CN104582056A - Automatic light-adjusting system of automotive headlamp - Google Patents
Automatic light-adjusting system of automotive headlamp Download PDFInfo
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- CN104582056A CN104582056A CN201310473016.XA CN201310473016A CN104582056A CN 104582056 A CN104582056 A CN 104582056A CN 201310473016 A CN201310473016 A CN 201310473016A CN 104582056 A CN104582056 A CN 104582056A
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Abstract
The invention discloses an automatic light-adjusting system of an automotive headlamp. The automatic light-adjusting system comprises an automotive headlamp, an illumination intensity sensor module, a controller module and a light-adjusting drive module, wherein an illumination intensity signal detected by the illumination intensity sensor module is input to the controller module; the controller module is used for analyzing the input illumination intensity signal, and then inputting a control signal to the light-adjusting drive module; the light-adjusting drive module is used for controlling luminance of the automotive headlamp. The automatic light-adjusting system can be used for automatically adjusting the luminance of the automotive headlamp according to the luminance of a headlamp of an automobile coming from an opposite direction, thereby reducing the stimulation of light to eyes of a driver of the automobile coming from the opposite direction, and greatly reducing the probability of traffic accidents.
Description
Technical field
The present invention relates to a kind of car headlamp, more specifically relate to a kind of car headlamp automatic light control system that automatically can adjust car headlamp brightness.
Background technology
Car headlamp is headlight again, is loaded on automobile head both sides, for the illumination of driving at night road.Have two lamp systems and four lamps point.The headlamp of automobile generally has the types such as white heat, halogen, xenon.Along with the development of automotive engineering, past that incandescent vacuum lamp is successively eliminated, and the headlamp of present automobile is based on Halogen lamp LED, xenon lamp.
Halogen lamp LED has the light distribution structure of its uniqueness, often props up in light and has two groups of filaments, and one group is main beam filament, the light sent through lampshade speculum reflection after shoot forward straight, this light source be exactly we said " distance light " at ordinary times.The illumination brightness that xenon lamp sends is the twice of generic halogen lamp, and energy consumption be only its 2/3rds, ten times of generic halogen lamp can be reached useful life.The luxurious money such as brand-new Audi, Passat, Buick Regal, Mazda of current domestic release is all equipped with Xenon headlamp.See from the market, Xenon headlamp will become the main flow in market.
Illuminating effect due to headlamp directly affects operation and the traffic safety of driving at night, so each automobile vendor extremely pays close attention to illumination wattage and the useful life of car headlamp, although existing vehicle front lighting lamp wiring can shine far and very energy-conservation, but existing car headlamp ubiquity problem is exactly: once sending a car in opposite also opens headlamp, the driver easily sent a car to opposite causes and dazzles the eyes, and is easy to occur traffic accident.
Summary of the invention
The object of the present invention is to provide a kind of car headlamp automatic light control system, this car headlamp can adjust the brightness of this car headlamp automatically according to the send a car brightness of headlamp of opposite, thus decrease light to the stimulation of the other side's driver's eyes, greatly reduce the probability that traffic accident occurs.
In order to realize above object, the technical solution adopted in the present invention is: car headlamp automatic light control system, comprises car headlamp, intensity of illumination sensor assembly, controller module, light modulation driver module; The intensity of illumination signal that described intensity of illumination sensor assembly detects is input to controller module; Described controller module is to the intensity of illumination signal analysis and processing of input, and then to light modulation driver module input control signal, light modulation driver module controls the brightness of car headlamp.
Technical scheme more specifically, described intensity of illumination sensor assembly comprises the first intensity of illumination transducer and the second intensity of illumination transducer; First intensity of illumination transducer detects opposite and to send a car the intensity of illumination of headlamp, and detection signal is input to controller module, and detection signal for detecting the intensity of illumination of surrounding environment, and is input to controller module by the second intensity of illumination transducer.
Most preferred technical scheme, described controller module selects AVR single chip to realize.
Most preferred technical scheme, described intensity of illumination sensor assembly selects TLS2561FN.
Compared with prior art, the invention has the advantages that: car headlamp proposed by the invention can adjust the brightness of this car headlamp automatically according to the send a car brightness of headlamp of opposite, thus decrease light to the stimulation of the other side's driver's eyes, greatly reduce the probability that traffic accident occurs.
Accompanying drawing explanation
Fig. 1 is the block diagram of car headlamp automatic light control system of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
Car headlamp automatic light control system, comprises car headlamp, intensity of illumination sensor assembly, controller module, light modulation driver module; The intensity of illumination signal that described intensity of illumination sensor assembly detects is input to controller module; Described controller module is to the intensity of illumination signal analysis and processing of input, and then to light modulation driver module input control signal, light modulation driver module controls the brightness of car headlamp.
Described intensity of illumination sensor assembly comprises the first intensity of illumination transducer and the second intensity of illumination transducer; First intensity of illumination transducer detects opposite and to send a car the intensity of illumination of headlamp, and detection signal is input to controller module, and detection signal for detecting the intensity of illumination of surrounding environment, and is input to controller module by the second intensity of illumination transducer.
Wherein, described controller module selects ATmega16 chip microcontroller.
Wherein, TLS2561FN transducer all selected by the first described intensity of illumination transducer and the second intensity of illumination transducer.
Wherein, described light modulation driver module is exactly the different voltage output module of output voltage, different voltage driven car headlamps, thus realizes the object changing car headlamp brightness.
The concrete light modulation principle of car headlamp automatic light control system of the present invention: during due to meeting, the street lamp on possible road surface opens, and the headlamp of opposite car also opens, this situation wants that the words of the intensity of illumination obtaining opposite vehicle head lamp just must remove the interference of street lamp intensity of illumination, so adopt the first intensity of illumination transducer to detect the intensity of illumination of opposite vehicle head lamp, the second intensity of illumination transducer is adopted to detect the intensity of illumination of surrounding environment, then controller module judges according to the difference of the first intensity of illumination transducer and the second intensity of illumination sensor parameters, regulate the intensity of illumination of this car headlamp.
The optical receiving end of the second intensity of illumination transducer will point to directly over automobile, thus guarantee accept be surrounding environment illumination intensity (such as street lamp intensity of illumination), the optical receiving end of the first intensity of illumination transducer will point to the dead ahead of automobile, the light accepted due to the first intensity of illumination transducer contains the intensity of illumination of opposite vehicle head lamp and the intensity of illumination of surrounding environment, so deduct the optical parameter of the second intensity of illumination transducer by the optical parameter of the first intensity of illumination transducer, (be set to x) is exactly the intensity of illumination of opposite vehicle head lamp to final difference, because the words that the intensity of illumination of opposite vehicle head lamp is larger, just require the intensity of illumination of this car headlamp less inversely prroportional relationship, if this car headlamp output intensity is y, so y=k/x(k is the parameter that can regulate).
The present invention can arrange the button of a manual adjustments parameter k, thus can the intensity of illumination that finally exports of this car of manual adjustments headlamp as required.
Claims (4)
1. car headlamp automatic light control system, is characterized in that: comprise car headlamp, intensity of illumination sensor assembly, controller module, light modulation driver module; The intensity of illumination signal that described intensity of illumination sensor assembly detects is input to controller module; Described controller module is to the intensity of illumination signal analysis and processing of input, and then to light modulation driver module input control signal, light modulation driver module controls the brightness of car headlamp.
2. car headlamp automatic light control system according to claim 1, is characterized in that, described intensity of illumination sensor assembly comprises the first intensity of illumination transducer and the second intensity of illumination transducer; First intensity of illumination transducer detects opposite and to send a car the intensity of illumination of headlamp, and detection signal is input to controller module, and detection signal for detecting the intensity of illumination of surrounding environment, and is input to controller module by the second intensity of illumination transducer.
3. car headlamp automatic light control system according to claim 1 and 2, is characterized in that, described controller module selects AVR single chip to realize.
4. car headlamp automatic light control system according to claim 1 and 2, is characterized in that, described intensity of illumination sensor assembly selects TLS2561FN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473016.XA CN104582056A (en) | 2013-10-12 | 2013-10-12 | Automatic light-adjusting system of automotive headlamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310473016.XA CN104582056A (en) | 2013-10-12 | 2013-10-12 | Automatic light-adjusting system of automotive headlamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104582056A true CN104582056A (en) | 2015-04-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310473016.XA Pending CN104582056A (en) | 2013-10-12 | 2013-10-12 | Automatic light-adjusting system of automotive headlamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879143A (en) * | 2017-03-13 | 2017-06-20 | 北京儿童创客教育科技有限公司 | Automobile automatic light control system |
| CN110329156A (en) * | 2019-07-22 | 2019-10-15 | 浙江鸿泉车联网有限公司 | The recognition methods of vehicle backlight blind area Chinese herbaceous peony information and device |
-
2013
- 2013-10-12 CN CN201310473016.XA patent/CN104582056A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106879143A (en) * | 2017-03-13 | 2017-06-20 | 北京儿童创客教育科技有限公司 | Automobile automatic light control system |
| CN110329156A (en) * | 2019-07-22 | 2019-10-15 | 浙江鸿泉车联网有限公司 | The recognition methods of vehicle backlight blind area Chinese herbaceous peony information and device |
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Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |