CN109725113A - A kind of air quality detection system and alarm method - Google Patents
A kind of air quality detection system and alarm method Download PDFInfo
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- CN109725113A CN109725113A CN201910065614.0A CN201910065614A CN109725113A CN 109725113 A CN109725113 A CN 109725113A CN 201910065614 A CN201910065614 A CN 201910065614A CN 109725113 A CN109725113 A CN 109725113A
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- 238000001514 detection method Methods 0.000 title claims abstract description 78
- 238000000034 method Methods 0.000 title claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 58
- 239000001301 oxygen Substances 0.000 claims abstract description 58
- 238000012360 testing method Methods 0.000 claims abstract description 18
- 238000004891 communication Methods 0.000 claims abstract description 9
- -1 oxygen Ion Chemical class 0.000 claims description 54
- 239000003344 environmental pollutant Substances 0.000 claims description 33
- 231100000719 pollutant Toxicity 0.000 claims description 33
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims description 15
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000004364 calculation method Methods 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000003570 air Substances 0.000 description 187
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
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Abstract
The invention belongs to Detection of Air Quality technical fields, and in particular to a kind of air quality detection system and alarm method；Wherein, air quality detection system, including air quality detecting device, cloud server and user terminal, the air quality detecting device and cloud server wireless communication connect, and the air quality detecting device has negative oxygen ion sensor；The user terminal and cloud server are communicated to connect to obtain the testing result of air quality detecting device, and the testing result includes negative oxygen ion concentration.Air quality detection system of the invention allows the testing result of air quality detecting device to be transmitted to cloud server, and then be transmitted on client terminal, allows users to easily obtain corresponding air detection result in such a way that cloud interconnects.
Description
Technical field
The invention belongs to Detection of Air Quality technical fields, and in particular to a kind of air quality detection system and alarm side
Method.
Background technique
In recent years, environmental problem became the hot topic of society.For masses, what air quality was even more paid close attention to daily
Emphasis.The toxic gases such as formaldehyde caused by PM2.5/PM10 particulate matter caused by atmosphere pollution and workshop building finishing all can
It causes damages to the health of the mankind.Therefore be monitored to air quality is to administer air pollution, improve air environment
Powerful measure.
There is the research much about Detection of Air Quality equipment in the prior art, for example, Publication No. CN206696255U
Patent document to disclose a kind of portable air quality detector, the patent document of Publication No. CN203705425U public
A kind of portable air quality detection apparatus is opened.However, existing Detection of Air Quality equipment is mostly focused on detection air
In one or more of air quality parameters such as concentration of formaldehyde, temperature, humidity, PM2.5, be seldom related to oxygen negative in air
The detection of ion.
Electron detachment its point it is well known that negative oxygen ion is molecule in air under the action of exciting energy, on molecule
Sub and formation free electron, negative aeroion is with health role to human body, is mainly manifested in and adjusts nervous system and brain
Function of cortex reinforces metabolism, promotes blood circulation, and improves functions of organs such as the heart, lung, brain etc..In Ecology Environment Evaluation
In, air negative oxgyen ion concentration is listed in the important indicator for measuring air quality, but negative oxygen ion colorless and odorless in air,
It is invisible to can not touch, it can only be detected by corresponding equipment.For example, the patent document of Publication No. CN207488221U is public
A kind of lossless air negative oxgyen ion detector, including shell are opened, shell is internally provided with air hose, induction electrode, battery, electricity
Road plate；Air hose half built-in is installed on enclosure interior, and induction electrode is located at air hose center and constitutes coaxial capacitance, air hose with air hose
It is electrically connected with battery, and battery is connect by power supply line with circuit board.But existing air negative oxgyen ion detector is
Single machine design, user can not easily obtain corresponding Detection of Air Quality data.
Summary of the invention
Aiming at the above shortcomings existing in the prior art, the present invention provides a kind of air quality detection system and alarm side
Method.
In order to achieve the above object of the invention, the invention adopts the following technical scheme:
A kind of air quality detection system, including air quality detecting device, cloud server and user terminal, the sky
Makings amount detecting device and cloud server wireless communication connect, and the air quality detecting device is sensed with negative oxygen ion
Device；The user terminal and cloud server are communicated to connect to obtain the testing result of air quality detecting device, the detection
It as a result include negative oxygen ion concentration.Air quality detection system of the invention is in such a way that cloud interconnects, so that air quality is examined
The testing result for surveying device can be transmitted to cloud server, and then be transmitted on client terminal, allow users to easily
Obtain corresponding air detection result.
Preferably, the air quality detecting device includes shell, and the negative oxygen ion sensor is set to shell
Interior, the shell has the entrance and exit of the air channel one corresponding to negative oxygen ion sensor.
Preferably, the air quality detecting device further includes the comprehensive detection portion in shell, described outer
Shell has the entrance and exit of the air channel two corresponding to comprehensive detection portion；The air channel one and air channel two are same
One air duct is not overlapped.
Preferably, the comprehensive detection portion includes carbon dioxide sensor, carbon monoxide transducer, PM2.5 biography
One of sensor, temperature sensor, humidity sensor, formaldehyde sensor, TVOC sensor are a variety of.
Preferably, the shell includes the cylinder of both ends open, and the bottom opening of cylinder is equipped with pedestal, cylinder
Top opening is equipped with top cover；The top of the pedestal has ring-shaped step, and the bottom opening of the cylinder is resisted against ring-shaped step
On.
Preferably, main control MCU is additionally provided in the shell, main control MCU and all sensors communicate to connect；Institute
It states shell and is equipped with the display screen communicated to connect with main control MCU, the display screen is used to show the testing result of each sensor.
Preferably, the air quality detecting device further includes wireless module, and wireless module is communicated with main control MCU
Connection, wireless module are used to connect with cloud server and/or user terminal wireless communication.
Preferably, the shell is equipped with indicator light, and the indicator light and main control MCU communicate to connect, the finger
Show that lamp is used to indicate the air quality of current environment.
Preferably, the main control MCU includes receiving module, computing module, comparison module and signal control module,
The receiving module is used to receive the testing result of each sensor；The computing module is used for the dirt detected to each sensor
The concentration matching air quality index calculation formula of the concentration and negative oxygen ion that contaminate object obtains current air quality index；Institute
Comparison module is stated for current air quality index to be compared with a preset threshold range；If current air quality refers to
When number is lower than the minimum value of preset threshold range, the signal control module shows the first color for control instructions lamp；If working as
Preceding air quality index is in preset threshold range, and the signal control module shows the second face for control instructions lamp
Color；If current air quality index is higher than the maximum value of preset threshold range, the signal control module refers to for controlling
Show that lamp shows third color；
Wherein, the air quality index calculation formula are as follows:
Wherein, AQI is air quality index, and α is preset proportionality coefficient, and c is the concentration of the negative oxygen ion of current environment,
c0For preset negative oxygen ion concentration mark limit value,Need to meet less than 1, i is pollutant serial number,
λiFor the pollution index of i-th kind of pollutant, kiFor the weight coefficient of i-th kind of pollutant, ciFor the concentration of i-th kind of pollutant, siFor
The mark limit value of the concentration of i-th kind of pollutant, n are the number of species of pollutant.
The present invention also provides the alarm methods of air quality detection system, comprising the following steps:
The concentration of S1, the concentration for obtaining pollutant and negative oxygen ion；
S2, by the concentration of pollutant and the concentration of negative oxygen ion matching air quality index calculation formula it is current to obtain
Air quality index；
S3, current air quality index is compared with preset threshold range, if current air quality index is low
When the minimum value of preset threshold range, the signal control module shows the first color for control instructions lamp；If current
Air quality index is in preset threshold range, and the signal control module shows the second color for control instructions lamp；If
When current air quality index is higher than the maximum value of preset threshold range, the signal control module is aobvious for control instructions lamp
Show third color.
Compared with prior art, the present invention beneficial effect is:
Air quality detection system of the invention is in such a way that cloud interconnects, so that the detection knot of air quality detecting device
Fruit can be transmitted to cloud server, and then be transmitted on client terminal, allow users to easily obtain corresponding air
Testing result.
Alarm method of the invention knows the quality of current air mass convenient for user.
Detailed description of the invention
Fig. 1 is the circuit theory schematic diagram of the air quality detection system of the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the air quality detecting device of the embodiment of the present invention one；
Fig. 3 is the Structure explosion diagram of the air quality detecting device of the embodiment of the present invention one；
Fig. 4 is the module diagram of the main control MCU of the air quality detecting device of the embodiment of the present invention one；
Fig. 5 is the structural schematic diagram of the air quality detecting device of the embodiment of the present invention two.
Specific embodiment
In order to illustrate the embodiments of the present invention more clearly, Detailed description of the invention a specific embodiment of the invention will be compareed below.
It should be evident that drawings in the following description are only some embodiments of the invention, those of ordinary skill in the art are come
It says, without creative efforts, is also possible to obtain other drawings based on these drawings, and obtain other real
Apply mode.
Embodiment one:
As shown in Figure 1, the air quality detection system of the present embodiment include air quality detecting device, cloud server and
User terminal, air quality detecting device and cloud server wireless communication connect, and air quality detecting device will test result
It is uploaded to cloud server, cloud server is stored and analyzed to testing result, for example, can be to the sky of preset time period
Gas mass change information is analyzed, preferably to carry out surrounding air improvement.Air quality detecting device have negative oxygen from
Sub- sensor, negative oxygen ion sensor are used to detect the negative oxygen ion concentration in air；User terminal is wired with cloud server
Or wireless communication connection, user terminal can obtain the testing result of air quality detecting device, detection by cloud server
It as a result include negative oxygen ion concentration.The air quality detection system of the present embodiment is in such a way that cloud interconnects, so that air quality
The testing result of detection device can be transmitted to cloud server, and then be transmitted on client terminal, and it is convenient to allow users to
Ground obtains corresponding air detection result.
Specifically, as shown in Figures 2 and 3, the air quality detecting device of the present embodiment, including shell 1 and it is mounted on shell 1
It internal negative oxygen ion sensor 2, comprehensive detection portion 3, power supply 4, main control MCU, wireless module and is mounted on aobvious on shell 1
Display screen 5, indicator light, negative oxygen ion sensor 2 are used to detect the concentration of negative oxygen ion in air；Comprehensive detection portion 3 is for detecting
Other quality index in air, comprehensive detection portion 3 include carbon dioxide sensor, carbon monoxide transducer, PM2.5 sensor,
One of Detection of Air Quality sensors such as temperature sensor, humidity sensor, formaldehyde sensor, TVOC sensor are more
Kind；For being powered to above-mentioned each component, main control MCU and all sensors, wireless module, refer to display screen 5 power supply 4
Show that lamp communicates to connect, the testing result that main control MCU is used to control all the sensors is shown on a display screen, is also used to control
Indicator light shows different colors to feed back the quality of current environment air quality, such as: indicator light is displayed in red, and indicates current
Ambient air quality is poor；Indicator light shows yellow, indicates that current environment air quality is good；Indicator light display green, indicates current
Ambient air quality is excellent；Wireless module with cloud server or user terminal communication for connecting, by the detection of each sensor
Data are sent to cloud server, are transmitted on user's handheld terminal from cloud server, or be directly transferred to user's
User terminal, so that user can remotely monitor.Wireless module can be the wireless communication modules such as WIFI module, bluetooth module.
Specifically, shell 1 includes cylinder 11, pedestal 12 and top cover 13, the both ends open of cylinder 11, the i.e. top of cylinder 11
And bottom opening, the cross section of cylinder 11 is square structure, and the corner of square structure uses arc-shaped transition, so that cylinder 11
Structure it is smooth.The bottom opening of cylinder 11 is equipped with pedestal 12, and specifically, the top of pedestal 12 has ring-shaped step 121, cylinder
11 bottom opening is resisted against on ring-shaped step 121, so that the outer wall of cylinder 11 is flushed with the outer wall of pedestal 12.Cylinder 11
Top opening is equipped with top cover 13.Preferably, pedestal 12 can be designed using heavy structure, improved air quality detecting device and placed
Stability.
The inclination of negative oxygen ion sensor 2 is laid in shell 1, and specifically, comprehensive detection portion 3 is horizontally arranged at pedestal 12
On, before the downside of negative oxygen ion sensor 2 is resisted against on pedestal 12, and negative oxygen ion sensor 2 is resisted against comprehensive detection portion 3
Installation space is saved so that negative oxygen ion sensor 2 is in heeling condition in side, so that air quality detecting device minimizes, just
In carrying.
Shell 1 has the air intake a and air outlet slit b of the air channel one corresponding to negative oxygen ion sensor, air
Entrance a and air outlet slit b is located at the two sides in negative oxygen ion sensor perturbations direction.Specifically, top cover 13 is cyclic structure,
Display screen 5 is arranged in the top of the annular mouth of top cover 13, and display screen 5 is preferably LED display；It is close between top cover 13 and display screen 5
Envelope connection only offers air intake a on rear side of the junction of top cover 13 and display screen 5, i.e. air intake a is located at shell 1
The rear side at top, air intake a are made of several through-holes；Correspondingly, air outlet slit b is offered on front side of the bottom of cylinder 11,
Air outlet slit b is made of several through-holes.The Position Design of vacancy entrance a and air outlet slit b, so that air intake a goes out with air
The air duct constituted between mouth b is distributed along the inclined direction of negative oxygen ion sensor 2, improves the detection of negative oxygen ion sensor 2
Precision.
Also there is tunnel inlet and the outlet of the air channel two corresponding to comprehensive detection portion 3, tunnel inlet c in shell 1
The two sides of shell are located at outlet.Specifically, tunnel inlet c is located at the right side of the bottom of cylinder 11, if tunnel inlet c by
Dry through-hole composition；Ducting outlet is located at the left side of the bottom of cylinder 11, and ducting outlet is made of several through-holes；So that comprehensive detection
The air channel two in portion 3 is mutually indepedent (not being overlapped) with the air channel one of negative oxygen ion sensor, is conducive to improve air
The precision of quality testing.Wherein, air outlet slit b, tunnel inlet c and outlet are laid along the circumferential direction of cylinder 11 constitutes ring structure,
So that overall structure is symmetrical, it is more beautiful.
The indicator light of the present embodiment is integrated in the structure of top cover, i.e., by the color change of top cover, feeds back current environment
The quality of air quality.
In order to keep air quality detecting device easy to carry, the shell of the present embodiment has pulling part, and pulling part is lifting
Groove, the i.e. middle and upper part of the arranged on left and right sides of cylinder 11 are respectively provided with the installing port of lifting groove, installation lifting groove in installing port
6, user need to only hold lifting groove 6, can carry air quality detecting device, very convenient.Preferably, the side peace of cylinder
Dress lifting groove；In addition, being additionally provided with power connection 7 on shell, power connection 7 is electrically connected with power supply 4, convenient for power supply 4
Charging, so that power supply 4 has sufficient electricity supply；Moreover, being additionally provided with the switch 8 of wireless module, 9 and of detection switch on shell
Device switch 10 opens or closes to control wireless module, and detection opens or closes, and device opens or closes.
Specifically, as shown in figure 4, the main control MCU of the present embodiment includes receiving module, computing module, comparison module and letter
Number control module, receiving module are used to receive the testing result of each sensor；Computing module to each sensor for detecting to obtain
The concentration of pollutant and the concentration matching air quality index calculation formula of negative oxygen ion obtain current air quality and refer to
Number；Comparison module is for current air quality index to be compared with preset threshold range；If current air quality refers to
When number is lower than the minimum value of preset threshold range, signal control module shows the first color for control instructions lamp, such as: it is green
It is excellent to represent current air quality for color；If current air quality index is in preset threshold range, signal control module is used
The second color is shown in control instructions lamp, such as: it is good to represent current air quality for yellow；If current air quality index
Higher than preset threshold range maximum value when, signal control module shows third color for control instructions lamp, such as: it is red,
It is poor to represent current air quality.Wherein, air quality index calculation formula are as follows:
Wherein, AQI is air quality index, and α is preset proportionality coefficient, and c is the concentration of the negative oxygen ion of current environment,
c0For preset negative oxygen ion concentration mark limit value,Need to meet less than 1, and with the raising of negative oxygen ion concentration in air and
Increasing, i is pollutant serial number,λiFor the pollution index of i-th kind of pollutant, kiIt is polluted for i-th kind
The weight coefficient of object, ciFor the concentration of i-th kind of pollutant, siFor the mark limit value of the concentration of i-th kind of pollutant, n is the kind of pollutant
Class quantity.In addition, the main control MCU of the present embodiment can also include setup module, setup module is connect with computing module, and mould is arranged
Block is for being arranged α, c0、si。
Air quality detecting device in the air quality detection system of the present embodiment is constituted using the structure of shell itself
The air duct of negative oxygen ion detection, is omitted the exposed air hose except shell, and be convenient for carrying；Moreover, the air on shell enters
Mouth and air outlet slit are located at the two sides in negative oxygen ion sensor perturbations direction, improve the detection essence of negative oxygen ion concentration
Degree.In addition, the air quality detecting device of the present embodiment comprehensively considers optimization of the negative oxygen ion to air quality in air, so that
The feedback of air quality index is more accurate.
Corresponding to the air quality detection system of the present embodiment, the present embodiment also provides the alarm of air quality detection system
Method, comprising the following steps:
The concentration of S1, the concentration for obtaining pollutant and negative oxygen ion；Specifically, in the present embodiment air quality detecting device
Negative oxygen ion sensor, carbon dioxide sensor, carbon monoxide transducer, PM2.5 sensor, formaldehyde sensor, TVOC pass
Sensor obtains the concentration of negative oxygen ion and the concentration of corresponding pollutant respectively；
S2, by the concentration of pollutant and the concentration of negative oxygen ion matching air quality index calculation formula it is current to obtain
Air quality index；Specifically, the concentration for the pollutant that the computing module of main control MCU detects each sensor and negative oxygen
The concentration matching air quality index calculation formula of ion obtains current air quality index AQI:
Wherein, α is preset proportionality coefficient, and c is the concentration of the negative oxygen ion of current environment, c0For preset negative oxygen ion
Concentration mark limit value,It need to meet less than 1, and increase with the raising of negative oxygen ion concentration in air, i is pollutant sequence
Number,λiFor the pollution index of i-th kind of pollutant, kiFor the weight coefficient of i-th kind of pollutant, ci
For the concentration of i-th kind of pollutant, siFor the mark limit value of the concentration of i-th kind of pollutant, n is the number of species of pollutant.
S3, current air quality index AQI is compared with preset threshold range, if current air quality index
Lower than preset threshold range minimum value when, signal control module shows the first color for control instructions lamp；If current sky
Makings volume index is in preset threshold range, and signal control module shows the second color for control instructions lamp；If current
When air quality index is higher than the maximum value of preset threshold range, signal control module shows third face for control instructions lamp
Color.Specifically, the comparison module of main control MCU is compared current air quality index AQI with preset threshold range, if working as
When preceding air quality index is lower than the minimum value of preset threshold range, signal control module shows first for control instructions lamp
Color, such as: it is excellent to represent current air quality for green；If current air quality index is in preset threshold range, letter
Number control module shows the second color for control instructions lamp, such as: it is good to represent current air quality for yellow；If current
When air quality index is higher than the maximum value of preset threshold range, signal control module shows third face for control instructions lamp
Color, such as: it is red, it is poor to represent current air quality.
In addition, the air quality detecting device of the present embodiment can also be by wireless module by current air quality index
Cloud server is sent to for statistical analysis to the air quality in a period of time, it can also will be current by wireless module
Air quality index be sent to the user terminal, so that user is long-range you can learn that current air quality index.
The alarm method of the air quality detection system of the present embodiment is fed back current by the color difference that indicator light is shown
The quality of air quality, simple, intuitive.Moreover, optimization of the negative oxygen ion to air quality in air is comprehensively considered, so that air
The feedback of quality is more accurate.
Embodiment two:
The air quality detection system of the present embodiment and embodiment one the difference is that: air quality detecting device
Structure is different.
Specifically, as shown in figure 5, the pulling part of the shell of the present embodiment is lift-pull handle 100, specifically, a left side for cylinder,
The middle and upper part of right two sides is respectively provided with shaft, and the both ends of the lift-pull handle of arch are rotatably connected on the shaft of cylinder two sides respectively
On, user only needs portable lift-pull handle, can carry air quality detecting device, very convenient.Realize Detection of Air Quality dress
The structure diversification set.
Other structures can be with reference implementation example one.
The alarm method reference implementation example one of the air quality detection system of the present embodiment.
Embodiment three:
The air quality detection system of the present embodiment and embodiment one the difference is that: air quality detecting device
Structure is different.
Specifically, the air quality detecting device of the present embodiment can be omitted the structure in comprehensive detection portion, be served only for detecting
The concentration of negative oxygen ion in air, simplifies the structure of air quality detecting device, to meet the different demands of user.In addition,
Also one of various sensors or a variety of included by comprehensive detection portion be can be omitted, to meet the different demands of user.
Other structures can be with reference implementation example one.
The alarm method reference implementation example one of the air quality detection system of the present embodiment.
Example IV:
The air quality detection system of the present embodiment and embodiment one the difference is that: air quality detecting device
Structure is different.
Specifically, the air quality detecting device of the present embodiment can be omitted WIFI module, display screen, one in indicator light
Kind is a variety of；When omitting display screen, just instead of ring structure, plate structure, air intake not can be set in cylinder top cover
The top in cylinder and the intersection of top cover also can be set in the top of body, can also be arranged on top cover.The present embodiment simplifies
The structure of air quality detecting device, is conducive to the reduction of cost, to meet the different demands of user.
Other structures can be with reference implementation example one.
The alarm method reference implementation example one of the air quality detection system of the present embodiment.
Embodiment five:
The air quality detection system of the present embodiment and embodiment one the difference is that: air quality detecting device
Structure is different.
The indicator light of the air quality detecting device of the present embodiment can with it is integrated or not top cover, shell can be located at outside
The structure diversification of air quality detecting device is realized in any position, to meet the different demands of user.
Other structures can be with reference implementation example one.
The alarm method reference implementation example one of the air quality detection system of the present embodiment.
Embodiment six:
The air quality detection system of the present embodiment and embodiment one the difference is that: air quality detecting device
Structure is different.
Specifically, negative oxygen ion sensor and comprehensive detection portion lay flat bottom inside the shell, air channel one with
Air channel two is same air duct, i.e., the ventilation hole circumferentially laid along the bottom of shell, i.e. oxonium ion sensor and comprehensive detection
Portion shares same air channel structure, convenient for the machine-shaping of air quality detecting device.
Other structures can be with reference implementation example one.
The alarm method reference implementation example one of the air quality detection system of the present embodiment.
It should be noted that above-described embodiment can be freely combined as needed.The above is only to of the invention excellent
Embodiment and principle is selected to be described in detail, for those of ordinary skill in the art, the thought provided according to the present invention,
It will change in specific embodiment, and these changes should also be regarded as the scope of the invention.
Claims (10)
1. a kind of air quality detection system, which is characterized in that whole including air quality detecting device, cloud server and user
End, the air quality detecting device and cloud server wireless communication connect, and the air quality detecting device has negative oxygen
Ion transducer；The user terminal and cloud server are communicated to connect to obtain the testing result of air quality detecting device,
The testing result includes negative oxygen ion concentration.
2. a kind of air quality detection system according to claim 1, which is characterized in that the air quality detecting device
Including shell, the negative oxygen ion sensor is set in shell, and the shell has the air corresponding to negative oxygen ion sensor
The entrance and exit in air duct one.
3. a kind of air quality detection system according to claim 2, which is characterized in that the air quality detecting device
Further include the comprehensive detection portion in the shell, the shell have the air channel two corresponding to comprehensive detection portion entrance and
Outlet；The air channel one is same air duct with air channel two or is not overlapped.
4. a kind of air quality detection system according to claim 3, which is characterized in that the comprehensive detection portion includes two
Aoxidize carbon sensor, carbon monoxide transducer, PM2.5 sensor, temperature sensor, humidity sensor, formaldehyde sensor, TVOC
One of sensor is a variety of.
5. a kind of air quality detection system according to claim 2, which is characterized in that the shell includes both ends open
Cylinder, the bottom opening of cylinder is equipped with pedestal, and the top opening of cylinder is equipped with top cover；The top of the pedestal has annular table
The bottom opening of rank, the cylinder is resisted against on ring-shaped step.
6. according to a kind of described in any item air quality detection systems of claim 2-5, which is characterized in that in the shell also
Equipped with main control MCU, main control MCU and all sensors are communicated to connect；The shell is equipped with to be shown with what main control MCU communicated to connect
Display screen, the display screen are used to show the testing result of each sensor.
7. a kind of air quality detection system according to claim 6, which is characterized in that the air quality detecting device
It further include wireless module, wireless module and main control MCU communicate to connect, and wireless module is used for whole with cloud server and/or user
End wireless communication connection.
8. a kind of air quality detection system according to claim 6, which is characterized in that the shell is equipped with instruction
Lamp, the indicator light and main control MCU communicate to connect, and the indicator light is used to indicate the air quality of current environment.
9. a kind of air quality detection system according to claim 8, which is characterized in that the main control MCU includes receiving
Module, computing module, comparison module and signal control module, the receiving module are used to receive the testing result of each sensor；
The concentration for the pollutant that the computing module is used to detect each sensor and the concentration of negative oxygen ion match air matter
Volume index calculation formula obtains current air quality index；The comparison module is used for current air quality index and one
Preset threshold range is compared；If current air quality index is lower than the minimum value of preset threshold range, the signal
Control module shows the first color for control instructions lamp；If current air quality index is in preset threshold range, institute
It states signal control module and shows the second color for control instructions lamp；If current air quality index is higher than preset threshold range
Maximum value when, the signal control module for control instructions lamp show third color；
Wherein, the air quality index calculation formula are as follows:
Wherein, AQI is air quality index, and α is preset proportionality coefficient, and c is the concentration of the negative oxygen ion of current environment, c0For
Preset negative oxygen ion concentration mark limit value,Need to meet less than 1, i is pollutant serial number,λi
For the pollution index of i-th kind of pollutant, kiFor the weight coefficient of i-th kind of pollutant, ciFor the concentration of i-th kind of pollutant, siIt is
The mark limit value of the concentration of i kind pollutant, n are the number of species of pollutant.
10. the alarm method of air quality detection system as claimed in claim 9, which comprises the following steps:
The concentration of S1, the concentration for obtaining pollutant and negative oxygen ion；
S2, the concentration of pollutant and the concentration of negative oxygen ion are matched into air quality index calculation formula to obtain current air
Performance figure；
S3, current air quality index is compared with preset threshold range, if current air quality index is lower than pre-
If when the minimum value of threshold range, the signal control module shows the first color for control instructions lamp；If current air
Performance figure is in preset threshold range, and the signal control module shows the second color for control instructions lamp；If current
Air quality index when being higher than the maximum value of preset threshold range, the signal control module shows for control instructions lamp
Three colors.
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