CN109808587A - An intelligent control system for automobile headlights - Google Patents
An intelligent control system for automobile headlights Download PDFInfo
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- CN109808587A CN109808587A CN201910197489.9A CN201910197489A CN109808587A CN 109808587 A CN109808587 A CN 109808587A CN 201910197489 A CN201910197489 A CN 201910197489A CN 109808587 A CN109808587 A CN 109808587A
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Abstract
本发明涉及汽车安全领域，其公开了一种汽车前照灯智能控制系统，解决手动调节前照灯存在的操作繁琐以及存在安全隐患的问题。该系统包括主控制器、蓄电池、前照灯模块、光控继电器、FM‑CW雷达传感器、启动开关电路和复位电路；启动开关电路用于在车辆点火后向主控制器输入车辆启动信号，触发主控制器工作；光控继电器用于检测外界环境光强的变化并输入主控制器；FM‑CW雷达传感器用于检测对向来车或与同向前车之间的距离和相对车速并输入主控制器；主控制器根据光控继电器和FM‑CW雷达传感器的检测信号控制前照灯模块的亮度调节和远近光自动切换；蓄电池为系统提供电源；复位电路连接主控制器，用于提供复位功能。本发明适用于对汽车的前照灯的智能控制。
The invention relates to the field of automobile safety, and discloses an intelligent control system for automobile headlights, which solves the problems of complicated operation and potential safety hazards in manually adjusting the headlights. The system includes a main controller, a battery, a headlamp module, a light control relay, an FM‑CW radar sensor, a start switch circuit and a reset circuit; the start switch circuit is used to input a vehicle start signal to the main controller after the vehicle is ignited, triggering the The main controller works; the light control relay is used to detect the change of the external ambient light intensity and input it to the main controller; the FM‑CW radar sensor is used to detect the distance and relative speed between the oncoming vehicle or the same vehicle The controller; the main controller controls the brightness adjustment of the headlamp module and the automatic switching between the high and low beams according to the detection signal of the photocontrol relay and the FM‑CW radar sensor; the battery provides power for the system; the reset circuit is connected to the main controller to provide reset Function. The invention is suitable for the intelligent control of the headlights of automobiles.
Description
Technical field
The present invention relates to field of automobile safety more particularly to a kind of vehicle front lighting light intelligent control systems.
Background technique
With the rapid development of science and technology, automobile already becomes one of most common mode of transportation of people's daily life trip.
The social owning amount of automobile is also being continuously increased, and at the same time, road traffic accident is also in rising trend.Wherein, due to automobile
The traffic accident of headlamp bring just occupy greatly, and become highway traffic safety accident major reason it
One.
It is usually all the rotary switch by manually adjusting long-and-short distant light for the control of vehicle head lamp in traditional technology
To realize；And since vehicle driver needs to operate direction toward contact while manipulating headlamp, it is not only troublesome in poeration, and
Therefore driver easily causes traffic accident because frequent hand-operating light be easy to cause dispersion attention.
Summary of the invention
The technical problems to be solved by the present invention are: proposing a kind of vehicle front lighting light intelligent control system, solve to adjust manually
It saves cumbersome existing for headlamp and there are problems that security risk.
The present invention solve above-mentioned technical problem the technical solution adopted is that:
A kind of vehicle front lighting light intelligent control system, comprising: master controller, battery, headlamp module, light-operated relay
Device, starts switch circuit and reset circuit at FM-CW radar sensor；It is described start switch circuit for vehicle igniting after to
Master controller inputs vehicle launch signal, triggering master controller work；The photorelay is for detecting external environment light intensity
Variation and input master controller；The FM-CW radar sensor be used for detect to always vehicle or between front truck in the same direction away from
From with opposite speed and input master controller；The master controller is according to the detection of photorelay and FM-CW radar sensor
Signal controls the brightness regulation of headlamp module and distance-light automatically switches；The battery provides power supply for system；It is described multiple
Position circuit connection master controller, for providing reset function.
As advanced optimizing, the master controller uses C51 single-chip microcontroller.
As advanced optimizing, the master controller is according to the detection signal of photorelay and FM-CW radar sensor
The brightness regulation and distance-light for controlling headlamp module automatically switch, and specifically include:
When the environmental light brightness of environment is dimmed, vehicle lamp brightness is improved；When the environmental light brightness of environment becomes strong
When, reduce vehicle lamp brightness；When the environmental light brightness of environment is less than the first luminance threshold, high beam is opened；When driving ring
When the environmental light brightness in border is greater than the second luminance threshold, high beam is closed；It is detected and opposite direction when by FM-CW radar sensor
When carrying out the distance of vehicle or front truck in the same direction less than distance threshold, high beam is switched to dipped headlight.
As advanced optimizing, the photorelay is arranged in windshield bottom position.
As advanced optimizing, the FM-CW radar sensor is arranged in headstock inside net.
The beneficial effects of the present invention are:
(1) according to the characteristic of photorelay, the light intensity variation of automobile external environment can be detected, further according to circuit theory
Signal transmitting is carried out, it is final to realize to the intelligentized control method of car light light and shade brightness, improve the illuminating position of traveling.When ambient light is shone
When intensity becomes strong suddenly, relay is attracted rapidly, and sends electric signal to master controller, arrives headlamp module through processing, in turn
Car light mode is quickly converted into dipped beam, preferably avoids driving a series of existing unexpected emergency cases on the way with this, improves
The safety of running car.
(2) FM-CW radar sensor comes the distance between vehicle or front truck in the same direction and opposite speed for detecting, and has detection
Stabilization, be affected by the external environment small, the high-precision feature of miniaturization, and when spacing is less than certain distance, system is automatically by distance light
It is switched to dipped beam, influences, dramatically increases so as to more accurately ensure meeting safety and minimize the driving on front truck in the same direction
Drive safety under night running and severe weather conditions；Structure is simple, using built-in installation, securely and reliably.
(3) using C51 single-chip microcontroller as master controller, has the characteristics that high speed, low-power consumption, low cost, anti-interference strong.It
Receive the detection signal from sensor, actuator is sent to after processed, to achieve the purpose that intelligent control.Due to control
Intelligence, manually control car light without driver, thus avoid operation triviality, also improve the safety of driving.
Detailed description of the invention
Fig. 1 is the car headlamp Structure of intelligent control system block diagram in the embodiment of the present invention；
Fig. 2 is photorelay schematic diagram；
Fig. 3 is car headlamp intelligent control system circuit structure chart；
Fig. 4 is sensor mounting location schematic diagram.
Specific embodiment
The present invention is directed to propose a kind of vehicle front lighting light intelligent control system, solution manually adjusts the existing operation of headlamp
It is cumbersome and there are problems that security risk.
Embodiment:
As shown in Figure 1, the vehicle front lighting light intelligent control system in the present embodiment includes: master controller, battery, preceding photograph
Lamp module, FM-CW radar sensor, starts switch circuit and reset circuit at photorelay；The circuit that starts switch is used for
Vehicle launch signal, triggering master controller work are inputted to master controller after vehicle igniting；The photorelay is for examining
It surveys the variation of external environment light intensity and inputs master controller；The FM-CW radar sensor for detect to always vehicle or with it is same
To the distance between front truck and opposite speed and input master controller；The master controller is according to photorelay and FM-CW thunder
Brightness regulation and distance-light up to the detection signal control headlamp module of sensor automatically switch；The battery mentions for system
Power supply source；The reset circuit connects master controller, for providing reset function, the stable operation of safeguards system.
It realizes circuit diagram as shown in figure 3, master controller uses stc12c5a60s2 single-chip microcontroller and reset circuit, crystal oscillator etc.
The single-chip minimum system of composition；FM-CW radar sensor is connected with the port P16 with P17 of single-chip microcontroller, photorelay and list
The port P00 with P01 of piece machine is connected.
Include photo resistance inside photorelay, uses photo resistance as photoswitch circuit, sensitivity is quite high.
As shown in Figure 2.When illumination is lower, the resistance value of photo resistance is very big, and VT is not turned on；With the increase of intensity of illumination, photosensitive electricity
The resistance value of resistance gradually becomes smaller, and when intensity of illumination reaches certain value, VT obtains enough base currents and is connected, and generates biggish
Collector current is attracted relay, and sends electric signal to single-chip microcontroller maincenter, arrives headlamp module through processing, and then quickly
Car light mode is converted into dipped beam, preferably avoids driving a series of existing unexpected emergency cases on the way with this, improves automobile
The safety of traveling.
Applied when on vehicle in the system, can by photorelay be arranged windshield bottom position (such as
Position 2 in Fig. 4), not only beautiful can ensure again normal detected environment light；Net is arranged in headstock in FM-CW radar sensor
Internal (position 1 in such as Fig. 4), photorelay and FM-CW radar sensor are connected with master controller 3.
The working principle of above system is: automobile on startup, opens ignition switch, can start headlamp intelligent control
System；The variation of photorelay detection external environment light intensity simultaneously inputs master controller；FM-CW radar sensor is detected to always
Vehicle or with the distance between front truck in the same direction and opposite speed and input master controller；Master controller is according to photorelay and FM-
The brightness regulation and distance-light of the detection signal control headlamp module of CW radar sensor automatically switch:
When the environmental light brightness of environment is dimmed, vehicle lamp brightness is improved；When the environmental light brightness of environment becomes strong
When, reduce vehicle lamp brightness；When the environmental light brightness of environment is less than the first luminance threshold (very dark), high beam is opened；When
When the environmental light brightness of environment is greater than the second luminance threshold (incandescent), high beam is closed；When pass through FM-CW radar sensor
When detecting at a distance to always vehicle or front truck in the same direction less than distance threshold (150-200m of such as national regulation), by high beam
It is switched to dipped headlight, to reduce the driving influence on other vehicle drivers, improves the safety of driving.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197489.9A CN109808587A (en) | 2019-03-15 | 2019-03-15 | An intelligent control system for automobile headlights |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910197489.9A CN109808587A (en) | 2019-03-15 | 2019-03-15 | An intelligent control system for automobile headlights |
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| CN109808587A true CN109808587A (en) | 2019-05-28 |
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| CN201910197489.9A Pending CN109808587A (en) | 2019-03-15 | 2019-03-15 | An intelligent control system for automobile headlights |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112423449A (en) * | 2020-12-14 | 2021-02-26 | 江苏文光车辆附件有限公司 | Combined headlamp with daytime lamp-dipped beam intelligent control device |
| CN112606756A (en) * | 2020-12-11 | 2021-04-06 | 东风汽车集团有限公司 | Automatic light control method and device and vehicle |
| CN113386656A (en) * | 2021-07-23 | 2021-09-14 | 中山易事达光电科技有限公司 | Intelligent control car lamp system and control method thereof |
| CN114407770A (en) * | 2022-02-21 | 2022-04-29 | 广州小鹏自动驾驶科技有限公司 | Vehicle light switching processing method, device and vehicle |
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| CN107264386A (en) * | 2017-05-23 | 2017-10-20 | 江苏大学 | A kind of automobile LED long-and-short distant light intelligent controlling device and control method |
| CN206690995U (en) * | 2017-04-26 | 2017-12-01 | 李伟坚 | Headlight for vehicle light light intelligent control system |
| CN209581292U (en) * | 2019-03-15 | 2019-11-05 | 攀枝花学院 | An intelligent control system for automobile headlights |
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2019
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Patent Citations (3)
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|---|---|---|---|---|
| CN206690995U (en) * | 2017-04-26 | 2017-12-01 | 李伟坚 | Headlight for vehicle light light intelligent control system |
| CN107264386A (en) * | 2017-05-23 | 2017-10-20 | 江苏大学 | A kind of automobile LED long-and-short distant light intelligent controlling device and control method |
| CN209581292U (en) * | 2019-03-15 | 2019-11-05 | 攀枝花学院 | An intelligent control system for automobile headlights |
Non-Patent Citations (2)
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| 卢钦民，管素圣: "电子电路实验方法", 31 October 1991, 高等教育出版社, pages: 164 * |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112606756A (en) * | 2020-12-11 | 2021-04-06 | 东风汽车集团有限公司 | Automatic light control method and device and vehicle |
| CN112423449A (en) * | 2020-12-14 | 2021-02-26 | 江苏文光车辆附件有限公司 | Combined headlamp with daytime lamp-dipped beam intelligent control device |
| CN113386656A (en) * | 2021-07-23 | 2021-09-14 | 中山易事达光电科技有限公司 | Intelligent control car lamp system and control method thereof |
| CN113386656B (en) * | 2021-07-23 | 2022-10-14 | 中山易事达光电科技有限公司 | Intelligent control vehicle lamp system and control method thereof |
| CN114407770A (en) * | 2022-02-21 | 2022-04-29 | 广州小鹏自动驾驶科技有限公司 | Vehicle light switching processing method, device and vehicle |
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