CN210322922U - Air quality detection system - Google Patents
Air quality detection system Download PDFInfo
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- CN210322922U CN210322922U CN201920110249.6U CN201920110249U CN210322922U CN 210322922 U CN210322922 U CN 210322922U CN 201920110249 U CN201920110249 U CN 201920110249U CN 210322922 U CN210322922 U CN 210322922U
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Abstract
The utility model belongs to the technical field of air quality detection, in particular to an air quality detection system, which comprises an air quality detection device, a cloud server and a user terminal, wherein the air quality detection device is in wireless communication connection with the cloud server and is provided with a negative oxygen ion sensor; the user terminal is in communication connection with the cloud server to obtain a detection result of the air quality detection device, wherein the detection result comprises the concentration of negative oxygen ions. The utility model discloses an air quality detection system is through the mode of cloud interconnection for air quality detection device's testing result can transmit to high in the clouds server, and then transmits to client terminal on, makes the user can acquire corresponding empty gas detection result conveniently.
Description
Technical Field
The utility model belongs to the technical field of the air quality detects, concretely relates to air quality detecting system.
Background
In recent years, environmental issues have become a topic of focus in society. Air quality is a more of a daily concern to the general public. PM2.5/PM10 particulate matters generated by atmospheric pollution and toxic gases such as formaldehyde generated by plant construction and decoration cause harm to human health. Therefore, monitoring the air quality is a powerful means for treating air pollution and improving air environment.
Many studies have been made on air quality detecting devices, and for example, patent document CN206696255U discloses a portable air quality detector and patent document CN203705425U discloses a portable air quality detecting device. However, most of the existing air quality detection devices focus on detecting one or more of air quality parameters such as formaldehyde concentration, temperature, humidity, PM2.5 and the like in the air, and the detection of negative oxygen ions in the air is rarely involved.
It is known that negative oxygen ions are free electrons formed by the separation of the electrons in the molecules of air from the molecules of air under the action of excitation energy, and the negative ions of air have health-care effect on human body, mainly manifested by regulating the functions of nervous system and cerebral cortex, strengthening metabolism, promoting blood circulation, improving the functions of heart, lung, brain and other organs, etc. In ecological environment evaluation, the concentration of negative oxygen ions in the air is listed as an important index for measuring the quality of the air, but the negative oxygen ions in the air are colorless and odorless, invisible and invisible, and can only be detected by corresponding equipment. For example, patent document CN207488221U discloses a nondestructive air negative oxygen ion detector, which includes a casing, an air duct, an induction electrode, a battery, and a circuit board disposed inside the casing; the air pipe is installed in the shell in a semi-embedded mode, the induction electrode is located in the center of the air pipe and forms a coaxial capacitor with the air pipe, the air pipe is electrically connected with the battery, and the battery is connected with the circuit board through a power line. However, the existing air negative oxygen ion detectors are all designed as a single machine, and users cannot conveniently acquire corresponding air quality detection data.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough that exists among the prior art, the utility model provides an air quality detecting system.
In order to achieve the purpose of the utility model, the utility model adopts the following technical scheme:
an air quality detection system comprises an air quality detection device, a cloud server and a user terminal, wherein the air quality detection device is in wireless communication connection with the cloud server and is provided with a negative oxygen ion sensor; the user terminal is in communication connection with the cloud server to obtain a detection result of the air quality detection device, wherein the detection result comprises the concentration of negative oxygen ions. The utility model discloses an air quality detection system is through the mode of cloud interconnection for air quality detection device's testing result can transmit to high in the clouds server, and then transmits to client terminal on, makes the user can acquire corresponding empty gas detection result conveniently.
Preferably, the air quality detection device comprises a housing, the negative oxygen ion sensor is arranged in the housing, and the housing is provided with an inlet and an outlet corresponding to an air duct I of the negative oxygen ion sensor.
Preferably, the negative oxygen ion sensor is obliquely arranged in the shell, and the inlet and the outlet of the first air duct are respectively positioned on two sides of the oblique direction of the negative oxygen ion sensor.
Preferably, the air quality detection device further comprises a comprehensive detection part arranged in the shell, and the shell is provided with an inlet and an outlet of the air duct II corresponding to the comprehensive detection part; the first air duct and the second air duct are the same air duct or are not overlapped.
Preferably, the integrated detection unit includes one or more of a carbon dioxide sensor, a carbon monoxide sensor, a PM2.5 sensor, a temperature sensor, a humidity sensor, a formaldehyde sensor, and a TVOC sensor.
As a preferred scheme, the shell comprises a cylinder body with openings at two ends, a base is arranged at the bottom opening of the cylinder body, and a top cover is arranged at the top opening of the cylinder body; the top of the base is provided with an annular step, and the bottom opening of the barrel is abutted against the annular step.
As a preferred scheme, a master control MCU is also arranged in the shell and is in communication connection with all the sensors; and the shell is provided with a display screen in communication connection with the master control MCU, and the display screen is used for displaying the detection results of the sensors.
Preferably, the air quality detection device further comprises a wireless module, the wireless module is in communication connection with the main control MCU, and the wireless module is used for being in wireless communication connection with the cloud server and/or the user terminal.
As a preferred scheme, an indicator lamp is arranged on the shell and is in communication connection with the master control MCU, and the indicator lamp is used for indicating the air quality of the current environment.
As a preferred scheme, the main control MCU comprises a receiving module, a calculating module, a comparing module and a signal control module, wherein the receiving module is used for receiving the detection results of each sensor; the calculation module is used for matching the concentration of the pollutants detected by each sensor and the concentration of the negative oxygen ions with an air quality index calculation formula to obtain a current air quality index; the comparison module is used for comparing the current air quality index with a preset threshold range; if the current air quality index is lower than the minimum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a first color; if the current air quality index is within the preset threshold range, the signal control module is used for controlling the indicator lamp to display a second color; if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a third color;
wherein, the air quality index calculation formula is as follows:
wherein AQI is air quality index, α is preset proportionality coefficient, c is concentration of negative oxygen ion in current environment, c is air quality index0Is a preset negative oxygen ion concentration limit value,
it is required to satisfy the conditions that i is less than 1, i is the serial number of the pollutant,
λiis the contamination index, k, of the i-th contaminantiIs the weight coefficient of the i-th contaminant, ciIs the concentration of the i-th contaminant, siIs the limit value of the concentration of the i-th pollutant and n is the number of the types of pollutants.
Compared with the prior art, the utility model, beneficial effect is:
the utility model discloses an air quality detection system is through the mode of cloud interconnection for air quality detection device's testing result can transmit to high in the clouds server, and then transmits to client terminal on, makes the user can acquire corresponding empty gas detection result conveniently.
Drawings
Fig. 1 is a schematic structural diagram of a frame of an air quality detection system according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of an air quality detection device according to a first embodiment of the present invention;
fig. 3 is an exploded view of the air quality detecting device according to the first embodiment of the present invention;
fig. 4 is a schematic block diagram of a main control MCU of the air quality detection apparatus according to the first embodiment of the present invention;
fig. 5 is a schematic structural diagram of an air quality detection apparatus according to a second embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, the following description will explain embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
The first embodiment is as follows:
as shown in fig. 1, the air quality detection system of this embodiment includes air quality detection device, high in the clouds server and user terminal, and air quality detection device and high in the clouds server wireless communication are connected, and air quality detection device uploads the testing result to high in the clouds server, and high in the clouds server saves and analyzes the testing result, for example, can carry out the analysis to the air quality change information of presetting the time quantum to carry out ambient air treatment better. The air quality detection device is provided with a negative oxygen ion sensor, and the negative oxygen ion sensor is used for detecting the concentration of negative oxygen ions in the air; the user terminal is connected with the cloud server in a wired or wireless communication mode, the user terminal can acquire a detection result of the air quality detection device through the cloud server, and the detection result comprises the concentration of negative oxygen ions. The air quality detection system of this embodiment is through the mode of cloud interconnection for air quality detection device's testing result can transmit to high in the clouds server, and then transmits to client terminal on, makes the user can acquire corresponding air detection result conveniently.
Specifically, as shown in fig. 2 and 3, the air quality detection device of the present embodiment includes a housing 1, a negative oxygen ion sensor 2 installed inside the housing 1, a comprehensive detection portion 3, a power supply 4, a main control MCU, a wireless module, a display screen 5 installed on the housing 1, and an indicator light, wherein the negative oxygen ion sensor 2 is used for detecting the concentration of negative oxygen ions in the air; the comprehensive detection part 3 is used for detecting other quality indexes in the air, and the comprehensive detection part 3 comprises one or more of air quality detection sensors such as a carbon dioxide sensor, a carbon monoxide sensor, a PM2.5 sensor, a temperature sensor, a humidity sensor, a formaldehyde sensor and a TVOC sensor; power 4 is used for supplying power to above-mentioned each components and parts, and master control MCU and all sensors, display screen 5, wireless module, pilot lamp communication connection, master control MCU are used for controlling the testing result of all sensors and show on the display screen, still are used for controlling the pilot lamp to show different colours with the quality of feedback current ambient air, for example: the indicator light displays red color, which represents that the current ambient air quality is poor; the indicating lamp displays yellow to indicate that the current ambient air quality is good; the indicating lamp displays green, which represents that the air quality of the current environment is excellent; the wireless module is used for being in communication connection with the cloud server or the user terminal, so that detection data of each sensor are sent to the cloud server, and are transmitted to the user handheld terminal from the cloud server or are directly transmitted to the user terminal of the user, and therefore the user can conduct remote monitoring. The wireless module can be a wireless communication module such as a WIFI module and a Bluetooth module.
Specifically, the housing 1 includes a barrel 11, a base 12 and a top cover 13, two ends of the barrel 11 are open, that is, the top and the bottom of the barrel 11 are open, the cross section of the barrel 11 is a square structure, and an arc transition is adopted at a corner of the square structure, so that the structure of the barrel 11 is smooth. The bottom opening of the barrel 11 is provided with a base 12, specifically, the top of the base 12 has an annular step 121, and the bottom opening of the barrel 11 is abutted on the annular step 121, so that the outer wall of the barrel 11 is flush with the outer wall of the base 12. The top opening of the cylinder 11 is provided with a top cover 13. Preferably, the base 12 may adopt a weighted structure design to improve the stability of the placement of the air quality detection device.
In negative oxygen ion sensor 2 slope was laid in shell 1, specifically, 3 horizontal installation of comprehensive testing portion on base 12, negative oxygen ion sensor 2's downside supported and is leaned on base 12, and negative oxygen ion sensor 2 supports and leans on the front side of comprehensive testing portion 3 for negative oxygen ion sensor 2 is in the tilt state, saves installation space, makes air quality detection device miniaturized, portable.
The shell 1 is provided with an air inlet a and an air outlet b corresponding to an air duct I of the negative oxygen ion sensor, and the air inlet a and the air outlet b are respectively positioned at two sides of the inclination direction of the negative oxygen ion sensor. Specifically, the top cover 13 is of an annular structure, the display screen 5 is arranged above the annular opening of the top cover 13, and the display screen 5 is preferably an LED display screen; the top cover 13 is hermetically connected with the display screen 5, and an air inlet a is formed only on the rear side of the joint of the top cover 13 and the display screen 5, namely the air inlet a is positioned on the rear side of the top of the shell 1 and consists of a plurality of through holes; correspondingly, the front side of the bottom of the cylinder 11 is provided with an air outlet b, and the air outlet b is composed of a plurality of through holes. The positions of the vacancy inlet a and the air outlet b are designed, so that an air duct formed between the air inlet a and the air outlet b is distributed along the inclined direction of the negative oxygen ion sensor 2, and the detection precision of the negative oxygen ion sensor 2 is improved.
The casing 1 is also internally provided with an air duct inlet and an air duct outlet corresponding to the air duct II of the comprehensive detection part 3, and the air duct inlet c and the air duct outlet are respectively positioned at two sides of the casing. Specifically, the air duct inlet c is positioned on the right side of the bottom of the cylinder 11, and the air duct inlet c is composed of a plurality of through holes; the air duct outlet is positioned on the left side of the bottom of the cylinder body 11 and consists of a plurality of through holes; the air duct II of the comprehensive detection part 3 is independent (namely, not superposed) with the air duct I of the negative oxygen ion sensor, and the air quality detection precision is improved. Wherein, the air outlet b, the air duct inlet c and the outlet are distributed along the circumferential direction of the cylinder 11 to form an annular structure, so that the whole structure is symmetrical and more attractive.
The indicator light of this embodiment is integrated in the structure of top cap, namely through the colour change of top cap, feeds back the good or bad of current ambient air quality.
In order to make the air quality detection device portable, the housing of this embodiment has a lifting portion, the lifting portion is a lifting groove, that is, the middle upper portions of the left and right sides of the cylinder 11 respectively have a mounting opening for the lifting groove, the lifting groove 6 is mounted in the mounting opening, and a user only needs to hold the lifting groove 6 by hand to carry the air quality detection device, which is very convenient. Preferably, one side of the cylinder body is provided with a lifting groove; in addition, the shell is also provided with a power supply connector 7, the power supply connector 7 is electrically connected with the power supply 4, so that the power supply 4 can be charged conveniently, and the power supply 4 can supply sufficient electric quantity; and the casing is also provided with a switch 8 of the wireless module, a detection switch 9 and a device switch 10 so as to control the wireless module to be turned on or off, detect the turning on or off and turn on or off the device.
Specifically, as shown in fig. 4, the main control MCU of this embodiment includes a receiving module, a calculating module, a comparing module and a signal control module, where the receiving module is configured to receive detection results of each sensor; the calculation module is used for matching the concentration of the pollutants detected by each sensor and the concentration of the negative oxygen ions with an air quality index calculation formula to obtain a current air quality index; the comparison module is used for comparing the current air quality index with a preset threshold range; if the current air quality index is lower than the minimum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a first color, for example: green, representing the current air quality is excellent; if the current air quality index is within the preset threshold range, the signal control module is used for controlling the indicator lamp to display a second color, for example: yellow, representing current good air quality; if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a third color, for example: red, representing the current poor air quality. Wherein, the air quality index calculation formula is as follows:
wherein AQI is air quality index, α is preset proportionality coefficient, c is concentration of negative oxygen ion in current environment, c is air quality index0Is a preset negative oxygen ion concentration limit value,
it is required to satisfy the condition that the concentration of the negative oxygen ions in the air is increased along with the increase of the concentration of the negative oxygen ions in the air, i is the serial number of the pollutant,
λiis the contamination index, k, of the i-th contaminantiIs the weight coefficient of the i-th contaminant, ciIs the concentration of the i-th contaminant, siIs the limit value of the concentration of the i-th pollutant and n is the number of the types of pollutants. In addition, the main control MCU of this embodiment may further include a setting module, which sets upThe module is connected with the calculation module, and the setting module is used for setting α and c0、si。
The air quality detection device in the air quality detection system of the embodiment forms the air channel for detecting the negative oxygen ions by utilizing the structure of the shell, omits an air pipe exposed outside the shell and is convenient to carry; and the air inlet and the air outlet on the shell are respectively positioned on two sides of the negative oxygen ion sensor in the inclination direction, so that the detection precision of the concentration of the negative oxygen ions is improved. In addition, the air quality detection device of the embodiment comprehensively considers the optimization of negative oxygen ions in the air on the air quality, so that the feedback of the air quality index is more accurate.
The alarm method of the air quality detection system comprises the following steps:
s1, acquiring the concentration of pollutants and the concentration of negative oxygen ions; specifically, the negative oxygen ion sensor, the carbon dioxide sensor, the carbon monoxide sensor, the PM2.5 sensor, the formaldehyde sensor, and the TVOC sensor in the air quality detection apparatus of the present embodiment respectively obtain the concentration of the negative oxygen ions and the concentration of the pollutants corresponding to each of the negative oxygen ion sensor, the carbon dioxide sensor, the carbon monoxide sensor, the PM2.5 sensor, the formaldehyde sensor, and the TVOC sensor;
s2, matching the concentration of the pollutants and the concentration of the negative oxygen ions with an air quality index calculation formula to obtain a current air quality index; specifically, the calculation module of the main control MCU matches the air quality index calculation formula with the concentration of the pollutant and the concentration of the negative oxygen ions detected by each sensor to obtain a current air quality index AQI:
wherein α is a preset proportionality coefficient, c is the concentration of negative oxygen ions in the current environment0Is a preset negative oxygen ion concentration limit value,
it is required to satisfy the condition that the concentration of the negative oxygen ions in the air is increased along with the increase of the concentration of the negative oxygen ions in the air, i is the serial number of the pollutant,
λiis the contamination index, k, of the i-th contaminantiIs the weight coefficient of the i-th contaminant, ciIs the concentration of the i-th contaminant, siIs the limit value of the concentration of the i-th pollutant and n is the number of the types of pollutants.
S3, comparing the current Air Quality Index (AQI) with a preset threshold range, and if the current air quality index is lower than the minimum value of the preset threshold range, controlling an indicator lamp to display a first color by a signal control module; if the current air quality index is within the preset threshold range, the signal control module is used for controlling the indicator lamp to display a second color; and if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a third color. Specifically, the comparison module of the main control MCU compares the current air quality index AQI with a preset threshold range, and if the current air quality index is lower than the minimum value of the preset threshold range, the signal control module is configured to control the indicator light to display a first color, for example: green, representing the current air quality is excellent; if the current air quality index is within the preset threshold range, the signal control module is used for controlling the indicator lamp to display a second color, for example: yellow, representing current good air quality; if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a third color, for example: red, representing the current poor air quality.
In addition, the air quality detection device of this embodiment can also send current air quality index to the high in the clouds server through wireless module in order to carry out statistical analysis to the air quality in a period, can also send current air quality index to user terminal through wireless module to the user can learn current air quality index long-rangely.
The alarm method of the air quality detection system of the embodiment is simple and visual, and the quality of the current air quality is fed back through different colors displayed by the indicator lamp. And moreover, the optimization of negative oxygen ions in the air on the air quality is comprehensively considered, so that the feedback of the air quality is more accurate.
Example two:
the air quality detection system of the present embodiment is different from the first embodiment in that: the air quality detection device has different structures.
Specifically, as shown in fig. 5, the lifting portion of the housing of the present embodiment is a lifting handle 100, specifically, the middle upper portions of the left and right sides of the cylinder respectively have a rotating shaft, two ends of the arched lifting handle are respectively rotatably connected to the rotating shafts of the two sides of the cylinder, and a user can carry the air quality detection device by only lifting the lifting handle with his hand, which is very convenient. The structure diversification of the air quality detection device is realized.
Other structures can refer to the first embodiment.
Example three:
the air quality detection system of the present embodiment is different from the first embodiment in that: the air quality detection device has different structures.
Specifically, the air quality detection device of the present embodiment can omit the structure of the comprehensive detection unit, and is only used for detecting the concentration of negative oxygen ions in the air, thereby simplifying the structure of the air quality detection device to meet different requirements of users. In addition, one or more of various sensors included in the integrated detection unit may be omitted to meet different needs of the user.
Other structures can refer to the first embodiment.
Example four:
the air quality detection system of the present embodiment is different from the first embodiment in that: the air quality detection device has different structures.
Specifically, the air quality detection device of the present embodiment may omit one or more of a WIFI module, a display screen, and an indicator light; when the display screen is omitted, the top cover is not an annular structure but a plate-shaped structure, and the air inlet can be arranged at the top of the cylinder body, can also be arranged at the junction of the top of the cylinder body and the top cover, and can also be arranged on the top cover. The structure of the air quality detection device is simplified, and cost reduction is facilitated, so that different requirements of users are met.
Other structures can refer to the first embodiment.
Example five:
the air quality detection system of the present embodiment is different from the first embodiment in that: the air quality detection device has different structures.
The pilot lamp of the air quality detection device of this embodiment can with not integrated with the top cap, can be equipped with the optional position at the casing outward, realize air quality detection device's structure diversification to satisfy user's different demands.
Other structures can refer to the first embodiment.
Example six:
the air quality detection system of the present embodiment is different from the first embodiment in that: the air quality detection device has different structures.
Specifically, negative oxygen ion sensor and comprehensive detection portion all keep flat the bottom in the shell, and air duct one is the same wind channel with air duct two, follows the ventilation hole that the bottom circumference of shell was laid promptly, and oxygen ion sensor and comprehensive detection portion share same wind channel structure promptly, the machine-shaping of the air quality detection device of being convenient for.
Other structures can refer to the first embodiment.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing has been a detailed description of the preferred embodiments and principles of the present invention, and it will be apparent to those skilled in the art that variations may be made in the specific embodiments based on the concepts of the present invention, and such variations are considered as within the scope of the present invention.
Claims (8)
1. The air quality detection system is characterized by comprising an air quality detection device, a cloud server and a user terminal, wherein the air quality detection device is in wireless communication connection with the cloud server and is provided with a negative oxygen ion sensor; the user terminal is in communication connection with the cloud server to obtain a detection result of the air quality detection device, wherein the detection result comprises the concentration of negative oxygen ions;
the air quality detection device comprises a shell, the negative oxygen ion sensor is arranged in the shell, and the shell is provided with an inlet and an outlet corresponding to an air duct I of the negative oxygen ion sensor;
the negative oxygen ion sensor is obliquely arranged in the shell, and the inlet and the outlet of the first air duct are respectively positioned on two sides of the inclination direction of the negative oxygen ion sensor.
2. The air quality detection system of claim 1, wherein the air quality detection device further comprises a comprehensive detection part arranged in the housing, and the housing is provided with an inlet and an outlet of the air duct II corresponding to the comprehensive detection part; the first air duct and the second air duct are the same air duct or are not overlapped.
3. The air quality detection system of claim 2, wherein the integrated detection unit comprises one or more of a carbon dioxide sensor, a carbon monoxide sensor, a PM2.5 sensor, a temperature sensor, a humidity sensor, a formaldehyde sensor, and a TVOC sensor.
4. The air quality detection system of claim 1, wherein the housing comprises a cylinder with openings at two ends, a base is arranged at the bottom opening of the cylinder, and a top cover is arranged at the top opening of the cylinder; the top of the base is provided with an annular step, and the bottom opening of the barrel is abutted against the annular step.
5. The air quality detection system according to any one of claims 1 to 4, wherein a master control MCU is further arranged in the housing, and the master control MCU is in communication connection with all the sensors; and the shell is provided with a display screen in communication connection with the master control MCU, and the display screen is used for displaying the detection results of the sensors.
6. The air quality detection system of claim 5, wherein the air quality detection device further comprises a wireless module, the wireless module is in communication connection with the main control MCU, and the wireless module is used for being in wireless communication connection with a cloud server and/or a user terminal.
7. The air quality detection system of claim 5, wherein an indicator light is arranged on the housing, the indicator light is in communication connection with the main control MCU, and the indicator light is used for indicating the air quality of the current environment.
8. The air quality detection system according to claim 7, wherein the main control MCU comprises a receiving module, a calculating module, a comparing module and a signal control module, wherein the receiving module is used for receiving detection results of each sensor; the calculation module is used for matching the concentration of the pollutants detected by each sensor and the concentration of the negative oxygen ions with an air quality index calculation formula to obtain a current air quality index; the comparison module is used for comparing the current air quality index with a preset threshold range; if the current air quality index is lower than the minimum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a first color; if the current air quality index is within the preset threshold range, the signal control module is used for controlling the indicator lamp to display a second color; and if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is used for controlling the indicator lamp to display a third color.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109725113A (en) * | 2019-01-23 | 2019-05-07 | 杭州拓客汽车配件有限公司 | A kind of air quality detection system and alarm method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109725113A (en) * | 2019-01-23 | 2019-05-07 | 杭州拓客汽车配件有限公司 | A kind of air quality detection system and alarm method |
| CN109725113B (en) * | 2019-01-23 | 2024-03-29 | 杭州拓客汽车配件有限公司 | Air quality detection system and alarm method |
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