CN102745173A - Car windshield fog-resisting system based on sensor technology - Google Patents
Car windshield fog-resisting system based on sensor technology Download PDFInfo
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- CN102745173A CN102745173A CN2012102572665A CN201210257266A CN102745173A CN 102745173 A CN102745173 A CN 102745173A CN 2012102572665 A CN2012102572665 A CN 2012102572665A CN 201210257266 A CN201210257266 A CN 201210257266A CN 102745173 A CN102745173 A CN 102745173A
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Abstract
The invention relates to a car windshield fog-resisting system based on sensor technology. The temperature of windshield of a cab and the humidity in a carriage can be measured, thus, a car air conditioning system and a driver can be intelligently informed in case fog is generated on the windshield, and the car windshield fog-resisting system can be controlled to start to automatically remove the fog. The system comprises parameter measurement and input, parameter control and fog-removing control, wherein under the parameter measurement input, a sensor is clung to the windshield of the car; a sensor for measuring the temperature of the windshield and a sensor for measuring the temperature and the humidity of the same point in the carriage are used for monitoring the three physical quantities which lead to the generation of fog on real time; under the parameter calculation, the data of the measured temperature of the windshield and the relative humidity and temperature of the same point in the carriage are transmitted to an air conditioning MCU (Microprogrammed Control Unit) system; and a central controller analyzes and implements comparison to the data; and under the fog-removing control, a fog-removing system is controlled to start to automatically remove the fog since the air conditioning MCU system determines that the fog is required to remove.
Description
Technical field
The invention belongs to the antifog technical field of automobile, be specifically related to a kind of windshield antifog system based on sensor technology.
Background technology
Along with China's rapid economic development, the sales volume of China's automobile in 2010 has broken through 1,000 ten thousand, but when the Domestic Automotive Industry high speed development brought convenience to people and be happy, hidden danger was also following.327209 of road traffic accidents took place in China altogether in 2007, caused 81649 people dead, and 380 442 people are injured; 1,200,000,000 yuan of direct property loss; Such road accident incidence is considerably beyond the average level of western developed country, and in the cause that superincumbent road accident takes place, what quite a few accident was arranged is because in winter or rainy day; Because Windshield fog occurs and causes driver's blurred vision unclear, thereby has caused road accident.Therefore Chinese scholars is more and more to the antifog research of Windshield with tissue.Though there are a lot of cars all to possess " demist retaining " button now, for the user, directly using this demist to keep off demist to appear to is a very simple thing; But in fact a lot of drivers do not know when automobile hazes; When need demist, and when do not need demist and can close the button of demist retaining, often users can be unsuitable the time; Have little time the function of deactivation demist; Or when automobile did not need demist, drivers also continued moving automotive air-conditioning system and carry out demist, have wasted the consumption of the energy greatly; At this time just need the automatic demister system of intelligence to help essentiality and the time that chaufeur is confirmed demist; Automatically demister system not merely is that life to the occupant has had a guarantee, and the consumption of having saved energy source of car, is playing indelible effect aspect the oil consumption saving.
Summary of the invention
The purpose of this invention is to provide a kind of windshield antifog system.
The technical scheme that realizes the object of the invention is: a kind of windshield antifog system based on sensor technology; Through measuring humidity in operator's compartment Windshield temperature and the compartment; Before Windshield hazes; Notify in advance automotive air-conditioning system and driver intelligently, the control demister system begins automatic demist, and this system comprises:
The physical quantitys such as relative temperature and temperature of same point in Windshield temperature that causing hazes takes place, the compartment have been monitored in parameter measurement input in real time;
Calculation of parameter, the data of same point relative humidity and temperature in the temperature of the Windshield that measures and the compartment are given air-conditioning MCU system, and central controller can be analyzed and compares data;
Demist control, after the judgement of air-conditioning MCU system need be carried out demist, the control demister system began automatic demist.
As further improvement of the present invention, sensor is close to above the Windshield of car, measures the temperature sensor of Windshield and the temperature and humidity sensor of measuring same point in the compartment, and monitoring in real time causes this three big physical quantity that hazes and take place.
As further improvement of the present invention, said calculation of parameter is carried out the following step:
(1) at first be to calculate the dew temperature in the compartment to the data of same point relative humidity and temperature in the compartment through a series of formula;
(2) judge through the temperature that compares dew temperature and Windshield whether Windshield hazes.
As further improvement of the present invention; Said step (2) is set earlier a safety factor Δ, when dew temperature near the temperature of Windshield the time, just is in high-risk fog-zone when Td+ Δ>=Tws Windshield; At this time demisting control system will be opened the beginning demist; When the temperature spread of dew temperature and Windshield arrived certain numerical value, just<Tws, demister system was closed when the Td+ Δ.
As further improvement of the present invention, said demister system is carried out the following step:
(1) when the relative humidity in the compartment is very high, keep good ventilation, make that malaria exchanges in the outer dry air of car and the compartment, thus the dew temperature in the relative humidity reduction compartment in the reduction compartment.
(2) directly the compartment Windshield is begun heating, make the temperature build-up of compartment Windshield, and exceed the dew temperature in the compartment, perhaps quicken
Flowing of Windshield front air, thus Windshield fwd relative humidity reduced.
(3) open the a/c system in the car and be arranged to outer circulation, compressor can be opened, and the relative humidity in compartment is reduced rapidly, and the dew temperature in this moment compartment will reduce, the temperature of low compartment Windshield.
The present invention is through measuring the automatic antifog system of humidity in operator's compartment Windshield temperature and the compartment; Before Windshield hazes; Notify in advance automotive air-conditioning system and driver intelligently, the control demister system begins automatic demist, makes the passenger in the compartment avoid being in the dangerous environment.
Beneficial effect of the present invention is:
(1) this method has realized the demist control of windshield effectively;
(2) sensor is close to above the Windshield of car, measures the temperature sensor of Windshield and the temperature and humidity sensor of measuring same point in the compartment, can monitor in real time to cause this three big physical quantity that hazes and take place;
(3) SELF CL demister system under an environment that can not haze has improved the service efficiency of automotive air-conditioning system, the consumption of having practiced thrift the energy greatly.
Description of drawings
Fig. 1 is the windshield antifog system system architecture scheme drawing of the embodiment of the invention 1;
Fig. 2 is the sensor assembly of the embodiment of the invention 1;
Fig. 3 is automatic demister system fundamental diagram.
The specific embodiment
Further specify below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the windshield antifog system system architecture scheme drawing of the embodiment of the invention 1, and this system comprises:
The parameter measurement input, sensor is close to above the Windshield of commercial vehicle/comm..vehicle, measures the temperature sensor of Windshield and the temperature and humidity sensor of measuring same point in the compartment, has monitored in real time to cause this three big physical quantity that hazes and take place; Calculation of parameter, the data of same point relative humidity and temperature in the temperature of the Windshield that measures and the compartment are given air-conditioning MCU system.Central controller can be analyzed and compares data; Demist control, after the judgement of air-conditioning MCU system need be carried out demist, the control demister system began automatic demist.
Sensor is close to above the Windshield of commercial vehicle/comm..vehicle, measures the temperature sensor of Windshield and the temperature and humidity sensor of measuring same point in the compartment, and monitoring in real time causes this three big physical quantity that hazes and take place.
Calculation of parameter is carried out the following step:
(1) at first be to calculate the dew temperature in the compartment to the data of same point relative humidity and temperature in the compartment through a series of formula;
(2) judge through the temperature that compares dew temperature and Windshield whether Windshield hazes.
Demister system is carried out the following step:
(1) when the relative humidity in the compartment is very high, keep good ventilation, make that malaria exchanges in the outer dry air of car and the compartment, thus the dew temperature in the relative humidity reduction compartment in the reduction compartment.
(2) directly the compartment Windshield is begun heating, make the temperature build-up of compartment Windshield, and exceed the dew temperature in the compartment, perhaps quicken
Flowing of Windshield front air, thus Windshield fwd relative humidity reduced.
(3) open the a/c system in the car and be arranged to outer circulation, compressor can be opened, and the relative humidity in compartment is reduced rapidly, in this moment compartment
Dew temperature will reduce, the temperature of low compartment Windshield.
Fig. 2 is the sensor assembly of the embodiment of the invention 1, and in order to analyze the condition that hazes, it is to need to measure that three parameter amounts are arranged, and one is the temperature of Windshield, also has the relative humidity and the temperature of same point in the compartment, is used to calculate the dew temperature in the compartment.More existing now ripe sensor assemblies can be close to above the Windshield of commercial vehicle/comm..vehicle; The module the inside has comprised the temperature sensor that can measure Windshield and the temperature and humidity sensor of measuring same point in the compartment; Through these sensors; Monitored this three big physical quantity that causes the generation of hazing in real time, analyzed and calculate thereby send air-conditioning MCU system to.
Fig. 3 is automatic demister system fundamental diagram; When using the automatic demister system of intelligence; Because when just beginning (1 ~ 2 minute); The Windshield temperature in compartment is on the low side, and the breathing owing to the several people constantly raises the relative humidity in the compartment in the compartment, thereby the dew point degree in the compartment also raises relatively.When dew temperature the time, begin to have the appearance of mist above the Windshield gradually, at this moment slowly near the temperature of Windshield
Do not take any measure if wait us, the mist above the Windshield can get more and more, and blocks the visual field of chaufeur fully, and this is in service at road
Be quite dangerous.At this time will open demister system automatically, after opening demister system automatically, from Fig. 3 (time of 3 ~ 5 minutes time)
The temperature of Windshield begins to raise, and the dew temperature in the compartment turned to decline from rising gradually, and more and more away from the temperature of Windshield
Degree, at this time the mist above the compartment Windshield also will disappear rapidly.Owing to will before Windshield hazes, operate demister system, institute in advance
Setting earlier a safety factor Δ, when dew temperature the time, just be in the fog-zone of endanger when Td+ Δ>=Tws Windshield near the temperature of Windshield, at this time will open demisting control system, begin demist; When the temperature spread of dew temperature and Windshield arrived certain numerical value, just<Tws, demister system was closed when the Td+ Δ.
Claims (5)
1. the windshield antifog system based on sensor technology through measuring humidity in operator's compartment Windshield temperature and the compartment, before Windshield hazes, is controlled demister system and is begun automatic demist, and this system comprises:
The physical quantitys such as relative temperature and temperature of same point in Windshield temperature that causing hazes takes place, the compartment have been monitored in parameter measurement input in real time;
Calculation of parameter, the data of same point relative humidity and temperature in the temperature of the Windshield that measures and the compartment are given air-conditioning MCU system, and central controller can be analyzed and compares data;
Demist control, after the judgement of air-conditioning MCU system need be carried out demist, the control demister system began automatic demist.
2. a kind of windshield antifog system according to claim 1 based on sensor technology; It is characterized in that; Sensor is close to above the Windshield of car, measures the temperature sensor of Windshield and the temperature and humidity sensor of measuring same point in the compartment.
3. a kind of windshield antifog system based on sensor technology according to claim 1 is characterized in that, said calculation of parameter is carried out the following step:
(1) at first be to calculate the dew temperature in the compartment to the data of same point relative humidity and temperature in the compartment through a series of formula;
(2) judge through the temperature that compares dew temperature and Windshield whether Windshield hazes.
4. a kind of windshield antifog system according to claim 1 and 2 based on sensor technology; It is characterized in that; Said step (2) is set earlier a safety factor Δ, when dew temperature near the temperature of Windshield the time, just is in high-risk fog-zone when Td+ Δ>=Tws Windshield; At this time demisting control system will be opened the beginning demist; When the temperature spread of dew temperature and Windshield arrived certain numerical value, just<Tws, demister system was closed when the Td+ Δ.
5. a kind of windshield antifog system based on sensor technology according to claim 1 is characterized in that, demister system is carried out the following step:
(1) when the relative humidity in the compartment is very high, keep good ventilation, make that malaria exchanges in the outer dry air of car and the compartment, thus the dew temperature in the relative humidity reduction compartment in the reduction compartment;
(2) directly the compartment Windshield is begun heating, make the temperature build-up of compartment Windshield, and exceed the dew temperature in the compartment, perhaps quicken flowing of Windshield front air, thereby reduce Windshield fwd relative humidity;
(3) open the a/c system in the car and be arranged to outer circulation, compressor can be opened, and the relative humidity in compartment is reduced rapidly, and the dew temperature in this moment compartment will reduce, the temperature of low compartment Windshield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102572665A CN102745173A (en) | 2012-07-24 | 2012-07-24 | Car windshield fog-resisting system based on sensor technology |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102572665A CN102745173A (en) | 2012-07-24 | 2012-07-24 | Car windshield fog-resisting system based on sensor technology |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995552A (en) * | 2014-05-26 | 2014-08-20 | 深圳市金立通信设备有限公司 | Screen water mist processing method and terminal |
| CN104470011A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Automobile foreside windshield anti-fog system |
| CN105235646A (en) * | 2015-10-09 | 2016-01-13 | 北京新能源汽车股份有限公司 | Defogging control method, device and equipment for vehicle |
| CN108235467A (en) * | 2017-12-13 | 2018-06-29 | 苏州长风航空电子有限公司 | A kind of display screen heats demister and defogging method automatically |
| CN108917271A (en) * | 2018-06-04 | 2018-11-30 | 长虹美菱股份有限公司 | A kind of refrigerator built-in camera is except dew control method |
| CN109532403A (en) * | 2019-01-11 | 2019-03-29 | 江苏友穗传感科技股份有限公司 | A kind of automobile demisting sensor and its demister system |
| CN109733158A (en) * | 2019-02-19 | 2019-05-10 | 宁波吉利汽车研究开发有限公司 | A kind of haze system, anti-moment glass for vehicle window anti-moment hazes method and vehicle |
| CN111000316A (en) * | 2019-12-18 | 2020-04-14 | 中原工学院 | Automatic anti-fogging double-lens helmet and using method thereof |
| CN112389157A (en) * | 2020-11-20 | 2021-02-23 | 广州橙行智动汽车科技有限公司 | Air conditioner control method and device, vehicle and storage medium |
| CN112428779A (en) * | 2020-11-19 | 2021-03-02 | 北京车和家信息技术有限公司 | Control method and device of vehicle air conditioning system |
| CN113370746A (en) * | 2021-06-30 | 2021-09-10 | 一汽奔腾轿车有限公司 | Demisting closed-loop control system of pure electric vehicle heat pump system and control method thereof |
| CN114274736A (en) * | 2022-02-16 | 2022-04-05 | 一汽解放汽车有限公司 | Automobile air conditioner anti-fog control method, device, equipment and storage medium |
| CN114312670A (en) * | 2021-12-30 | 2022-04-12 | 深圳市源建传感科技有限公司 | Automatic demisting method and device for automobile glass |
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| CN102555944A (en) * | 2010-12-08 | 2012-07-11 | 淄博高新区联创科技服务中心 | Antifogging method for automobile windshield |
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| JP2001219739A (en) * | 2000-02-08 | 2001-08-14 | Asahi Glass Co Ltd | Window glass pane for vehicle provided with sensor |
| CN2690238Y (en) * | 2004-03-31 | 2005-04-06 | 周伟 | Fog and frog removing device for automobile wind screen |
| JP2008114760A (en) * | 2006-11-06 | 2008-05-22 | Asahi Glass Co Ltd | Vehicle with anti-fogging glass and set of vehicle window glass |
| CN101596899A (en) * | 2009-07-10 | 2009-12-09 | 奇瑞汽车股份有限公司 | A kind of defrosting-defogging system for automobile |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995552B (en) * | 2014-05-26 | 2016-05-25 | 深圳市金立通信设备有限公司 | A kind of screen water smoke processing method and terminal |
| CN103995552A (en) * | 2014-05-26 | 2014-08-20 | 深圳市金立通信设备有限公司 | Screen water mist processing method and terminal |
| CN104470011A (en) * | 2014-11-06 | 2015-03-25 | 无锡科思电子科技有限公司 | Automobile foreside windshield anti-fog system |
| CN105235646A (en) * | 2015-10-09 | 2016-01-13 | 北京新能源汽车股份有限公司 | Defogging control method, device and equipment for vehicle |
| CN108235467A (en) * | 2017-12-13 | 2018-06-29 | 苏州长风航空电子有限公司 | A kind of display screen heats demister and defogging method automatically |
| CN108917271B (en) * | 2018-06-04 | 2020-05-15 | 长虹美菱股份有限公司 | Dew removal control method for built-in camera of refrigerator |
| CN108917271A (en) * | 2018-06-04 | 2018-11-30 | 长虹美菱股份有限公司 | A kind of refrigerator built-in camera is except dew control method |
| CN109532403A (en) * | 2019-01-11 | 2019-03-29 | 江苏友穗传感科技股份有限公司 | A kind of automobile demisting sensor and its demister system |
| CN109733158A (en) * | 2019-02-19 | 2019-05-10 | 宁波吉利汽车研究开发有限公司 | A kind of haze system, anti-moment glass for vehicle window anti-moment hazes method and vehicle |
| CN111000316A (en) * | 2019-12-18 | 2020-04-14 | 中原工学院 | Automatic anti-fogging double-lens helmet and using method thereof |
| CN111000316B (en) * | 2019-12-18 | 2022-06-21 | 中原工学院 | Automatic anti-fogging double-lens helmet and using method thereof |
| CN112428779A (en) * | 2020-11-19 | 2021-03-02 | 北京车和家信息技术有限公司 | Control method and device of vehicle air conditioning system |
| CN112389157A (en) * | 2020-11-20 | 2021-02-23 | 广州橙行智动汽车科技有限公司 | Air conditioner control method and device, vehicle and storage medium |
| CN113370746A (en) * | 2021-06-30 | 2021-09-10 | 一汽奔腾轿车有限公司 | Demisting closed-loop control system of pure electric vehicle heat pump system and control method thereof |
| CN114312670A (en) * | 2021-12-30 | 2022-04-12 | 深圳市源建传感科技有限公司 | Automatic demisting method and device for automobile glass |
| CN114274736A (en) * | 2022-02-16 | 2022-04-05 | 一汽解放汽车有限公司 | Automobile air conditioner anti-fog control method, device, equipment and storage medium |
| CN114274736B (en) * | 2022-02-16 | 2023-11-21 | 一汽解放汽车有限公司 | Anti-fog control method, device, equipment and storage medium for automobile air conditioner |
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Application publication date: 20121024 |