ml injector for 2min, then the piston is pushed for 200ml, the air intake is carried out for 200ml, and the image data of the expired air can be obtained ten minutes after the air enters the reaction chamber, so that the time of experimental operation is greatly saved;
third, the experimental mice are fed and molded uniformly, and the experimental mice can be sampled at any time under empty stomach.
In a second aspect, based on the same inventive concept as the first aspect, embodiments of the present application provide a gas detection method, including a gas detection flow, the gas detection flow including the steps of:
a1, conveying gas to be detected to a preset gas collection chamber 4 by using a preset gas conveying device 1;
a2, conveying the gas to be detected to a preset reaction chamber 7 by utilizing the gas collection chamber 4;
a3, adjusting working parameters of a sensor component 9 in the reaction chamber 7 by using a preset control module 10, and detecting the gas to be detected by using the sensor component 9 to obtain a corresponding detection radar map; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber 4 is respectively communicated with the gas transmission device 1 and the reaction chamber 7;
the detection radar chart is used for recording the components of different gases contained in the gas to be detected.
In the embodiment of the application, the gas transmission structure is simple and efficient, the adjustment is convenient, the components of the gas to be detected are analyzed by the aid of the preset sensor, the corresponding detection radar chart is obtained, and the controllability and the reliability of the gas component detection work are effectively improved.
Further, the method also comprises a gas cleaning process, which comprises the following steps
Continuously delivering cleaning gas to the gas collection chamber 4 and the reaction chamber 7 by using the gas delivery device 1; wherein, the liquid crystal display device comprises a liquid crystal display device,
the residual gas in the gas collection chamber 4 and the reaction chamber 7 and the cleaning gas are discharged from a preset exhaust channel on the reaction chamber 7.
The gas detection method of the embodiment of the application is based on a gas detection system, which comprises the following steps:
a gas delivery device 1 for delivering a gas to be detected;
a plenum 4 for storing the gas to be detected;
a reaction chamber 7 for detecting gas, wherein a sensor component 9 is configured inside the reaction chamber 7, and the sensor component 9 is used for detecting the gas to be detected to obtain a corresponding detection radar chart;
a control module 10 for adjusting the operating parameters of said sensor means 9; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber 4 is respectively communicated with the gas transmission device 1 and the reaction chamber 7;
the detection radar chart is used for recording the components of different gases contained in the gas to be detected.
The sensor unit 9 includes:
a sensor control substrate 9A provided in the reaction chamber 7;
a sensor module 9B mounted on the sensor control board 9A; wherein, the liquid crystal display device comprises a liquid crystal display device,
the control module 10 controls the sensor control substrate 9A to adjust the working parameters of the sensor module 9B.
The sensor module 9 consists of a plurality of gas-sensitive detection devices sensitive to different VOCs;
the operating parameters of the sensor module 9 include operating temperature, operating voltage and load resistance.
Furthermore, the gas transmission device 1 can use an injector, and the injector can select corresponding specifications according to actual requirements;
the injector can be made of quartz glass, so that the injector can be repeatedly used, cleaned before sampling and dried for 2 hours at 70-80 ℃ in an oven, and VOC residues are avoided;
the method for collecting gas in the embodiment of the application can also adopt air bags made of other materials or devices for collecting gas.
It should be noted that, the radar chart is a regular polygon chart, and each vertex of the regular polygon chart includes different gas types, that is, the gas to be detected includes several kinds of gases, and the regular polygon chart includes several vertices, that is, the regular polygon chart, and the lengths of the corresponding vertex and the line in the center of the polygon correspond to the gas components of the gas, which may be specifically shown in fig. 2 of the drawing of the specification.
Further, the gas collection chamber 4 is provided with a sample injection valve 3;
the gas collection chamber 4 is communicated with the gas transmission device 1 through the sample injection gas valve 3.
Further, the reaction chamber 7 is communicated with the gas collection chamber 4 through a preset gas sampling pump 6.
Further, the air collection chamber 4 is provided with an air inlet valve 5;
the gas collection chamber 4 is communicated with a preset clean gas conveying device 11 through the gas inlet valve 5;
the clean gas delivery device 11 is used for delivering clean gas.
Further, the reaction chamber 7 is provided with an outlet valve 8.
Further, the gas transmission device 1 is configured with a water vapor filtering device 2, which is used for performing water vapor filtering on the gas to be detected when the gas transmission device 1 transmits the gas to be detected to the gas collection chamber 4.
Further, the gas detection system further includes:
and the gas analysis device 12 is used for comparing the detection radar chart corresponding to the gas to be detected with trained disease data in a preset gas sample database to obtain a comparison result.
Specifically, a gas sample database records the gas composition range or the gas composition radar chart of the gas exhaled by the patient corresponding to various known diseases;
and comparing the detection radar chart of the gas to be detected with the gas component radar chart, so that the correspondence of the gas to be detected with the known diseases can be known.
Wherein the trained disease data can be gastrointestinal tract disease data trained by a neural network algorithm;
i.e. the above known diseases may be gastrointestinal type diseases.
Of course, in order to meet more demands, the technical solution of the embodiments of the present application may also update the sample database in real time, so as to improve the reliability and accuracy of the component analysis.
It should be noted that the gas detection system further includes a data interaction module 13 for transmitting information between the component analysis device 12 and the control module 10;
the control module 10 receives a detection radar map obtained by the sensor part 9 detecting the gas to be detected, and transmits the detection radar map to the component analysis device 12 through the data interaction module 13.
In addition, the communication mode of the data interaction module 12 may be a wired or wireless communication mode.
It should be noted that, for more accurate and reliable detection, the sensor unit 9 may detect alkanes, aldehydes, short-chain fatty acids or ketones, and the sensitivity of the sensor unit 9 may reach the ppt level, which is all part per trillion, i.e. parts per trillion.
Further, the control module 10 corrects the detected radar map obtained by the detection of the sensor unit 9, that is, includes a radar map correction procedure.
The radar chart correction process specifically comprises the following processes:
recording a standard detection radar chart obtained when a sensor part 9 of the gas detection system detects a preset standard gas to be detected as an initial standard detection radar chart when the gas detection system leaves a factory;
furthermore, in the daily use process of the gas detection system, when the use times of the gas detection system reach the preset correction detection period, the gas detection system is used again to detect the preset standard gas to be detected, so as to obtain a current standard detection radar chart, and the current standard detection radar chart is recorded as a real-time standard detection radar chart;
respectively comparing the lengths of the lines corresponding to the gas components in the initial standard detection radar chart and the real-time standard detection radar chart, so as to obtain the length differences of the lines corresponding to the gas components;
based on the line length differences corresponding to the gas components, obtaining the line length difference proportion of the gas components in the real-time standard detection radar chart relative to the initial standard detection radar chart, and further obtaining a line length difference proportion average value;
further, the line length of the detection radar map obtained by the subsequent detection of the gas detection system is corrected based on the line length difference proportional average value.
Assuming that 100 times are taken as a period, 100 times of use are carried out, and then 100 times of corresponding line length difference proportional average values are obtained, and when the use times are between 101 and 200 times, the gas detection system corrects the line length of the detected radar map obtained by detection based on the 100 times of corresponding line length difference proportional average values;
and after 200 times of use, obtaining 200 times of corresponding line length difference proportional average values, and when the times of use are between 201 and 300 times, correcting the line length of the detected radar graph based on the 200 times of corresponding line length difference proportional average values by the gas detection system.
Further, to better implement the gas detection operation, the control module 10 is assisted to adjust the working parameters of the sensor module 9B by controlling the sensor control substrate 9A;
the control module 10 of the system may further include a parameter automatic configuration process and configure a parameter configuration database;
the parameter automatic configuration flow is specifically as follows:
firstly, the control module 10 controls all the gas-sensitive detection devices on the sensor module 9 to be in a working state;
further, the sensor module 9 is utilized to perform preliminary detection on the gas to be detected, a preliminary detection radar chart is obtained, and the rough gas composition is obtained based on the preliminary detection radar chart, so that the gas to be detected, namely the gas composition type of the gas to be detected, is grasped;
further, comparing the gas composition type of the gas to be detected with the parameter configuration database, and selecting a gas-sensitive detection device of a corresponding type and a corresponding working parameter;
and finally, controlling the gas-sensitive detection devices of the corresponding types to be in a working state, configuring corresponding working parameters, and controlling the gas-sensitive detection devices of other types to be in a rest state.
It should be noted that the parameter configuration database records the types of the gas-sensitive detection devices corresponding to different types of gases, and the gas-sensitive detection devices detect the working parameters of the types of gases.
Based on the above technical solution, a practical implementation situation of the embodiment of the present application is provided, which is specifically as follows:
the gas collection chamber 4 is connected with the gas transmission device 1 through the sample injection gas valve 3 to collect gas to be detected;
a sensor control substrate 9A is arranged in the reaction chamber 7, and a sensor module 9B is arranged on the sensor control substrate 9A;
the control module 10 adjusts working parameters of the sensor module 9B through the sensor control substrate 9A, reacts with the gas to be detected and outputs detection radar images of different gas components;
the control module 10 inputs the detection radar chart into the component analysis device 12 through the data interaction module 13, the component analysis device 12 compares the detection radar chart with trained disease data in the sample database, and outputs a comparison result.
When the inside of the system needs to be cleaned, as the gas sampling pump 6 is arranged between the gas collection chamber 4 and the reaction chamber 7, the cleaning gas which is conveyed into the gas collection chamber 4 by the cleaning gas conveying device 11 is conveyed into the reaction chamber 7;
the gas collection chamber 4 is filled with cleaning gas through the gas inlet cleaning valve 5, so that residual gas in the gas collection chamber 4 and the reaction chamber 7 is cleaned, and the residual gas is discharged through the gas outlet valve 8 on the reaction chamber 7.
In addition, there is another embodiment, which is described as a third practical implementation structure, as shown in fig. 5 of the drawings of the specification. The gas collection chamber 4 adopts an injector, for example, a 50ml injector, and the experimental mouse is fixed in the gas collection chamber 4, namely, the injector is internally provided, the gas transmission device 1 adopts an external gas inlet interface, at the moment, the experimental mouse directly exhales the gas to be detected in the gas collection chamber 4, and the gas transmission device 1 adopts the external gas inlet interface, so that the synthetic air can be input into the gas collection chamber 4, and the background gas component can be better controlled.
Of course, in another embodiment, namely in the second practical implementation structure, an additional air inlet 14 may be provided on the air collection chamber 4, for accessing zero air, as shown in fig. 4 of the drawings of the specification;
because during specific experiments, the experimental mice can be placed in the injector, the work of conveying the exhaled air of the experimental mice is realized by pushing and pulling the injector, and at the moment, an additional air inlet 14 is further configured so as to convey zero air;
the zero gas is a gas which adjusts the minimum scale of the gas analyzer or a gas which shows zero when entering the analyzer, and the zero gas should not contain a component to be measured or an interfering substance, but may contain a component which is not related to measurement, and generally high-purity nitrogen or clean air which does not contain a component to be measured is used as the zero gas.
Of course, in a specific experiment, the gas transmission device 1 can use an injector, and an experiment mouse to be monitored is placed in the injector, so that the injector is pushed, and the gas exhaled by the experiment mouse, namely the gas to be detected exhaled by the experiment mouse, is conveyed to the gas collection chamber 4.
I.e. the conveyor 1 and the plenum 4 can be adjusted according to the actual situation.
It should be noted that, when the specific experiment is performed in the embodiment of the present application, the following advantages exist:
first, the test animal can be matched and has operability;
the second point is that real-time online analysis and detection can be realized, the experiment mice breathe in a 500ml injector for 2min, then the piston is pushed for 200ml, the air intake is carried out for 200ml, and the image data of the expired air can be obtained ten minutes after the air enters the reaction chamber, so that the time of experimental operation is greatly saved;
third, the experimental mice are fed and molded uniformly, and the experimental mice can be sampled at any time under empty stomach.
It should be noted that in this application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely a specific embodiment of the application to enable one skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A gas detection system, the system comprising:
a gas delivery device (1) for delivering a gas to be detected;
a plenum (4) for storing the gas to be detected;
a reaction chamber (7) for detecting gas, wherein a sensor component (9) is arranged inside the reaction chamber (7), and the sensor component (9) is used for detecting the gas to be detected to obtain a corresponding detection radar chart;
-a control module (10) for adjusting an operating parameter of said sensor means (9); wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber (4) is respectively communicated with the gas transmission device (1) and the reaction chamber (7);
the detection radar chart is used for recording the components of different gases contained in the gas to be detected.
2. The gas detection system of claim 1, wherein:
the gas collection chamber (4) is provided with a sample injection valve (3);
the gas collection chamber (4) is communicated with the gas transmission device (1) through the sample injection air valve (3).
3. The gas detection system of claim 1, wherein:
the reaction chamber (7) is communicated with the gas collection chamber (4) through a preset gas sampling pump (6).
4. The gas detection system of claim 1, wherein:
an air inlet valve (5) is arranged on the air collection chamber (4);
the air collection chamber (4) is communicated with a preset clean air conveying device (11) through the air inlet valve (5);
the clean gas conveying device (11) is used for conveying clean gas.
5. The gas detection system of claim 4, wherein:
the reaction chamber (7) is provided with an outlet valve (8).
6. The gas detection system of claim 1, wherein:
the gas transmission device (1) is provided with a water vapor filtering device (2) which is used for carrying out water vapor filtering on the gas to be detected when the gas transmission device (1) transmits the gas to be detected to the gas collection chamber (4).
7. The gas detection system according to claim 1, wherein the sensor means (9) comprises:
a sensor control substrate (9A) provided in the reaction chamber (7);
a sensor module (9B) mounted on the sensor control board (9A); wherein, the liquid crystal display device comprises a liquid crystal display device,
the control module (10) controls the sensor control substrate (9A) to adjust the working parameters of the sensor module (9B).
8. The gas detection system of claim 1, wherein the system further comprises:
and the gas analysis device (12) is used for comparing the detection radar chart corresponding to the gas to be detected with trained disease data in a preset gas sample database to obtain a comparison result.
9. A method of gas detection, the method comprising the steps of:
conveying the gas to be detected to a preset gas collection chamber (4) by using a preset gas conveying device (1);
conveying the gas to be detected to a preset reaction chamber (7) by utilizing the gas collection chamber (4);
adjusting working parameters of a sensor component (9) in the reaction chamber (7) by using a preset control module (10), and detecting the gas to be detected by using the sensor component (9) to obtain a corresponding detection radar chart; wherein, the liquid crystal display device comprises a liquid crystal display device,
the gas collection chamber (4) is respectively communicated with the gas transmission device (1) and the reaction chamber (7);
the detection radar chart is used for recording the components of different gases contained in the gas to be detected.
10. The gas detection method according to claim 9, further comprising the steps of:
continuously delivering cleaning gas to the gas collection chamber (4) and the reaction chamber (7) by using the gas delivery device (1); wherein, the liquid crystal display device comprises a liquid crystal display device,
residual gas in the gas collection chamber (4) and the reaction chamber (7) and the cleaning gas are discharged from a preset exhaust channel on the reaction chamber (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614791.8A CN116203046A (en) | 2022-12-14 | 2022-12-14 | Gas detection system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211614791.8A CN116203046A (en) | 2022-12-14 | 2022-12-14 | Gas detection system and method |
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| Publication Number | Publication Date |
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| CN116203046A true CN116203046A (en) | 2023-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211614791.8A Pending CN116203046A (en) | 2022-12-14 | 2022-12-14 | Gas detection system and method |
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| Country | Link |
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| CN (1) | CN116203046A (en) |
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