CN102991463B - Rainfall and sunshine induction control system for vehicle - Google Patents
Rainfall and sunshine induction control system for vehicle Download PDFInfo
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- CN102991463B CN102991463B CN201210464102.XA CN201210464102A CN102991463B CN 102991463 B CN102991463 B CN 102991463B CN 201210464102 A CN201210464102 A CN 201210464102A CN 102991463 B CN102991463 B CN 102991463B
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Abstract
The invention relates to a rainfall and sunshine induction control system for a vehicle. The rainfall and sunshine induction control system comprises a rainfall sensing module, a sunshine sensing module and a data processing module. The rainfall sensing module comprises a sensing circuit, at least one emitting diode, a compensating diode and a receiving diode; the compensating diode can be adjusted; the receiving diode is used for receiving optical signals; the emitting diode and the compensating diode are connected with the emitting circuit of the sensing circuit; the receiving diode is connected with the receiving circuit of the sensing circuit; and the sensing circuit is used for transferring the electric signals generated by the receiving diode to a data processing module. The rainfall and sunshine induction control system for the vehicle is simple in structure and is compatible with the LIN bus of a driving assisting system, so that an independent controller is omitted; a windscreen wiper is directly controlled by the LIN bus of the travelling assisting system to work; the existing rainfall data acquisition method is changed, and the influences of glass material, thickness and radian are avoided, thus the rainfall and sunshine induction control system is convenient to install; and a sunshine sensor is integrated, and a headlamp is controlled better, thus the driving safety and comfort are improved.
Description
The application is the applying date: 2010.11.23, and application number: 201010554031.3, title: the divisional application of automobile-used rainfall sunlight induction control system.
Technical field
The present invention relates to wiper control setup technical field, especially a kind of automobile-used rainfall sunlight induction control system.
Background technology
Wiper is one of important composition of auto body system, is related to automobile rainy day Exploration on Train Operation Safety, for eliminating Windshield, back window glass and headlight sleet on glass, dust and muddy water etc., clear to ensure glass transparent.Traditional wiper mainly carrys out the work of manual regulation wiper by combined switch, increase the work capacity that car owner drives, reduce driving comfort, and three gears are only scraped a little, are scraped soon and scrape slowly in wiper work, chaufeur is manually selected according to actual conditions, can not regulate voluntarily its running velocity according to rainfall size.
Along with the progress of technology, a kind of intelligent windscreen wiper system that can gather environment data has obtained application and development, and this class intelligent windscreen wiper system is arranged on after front windshield, comprises rainfall sensing module, rain shaving electrical machine control module and execution module.When driving, run into the weather such as sleet without manually controlling wiper, realize automation control, alleviate chaufeur burden, eliminate because chaufeur is divert one's attention and the potential safety hazard that may cause.Rainfall sensing module is the nucleus module of screen wiper, existing rainfall sensing module utilizes optical principle, adopt photoelectric conversion technique, rainwater on vehicle front windshield, fog, snow-broth are surveyed to judgement, image data, judgement after processing as calculated, according to rainfall size, controls windscreen wiper work automatically.Rainfall sensing module is not to convert the responsiveness of rain brush with several limited gears, but the responsiveness of windscreen wiper is done to step-less adjustment.It has a light emitting diode that is called as LED to be responsible for launching infrared light, and in the time that glass surface is dry, light is almost that 100% ground is reflected back, and optical receiver just can receive a lot of reflected light rayss like this.Raindrop have obvious Scattering Rules to infrared light, and rainwater on glass is more, and scattering is stronger, and the light of reflected light receptor is just fewer, and consequently rain brush action is faster.Rainfall sensing module is optical transmitting set, prism and reflected light receptor, regulate angle of incidence and the prism location of light that infrared ray is reflected by the form of total internal reflection, transmit and receive light and need higher precision, need be according to the thickness of Windshield, material, the various actual conditions design rainfall such as radian sensing module, like this will be according to different automobile types design rainfall sensing module respectively, and need technical professional could install accurately, design unreasonable or installation site is not right, will cause optical receiver not receive infrared light, thereby cause equipment normally to use.
Summary of the invention
The technical problem to be solved in the present invention is: overcome the deficiency in prior art, a kind of automobile-used rainfall sunlight induction control system is provided, solve rainfall sensing module principle complexity in prior art, precision is low, is subject to the technical matterss such as ambient interference.
The technical solution adopted for the present invention to solve the technical problems is: a kind of automobile-used rainfall sunlight induction control system, be arranged on Windshield rear for surveying rainfall and weather condition, comprise rainfall sensing module and data processing module, after processing by rainfall sensing module rainfall information collection and by data processing module, pass to driving ancillary system LIN bus, the total line control Wiping device work of driving ancillary system LIN, described rainfall sensing module comprises sensing circuit, at least one emitting diode, the reception diode of adjustable compensation diode and receiving optical signals, described emitting diode is connected the transmission circuit of sensing circuit with compensation diode, reception diode connects the acceptor circuit of sensing circuit, the electric signal transmission that sensing circuit produces reception diode is to data processing module,
Particularly, described transmission circuit has the oscillography oscillator that sends square carrier wave electric signal, emitting diode is connected with oscillography oscillator, the square carrier wave light that the light of emitting diode transmitting is certain amplitude, the tapered Windshield that diffuses to of light, major part continues to exhale, few part is reflexed to reception diode by Windshield, compensation diode is connected by regulating control with oscillography oscillator, the conditioning signal of regulating control exports data processing module to, the square carrier wave compensating light that the light of compensation diode transmitting is adjustable amplitude, between square carrier wave compensating light and square carrier wave light, there are 180 ° of phase sequence displacements, square carrier wave compensating light is transmitted directly to reception diode,
Described rainfall sensing module is also provided with one deck outward can only pass through ultrared welding glass.For protection electronic devices and components, avoid the interference of other light.
Further, preferred emission and reception facilities, reach best effect, described emitting diode is the ultrared infrarede emitting diode of transmitting, described compensation diode is the ultrared infrarede emitting diode of transmitting, described reception diode is the photodiode of induction light power, the quantity of emitting diode is 8, emitting diode is evenly arranged in the circumferencial direction of photodiode, compensation diode is arranged near photodiode, and the infrared ray of compensation diode transmitting is directly mapped to photodiode.
Further, for realize automatically opening and closing of headlight in good time, thereby also have the strong and weak sunlight sensing module of controlling head lamp switch of induction sunlight, sunlight sensing module is connected with data processing module signal.
The invention has the beneficial effects as follows, automobile-used rainfall sunlight induction control system of the present invention is simple in structure, with the supporting compatibility of driving ancillary system LIN bus, has omitted independent control, directly by the total line control Wiping device work of driving ancillary system LIN; Change existing rainfall data acquisition method, evaded glass material, thickness, the impacts such as radian, make simple installation; Integrated sunlight sensor, increases the control to head lamp, increases travel safety and traveling comfort.
Brief description of the drawings
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the contour structures schematic diagram of automobile-used rainfall sunlight induction control system embodiment of the present invention;
Fig. 2 is the circuit theory schematic diagram of automobile-used rainfall sunlight induction control system embodiment of the present invention.
In figure: 1. emitting diode, 2. compensation diode, 3. reception diode, 4. regulating control, 5. sunlight sensor, 6. welding glass.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present invention is only described in a schematic way, and therefore it only shows the formation relevant with the present invention.
As shown in Fig. 1 Fig. 2, the most preferred embodiment of automobile-used rainfall sunlight induction control system of the present invention, a kind of automobile-used rainfall sunlight induction control system, be arranged on Windshield rear for surveying rainfall and weather condition, comprise rainfall sensing module, sunlight sensing module and data processing module, gather the Weather information such as rainfall and sunlight by rainfall sensing module and sunlight sensing module 5, and after processing by data processing module, pass to the ancillary system LIN bus of driving a vehicle, the equipment work such as the total line control Wiping device of ancillary system LIN and head lamp of driving a vehicle.
Rainfall sensing module comprises the reception diode 3 of sensing circuit, at least one emitting diode 1, adjustable compensation diode 2 and receiving optical signals, described emitting diode 1 is connected the transmission circuit of sensing circuit with compensation diode 2, reception diode 3 connects the acceptor circuit of sensing circuit, and the electric signal transmission that sensing circuit produces reception diode 3 is to data processing module.
Thereby there is the strong and weak sunlight sensing module 5 of controlling head lamp switch of induction sunlight, sunlight sensing module 5 is connected with data processing module signal, data processing module will record sunlight signal and pass to driving ancillary system LIN bus, work according to setup parameter control car headlamp.Automobile-used rainfall sunlight induction control system of the present invention, is no longer independently additional equipment of vehicle, is accessory equipment a kind of and the supporting compatibility of driving ancillary system LIN bus, has the function of controlling windscreen wiper system and Lighting System.
The sensing circuit of rainfall sensing module comprises transmission circuit and acceptor circuit, transmission circuit has the oscillography oscillator that sends square carrier wave electric signal, emitting diode 1 is connected with oscillography oscillator, the light that emitting diode 1 is launched is the square carrier wave light of certain amplitude, the tapered Windshield that diffuses to of light, major part continues to exhale, and few part is reflexed to reception diode 3 by Windshield; Compensation diode 2 is connected by regulating control 4 with oscillography oscillator, regulating control 4 has the function that regulates square carrier wave compensating light amplitude, the conditioning signal of regulating control exports data processing module to, the square carrier wave compensating light that the light that compensation diode 2 is launched is adjustable amplitude, between square carrier wave compensating light and square carrier wave light, have 180 ° of phase sequence displacements, square carrier wave compensating light is transmitted directly to reception diode 3.Reception diode 3 receives two-beam simultaneously, if two-beam amplitude is in the same size, 180 ° of displacements of phase sequence, two-beam offsets, when installation, can regulate square carrier wave compensating light by regulating control, the light that square carrier wave compensating light and square carrier wave light part are reflected through Windshield offsets, and the amplitude that makes reception diode 3 is 0 or constant.What thereby in the time that Windshield has the objects such as raindrop outward, square carrier wave light reflected is more, the electric signal of reception diode 3 is changed, break the balance that light that square carrier wave compensating light and square carrier wave light part reflect through Windshield offsets, the amplitude of reception diode 3 is not 0, according to changing quantitative control windscreen wiper work speed, the larger windscreen wiper work of change amount is faster, otherwise slower, realizes automatic control and the stepless time adjustment of windscreen wiper.
Further, preferred emission and reception facilities, light-emitting diode (LED) is a kind of solid-state semiconductor devices that electricity can be converted into light, has that volume is little, consumption of current is low, long service life, high brightness, a characteristics and advantages such as low in calories; Photodiode (PD) is a kind of optoelectronic sensor that optical signal can be converted to electric signal, has " photoconduction " characteristic, and light intensity is larger, and counter-current is larger.Emitting diode 1 is the ultrared infrarede emitting diode of transmitting, compensation diode 2 is the ultrared infrarede emitting diode of transmitting, reception diode 3 is the photodiode of induction light power, the quantity of emitting diode 1 is 8, emitting diode 1 is evenly arranged in the circumferencial direction of photodiode, compensation diode 2 is arranged near reception diode 3, and the infrared ray that compensation diode 2 is launched is directly mapped to reception diode 3.
Acceptor circuit has synchronous demodulator and proportional and integral controller, and synchronous demodulator input end connects reception diode, and proportional and integral controller will be transferred to data processing module after the Electric signal processing of synchronous demodulator.The data-signal of data processing module collection comprises the sunlight signal that rainfall signal that proportional and integral controller provides, compensating light strong and weak signals that regulating control provides and sunlight sensor provide, data processing module is input to driving ancillary system LIN bus after the data-signal of collection is processed, according to setup parameter control Wiping device and head lamp work.
Further, for protection electronic devices and components, avoid the interference of other light to components and parts, reach best sensing control effect, rainfall sensing module is also provided with one deck outward can only pass through ultrared welding glass 6, and the infrared wavelength range that can pass through is 800 ~ 860nm.
Introduce the present invention below in conjunction with concrete use, automobile-used rainfall sunlight induction control system of the present invention, is arranged between front windshield and back mirror, avoids affecting the sight line of chaufeur as far as possible.Open after this automobile-used rainfall sunlight induction control system, 8 emitting diodes 1 send square carrier wave light, light is tapered to be dispersed, detection area just expands like this, the more realistic weather condition of image data, under without rain state, the light overwhelming majority is even all launched through glass, only have hoot to be returned to be received diode 3 by glass-reflected and receive, general run of thins light does not reflect.Need open compensation diode 2 if there is reflection, compensation diode 2 transmitter-side carrier wave compensating lights, between square carrier wave compensating light and square carrier wave light, there are 180 ° of phase sequence displacements, regulate square carrier wave compensating light intensity and amplitude by regulating control 4, the light that square carrier wave compensating light and square carrier wave light part are reflected through Windshield offsets, the amplitude that makes reception diode is 0 or constant, and this is the necessary condition of this automobile-used rainfall sunlight induction control system work.The installation of finishing equipment and adjustment, simple and convenient like this, easy operating.
In the time that Windshield lateral surface has the objects such as raindrop, the square carrier wave light that emitting diode 1 sends is reflected back just increasing of reception diode, raindrop are more, reflected light is stronger, reception diode 3 is that the counter-current of photodiode generation is larger, and data processing module is made response, and executive signal is passed to driving ancillary system LIN bus, thereby according to corresponding situation control windscreen wiper work, realize automatic control and the stepless time adjustment of Wiping device.
Taking above-mentioned foundation desirable embodiment of the present invention as enlightenment, by above-mentioned description, relevant staff can, not departing from the scope of this invention technological thought, carry out various change and amendment completely.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to claim scope.
Claims (3)
1. an automobile-used rainfall sunlight induction control system, be arranged on Windshield rear for surveying rainfall and weather condition, comprise rainfall sensing module and data processing module, after processing by rainfall sensing module rainfall information collection and by data processing module, pass to driving ancillary system LIN bus, the total line control Wiping device work of driving ancillary system LIN, it is characterized in that: described rainfall sensing module comprises sensing circuit, at least one emitting diode (1), the reception diode (3) of adjustable compensation diode (2) and receiving optical signals, described emitting diode (1) is connected the transmission circuit of sensing circuit with compensation diode (2), reception diode (3) connects the acceptor circuit of sensing circuit, the electric signal transmission that sensing circuit produces reception diode is to data processing module, described transmission circuit has the oscillography oscillator that sends square carrier wave electric signal, emitting diode (1) is connected with oscillography oscillator, the square carrier wave light that the light of emitting diode (1) transmitting is certain amplitude, the tapered Windshield that diffuses to of light, major part continues to exhale, few part is reflexed to reception diode (3) by Windshield, compensation diode (2) is connected by regulating control (4) with oscillography oscillator, the conditioning signal of regulating control (4) exports data processing module to, the square carrier wave compensating light that the light of compensation diode (2) transmitting is adjustable amplitude, between square carrier wave compensating light and square carrier wave light, there are 180 ° of phase sequence displacements, square carrier wave compensating light is transmitted directly to reception diode (3),
Described rainfall sensing module is also provided with one deck outward can only pass through ultrared welding glass (6).
2. automobile-used rainfall sunlight induction control system as claimed in claim 1, it is characterized in that: described emitting diode (1) is the ultrared infrarede emitting diode of transmitting, described compensation diode (2) is the ultrared infrarede emitting diode of transmitting, described reception diode (3) is the photodiode of induction light power, the quantity of emitting diode (1) is 8, emitting diode (1) is evenly arranged in the circumferencial direction of photodiode, compensation diode (2) is arranged near photodiode, the infrared ray of compensation diode (2) transmitting is directly mapped to photodiode.
3. automobile-used rainfall sunlight induction control system as claimed in claim 1, is characterized in that: thus also there is the strong and weak sunlight sensing module (5) of controlling head lamp switch of induction sunlight, and sunlight sensing module (5) is connected with data processing module signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464102.XA CN102991463B (en) | 2010-11-23 | 2010-11-23 | Rainfall and sunshine induction control system for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210464102.XA CN102991463B (en) | 2010-11-23 | 2010-11-23 | Rainfall and sunshine induction control system for vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010554031 Division CN102069761B (en) | 2010-11-23 | 2010-11-23 | Rainfall and sunshine sensing control system for vehicle |
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| CN102991463A CN102991463A (en) | 2013-03-27 |
| CN102991463B true CN102991463B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210464102.XA Active CN102991463B (en) | 2010-11-23 | 2010-11-23 | Rainfall and sunshine induction control system for vehicle |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103786687B (en) * | 2014-02-10 | 2016-03-02 | 江苏日盈电子股份有限公司 | The automobile smooth control method of rainfall light sensor |
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|---|---|---|---|---|
| DE4403221A1 (en) * | 1993-07-02 | 1995-01-12 | Gerd Reime | Arrangement for measuring or detecting a change in a back-scattering element |
| CN1138842A (en) * | 1994-02-26 | 1996-12-25 | 罗伯特·博施有限公司 | Rain sensor |
| DE19801745A1 (en) * | 1998-01-20 | 1999-07-22 | Itt Mfg Enterprises Inc | Car windscreen condition monitor for detecting rain |
| CN201535828U (en) * | 2009-05-27 | 2010-07-28 | 上海沪工汽车电器有限公司 | Photoelectric-type rainfall sensor |
| CN101797908A (en) * | 2009-12-25 | 2010-08-11 | 奇瑞汽车股份有限公司 | Control system of wiper and headlight |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI95081C (en) * | 1994-04-07 | 1995-12-11 | Matti Kolari | Method and apparatus for detecting liquid on solid surface material |
| US6091065A (en) * | 1998-12-31 | 2000-07-18 | Libbey-Owens-Ford Co. | Moisture sensor with digital signal processing filtering |
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2010
- 2010-11-23 CN CN201210464102.XA patent/CN102991463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4403221A1 (en) * | 1993-07-02 | 1995-01-12 | Gerd Reime | Arrangement for measuring or detecting a change in a back-scattering element |
| CN1138842A (en) * | 1994-02-26 | 1996-12-25 | 罗伯特·博施有限公司 | Rain sensor |
| DE19801745A1 (en) * | 1998-01-20 | 1999-07-22 | Itt Mfg Enterprises Inc | Car windscreen condition monitor for detecting rain |
| CN201535828U (en) * | 2009-05-27 | 2010-07-28 | 上海沪工汽车电器有限公司 | Photoelectric-type rainfall sensor |
| CN101797908A (en) * | 2009-12-25 | 2010-08-11 | 奇瑞汽车股份有限公司 | Control system of wiper and headlight |
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| CN102991463A (en) | 2013-03-27 |
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Address after: 213119 Jiangsu city of Changzhou province Hengshan bridge Wujin District Fang Mao Cun Jiangsu nichiei electronic Limited by Share Ltd Applicant after: JIANGSU RIYING ELECTRONICS Co.,Ltd. Address before: 213119 Jiangsu city of Changzhou province Hengshan bridge Wujin District Fang Mao Cun Jiangsu Riyin Electrical Co. Ltd. Applicant before: JIANGSU RIYING ELECTRICAL Co.,Ltd. |
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Effective date of registration: 20220718 Address after: 213022, No. 9, Hui Chang Road, private science and Technology Industrial Park, Xinbei District, Jiangsu, Changzhou Patentee after: CHANGZHOU HUICHANG SENSOR Co.,Ltd. Address before: 213119 Jiangsu Riying Electronics Co., Ltd., fangmao village, Hengshan bridge, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU RIYING ELECTRONICS Co.,Ltd. |