CN102951103B - Rainfall sunlight sensed control system for vehicle - Google Patents
Rainfall sunlight sensed control system for vehicle Download PDFInfo
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- CN102951103B CN102951103B CN201210451331.8A CN201210451331A CN102951103B CN 102951103 B CN102951103 B CN 102951103B CN 201210451331 A CN201210451331 A CN 201210451331A CN 102951103 B CN102951103 B CN 102951103B
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Abstract
The invention relates to a rainfall sunlight sensed control system for a vehicle. The system comprises a rainfall sensing module, a sunlight sensing module and a data processing module, wherein the rainfall sensing module comprises a sensing circuit, at least one emitting diode, an adjustable compensation diode and a receiving diode which receives a light signal; the emitting diode and the compensation diode are connected with an emitting circuit of the sensing circuit; the receiving diode is connected with a receiving circuit of the sensing circuit; and the sensing circuit transmits an electric signal generated by the receiving diode to the data processing module. The rainfall sunlight sensed control system for the vehicle is simple in structure, and is matched and compatible with a vehicle auxiliary system LIN bus, so that an independent controller is omitted, and a wiper device is directly controlled by the vehicle auxiliary system LIN bus, the current rainfall data acquisition method is changed, the influences of a glass material, thickness, gradient and the like are avoided, and mounting is simple. A sunlight sensor is integrated, so that the control on a head lamp is increased, and the safety and the comfort of driving are increased.
Description
The application is the applying date: 2010.11.23, 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 sleet, dust and the muddy water etc. on Windshield, back window glass and large lamp glass, to ensure that glass transparent is clear.Traditional wiper carrys out the work of manual regulation wiper mainly through combined switch, add the work capacity that car owner drives, reduce driving comfort sense, and three gears are scraped a little, scrape soon and scraped slowly to wiper work only, chaufeur is manually selected according to actual conditions, can not regulate its running velocity voluntarily according to rainfall size.
Along with the progress of technology, a kind of intelligent windscreen wiper system that can gather environment data obtains application and development, and this kind of intelligent windscreen wiper system is arranged on after front windshield, comprises rainfall sensing module, rain shaving electrical machine control module and execution module.Run into the weather such as sleet during driving without the need to Non-follow control wiper, realize Automated condtrol, alleviate chaufeur burden, eliminate the potential safety hazard that may cause due to driver distraction.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 carried out detection and judged, image data, judge after process as calculated, according to rainfall size, automatically control windscreen wiper work.Rainfall sensing module is not with several limited gear to convert the responsiveness of rain brush, but does step-less adjustment to the responsiveness of windscreen wiper.It has a light emitting diode being called as LED to be responsible for launching infrared light, and when glass surface is dry, light is almost that 100% ground is reflected back, and such optical receiver just can receive a lot of reflected light rayss.Raindrop have obvious Scattering Rules to infrared light, and the rainwater on glass is more, and scattering is stronger, and the light of reflected light receptor is fewer, and consequently rain brush action is faster.Rainfall sensing module is optical transmitting set, prism and reflected light receptor, regulate the angle of incidence of light and prism location that infrared ray is reflected by the form of total internal reflection, transmitting and receiving light needs higher precision, need according to the thickness of Windshield, material, the various actual conditions design rainfall such as radian sensing module, like this will 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, optical receiver will be caused not receive infrared light, thus 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, provides a kind of automobile-used rainfall sunlight induction control system, solves rainfall sensing module principle complexity in prior art, precision is low, be 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 detecting rainfall and weather condition, comprise rainfall sensing module and data processing module, by rainfall sensing module rainfall information collection and by passing to driving ancillary system LIN bus after data processing module process, the work of driving ancillary system LIN bus marco Wiping device, 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 compensating diode, reception diode connects the acceptor circuit of sensing circuit, the electric signal transmission that reception diode produces by sensing circuit is to data processing module,
Particularly, described transmission circuit has the oscillography oscillator sending square multi-carrier telecommunication number, emitting diode is connected with oscillography oscillator, the light that emitting diode is launched is the square carrier light of certain amplitude, light is tapered diffuses to Windshield, major part continues to exhale, few part is reflexed to reception diode by Windshield, compensate diode to be connected by regulating control with oscillography oscillator, the conditioning signal of regulating control exports data processing module to, the light compensating diode emitter is the square carrier compensation light of adjustable amplitude, 180 ° of phase sequences are had to be shifted between square carrier compensation light and square carrier light, square carrier compensation light is transmitted directly to reception diode,
Further, for realizing automatically opening and closing of headlight in good time, also have and respond to sunlight power thus the sunlight sensing module controlling head lamp switch, sunlight sensing module is connected with data processing module signal.
Further, preferred emission and reception facilities, reach best effect, described emitting diode is for launching ultrared infrarede emitting diode, described compensation diode is for launching ultrared infrarede emitting diode, described reception diode is the photodiode of induction light intensity, the quantity of emitting diode is 8, emitting diode is evenly arranged in the circumferencial direction of photodiode, compensating diode is arranged near photodiode, and the infrared ray compensating diode emitter is directly mapped to photodiode.
The invention has the beneficial effects as follows, one of the present invention automobile-used rainfall sunlight induction control system structure is simple, with the supporting compatibility of driving ancillary system LIN bus, eliminates independent control, directly by the work of driving ancillary system LIN bus marco Wiping device; Change existing rainfall data acquisition method, evaded glass material, thickness, the impacts such as radian, made simple installation; Integrated sunlight sensor, increases the control to head lamp, increases travel safety and traveling comfort.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the contour structures schematic diagram of a kind of automobile-used rainfall sunlight induction control system embodiment of the present invention;
Fig. 2 is the circuit theory schematic diagram of a kind of automobile-used rainfall sunlight induction control system embodiment of the present invention.
In figure: 1. emitting diode, 2. compensate 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, only basic structure of the present invention are 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 a kind 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 detecting rainfall and weather condition, comprise rainfall sensing module, sunlight sensing module and data processing module, the Weather information such as rainfall and sunlight is gathered by rainfall sensing module and sunlight sensing module 5, and by passing to driving ancillary system LIN bus after data processing module process, equipment work such as driving ancillary system LIN bus marco Wiping device and head lamp etc.
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 compensating diode 2, reception diode 3 connects the acceptor circuit of sensing circuit, and the electric signal transmission that reception diode 3 produces by sensing circuit is to data processing module.
There is induction sunlight power thus the sunlight sensing module 5 of control head lamp switch, sunlight sensing module 5 is connected with data processing module signal, data processing module will record sunlight signal transmission to driving ancillary system LIN bus, control car headlamp work according to setup parameter.Automobile-used rainfall sunlight induction control system of the present invention is no longer vehicle independently additional equipment, is accessory equipment that is a kind of and the supporting compatibility of driving ancillary system LIN bus, has the function 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 sending square multi-carrier telecommunication number, emitting diode 1 is connected with oscillography oscillator, the light that emitting diode 1 is launched is the square carrier light of certain amplitude, light is tapered diffuses to Windshield, major part continues to exhale, and few part is reflexed to reception diode 3 by Windshield; Compensate diode 2 to be connected by regulating control 4 with oscillography oscillator, regulating control 4 has the function regulating square carrier compensation light amplitude, the conditioning signal of regulating control exports data processing module to, the light compensating diode 2 transmitting is the square carrier compensation light of adjustable amplitude, have 180 ° of phase sequences to be shifted between square carrier compensation light and square carrier light, square carrier compensation light is transmitted directly to reception diode 3.Reception diode 3 receives two-beam simultaneously, if two-beam amplitude is in the same size, phase sequence 180 ° displacement, then two-beam offsets, square carrier compensation light is regulated by regulating control during installation, the light that square carrier compensation light and square carrier light part are reflected through Windshield offsets, and makes the amplitude of reception diode 3 be 0 or constant.Thus when there being the objects such as raindrop outside Windshield square carrier light reflect more, the electric signal of reception diode 3 is changed, break the balance that square carrier compensation light and square carrier light part offset through the light that Windshield reflects, the amplitude of reception diode 3 is not 0, windscreen wiper work speed is controlled according to knots modification, the work of knots modification larger windscreen wiper 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, have that volume is little, consumption of current is low, long service life, high brightness, the 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, and have " photoconduction " characteristic, the intensity of light is larger, and counter-current is larger.Emitting diode 1 is for launching ultrared infrarede emitting diode, compensate diode 2 for launching ultrared infrarede emitting diode, reception diode 3 is the photodiode of induction light intensity, the quantity of emitting diode 1 is 8, emitting diode 1 is evenly arranged in the circumferencial direction of photodiode, compensating diode 2 is arranged near reception diode 3, and the infrared ray compensating diode 2 transmitting 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 is transferred to data processing module by after the Electric signal processing of synchronous demodulator.The compensating light strong and weak signals that the data-signal of data processing module collection comprises rainfall signal that proportional and integral controller provides, regulating control provides and the sunlight signal that sunlight sensor provides, data processing module, by being input to driving ancillary system LIN bus after the data-signal process of collection, controls Wiping device and head lamp work according to setup parameter.
Further, be protection electronic devices and components, avoid other light to the interference of components and parts, reach best sensing control effect, rainfall sensing module is also provided with one deck outward can only by ultrared welding glass 6, by infrared wavelength range be 800 ~ 860nm.
Introduce the present invention below in conjunction with concrete use, one of the present invention automobile-used rainfall sunlight induction control system, is arranged between front windshield and back mirror, avoids the sight line affecting chaufeur as far as possible.After opening this automobile-used rainfall sunlight induction control system, 8 emitting diodes 1 send square carrier light, light is tapered to be dispersed, such detection area just expands, the more realistic weather condition of image data, without under rain state, the light overwhelming majority is even all launched through glass, only have hoot can be received by glass-reflected received diode 3 of returning, general run of thins light does not reflect.If have reflection to open compensate diode 2, compensate diode 2 transmitter-side carrier compensation light, 180 ° of phase sequences are had to be shifted between square carrier compensation light and square carrier light, square carrier compensation light intensity and amplitude is regulated by regulating control 4, the light that square carrier compensation light and square carrier light part are reflected through Windshield offsets, make the amplitude of reception diode be 0 or constant, this is the necessary condition of this automobile-used rainfall sunlight induction control system work.The installation of such finishing equipment and adjustment, simple and convenient, be easy to operation.
When Windshield lateral surface has the objects such as raindrop, the square carrier light that emitting diode 1 sends is reflected back just increasing of reception diode, raindrop are more, reflected light is stronger, the counter-current that reception diode 3 i.e. photodiode produces is larger, and data processing module makes response, executive signal is passed to driving ancillary system LIN bus, thus control windscreen wiper work according to corresponding situation, realize automatic control and the stepless time adjustment of Wiping device.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this invention technological thought, can 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 right.
Claims (2)
1. an automobile-used rainfall sunlight induction control system, be arranged on Windshield rear for detecting weather condition, comprise rainfall sensing module and data processing module, by rainfall sensing module rainfall information collection and by passing to driving ancillary system LIN bus after data processing module process, the work of driving ancillary system LIN bus marco Wiping device, 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 compensating diode (2), reception diode (3) connects the acceptor circuit of sensing circuit, the electric signal transmission that reception diode produces by sensing circuit is to data processing module, described transmission circuit has the oscillography oscillator sending square multi-carrier telecommunication number, emitting diode (1) is connected with oscillography oscillator, the light that emitting diode (1) is launched is the square carrier light of certain amplitude, light is tapered diffuses to Windshield, major part continues to exhale, few part is reflexed to reception diode (3) by Windshield, compensate diode (2) to be connected by regulating control (4) with oscillography oscillator, the conditioning signal of regulating control (4) exports data processing module to, the light that compensation diode (2) is launched is the square carrier compensation light of adjustable amplitude, 180 ° of phase sequences are had to be shifted between square carrier compensation light and square carrier light, square carrier compensation light is transmitted directly to reception diode (3),
Also have induction sunlight power thus the sunlight sensing module (5) of control head lamp switch, sunlight sensing module (5) is connected with data processing module signal.
2. the automobile-used rainfall sunlight of the one as described in claim 1 induction control system, it is characterized in that: described emitting diode (1) is for launching ultrared infrarede emitting diode, described compensation diode (2) is for launching ultrared infrarede emitting diode, described reception diode (3) is the photodiode of induction light intensity, the quantity of emitting diode (1) is 8, emitting diode (1) is evenly arranged in the circumferencial direction of photodiode, compensating diode (2) is arranged near photodiode, the infrared ray that compensation diode (2) is launched directly is mapped to photodiode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210451331.8A CN102951103B (en) | 2010-11-23 | 2010-11-23 | Rainfall sunlight sensed control system for vehicle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210451331.8A CN102951103B (en) | 2010-11-23 | 2010-11-23 | Rainfall sunlight sensed control system for vehicle |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN 201010554031 Division CN102069761B (en) | 2010-11-23 | 2010-11-23 | Rainfall and sunshine sensing control system for vehicle |
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| CN102951103A CN102951103A (en) | 2013-03-06 |
| CN102951103B true CN102951103B (en) | 2015-02-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273906B (en) * | 2013-06-19 | 2016-03-16 | 北京经纬恒润科技有限公司 | A kind of sense rain signal adjusting method, device and vehicle intelligent windscreen wiper system |
| KR101510010B1 (en) * | 2013-12-17 | 2015-04-07 | 현대자동차주식회사 | Intgrated sensor apparatus of vehicle |
| CN112810554A (en) * | 2021-02-19 | 2021-05-18 | 安徽安凯汽车股份有限公司 | Application of rainfall light sensor on commercial vehicle |
| CN115373052B (en) * | 2022-10-25 | 2023-08-22 | 山东风途物联网科技有限公司 | Control system of infrared optical rain gauge |
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| EP1181603B1 (en) * | 1998-12-31 | 2007-06-27 | Libbey-Owens-Ford Co. | Moisture sensor with digital signal processing filtering |
| 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 |
| CN101819144A (en) * | 2010-05-06 | 2010-09-01 | 上海大学 | Automobile rainfall sensor |
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2010
- 2010-11-23 CN CN201210451331.8A patent/CN102951103B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1181603B1 (en) * | 1998-12-31 | 2007-06-27 | Libbey-Owens-Ford Co. | Moisture sensor with digital signal processing filtering |
| 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 |
| CN101819144A (en) * | 2010-05-06 | 2010-09-01 | 上海大学 | Automobile rainfall sensor |
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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: 20220720 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. |
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