CN105866335A - Intelligent air quality monitoring apparatus - Google Patents
Intelligent air quality monitoring apparatus Download PDFInfo
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- CN105866335A CN105866335A CN201610221793.9A CN201610221793A CN105866335A CN 105866335 A CN105866335 A CN 105866335A CN 201610221793 A CN201610221793 A CN 201610221793A CN 105866335 A CN105866335 A CN 105866335A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24024—Safety, surveillance
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- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
Abstract
The invention belongs to the technical field of intelligent home, and concretely relates to an intelligent air quality monitoring apparatus. The apparatus comprises a temperature sensor, a humidity sensor, an oxygen sensor, an ammonia gas sensor, a volatile organic compound sensor, a dust sensor, a central processor, an LED, a wireless transmission module and an air purifying device, the temperature sensor and the humidity sensor are connected with the common IO port of the central processor, the oxygen sensor and the ammonia gas sensor are connected with the simulation port of the central processor, the volatile organic compound sensor is connected with the IIC peripheral equipment of the central processor, the dust sensor is connected with the capture input IO of the central processor, the central processor comprises A/D conversion, table look-up and evaluation, and data processing, the data processing is connected with the wireless transmission module and the LED, and the wireless transmission module is connected with the air purifying device. The apparatus solves the problem of poor air quality monitoring effect caused by singleness of pollution source kind monitored by present air quality monitoring products and low monitoring precision.
Description
Technical field
The invention belongs to Smart Home technical field, be specifically related to a kind of intelligent air quality monitoring device.
Background technology
Along with improving constantly of human industryization degree, people once ignored the seriousness of environmental pollution.Nowadays, along with people
Improving constantly of living standard, especially in some a line city, such as Beijing, Shanghai, Guangzhou etc., environmental pollution has allowed
People think that the comfort lived is not good enough.Seem in some North Cities and be particularly acute, the most almost visible haze every day sky
Gas creates certain puzzlement to urbanite.Therefore, people's comfortableness pay attention to day by day to living environment, monitor space in real time
Air quality situation in environment becomes heat subject of concern.At present, occur in that some air quality monitorings are produced on the market
Product, can play certain monitoring effect, but, the polluter kind that these air quality monitoring product surveillances arrive is single, and
Monitoring accuracy is relatively low, and the monitoring effect of air quality is less desirable.
Summary of the invention
It is an object of the invention to: aim to provide a kind of intelligent air quality monitoring device, in order to solve now air quality monitoring at present
Product surveillance to polluter kind is single, the relatively low problem causing air quality monitoring poor effect of monitoring accuracy.
For realizing above-mentioned technical purpose, the technical solution used in the present invention is as follows: a kind of intelligent air quality monitoring device, including
Temperature sensor, humidity sensor, oxygen sensor, ammonia gas sensor, volatile organic matter sensor, dust sensor,
Central processing unit, LED, wireless transport module and air cleaning facility, described temperature sensor and humidity sensor are that physics passes
Sensor, described oxygen sensor is electrochemical sensor, and described ammonia gas sensor and volatile organic matter sensor are partly to lead
Body chemical sensor, described dust sensor is infrared diffusion sensor, described temperature sensor and humidity sensor defeated
Go out end to be connected with the common I/O port of central processing unit, the outfan of described oxygen sensor and ammonia gas sensor and central processing unit
Analog port connects, and the outfan of described volatile organic matter sensor is connected with the IIC peripheral hardware of central processing unit, described dust
The outfan of sensor inputs IO with the seizure of central processing unit and is connected, and described central processing unit includes A/D conversion, tables look-up and ask
Value and data process, and the outfan of the common I/O port of described central processing unit, IIC peripheral hardware and seizure input IO processes with data
Input connect, the analog port outfan of described central processing unit and A/D conversion, table look-up evaluation and data process connects successively
Connecing, the outfan that described data process divides two branch roads to be connected with wireless transport module and LED respectively, described wireless transport module
Outfan be connected with the input of air cleaning facility.
The invention of employing technique scheme, after powering on, temperature sensor, humidity sensor, volatile organic matter sensor,
The content information of the temperature in spatial environments, humidity, volatile organic matter and dust is passed to centre by dust sensor in real time
Reason device, and pass to data process, oxygen sensor and ammonia gas sensor are by the oxygen in spatial environments and the content of ammonia simultaneously
Pass to A/D by the analog port of central processing unit change, it is achieved analogue signal is converted to digital signal, the signal after conversion
Passing to data after obtaining actual concentrations data by evaluation of tabling look-up process, data process and receive temperature, humidity, volatility have
It is analyzed after the content data of machine thing, dust, oxygen and ammonia and processes, then outputing signal to LED and show, when
When finding air quality exception, transmit a control signal by wireless transport module to air cleaning facility, make air cleaning set
Standby switch is opened, thus can realize the air cleaning in spatial environments.Such structure designs, the polluter not only monitored
Kind is many, and monitoring accuracy is high, and the processing speed of data is fast, and the monitoring effect of air quality is ideal.
Further, main frame, server and mobile phone A PP, the outfan of described wireless transport module and the input of main frame are also included
The input wired connection of wireless connections, the outfan of described main frame and server, the outfan of described server and mobile phone A PP
Input wireless connections.
Also include the input wireless connections of main frame, server and mobile phone A PP, the outfan of described wireless transport module and main frame,
The input wired connection of the outfan of described main frame and server, the outfan of described server and the input of mobile phone A PP without
Line connects, and such structure designs, and the gas data after data process is transmitted to main frame by wireless transport module, in abnormal feelings
Just reported a secondary data to main frame every 15 seconds under condition, reported once every 1 hour under normal circumstances, after data report main frame,
Main frame carries out whole bag, then uploads onto the server, when user needs to know current air mass, it is only necessary to refresh mobile phone A PP
Interface, mobile phone A PP just can get new data from server and send a signal, even if family no one, user can also
The situation of solution air quality to home.
Further, described central processing unit is PIC18 series monolithic.
Described central processing unit is PIC18 series monolithic, and such structure designs, and the processing speed of data is faster, anti-dry
Disturb ability higher.
Accompanying drawing explanation
The present invention can be further illustrated by the nonlimiting examples that accompanying drawing is given；
Fig. 1 is the structural representation of the embodiment of the present invention a kind of intelligent air quality monitoring device.
Detailed description of the invention
In order to make those skilled in the art that the present invention be may be better understood, below in conjunction with the accompanying drawings with embodiment to the technology of the present invention
Scheme further illustrates.
As it is shown in figure 1, a kind of intelligent air quality monitoring device of the present invention, including temperature sensor, humidity sensor, oxygen
Gas sensor, ammonia gas sensor, volatile organic matter sensor, dust sensor, central processing unit, LED, it is wirelessly transferred mould
Block, air cleaning facility, main frame, server and mobile phone A PP, central processing unit is PIC18 series monolithic, temperature sensing
Device and humidity sensor are physical sensors, and oxygen sensor is electrochemical sensor, and ammonia gas sensor and volatile organic matter pass
Sensor is semiconductor chemical sensor, and dust sensor is the defeated of infrared diffusion sensor, temperature sensor and humidity sensor
Go out end to be connected with the common I/O port of central processing unit, the outfan of oxygen sensor and ammonia gas sensor and the simulation of central processing unit
Port connects, and the outfan of volatile organic matter sensor is connected with the IIC peripheral hardware of central processing unit, the output of dust sensor
Holding the seizure with central processing unit to input IO to be connected, central processing unit includes A/D conversion, table look-up evaluation and data process, central authorities
The input that the outfan of the common I/O port of processor, IIC peripheral hardware and seizure input IO processes with data is connected, and central authorities process
The analog port outfan of device and A/D conversion, evaluation and the data of tabling look-up process and are sequentially connected with, and the outfan that data process divides two
Branch road is connected with wireless transport module and LED respectively, and the outfan of wireless transport module is connected with the input of air cleaning facility,
The outfan of wireless transport module and the input wired connection of the input wireless connections of main frame, the outfan of main frame and server,
The outfan of server and the input wireless connections of mobile phone A PP.
In the present embodiment, after powering on, temperature sensor, humidity sensor, volatile organic matter sensor, dust sensor will
The content information of temperature, humidity, volatile organic matter and dust in spatial environments passes to central processing unit in real time, and transmits
Processing to data, the content of the oxygen in spatial environments and ammonia is processed by oxygen sensor and ammonia gas sensor by central authorities simultaneously
The analog port of device passes to A/D conversion, it is achieved analogue signal is converted to digital signal, and the signal after conversion is by evaluation of tabling look-up
Pass to after obtaining actual concentrations data data process, data process receive temperature, humidity, volatile organic matter, dust,
It is analyzed after the content data of oxygen and ammonia and processes, then outputing signal to LED and show, when finding air quality
Time abnormal, transmit a control signal by wireless transport module to air cleaning facility, make air cleaning facility switch open,
Thus the air cleaning in spatial environments can be realized.
The outfan of temperature sensor and humidity sensor is connected with the common I/O port of central processing unit, and oxygen sensor and ammonia pass
The outfan of sensor is connected with the analog port of central processing unit, the outfan of volatile organic matter sensor and central processing unit
IIC peripheral hardware connects, and the outfan of dust sensor inputs IO with the seizure of central processing unit and is connected, and such rational deployment can
To avoid the interference between each sensor, improve the precision of monitoring, improve the monitoring effect of air quality.
It is pointed out that the setting of main frame, server and mobile phone A PP, primary concern is that, the gas number after data process
Transmit to main frame according to by wireless transport module, just reported a secondary data to main frame, normal condition every 15 seconds in abnormal cases
Under reported once every 1 hour, after data report main frame, main frame carries out whole bag, then uploads onto the server, when user need
During current air mass to be known, it is only necessary to refreshing mobile phone A PP interface, mobile phone A PP just can get new data from server
Sending a signal, even if family no one, user also is understood that the situation of air quality to home.
It addition, central processing unit is PIC18 series monolithic, such structure designs, and the processing speed of data is faster, anti-dry
Disturb ability higher.It practice, other kinds of processor can also be selected according to practical situation.
Temperature sensor and humidity sensor are physical sensors, and in the case of temperature difference, the electromotive force that thermocouple produces is different,
A kind of energy transducer of thermocouple, converts heat energy into electric energy, can measure temperature by produced thermoelectrical potential,
In the case of humidity difference, the capacitance of capacitive original paper can change, and has degree of precision.
The aerial content of oxygen is typically no variation in, but the minor variations of oxygen content can cause the many reflections of human body.For
Measurement oxygen content, use the sensor of galvanic element be most economical effectively.The reduction that oxygen occurs on the working electrode (s is anti-
The corresponding reduction reaction that should occur with cathode material produces electric current, and the size of electric current and the concentration of oxygen are directly proportional, by test electricity
The size of stream i.e. can determine that the size of oxygen concentration.
Measure ammonia and mainly use the sensor with stannic oxide electrode, tin ash and other metal-oxide semiconductor (MOS)s
Being sensitive to light concentration gas, during work, the agglomerate of quasiconductor can be heated and be resistively heated to uniform temperature, and detects it
Conductance.Reproducibility or oxidizing gas are in the notable change adding the device conducts caused that interacts on hot surface with absorption oxygen.
When tin ash element contacts with tested gas, once react with absorption oxygen, n the electronics fettered by oxygen discharged,
As reacted with ammonia, plane of crystal conductance increases, and makes device resistance reduce, then by ball bearing made, resistance is converted into voltage
Signal just can be measured.
Volatile organic matter of a great variety, such as aldehydes, arene, esters, its representative is exactly formaldehyde.Due to theirs
Common denominator, it is possible to use integrated integral sensor measures, integral sensor volume is little, and precision is high.
The dust that people are touched substantially can be divided into two classes: PM2.5 and PM10, these granules according to particulate matter diameter
Thing is evenly distributed in air under the disturbance of air-flow in a jumble.When specific light source irradiates the air particles of air-supply assembly consentrated air supply
Time, collect the light intensity of air particles scattering, light intensity is converted to granule pulse signal；Turned with light intensity by input again
The signal amplification module that the outfan of die change block connects, is amplified granule pulse signal, generates and amplifies granule pulse signal,
After pulse signal exceedes the threshold value of comparator, output pulse signal.For receiving the pulse signal of output, count pulse letter
Number time, i.e. can get the content of dust in environment.
The principle of above-described embodiment merely exemplary explanation present invention and effect thereof, not for limiting the present invention.Any it is familiar with this skill
Above-described embodiment all can be modified under the spirit and the scope of the present invention or change by the personage of art.Therefore, all institutes
Belong to and technical field has all equivalences that usually intellectual is completed under without departing from disclosed spirit and technological thought
Modify or change, must be contained by the claim of the present invention.
Claims (3)
1. an intelligent air quality monitoring device, it is characterised in that: include temperature sensor, humidity sensor, oxygen sensor
Device, ammonia gas sensor, volatile organic matter sensor, dust sensor, central processing unit, LED, wireless transport module and sky
Gas cleaning equipment, described temperature sensor and humidity sensor are physical sensors, and described oxygen sensor is that electrochemistry passes
Sensor, described ammonia gas sensor and volatile organic matter sensor are semiconductor chemical sensor, and described dust sensor is
Infrared diffusion sensor, the outfan of described temperature sensor and humidity sensor is connected with the common I/O port of central processing unit,
The outfan of described oxygen sensor and ammonia gas sensor is connected with the analog port of central processing unit, and described volatile organic matter passes
The outfan of sensor is connected with the IIC peripheral hardware of central processing unit, the outfan of described dust sensor and the seizure of central processing unit
Input IO connects, and described central processing unit includes that A/D conversion, evaluation and the data of tabling look-up process, described central processing unit general
The input that the outfan of logical I/O port, IIC peripheral hardware and seizure input IO processes with data is connected, the mould of described central processing unit
Intending port outfan and A/D conversion, table look-up evaluation and data process and are sequentially connected with, the outfan that described data process divides two to prop up
Road is connected with wireless transport module and LED respectively, and the outfan of described wireless transport module connects with the input of air cleaning facility
Connect.
A kind of intelligent air quality monitoring device the most according to claim 1, it is characterised in that: also include main frame, service
Device and mobile phone A PP, the input wireless connections of the outfan of described wireless transport module and main frame, the outfan of described main frame with
The input wireless connections of the input wired connection of server, the outfan of described server and mobile phone A PP.
A kind of intelligent air quality monitoring device the most according to claim 1 and 2, it is characterised in that: described centre
Reason device is PIC18 series monolithic.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610221793.9A CN105866335A (en) | 2016-04-11 | 2016-04-11 | Intelligent air quality monitoring apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610221793.9A CN105866335A (en) | 2016-04-11 | 2016-04-11 | Intelligent air quality monitoring apparatus |
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| CN105866335A true CN105866335A (en) | 2016-08-17 |
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| CN201610221793.9A Pending CN105866335A (en) | 2016-04-11 | 2016-04-11 | Intelligent air quality monitoring apparatus |
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Cited By (2)
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|---|---|---|---|---|
| CN108572001A (en) * | 2017-03-17 | 2018-09-25 | 上海仪器仪表研究所 | The Portable environmental-monitoring device and method of Animal Lab. |
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Application publication date: 20160817 |