CN202101984U - Air quality monitor - Google Patents
Air quality monitor Download PDFInfo
- Publication number
- CN202101984U CN202101984U CN2011202132882U CN201120213288U CN202101984U CN 202101984 U CN202101984 U CN 202101984U CN 2011202132882 U CN2011202132882 U CN 2011202132882U CN 201120213288 U CN201120213288 U CN 201120213288U CN 202101984 U CN202101984 U CN 202101984U
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- CN
- China
- Prior art keywords
- circuit
- air quality
- display module
- casing
- air
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Air Conditioning Control Device (AREA)
Abstract
The utility model relates to an air quality monitor, which comprises a casing and a control circuit, wherein the control circuit is arranged inside the casing. The air quality monitor is technically characterized in that an LCD (Liquid Crystal Display), buttons, a TVOC (Total Volatile Organic Compounds) sensor and a wire connecting terminal are arranged on the casing; the control circuit in the casing comprises a singlechip, a keying circuit, a display module, a TVOC sensor circuit and an driver executive circuit; the singlechip is respectively connected with the keying circuit, the display module, the TVOC sensor circuit and the driver executive circuit through an I/O (Input/Output) interface; the keying circuit is also connected with the buttons on the casing; the display module is also connected with the LCD; and the driver executive circuit is also connected with the wire connecting terminal. The air quality monitor with reasonable design adopts the TVOC sensor to detect toxic or harmful gas in a real-time manner, drives an air cleaning facility to operate under the control of the singlechip, can detect the air quality effectively and purify the air in time, protects the physical health of people, and is characterized by speediness, accuracy and the like.
Description
Technical field
The utility model belongs to the control instrument field, especially a kind of air quality monitoring device.
Background technology
At present, because environmental pollution is serious day by day, in the air of office space, family, have some toxic and harmfuls (TVOC) through regular meeting, we possibly can't see or can't smell these toxic and harmfuls, but but can cause great injury to human body.Adopt conventional Detection of Air Quality method, need to accomplish through on-the-spot air sampling and laboratory physico-chemical analysis, its testing process is loaded down with trivial details, the cycle is long, is mainly used in statistics, analysis etc., can't realize monitoring the function of air cleaning facility operation.How the operation of airborne toxic and harmful of fast detecting and control air cleaning equipment is the problem that presses for solution at present.
Summary of the invention
The purpose of the utility model is to overcome the deficiency of prior art, provide a kind of can the airborne toxic and harmful of fast detecting and the air quality monitoring device of control air cleaning equipment operation.
The utility model solves its technical matters and takes following technical scheme to realize:
A kind of air quality monitoring device; Comprise housing and inner control circuit thereof; On housing, be provided with LCD display, button, TVOC sensor and connection terminal; Control circuit in the housing comprises single-chip microcomputer, key circuit, display module, TVOC sensor circuit and driving execution circuit, and single-chip microcomputer is connected with key circuit, display module, TVOC sensor circuit and driving execution circuit respectively through the I/O interface respectively, key circuit also with housing on button be connected; Display module also is connected with LCD display, and the driving execution circuit also is connected with connection terminal.
And described connection terminal is used to connect the air cleaning facility that uses the single speed blower fan, perhaps connects the air cleaning facility that uses three fast blower fans.
And described connection terminal with the connected mode of single speed blower fan is: two connection terminals of a side are connected AC power, and middle two connection terminals are connected with zero line side with the speed end of blower fan.
And described connection terminal with the connected mode of three fast blower fans is: two connection terminals of a side are connected AC power, and other four connection terminals are connected with zero line side with low speed end, middling speed end, the speed end of blower fan respectively.
The advantage and the good effect of the utility model are:
The utility model is reasonable in design; It adopts the TVOC sensor that toxic and harmful is detected in real time; And drive air cleaning equipment operation under Single-chip Controlling, realize effectively the detection of air quality is also in time purified, realize the automatic operation of monitoring air cleaning facility; Protect the healthy of people, had characteristics such as quick, accurate.
Description of drawings
Fig. 1 is the housing front view of the utility model;
Fig. 2 is the circuit block diagram of the utility model;
Fig. 3 is the utility model and a kind of synoptic diagram that is connected of air cleaning facility;
Fig. 4 is that the utility model is connected synoptic diagram with the another kind of air cleaning facility;
Fig. 5 is the constitutional diagram that the LCD display of the utility model shows.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is done further detailed description.
A kind of air quality monitoring device; As shown in Figure 1, comprise housing and inner control circuit thereof, be provided with LCD display 2, button 4 and TVOC sensor 3 in the front of housing 1; Be provided with the connection terminal 5 that is connected with air cleaning facility in the lower end of housing; Control circuit in the housing comprises single-chip microcomputer, key circuit, display module, TVOC sensor circuit and driving execution circuit, and single-chip microcomputer is connected with key circuit, display module, TVOC sensor circuit and driving execution circuit respectively through the I/O interface respectively, key circuit also with housing on button be connected; Display module also is connected with LCD display; The driving execution circuit also is connected with connection terminal, and the critical piece of TVOC sensor circuit is the TVOC sensor, judges the concentration of TVOC through the output resistance that reads the TVOC sensor.Connection terminal one has six; Can connect air cleaning facility with single speed blower fan and air cleaning facility with three fast blower fans according to switch setting; In single speed blower fan connected mode shown in Figure 3; Two connection terminals of one side connect AC power, and middle two connection terminals are connected with zero line side with the speed end of blower fan, in three fast blower fan connected modes shown in Figure 4; Two connection terminals of one side connect AC power, and other four connection terminals are connected with zero line side with low speed end, middling speed end, the speed end of blower fan respectively.
Button on the housing has four, and first button is used for switching on and shutting down or gets into function regularly is set, and regularly adopts the countdown mode, and watch-dog can be in the working time that is provided with of shutdown automatically to the back.Second button is used for switching manually and automatic operation mode.The the 3rd and four button is used for the goal-selling value and (is used for changing air VOC setting value when pressing respectively; Setting range is 0.1～99ppm), (two keys can lock set-up function above 5 seconds the locking setting value simultaneously; To prevent that maloperation from changing setting value; When lock-out state; LCD display will show
symbol) and function such as release (disappearing the expression latch-release at lock-out state simultaneously by two keys
symbol on lcd screen).
LCD display on the housing comprises two parts viewing area up and down; Wherein, Three zones, top are respectively applied for duty, air quality, the VOC concentration value of display monitor, and whole zone, bottom is used to show air quality trend, promptly shows nearest 10 hours air quality.
The principle of work of the utility model is: VOC concentration in the TVOC sensor air; And testing result reached in the single-chip microcomputer; Compare with preset value after the single-chip microcomputer analysis; When VOC concentration is greater than setting value in the air, then to start working through driving execution drives cleaning equipment, the lcd screen state shows.
It is emphasized that; The described embodiment of the utility model is illustrative; Rather than it is determinate; Therefore the utility model is not limited to the embodiment described in the embodiment, every by those skilled in the art according to other embodiments that the technical scheme of the utility model draws, belong to the scope of the utility model protection equally.
Claims (4)
1. air quality monitoring device; Comprise housing and inner control circuit thereof; It is characterized in that: on housing, be provided with LCD display, button, TVOC sensor and connection terminal; Control circuit in the housing comprises single-chip microcomputer, key circuit, display module, TVOC sensor circuit and driving execution circuit, and single-chip microcomputer is connected with key circuit, display module, TVOC sensor circuit and driving execution circuit respectively through the I/O interface respectively, key circuit also with housing on button be connected; Display module also is connected with LCD display, and the driving execution circuit also is connected with connection terminal.
2. air quality monitoring device according to claim 1 is characterized in that: described connection terminal is used to connect the air cleaning facility that uses the single speed blower fan, perhaps connects the air cleaning facility that uses three fast blower fans.
3. air quality monitoring device according to claim 1; It is characterized in that: described connection terminal with the connected mode of single speed blower fan is: two connection terminals of a side are connected AC power, and middle two connection terminals are connected with zero line side with the speed end of blower fan.
4. air quality monitoring device according to claim 1; It is characterized in that: described connection terminal with the connected mode of three fast blower fans is: two connection terminals of a side are connected AC power, and other four connection terminals are connected with zero line side with low speed end, middling speed end, the speed end of blower fan respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202132882U CN202101984U (en) | 2011-06-22 | 2011-06-22 | Air quality monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202132882U CN202101984U (en) | 2011-06-22 | 2011-06-22 | Air quality monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202101984U true CN202101984U (en) | 2012-01-04 |
Family
ID=45387989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202132882U Expired - Fee Related CN202101984U (en) | 2011-06-22 | 2011-06-22 | Air quality monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202101984U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940956A (en) * | 2013-01-23 | 2014-07-23 | 海尔集团公司 | Smell detection method, device and system |
| CN110388700A (en) * | 2019-07-26 | 2019-10-29 | 亿轶环境科技(上海)有限公司 | A kind of ceiling mounting type air disinfecting and purifying device |
-
2011
- 2011-06-22 CN CN2011202132882U patent/CN202101984U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940956A (en) * | 2013-01-23 | 2014-07-23 | 海尔集团公司 | Smell detection method, device and system |
| CN110388700A (en) * | 2019-07-26 | 2019-10-29 | 亿轶环境科技(上海)有限公司 | A kind of ceiling mounting type air disinfecting and purifying device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120104 Termination date: 20130622 |