Indoor air intelligent detection management system based on constructional engineering

Abstract

The invention provides an indoor air intelligent detection management system based on constructional engineering, which comprises single detection modules, any single detection module is internally provided with a collection module and a detection module, the detection module is connected with the collection module, the detection module is used for detecting gas collected at a plurality of sampling points in any sampling inspection room, and the collection module is connected with the detection module; a multi-parameter environment monitor is arranged in the detection module, and a temperature sensor, a humidity sensor, a formaldehyde sensor and a volatile organic compound sensor are arranged in the multi-parameter environment monitor; the linkage cooperative control module is used for performing linkage control on a plurality of single detection modules in the same building under the unified time; and the management analysis module is connected with the linkage cooperative control module and the single detection module. According to the indoor air intelligent detection management system based on the constructional engineering, centralized monitoring and management of air quality of multiple areas can be achieved, and it is ensured that the air quality detection process in the building acceptance check process meets the high standard and high quality requirements.

Description

Technical Field

[0001] The present invention belongs to the technical field of building engineering quality inspection, and particularly relates to an intelligent indoor air detection and management system based on building engineering. Background Art

[0002] Good indoor air quality can improve people's work efficiency and quality of life. Therefore, the detection process of indoor air quality in building engineering quality inspection is particularly important. The intelligent indoor air detection and management system based on building engineering is a system integrating multiple sensors and intelligent control technologies, aiming to monitor and manage indoor air quality in real time.

[0003] Currently, the traditional indoor air detection process of building engineering requires steps such as manual sampling and laboratory analysis, which greatly affects the quality inspection efficiency of building engineering, and requires a large amount of human cost investment, resulting in high detection costs. It is impossible to detect all sampling points at the same time, leading to a high degree of difference in detection results. Summary of the Invention

[0004] In view of this, the present invention aims to propose an intelligent indoor air detection and management system based on building engineering to solve the problems that the indoor air detection process of building engineering requires steps such as manual sampling and laboratory analysis, which greatly affects the quality inspection efficiency of building engineering, and requires a large amount of human cost investment, resulting in high detection costs. It is impossible to detect all sampling points at the same time, leading to a high degree of difference in detection results.

[0005] To achieve the above object, the technical solution of the present invention is realized as follows:

[0006] The present invention provides an intelligent indoor air detection and management system based on construction engineering, including a single detection module, and several of them are provided. Any single detection module is provided with a collection module and a detection module. The collection module is used to collect the air in any randomly inspected room. The detection module is connected to the collection module, and the detection module is used to detect the gas collected at several sampling points in any randomly inspected room. A multi-parameter environmental monitor is provided in the detection module, and a temperature sensor, a humidity sensor, a formaldehyde sensor, and a volatile organic compound sensor are provided in the multi-parameter environmental monitor. A linkage and collaborative control module is used to perform linkage control on several single detection modules in the same building at the same time, including dynamically controlling several selected pump suction collectors, and maintaining the pump suction collectors open until the sampling process ends during the sampling process, and maintaining the data transmission of the detection modules at several sampling points during the process of performing air quality scoring. A management and analysis module is connected to the linkage and collaborative control module and the single detection module. The management and analysis module calculates the real-time indoor air quality score and the single air quality score according to the detection results of the temperature sensor, the humidity sensor, the formaldehyde sensor, and the volatile organic compound sensor, and outputs the intelligent indoor air detection result and the abnormal sampling point table according to the scoring results.

[0007] Further, the air inlet in the collection module is used to collect the air in the randomly inspected room. It is connected to the pump suction collector through an installation thread. The upper part of the air inlet is connected to the gas storage tank through a fastening screw. A collector is provided in the gas storage tank. The top flange of the gas storage tank is connected to a cap through a fastening screw. The cap is U-shaped. The top of the cap is fixed to the bottom of the dust-proof cap. A fixed joint is provided on the upper cover. The upper cover is fixed in the dust-proof cap and on the top of the top flange of the gas storage tank. The bottom of the upper cover is fixed with a collection plate. The collection plate is connected to the probe through a connecting wire. An exhaust port and an inflation port are provided on the upper cover. The probe is provided on the side of the gas storage tank. The probe real-time detects the real-time sampling air pressure in the gas storage tank. The collection plate integrates a multi-parameter environmental monitor.

[0008] Further, the linkage and collaborative control module is connected to the pump suction collector. There are several pump suction collectors in any randomly inspected room. Each pump suction collector has a unique pump suction collector code stored in a single detection module. The pump suction collector code is set according to the location in the randomly inspected room. The single detection module calculates the number of sampling points required for the randomly inspected room based on the actual area of the randomly inspected room and the type to which the randomly inspected room belongs, and transmits the number of sampling points to the linkage and collaborative control module. Then, several pump suction collector codes based on the number of sampling points are selected in the linkage and collaborative control module, and a preset sampling duration is calculated for each pump suction collector. The preset sampling duration of the single detection module is calculated based on the preset collection flow rate, pollution load coefficient, and minimum sampling time of a single pump suction collector. The pollution load coefficient is related to the building type to which the randomly inspected room belongs.

[0009] Further, the process of the linkage and collaborative control module dynamically controlling several pump suction collectors in the randomly inspected room is divided into two stages, including the pre-detection stage and the main detection stage. In the pre-detection stage, the linkage and collaborative control module controls several controlled pump suction collectors to start sampling for the pre-detection duration, and controls the pump suction collectors to close at the end of the pre-detection stage. The control detection module performs dynamic adjustment calculations on the sampling duration and the number of sampling points for the formaldehyde concentration and volatile organic compound concentration. During the calculation process, the temperature correction coefficient and humidity correction coefficient are used to correct the results. The pre-detection duration is half of the preset sampling duration. In the main detection stage, according to the dynamic adjustment calculation results in the pre-detection stage, the linkage and collaborative control module changes the sampling time duration and the number of sampling points again for several pump suction collectors in the randomly inspected room, then controls several controlled pump suction collectors to start until the changed duration, and controls the pump suction collectors to close at the end of the main detection stage. The control detection module calculates the real-time indoor air quality score and the single air quality score for the temperature, humidity, formaldehyde concentration, and volatile organic compound concentration.

[0010] Further, in the pre-detection stage and the main detection stage, the probe continuously detects the real-time sampling air pressure in the gas storage tank. A real-time sampling air pressure maximum threshold and a safety air pressure ratio are set in the linkage and collaborative control module. Before the timer in the linkage and collaborative control module detects that the sampling duration has been reached, the real-time sampling air pressure ratio is calculated by dividing the real-time sampling air pressure by the real-time sampling air pressure maximum threshold, and the real-time sampling air pressure ratio is compared with the safety air pressure ratio. When the real-time sampling air pressure ratio is greater than or equal to the safety air pressure ratio, the linkage and collaborative control module determines that the sampling process is over, closes the pump suction collector, and the detection module starts to perform air quality component detection.

[0011] Further, after the control pump suction collector is closed, the detection module starts to detect the air quality components. At this time, the valve set at the air inlet of the collection module is closed, and the valve set at the exhaust port is opened, and the gas enters the multi-parameter environmental monitor in the detection module; in the multi-parameter environmental monitor, the temperature sensor detects the real-time temperature of the sampling point in real time, the humidity sensor detects the real-time humidity of the sampling point in real time, the formaldehyde sensor detects the real-time formaldehyde concentration of the sampling point in real time, and the volatile organic compound sensor detects the real-time volatile organic compound concentration of the sampling point in real time; the management and analysis module calculates the real-time indoor air quality score and the single air quality score according to the data detected by the multi-parameter environmental monitor in a single detection module. The real-time indoor air quality score and the single air quality score are calculated according to the data detected by the temperature sensor, humidity sensor, formaldehyde sensor, and volatile organic compound sensor. At the same time, data transmission is carried out through the linkage and collaborative control module during the analysis process of the management and analysis module.

[0012] Further, there are several air quality score coefficients in the management and analysis module, including a temperature score coefficient set for the real-time temperature of the sampling point, a humidity score coefficient set for the real-time humidity of the sampling point, a first concentration score coefficient set for the real-time formaldehyde concentration of the sampling point, and a second concentration score coefficient set for the real-time volatile organic compound concentration of the sampling point. The real-time indoor air quality score is comprehensively calculated according to the real-time temperature, real-time humidity, real-time formaldehyde concentration, real-time volatile organic compound concentration of several sampling points, the air quality score coefficients, and the total number of sampling points; an indoor air quality score threshold is set in the management and analysis module, including a first air quality score threshold and a second air quality score threshold, and the first air quality score threshold is less than the second air quality score threshold. When the real-time indoor air quality score is less than the first air quality score threshold, it is judged that the real-time indoor air quality of the building where the sampling point is located this time is unqualified; when the real-time indoor air quality score is greater than the second air quality score threshold, it is judged that the real-time indoor air quality of the building where the sampling point is located this time is qualified, and the single detection item score check continues.

[0013] Further, a single-item scoring threshold is set for any single detection item within the management analysis module, including a first single-item scoring threshold and a second single-item scoring threshold, and the first single-item scoring threshold is less than the second single-item scoring threshold; if the score of a single detection item at any sampling point is less than the first single-item scoring threshold, it is determined that the quality of the single item corresponding to this sampling point is unqualified, recorded, and the detection result of the next sampling point is judged; if the score of a single detection item at any sampling point is greater than the second single-item scoring threshold, it is determined that the quality of the single item corresponding to this sampling point is qualified, and the detection result of the next sampling point is continued to be judged. After all the detection items within this sampling point are judged, all unqualified items are summarized, and an abnormal sampling point position table is exported.

[0014] Further, the temperature scoring coefficient is related to the temperature range threshold within the management analysis module. The temperature range threshold includes a first temperature threshold and a second temperature threshold, and the first temperature threshold is less than the second temperature threshold. When the real-time temperature is greater than the second temperature threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time temperature of any sampling point and the second temperature threshold; when the real-time temperature is less than the second temperature threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time temperature of any sampling point and the first temperature threshold; when the real-time temperature is between the first temperature threshold and the second temperature threshold, the temperature scoring coefficient is 1 and the temperature detection score is 100; the humidity scoring coefficient is related to the humidity range threshold within the management analysis module. The humidity range threshold includes a first humidity threshold and a second humidity threshold, and the first humidity threshold is less than the second humidity threshold; when the real-time humidity is greater than the second humidity threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time humidity of any sampling point and the second humidity threshold; when the real-time humidity is less than the first humidity threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time humidity of any sampling point and the first humidity threshold; when the real-time humidity is between the first humidity threshold and the second humidity threshold, the humidity scoring coefficient is 1 and the humidity detection score is 100.

[0015] Further, the first concentration scoring coefficient is related to the formaldehyde concentration threshold in the management analysis module; when the real-time formaldehyde concentration is less than or equal to the formaldehyde concentration threshold, the first concentration scoring coefficient is 1 and the formaldehyde concentration detection score is 100; when the real-time formaldehyde concentration is greater than the formaldehyde concentration threshold, the first concentration scoring coefficient is inversely proportional to the absolute value of the difference between the real-time formaldehyde concentration and the formaldehyde concentration threshold; the second concentration scoring coefficient is related to the volatile compound concentration threshold in the management analysis module; when the real-time volatile compound concentration is less than or equal to the volatile compound concentration threshold, the second concentration scoring coefficient is 1 and the volatile compound concentration detection score is 100; when the real-time volatile compound concentration is greater than the volatile compound concentration threshold, the second concentration scoring coefficient is inversely proportional to the absolute value of the difference between the real-time volatile compound concentration and the volatile compound concentration threshold; a limit concentration ratio value is set in the management analysis module, and when the real-time formaldehyde concentration or the real-time volatile compound concentration is greater than the limit concentration threshold calculated by its corresponding concentration threshold and the limit concentration ratio value, the corresponding detection item score is 0.

[0016] Compared with the prior art, the indoor air intelligent detection and management system based on building engineering of the present invention has the following advantages:

[0017] (1) In the present invention, the linkage and cooperation control module can make the operation of the indoor air intelligent detection and management system in the building more coordinated and consistent through the linkage control of the detection module and the mobile phone module, reduce the mutual interference and conflict between devices, and improve the overall operation efficiency of the devices. The linked indoor air detection and management system can centrally transmit and process the data of each sampling point to form a unified data table, so as to realize the centralized monitoring and management of the air quality in multiple areas.

[0018] (2) In the present invention, the sensors are integrated on the acquisition board, which can real-time monitor the temperature of each sampling point, ensure the real-time and accuracy of the data, detect multiple sampling points in different areas of the building, ensure that the temperature detection results of each area meet the standards, select representative sampling points when selecting sampling points, and ensure the comprehensiveness and representativeness of the detection results. Generate a detailed abnormal sampling point table according to the summarized data, including the unqualified items of each sampling point, and ensure that the air quality detection process during the building acceptance process meets the high standards and high-quality requirements. Description of the Drawings

[0019] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0020] In the drawings:

[0021] Figure 1Schematic diagram of the internal structure of the indoor air intelligent detection and management system based on construction projects according to the embodiments of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the detection module in the indoor air intelligent detection and management system based on construction projects according to the embodiments of the present invention;

[0023] Figure 3 Axonometric schematic diagram of the collection device in the indoor air intelligent detection and management system based on construction projects according to the embodiments of the present invention;

[0024] Figure 4 Cross-sectional schematic diagram of the collection device in the indoor air intelligent detection and management system based on construction projects according to the embodiments of the present invention;

[0025] Figure 5 Analysis report chart of the concentration of volatile organic compounds collected at sampling point 1 in the embodiment;

[0026] Figure 6 Analysis report chart of the concentration of volatile organic compounds collected at sampling point 2 in the embodiment.

[0027] Explanation of reference numerals:

[0028] 1, dust-proof cap; 2, exhaust port; 3, connecting wire; 4, probe; 5, fastening screw; 6, air inlet; 7, installation thread; 8, collector; 9, gas storage tank; 10, acquisition board; 11, inflation port; 12, joint; 13, cap clip. Detailed implementation manners

[0029] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "linkage" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

[0032] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0033] Referring to Figures 1-4 As shown, this embodiment provides an intelligent indoor air detection and management system based on construction engineering, including a single detection module, and there are several of them. Any single detection module is provided with a collection module and a detection module. The collection module is used to collect the air in any randomly inspected room; the detection module is connected to the collection module and is used to detect the gas collected at several sampling points in any randomly inspected room. The detection module is provided with a multi-parameter environmental monitor, and the multi-parameter environmental monitor is provided with a temperature sensor, a humidity sensor, a formaldehyde sensor, and a volatile organic compound sensor; a linkage and collaborative control module, which is used to perform linkage control on several single detection modules in the same building at the same time, including dynamically controlling the selected several pump suction collectors, and maintaining the pump suction collectors open until the sampling process ends during the sampling process, and maintaining the data transmission of the detection modules at several sampling points during the process of air quality scoring; a management and analysis module, which is connected to the linkage and collaborative control module and the single detection module. The management and analysis module calculates the real-time indoor air quality score and the single air quality score according to the detection results of the temperature sensor, the humidity sensor, the formaldehyde sensor, and the volatile organic compound sensor, and outputs the intelligent indoor air detection result and the abnormal sampling point table according to the scoring results.

[0034] Specifically, in this embodiment, the air inlet 6 in the collection module is used to collect the air in the randomly inspected room, and it is connected to the pump suction collector through the installation thread 7. The upper part of the air inlet 6 is connected to the gas storage tank 9 through the fastening screw 5. The gas storage tank 9 is provided with a collector 8. The top flange of the gas storage tank 9 is connected to the cap clip 13 through the fastening screw 5. The cap clip 13 is U-shaped. The top of the cap clip 13 is fixedly connected to the bottom of the dust-proof cap 1. The upper cover is fixedly connected with the fixed joint 12. The upper cover is fixed inside the dust-proof cap 1 and on the top of the top flange of the gas storage tank 9. The bottom of the upper cover is fixedly connected with the acquisition board 10. The acquisition board 10 is connected to the probe 4 through the connection line 3. The upper cover is provided with an exhaust port 2 and an inflation port 11. The probe 4 is arranged on the side of the gas storage tank 9. The probe 4 detects the real-time sampling air pressure in the gas storage tank in real time. The acquisition board 10 integrates a multi-parameter environmental monitor.

[0035] Specifically, in this embodiment, the linkage and collaborative control module is connected to the pump suction collector. There are several pump suction collectors in any randomly inspected room. Each pump suction collector has a unique pump suction collector code stored in a single detection module. The pump suction collector code is set according to the location in the randomly inspected room. The single detection module calculates the number of sampling points required for the randomly inspected room based on the actual area of the randomly inspected room and the type to which the randomly inspected room belongs, and transmits the number of sampling points to the linkage and collaborative control module. Then, several pump suction collector codes based on the number of sampling points are selected in the linkage and collaborative control module, and a preset sampling duration is calculated for each pump suction collector. The preset sampling duration of the single detection module is calculated based on the preset collection flow rate of a single pump suction collector, the pollution load coefficient, and the minimum sampling time. The pollution load coefficient is related to the building type to which the randomly inspected room belongs.

[0036] Through the linkage control of the detection module and the mobile phone module, the linkage and collaborative control module can make the operation of the indoor air intelligent detection and management system in the building more coordinated, reduce the mutual interference and conflicts between devices, and improve the overall operation efficiency of the devices. The linkage-controlled indoor air detection and management system can centrally transmit and process the data of each sampling point to form a unified data table, thereby realizing the centralized monitoring and management of the air quality in multiple areas.

[0037] Specifically, in this embodiment, the process of the linkage and collaborative control module dynamically controlling several pump suction collectors in the randomly inspected room is divided into two stages, including the pre-detection stage and the main detection stage. In the pre-detection stage, the linkage and collaborative control module controls several pump suction collectors to start sampling for the pre-detection duration, and controls the pump suction collectors to close at the end of the pre-detection stage. The control detection module performs dynamic adjustment calculations on the sampling duration and the number of sampling points for the formaldehyde concentration and volatile organic compound concentration. During the calculation process, the temperature correction coefficient and the humidity correction coefficient are used to correct the results. The pre-detection duration is half of the preset sampling duration. In the main detection stage, according to the dynamic adjustment calculation results in the pre-detection stage, the linkage and collaborative control module changes the sampling time duration and the number of sampling points for several pump suction collectors in the randomly inspected room again. Then, it controls several pump suction collectors to start until the changed duration, and controls the pump suction collectors to close at the end of the main detection stage. The control detection module calculates the real-time indoor air quality score and the single air quality score for the temperature, humidity, formaldehyde concentration, and volatile organic compound concentration.

[0038] Specifically, in this embodiment, during the pre-detection stage and the main detection stage, the probe real-time detects the real-time sampled air pressure in the gas storage tank. In the linkage collaborative control module, a maximum threshold of the real-time sampled air pressure and a safety air pressure ratio are set. Before the timer in the linkage collaborative control module detects that the sampling duration is reached, the real-time sampled air pressure ratio is calculated by dividing the real-time sampled air pressure by the maximum threshold of the real-time sampled air pressure, and the real-time sampled air pressure ratio is compared with the safety air pressure ratio. When the real-time sampled air pressure ratio is greater than or equal to the safety air pressure ratio, the linkage collaborative control module determines that the sampling process is over, closes the pump suction collector, and the detection module starts to detect the air quality components.

[0039] During actual sampling, a dynamic sampling point allocation algorithm is adopted: (1) Input: the area of the room to be sampled and the type to which the room to be sampled belongs; (2) Output: the number of sampling points n and the sampling point position coordinates (x, y). Each pump suction collector is encoded and bound with a spatial position label (such as F5-203-NE indicating the northeast corner of Room 203 on the 5th floor). The rooms to be sampled are dynamically grouped according to the sampling time, and the devices within the group are started and stopped synchronously. Intermittent sampling is adopted: activate for 1 minute every 10 minutes with an interval time to reduce energy consumption during long-term monitoring.

[0040] Sampling point number calculation model:

[0041] In the formula, S 房间 is the area of the room to be sampled, with the unit of m 2 ; α is the density coefficient, with the default value of α being 0.5 and it is changed according to the building type to which the room to be sampled belongs. When the room to be sampled is a laboratory / hospital, α is increased to 0.8 for dense sampling in high-risk areas. When the room to be sampled is a warehouse / garage, α is decreased to 0.3 for sparse sampling in low-activity areas; N is the number of sampling points. The number of indoor environmental pollutant concentration detection points should be determined according to the area of the room to be inspected: when the usable area of the room is less than 50 m 2 , the number of detection points is 1; when the usable area of the room is (50 - 100) m 2 , the number of detection points is 2; when the usable area of the room is (100 - 500) m 2 , the number of detection points is not less than 3; when the usable area of the room is (500 - 1000) m 2 , the number of detection points is not less than 5; when the usable area of the room is (1000 - 3000) m 2 , the number of detection points is not less than 6; when the usable area of the room is greater than or equal to 3000 m 2 , the number of detection points is not less than 3 for every 1000 m 2 .

[0042] Preset sampling duration of a single detection module: In the formula, t sampleis the preset sampling duration, with the unit of min; Q is the preset collection flow rate of a single pump suction collector, with the unit of L / min; β is the pollution load coefficient, and its default value is 1.2 and it changes according to the building type to which the room belongs. When the sampled room is a laboratory / hospital, β is increased to 1.8. When the sampled room is a warehouse / garage, β is decreased to 0.8; t min is the minimum sampling time, which is set to t min = 2 min, and the minimum sampling time is set to ensure the basic sampling data.

[0043] The sampling is divided into two stages: ① Pre-detection stage: At this time, all pump suction collectors are turned on for 0.5t sample , and during the sampling process, dynamic adjustment calculations of the sampling duration and the number of sampling points are carried out for temperature, humidity, formaldehyde concentration, and volatile organic compound concentration; ② Main detection stage: Dynamic adjustment according to the pre-detection results: Based on the results of the pre-forecast stage, a secondary judgment is made. For high-pollution areas, the sampling time is extended to 1.5t sample , and for low-pollution areas, the number of sampling points is reduced to (n - 1). When making the secondary judgment, the concentration variance of pollutants at each point is calculated based on the concentration fluctuation of a single detection item, and additional sampling is carried out for high-fluctuation areas, including extending the sampling time to 1.5t sample , and the additional number of sampling points is N'=(N + 0.2N).

[0044] When sampling m rooms in any building at the same time, m = 1, 2,... M, and m is a positive integer. For a certain m value, that is, the concentration variance of the single-point detection value under the same sampled rooms: In the formula, σ 2 is the pollutant concentration variance after temperature and humidity correction, which reflects the degree of dispersion of the detection value relative to the mean value after considering the influence of temperature and humidity, with the unit of mg / m 3 , and the detection object is formaldehyde or volatile organic compounds; k is the number of the sampling point, k = 1, 2,... r, and r is a positive integer; C i，k is the detection value of the kth time at the ith sampling point, with the unit of mg / m 3 ; i is the number of the sampling point, i = 1, 2,... N, and i is a positive integer; u j is the mean value of the Nth measurement at this sampling point; N is the number of measurements, indicating the total number of measurements for the ith sampling point; f T is the temperature correction coefficient, which is a coefficient related to the real-time temperature T i and is used to correct the influence of temperature on the detected concentration; f S is the humidity correction coefficient, which is a coefficient related to the real-time humidity S i and is used to correct the influence of humidity on the detected concentration. The temperature correction coefficient f T and the humidity correction coefficient fS Based on the actual detection environment as the main basis.

[0045] Taking 3 randomly inspected rooms (A: 200㎡ office, B: 500㎡ laboratory, C: 300㎡ warehouse) as an example: ① Initialization during sampling: Input room parameters, and the system allocates sampling points (A: 3 points, B: 7 points, C: 5 points). ② Synchronous startup: All pump suction collectors are activated by coding groups. ③ Dynamic adjustment: The sampling time of the laboratory group is extended. It is pre-detected that the volatile organic compounds in the warehouse exceed the standard, and 2 new sampling points are added for main detection.

[0046] The concentrations of volatile organic compounds obtained after actual collection and analysis are as follows Figure 5 、 Figure 6 shown. Volatile organic compounds (source: volatile organic compounds released from coatings, adhesives, and furniture), Figure 5 , Sampling point 1 is the Science and Culture Center of Bohai Oilfield (Exhibition Hall), on July 25, 2022, the sampling time is 12:46:59, and the specific components are shown in Table 1 below. Figure 6 , Sampling point 2 is Office 03 on the first floor of the Science and Culture Center of Bohai Oilfield (Exhibition Hall), the sampling time is July 23, 2022, 8:53:31, and the specific components are shown in Table 2 below.

[0047] Table 1

[0048]

[0049] Table 2

[0050]

[0051] Specifically, in this embodiment, after the pump suction collector is controlled to close, the detection module starts to detect the air quality components. At this time, the valve set at the air inlet of the collection module is closed, and the valve set at the exhaust port is opened, and the gas enters the multi-parameter environmental monitor in the detection module; in the multi-parameter environmental monitor, the temperature sensor real-time detects the real-time temperature of the sampling point, the humidity sensor real-time detects the real-time humidity of the sampling point, the formaldehyde sensor real-time detects the real-time formaldehyde concentration of the sampling point, and the volatile organic compound sensor real-time detects the real-time volatile organic compound concentration of the sampling point; the management and analysis module calculates the real-time indoor air quality score and the single air quality score according to the data detected by the multi-parameter environmental monitor in a single detection module. The real-time indoor air quality score and the single air quality score are calculated according to the data detected by the temperature sensor, humidity sensor, formaldehyde sensor, and volatile organic compound sensor. At the same time, data transmission is carried out through the linkage and coordination control module during the analysis process in the management and analysis module.

[0052] Specifically, in this embodiment, there are several air quality scoring coefficients in the management analysis module, including a temperature scoring coefficient set for the real-time temperature of the sampling point, a humidity scoring coefficient set for the real-time humidity of the sampling point, a first concentration scoring coefficient set for the real-time formaldehyde concentration of the sampling point, and a second concentration scoring coefficient set for the real-time concentration of volatile organic compounds of the sampling point. The real-time indoor air quality score is comprehensively calculated based on the real-time temperature, real-time humidity, real-time formaldehyde concentration, real-time concentration of volatile organic compounds of several sampling points, the air quality scoring coefficients, and the total number of sampling points. An indoor air quality scoring threshold is set in the management analysis module, including a first air quality scoring threshold and a second air quality scoring threshold, and the first air quality scoring threshold is less than the second air quality scoring threshold. When the real-time indoor air quality score is less than the first air quality scoring threshold, it is determined that the real-time indoor air quality of the building where the current sampling point is located is unqualified. When the real-time indoor air quality score is greater than the second air quality scoring threshold, it is determined that the real-time indoor air quality of the building where the current sampling point is located is qualified, and the scoring and investigation of a single detection item continue.

[0053] Specifically, in this embodiment, a single-item scoring threshold is set for any single detection item in the management analysis module, including a first single-item scoring threshold and a second single-item scoring threshold, and the first single-item scoring threshold is less than the second single-item scoring threshold. If the score of a single detection item at any sampling point is less than the first single-item scoring threshold, it is determined that the quality of the single item corresponding to this sampling point is unqualified, and it is recorded and the detection result of the next sampling point is judged. If the score of a single detection item at any sampling point is greater than the second single-item scoring threshold, it is determined that the quality of the single item corresponding to this sampling point is qualified, and the detection result of the next sampling point is judged. After all the detection items at this sampling point are judged, all unqualified items are summarized, and an abnormal sampling point table is exported.

[0054] In real-time, the abnormal situations of several sampling points are summarized and processed, which is convenient for subsequent secondary detection or key detection, so as to eliminate the abnormal detection results caused by the collection device, and is convenient for multiple sampling detections and comparisons to achieve the purpose of comprehensive detection and reduce detection errors, thereby improving the quality of building indoor air quality detection.

[0055] Specifically, in this embodiment, the temperature scoring coefficient is related to the temperature range threshold in the management analysis module. The temperature range threshold includes a first temperature threshold and a second temperature threshold, and the first temperature threshold is less than the second temperature threshold. When the real-time temperature is greater than the second temperature threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time temperature of any sampling point and the second temperature threshold; when the real-time temperature is less than the second temperature threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time temperature of any sampling point and the first temperature threshold; when the real-time temperature is between the first temperature threshold and the second temperature threshold, the temperature scoring coefficient is 1 and the temperature detection score is 100. The humidity scoring coefficient is related to the humidity range threshold in the management analysis module. The humidity range threshold includes a first humidity threshold and a second humidity threshold, and the first humidity threshold is less than the second humidity threshold; when the real-time humidity is greater than the second humidity threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time humidity of any sampling point and the second humidity threshold; when the real-time humidity is less than the first humidity threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time humidity of any sampling point and the first humidity threshold; when the real-time humidity is between the first humidity threshold and the second humidity threshold, the humidity scoring coefficient is 1 and the humidity detection score is 100.

[0056] Specifically, in this embodiment, the first concentration scoring coefficient is related to the formaldehyde concentration threshold in the management analysis module; when the real-time formaldehyde concentration is less than or equal to the formaldehyde concentration threshold, the first concentration scoring coefficient is 1 and the formaldehyde concentration detection score is 100; when the real-time formaldehyde concentration is greater than the formaldehyde concentration threshold, the first concentration scoring coefficient is inversely proportional to the difference between the real-time formaldehyde concentration and the formaldehyde concentration threshold; the second concentration scoring coefficient is related to the volatile compound concentration threshold in the management analysis module; when the real-time volatile compound concentration is less than or equal to the volatile compound concentration threshold, the second concentration scoring coefficient is 1 and the volatile compound concentration detection score is 100; when the real-time volatile compound concentration is greater than the volatile compound concentration threshold, the second concentration scoring coefficient is inversely proportional to the difference between the real-time volatile compound concentration and the volatile compound concentration threshold; the management analysis module is provided with a limit concentration ratio value. When the real-time formaldehyde concentration or the real-time volatile compound concentration is greater than the limit concentration threshold calculated by its corresponding concentration threshold and the limit concentration ratio value, the corresponding detection item score is 0.

[0057] When performing scoring on the real-time temperature T i , real-time humidity S i , real-time formaldehyde concentration J i , and real-time volatile organic compound concentration V i of m rooms in any building at the same time, where m = 1, 2,..., M, m is a positive integer, and there are a total of N sampling points, where i is the number of the sampling point, i = 1, 2,..., N, i is a positive integer, and the value of the detection times k is the same at this time.

[0058] The temperature detection score P1 is as follows:

[0059] In the formula, P1 is the temperature detection score, with the unit of points. When T0' ≤ T i ≤ T0", the temperature detection score P1 is 100; n is the total number of sampling points; i is the number of the sampling point, i = 1, 2,... n, and i is a positive integer; TC i is the real-time temperature difference of any sampling point, with the unit of °C. And when T i < T0', TC i = T i - T0'. When T i > T0", TC i = T i - T0". Where T0' is the first temperature threshold and T0" is the second temperature threshold, both with the unit of °C; t i is the temperature scoring coefficient corresponding to the real-time temperature difference of any sampling point. When T i < T0' or T i > T0", the temperature scoring coefficient t i decreases as the absolute value of the real-time temperature difference TC i of any sampling point increases. The unit of the temperature scoring coefficient t i is °C / point. When T0' ≤ T i ≤ T0", the temperature scoring coefficient t i is 1.

[0060] The humidity detection score P2 is as follows:

[0061] In the formula, P2 is the humidity detection score, with the unit of points. When S0' ≤ S i ≤ S0", the humidity detection score P2 is 100; SC i is the real-time humidity difference of any sampling point, with the unit of %RH. And when S i < S0', then SC i = S i - S0'. When S i > S0", then SC i = S i - S0". Where S0' is the first humidity threshold and S0" is the second humidity threshold, both with the unit of %RH; s i is the humidity scoring coefficient corresponding to the real-time humidity difference of any sampling point. And when S i < S0' or S i > S0", the humidity scoring coefficient s i decreases as the real-time humidity difference SC idecreases as the absolute value increases, and the humidity scoring coefficient s i The unit of is points / %RH, S0'≤S i When ≤S0", the temperature scoring coefficient t i is 1.

[0062] The formaldehyde concentration detection score P3 is:

[0063] In the formula, P3 is the formaldehyde concentration detection score, the unit is points, J i When ≤J0, the formaldehyde concentration detection score P3 is 100, the limit concentration ratio value is q (q>1), then the limit concentration threshold of the formaldehyde real-time concentration is (J0·q). If J i >(J0·q), then the formaldehyde concentration detection score P3 is 0; J i is the formaldehyde real-time concentration at any sampling point, the unit is mg / m 3 ; J0 is the formaldehyde concentration threshold, the unit is mg / m 3 ; j i is the first concentration scoring coefficient corresponding to the formaldehyde real-time concentration at any sampling point, J i When J>J0, the first concentration scoring coefficient j i decreases as the formaldehyde real-time concentration J at any sampling point i increases, and at this time, When J i ≤J0, the first concentration scoring coefficient j i is 1, and the unit of the first concentration scoring coefficient j i is m 3 ·points / mg.

[0064] The volatile compound concentration detection score P4 is:

[0065] In the formula, P4 is the volatile compound concentration detection score, the unit is points, V i When ≤V0, the volatile compound concentration detection score P4 is 100, the limit concentration ratio value is q (q>1), then the limit concentration threshold of the volatile compound concentration is (V0·q). If V i >(V0·q), then the volatile compound concentration detection score P4 is 0; V i is the volatile compound real-time concentration at any sampling point, the unit is mg / m 3 ; V0 is the volatile compound concentration threshold, the unit is mg / m 3 ; v i is the second concentration scoring coefficient v corresponding to the volatile compound real-time concentration V at any sampling point i i i , V iWhen V > V0, the second concentration scoring coefficient v i decreases as the real-time concentration V of volatile compounds at any sampling point i increases, and at this time, V i When V ≤ V0, the second concentration scoring coefficient v i is 1, and the unit of the second concentration scoring coefficient v i is m 3 ·min / mg.

[0066] The real-time indoor air quality score P 总 is: P 总 = P1 + P2 + P3 + P4; P 总 is the total air quality score of each sampling point this time, and the unit is points.

[0067] Set air quality score thresholds in the management analysis module, including the first air quality score threshold Q1 and the second air quality score threshold Q2, and the first air quality score threshold Q1 is less than the second air quality score threshold Q2. When the real-time indoor air quality score P 总 is less than the first air quality score threshold Q1, it is determined that the air quality in the building where the sampling point is located this time is unqualified; when the real-time indoor air quality score P 总 is greater than the second air quality score threshold Q2, it is determined that the air quality in the building where the sampling point is located this time is qualified, and continue to conduct a single detection item score check.

[0068] The comprehensive score takes into account the interaction and comprehensive influence of multiple parameters, and can evaluate the indoor air quality more comprehensively. For example, temperature and humidity not only affect human comfort, but also affect the release rate of formaldehyde and volatile compounds. The comprehensive score can consider these factors comprehensively, provide a more accurate air quality assessment, and more intuitively reflect the overall situation of indoor air quality.

[0069] When checking the temperature detection score P1, the temperature detection score P at any sampling point i is ti : P ti = TC i × t i ; when checking the humidity detection score P2, the temperature detection score SC at any sampling point i is i : P si = SC i × s i ; when checking the formaldehyde concentration detection score P3, the formaldehyde concentration detection score P at any sampling point i is ji : P ji = |J i - J0| × j i; When troubleshooting the detection score P4 of volatile compound concentration, there is the detection score P of formaldehyde concentration at any sampling point i vi is: P vi = |V i - V0| × v i , the management and analysis module is provided with a single-item first scoring threshold P0' and a single-item second scoring threshold P0", and the single-item first scoring threshold P0' is less than the single-item second scoring threshold P0". If P t1 < P0', it is determined that the temperature detection quality corresponding to this sampling point is unqualified, recorded and the detection result of the next sampling point is judged; if P t1 > P0", it is determined that the temperature detection quality corresponding to this sampling point is qualified, and the temperature detection result of the next sampling point is continued to be judged. After all the detection items in this sampling point are judged, all unqualified items are summarized, and an abnormal sampling point table is exported. The scoring judgment process of other detection items is similar to the above temperature detection result and will not be elaborated here one by one.

[0070] The single detection score can accurately evaluate the status of a specific parameter. For example, the detection of temperature and humidity can intuitively reflect the comfort of the indoor environment, the detection of formaldehyde concentration is directly related to the release of indoor decoration materials, and the detection of volatile compound concentration can reveal whether there is volatilization of other harmful chemical substances indoors.

[0071] The sensors are integrated on the acquisition board, which can monitor the temperature of each sampling point in real time, ensuring the real-time and accuracy of the data. Multiple sampling points are detected in different areas of the building to ensure that the temperature detection results of each area meet the standards. Representative sampling points are selected when choosing sampling points to ensure the comprehensiveness and representativeness of the detection results. A detailed abnormal sampling point table is generated according to the summarized data, including the unqualified items of each sampling point, ensuring that the air quality detection process in the building acceptance process meets high standards and high-quality requirements.

[0072] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An indoor air intelligent detection and management system based on construction engineering, characterized in that: The invention comprises a single detection module, which is provided with several, any single detection module is provided with a collection module and a detection module, the collection module is used to collect the air in any sampled room; the detection module is connected to the collection module, the detection module is used to detect the gas collected at several sampling points in any sampled room, the detection module is provided with a multi-parameter environmental monitor, the multi-parameter environmental monitor is provided with a temperature sensor, a humidity sensor, a formaldehyde sensor, and a volatile organic compound sensor; a linkage and collaborative control module, which is used to perform linkage control on several single detection modules at the same time in the same building, including dynamically controlling several selected pump-suction collectors, and maintaining the pump-suction collectors open during the sampling process until the sampling process is completed, and maintaining the data transmission of the detection modules in several sampling points during the air quality scoring process; a management and analysis module, which is connected to the linkage and collaborative control module and the single detection module, and the management and analysis module calculates the real-time indoor air quality score and the single air quality score according to the detection results of the temperature sensor, the humidity sensor, the formaldehyde sensor, and the volatile organic compound sensor, and outputs the indoor air intelligent detection result and the abnormal sampling point table according to the scoring result.

2. The indoor air intelligent detection and management system based on construction engineering according to claim 1 is characterized in that: The air inlet (6) in the collection module is used to collect the air in the sampling room, and is connected to the pump-suction collector through the installation thread (7). The upper part of the air inlet (6) is connected to the gas storage tank (9) through the fastening screw (5). The gas storage tank (9) is provided with a collector (8). The top flange of the gas storage tank (9) is connected to the cap clamp (13) through the fastening screw (5). The cap clamp (13) is U-shaped. The top of the cap clamp (13) is fixed to the bottom of the dust cap (1), and the upper cover is fixed with a joint. (12), the upper cover is fixed in the dust cap (1) and at the top of the top flange of the gas storage tank (9), a collection board (10) is fixed at the bottom of the upper cover, the collection board (10) is connected to the probe (4) through a connecting line (3), an exhaust port (2) and an air filling port (11) are arranged on the upper cover, the probe (4) is arranged on the side of the gas storage tank (9), the probe (4) detects the real-time sampling air pressure in the gas storage tank in real time, and the collection board (10) integrates a multi-parameter environmental monitoring instrument.

3. The indoor air intelligent detection and management system based on construction engineering according to claim 1 is characterized in that: The linkage collaborative control module is connected to the pump-suction collector. There are several pump-suction collectors in any sampling room. Any pump-suction collector has a unique pump-suction collector code in the single detection module. The pump-suction collector code is set according to the position in the sampling room. The single detection module calculates the number of sampling points required for the sampling room according to the actual area of ​​the sampling room and the type of the sampling room, and transmits the number of sampling points to the linkage collaborative control module, and selects several pump-suction collector codes based on the number of sampling points in the linkage collaborative control module, and calculates the preset sampling time for any pump-suction collector. The preset sampling time of the single detection module is calculated according to the preset collection flow, pollution load coefficient and minimum sampling time of the single pump-suction collector. The pollution load coefficient is related to the building type to which the sampling room belongs.

4. The indoor air intelligent detection and management system based on construction engineering according to claim 3 is characterized in that: The process of the linkage collaborative control module dynamically controlling several pump-suction collectors in the sampling room is divided into two stages, including a pre-detection stage and a main detection stage; in the pre-detection stage, the linkage collaborative control module controls several pump-suction collectors to start sampling for the pre-detection time, and controls the pump-suction collectors to close at the end of the pre-detection stage, and controls the detection module to dynamically adjust the sampling time and the number of sampling points for the formaldehyde concentration and the volatile organic compound concentration. The temperature correction coefficient and the humidity correction coefficient are used to correct the results during the calculation process. The pre-detection time is half of the preset sampling time; During the main detection phase, the sampling time and number of sampling points of several pump-suction collectors in the sampled room are changed again in the linkage collaborative control module according to the calculation results of the dynamic adjustment in the pre-detection phase. Then, several pump-suction collectors are controlled to be turned on until the changed duration, and at the end of the main detection phase, the pump-suction collectors are controlled to be closed. The control detection module calculates the real-time indoor air quality score and the single air quality score for the temperature, humidity, formaldehyde concentration, and volatile organic compound concentration.

5. The indoor air intelligent detection and management system based on construction engineering according to claim 4 is characterized in that: In the pre-detection stage and the main detection stage, the probe detects the real-time sampling air pressure in the gas tank in real time. The real-time sampling air pressure maximum threshold and the safety air pressure ratio are set in the linkage collaborative control module. When the timer in the linkage collaborative control module has not detected that the sampling time has been reached, the real-time sampling air pressure ratio is calculated by the real-time sampling air pressure and the real-time sampling air pressure maximum threshold, and the real-time sampling air pressure ratio is compared with the safety air pressure ratio. When the real-time sampling air pressure ratio is greater than or equal to the safety air pressure ratio, the linkage collaborative control module determines that the sampling process is over, closes the pump-suction collector, and the detection module starts to detect air quality components.

6. The indoor air intelligent detection and management system based on construction engineering according to claim 1 is characterized in that: After the pump-suction collector is controlled to be closed, the detection module starts to detect the air quality components. At this time, the valve set at the air inlet of the collection module is closed, and the valve set at the exhaust port is opened, and the gas enters the multi-parameter environmental monitor in the detection module; in the multi-parameter environmental monitor, the temperature sensor detects the real-time temperature of the sampling point in real time, the humidity sensor detects the real-time humidity of the sampling point in real time, the formaldehyde sensor detects the real-time formaldehyde concentration of the sampling point in real time, and the volatile organic compound sensor detects the real-time concentration of volatile organic compounds at the sampling point in real time; the management and analysis module calculates the real-time indoor air quality score and the single air quality score based on the data detected by the multi-parameter environmental monitor in the single detection module. The real-time indoor air quality score and the single air quality score are calculated based on the data detected by the temperature sensor, the humidity sensor, the formaldehyde sensor, and the volatile organic compound sensor. At the same time, during the analysis process of the management and analysis module, data is transmitted through the linkage and collaborative control module.

7. The indoor air intelligent detection and management system based on construction engineering according to claim 5 is characterized in that: The management and analysis module is provided with several air quality scoring coefficients, including a temperature scoring coefficient set for the real-time temperature of the sampling point, a humidity scoring coefficient set for the real-time humidity of the sampling point, a first concentration scoring coefficient set for the real-time formaldehyde concentration of the sampling point, and a second concentration scoring coefficient set for the real-time concentration of volatile organic compounds of the sampling point. The real-time indoor air quality score is comprehensively calculated according to the real-time temperature, real-time humidity, real-time formaldehyde concentration, and real-time concentration of volatile organic compounds of the several sampling points in combination with the air quality scoring coefficients and the total number of sampling points; the management and analysis module is provided with indoor air quality scoring thresholds, including a first air quality scoring threshold and a second air quality scoring threshold, and the first air quality scoring threshold is less than the second air quality scoring threshold. When the real-time indoor air quality score is less than the first air quality scoring threshold, it is judged that the real-time indoor air quality of the building where the sampling point is located is unqualified; when the real-time indoor air quality score is greater than the second air quality scoring threshold, it is judged that the real-time indoor air quality of the building where the sampling point is located is qualified, and the single detection item scoring and investigation is continued.

8. The indoor air intelligent detection and management system based on construction engineering according to claim 5 is characterized in that: In the management and analysis module, a single item scoring threshold is set for any single detection item, including a single item first scoring threshold and a single item second scoring threshold, and the single item first scoring threshold is less than the single item second scoring threshold; If the score of a single test item at any sampling point is less than the first score threshold of a single item, the quality of the single item corresponding to this sampling point is judged to be unqualified, and the test result of the next sampling point is recorded and judged; If the score of a single test item at any sampling point is greater than the second score threshold of a single item, the quality of the single item corresponding to this sampling point is judged to be qualified, and the judgment of the test result of the next sampling point is continued until the judgment of all test items in this sampling point is completed. All unqualified items are summarized and the abnormal sampling point table is exported.

9. The indoor air intelligent detection and management system based on construction engineering according to claim 7 is characterized in that: The temperature scoring coefficient is related to the temperature range threshold in the management and analysis module, and the temperature range threshold includes a first temperature threshold and a second temperature threshold, and the first temperature threshold is less than the second temperature threshold. When the real-time temperature is greater than the second temperature threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time temperature of any sampling point and the second temperature threshold; when the real-time temperature is less than the second temperature threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time temperature of any sampling point and the first temperature threshold; when the real-time temperature is between the first temperature threshold and the second temperature threshold, the temperature scoring coefficient is 1 and the temperature detection score is 100; The humidity scoring coefficient is related to the humidity range threshold in the management and analysis module, and the humidity range threshold includes a first humidity threshold and a second humidity threshold, and the first humidity threshold is less than the second humidity threshold; when the real-time humidity is greater than the second humidity threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time humidity at any sampling point and the second humidity threshold; when the real-time humidity is less than the first humidity threshold, the temperature scoring coefficient is inversely proportional to the absolute value of the difference between the real-time humidity at any sampling point and the first humidity threshold; when the real-time humidity is between the first humidity threshold and the second humidity threshold, the humidity scoring coefficient is 1 and the humidity detection score is 100.

10. The indoor air intelligent detection and management system based on construction engineering according to claim 7 is characterized in that: The first concentration scoring coefficient is related to the formaldehyde concentration threshold in the management and analysis module; when the real-time formaldehyde concentration is less than or equal to the formaldehyde concentration threshold, the first concentration scoring coefficient is 1 and the formaldehyde concentration detection score is 100; when the real-time formaldehyde concentration is greater than the formaldehyde concentration threshold, the first concentration scoring coefficient is inversely proportional to the absolute value of the difference between the real-time formaldehyde concentration and the formaldehyde concentration threshold; the second concentration scoring coefficient is related to the volatile compound concentration threshold in the management and analysis module; when the real-time concentration of the volatile compound is less than or equal to the volatile compound concentration threshold, the second concentration scoring coefficient is 1 and the volatile compound concentration detection score is 100; when the real-time concentration of the volatile compound is greater than the volatile compound concentration threshold, the second concentration scoring coefficient is inversely proportional to the absolute value of the difference between the real-time concentration of the volatile compound and the volatile compound concentration threshold; a limit concentration ratio value is provided in the management and analysis module, and when the real-time formaldehyde concentration or the real-time concentration of the volatile compound is greater than the corresponding concentration threshold and the limit concentration threshold calculated by the limit concentration ratio value, the corresponding detection item score is 0.

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