CN2475032Y - Indoor air quality monitor - Google Patents
Indoor air quality monitor Download PDFInfo
- Publication number
- CN2475032Y CN2475032Y CN 01200236 CN01200236U CN2475032Y CN 2475032 Y CN2475032 Y CN 2475032Y CN 01200236 CN01200236 CN 01200236 CN 01200236 U CN01200236 U CN 01200236U CN 2475032 Y CN2475032 Y CN 2475032Y
- Authority
- CN
- China
- Prior art keywords
- chip microcomputer
- air quality
- sensor
- connect
- operational amplifier
- 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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Abstract
The utility model relates to a device for detecting indoor oxygen content, belonging to air measuring device. The air quality monitor mainly comprises a casing, a sensing device (U <1>) and a control device. The casing is provided with a display screen, a keyboard and a warning lamp. The sensing device (U <1>) is a carbon dioxide sensing device which is connected with the control device. A control circuit comprises an operational amplifier (U <2>), an A/D converter (U <3>), a singlechip (U <4>), an alarm (U <6>), and a display modular (U <7>), wherein the singlechip (U <4>) controls every part of the circuit to operate. The device of the utility model has the advantages of low cost, high measurement accuracy, simple and reliable structure, convenient utilization and long service life.
Description
The utility model relates to a kind of device of monitoring indoor oxygen content, belongs to air surveying instrument class.
Oxygen is human life activity's primary need, if people's life under anoxic environment, work for a long time then dizziness headache can occur, sensation of oppression over the chest with shortness of breath is losing one's memory, lassitude, symptoms such as tired difficult dormancy.When serious; then can cause organ dysfunctions such as the heart, brain, lung to go down, immunity degradation, but in modern handle official bussiness, living environment; the room generally is in air-tight state; indoor air flows is poor, so people are in work, in the life process, and indoor oxygen content reduces; gas concentration lwevel raises; in order to protect people's physical and mental health, hope can be monitored room air, with the reminds people ventilation.At present, the monitor that oxygen content in the air is measured mainly contains: Thermomagnetic type, the spectral analysis formula, the zirconia analysis mode and galvanic cell.The oxygen monitoring body of Thermomagnetic type is long-pending huge, generally only is used for industrial oxygen determination and laboratory data analysis; Though the spectral analysis monitor is oxygen determination concentration accurately, its cost is very high, can't widespread use; The oxygen determination of zirconium doxide oxygen analyzer is highly sensitive, good stability, but it need make analytical instrument complicated with a heating arrangement when analyzing gas at normal temperature, if the temperature instability need add the temperature correction.Though the galvanic electricity pool structure is simple, cost is low, essential often calibration, and the life-span is shorter, generally has only one-year age.
The purpose of this utility model is a kind of IAQ (indoor air quality) monitor of design, and it is rational in infrastructure, measuring accuracy height, long service life.
The designed IAQ (indoor air quality) monitor of the utility model is mainly by housing, sensor (U
1) and the control device formation, have display screen, keyboard and warning lamp on the housing, sensor (U
1) be carbon dioxide sensor, sensor (U
1) be connected with control device, control device is a control circuit board, its control circuit is by operational amplifier (U
2), A/D converter (U
3), single-chip microcomputer (U
4), alarm (U
6) and display module (U
7) constitute sensor (U
1) and operational amplifier (U
2) connect operational amplifier (U
2) and A/D converter (U
3) connect operational amplifier (U
2) again with single-chip microcomputer (U
4) connect alarm (U
6) and display module (U
7) respectively with single-chip microcomputer (U
4) connect single-chip microcomputer (U
4) each several part work in the control circuit.
Control device in the designed IAQ (indoor air quality) monitor of the utility model can also be connected the single-chip microcomputer (U in the control circuit with air regenerating device
4) with air regenerating device in driving circuit (U
5) connect.
The designed IAQ (indoor air quality) monitor of the utility model utilizes CO in the Control Room
2Content judge the quality of room air, this is because in airtight relatively room (as often closing the door, close the air-conditioned room of window), the air in room is relatively poor with extraneous circulation, room air is in air-tight state substantially, when human body during in indoor activity, a large amount of oxygen of consumption all are converted into CO basically
2Gas, like this, oxygen content reduces gradually in the room, CO
2Concentration increases, the air quality variation in the room.Therefore, can be by CO in the measuring chamber
2Content is monitored the quality of space air quality indirectly, works as CO
2During excessive concentration, give the alarm, the prompting space air is second-rate, needs ventilation.
The principle of work of the IAQ (indoor air quality) monitor that the utility model is designed is:
Sensor (U
1) detect CO in the room
2Content, export a voltage signal, through operational amplifier (U
2) after signal amplifies, by A/D converter (U
3) carry out mould/number conversion, be that digital signal is delivered to single-chip microcomputer (U with analog signal conversion
4) in, through after the data processing, obtain CO in the room
2Content.When measured value greater than in advance at single-chip microcomputer (U
4) the middle room CO that sets
2Single-chip microcomputer (U is prescribed a time limit in going up of content
4) provide warning trigger pip, alarm (U
6) warning that is triggered, the CO in the warning room
2Too high levels, if the people lives under this kind environment for a long time, then can work the mischief to person health, if be connected with parallel operation equipment, drive parallel operation equipment (U simultaneously
5) start working, be the room ventilation.Keyboard, display module (U
7) demonstration of various information in the equipment of main realization system and the instrument course of work in system.
The advantage of the IAQ (indoor air quality) monitor that the utility model is designed is:
1. cost is low, the measuring accuracy height;
2. simple and reliable for structure, needn't often revise, easy to use, and long service life.
The designed IAQ (indoor air quality) monitor of the utility model is mainly used in the indoor gas quality monitoring of relative closure, also can be used for others.
Fig. 1 is the structural representation of the designed IAQ (indoor air quality) monitor of the utility model.
Fig. 2 is the circuit diagram of the designed IAQ (indoor air quality) monitor of the utility model.
In conjunction with specific embodiments the structure and the embodiment of the designed IAQ (indoor air quality) monitor of the utility model is described further with reference to the accompanying drawings below.
Embodiment
IAQ (indoor air quality) monitor as shown in Figure 1 is mainly by housing 1, sensor U
1And control device constitutes sensor U
1Reach control device and be installed in the housing 1, have display screen 2 on the panel of housing 1, be used for the keyboard 3 and the warning lamp 4 of digital processing, have blow vent 5 on the housing 1, sensor U
1Be installed in blow vent 5 places in the housing 1, sensor U
1Be connected with control device, control device is a control circuit board, its control circuit as shown in Figure 2, by operational amplifier U
2, A/D converter U
3, single-chip microcomputer U
4, alarm U
8And display module U
7Connect and compose sensor U
1With operational amplifier U
2Connect, operational amplifier is by A/D converter and single-chip microcomputer U
4Connect single-chip microcomputer U
4Control signal is gathered and is handled display module U
7And alarm U
6With single-chip microcomputer U
4Connect the driving circuit U in the air regenerating device
5Also with single-chip microcomputer U
4Connect.Sensor U wherein
1Detect CO in the indoor gas
2Content, output correspondent voltage signal is through operational amplifier U
2Transfer to A/D converter U after the amplification
3The place carries out mould/number conversion, then with digital signal transfers to single-chip microcomputer U
4In handle, and set in advance at single-chip microcomputer U
4In higher limit compare, comparative result is delivered to display module U
7Show.If be higher than single-chip microcomputer U
4In higher limit, single-chip microcomputer U then
4Send the warning trigger pip, drive alarm U
6Report to the police, drive the driving circuit U in the air regenerating device simultaneously
5, make air regenerating device start work automatically.Display screen 2 on housing 1 is by display module U
7Control shows, and keyboard 3 and single-chip microcomputer U
4And display module U
7Connect, the setting of realization system reaches the demonstration of various information in observation process.
Find out that by above-mentioned this IAQ (indoor air quality) monitor adopts CO
2Sensor, cost reduces greatly, and this apparatus structure is oversimplified, and volume is little, long service life, monitoring is convenient.This IAQ (indoor air quality) monitor can use separately, also can ventilate with other, and air regenerating device is used in combination.
Claims (2)
1. an IAQ (indoor air quality) monitor is characterized in that: mainly by housing, sensor (U
1) and the control device formation, have display screen, keyboard and warning lamp on the housing, sensor (U
1) be carbon dioxide sensor, sensor (U
1) be connected with control device, control device is a control circuit board, its control circuit is by operational amplifier (U
2), A/D converter (U
3), single-chip microcomputer (U
4), alarm (U
6) and display module (U
7) constitute sensor (U
1) and operational amplifier (U
2) connect operational amplifier (U
2) and A/D converter (U
3) connect operational amplifier (U
2) again with single-chip microcomputer (U
4) connect alarm (U
6) and display module (U
7) respectively with single-chip microcomputer (U
4) connect single-chip microcomputer (U
4) each several part work in the control circuit.
2. IAQ (indoor air quality) monitor according to claim 1, its feature also is: control device can also be connected with air regenerating device, the single-chip microcomputer (U in the control circuit
4) with air regenerating device in driving circuit (U
5) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200236 CN2475032Y (en) | 2001-02-16 | 2001-02-16 | Indoor air quality monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01200236 CN2475032Y (en) | 2001-02-16 | 2001-02-16 | Indoor air quality monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2475032Y true CN2475032Y (en) | 2002-01-30 |
Family
ID=33622552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01200236 Expired - Fee Related CN2475032Y (en) | 2001-02-16 | 2001-02-16 | Indoor air quality monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2475032Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100455274C (en) * | 2007-08-16 | 2009-01-28 | 首都医科大学附属北京朝阳医院 | Normal pressure low oxygen toxicity contaminated system |
| CN101300533B (en) * | 2005-08-30 | 2010-11-10 | 西门子工业公司 | Application of microsystems for real time ieq control |
| CN102072923A (en) * | 2010-08-10 | 2011-05-25 | 深圳市德维莱科技有限公司 | System and method for displaying air quality |
| CN102360002A (en) * | 2011-09-26 | 2012-02-22 | 姜召才 | Simple air component detector |
| CN102375005A (en) * | 2010-08-24 | 2012-03-14 | 无锡爱睿芯电子有限公司 | Sensor module |
| CN102520680A (en) * | 2011-11-07 | 2012-06-27 | 天津市电视技术研究所 | Intelligent oxygen supply system |
| CN102636541A (en) * | 2012-03-19 | 2012-08-15 | 深圳天派门窗科技有限公司 | Oxygen concentration monitoring and controlling device |
| CN102721789A (en) * | 2012-05-25 | 2012-10-10 | 浙江理工大学 | Air quality detection ball |
| CN103728417A (en) * | 2013-12-18 | 2014-04-16 | 北京恒泰实达科技股份有限公司 | Air quality monitoring device capable of being arranged and used in match with 86 box |
| CN104459023A (en) * | 2013-09-13 | 2015-03-25 | 昆山市玉山镇仕龙设计工作室 | Carbon dioxide standard-exceeding alarm |
-
2001
- 2001-02-16 CN CN 01200236 patent/CN2475032Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101300533B (en) * | 2005-08-30 | 2010-11-10 | 西门子工业公司 | Application of microsystems for real time ieq control |
| CN100455274C (en) * | 2007-08-16 | 2009-01-28 | 首都医科大学附属北京朝阳医院 | Normal pressure low oxygen toxicity contaminated system |
| CN102072923A (en) * | 2010-08-10 | 2011-05-25 | 深圳市德维莱科技有限公司 | System and method for displaying air quality |
| CN102375005A (en) * | 2010-08-24 | 2012-03-14 | 无锡爱睿芯电子有限公司 | Sensor module |
| CN102360002A (en) * | 2011-09-26 | 2012-02-22 | 姜召才 | Simple air component detector |
| CN102520680A (en) * | 2011-11-07 | 2012-06-27 | 天津市电视技术研究所 | Intelligent oxygen supply system |
| CN102636541A (en) * | 2012-03-19 | 2012-08-15 | 深圳天派门窗科技有限公司 | Oxygen concentration monitoring and controlling device |
| CN102636541B (en) * | 2012-03-19 | 2015-10-21 | 深圳派成铝业科技有限公司 | A kind of oxygen concentration monitor controller |
| CN102721789A (en) * | 2012-05-25 | 2012-10-10 | 浙江理工大学 | Air quality detection ball |
| CN104459023A (en) * | 2013-09-13 | 2015-03-25 | 昆山市玉山镇仕龙设计工作室 | Carbon dioxide standard-exceeding alarm |
| CN103728417A (en) * | 2013-12-18 | 2014-04-16 | 北京恒泰实达科技股份有限公司 | Air quality monitoring device capable of being arranged and used in match with 86 box |
| CN103728417B (en) * | 2013-12-18 | 2016-07-06 | 北京恒泰实达科技股份有限公司 | A kind of can coordinate, with 86 boxes, the atmosphere quality monitoring device installed and used |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: BEIJING HENGJI WEIYE INVESTMENT DEVELOPMENT CO., Free format text: FORMER OWNER: HUIJIATE ELECTRICAL EQUIPMENT CO., LTD., BEIJING Effective date: 20060331 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20060331 Address after: 100083, No. 18, Zhongguancun East Road, Beijing, Haidian District, International Building, block C, 10 floor Patentee after: Hengjiweiye Investment Development Co., Ltd., Beijing Address before: 100088, room 2, 604, Xinjie Avenue, Beijing Patentee before: Beijing Huijiate Electric Equipment Co., Ltd. |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |