CN204066359U - A kind of air detecting device based on 2.4G wireless network - Google Patents
A kind of air detecting device based on 2.4G wireless network Download PDFInfo
- Publication number
- CN204066359U CN204066359U CN201420279866.6U CN201420279866U CN204066359U CN 204066359 U CN204066359 U CN 204066359U CN 201420279866 U CN201420279866 U CN 201420279866U CN 204066359 U CN204066359 U CN 204066359U
- Authority
- CN
- China
- Prior art keywords
- circuit
- media
- carbon dioxide
- mixed
- liquid crystal
- 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.)
- Expired - Fee Related
Links
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 54
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 27
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 27
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- 239000001301 oxygen Substances 0.000 claims abstract description 27
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000003321 amplification Effects 0.000 claims abstract description 6
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 6
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000000087 stabilizing effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 208000032170 Congenital Abnormalities Diseases 0.000 description 1
- 206010021929 Infertility male Diseases 0.000 description 1
- 208000007466 Male Infertility Diseases 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000021267 infertility disease Diseases 0.000 description 1
- 208000032839 leukemia Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006855 networking Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000036299 sexual function Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Based on an air detecting device for 2.4G wireless network, comprise front-end acquisition circuit, power circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit; Described front-end acquisition circuit comprises the carbon dioxide sensor TGS4161 for detecting carbon dioxide content, and for amplifying the signal amplification circuit of carbon dioxide sensor signal, and for detecting the oxygen detection circuit of oxygen content; Described signal amplification circuit is connected with carbon dioxide sensor; Described power circuit is connected with front-end acquisition circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit; Described 2.4G mixed-media network modules mixed-media is NRF24L01 and peripheral circuit composition; Described 2.4G mixed-media network modules mixed-media is connected with governor circuit; Described governor circuit is made up of ARM, and governor circuit is also connected with liquid crystal display circuit; Can automatically detect the carbon dioxide and oxygen content in air and adopt 2.4G frequency range to carry out wireless transmission to the data detected, transmission speed be fast, and antijamming capability is strong.
Description
Technical field
The utility model relates to a kind of air borne sensor, is specifically related to a kind of air detecting device based on 2.4G wireless network, belongs to air detection technical field.
Background technology
The quality of air quality directly affects the life of people, particularly at the society that industry is flourishing, air quality was once endangering the healthy of people, raising along with people's quality of life and the attention to indoor environmental quality, constantly increase inhabitation and operating environment requirements, air quality becomes the focus that people pay close attention to day by day.
National health, builds and environmental administration's joint investigation finds, in 300 multiple harmful substances that finishing material volatilizes, and formaldehyde, benzene, radons etc. cause cancer, leukaemia, fetal anomaly, infertile, sexual function declines, male sterility, the key factor that children ' s intelligence development is slow.Through investigation, find once to fit up within half a year in the infant man of 90%, because existing Detection of Air Quality means are complicated, need the equipment of specialty and professional could to detect the gas content in family, and cannot often detect, be unfavorable for that family and enterprise use, air quality sensing/controller is not installed in current most of family and workplace, and more complicated to the Detection of Air Quality in community and even whole city, need better detection method.
For home air quality, the air quality understanding family in real time will bring a foundation to life, better betters people's living environment.
The most of air detecting devices occurred on the market now, by the fuzzy adjustment to potentiometer, can only send switching signal at certain gas content higher than during adjusted value, accurately cannot detect gas content usually.And use wired connection, wiring is complicated, and do not have automatic network-building function, ability to communicate is weak, cannot form cluster; Do not support automatic calibration and automatic compensation function, error is large, and serviceable life is short; Device itself does not have control ability, does not support the control to peripherals; Involve great expense, construction is complicated, is unfavorable for widely applying.
Summary of the invention
The utility model is for the problems referred to above, a kind of air detecting device based on 2.4G wireless network is provided, the radio communication of many groups equipment can be realized, understand indoor air quality in time, use with construction deployment simple simultaneously, effectively can reduce overall buying and implementation cost.
The technical scheme in the invention for solving the above technical problem is: comprise front-end acquisition circuit, power circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit; Described front-end acquisition circuit comprises the carbon dioxide sensor TGS4161 for detecting carbon dioxide content, and for amplifying the signal amplification circuit of carbon dioxide sensor signal, and for detecting the oxygen detection circuit of oxygen content; Described signal amplification circuit is connected with carbon dioxide sensor; Described power circuit is connected with front-end acquisition circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit; Described 2.4G mixed-media network modules mixed-media is NRF24L01 and peripheral circuit composition; Described 2.4G mixed-media network modules mixed-media is connected with governor circuit; Described governor circuit is made up of ARM, and governor circuit is also connected with liquid crystal display circuit; Described liquid crystal display circuit comprises LCD1602 liquid crystal display, and drives the HD4478 of liquid crystal display work.
Described carbon dioxide sensor TGS4161 is connected with homophase amplifier CA3140, and the voltage follower that homophase amplifier CA3140 output terminal and LM358 are formed is connected.
Described oxygen detection circuit comprises oxygen sensor port J10, and the amplifier that the OP07EZ be connected with oxygen sensor port J10 is formed, and amplifier output terminal is connected with the voltage follower that LM358 is formed, and oxygen sensor is by port J10 place in circuit.
The value that described carbon dioxide sensor TGS4161 and oxygen sensor are measured is connected with the internal A/D converter of governor circuit by the output terminal of the LM358 of circuit rear class.
Described governor circuit is also connected with circuit for alarming, and described circuit for alarming comprises hummer and the driving triode with hummer series connection, and described transistor base is connected with base biasing resistor.
The utility model has the advantages that:
Can automatically detect the carbon dioxide and oxygen content in air and adopt 2.4G frequency range to carry out wireless transmission to the data detected, transmission speed is fast, antijamming capability is strong, have employed miniwatt cluster transmission and resume mode, long transmission distance, area coverage is wide, and radiation is extremely low, harmless, and without the need to wiring.There is unique networking and resume algorithm, can automatic network-building, form wireless sensing cluster, by trunking mode, gas content various in man is precisely detected.Adopt unique automatic calibration and automatic compensation function, effectively can reduce metrical error, increase the service life.
Accompanying drawing explanation
Fig. 1 is the utility model air detecting device theory diagram;
Fig. 2 is the utility model carbon dioxide testing circuit schematic diagram;
Fig. 3 is the utility model oxygen detection circuit theory diagrams;
Fig. 4 is the utility model power circuit principle figure;
Fig. 5 is the utility model governor circuit schematic diagram;
Fig. 6 is the utility model circuit for alarming schematic diagram;
Fig. 7 is the utility model liquid crystal display circuit schematic diagram;
Fig. 8 is the utility model 2.4G mixed-media network modules mixed-media schematic diagram.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Consult shown in Fig. 1, comprise front-end acquisition circuit, power circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit;
Consult shown in Fig. 2, described front-end acquisition circuit comprises the carbon dioxide sensor TGS4161 for detecting carbon dioxide content, 2 pin of carbon dioxide sensor TGS4161 are connected with 3 pin of CA3140, CA3140 forms a homophase amplifier, the signal be responsible for TGS4161 gathers amplifies, 3 pin of the voltage follower that 6 pin of CA3140 are formed with LM358 are connected, and 1 pin of LM358 connects the AD1 port of governor circuit, and P2 is connected with external circuit as interface;
Consult shown in Fig. 3, for oxygen detection circuit of the present utility model, comprise the port J10 connecting oxygen sensor, and and the amplifier that forms of the OP07EZ that is connected with oxygen sensor port J10, amplifier output terminal is connected with the voltage follower that LM358 is formed, and 1 pin of LM358 is connected with the AD conversion input port of governor circuit;
Consulting shown in Fig. 4, is power circuit of the present utility model, comprises 12V power interface J9, and voltage stabilizing chip KIS3R33, and described KIS3R33 exports the burning voltage of 4V, and rear class is also connected with voltage stabilizing chip LM1117, for governor circuit provides operating voltage; Described power circuit also comprises voltage stabilizing chip LM2940 and MAX660, provides ± 5V dual power supply to circuit;
Consult shown in Fig. 5, governor circuit is made up of ARM, comprises crystal oscillating circuit, and the value that carbon dioxide sensor TGS4161 and oxygen sensor are measured is connected with the internal A/D converter of governor circuit by the output terminal of the LM358 of circuit rear class;
Consult shown in Fig. 6, described governor circuit is also connected with circuit for alarming, the driving triode Q1 that described circuit for alarming comprises hummer SPEAK and connects with hummer SPEAK, and described transistor base is connected with base biasing resistor R4;
Consult shown in Fig. 7, described liquid crystal display circuit comprises LCD1602 liquid crystal display, and drives the HD4478 of liquid crystal display work; Described LCD1602 liquid crystal display is connected with governor circuit;
Consult shown in Fig. 8, be 2.4G mixed-media network modules mixed-media circuit theory diagrams of the present utility model, 2.4G mixed-media network modules mixed-media is connected with governor circuit;
The utility model is by carbon dioxide sensor and oxygen sensor, the carbon dioxide values detect carbon dioxide sensor and oxygen sensor and oxygen convert voltage to, amplified by amplifying circuit, then exported by LM358, the magnitude of voltage of collection is carried out modulus value conversion by the AD converter of governor circuit inside, the pick-up unit of surrounding is sent a signal to, simultaneously by the carbon dioxide of LCD1602 display detection and the concentration of oxygen by 2.4G mixed-media network modules mixed-media.
The foregoing is only preferred embodiment of the present utility model, the utility model includes but not limited to this example, and the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. based on an air detecting device for 2.4G wireless network, it is characterized in that: comprise front-end acquisition circuit, power circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit; Described front-end acquisition circuit comprises the carbon dioxide sensor TGS4161 for detecting carbon dioxide content, and for amplifying the signal amplification circuit of carbon dioxide sensor signal, and for detecting the oxygen detection circuit of oxygen content; Described signal amplification circuit is connected with carbon dioxide sensor; Described power circuit is connected with front-end acquisition circuit, 2.4G mixed-media network modules mixed-media, governor circuit and liquid crystal display circuit; Described 2.4G mixed-media network modules mixed-media is NRF24L01 and peripheral circuit composition; Described 2.4G mixed-media network modules mixed-media is connected with governor circuit; Described governor circuit is made up of ARM, and governor circuit is also connected with liquid crystal display circuit; Described liquid crystal display circuit comprises LCD1602 liquid crystal display, and drives the HD4478 of liquid crystal display work; Described carbon dioxide sensor TGS4161 is connected with homophase amplifier CA3140, and the voltage follower that homophase amplifier CA3140 output terminal and LM358 are formed is connected.
2. the air detecting device based on 2.4G wireless network according to claim 1, it is characterized in that: described oxygen detection circuit comprises oxygen sensor port J10, and the amplifier that the OP07EZ to be connected with oxygen sensor port J10 is formed, amplifier output terminal is connected with the voltage follower that LM358 is formed, and oxygen sensor is by port J10 place in circuit.
3. the air detecting device based on 2.4G wireless network according to claim 1, is characterized in that: the value that described carbon dioxide sensor TGS4161 and oxygen sensor are measured is connected with the internal A/D converter of governor circuit by the output terminal of the LM358 of circuit rear class.
4. the air detecting device based on 2.4G wireless network according to claim 1, it is characterized in that: described governor circuit is also connected with circuit for alarming, described circuit for alarming comprises hummer and the driving triode with hummer series connection, and described transistor base is connected with base biasing resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279866.6U CN204066359U (en) | 2014-05-29 | 2014-05-29 | A kind of air detecting device based on 2.4G wireless network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279866.6U CN204066359U (en) | 2014-05-29 | 2014-05-29 | A kind of air detecting device based on 2.4G wireless network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204066359U true CN204066359U (en) | 2014-12-31 |
Family
ID=52207819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420279866.6U Expired - Fee Related CN204066359U (en) | 2014-05-29 | 2014-05-29 | A kind of air detecting device based on 2.4G wireless network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204066359U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442869A (en) * | 2016-07-26 | 2017-02-22 | 北京工业大学 | Low-power-consumption intelligent SO2 sensor module |
-
2014
- 2014-05-29 CN CN201420279866.6U patent/CN204066359U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442869A (en) * | 2016-07-26 | 2017-02-22 | 北京工业大学 | Low-power-consumption intelligent SO2 sensor module |
| CN106442869B (en) * | 2016-07-26 | 2019-01-04 | 北京工业大学 | Low power-consumption intelligent SO2Sensor module |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204101532U (en) | A kind of novel household environment detector | |
| CN103543773A (en) | Microenvironment intelligent control system and microenvironment intelligent control method | |
| CN104777202A (en) | Fast formaldehyde detection equipment with low power consumption | |
| CN204066359U (en) | A kind of air detecting device based on 2.4G wireless network | |
| CN204462115U (en) | A kind of greenhouse gases detector | |
| CN203216997U (en) | On-line detector for ground resistor | |
| CN103049984B (en) | Combustible gas alarm instrument based on Wireless HART communication technology | |
| CN204903345U (en) | Reliable dust concentration detector of high stable | |
| CN205373775U (en) | Portable humiture ultraviolet ray detector | |
| CN204167884U (en) | Survey and protect the universal microcomputer protecting device of merger | |
| CN204374272U (en) | A kind of mutual inductor mode transformer grounding leakage current wireless monitoring device | |
| CN203573477U (en) | Effective wireless monitoring data receiving/transmitting device for grain drying equipment | |
| CN206291961U (en) | A kind of UV detection system based on STM32 | |
| CN204065885U (en) | Intelligent herding warden of a school dormitory Ore-controlling Role | |
| CN201628683U (en) | Biogas detection circuit | |
| CN104737638A (en) | Garden shovel capable of measuring humidity | |
| CN209591060U (en) | A kind of turning machine accident warning device | |
| CN204255533U (en) | The digital pressure gauge of a kind of combining wireless and wire transmission | |
| CN205449941U (en) | Long -range air quality inspection system | |
| CN202975760U (en) | Wireless agriculture-environment monitoring device | |
| CN205453642U (en) | Based on MCU control power amplifier offset voltage device | |
| CN205485671U (en) | Inside temperature control system of computer lab | |
| CN205300783U (en) | Circuit breaker temperature monitoring system based on zigBee technique | |
| CN204807984U (en) | 485 comprehensive detecting system of communication | |
| CN204142281U (en) | A kind of soil moisture humidity detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |