CN109725113B - Air quality detection system and alarm method - Google Patents
Air quality detection system and alarm method Download PDFInfo
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- CN109725113B CN109725113B CN201910065614.0A CN201910065614A CN109725113B CN 109725113 B CN109725113 B CN 109725113B CN 201910065614 A CN201910065614 A CN 201910065614A CN 109725113 B CN109725113 B CN 109725113B
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Abstract
The invention belongs to the technical field of air quality detection, and particularly relates to an air quality detection system and an alarm method; the 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, and the detection result comprises negative oxygen ion concentration. According to the air quality detection system, the detection result of the air quality detection device can be transmitted to the cloud server in a cloud interconnection mode and then transmitted to the client terminal, so that a user can conveniently obtain the corresponding air detection result.
Description
Technical Field
The invention belongs to the technical field of air quality detection, and particularly relates to an air quality detection system and an alarm method.
Background
In recent years, environmental problems have become a focus of society. Air quality is a major concern for the public every day. Toxic gases such as PM2.5/PM10 particles generated by atmospheric pollution and formaldehyde generated by factory building decoration can cause harm to human body health. Therefore, the air quality is monitored to be a powerful means for controlling air pollution and improving air environment.
There are many studies in the prior art about air quality detecting apparatuses, for example, patent document publication No. CN206696255U discloses an air quality detector which is convenient to carry, and patent document publication No. CN203705425U discloses a portable air quality detecting apparatus. 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 rarely involve detecting negative oxygen ions in the air.
As is well known, negative oxygen ions are free electrons formed by separating electrons on molecules from the molecules in the air under the action of excitation energy, and the air negative ions have health care effects on human bodies, and are mainly expressed in regulating functions of nervous systems and cerebral cortex, enhancing metabolism, promoting blood circulation, improving functions of organs such as heart, lung, brain and the like. In ecological environment evaluation, the concentration of negative oxygen ions in air is listed as an important index for measuring the air quality, but the negative oxygen ions in air are colorless, odorless and invisible and can be detected only by means of corresponding equipment. For example, patent document publication No. CN207488221U discloses a nondestructive air negative oxygen ion detector, which comprises a housing, wherein an air pipe, an induction electrode, a battery and a circuit board are arranged inside the housing; the air pipe is semi-embedded in the shell, the induction electrode is positioned 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 of a single machine design, and users cannot conveniently acquire corresponding air quality detection data.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an air quality detection system and an alarm method.
In order to achieve the aim of the invention, the invention adopts the following technical scheme:
the 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, and the detection result comprises negative oxygen ion concentration. According to the air quality detection system, the detection result of the air quality detection device can be transmitted to the cloud server in a cloud interconnection mode and then transmitted to the client terminal, so that a user can conveniently obtain the corresponding air detection result.
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 the first air duct of the negative oxygen ion sensor.
As a preferable scheme, the air quality detection device further comprises a comprehensive detection part arranged in a shell, wherein the shell is provided with an inlet and an outlet of an air duct II corresponding to the comprehensive detection part; the first air channel and the second air channel are the same air channel or are not overlapped.
Preferably, the integrated detection part 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.
As a preferable scheme, the shell comprises a cylinder body with two open 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 cylinder body is propped against the annular step.
As a preferable scheme, a main control MCU is also arranged in the shell, and the main control MCU is in communication connection with all the sensors; the shell is provided with a display screen in communication connection with the main control MCU, and the display screen is used for displaying the detection result of each sensor.
As an optimal scheme, the air quality detection device further comprises a wireless module, wherein 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 preferable scheme, the shell is provided with an indicator lamp which is in communication connection with the main 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 all the sensors; the calculation module is used for obtaining the current air quality index by matching the concentration of the pollutants detected by each sensor with an air quality index calculation formula; 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 in 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 formula is:
wherein AQI is air quality index, alpha is preset proportionality coefficient, c is concentration of negative oxygen ions in current environment, c 0 Is a preset negative oxygen ion concentration standard value,it is required to satisfy less than 1, i is the contaminant number, ">λ i Pollution index, k, for the ith pollutant i Weight coefficient for the ith contaminant, c i Is the concentration of the ith pollutant, s i Is the standard value of the concentration of the ith pollutant, and n is the species number of the pollutant.
The invention also provides an alarm method of the air quality detection system, which comprises the following steps:
s1, acquiring the concentration of pollutants and the concentration of negative oxygen ions;
s2, matching the concentration of pollutants and the concentration of negative oxygen ions with an air quality index calculation formula to obtain a current air quality index;
s3, comparing the current air quality index with a preset threshold range, and if the current air quality index is lower than the minimum value of the preset threshold range, controlling the indicator lamp to display a first color by the signal control module; if the current air quality index is in 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.
Compared with the prior art, the invention has the beneficial effects that:
according to the air quality detection system, the detection result of the air quality detection device can be transmitted to the cloud server in a cloud interconnection mode and then transmitted to the client terminal, so that a user can conveniently obtain the corresponding air detection result.
The alarm method is convenient for users to know the quality of the current air quality.
Drawings
FIG. 1 is a schematic diagram of a frame structure of an air quality detection system according to a first embodiment of the present invention;
fig. 2 is a schematic structural view of an air quality detecting apparatus according to a first embodiment of the present invention;
FIG. 3 is an exploded view of the structure of an air quality inspection device according to the first embodiment of the present invention;
fig. 4 is a schematic block diagram of a master MCU of an air quality detection apparatus according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of an air quality detecting apparatus according to a second embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
Embodiment one:
as shown in fig. 1, the air quality detection system of the embodiment includes an air quality detection device, a cloud server and a user terminal, the air quality detection device is connected with the cloud server in a wireless communication manner, the air quality detection device uploads a detection result to the cloud server, and the cloud server stores and analyzes the detection result, for example, can analyze air quality change information in a preset time period, so as to better treat ambient air. 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, and can acquire a detection result of the air quality detection device through the cloud server, wherein the detection result comprises the concentration of negative oxygen ions. According to the air quality detection system, through the cloud interconnection mode, the detection result of the air quality detection device can be transmitted to the cloud server and then to the client terminal, so that a user can conveniently obtain the corresponding air detection result.
Specifically, as shown in fig. 2 and 3, the air quality detection device of the embodiment includes a housing 1, a negative oxygen ion sensor 2 installed inside the housing 1, a comprehensive detection part 3, a power supply 4, a main control MCU, a wireless module, and a display screen 5 and an indicator light installed on the housing 1, wherein the negative oxygen ion sensor 2 is used for detecting the concentration of negative oxygen ions in 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, a TVOC sensor and the like; the power supply 4 is used for supplying power to the above components, and the main control MCU is in communication connection with all the sensors, the display screen 5, the wireless module and the indicator lamps, and is used for controlling the detection results of all the sensors to be displayed on the display screen and also used for controlling the indicator lamps to display different colors so as to feed back the quality of the current ambient air, for example: the indicator light displays red, which indicates that the current ambient air quality is poor; the indicator light displays yellow, which indicates that the current ambient air quality is good; the indicator light is green, and the current environmental air quality is good; the wireless module is used for being in communication connection with the cloud server or the user terminal so as to send detection data of each sensor to the cloud server, and the detection data are transmitted to the user handheld terminal from the cloud server or directly transmitted to the user terminal of the user, so that the user can remotely monitor the detection data. The wireless module can be a wireless communication module such as a WIFI module and a Bluetooth module.
Specifically, the shell 1 comprises a cylinder 11, a base 12 and a top cover 13, two ends of the cylinder 11 are opened, namely, the top and the bottom of the cylinder 11 are opened, the cross section of the cylinder 11 is of a square structure, and the corners of the square structure adopt arc transition, so that the structure of the cylinder 11 is smooth. The bottom opening of the cylinder 11 is provided with a base 12, in particular the top of the base 12 has an annular step 121, the bottom opening of the cylinder 11 resting on the annular step 121 so that the outer wall of the cylinder 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 be of a weighted design to improve the stability of the air quality detection device placement.
The negative oxygen ion sensor 2 is obliquely arranged in the shell 1, specifically, the comprehensive detection part 3 is horizontally arranged on the base 12, the lower side of the negative oxygen ion sensor 2 is propped against the base 12, and the negative oxygen ion sensor 2 is propped against the front side of the comprehensive detection part 3, so that the negative oxygen ion sensor 2 is in an inclined state, the installation space is saved, and the air quality detection device is miniaturized and is convenient to carry.
The housing 1 has an air inlet a and an air outlet b corresponding to the air channel one of the negative oxygen ion sensor, and the air inlet a and the air outlet b are respectively positioned at both sides of the oblique direction of the negative oxygen ion sensor. Specifically, the top cover 13 is of an annular structure, a display screen 5 is arranged above an annular opening of the top cover 13, and the display screen 5 is preferably an LED display screen; the top cover 13 is in sealing connection with the display screen 5, and an air inlet a is formed only at the rear side of the connection part of the top cover 13 and the display screen 5, namely, the air inlet a is positioned at 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 consists of a plurality of through holes. The positions of the vacancy inlet a and the air outlet b are designed, so that air channels formed between the air inlet a and the air outlet b are 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 housing 1 is also provided with an air channel inlet and an air channel outlet corresponding to the air channel II of the comprehensive detection part 3, and the air channel inlet c and the air channel outlet are respectively positioned on two sides of the housing. Specifically, the air channel inlet c is positioned on the right side of the bottom of the cylinder 11, and consists of a plurality of through holes; the air duct outlet is positioned at the left side of the bottom of the cylinder 11 and consists of a plurality of through holes; the second air passage of the comprehensive detection part 3 and the first air passage of the negative oxygen ion sensor are independent (i.e. are not overlapped) to be beneficial to improving the accuracy of air quality detection. The air outlet b, the air channel inlet c and the air outlet are distributed along the circumferential direction of the cylinder 11 to form an annular structure, so that the whole structure is symmetrical and attractive.
The pilot lamp of this embodiment is integrated in the structure of top cap, promptly through the colour change of top cap, feedback current environmental air quality's quality.
In order to make the air quality detection device portable, the shell of this embodiment has the portion of carrying, carries the portion of carrying and draws for carrying and draw the recess, and the well upper portion of the left and right both sides of barrel 11 has the erection site that carries and draws the recess respectively, installs in the erection site and carries and draw recess 6, and the user only needs to hold and draws recess 6, can carry the air quality detection device, and is very convenient. Preferably, a lifting groove is arranged on one side of the cylinder body; in addition, a power connector 7 is further arranged on the shell, and the power connector 7 is electrically connected with the power supply 4, so that the power supply 4 can be conveniently charged, and the power supply 4 can have sufficient electric quantity to supply; and the shell is also provided with a switch 8, a detection switch 9 and a device switch 10 of the wireless module so as to control the wireless module to be turned on or off, and detect the on or off of the wireless module and the on or off of the device.
Specifically, as shown in fig. 4, the main control MCU of the present embodiment includes a receiving module, a calculating module, a comparing module, and a signal control module, where the receiving module is configured to receive a detection result 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 light to display a first color, for example: green, representing that the current air quality is good; if the current air quality index is within the preset threshold range, the signal control module is configured to control the indicator light to display a second color, for example: yellow, representing good current air quality; if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is configured to control the indicator light to display a third color, for example: red, representing the current poor air quality. Wherein, the air quality index formula is:
wherein AQI is air quality index, alpha is preset proportionality coefficient, c is concentration of negative oxygen ions in current environment, c 0 Is a preset negative oxygen ion concentration standard value,the requirement is less than 1, and the concentration of negative oxygen ions in the air increases along with the increase of the concentration of negative oxygen ions in the air, i is a pollutant serial number,/>λ i Pollution index, k, for the ith pollutant i Weight coefficient for the ith contaminant, c i Is the concentration of the ith pollutant, s i Is the standard value of the concentration of the ith pollutant, and n is the species number of the pollutant. In addition, the main control MCU of the embodiment may further include a setting module connected with the computing moduleThe setting module is used for setting alpha, c 0 、s i 。
The air quality detection device in the air quality detection system of the embodiment utilizes the structure of the shell to form an air duct for detecting negative oxygen ions, omits an air duct exposed outside the shell, and is convenient to carry; and the air inlet and the air outlet on the shell are respectively positioned at two sides of the inclination direction of the negative oxygen ion sensor, so that the detection precision of the concentration of the negative oxygen ions is improved. In addition, the air quality detection device 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.
Corresponding to the air quality detection system of the present embodiment, the present embodiment further provides an alarm method of the air quality detection system, including the steps of:
s1, acquiring the concentration of pollutants and the concentration of negative oxygen ions; specifically, in the air quality detection device of this embodiment, the negative oxygen ion sensor, the carbon dioxide sensor, the carbon monoxide sensor, the PM2.5 sensor, the formaldehyde sensor, and the TVOC sensor respectively obtain the concentration of the negative oxygen ion and the concentration of the respective corresponding pollutants;
s2, matching the concentration of pollutants and the concentration of negative oxygen ions with an air quality index calculation formula to obtain a current air quality index; specifically, a calculation module of the main control MCU obtains a current air quality index AQI by matching an air quality index calculation formula of the concentration of pollutants detected by each sensor and the concentration of negative oxygen ions:
wherein alpha is a preset proportionality coefficient, c is the concentration of negative oxygen ions in the current environment, c 0 Is a preset negative oxygen ion concentration standard value,is required to be less than 1, and increases with the increase of the concentration of negative oxygen ions in the air, i is the pollutant sequenceNumber (1)/(2)>λ i Pollution index, k, for the ith pollutant i Weight coefficient for the ith contaminant, c i Is the concentration of the ith pollutant, s i Is the standard value of the concentration of the ith pollutant, and n is the species number of the pollutant.
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 the indicator lamp to display a first color by the signal control module; if the current air quality index is in 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 a 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 that the current air quality is good; if the current air quality index is within the preset threshold range, the signal control module is configured to control the indicator light to display a second color, for example: yellow, representing good current air quality; if the current air quality index is higher than the maximum value of the preset threshold range, the signal control module is configured to control the indicator light to display a third color, for example: red, representing the current poor air quality.
In addition, the air quality detection device of the embodiment can also send the current air quality index to the cloud server through the wireless module to carry out statistical analysis on the air quality in a period of time, and can also send the current air quality index to the user terminal through the wireless module, so that the user can know the current air quality index remotely.
The alarm method of the air quality detection system of the embodiment feeds back the quality of the current air quality through different colors displayed by the indicator lights, and is simple and visual. And the optimization of negative oxygen ions in the air to the air quality is comprehensively considered, so that the feedback of the air quality is more accurate.
Embodiment two:
the air quality detection system of the present embodiment is different from that of the first embodiment in that: the air quality detection device has different structures.
Specifically, as shown in fig. 5, the lifting part of the housing in this embodiment is a lifting handle 100, specifically, the middle upper parts of the left and right sides of the cylinder are respectively provided with a rotating shaft, two ends of the arched lifting handle are respectively connected to the rotating shafts on the two sides of the cylinder in a rotating manner, and a user can carry the air quality detecting device only by carrying the lifting handle with his hands, which is very convenient. The structure of the air quality detection device is diversified.
Other structures may be referred to in embodiment one.
The alarm method of the air quality detection system of the present embodiment refers to embodiment one.
Embodiment III:
the air quality detection system of the present embodiment is different from that of the first embodiment in that: the air quality detection device has different structures.
Specifically, the air quality detection device of the embodiment can omit the structure of the comprehensive detection part, is only used for detecting the concentration of negative oxygen ions in the air, and simplifies the structure of the air quality detection device so as to meet different requirements of users. In addition, one or more of various sensors included in the integrated detection part may be omitted to meet different demands of users.
Other structures may be referred to in embodiment one.
The alarm method of the air quality detection system of the present embodiment refers to embodiment one.
Embodiment four:
the air quality detection system of the present embodiment is different from that of the first embodiment in that: the air quality detection device has different structures.
Specifically, the air quality detection device of the embodiment may omit one or more of a WIFI module, a display screen, and an indicator light; when omitting the display screen, the top cap is not annular structure, but platelike structure, and the air inlet can set up at the top of barrel, also can set up in the juncture of the top of barrel and top cap, still can set up on the top cap. The embodiment simplifies the structure of the air quality detection device, is beneficial to the reduction of cost and meets different requirements of users.
Other structures may be referred to in embodiment one.
The alarm method of the air quality detection system of the present embodiment refers to embodiment one.
Fifth embodiment:
the air quality detection system of the present embodiment is different from that of the first embodiment in that: the air quality detection device has different structures.
The pilot lamp of air quality detection device of this embodiment can with not with the top cap integration, can be peripheral hardware in the optional position of casing, realize air quality detection device's structure diversification to satisfy user's different demands.
Other structures may be referred to in embodiment one.
The alarm method of the air quality detection system of the present embodiment refers to embodiment one.
Example six:
the air quality detection system of the present embodiment is different from that of the first embodiment in that: the air quality detection device has different structures.
Specifically, the negative oxygen ion sensor and the comprehensive detection part are both horizontally arranged at the bottom in the shell, the first air channel and the second air channel are the same air channel, namely the vent holes distributed along the circumferential direction of the bottom of the shell, namely the oxygen ion sensor and the comprehensive detection part share the same air channel structure, so that the air quality detection device is convenient to process and shape.
Other structures may be referred to in embodiment one.
The alarm method of the air quality detection system of the present embodiment refers to embodiment one.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is only illustrative of the preferred embodiments and principles of the present invention, and changes in specific embodiments will occur to those skilled in the art upon consideration of the teachings provided herein, and such changes are intended to be included within the scope of the invention as defined by the claims.
Claims (7)
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 also comprises a comprehensive detection part arranged in the shell, wherein the comprehensive detection part 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;
a main control MCU is also arranged in the shell and is in communication connection with all the sensors; the shell is provided with a display screen which is in communication connection with the main control MCU, and the display screen is used for displaying the detection result of each sensor;
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 all the sensors; the calculation module is used for obtaining the current air quality index by matching the concentration of the pollutants detected by each sensor with an air quality index calculation formula; 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 in 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 formula is:
wherein AQI is air quality index, alpha is preset proportionality coefficient, c is concentration of negative oxygen ions in current environment, c 0 Is a preset negative oxygen ion concentration standard value,it is required to satisfy less than 1, i is the contaminant number, ">λ i Pollution index, k, for the ith pollutant i Weight coefficient for the ith contaminant, c i Is the concentration of the ith pollutant, s i Is the standard value of the concentration of the ith pollutant, and n is the species number of the pollutant.
2. An air quality testing system according to claim 1 wherein the air quality testing device comprises a housing, the negative oxygen ion sensor being disposed within the housing, the housing having an inlet and an outlet corresponding to the negative oxygen ion sensor air duct one.
3. An air quality inspection system according to claim 2 wherein the housing has an inlet and an outlet corresponding to an air duct two of the integrated inspection section; the first air channel and the second air channel are the same air channel or are not overlapped.
4. An air quality inspection system according to claim 2 wherein the housing comprises a barrel with two open ends, a base being provided at the bottom opening of the barrel, and a top cover being provided at the top opening of the barrel; the top of the base is provided with an annular step, and the bottom opening of the cylinder body is propped against the annular step.
5. The air quality detection system according to claim 4, 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 in wireless communication connection with the cloud server and/or the user terminal.
6. The air quality detection system according to claim 5, wherein the housing is provided with an indicator light, 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.
7. An alarm method of an air quality detection system according to claim 6, comprising the steps of:
s1, acquiring the concentration of pollutants and the concentration of negative oxygen ions;
s2, matching the concentration of pollutants and the concentration of negative oxygen ions with an air quality index calculation formula to obtain a current air quality index;
s3, comparing the current air quality index with a preset threshold range, and if the current air quality index is lower than the minimum value of the preset threshold range, controlling the indicator lamp to display a first color by the signal control module; if the current air quality index is in 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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