CN112550127A - Self-adaptive high beam automobile headlamp system with anti-glare and variable color temperature - Google Patents
Self-adaptive high beam automobile headlamp system with anti-glare and variable color temperature Download PDFInfo
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- CN112550127A CN112550127A CN202110039504.4A CN202110039504A CN112550127A CN 112550127 A CN112550127 A CN 112550127A CN 202110039504 A CN202110039504 A CN 202110039504A CN 112550127 A CN112550127 A CN 112550127A
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- led
- high beam
- color temperature
- glare
- light source
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
- B60Q1/1415—Dimming circuits
- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
- B60Q1/143—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic combined with another condition, e.g. using vehicle recognition from camera images or activation of wipers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/06—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle
- B60Q1/08—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically
- B60Q1/085—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights adjustable, e.g. remotely-controlled from inside vehicle automatically due to special conditions, e.g. adverse weather, type of road, badly illuminated road signs or potential dangers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q11/00—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00
- B60Q11/005—Arrangement of monitoring devices for devices provided for in groups B60Q1/00 - B60Q9/00 for lighting devices, e.g. indicating if lamps are burning or not
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/054—Variable non-standard intensity, i.e. emission of various beam intensities different from standard intensities, e.g. continuous or stepped transitions of intensity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/30—Indexing codes relating to the vehicle environment
- B60Q2300/31—Atmospheric conditions
- B60Q2300/312—Adverse weather
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/42—Indexing codes relating to other road users or special conditions oncoming vehicle
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to an anti-dazzle variable color temperature self-adaptive high beam automobile headlamp system, which comprises an automobile front section sensing module, a receiving module and an LED optical system module, wherein the automobile front section sensing module comprises a laser radar unit, a camera unit and a sensor unit; the external front-end sensing module sends the information of the vehicle to the CAN transmission system in the form of a control message, the information is transmitted to the LED control module and the PWM control module through the processing of the MCU unit, the LED control module and the PWM control module are respectively connected with the LED array light source, and the LED array light source is connected with the LED shaping system. The invention can intelligently distribute light to the automobile head lamp according to the information obtained by the external sensor of the automobile, thereby reducing the occurrence of traffic accidents.
Description
Technical Field
The invention relates to the technical field of automobile illumination, in particular to an anti-dazzle variable color temperature self-adaptive high beam automobile headlamp system.
Background
The development of the LED brings great changes to the automobile industry, in the field of modern automobile lamp industry, LED design drives innovation and market expansion of LED automobile headlamps, and the LED technology enables automobile external illumination to become flexible in the front shape of an automobile, but technical obstacles such as low color rendering index and low junction temperature of the LED restrict further expansion of the LED in the field of automobile illumination.
The most important factor for protecting and identifying the target under a low visual angle is the spectral satisfaction, which is directly related to human perception and is a key parameter for night driving, so that the driving safety of drivers and pedestrians can be ensured. The visual information of night drivers depends on the brightness information related to the light intensity and spectral quality during driving.
In the traditional automobile field, the automobile headlamp is still a mechanical lighting unit, can illuminate under the condition of weak light, generates far and near light, and the light beam, the illumination intensity, the illumination range, the color temperature and the spectrum quality are fixed, so that intelligent light distribution can not be carried out according to the actual condition.
Most of the existing automobile headlamps are based on the traditional high-beam and low-beam light distribution technology, intelligent light distribution cannot be carried out, functions such as anti-dazzling of opposite driving are achieved, the penetrating power is weak due to color temperature in severe weather, and traffic accidents are easy to happen.
Disclosure of Invention
The invention aims to overcome the defects and provide an anti-dazzle variable-color-temperature self-adaptive high beam automobile headlamp system, which can intelligently distribute light to automobile headlamps according to information obtained by an external sensor of an automobile and reduce the occurrence of traffic accidents.
The purpose of the invention is realized as follows:
an anti-dazzle self-adaptive high beam automobile headlamp system with variable color temperature comprises an automobile front sensing module, a receiving module and an LED optical system module, wherein the automobile front sensing module comprises a laser radar unit, a camera unit and a sensor unit; the external front-end sensing module sends the information of the vehicle to the CAN transmission system in the form of a control message, the information is transmitted to the LED control module and the PWM control module through the processing of the MCU unit, the LED control module and the PWM control module are respectively connected with the LED array light source, and the LED array light source is connected with the LED shaping system.
Further, the LED array light source comprises 7 rows of LED light sources which are continuously arranged in parallel, and the left and right adjacent LEDs are on the same horizontal line.
Further, the LED shaping system comprises a first optical guiding lens and a second projection lens which are arranged in front of and behind the first optical guiding lens, and the first optical guiding lens collects light emitted by the LED array light source and transmits the light to the second projection lens.
Furthermore, the distance between the LED light sources of each LED row is 1-5 mm.
Further, the light distribution of the LED array light source is that the LED chip is collimated by the conical light collector and secondarily condensed by the condenser lens to form the required high beam light type of the automobile headlamp.
Further, each LED contains a plurality of RGB three-color lamp beads.
Further, each LED may control 256 levels of dimming and receive upcoming vehicle data.
Furthermore, the MCU unit is integrated with various databases of severe weather collected according to the driving environment.
Compared with the prior art, the invention has the beneficial effects that:
(1) the MCU system integrates various databases of severe weather collected according to driving environment, obtains the optimal color temperature of the corresponding weather at that time according to the comparison of the real-time weather obtained by the sensor and the databases, and achieves the output effect of different color temperatures by controlling PWM (pulse width modulation) waves; under the conditions of severe weather, rain, snow and yellow dust, each LED array can control 256-level dimming and receive upcoming vehicle data, the color temperature of the high beam can be changed in real time according to the data of the vehicle and the weather where the high beam is located, under the normal condition, the color temperature of the high beam is 6000K, and the color temperature of the high beam under the weather of rainy weather obstacles is 3000K, so that the color temperature can be changed;
(2) according to the invention, the intelligent light distribution is carried out on the automobile headlamp according to the information obtained by the external sensor of the automobile, so that the anti-dazzling function of the opposite-direction running is realized, and the occurrence of traffic accidents is reduced;
(3) in the conventional automobile headlamp, if a single LED is degraded or even damaged under unforeseen conditions, the whole headlamp must be replaced according to law, the service life of the modern LED headlamp is longer than the working time of a vehicle, which is unreasonable in economy and unsustainable in environment, the LED array adopted by the invention is characterized in that each LED contains a plurality of RGB (red, green and blue) beads, when a certain bead is damaged or light attenuation is generated, a current detection system transmits current abnormal information to an MCU (microprogrammed control unit) module, the MCU module repairs the region by controlling the brightness of the surrounding LEDs, the LEDs generally work at about 50 percent of average power, the LED power is increased without damaging the LEDs, and the matrix type LED self-adaptive headlamp can self-repair by controlling other LEDs, for example, the LEDs around the damaged or light attenuation LEDs are increased.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic light distribution diagram of the LED array light source of the present invention.
FIG. 3 is a schematic structural diagram of a projection lens according to the present invention.
Fig. 4 is a schematic layout view of the LED array light source of the present invention.
Fig. 5 is a schematic diagram of high beam simulation according to the present invention.
Fig. 6 is a schematic view of an anti-glare high beam according to the present invention.
Wherein:
the device comprises a laser radar unit 1, a camera unit 2, a sensor unit 3, a CAN transmission system 4, an MCU unit 5, an LED control system 6, a PWM control system 7, an LED array light source 8 and an LED shaping system 9.
Detailed Description
For a better understanding of the technical aspects of the present invention, reference will now be made in detail to the accompanying drawings. It should be understood that the following specific examples are not intended to limit the embodiments of the present invention, but are merely exemplary embodiments of the present invention. It should be noted that the description of the positional relationship of the components, such as the component a is located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1:
referring to fig. 1-4, fig. 1 is a schematic structural diagram of an anti-glare variable color temperature adaptive high beam vehicle headlamp system. As shown in the figure, the anti-dazzle variable color temperature self-adaptive high beam automobile headlamp system comprises an automobile front sensing module, a receiving module and an LED optical system module, wherein the automobile front sensing module comprises a laser radar unit 1, a camera unit 2 and a sensor unit 3, the receiving module comprises a CAN transmission system 4 and an MCU unit 5, and the LED optical system module comprises an LED control system 6, a PWM control system 7, an LED array light source 8 and an LED shaping system 9.
The external front-end sensing module is arranged at the front end outside the automobile, the external front-end sensing module sends information of the automobile to the CAN transmission system 4 in the form of control messages, the information is transmitted to the LED control module 6 and the PWM control module 7 through the processing of the MCU unit 5, the LED control module 6 and the PWM control module 7 are respectively connected with the LED array light source 8, and the LED array light source 8 is connected with the LED shaping system 9.
Referring to fig. 2 and 4, the LED array light source 8 includes 7 rows of LED light sources arranged in parallel and continuously, the distance between each two LED rows is 2mm, and the left and right adjacent LEDs are on the same horizontal line. The light distribution of the LED array light source 8 is that the LED chip is collimated by the conical light collector and secondarily condensed by the condenser lens to form the required high beam light type of the automobile headlamp. Through the simulator and 16 channel LDM, each LED can control 256 levels of dimming and receive upcoming vehicle data.
The LED shaping system 9 comprises a first optical guide lens and a second projection lens which are arranged in front and back, wherein the first optical guide lens collects the light emitted by the LED array light source 8 and transmits the light to the second projection lens; the LED shaping system 9 shapes the LED beam into a light pattern distribution specified by the national standard, and mainly functions to shape the light twice and output a desired light pattern.
Referring to fig. 3, the projection lens is an optical light distribution lens according to the prior art, and the formula of the light distribution lens is as follows:
and comparing the optimized and changed values of k and r with the simulation result on the detection screen, and obtaining the optimal model of the light distribution lens through an optimization function.
Referring to fig. 5 and 6, the high beam is totally divided into 7 illumination areas, the 7 illumination areas are independent from each other and do not generate crosstalk, and when the sensor unit 3 of the external front sensing module detects an oncoming vehicle, the corresponding area can be intelligently turned off, so that the oncoming vehicle does not generate crosstalk. The LED control module 6 is connected with the LED array light source 8, and when the oncoming vehicle is detected, the LED control module 6 closes the LED in the corresponding direction, so that no light beam is emitted in the oncoming vehicle direction, and no glare is generated to the driver of the oncoming vehicle.
Every LED contains the lamp pearl of the three kinds of colours of a plurality of RGB, MCU unit 5 is integrated with the various databases of the bad weather that gather according to driving environment, compares with the database according to the real-time weather that outside anterior segment perception module obtained, obtains the best RGB ratio of corresponding weather at that time, controls the output effect that the PWM wave reaches different colour temperatures through PWM control module 7. The generation of light beam colour temperature derives from the ratio of the lamp beads of a plurality of RGB three colors, the ratio of the lamp beads of the RGB three colors is mainly related to the power of each lamp bead, the change of the power of each lamp bead can be realized by controlling the corresponding PWM wave, thereby influencing the ratio of the lamp beads of the RGB three colors and achieving the purpose of changing the colour temperature.
Under the bad weather condition of rain, snow, yellow dirt, 256 levels of dimming and the upcoming vehicle data of receipt can be controlled to every LED, and the distance, position and the translation rate that come the car promptly can be according to the data of vehicle and the weather that is located the colour temperature of transform high beam in real time, and under normal conditions, the colour temperature of high beam is 6000K, and the high beam colour temperature under the rainy day obstacle weather is 3000K.
Example 2:
the difference between this embodiment 2 and embodiment 1 is that the LEDs of the LED array light source 8 of this embodiment 2 are LED light sources with variable color temperatures, the MCU unit 5 integrates various databases of severe weather collected according to driving environment, obtains the best color temperature of the corresponding weather at that time by comparing the real-time weather obtained by the sensor unit 3 with the databases, and controls the PWM wave to achieve the output effect of different color temperatures through the PWM control module 7.
The above is only a specific application example of the present invention, and the protection scope of the present invention is not limited in any way. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides an anti-dazzle mesh variable colour temperature's self-adaptation distance light vehicle headlamps system which characterized in that: the automobile front sensing module comprises a laser radar unit (1), a camera unit (2) and a sensor unit (3), the receiving module comprises a CAN transmission system (4) and an MCU unit (5), and the LED optical system module comprises an LED control system (6), a PWM control system (7), an LED array light source (8) and an LED shaping system (9);
the external front-section sensing module sends information of the vehicle to the CAN transmission system (4) in the form of a control message, the information is transmitted to the LED control module (6) and the PWM control module (7) through the processing of the MCU unit (5), the LED control module (6) and the PWM control module (7) are respectively connected with the LED array light source (8), and the LED array light source (8) is connected with the LED shaping system (9).
2. The adaptive high beam anti-glare variable color temperature automotive headlamp system of claim 1, wherein: the LED array light source (8) comprises 7 rows of LED light sources which are continuously arranged in parallel, and the left and right adjacent LEDs are on the same horizontal line.
3. An anti-glare variable color temperature adaptive high beam vehicle headlamp system according to claim 2, wherein: the LED shaping system (9) comprises a first optical guiding lens and a second projection lens which are arranged in front of and behind, wherein the first optical guiding lens collects light emitted by the LED array light source (8) and transmits the light to the second projection lens.
4. An anti-glare variable color temperature adaptive high beam vehicle headlamp system according to claim 2, wherein: the distance between the LED light sources of each LED row is 1-5 mm.
5. The adaptive high beam anti-glare variable color temperature automotive headlamp system of claim 1, wherein: the light distribution of the LED array light source (8) is that an LED chip is collimated by a conical light collector and secondarily condensed by a condensing lens to form a required high beam light type of the automobile headlamp.
6. The adaptive high beam anti-glare variable color temperature automotive headlamp system of claim 1, wherein: each LED contains a plurality of RGB three-color lamp beads.
7. The adaptive high beam anti-glare variable color temperature automotive headlamp system of claim 1, wherein: each LED may control 256 levels of dimming and receive upcoming vehicle data.
8. The adaptive high beam anti-glare variable color temperature automotive headlamp system of claim 1, wherein: the MCU unit (5) is integrated with various databases of severe weather collected according to the driving environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039504.4A CN112550127A (en) | 2021-01-13 | 2021-01-13 | Self-adaptive high beam automobile headlamp system with anti-glare and variable color temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110039504.4A CN112550127A (en) | 2021-01-13 | 2021-01-13 | Self-adaptive high beam automobile headlamp system with anti-glare and variable color temperature |
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| Publication Number | Publication Date |
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| CN112550127A true CN112550127A (en) | 2021-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110039504.4A Withdrawn CN112550127A (en) | 2021-01-13 | 2021-01-13 | Self-adaptive high beam automobile headlamp system with anti-glare and variable color temperature |
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| CN (1) | CN112550127A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204994014U (en) * | 2015-10-09 | 2016-01-20 | 江苏新安电器有限公司 | Intelligence car light control system based on space light modulation |
| CN105459885A (en) * | 2014-09-30 | 2016-04-06 | 富士重工业株式会社 | Vehicle headlight device |
| CN105889840A (en) * | 2016-06-08 | 2016-08-24 | 广东雷腾智能光电有限公司 | Self-adaptive high-low-beam integrated LED multi-module headlamp |
| CN109263446A (en) * | 2018-11-09 | 2019-01-25 | 广东工业大学 | A kind of intelligence windshield control system and its control method |
| CN111251985A (en) * | 2020-02-28 | 2020-06-09 | 华域视觉科技(上海)有限公司 | Rear vehicle high beam closing reminding system and method and vehicle |
-
2021
- 2021-01-13 CN CN202110039504.4A patent/CN112550127A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459885A (en) * | 2014-09-30 | 2016-04-06 | 富士重工业株式会社 | Vehicle headlight device |
| CN204994014U (en) * | 2015-10-09 | 2016-01-20 | 江苏新安电器有限公司 | Intelligence car light control system based on space light modulation |
| CN105889840A (en) * | 2016-06-08 | 2016-08-24 | 广东雷腾智能光电有限公司 | Self-adaptive high-low-beam integrated LED multi-module headlamp |
| CN109263446A (en) * | 2018-11-09 | 2019-01-25 | 广东工业大学 | A kind of intelligence windshield control system and its control method |
| CN111251985A (en) * | 2020-02-28 | 2020-06-09 | 华域视觉科技(上海)有限公司 | Rear vehicle high beam closing reminding system and method and vehicle |
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Application publication date: 20210326 |
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