CN115214450A - Tracking Adjustable Vehicle Headlight Controls - Google Patents

Abstract

The invention discloses a tracking adjustment type vehicle headlight control device, which is installed in a vehicle and includes a control unit, an illumination unit and a detection unit that are electrically connected to each other; the detection unit includes a first detection unit and a second detection unit, and the detection unit includes a first detection unit and a second detection unit. After the first detection unit detects the obstacle, it drives the second detection unit to move, and the second detection unit acquires the relevant information and transmits it to the control unit; the control unit generates the lighting instruction after receiving the relevant signal, and transmits the lighting instruction to the control unit. The lighting unit: after receiving the lighting instruction, the lighting unit irradiates the light according to the demand of the lighting instruction. The present invention can adjust the lighting of the obstacles appearing in front of the vehicle lights according to the motion state of the vehicle, so as to achieve the purpose of safe driving.

Description

Tracking Adjustable Vehicle Headlight Controls

technical field

The invention relates to the field of lighting control, in particular to a tracking adjustment type vehicle headlight control system.

Background technique

Headlights are an important component of auto parts. They not only look beautiful, but are also very convenient to use. Especially for new energy vehicles, the lights used are LED headlights or xenon headlights to meet the needs of daily use. .

For vehicles, when starting or driving, the lights will be turned on to meet the lighting needs in the case of insufficient light. In order to enable the driver to fully observe the situation in front of the vehicle, the light of the lights used is generally It is at a strong level, but in the actual use process, after the car lights illuminate the pedestrians, the light of the car lights will cause strong light stimulation to the pedestrians' eyes, thus causing certain damage to the passers-by. It will also cause certain hidden dangers to driving and driving safety. Therefore, how to solve this problem is the dilemma we are facing now.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the above technologies, the present invention provides a tracking adjustment vehicle headlight control system, which can adjust the lights of obstacles in front of the headlights according to the motion state of the vehicle, so as to achieve the purpose of safe driving.

In order to achieve the above purpose, the present invention provides a tracking adjustment type vehicle headlight control device, which is installed in a vehicle; it is characterized in that it includes a control unit, an illumination unit and a detection unit that are electrically connected to each other;

The detection unit includes a first detection unit and a second detection unit, the first detection unit drives the second detection unit to move after detecting an obstacle, and the second detection unit acquires relevant information and transmits it to the control unit;

The control unit generates a lighting instruction after receiving the relevant signal, and transmits the lighting instruction to the lighting unit;

After receiving the lighting instruction, the lighting unit irradiates the light according to the requirements of the lighting instruction.

Preferably, the first detection unit detects whether there is an obstacle at the front end of the vehicle, and when an obstacle is found, the first detection unit controls the second detection unit to work, and the second detection unit acquires the obstacle The overall contour information and the distance information between the obstacle and the vehicle are transmitted to the control unit.

Preferably, the first detection unit and the second detection unit use one or more combinations of laser detection, infrared detection, and microwave detection.

Preferably, the detection unit is further provided with a division module, the division module divides the vehicle headlights into a plurality of areas, each area is provided with a second detection unit, and the second detection unit receives The reflected signal is used to collect the contour information and distance of the obstacle.

Preferably, the lighting unit includes a light-emitting module and a minimum lighting unit, each minimum lighting unit is set independently, a plurality of independent minimum lighting units are arranged to form a light-emitting surface, and the position of each minimum lighting unit in the light-emitting surface corresponds to Unique coordinates, and the light-emitting module is provided with a control area adapted to the coordinates of each minimum lighting unit.

Preferably, the minimum lighting unit is composed of various lamp beads, which emit light of different colors or different intensities under the control of the light-emitting module.

Preferably, the control unit includes an area module and an early warning module. After receiving the relevant information of the second detection unit, it processes the information in the following manner:

The contour information is transmitted to the area module, and after the area module receives the contour information of the obstacle, the contour information is converted and calculated, and finally the coordinate information suitable for the lighting unit is obtained;

After receiving the distance information, the early warning module compares the distance information with the built-in safety distance, and obtains different lighting control instructions according to different comparison information.

Preferably, after the area module receives different contour information and calculates the appropriate coordinate information, the motion trajectory of the obstacle is calculated according to the front and rear changes of the coordinates.

Preferably, the control unit is further provided with a vehicle sense module, the vehicle sense module obtains the driving state of the vehicle, judges whether the vehicle is in the starting stage or the driving state according to the vehicle speed, and sends the detection unit according to different states. different control commands.

The beneficial effects of the present invention are: compared with the prior art, the tracking adjustment type vehicle headlight control system provided by the present invention firstly judges whether there is an obstacle in front of the vehicle by using the detection unit, and if so, calculates the distance between the obstacle and the vehicle. The distance of the obstacle is collected, and the outer contour of the obstacle is collected, so that during the irradiation process, the lighting unit is controlled by the control unit to perform different styles of lighting, so as to avoid the direct illumination of the lighting unit on the obstacle and affect the obstacle; In addition, light warnings of different colors are carried out for different distances between obstacles and vehicles, thereby reminding drivers to pay attention to driving safety.

Description of drawings

Fig. 1 is the unit connection schematic diagram of the application;

FIG. 2 is a schematic diagram of the workflow of the present application.

Detailed ways

In order to express the present invention more clearly, the present invention will be further described below with reference to the accompanying drawings and specific embodiments. Of course, the technical solutions of the present invention are not limited to this, and improvements made to the present application without creative work are all within the scope of the present invention. the scope of protection of the invention.

Please refer to FIG. 1 and FIG. 2, the present invention discloses a tracking adjustment type vehicle headlight control system, which is installed in the vehicle; it includes a control unit, a lighting unit and a detection unit that are electrically connected to each other; the detection unit includes a first detection unit and the second detection unit, the first detection unit drives the second detection unit to move after detecting the obstacle, and the second detection unit acquires the relevant information and transmits it to the control unit; the control unit generates the lighting instruction after receiving the relevant signal, And transmit the lighting instruction to the lighting unit; after the lighting unit receives the lighting instruction, it irradiates the light according to the requirement of the lighting instruction. In this embodiment, two detection units are firstly provided, wherein the first detection unit is used as a low-power startup unit, which is always in an on state, and will be used when and only when an obstacle is detected by the first detection unit. The second detection unit performs subsequent detection, which can effectively reduce the power consumption of the entire system; when the first detection unit detects an obstacle ahead, it starts the second unit to detect the obstacle, and obtains the difference between the two. The distance and the outer contour of the obstacle are converted and corresponded to the coordinate points on the lighting unit, so that when the lights are illuminated, the lamp beads in the coordinate area on the lighting unit corresponding to the obstacle are different. Lighting, which avoids direct exposure to obstacles, and uses light of different colors to warn according to the distance between the obstacle and the vehicle. The most important thing is that according to the running trend of the vehicle or the movement trend of the obstacle, it can effectively Adjust the light-emitting area of the car lights, so as to reduce the light damage to obstacles on the premise of ensuring driving safety, so as to achieve the effect of killing two birds with one stone.

In order to achieve the above purpose, the first detection unit detects whether there is an obstacle at the front end of the vehicle, and when an obstacle is found, the first detection unit controls the second detection unit to work, and the second detection unit obtains the overall outline information of the obstacle and the distance information between the obstacle and the vehicle, and transmit this information to the control unit; one or more combinations of laser detection, infrared detection, and microwave detection adopted by the first detection unit and the second detection unit . In this embodiment, the first detection unit can be an infrared detection unit, and the infrared detection unit is used to determine whether the obstacle is a living thing; It can be detected as an obstacle by the first detection unit, which is convenient for subsequent information collection of the obstacle. The second sensor can be an infrared sensor or a laser sensor, so as to facilitate the collection of information on the obstacle.

There is also a division module in the detection unit, which divides the vehicle headlights into a plurality of areas, and each area is provided with a second detection unit. The second detection unit detects obstacles by receiving reflected signals within a period of time. The contour information and distance are collected. In this embodiment, the vehicle headlights are divided into multiple areas, and each area is provided with a second detection unit, so that the second detection units in different areas can be used to detect the outer contour information of obstacles. collection, so as to ensure the accuracy and stability of information collection, and avoid the failure of the entire information collection system to work due to a problem with a second detection unit. During use, the second detection unit emits laser or infrared rays. By receiving the laser or infrared light emitted by the obstacle, collecting the feedback signals in a period of time, and considering these signals as the feedback signal of the obstacle, so as to obtain which area the obstacle is in, so as to obtain the external contour information of the obstacle. , in the specific use process, this time period is generally set within 1 microsecond, that is, the time t and t+1 microseconds when the feedback signal of the obstacle is received for the first time is counted as the feedback of the obstacle. Signal, the reason for this setting is because the obstacle is not a plane object. If it is a plane object, the time to receive the feedback signal of the obstacle should be the same. It is also considering the actual shape of the obstacle, so it is set at a shorter The feedback signal in the time period is regarded as the feedback signal of the obstacle, which makes the collection of information on the outer contour of the obstacle more accurate. Special attention is that since the speed of the laser or infrared rays reaches the speed of light, the time of this time period is It should not be too long, otherwise the signal fed back by objects other than the obstacle will also be regarded as the signal of the obstacle, thus providing a wrong area for the collection of the contour information outside the obstacle.

The lighting unit includes a light-emitting module and a minimum lighting unit, each minimum lighting unit is set independently, a plurality of independent minimum lighting units are arranged to form a light-emitting surface, and the position of each minimum lighting unit in the light-emitting surface corresponds to a unique coordinate, and emits light. The module is provided with a control area adapted to the coordinates of each minimum lighting unit, and the minimum lighting unit is a variety of lamp beads, which emit light of different colors or different brightness under the control of the light-emitting module. In this embodiment, the light-emitting module is used to adjust the on-off and light-emitting color of the lamp beads to meet different usage requirements, and each minimum lighting unit is set independently, so that each minimum lighting unit can be individually controlled , in this way, the light-emitting area of the entire light-emitting surface can be controlled, so that the contour area facing the obstacle does not emit light, while other areas emit light, so as to ensure the driver's driving safety under the premise of avoiding direct light on the obstacle; of course, in order to ensure The minimum lighting unit can work normally, and the lamp beads in the minimum lighting unit can be replaced with a light board composed of multiple micro bulbs, so as to better realize lighting and meet the needs of use.

The control unit includes an area module and an early warning module. After receiving the relevant information of the second detection unit, it processes the information. The processing method is as follows: the outline information is transmitted to the area module, and after the area module receives the outline information of the obstacle, The contour information is converted and calculated, and finally the coordinate information suitable for the lighting unit is obtained; after receiving the distance information, the early warning module compares the distance information with the built-in safety distance, and obtains different lighting control instructions according to different comparison information; After the module receives different contour information and calculates the adapted coordinate information, it calculates the motion trajectory of the obstacle according to the front and rear changes of the coordinates. In the specific implementation process, for example, the lamp beads on the light-emitting module are arranged in a rectangular light-emitting surface according to 22*48; the relative position of each lamp bead in the rectangular light-emitting surface can be expressed as (1,1), ( 1,2), (2,1), ... (22, 48); after the second unit collects the feedback signal of the obstacle, it transmits the feedback signal to the area module of the control unit, and the area module according to the second control unit The received external contour information of the obstacle is calculated to obtain the coordinate value corresponding to the obstacle on the light-emitting module, and the coordinate values of all the external contours are connected to form a gray area, and then the gray area is used to form a When the coordinate areas overlap, you can get which lamp beads are located in the gray area, and then send instruction information to the light-emitting module, so that all lamp beads located in the gray area are turned off, and all lamp beads located outside the gray area are turned on, thus ensuring no Direct illumination will be formed on the obstacle; when the position between the obstacle and the vehicle changes (whether it is the movement of the obstacle or the movement of the vehicle), the second detection unit continues to work to determine the direction of movement of the obstacle, and along the Simulate the continuous motion state of obstacles in this direction, and control different lamp beads to light up or turn off, thus forming a motion trajectory, which is convenient for the driver to adjust the position of the vehicle; more importantly, an early warning module is also provided to provide early warning The module gives different degrees of early warning according to the distance between the obstacle and the vehicle. For example, when the distance between the two is less than 2 meters, the early warning module controls the light-emitting module to make the lamp bead emit red light to warn the driver and inform the driver to pay attention to the collision. If it is 2-5 meters away, it will emit blue light to tell the driver to pay attention to avoidance. If it is 5 meters away, only white light will be emitted for lighting; the driver will be reminded through lights of different colors to avoid obstacles and the driver. collision.

The control unit is also provided with a vehicle sense module, which obtains the driving state of the vehicle, determines whether the vehicle is in the starting stage or the driving state, and performs different instruction control on the detection unit according to different states. In this embodiment, when the vehicle is in different states, the reaction time given to the driver is different. For example, when the vehicle is just starting, the speed of the vehicle is relatively small. When there is an obstacle, the second detection unit can only detect the obstacle. The speed of the object is used to control the light, but when the vehicle is in a driving state, the speed of the vehicle itself needs to be considered, so it is necessary to combine the speed of the obstacle and the vehicle itself to adjust the light.

The present invention is described below with specific implementation process:

For example, when the vehicle is in the parking lot and is just starting, there are pedestrians passing by in front of the vehicle. If the lights are fully turned on, the strong light will instantly illuminate the eyes of the pedestrians, resulting in short-term vision loss. In order to avoid this When the first detection unit detects an obstacle (pedestrian) after the vehicle starts, it drives the second unit to move, and the second unit collects the outer contour information of the obstacle and transmits the information to the control unit. , the control unit transmits the light-emitting instruction to the light-emitting module according to the area where the outer contour information of the obstacle is located and the light-emitting area of the lamp bead, and the light-emitting module controls the lamp bead to emit light, so that the lamp bead in the obstacle area does not emit light , the lamp beads located outside the target area emit light, thus avoiding the damage caused by the direct exposure of the lamp beads, and at the same time, the distance between the pedestrian and the vehicle is detected, so as to ensure that the pedestrian and the vehicle are in a safe and harmless environment.

The above disclosures are only a few specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims (9)

1. A tracking adjustment type on-board headlight control device, installed in a vehicle; it is characterized in that, it comprises a control unit, a lighting unit and a detection unit that are electrically connected to each other; The detection unit includes a first detection unit and a second detection unit, the first detection unit drives the second detection unit to move after detecting an obstacle, and the second detection unit acquires relevant information and transmits it to the control unit; The control unit generates a lighting instruction after receiving the relevant signal, and transmits the lighting instruction to the lighting unit; After receiving the lighting instruction, the lighting unit irradiates the light according to the requirements of the lighting instruction. 2 . The tracking adjustment type vehicle headlight control device according to claim 1 , wherein the first detection unit detects whether there is an obstacle at the front end of the vehicle, and when an obstacle is found, the first detection unit The second detection unit is controlled to work, the second detection unit acquires the overall outline information of the obstacle and the distance information between the obstacle and the vehicle, and transmits the information to the control unit. 3 . The tracking adjustment type vehicle headlight control device according to claim 2 , wherein the first detection unit and the second detection unit adopt one or more of laser detection, infrared detection, and microwave detection. 4 . combination. 4 . The tracking adjustment type vehicle headlight control system according to claim 2 , wherein the detection unit is further provided with a division module, and the division module divides the vehicle headlight into a plurality of areas, and each area A second detection unit is provided inside, and the second detection unit collects the contour information and distance of obstacles by receiving reflected signals within a period of time. 5 . The tracking adjustment type vehicle headlight control device according to claim 1 , wherein the lighting unit comprises a light-emitting module and a minimum lighting unit, each minimum lighting unit is independently set, and a plurality of independent minimum lighting units A light-emitting surface is formed by arranging, and the position of each minimum lighting unit in the light-emitting surface corresponds to a unique coordinate, and the light-emitting module is provided with a control area adapted to the coordinates of each minimum lighting unit. 6 . The tracking-adjustable vehicle headlight control device according to claim 5 , wherein the minimum lighting unit is composed of a variety of lamp beads, which emit lights of different colors or different intensities under the control of the light-emitting module. 7 . light. 7 . The tracking-adjustment vehicle headlight control device according to claim 1 , wherein the control unit comprises an area module and an early warning module, and after receiving the relevant information of the second detection unit, it processes the information. 8 . , the processing method is as follows: The contour information is transmitted to the area module, and after the area module receives the contour information of the obstacle, the contour information is converted and calculated, and finally the coordinate information suitable for the lighting unit is obtained; After receiving the distance information, the early warning module compares the distance information with the built-in safety distance, and obtains different lighting control instructions according to different comparison information. 8 . The tracking-adjustable vehicle headlight control device according to claim 7 , wherein when the area module receives different contour information and calculates the adapted coordinate information, the obstacle is calculated according to the front and rear changes of the coordinates. 9 . trajectory of the object. 9 . The tracking adjustment type vehicle headlight control device according to claim 1 , wherein a vehicle sense module is further provided in the control unit, and the vehicle sense module obtains the driving state of the vehicle, and judges the vehicle according to the speed of the vehicle. 10 . Whether the vehicle is in the starting stage or in the driving state, and according to different states, different control commands are issued to the detection unit.

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