CN101418982A - Application of mixed gas sensor in air conditioner - Google Patents
Application of mixed gas sensor in air conditioner Download PDFInfo
- Publication number
- CN101418982A CN101418982A CNA2007101762534A CN200710176253A CN101418982A CN 101418982 A CN101418982 A CN 101418982A CN A2007101762534 A CNA2007101762534 A CN A2007101762534A CN 200710176253 A CN200710176253 A CN 200710176253A CN 101418982 A CN101418982 A CN 101418982A
- Authority
- CN
- China
- Prior art keywords
- air
- gas sensor
- peripheral circuit
- conditioning
- mixed gas
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention relates to application of hybrid gas sensor to an air conditioner. The hybrid gas sensor combined with a peripheral circuit module is placed nearby an air intake of the air conditioner; the hybrid gas sensor detects quality of air and outputs corresponding resistance to the peripheral circuit; a variable resistor reflecting air quality in the peripheral circuit is connected with an A/D sampling circuit; the A/D sampling circuit transmits collected analog voltage signals to a control chip through an A/D sampling port; after the control chip converts the analog voltage signals into digital signals, the control chip judges grade of the air quality and outputs the grade to a display screen of the air conditioner; and when the air quality declines to a certain grade, a buzzer is started to send out a sound to alarm. The hybrid gas sensor is used for replacing heavy specialized detection equipment to detect the air quality, so that analysis of the air quality can be widely applied to daily life; and display and alarming functions of the hybrid gas sensor are combined to greatly reduce probability of harmful gas injury, thereby improving life quality of people.
Description
Technical field
The present invention relates to the application of sensor, be specifically related to the application of mixed gas sensor in air-conditioning.
Background technology
Raising along with living standards of the people, people more and more pay attention to the quality of living, but high speed development along with industry, pernicious gas, various exhaust gas discharging such as vehicle exhaust, the pollution that also has finishing to bring, severe contamination air, bring more and more not convenient to daily life, people also begin to pay attention to the air quality problems of own living space, IAQ problem particularly, and increasing people has selected to carry out indoor air environment and has detected, and buy various harmful gas removing devices, both spent the plenty of time, wasted mint of money again, lost more than gain.
What use in the life now generally is the formaldehyde removing machine of specialty, has a large amount of formaldehyde in the inside, newly-decorated house, need remove, and As time goes on will lose necessity of use gradually till that time, has invisiblely caused waste; And this gas detects and removing all is a pure gas, can not detect and remove most of pernicious gas, such as harmful gases such as coal gas, carbon monoxide, ethanol, this machine even can not detect, so in most of the cases, it is that the gas in space, own place is harmful and be not only to be confined to certain insalubrious gas that people need most what know.
Air-conditioning is called the space air regulator again, as the term suggests be exactly a kind of machine of regulating air in the space, but the function of air-conditioning now on the market only is confined to regulate temperature in the space, and can not detect the quality of air in the space.
Summary of the invention
The purpose of this invention is to provide the method that a kind of mixed type device gas sensor is used in air-conditioning, under the prerequisite that does not change any outward appearance of air-conditioning, mode with very low cost realizes the application of mixed gas sensor in air-conditioning, can detect airborne formaldehyde (mainly being the pollution that finishing brings), ethanol (taste of the fume of the generation of drinking), carbon monoxide (the gas of imperfect combustion generation, the gas of the imperfect combustion generation of coal of the usefulness of warming oneself winter, the gas that smoking produces etc.), methane (main component of natural gas), (the charcoal completing combustion of the carbon dioxide of high concentration, and the people breathes the gas produced) etc. most of pernicious gases, and provide by display screen and buzzer and to show and warning function; When air quality dropped to some ranks, the buzzer startup was sent sound and is reported to the police.So by the present invention can the implementation space in the function of Detection of Air Quality.
For achieving the above object, the present invention is by the following technical solutions:
The application of mixed gas sensor in air-conditioning, with described hybrid gas sensor and peripheral circuit is that one places near the air inlet of air-conditioning, described hybrid gas sensor detects the quality of air and exports corresponding resistance to peripheral circuit, detects air quality by described peripheral circuit.
The structure of described peripheral circuit is that the output variable resistor of described hybrid gas sensor is connected with sampling resistor and formed the loop with power supply, one end of described sampling resistor connects the A/D sample port of control chip, and described control chip is gathered on the sampling resistor over the ground analog voltage signal by the A/D sample port.
Power supply in the described peripheral circuit can be by external power supply power supply or by the electrochemical capacitor power supply, and electrochemical capacitor prevents that mixed gas sensor from because of the interference in the external world causes the instantaneous change of output voltage, playing the effect of burning voltage.
Be connected with current-limiting resistance between the A/D sample port of sampling resistor and control chip in the described peripheral circuit, the electric current that prevents to import chip is excessive, causes the damage of chip.
An end of A/D sample port and sampling resistor ground connection is connected with electric capacity in the described peripheral circuit, and electric capacity mainly strobes, and prevents that strong interfering signal from entering into chip by this circuit, makes instantaneous sampling inaccurate.
The resistance of sampling resistor is complementary for variable-resistance mixed gas sensor resistance with equivalence in the described peripheral circuit.
The method that is detected air quality by described peripheral circuit may further comprise the steps:
S1: described hybrid gas sensor detects the concentration of pernicious gas in the air, exports the corresponding resistance of variable resistor in the described peripheral circuit;
S2: in the described peripheral circuit with sampling resistor that variable resistor is connected on voltage-to-ground corresponding the variation taken place, its magnitude of voltage outputs to the A/D sample port of control chip by current-limiting resistance;
S3: described control chip converts the analog voltage signal over the ground on the sampling resistor to data signal, obtains the air quality grade;
S4: described control chip shows the display screen that the air quality grade outputs to air-conditioner, if air quality surpasses limit value, control chip control buzzer sends audible alarm.
Detect by described peripheral circuit in the method for air quality, at step S1, the proportional or inverse relation of the concentration of pernicious gas in variable-resistance resistance and the air.
Detected by described peripheral circuit in the method for air quality, at step S3, the method that obtains the air quality grade may further comprise the steps:
S1: utilize the Standard resistance range that the concentration of pernicious gas in variable-resistance resistance and the air is proportional or inverse relation is set, get on the sampling resistor range of voltage values of aanalogvoltage over the ground by sampling resistor and variable-resistance series relationship;
S2: obtain the number range of data signal by the transformational relation of analog voltage signal and data signal, described number range is divided several grades, number range of each level setting;
S3: during operation of air conditioner, the data signal that the control chip real-time judge is obtained by harmful gas concentration is exported corresponding grade point in which number range of several grades of described division.
The present invention places hybrid gas sensor near the air inlet of air-conditioning in conjunction with its peripheral circuit module, can show by the display screen that passes through that the air quality in space is real-time, and provide demonstration and warning function by display screen and buzzer, when air quality drops to some ranks, the buzzer startup is sent sound and is reported to the police, so by the present invention can make things convenient for, Detection of Air Quality in the implementation space cheaply, improve people's quality of life.
Description of drawings
Fig. 1 is the peripheral circuit diagram of the hybrid gas sensor of the application of mixed gas sensor of the present invention in air-conditioning.
The specific embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
The application of mixed gas sensor in air-conditioning, among the present invention described hybrid gas sensor is placed near the air inlet of air-conditioning in conjunction with its peripheral circuit module, mixed gas sensor is by detecting the concentration of pernicious gas in the air, the corresponding resistance of output variable resistor R1 is to the A/D sample circuit, analog voltage signal is sent to the A/D sample port of chip, control chip converts analog voltage signal to data signal, realizes the detection of air conditioner air quality.
Be illustrated in figure 1 as the peripheral circuit diagram of the hybrid gas sensor of the application of mixed gas sensor of the present invention in air-conditioning, react the variable resistor R1 polyphone sampling resistor R3 and the power supply of harmful gas concentration in the air in the circuit and form the loop, described power supply can directly be powered or be powered by electrochemical capacitor by external power supply, in the present embodiment, be to power to mixed gas sensor with normal voltage+5V; E1 is the electrochemical capacitor (technical parameter of this electric capacity can be done suitable modification) that a technical parameter is 4.7uf/16V, the effect of this electric capacity mainly is the 5V voltage that standard is provided for mixed gas sensor, prevent that mixed gas sensor from because of the interference in the external world causes the instantaneous change of output voltage, playing the effect of burning voltage; The end of described sampling resistor R3 connects the A/D sample port of control chip by current-limiting resistance R2, described control chip converts over the ground analog signal voltage signal on the sampling resistor R3 to data signal, and an end of A/D sample port and sampling resistor R3 ground connection is connected with capacitor C 1.
R1 is exactly a resistance of representing mixed gas sensor in the present embodiment A/D sample circuit, because the resistance of mixed gas sensor is along with the change of air quality changes, so simply mixed gas sensor is represented with resistance R1, is changed between the 100K along with the excursion of its resistance of change of harmful gas concentration is approximately 10K; R2 is a conventional, electric-resistance, and technical parameter is 1K/5% (this technical parameter can be made appropriate change), and R2 mainly act as metering function in this circuit, and the electric current that prevents to import chip is excessive, causes the damage of chip; R3 is a sampling resistor, the voltage signal that chip collected is exactly this resistance voltage swing over the ground, so require the precision height very of this resistance, be generally 1% precision (precision is big more certainly makes an appointment), according to the size that sensor resistance changes, suitably select the size of this resistance, be typically chosen in 40K between the 50K, the size of this resistance is to select according to sensor, so can change along with sensor; C1 is an electric capacity (patch capacitor and a magnetic sheet electric capacity all can), and technical parameter is 103/16V (parameter can be done suitable adjustment), mainly strobes, and prevents that strong interfering signal from entering into chip by this circuit, makes instantaneous sampling inaccurate.
Detect the method for air quality below in conjunction with this embodiment of description of drawings:
At first utilize the Standard resistance range that concentration is proportional or inverse relation is set of pernicious gas in the resistance of variable resistor R1 and the air, get on the sampling resistor R3 range of voltage values of aanalogvoltage over the ground by the series relationship of sampling resistor R3 and variable resistor R1; Obtain the number range of data signal by the transformational relation of analog voltage signal and data signal, described number range is divided several grades, number range of each level setting;
After this system brings into operation, mixed gas sensor is by detecting content of harmful gas in the air, its resistance can change, when supposing that pernicious gas reaches a certain concentration, this moment, the resistance of mixed gas sensor was R1, according to voltage law, the voltage that can arrive the chip pin is u=5V* (R3/ (R3+R1)) so, because the accuracy of the precision different acquisition of chip has very big deviation; Here be sampled as the example explanation with 8 A/D: when the voltage of chip A/D sample port is u, the AD value that chip collects should be 256*u/5, so to convert data signal to by chip be a certain numerical value between 1 to 256 to the analog voltage signal that collects of chip in theory, the grade that shows air quality then by the judgement of control program, such as: the AD value is below 100, and it is excellent being defined as air quality; The AD value is defined as air quality for good between 100 to 200; The AD value is defined as air quality for poor between 300 to 400; The AD value is between 400 to 500, and it is very poor being defined as air quality; Certainly can arbitrarily define in the framework that is divided in national standard of grade; Can demonstrate the credit rating of current air or demonstrate the component content of current air quality pernicious gas by display screen then.If surpass limit value, buzzer will be realized warning function.
The present invention adopts the mixed type gas sensor, rather than the sensor of certain single gas, more can satisfy the daily life demand, can detect the most pernicious gases in the daily life, such as formaldehyde (mainly being the pollution that finishing brings), ethanol (taste of the fume of the generation of drinking), carbon monoxide (the gas of imperfect combustion generation, the gas of the imperfect combustion generation of coal of the usefulness of warming oneself winter, the gas that smoking produces etc.), methane (main component of natural gas), carbon dioxide (charcoal completing combustion, and the people breathes the gas that is produced), and cost is extremely low, no longer adopt heavy professional checkout equipment, and be applied in the air-conditioning, make the air quality analysis can be widely applied in the daily life, to significantly reduce the occurrence probability of pernicious gas injury in conjunction with its demonstration and warning function, thereby improve people's quality of life.
With reference to accompanying drawing embodiments of the invention are disclosed below.The present invention is not restricted to previous described embodiment, not breaking away from possible multiple change and the modification that the scope of the invention is carried out previous embodiment, still belongs to invention which is intended to be protected.
Claims (9)
1, the application of mixed gas sensor in air-conditioning, it is characterized in that with described hybrid gas sensor and peripheral circuit being that one places near the air inlet of air-conditioning, described hybrid gas sensor detects the quality of air and exports corresponding resistance to peripheral circuit, detects air quality by described peripheral circuit.
2, the application of mixed gas sensor as claimed in claim 1 in air-conditioning, the structure that it is characterized in that described peripheral circuit is that the output variable resistor (R1) of described hybrid gas sensor is connected with sampling resistor (R3) and formed the loop with power supply, one end of described sampling resistor (R3) connects the A/D sample port of control chip, and described control chip is gathered on the sampling resistor (R3) over the ground analog voltage signal by the A/D sample port.
3, the application of mixed gas sensor as claimed in claim 2 in air-conditioning is characterized in that the power supply in the described peripheral circuit can be powered by the external power supply power supply or by electrochemical capacitor (E1).
4, the application of mixed gas sensor as claimed in claim 3 in air-conditioning is characterized in that being connected with current-limiting resistance (R2) between the A/D sample port of sampling resistor in the described peripheral circuit (R3) and control chip.
5, the application of mixed gas sensor as claimed in claim 4 in air-conditioning is characterized in that an end of A/D sample port and sampling resistor (R3) ground connection is connected with electric capacity (C1) in the described peripheral circuit.
6, mixed gas sensor as claimed in claim 5 is used in air-conditioning, it is characterized in that the resistance of sampling resistor in the described peripheral circuit (R3) and equivalence are complementary for the mixed gas sensor resistance of variable resistor (R1).
7, the application of mixed gas sensor as claimed in claim 6 in air-conditioning is characterized in that the method that is detected air quality by described peripheral circuit may further comprise the steps:
S1: described hybrid gas sensor detects the concentration of pernicious gas in the air, exports the corresponding resistance of variable resistor in the described peripheral circuit (R1);
S2: the corresponding variation takes place in the voltage-to-ground on the sampling resistor (R3) of connecting with variable resistor (R1) in the described peripheral circuit, and its magnitude of voltage outputs to the A/D sample port of control chip by current-limiting resistance (R2);
S3: described control chip converts the analog voltage signal over the ground on the sampling resistor (R3) to data signal, obtains the air quality grade;
S4: described control chip shows the display screen that the air quality grade outputs to air-conditioner, if air quality surpasses limit value, control chip control buzzer sends audible alarm.
8, the application of mixed gas sensor as claimed in claim 7 in air-conditioning, it is characterized in that detecting in the method for air quality by described peripheral circuit, at step S1, the proportional or inverse relation of concentration of pernicious gas in the resistance of variable resistor (R1) and the air.
9, the application of mixed gas sensor as claimed in claim 7 in air-conditioning is characterized in that being detected in the method for air quality by described peripheral circuit, and at step S3, the method that obtains the air quality grade may further comprise the steps:
S1: utilize the proportional or inverse relation of the concentration of pernicious gas in the resistance of variable resistor (R1) and the air to set the Standard resistance range of (R1), get on the sampling resistor (R3) range of voltage values of aanalogvoltage over the ground by the series relationship of sampling resistor (R3) and variable resistor (R1);
S2: obtain the number range of data signal by the transformational relation of analog voltage signal and data signal, described number range is divided several grades, number range of each level setting;
S3: during operation of air conditioner, the data signal that the control chip real-time judge is obtained by harmful gas concentration is exported corresponding grade point in which number range of several grades of described division.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101762534A CN101418982B (en) | 2007-10-23 | 2007-10-23 | Application of mixed gas sensor in air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101762534A CN101418982B (en) | 2007-10-23 | 2007-10-23 | Application of mixed gas sensor in air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418982A true CN101418982A (en) | 2009-04-29 |
| CN101418982B CN101418982B (en) | 2010-09-22 |
Family
ID=40629895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101762534A Active CN101418982B (en) | 2007-10-23 | 2007-10-23 | Application of mixed gas sensor in air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101418982B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759387A (en) * | 2014-01-29 | 2014-04-30 | 天津大学 | Air conditioner unit/device controller capable of controlling quality of indoor air, and system |
| CN106352431A (en) * | 2016-10-13 | 2017-01-25 | 青岛海信日立空调系统有限公司 | Air conditioner indoor unit and control method and air conditioning system thereof |
| CN106440584A (en) * | 2016-11-23 | 2017-02-22 | 青岛海信日立空调系统有限公司 | Refrigerant leakage detection device and method and air conditioner |
| CN107966527A (en) * | 2017-11-15 | 2018-04-27 | 卧龙电气集团股份有限公司 | A kind of air quality sensor for air circulation system |
| CN109862656A (en) * | 2018-10-29 | 2019-06-07 | 宁波耀泰电器有限公司 | A kind of light modulation shading process and its circuit |
| CN114166912A (en) * | 2021-11-17 | 2022-03-11 | 鞍钢联众(广州)不锈钢有限公司 | Setting method of NOx analysis gas detector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH067897B2 (en) * | 1986-10-20 | 1994-02-02 | 三洋電機株式会社 | Air purifier controller |
| CN2663854Y (en) * | 2003-06-30 | 2004-12-15 | 海尔集团公司 | Gas leakage alarming air conditioner |
| KR100595214B1 (en) * | 2004-05-21 | 2006-07-03 | 엘지전자 주식회사 | Apparatus and Method for Controlling Air Cleaner in air-conditioning system |
-
2007
- 2007-10-23 CN CN2007101762534A patent/CN101418982B/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103759387A (en) * | 2014-01-29 | 2014-04-30 | 天津大学 | Air conditioner unit/device controller capable of controlling quality of indoor air, and system |
| CN103759387B (en) * | 2014-01-29 | 2016-06-08 | 天津大学 | A kind of can control indoor air quality air conditioning unit/device controller and system |
| CN106352431A (en) * | 2016-10-13 | 2017-01-25 | 青岛海信日立空调系统有限公司 | Air conditioner indoor unit and control method and air conditioning system thereof |
| CN106440584A (en) * | 2016-11-23 | 2017-02-22 | 青岛海信日立空调系统有限公司 | Refrigerant leakage detection device and method and air conditioner |
| CN106440584B (en) * | 2016-11-23 | 2018-10-19 | 青岛海信日立空调系统有限公司 | A kind of detection device of secondary refrigerant leakage, method and air-conditioning |
| CN107966527A (en) * | 2017-11-15 | 2018-04-27 | 卧龙电气集团股份有限公司 | A kind of air quality sensor for air circulation system |
| CN109862656A (en) * | 2018-10-29 | 2019-06-07 | 宁波耀泰电器有限公司 | A kind of light modulation shading process and its circuit |
| CN114166912A (en) * | 2021-11-17 | 2022-03-11 | 鞍钢联众(广州)不锈钢有限公司 | Setting method of NOx analysis gas detector |
| CN114166912B (en) * | 2021-11-17 | 2024-02-27 | 鞍钢联众(广州)不锈钢有限公司 | Setting method of NOx analysis gas detector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418982B (en) | 2010-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101418982B (en) | Application of mixed gas sensor in air conditioner | |
| CN104700506B (en) | Safety cut-off type remote-control intelligent mass flow gas meter, flow meter and its management system | |
| CN108168022A (en) | intelligent air purifying system | |
| CN106288173A (en) | A kind of intelligent control method of new blower fan | |
| CN102213604A (en) | Indoor environment real-time monitor and sensing transmission system thereof | |
| CN2731609Y (en) | Indoor air quality monitor | |
| CN109827617A (en) | A kind of Intelligent environment monitoring system Internet-based | |
| CN202974989U (en) | Oil smoke monitoring system | |
| CN203642372U (en) | Digital display air purifier | |
| CN202793696U (en) | GPRS intelligent detection terminal based on infrared gas sensor | |
| CN208206570U (en) | A kind of indoor multi-functional air sampling apparatus | |
| CN206095878U (en) | PM2.5 detection device | |
| CN106770532B (en) | A kind of forecasting of Gas Concentration device and gas concentration real-time detection and forecasting system | |
| CN100444208C (en) | Alarm with data recording device for detecting combustible gas | |
| CN210347600U (en) | Environmental air quality monitoring device | |
| CN105572002A (en) | PM2.5 dust concentration detection method | |
| CN101425216B (en) | Method for collocating combustible gas detecting alarm with data recording function | |
| CN207851571U (en) | A kind of All-in-One sensor device | |
| CN108760982A (en) | A kind of portable air mass detecting instrument | |
| CN202869612U (en) | Detecting device for gas meter with temperature compensation function | |
| CN201892659U (en) | Infrared methane alarm instrument | |
| CN204359653U (en) | The comprehensive family measuring instrument of a kind of PM2.5 | |
| CN209460098U (en) | A kind of air quality monitor and system | |
| Wang et al. | Design of high precision PM2. 5 detector based on laser sensor | |
| CN215525616U (en) | Multifunctional measuring system for total carbon emission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |