Tracking adjustment type vehicle headlight control device

Abstract

The present invention discloses a tracking and adjustment type vehicle headlight control device, which is installed in a vehicle and 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 a second detection unit, and the first detection unit drives the second detection unit to move after detecting an obstacle, and the second detection unit obtains 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. The present invention can adjust the light to the obstacle appearing in front of the headlight according to the movement state of the vehicle, so as to achieve the purpose of safe driving.

Description

Technical Field

[0001] The present invention relates to the field of lighting control, and in particular to a tracking and adjusting vehicle headlight control system. Background Art

[0002] Headlights are an important component of auto parts. They not only look beautiful and elegant, but are also easy to use. Especially for new energy vehicles, the headlights used are LED headlights or xenon headlights to meet daily use needs.

[0003] For vehicles, when starting or driving, they will turn on the headlights to meet the lighting needs in insufficient light conditions. In order to enable the driver to fully observe the situation in front of the vehicle, the light of the headlights used is generally at a relatively strong level. However, in actual use, after the headlights shine on pedestrians, the headlights will cause strong light stimulation to the pedestrians' eyes, thereby causing certain damage to pedestrians. If the headlights are not used, it will 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

[0004] In order to address the deficiencies in the above technologies, the present invention provides a tracking and adjusting vehicle headlight control system, which can adjust the headlights according to the vehicle's motion state to obstacles in front of the headlights, thereby achieving the purpose of safe driving.

[0005] To achieve the above-mentioned object, the present invention provides a tracking and adjusting vehicle headlight control device installed in a vehicle; characterized in that it includes a control unit, a lighting unit and a detection unit electrically connected to each other;

[0006] The detection unit includes a first detection unit and a second detection unit. After the first detection unit detects an obstacle, it drives the second detection unit to move. The second detection unit obtains relevant information and transmits it to the control unit.

[0007] The control unit generates a lighting instruction after receiving the relevant signal and transmits the lighting instruction to the lighting unit;

[0008] After receiving the lighting instruction, the lighting unit performs lighting according to the requirements of the lighting instruction.

[0009] Preferably, the first detection unit detects whether there is an obstacle in front of the vehicle. When an obstacle is found, the first detection unit controls the second detection unit to work. The second detection unit obtains the overall contour information of the obstacle and the distance information between the obstacle and the vehicle, and transmits this information to the control unit.

[0010] Preferably, the first detection unit and the second detection unit adopt one or more combinations of laser detection, infrared detection, and microwave detection.

[0011] Preferably, the detection unit is further provided with a division module, which divides the vehicle headlights into multiple areas. A second detection unit is provided in each area, and the second detection unit collects the contour information and distance of the obstacle by receiving the reflected signal within a period of time.

[0012] Preferably, the lighting unit includes a light-emitting module and a minimum lighting unit, each minimum lighting unit is independently arranged, and multiple 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 the light-emitting module is provided with a control area adapted to the coordinates of each minimum lighting unit.

[0013] Preferably, the minimum lighting unit is composed of a variety of lamp beads, which emit light of different colors or intensities under the control of the light-emitting module.

[0014] Preferably, the control unit includes a regional module and an early warning module. After receiving the relevant information of the second detection unit, the control unit processes the information in the following manner:

[0015] The contour information is transmitted to the area module. After receiving the contour information of the obstacle, the area module converts and calculates the contour information and finally obtains the coordinate information that is compatible with the lighting unit.

[0016] After receiving the distance information, the warning module compares the distance information with the built-in safety distance and obtains different lighting control instructions based on different comparison information.

[0017] Preferably, after the area module receives different contour information and calculates the corresponding coordinate information, the movement trajectory of the obstacle is calculated based on the front and back changes of the coordinates.

[0018] Preferably, the control unit is further provided with a vehicle sensing module, which obtains the driving status of the vehicle, determines whether the vehicle is in the starting stage or in the driving state according to the vehicle speed, and issues different control instructions to the detection unit according to different states.

[0019] The beneficial effects of the present invention are as follows: compared with the prior art, the tracking and adjustment vehicle headlight control system provided by the present invention first determines whether there is an obstacle in front of the vehicle by using a detection unit. If so, the distance between the obstacle and the vehicle is calculated, and the outer contour of the obstacle is collected. Therefore, during the illumination process, the control unit is used to control the lighting unit to perform different styles of illumination, thereby avoiding direct illumination of the obstacle by the lighting unit and affecting the obstacle. In addition, different colors of light warnings are used according to different distances between the obstacle and the vehicle, thereby reminding the driver to pay attention to driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the unit connections of this application;

[0021] Figure 2 This is a schematic diagram of the workflow of this application. DETAILED DESCRIPTION

[0022] In order to more clearly describe the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. Of course, the technical solution of the present invention is not limited to this. Any improvements to this application without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 and Figure 2The present invention discloses a tracking and adjustment type vehicle headlight control system, which is installed in a 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 a second detection unit, and the first detection unit drives the second detection unit to move after detecting an obstacle, and the second detection unit obtains 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 performs light illumination according to the requirements of the lighting instruction. In this embodiment, two detection units are provided. The first detection unit serves as a low-power startup unit and is always in the on state. The second detection unit is used for subsequent detection only after the first detection unit detects an obstacle, effectively reducing the power consumption of the entire system. When the first detection unit detects an obstacle ahead, the second detection unit is activated to detect the obstacle, obtaining the distance between the first detection unit and the obstacle and the outer contour of the obstacle. The outer contour of the obstacle is then converted to correspondence with the coordinate points on the lighting unit. As a result, when the vehicle lights are illuminated, the lamp beads within the coordinate area of ​​the lighting unit corresponding to the obstacle do not emit light, thus avoiding direct exposure to the obstacle. At the same time, different colors of light are used for warning according to the distance between the obstacle and the vehicle. Most importantly, the light-emitting area of ​​the vehicle lights can be effectively adjusted according to the vehicle's operating trend or the movement trend of the obstacle, thereby reducing light damage to the obstacle while ensuring driving safety, thus achieving a two-pronged effect.

[0024] To achieve the above objectives, a first detection unit detects whether there is an obstacle in front of the vehicle. When an obstacle is detected, the first detection unit controls the second detection unit to operate. The second detection unit obtains the overall outline information of the obstacle and the distance between the obstacle and the vehicle, and transmits this information to the control unit. The first and second detection units utilize one or more combinations of laser detection, infrared detection, and microwave detection. In this embodiment, the first detection unit may utilize an infrared detection unit to determine whether the obstacle is a living thing. Generally speaking, whether it is an animal such as a cat or dog or a pedestrian, they can be detected by an infrared scanner and thus identified as an obstacle by the first detection unit, facilitating subsequent information collection on the obstacle. The second sensor may utilize an infrared sensor or a laser sensor to facilitate the collection of obstacle information.

[0025] The detection unit is also provided with a division module, which divides the vehicle headlights into multiple areas. A second detection unit is provided in each area. The second detection unit collects the outline information and distance of the obstacle by receiving the reflected signal within a period of time. In this embodiment, the vehicle headlights are divided into multiple areas, and a second detection unit is provided in each area. In this way, the second detection units in different areas can be used to collect the external contour information of the obstacle, thereby ensuring the accuracy and stability of information collection, and avoiding the entire information collection system from not being able to work properly due to a problem with a certain second detection unit. During use, the second detection unit emits laser or infrared rays outward, receives the laser or infrared rays emitted by the obstacle, collects the signals fed back within a time period, regards these signals as the feedback signals of the obstacle, and thus obtains which areas the obstacle is in, thereby obtaining the external contour information of the obstacle. In the specific use process, this time period is generally set within 1 microsecond. That is, all signals between the time t when the obstacle's feedback signal is first received and t+1 microsecond are counted as the obstacle's feedback signal. The reason for this setting is that the obstacle is not a planar object. If it is a planar object, the time of receiving the obstacle's feedback signal should be consistent. Taking into account the actual shape of the obstacle, the feedback signals set within a shorter time period are all regarded as the obstacle's feedback signal. This makes the collection of information about the obstacle's external contour more accurate. It is important to note that since the speed of laser or infrared rays reaches the speed of light, this time period should not be too long. Otherwise, the signals fed back by objects other than the obstacle will also be regarded as the obstacle's signal, thereby providing an erroneous area for the collection of information about the obstacle's external contour.

[0026] The lighting unit includes a light-emitting module and a minimum lighting unit. Each minimum lighting unit is independently configured. Multiple independent minimum lighting units are arranged to form a light-emitting surface. The position of each minimum lighting unit in the light-emitting surface corresponds to a unique coordinate. The light-emitting module is provided with a control area adapted to the coordinates of each minimum lighting unit. The minimum lighting unit comprises a plurality of lamp beads, which emit light of different colors or brightnesses under the control of the light-emitting module. In this embodiment, the light-emitting module is used to adjust the on and off of the lamp beads and the color of the light to meet different usage requirements. Each minimum lighting unit is independently configured 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 outline area facing the obstacle does not emit light, while other areas emit light, ensuring the driver's driving safety while preventing the obstacle from being directly exposed to light. Of course, to ensure the normal operation of the minimum lighting unit, the lamp beads in the minimum lighting unit can be replaced with a light panel composed of multiple miniature bulbs to better achieve lighting and meet usage requirements.

[0027] The control unit includes an area module and an early warning module. After receiving the relevant information from the second detection unit, it processes the information as follows: the contour information is transmitted to the area module. After the area module receives the contour information of the obstacle, it converts and calculates the contour information and finally obtains the coordinate information that is compatible with the lighting unit; 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 based on different comparison information; when the area module receives different contour information and calculates the corresponding coordinate information, it calculates the movement trajectory of the obstacle based on the changes in the coordinates. In a specific implementation process, for example, the lamp beads on the light-emitting module are arranged into 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 by row and column coordinates as (1,1), (1,2), (2,1), ... (22,48); when the second unit collects the feedback signal of the obstacle, it transmits the feedback signal to the area module of the control unit. The area module calculates the coordinate value corresponding to the obstacle on the light-emitting module based on the external contour information of the obstacle received by the second control unit, connects all the coordinate values ​​of the external contour to form a gray area, and then overlaps the gray area with the coordinate area formed by the lamp beads to obtain which lamp beads are in the gray area, and then sends instruction information to the light-emitting module, so that all the lamp beads in the gray area are extinguished, and all the lamp beads outside the gray area are lit, thereby ensuring that the obstacle is not formed. directly illuminated; when the position between the obstacle and the vehicle changes (whether the obstacle moves or the vehicle moves), the second detection unit continues to work, determines the direction of movement of the obstacle, and simulates the continuous movement of the obstacle along that direction, and controls different lamp beads to light up or go out, thereby 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, which provides 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 beads emit red light for warning, informing the driver to pay attention to collision. If it is 2-5 meters away, it emits blue light to inform the driver to pay attention to avoid it. If it is more than 5 meters away, it only emits white light for illumination; different colors of lights are used to remind the driver to avoid collisions between the obstacle and the driver.

[0028] The control unit also includes a vehicle sensing module that detects the vehicle's driving status and determines whether it is in the starting phase or driving mode. It then controls the detection unit based on the different states. In this embodiment, the driver's reaction time varies depending on the vehicle's state. For example, during the initial start-up phase, when the vehicle's speed is low and an obstacle is present, the second detection unit can simply detect the obstacle's speed to control the lights. However, when the vehicle is in driving mode, the vehicle's own speed must also be considered, so the lights must be adjusted based on both the obstacle and the vehicle's own speed.

[0029] The present invention will be described below with specific implementation process:

[0030] For example, when a vehicle is in a parking lot and is just starting, a pedestrian passes in front of the vehicle. If the headlights are fully turned on, the strong light will instantly shine into the pedestrian's eyes, causing temporary vision loss. In order to avoid this situation, after the vehicle is started, the first detection unit detects an obstacle (pedestrian) and drives the second unit to move. The second unit collects the external contour information of the obstacle and transmits the information to the control unit. The control unit transmits the lighting instruction to the light-emitting module based on the area where the external contour information of the obstacle is located and the light-emitting area of ​​the lamp beads. The light-emitting module controls the lamp beads to emit light, so that the lamp beads facing the obstacle area do not emit light, and the lamp beads outside the target area emit light, thereby avoiding damage caused by direct light from the lamp beads. At the same time, the distance between the pedestrian and the vehicle is also detected to ensure that both pedestrians and vehicles are in a safe and harmless environment.

[0031] The above disclosures are only several specific embodiments of the present invention, but the present invention is not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A tracking and adjusting vehicle headlight control device, installed in a vehicle; characterized in that: comprising a control unit, a lighting unit and a detection unit electrically connected to each other; The detection unit includes a first detection unit and a second detection unit. After the first detection unit detects an obstacle, it drives the second detection unit to move. The second detection unit obtains 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 performs lighting according to the requirements of the lighting instruction; The first detection unit detects whether there is an obstacle in front of the vehicle. When an obstacle is found, the first detection unit controls the second detection unit to operate. The second detection unit obtains the overall outline information of the obstacle and the distance between the obstacle and the vehicle, and transmits this information to the control unit. The first detection unit and the second detection unit adopt one or more combinations of laser detection, infrared detection, and microwave detection; The detection unit is further provided with a division module, which divides the vehicle headlights into multiple areas. A second detection unit is provided in each area. The second detection unit collects the outline information and distance of the obstacle by receiving the reflected signal over a period of time. The control unit includes an area module and an early warning module. After receiving the relevant information of the second detection unit, the control unit processes the information in the following manner: The contour information is transmitted to the area module. After receiving the contour information of the obstacle, the area module converts and calculates the contour information and finally obtains the coordinate information that is compatible with the lighting unit. After receiving the distance information, the warning module compares the distance information with the built-in safety distance and obtains different lighting control instructions based on different comparison information; When the area module receives different contour information and calculates the corresponding coordinate information, it calculates the movement trajectory of the obstacle based on the changes in the coordinates.

2. The tracking adjustment type vehicle headlight control device according to claim 1, characterized in that: The lighting unit includes a light-emitting module and a minimum lighting unit. Each minimum lighting unit is independently set. Multiple independent minimum lighting units are arranged to form a light-emitting surface. 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.

3. The tracking adjustment type vehicle headlight control device according to claim 2, characterized in that: The minimum lighting unit is composed of a variety of lamp beads, which emit light of different colors or different intensities under the control of the light-emitting module.

4. The tracking adjustment type vehicle headlight control device according to claim 1, characterized in that: The control unit is also provided with a vehicle sensing module, which obtains the driving status of the vehicle, determines whether the vehicle is in the starting stage or in the driving state according to the vehicle speed, and issues different control instructions to the detection unit according to different states.

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