CN108181217A - Detection of Air Quality circuit - Google Patents
Detection of Air Quality circuit Download PDFInfo
- Publication number
- CN108181217A CN108181217A CN201810045191.1A CN201810045191A CN108181217A CN 108181217 A CN108181217 A CN 108181217A CN 201810045191 A CN201810045191 A CN 201810045191A CN 108181217 A CN108181217 A CN 108181217A
- Authority
- CN
- China
- Prior art keywords
- microcontroller
- detection
- air quality
- triode
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 230000003287 optical effect Effects 0.000 claims abstract description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 230000007717 exclusion Effects 0.000 claims abstract description 4
- 239000013078 crystal Substances 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 201000008827 tuberculosis Diseases 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Abstract
The present invention relates to Detection of Air Quality circuits, the base stage of second triode is connected by the I/O ports of microcontroller, and the transmitter for passing through the second triode is connected to optical air mass sensor, the grounded collector of two or three pole, the signal input part of microcontroller is accessed after the input terminal of the output terminal connection A/D conversion chips of optical air mass sensor, the display signal output end of microcontroller connects display module by exclusion.The Detection of Air Quality circuit of the present invention, simple in structure, the operation is stable, debugging is convenient, accuracy of detection is high, can facilitate and the air quality of surrounding is detected and shown, while user also is able to carry out voluntarily arrange parameter according to specific environment.
Description
Technical field
The present invention relates to circuit structures, are concretely Detection of Air Quality circuits.
Background technology
With the fast development of industry, air quality also constantly deteriorates, and thick weather increases, exceeded in air to may be inhaled
Particulate matter causes many people with respiratory diseases such as tuberculosis.The mankind increasingly increase the monitoring attention degree of environment.In order to
It allows it was recognized that the presence of pellet and its harm.In addition to carrying out the universal of rudimentary knowledge, it is also necessary to intuitive
Allow it is seen that the mass parameter of oneself surrounding air.Therefore a kind of portable, inexpensive, low-power consumption monitoring instrument be must
Indispensable.
Invention content
The present invention provides a kind of Detection of Air Quality circuit, the air quality to surrounding to be facilitated to be detected and is carried out
It has been shown that, while user also can carry out voluntarily arrange parameter according to specific environment.
The Detection of Air Quality circuit of the present invention connects the base stage of the second triode, and lead to by the I/O ports of microcontroller
The transmitter for crossing the second triode is connected to optical air mass sensor, the grounded collector of the two or three pole, optical air matter
The signal input part of microcontroller, the display of microcontroller are accessed after the input terminal of the output terminal connection A/D conversion chips of quantity sensor
Signal output end connects display module by exclusion.The optical air mass sensor of GP2Y1014 types may be used to surrounding
Inhalable particles concentration is detected, and testing result is converted to digital signal by A/D conversion chips and is returned to microcontroller, and lead to
Microcontroller is crossed to show in the LCD MODULE of such as LCD1602.
Further, base stage of the output terminal of microcontroller also with the first triode is connect, and passes through the collection of the first triode
Electrode connection the second indicator light and buzzer in parallel, the emitter of the first triode connect power supply.Other than display reminding, when can
After sucking threshold value of the concentration more than setting of particle, it can also be warned by buzzer and the second indicator light.One or three pole
Pipe protects microcontroller as switching circuit, can also play the role of amplifying electric current, when the base stage of the first triode is high level
When, emitter cut-off, when base stage is low level, emitter conducting.
Further, the setting port of microcontroller is connected separately with the button for arrange parameter, is respectively used to detection
The increase of threshold value is reduced and is determined.
Further, microcontroller reset terminal connection with reset key reset circuit, when program operation it is abnormal or
During crash, it can be resetted.When there are 2 high level more than machine cycle, microcontroller just performs reset automatically
Operation.If reset terminal is continuously high level, microcontroller is at cycle reset state.When reset key is not pressed
It waits circuit and realizes electrification reset, reset terminal can also be made the effect that high level reaches hand-reset occur by pressing reset key
Fruit.
Further, clock oscillation circuit of the clock port connection with crystal oscillator of microcontroller, when providing work for circuit
Clock sequence.
Preferably, the working condition port of microcontroller is connected with the first indicator light, can facilitate sight by the first indicator light
Examine the working condition of circuit.
The Detection of Air Quality circuit of the present invention, simple in structure, the operation is stable, debugging is convenient, accuracy of detection is high, Neng Goufang
Just the air quality of surrounding is detected and shown, while user also is able to voluntarily be set according to specific environment
Parameter.
Specific embodiment with reference to embodiments is described in further detail the above of the present invention again.
But the range that this should not be interpreted as to the above-mentioned theme of the present invention is only limitted to following example.Think not departing from the above-mentioned technology of the present invention
In the case of thinking, the various replacements or change made according to ordinary skill knowledge and customary means should all be included in this hair
In bright range.
Description of the drawings
Fig. 1 is the circuit diagram of Detection of Air Quality circuit of the present invention.
Specific embodiment
The Detection of Air Quality circuit of the present invention as shown in Figure 1, passes through the I/O ports P1.3 of STC89C52 type microcontrollers U1
The base stage of the second triode Q2 is connected, and the transmitter for passing through the second triode Q2 is connected to the optical air matter of GP2Y1014 types
Quantity sensor U2, the grounded collector GND of the second triode Q2.The output terminal OUT connections of optical air mass sensor U2
The signal input part of microcontroller U1 is accessed after the input terminal of the A/D conversion chips U3 of ADC0832 types.The display signal of microcontroller U1
Output terminal P0.0~P0.7 passes through exclusion P2 connection LCD1602 LCD MODULEs P1.The setting port P3.7 of microcontroller U1,
P3.6, P3.5 are connected separately with button S2~S4 for arrange parameter, are respectively used to increase, reduction of the user to detection threshold value
With determine.Meanwhile base stages of the output terminal P1.5 of microcontroller U1 also with the first triode Q1 is connect, and passes through the first triode Q1
In parallel the second indicator light D2 of collector connection and buzzer BE, the emitter of the first triode Q1 meet power supply VCC, when can inhale
After threshold value of the concentration more than setting for entering particle, warned by buzzer BE and the second indicator light D2.Because the one or three pole
Pipe Q1 is current control device, after the base stage of the first triode Q1 receives the signal of microcontroller U1, then makes collector voltage
Increase, buzzer BE starts to work.When the concentration of pellet is more than threshold value, microcontroller U1 control buzzer BE rings
Prompting is transfinited, and controlling switch is connected on the output terminal P1.5 of microcontroller U1, is protected by the use of the first triode Q1 as switching circuit
While microcontroller U1, it can also play the role of amplifying electric current, when the base stage of the first triode Q1 is high level, emitter
Cut-off, when base stage is low level, emitter conducting.Reset circuit of the reset terminal connection with reset key S1 of microcontroller U1,
For being resetted in circuit abnormality to microcontroller U1.Crystal oscillator of the clock port connection with 11.0592MHz of microcontroller U1
The clock oscillation circuit of Y1.The working condition port EA/VPP of microcontroller U1 is connected with the first indicator light D1, for observing monolithic
The working condition of machine U1.
Claims (6)
1. Detection of Air Quality circuit, it is characterized in that：The base of second triode (Q2) is connected by the I/O ports of microcontroller (U1)
Pole, and the transmitter for passing through the second triode (Q2) is connected to optical air mass sensor (U2), the second triode (Q2)
Grounded collector (GND), the input terminal of the output terminal connection A/D conversion chips (U3) of optical air mass sensor (U2) are followed by
Enter the signal input part of microcontroller (U1), the display signal output end of microcontroller (U1) connects display module by exclusion (P2)
(P1)。
2. Detection of Air Quality circuit as described in claim 1, it is characterized in that：The output terminal of microcontroller (U1) is also with the one or three
The base stage connection of pole pipe (Q1), and pass through the second indicator light (D2) and the buzzing of the collector connection parallel connection of the first triode (Q1)
Device (BE), the emitter of the first triode (Q1) connect power supply (VCC).
3. Detection of Air Quality circuit as described in claim 1, it is characterized in that：The setting port of microcontroller (U1) connects respectively
It is useful for the button (S2~S4) of arrange parameter.
4. Detection of Air Quality circuit as described in claim 1, it is characterized in that：The reset terminal connection of microcontroller (U1) has multiple
The reset circuit of position button (S1).
5. the Detection of Air Quality circuit as described in one of Claims 1-4, it is characterized in that：The clock port of microcontroller (U1)
Clock oscillation circuit of the connection with crystal oscillator (Y1).
6. the Detection of Air Quality circuit as described in one of Claims 1-4, it is characterized in that：The working condition of microcontroller (U1)
Port is connected with the first indicator light (D1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045191.1A CN108181217A (en) | 2018-01-17 | 2018-01-17 | Detection of Air Quality circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810045191.1A CN108181217A (en) | 2018-01-17 | 2018-01-17 | Detection of Air Quality circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108181217A true CN108181217A (en) | 2018-06-19 |
Family
ID=62550863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810045191.1A Pending CN108181217A (en) | 2018-01-17 | 2018-01-17 | Detection of Air Quality circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108181217A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203179238U (en) * | 2013-04-22 | 2013-09-04 | 西安科技大学 | Detection and alarm safety device for flammable gas leakage |
| CN104749078A (en) * | 2015-04-13 | 2015-07-01 | 武汉大学 | PM2.5 concentration detector |
| CN105510202A (en) * | 2016-01-08 | 2016-04-20 | 邹斌 | Real-time indoor air quality detection system |
| CN205334692U (en) * | 2016-01-08 | 2016-06-22 | 董施威 | Indoor air quality real -time detection system |
| CN207689326U (en) * | 2018-01-17 | 2018-08-03 | 攀枝花学院 | Detection of Air Quality circuit |
-
2018
- 2018-01-17 CN CN201810045191.1A patent/CN108181217A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203179238U (en) * | 2013-04-22 | 2013-09-04 | 西安科技大学 | Detection and alarm safety device for flammable gas leakage |
| CN104749078A (en) * | 2015-04-13 | 2015-07-01 | 武汉大学 | PM2.5 concentration detector |
| CN105510202A (en) * | 2016-01-08 | 2016-04-20 | 邹斌 | Real-time indoor air quality detection system |
| CN205334692U (en) * | 2016-01-08 | 2016-06-22 | 董施威 | Indoor air quality real -time detection system |
| CN207689326U (en) * | 2018-01-17 | 2018-08-03 | 攀枝花学院 | Detection of Air Quality circuit |
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