CN111487368A - Automatic detection and analysis system and method for volatile organic compounds - Google Patents
Automatic detection and analysis system and method for volatile organic compounds Download PDFInfo
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Abstract
The invention relates to a volatile organic compound automatic detection and analysis system and a method, wherein the system comprises 1 detection master station and a plurality of detection base stations, the detection master station is in signal connection with each detection base station, and each detection base station is connected with at least one detection terminal; by providing the automatic volatile organic compound detection and analysis system and method, whether the real-time detection result of the corresponding type of volatile organic compound in each detection base station exceeds the corresponding preset threshold range is judged, so that corresponding data are displayed to a user in real time according to different sequences, the accuracy of the data is ensured, and the user experience is improved; through two rechecks, the data transmission accuracy when the real-time detection result of the corresponding type of volatile organic compounds in the corresponding detection base station exceeds the corresponding preset threshold range is ensured, so that data interference is avoided, and the accurate and effective formulation of follow-up environment improvement measures is ensured.
Description
Technical Field
The invention relates to the technical field of volatile organic compound detection, in particular to an automatic volatile organic compound detection and analysis system and method.
Background
With the increasing global economic level, the frequency of developing and applying resources is increased, and the problem of environmental pollution is worsened. Therefore, in order to create a good living atmosphere, the living environment needs to be protected. In the prior art, the detection of the air environments at different positions in a local area is usually achieved by setting different detection devices to perform multiple times of detection data collection, and due to the adoption of a detection mode of field acquisition remote data transmission, once the field acquisition device is installed wrongly or the external environment is changed, the detection of volatile organic compounds cannot be timely and effectively performed, the data transmission of a detection head station and the subsequent specification of environment improvement measures are influenced.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides an automatic volatile organic compound detection and analysis system and method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
an automatic volatile organic compound detection and analysis system is characterized in that: the system comprises 1 detection master station and a plurality of detection base stations, wherein the detection master station is in signal connection with each detection base station, and each detection base station is connected with at least one detection terminal; wherein,
each detection base station detects the concentration of a plurality of volatile organic compounds, and the type of the volatile organic compounds detected in each detection base station is different from the types of the volatile organic compounds detected in other detection base stations; a threshold range corresponding to the type of the detected volatile organic compounds is preset in each detection base station, each detection base station detects the concentration of the corresponding type of the volatile organic compounds at the set position in real time through a detection terminal, compares the concentration with the preset threshold range in the detection base station, and sends the real-time detection result, the preset threshold range and the comparison result of the corresponding type of the volatile organic compounds to a detection master station;
the detection master station is provided with a judgment module, a display module, a priority module, a rechecking module and an alarm module, the judgment module judges whether the real-time detection result of the corresponding type of volatile organic compounds in each detection base station exceeds the corresponding preset threshold range, the priority module is preset with a priority display sequence,
when the judgment module judges that the real-time detection result of the volatile organic compound of the corresponding type in each detection base station does not exceed the corresponding preset threshold range, the display module displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station according to the preset priority display sequence in the priority module;
when the judgment module judges that the real-time detection result of the volatile organic compound of the corresponding type in each detection base station exceeds the corresponding preset threshold range, the priority module carries out reordering from large to small according to the ratio of the exceeding numerical value absolute value to the preset threshold absolute value, and displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station in sequence according to the reordering result, and meanwhile, the rechecking module carries out one-time rechecking on the detection result of the detection base station of which the real-time detection result exceeds the corresponding preset threshold range, and sequentially displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station after one-time rechecking according to the reordering result; performing secondary rechecking on the detection results of the detection base stations of which the real-time detection results still exceed the corresponding preset threshold range after the primary rechecking, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after the secondary rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results; and the alarm module carries out corresponding alarm on the detection base station of which the real-time detection result still exceeds the corresponding preset threshold range after secondary rechecking.
Furthermore, the detection terminal comprises a detection module, a spherical base and a detection pipeline, wherein the detection module is arranged below the spherical base and is communicated with the interior of the detection pipeline through the spherical base; the detection pipeline comprises a lower pipe body, a middle pipe body and an upper pipe body which are connected with each other from bottom to top, wherein the lower pipe body and the upper pipe body are telescopic pipe bodies, the middle pipe body is a bendable pipe body, a lower pipe body inlet regulator and a lower pipe body locking device are arranged at the connecting position of the lower pipe body and the middle pipe body, and an upper pipe body inlet regulator and an upper pipe body locking device are arranged at the connecting position of the upper pipe body and the middle pipe body.
Further, when rechecking for the first time and rechecking for the second time, the detection base station which controls the real-time detection result to exceed the corresponding preset threshold range adjusts the telescopic length of the lower pipe body and the upper pipe body of the corresponding detection terminal, and the bending angle of the middle pipe body.
Furthermore, the adjustable range of the telescopic length of the lower tube body and the upper tube body of the detection terminal and the adjustable range of the bending angle of the middle tube body during the primary rechecking are larger than the adjustable range of the telescopic length of the lower tube body and the upper tube body of the detection terminal and the adjustable range of the bending angle of the middle tube body during the secondary rechecking.
Further, the actual adjusting range of the bending angle of the middle tube body and the telescopic length of the lower tube body and the upper tube body of the detection terminal during the primary rechecking is larger than the actual adjusting range of the bending angle of the middle tube body and the telescopic length of the lower tube body and the upper tube body of the detection terminal during the secondary rechecking.
Furthermore, the adjustment priority of the telescopic length of the lower tube body and the upper tube body of the detection terminal is later than that of the bending angle of the middle tube body during one rechecking.
Furthermore, the adjustment priority of the telescopic length of the lower tube body and the upper tube body of the detection terminal is higher than that of the bending angle of the middle tube body during secondary rechecking.
Further, the invention also provides an automatic detection and analysis method for volatile organic compounds, which is characterized by comprising the following steps: the method comprises the following steps:
1) each detection base station detects the concentration of a plurality of corresponding volatile organic compounds and sends the detection result to a detection master station;
2) the detection master station judges whether the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station exceeds the corresponding preset threshold range; if not, entering step 3), and if exceeding, entering step 4);
3) when the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station is judged not to exceed the corresponding preset threshold range, the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compounds detected by each detection base station are displayed in the detection master station according to a preset priority display sequence;
4) when the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station is judged to exceed the corresponding preset threshold range, the types of the detected volatile organic compounds are reordered from large to small according to the ratio of the exceeding numerical value absolute value to the preset threshold absolute value;
5) performing one-time rechecking on the detection results of the detection base stations with the real-time detection results exceeding the corresponding preset threshold range, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after one-time rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results;
6) performing secondary rechecking on the detection results of the detection base stations of which the real-time detection results still exceed the corresponding preset threshold range after the primary rechecking, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after the secondary rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results;
7) and correspondingly alarming the detection base station of which the real-time detection result still exceeds the corresponding preset threshold range after the secondary rechecking.
The invention has the beneficial effects that:
(1) by providing the automatic volatile organic compound detection and analysis system and method, whether the real-time detection result of the corresponding type of volatile organic compound in each detection base station exceeds the corresponding preset threshold range or not is judged, so that corresponding data are displayed to a user in real time according to different sequences, the accuracy of the data is ensured, and the user experience is improved.
(2) Through two rechecks, the data transmission accuracy when the real-time detection result of the corresponding type of volatile organic compounds in the corresponding detection base station exceeds the corresponding preset threshold range is ensured, so that data interference is avoided, and the accurate and effective formulation of follow-up environment improvement measures is ensured.
(3) Through the real-time adjustment to the detection terminal in once rechecking and the second rechecking process, on the premise of ensuring that the detection result is effective, the situation that the position or the installation error of the on-site acquisition device and the external environment are changed and the detection of the volatile organic compounds cannot be timely and effectively carried out is avoided.
Drawings
FIG. 1 is a schematic diagram of an automated inspection and analysis system according to the present invention;
FIG. 2 is a schematic structural diagram of a detection terminal according to the present invention;
fig. 3 is a rear view showing the structure of the inspection terminal of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1-3, an automatic detecting and analyzing system for volatile organic compounds is characterized in that: the system comprises 1 detection master station and a plurality of detection base stations, wherein the detection master station is in signal connection with each detection base station, and each detection base station is connected with at least one detection terminal; wherein,
each detection base station detects the concentration of a plurality of volatile organic compounds, and the type of the volatile organic compounds detected in each detection base station is different from the types of the volatile organic compounds detected in other detection base stations; a threshold range corresponding to the type of the detected volatile organic compounds is preset in each detection base station, each detection base station detects the concentration of the corresponding type of the volatile organic compounds at the set position in real time through a detection terminal, compares the concentration with the preset threshold range in the detection base station, and sends the real-time detection result, the preset threshold range and the comparison result of the corresponding type of the volatile organic compounds to a detection master station;
the detection master station is provided with a judgment module, a display module, a priority module, a rechecking module and an alarm module, the judgment module judges whether the real-time detection result of the corresponding type of volatile organic compounds in each detection base station exceeds the corresponding preset threshold range, the priority module is preset with a priority display sequence,
when the judgment module judges that the real-time detection result of the volatile organic compound of the corresponding type in each detection base station does not exceed the corresponding preset threshold range, the display module displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station according to the preset priority display sequence in the priority module;
when the judgment module judges that the real-time detection result of the volatile organic compound of the corresponding type in each detection base station exceeds the corresponding preset threshold range, the priority module carries out reordering from large to small according to the ratio of the exceeding numerical value absolute value to the preset threshold absolute value, and displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station in sequence according to the reordering result, and meanwhile, the rechecking module carries out one-time rechecking on the detection result of the detection base station of which the real-time detection result exceeds the corresponding preset threshold range, and sequentially displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station after one-time rechecking according to the reordering result; performing secondary rechecking on the detection results of the detection base stations of which the real-time detection results still exceed the corresponding preset threshold range after the primary rechecking, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after the secondary rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results; and the alarm module carries out corresponding alarm on the detection base station of which the real-time detection result still exceeds the corresponding preset threshold range after secondary rechecking.
Specifically, the detection terminal comprises a detection module, a spherical base 1 and a detection pipeline 2, wherein the detection module is arranged below the spherical base 1 and is communicated with the interior of the detection pipeline 2 through the spherical base 1; the detection pipeline 2 comprises a lower pipe body 2-1, a middle pipe body 2-2 and an upper pipe body 2-3 which are connected with each other from bottom to top, wherein the lower pipe body 2-1 and the upper pipe body 2-3 are telescopic pipe bodies, the middle pipe body 2-2 is a bendable pipe body, a lower pipe body inlet regulator 2-11 and a lower pipe body locking device 2-12 are arranged at the connecting position of the lower pipe body 2-1 and the middle pipe body 2-2, an upper pipe body inlet regulator 2-21 and an upper pipe body locking device 2-22 are arranged at the connecting position of the upper pipe body 2-3 and the middle pipe body 2-2, the lower pipe body inlet regulator 2-11 is used for regulating the aperture size and the channel opening and closing size of a channel between the lower pipe body 2-1 and a detection module, the lower pipe body locking device 2-12 is used for controlling the position locking of the lower pipe body 2-1 after the length expansion and contraction and the middle pipe body 2-2 after the angle bending, the upper pipe body inlet regulator 2-21 is used for regulating the aperture size and the channel opening and closing of a channel between the upper pipe body 2-3 and a detection position, and the upper pipe body locking device is used for controlling the position locking of the upper pipe body 2-3 after the length expansion and contraction and the middle pipe body 2-2 after the angle bending.
Specifically, during the primary and secondary rechecks, the detection base station, which controls the real-time detection result to exceed the corresponding preset threshold range, adjusts the extension lengths of the lower tube body 2-1 and the upper tube body 2-3 of the corresponding detection terminal and the bending angle of the middle tube body 2-2, so that the defect that the accurate detection of the volatile organic compound cannot be timely and effectively carried out due to the installation error of the field acquisition device or the change of the external environment which may occur is effectively avoided.
Specifically, the adjustable range of the telescopic length of the lower tube body 2-1 and the upper tube body 2-3 and the adjustable range of the bending angle of the middle tube body 2-2 of the detection terminal during the first rechecking is larger than the adjustable range of the telescopic length of the lower tube body 2-1 and the upper tube body 2-3 and the adjustable range of the bending angle of the middle tube body 2-2 of the detection terminal during the second rechecking, the detection terminal needs to be coarsely adjusted during the first rechecking, and the detection terminal needs to be finely adjusted during the second rechecking, so that the adjustable range of the bending angle and the telescopic length of the corresponding part of the detection pipeline 2 needs to be smaller than that during the first rechecking, and the process of coarse adjustment and fine adjustment is realized.
Specifically, the actual adjustment range of the telescopic length of the lower tube body 2-1 and the upper tube body 2-3 and the actual adjustment range of the bending angle of the middle tube body 2-2 of the detection terminal during the first rechecking is larger than the actual adjustment range of the telescopic length of the lower tube body 2-1 and the upper tube body 2-3 and the actual adjustment range of the bending angle of the middle tube body 2-2 of the detection terminal during the second rechecking, the detection terminal needs to be roughly adjusted during the first rechecking, and the detection terminal needs to be finely adjusted during the second rechecking, so that the actual adjustment ranges of the bending angle and the telescopic length of the corresponding part of the detection pipeline 2 during the second rechecking need to be specifically set to be smaller than that during the first rechecking, and the process of firstly.
Specifically, the adjustment priority of the telescopic lengths of the lower tube body 2-1 and the upper tube body 2-3 of the detection terminal is later than that of the bending angle of the middle tube body 2-2 in one rechecking; compared with secondary rechecking, the possibility of sudden change of the detection position or sudden change of the detection direction caused by external influence of the detection terminal during primary rechecking is higher, so that the adjustment of the angle of the detection terminal preferentially is more favorable for improving the accuracy and effectiveness of rechecking.
Specifically, the adjustment priority of the telescopic lengths of the lower tube body 2-1 and the upper tube body 2-3 of the detection terminal is higher than that of the bending angle of the middle tube body 2-2 during secondary rechecking; compared with the primary rechecking, the possibility of sudden change of the detection position or sudden change of the detection direction caused by external influence of the detection terminal is relatively low during the secondary rechecking, and the possibility of detection error caused by the distance of the detection terminal is relatively higher, so that the expansion degree of the detection terminal, namely the detection distance, is preferentially adjusted, and the accuracy and the effectiveness of the rechecking are improved.
Specifically, the invention also provides an automatic detection and analysis method of volatile organic compounds, which comprises the following steps:
1) each detection base station detects the concentration of a plurality of corresponding volatile organic compounds and sends the detection result to a detection master station;
2) the detection master station judges whether the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station exceeds the corresponding preset threshold range; if not, entering step 3), and if exceeding, entering step 4);
3) when the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station is judged not to exceed the corresponding preset threshold range, the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compounds detected by each detection base station are displayed in the detection master station according to a preset priority display sequence;
4) when the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station is judged to exceed the corresponding preset threshold range, the types of the detected volatile organic compounds are reordered from large to small according to the ratio of the exceeding numerical value absolute value to the preset threshold absolute value;
5) performing one-time rechecking on the detection results of the detection base stations with the real-time detection results exceeding the corresponding preset threshold range, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after one-time rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results;
6) performing secondary rechecking on the detection results of the detection base stations of which the real-time detection results still exceed the corresponding preset threshold range after the primary rechecking, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after the secondary rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results;
7) and correspondingly alarming the detection base station of which the real-time detection result still exceeds the corresponding preset threshold range after the secondary rechecking.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (8)
1. An automatic volatile organic compound detection and analysis system is characterized in that: the system comprises 1 detection master station and a plurality of detection base stations, wherein the detection master station is in signal connection with each detection base station, and each detection base station is connected with at least one detection terminal; wherein,
each detection base station detects the concentration of a plurality of volatile organic compounds, and the type of the volatile organic compounds detected in each detection base station is different from the types of the volatile organic compounds detected in other detection base stations; a threshold range corresponding to the type of the detected volatile organic compounds is preset in each detection base station, each detection base station detects the concentration of the corresponding type of the volatile organic compounds at the set position in real time through a detection terminal, compares the concentration with the preset threshold range in the detection base station, and sends the real-time detection result, the preset threshold range and the comparison result of the corresponding type of the volatile organic compounds to a detection master station;
the detection master station is provided with a judgment module, a display module, a priority module, a rechecking module and an alarm module, the judgment module judges whether the real-time detection result of the corresponding type of volatile organic compounds in each detection base station exceeds the corresponding preset threshold range, the priority module is preset with a priority display sequence,
when the judgment module judges that the real-time detection result of the volatile organic compound of the corresponding type in each detection base station does not exceed the corresponding preset threshold range, the display module displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station according to the preset priority display sequence in the priority module;
when the judgment module judges that the real-time detection result of the volatile organic compound of the corresponding type in each detection base station exceeds the corresponding preset threshold range, the priority module carries out reordering from large to small according to the ratio of the exceeding numerical value absolute value to the preset threshold absolute value, and displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station in sequence according to the reordering result, and meanwhile, the rechecking module carries out one-time rechecking on the detection result of the detection base station of which the real-time detection result exceeds the corresponding preset threshold range, and sequentially displays the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compound detected by each detection base station after one-time rechecking according to the reordering result; performing secondary rechecking on the detection results of the detection base stations of which the real-time detection results still exceed the corresponding preset threshold range after the primary rechecking, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after the secondary rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results; and the alarm module carries out corresponding alarm on the detection base station of which the real-time detection result still exceeds the corresponding preset threshold range after secondary rechecking.
2. The automatic detection and analysis system for volatile organic compounds according to claim 1, wherein: the detection terminal comprises a detection module, a spherical base (1) and a detection pipeline (2), wherein the detection module is arranged below the spherical base (1) and is communicated with the interior of the detection pipeline (2) through the spherical base (1); the detection pipeline (2) comprises a lower pipe body (2-1), a middle pipe body (2-2) and an upper pipe body (2-3) which are connected with each other from bottom to top, wherein the lower pipe body (2-1) and the upper pipe body (2-3) are telescopic pipe bodies, the middle pipe body (2-2) is a bendable pipe body, a lower pipe body inlet regulator (2-11) and a lower pipe body locking device (2-12) are arranged at the connecting position of the lower pipe body (2-1) and the middle pipe body (2-2), and an upper pipe body inlet regulator (2-21) and an upper pipe body locking device (2-22) are arranged at the connecting position of the upper pipe body (2-3) and the middle pipe body (2-2).
3. The automatic detection and analysis system for volatile organic compounds according to claim 1, wherein: during primary rechecking and secondary rechecking, the detection base station which controls the real-time detection result to exceed the corresponding preset threshold range adjusts the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) of the corresponding detection terminal of the detection base station, and the bending angle of the middle pipe body (2-2).
4. The automatic detection and analysis system for volatile organic compounds according to claim 3, wherein: the adjustable range of the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) and the bending angle of the middle pipe body (2-2) of the detection terminal in the primary rechecking process is larger than the adjustable range of the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) and the bending angle of the middle pipe body (2-2) of the detection terminal in the secondary rechecking process.
5. The automatic detection and analysis system for volatile organic compounds according to claim 3, wherein: the actual adjusting amplitude of the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) and the bending angle of the middle pipe body (2-2) of the detection terminal in the first rechecking process is larger than the actual adjusting amplitude of the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) and the bending angle of the middle pipe body (2-2) of the detection terminal in the second rechecking process.
6. The automatic detection and analysis system for volatile organic compounds according to claim 3, wherein: the adjustment priority of the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) of the detection terminal is later than that of the bending angle of the middle pipe body (2-2) in one rechecking.
7. The automatic detection and analysis system for volatile organic compounds according to claim 3, wherein: the adjusting priority of the telescopic length of the lower pipe body (2-1) and the upper pipe body (2-3) of the detection terminal is higher than that of the bending angle of the middle pipe body (2-2) during secondary rechecking.
8. An automatic detection and analysis method for volatile organic compounds is characterized in that: the method comprises the following steps:
1) each detection base station detects the concentration of a plurality of corresponding volatile organic compounds and sends the detection result to a detection master station;
2) the detection master station judges whether the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station exceeds the corresponding preset threshold range; if not, entering step 3), and if exceeding, entering step 4);
3) when the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station is judged not to exceed the corresponding preset threshold range, the type, the preset threshold range, the real-time detection result and the comparison result of the volatile organic compounds detected by each detection base station are displayed in the detection master station according to a preset priority display sequence;
4) when the real-time detection result of the volatile organic compounds of the corresponding type in each detection base station is judged to exceed the corresponding preset threshold range, the types of the detected volatile organic compounds are reordered from large to small according to the ratio of the exceeding numerical value absolute value to the preset threshold absolute value;
5) performing one-time rechecking on the detection results of the detection base stations with the real-time detection results exceeding the corresponding preset threshold range, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after one-time rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results;
6) performing secondary rechecking on the detection results of the detection base stations of which the real-time detection results still exceed the corresponding preset threshold range after the primary rechecking, and sequentially displaying the types of the volatile organic compounds detected by each detection base station after the secondary rechecking, the preset threshold range, the real-time detection results and the comparison results according to the reordering results;
7) and correspondingly alarming the detection base station of which the real-time detection result still exceeds the corresponding preset threshold range after the secondary rechecking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010276718.9A CN111487368B (en) | 2020-04-08 | 2020-04-08 | Automatic detection and analysis system and method for volatile organic compounds |
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