CN118849927A - LED and DLP light source fusion type adaptive high beam control method, system and vehicle thereof - Google Patents

Abstract

The present invention relates to the field of automobile lamp control technology, and in particular to an LED and DLP light source fusion type adaptive high beam control method, system and vehicle thereof. The method includes obtaining vehicle status information and environmental information, and determining whether to activate the adaptive high beam control function, and if so, executing the next step; collecting a front field image through a camera on the vehicle; based on the front field image, calculating the front avoidance area angle with the left and right lights as the coordinate origin, and forming the left and right lights display image information of the dark avoidance area with the left and right lights as the coordinate origin; sending the left and right lights display image information of the dark avoidance area to a DLP driving module, sending the left and right lights as the coordinate origin to an LED driving module, controlling the DLP driving module and the LED driving module to synchronously execute their corresponding information, realizing the fusion of LED and DLP light source adaptive high beam, and the two light sources can be executed synchronously, with good user experience and low implementation cost.

Description

LED and DLP light source fusion type adaptive high beam control method, system and vehicle thereof

Technical Field

The present invention relates to the technical field of automobile lamp control, and in particular to an LED and DLP light source fusion type adaptive high beam control method, system and vehicle thereof.

Background Art

With the development of vehicle technology, the active safety function of headlights has been increasingly valued. High beams can enhance the driver's road visibility at night and detect road conditions ahead in advance, but at the same time they can dazzle and cause danger to road users ahead. Therefore, the industry has proposed smart high beams, which can actively turn off some LED particles in the high beams based on the signals of the vehicle ahead obtained by the vehicle sensor, so that the light does not shine on the vehicle ahead while the lighting in other positions is not affected. In order to more accurately generate avoidance areas and avoid large areas of no light ahead, the pixels of smart high beams are also constantly improving.

At present, smart high beams generally use LED light sources, which can provide a larger illumination angle. However, due to the small number of LED particles and the large coverage angle of a single LED, when there is a vehicle in front, the dark area angle of a single LED has reached about 1°. The dark area covers a large range, not only including the position of the vehicle in front, but also the position without a vehicle. The avoidance angle is large, and accurate avoidance cannot be achieved. A large range of no light area will be generated in front, which is dangerous to driving safety. DLP can achieve million-level pixel control and can achieve accurate avoidance in front, but its light efficiency is low, and it can only illuminate the middle position in front. The illumination angle is small and cannot meet the illumination angle of high beam regulations.

The existing combination of LED light sources and DLP has been found to improve the problems of high beam irradiation angle and front shielding accuracy. However, the vehicle's intelligent high beam includes a left light and a right light. The existing column-type control method means that there is no synchronization signal between the LED controller, the DLP controller and the left and right lights. There will be a delay in the operation of each lamp, and the synchronization of the LED light source intelligent high beam and the DLP intelligent high beam shielding cannot be achieved. The user experience is poor and the implementation cost is high.

Summary of the invention

The technical problem to be solved by the present invention is: in order to solve the technical problems that there is no synchronization signal between the LED controller, the DLP controller and the left and right lights in the prior art, the action of each lamp will be delayed, the synchronization of the LED light source intelligent high beam and the DLP intelligent high beam shielding cannot be achieved, the user experience is poor, and the implementation cost is high. The present invention provides an LED and DLP light source fusion type adaptive high beam control method, which controls the LED and DLP light sources so that the two light sources can perform related operations synchronously, the user experience is good, and the implementation cost is low.

The technical solution adopted by the present invention to solve the technical problem is: an LED and DLP light source fusion type adaptive high beam control method, the method comprising the following steps:

S1, obtaining the vehicle status information and environment information, and determining whether to activate the adaptive high beam control function, if so, executing the next step;

S2, collects the front view image through the camera on the vehicle;

S3, based on the front visual field image, an avoidance area is formed between the own vehicle and the front target object, and the front avoidance area angle with the left and right lights as the coordinate origin is calculated, and the left and right lights display image information with the avoidance dark area is formed according to the calculated front avoidance area angle with the left and right lights as the coordinate origin;

S4, sending the display image information of the left and right lights for avoiding the dark area to the DLP driving module, sending the angle of the front avoidance area with the left and right lights as the coordinate origin to the LED driving module, controlling the DLP driving module and the LED driving module to synchronously execute their corresponding information, and realizing the fusion of LED and DLP light sources for adaptive high beam.

Further, specifically, the step S3 specifically includes the following steps:

S31, acquiring a front visual field image;

S32, detecting the front field image through the target detection model to obtain the front target data, wherein the front target data includes: the target, the angle between the front target and the camera with the camera as the coordinate origin, and the distance D from the front target to the camera;

S33, knowing the distance D1 from the camera to the headlight and the distance D from the front target to the camera, obtaining the distance D2 from the headlight to the front target;

S34, calculate the front avoidance area angle with the left and right lights as the coordinate origins according to the lateral distance W from the camera to the headlights, the distance D2 from the headlights to the front target, and the angle between the camera and the front target with the camera as the coordinate origin.

Further, specifically, assuming that the angles between the camera and the left and right sides of the front target object are β ₁ and β ₂ with the camera as the coordinate origin, the calculation formula of the front avoidance area angle with the left light as the coordinate origin is:

Among them, α1 is the angle of the front avoidance area formed by the line connecting the left light to the left side of the front target object with the left light as the coordinate origin _{, α2} is the angle of the front avoidance area formed by the line connecting the left light to the right side of the front target object with the left light as the coordinate origin;

The calculation formula for the angle of the front avoidance area with the right light as the coordinate origin is:

Among them, γ1 _is the angle of the front avoidance area formed by the line connecting the right light to the left side of the front target, with the right light as the coordinate origin _; γ2 is the angle of the front avoidance area formed by the line connecting the right side of the target in front of the right light, with the right light as the coordinate origin.

Further, specifically, in step S4, controlling the DLP driving module and the LED driving module to synchronously execute the corresponding information includes:

Obtaining the execution time T1 of the DLP driving module and the execution time T2 of the LED driving module, and then calculating the delay compensation time t=T2-T1 of the LED driving module;

The DLP driving module first executes the display image information of the left and right lights to avoid the dark area, and at the same time controls the LED driving module to execute the front avoidance area angle with the left and right lights as the coordinate origin based on the delay compensation time t, so that the LED light source and the DLP light source are turned on synchronously and form an illumination area on the illumination surface.

Further, specifically, the LED light source of the illumination area includes left and right vertical angles and left and right horizontal angles, and the left and right vertical angle range of the LED light source is ±20°;

The DLP light source in the illumination area includes left and right vertical angles and left and right horizontal angles, and the left and right vertical angle range of the DLP light source is ±7°.

Further, specifically, in step S1, the vehicle status information includes: an intelligent high beam enabling signal, a vehicle speed signal, and an ambient light signal.

When the intelligent high beam enable signal is turned on, the vehicle speed signal is greater than the vehicle speed threshold, and the ambient light signal is greater than the ambient light threshold, the adaptive high beam control function is automatically activated;

Otherwise, the adaptive high-beam control function is not activated.

An LED and DLP light source fusion type adaptive high beam control system, the system comprising:

A camera is configured to capture a front field image;

A controller connected to the camera, the controller being configured to execute the LED and DLP light source fusion type adaptive high beam control method as described above;

a headlamp connected to the controller and configured to execute a lamp signal transmitted by the controller;

The headlight comprises a left light and a right light, and the left light and the right light have the same structure, and both comprise an LED driving module and a DLP driving module.

The controller comprises:

A logic control unit is configured to obtain own vehicle state information and environmental information and determine whether to activate an adaptive high beam control function;

The calculation unit is configured to calculate the front avoidance area angle with the left and right lights as the coordinate origin based on the front visual field image, and form the avoidance area between the own vehicle and the front target object, and form the left and right lights display image information with the avoidance dark area according to the calculated front avoidance area angle with the left and right lights as the coordinate origin;

The execution unit is configured to send the left and right lights display image information for avoiding the dark area to the DLP driving module, send the front avoidance area angle with the left and right lights as the coordinate origin to the LED driving module, control the DLP driving module and the LED driving module to synchronously execute their corresponding information, and realize the fusion of LED and DLP light sources for adaptive high beam.

Further, specifically, the controller also includes: a target tracking unit configured to track a front target object in front of the own vehicle.

A vehicle comprises the LED and DLP light source fusion type adaptive high beam control system as described above.

The beneficial effects of the present invention are as follows: the LED and DLP light source fusion type adaptive high beam control method of the present invention solves the problems of poor front shielding accuracy of LED intelligent high beam and low irradiation angle of DLP light source. When there is a target object in front of the vehicle, the LED light source avoids the corresponding area with a large avoidance angle. At this time, the area irradiated by the DLP light source can accurately avoid the vehicle area and generate a small dark area. Through the fusion of the two light types, the left and right irradiation widths of the high beam are met, and the avoidance of the dark area in front can be accurately achieved. In addition, by controlling the LED and DLP light sources, the two light sources can perform related operations synchronously, the user experience is good, and the implementation cost is low.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below in conjunction with the accompanying drawings and embodiments.

FIG. 1 is a schematic flow chart of a control method according to a first embodiment of the present invention.

FIG. 2 is a schematic diagram of a specific flow chart of step S3 of the first embodiment of the present invention.

FIG. 3 is a schematic diagram of calculating the left light dark area angle according to the first embodiment of the present invention.

FIG. 4 is a schematic diagram of calculating the dark area angle of the right lamp according to the first embodiment of the present invention.

FIG. 5 is a schematic diagram of the illumination area effect after fusion according to the first embodiment of the present invention.

FIG. 6 is a schematic diagram of the actual application lighting effect of the first embodiment of the present invention.

FIG. 7 is a schematic diagram of the actual application lighting effect of another viewing angle of the first embodiment of the present invention.

FIG8 is a schematic diagram of the control system structure of the second embodiment of the present invention.

FIG. 9 is a schematic diagram of the internal structure of a left lamp or a right lamp according to the second embodiment of the present invention.

FIG. 10 is a schematic diagram of the detailed structure of the controller according to the second embodiment of the present invention.

FIG. 11 is a schematic diagram of the computer device structure of the third embodiment of the present invention.

In the figure, 301 is an LED light source; 302 is a DLP light source; 303 is a dark area; 7 is a target object; 50 is a camera; 51 is a controller; 52 is a headlight; 521 is a left light; 522 is a right light; 5211 is an LED driver module; 5212 is a DLP driver module; 511 is a logic control unit; 512 is a computing unit; 513 is an execution unit; 514 is a target tracking unit; 10 is a computer device; 1002 is a processor; 1004 is a memory; 1006 is a transmission device.

DETAILED DESCRIPTION

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Example 1

The embodiment of the present application provides an LED and DLP light source fusion type adaptive high beam control method, as shown in FIG1 , the method comprises the following steps:

S1, obtain the vehicle status information and environmental information, and determine whether to activate the adaptive high beam control function. If so, execute the next step; further, obtain the vehicle status information from the whole vehicle system, such as the vehicle status information includes: intelligent high beam enable signal, vehicle speed signal and ambient light signal. When the intelligent high beam enable signal is turned on, the vehicle speed signal is greater than the vehicle speed threshold and the ambient light signal is greater than the ambient light threshold, the adaptive high beam control function is automatically activated; otherwise, the adaptive high beam control function is not activated.

In a specific implementation, the vehicle speed threshold is set to 40 km/h, and the ambient light threshold is set to 6 lx.

S2, collects the front field image through the camera 50 on the vehicle itself to obtain information in front of the vehicle. In a specific embodiment, the camera 50 is set at the center of the front of the vehicle (such as the position of the rearview mirror). Of course, it can also be set at other positions that can recognize the front field image of the vehicle.

S3, based on the front visual field image, an avoidance area is formed between the own vehicle and the front target object, and the front avoidance area angle with the left and right lights as the coordinate origin is calculated, and the left and right lights display image information with the avoidance dark area is formed according to the calculated front avoidance area angle with the left and right lights as the coordinate origin; further, as shown in FIG2, step S3 specifically includes the following steps:

S31, acquiring a front visual field image;

S32, detecting the front field image through the target detection model to obtain the front target data, the front target data including: the target, the angle between the front target and the camera 50 with the camera 50 as the coordinate origin, and the distance D between the front target and the camera 50; wherein the front target may be a vehicle or a pedestrian. The target detection model may be a deep learning model or a convolutional neural network model, but is not limited thereto.

S33, knowing the distance D1 from the camera 50 to the vehicle headlight and the distance D from the front target to the camera 50, obtaining the distance D2 from the vehicle headlight to the front target;

S34, calculate the front avoidance area angle with the left and right lights as the coordinate origins according to the lateral distance W from the camera 50 to the headlights, the distance D2 from the headlights to the front target, and the angle between the camera 50 and the front target with the camera 50 as the coordinate origin.

In the embodiment, as shown in FIG3 , assuming that the angles between the camera 50 and the left and right sides of the front target object are β ₁ and β ₂ with the camera 50 as the coordinate origin, the angle calculation formula of the front avoidance area with the left light 521 as the coordinate origin is:

Wherein, α1 is the angle of the front avoidance area formed by the line connecting _the left light 521 to the left side of the front target object with the left light 521 as the coordinate origin, _α2 is the angle of the front avoidance area formed by the line connecting the left light 521 to the right side of the front target object with the left light 521 as the coordinate origin;

As shown in FIG4 , the calculation formula of the angle of the front avoidance area with the right light 522 as the coordinate origin is:

Among them, γ1 takes the right light 522 as the coordinate origin, and is the angle of the front avoidance area formed by the line connecting the right light 522 to the left side of the front target object; γ2 takes the right light 522 as the coordinate origin, and is the angle of the front avoidance area formed by the line connecting the right light 522 to the right side of the front target object.

S4, sending the display image information of the left and right lights of the dark avoidance area to the DLP driver module 5212, sending the angle of the front avoidance area with the left and right lights as the coordinate origin to the LED driver module 5211, controlling the DLP driver module 5212 and the LED driver module 5211 to synchronously execute their corresponding information, and realizing the integration of LED and DLP light source adaptive high beam. Further, in actual application, the execution time T1 of the DLP driver module 5212 is greater than the execution time T2 of the LED driver module 5211, and controlling the DLP driver module 5212 and the LED driver module 5211 to synchronously execute their corresponding information includes:

Obtain the execution time T1 of the DLP driving module 5212 and the execution time T2 of the LED driving module 5211, and then calculate the delay compensation time t=T2-T1 of the LED driving module 5211;

When the DLP driving module 5212 first executes the image information display of the left and right lights in the avoidance dark area, the LED driving module 5211 is controlled to execute the angle of the front avoidance area with the left and right lights as the coordinate origin based on the delay compensation time t. In other words, when the DLP driving module 5212 executes the image information display of the left and right lights in the avoidance dark area, the LED driving module 5211 will control the execution of the angle of the front avoidance area with the left and right lights as the coordinate origin after the delay compensation time t, so that the LED light source 301 and the DLP light source 302 are turned on synchronously and form an illuminated area on the illuminated surface, avoiding the problem of asynchronous lighting of the same illuminated area, and providing a good user experience.

As shown in Figure 5, the LED light source 301 in the illumination area includes a left horizontal angle H1Top, a right horizontal angle H2Top, a left vertical angle V1L and a right vertical angle V1R. The left vertical angle V1L of the LED light source 301 ranges from -20°, and the right vertical angle V1R ranges from +20°; the DLP light source 302 in the illumination area includes a left horizontal angle H1Bot, a right horizontal angle H2Bot, a left vertical angle V2L and a left vertical angle V2R. The left vertical angle V2L of the DLP light source 302 ranges from -7°, and the right vertical angle V2R ranges from +7°.

It should be noted that in FIG5 , the V-V line is the vertical optical axis, the H-H line is the horizontal optical axis, the left horizontal angle H1Top and the right horizontal angle H2Top of the LED light source 301 in the illumination area, and the left horizontal angle H1Bot and the right horizontal angle H2Bot of the DLP light source 302 in the illumination area are angles relative to the H-H line, the left vertical angle V1L and the right vertical angle V1R of the LED light source 301 in the illumination area, and the left vertical angle V2L and the left vertical angle V2R of the DLP light source 302 in the illumination area are angles relative to the V-V line. FIG5 is a schematic diagram of the illumination area effect after the LED light source 301 and the DLP light source 302 are fused when there is no target in front. When the vehicle detects that there is a target in front, the angle of the front avoidance area with the left and right lights as the coordinate origin will be calculated to form the left and right lights display image information of the avoidance dark area, and then the DLP driver module 5212 and the LED driver module 5211 will be controlled to form the illumination effect diagram shown in FIG6 .

6 and 7 , in order to distinguish between the two types of light, the solid arrow in FIG7 represents the light of the LED light source 301, and the dotted arrow represents the light of the DLP light source 302. When there is a target object 7 in front of the vehicle, the LED light source 301 avoids the corresponding area with a large avoidance angle. At this time, the area illuminated by the DLP light source 302 can accurately avoid the vehicle area and generate a small dark area 303. The fusion of the two light types can not only meet the left and right illumination width of the high beam, but also accurately avoid the dark area in front.

Example 2

The embodiment of the present application provides an LED and DLP light source fusion adaptive high beam control system, as shown in FIGS. 8 and 9 , the system includes:

The camera 50 is configured to capture the front field image and obtain information in front of the vehicle. In a specific embodiment, the camera 50 is set at the center of the front of the vehicle (such as the rearview mirror position). Of course, it can also be set at other positions that can recognize the front field image of the vehicle.

The controller 51 is connected to the camera 50, and the controller 51 is configured to execute the above LED and DLP light source fusion type adaptive high beam control method,

The headlamp 52 is connected to the controller 51 and is configured to execute the lamp signal transmitted by the controller 51;

Among them, the headlight 52 includes a left light 521 and a right light 522. The left light 521 and the right light 522 have the same structure and both include an LED driving module 5211 and a DLP driving module 5212. The LED driving module 5211 and the DLP driving module 5212 in each light are connected to the controller to obtain the lighting signal transmitted by the controller.

In a specific implementation, the camera 50 and the controller 51 , as well as the headlight 52 and the controller 51 , are connected via a CAN bus to ensure that data or signals can be transmitted effectively and quickly.

In this embodiment, the controller 51 is also connected to the vehicle system, and the controller 51 is connected to the vehicle system through a vehicle bus, and the vehicle bus includes but is not limited to a CAN bus or an Ethernet bus; further, as shown in FIG10 , the controller 51 includes:

The logic control unit 511 is configured to obtain the vehicle status information and the environment information from the vehicle system, and determine whether to activate the adaptive high beam control function;

The calculation unit 512 is configured to calculate the angle of the front avoidance area with the left and right lights as the coordinate origin based on the front field image, and form the avoidance area between the own vehicle and the front target object, and form the left and right lights display image information with the avoidance dark area according to the calculated angle of the front avoidance area with the left and right lights as the coordinate origin;

The execution unit 513 is configured to send the left and right lights display image information for avoiding the dark area to the DLP driving module 5212, send the front avoidance area angle with the left and right lights as the coordinate origin to the LED driving module 5211, control the DLP driving module 5212 and the LED driving module 5211 to synchronously execute their corresponding information, and realize the fusion of adaptive high beam of LED and DLP light sources.

It should be noted that, through the above detailed description of the adaptive high beam control method of the LED and DLP light source fusion type, those skilled in the art can clearly know the execution process of the controller 51 in this embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

In an embodiment, the controller 51 also includes: a target tracking unit 514, which is configured to track a target object in front of the own vehicle. By tracking the target object in front of the own vehicle through the target tracking unit 514, it is possible to prevent the light from jumping due to misjudgment of the distance and angle information between the own vehicle and the target object in front, thereby improving the accuracy of adaptive high beam control.

To sum up, the LED and DLP light source fusion type adaptive high beam control method and control system of the present invention solve the problems of poor front shielding accuracy of the LED light source 301 and low irradiation angle of the DLP light source 302. When there is a target object in front of the vehicle, the LED light source 301 avoids the corresponding area with a large avoidance angle. At this time, the area irradiated by the DLP light source 302 can accurately avoid the vehicle area and generate a small dark area. Through the fusion of the two light types, the left and right irradiation widths of the high beam can be met, and the dark area in front can be avoided accurately. In addition, by controlling the two light sources of LED and DLP, the two light sources can perform related operations synchronously, the user experience is good, and the implementation cost is low.

Example 3

A vehicle includes an adaptive high beam control system that integrates LED and DLP light sources as described above.

Example 4

An embodiment of the present application provides a computer device, which includes a processor and a memory, wherein the memory stores at least one instruction or at least one program, and the at least one instruction or the at least one program is loaded and executed by the processor to implement an LED and DLP light source fusion type adaptive high beam control method as provided in the above method embodiment.

FIG11 shows a schematic diagram of the hardware structure of a device for implementing an LED and DLP light source fusion type adaptive high beam control method provided in an embodiment of the present application. The device may participate in or include the device or system provided in an embodiment of the present application. As shown in FIG11 , the computer device 10 may include one or more processors 1002 (the processor may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 1004 for storing data, and a transmission device 1006 for communication functions. In addition, it may also include: a display, an input/output interface (I/O interface), a universal serial bus (USB) port (which may be included as one of the ports of the I/O interface), a network interface, a power supply and/or a camera. It can be understood by a person skilled in the art that the structure shown in FIG11 is only for illustration and does not limit the structure of the above-mentioned electronic device. For example, the computer device 10 may also include more or fewer components than those shown in FIG11, or have a configuration different from that shown in FIG11.

It should be noted that the one or more processors and/or other data processing circuits described above may generally be referred to herein as "data processing circuits". The data processing circuits may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. In addition, the data processing circuit may be a single independent processing module, or may be incorporated in whole or in part into any of the other components in the computer device 10 (or mobile device). As described in the embodiments of the present application, the data processing circuit acts as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

The memory 1004 can be used to store software programs and modules of application software, such as a program instruction/data storage device corresponding to an LED and DLP light source fusion type adaptive high beam control method in an embodiment of the present application. The processor executes various functional applications and data processing by running the software programs and modules stored in the memory 1004, that is, implementing the above-mentioned method. The memory 1004 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 1004 may further include a memory remotely arranged relative to the processor, and these remote memories may be connected to the computer device 10 via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

The transmission device 1006 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the computer device 10. In one example, the transmission device 1006 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 1006 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computer device 10 (or mobile device).

Example 5

An embodiment of the present application also provides a computer-readable storage medium, which can be set in a server to store at least one instruction or at least one program related to an LED and DLP light source fusion type adaptive high beam control method for implementing a method embodiment. The at least one instruction or the at least one program is loaded and executed by the processor to implement an LED and DLP light source fusion type adaptive high beam control method provided in the above method embodiment.

Optionally, in this embodiment, the storage medium may be located in at least one of the multiple network servers of the computer network. Optionally, in this embodiment, the storage medium may include, but is not limited to, various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk, or an optical disk.

Example 6

The embodiment of the present invention further provides a computer program product or a computer program, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes an LED and DLP light source fusion type adaptive high beam control method provided in the above various optional embodiments.

It should be noted that the above-mentioned sequence of the embodiments of the present application is for description only and does not represent the advantages and disadvantages of the embodiments. The above-mentioned specific embodiments of the present application are described. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the embodiments and still achieve the desired results. In addition, the processes depicted in the drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

Each embodiment in this application is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device, equipment and storage medium embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

A person skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware or by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims (9)

1. An LED and DLP light source fusion type self-adaptive high beam control method is characterized by comprising the following steps of:

S1, acquiring state information and environment information of a vehicle, judging whether to activate a self-adaptive high beam control function, and if so, executing the next step;

s2, acquiring a front view image through a camera (50) on the own vehicle;

S3, forming an avoidance area between the self vehicle and a front target object based on the front view image, calculating a front avoidance area angle with a left lamp and a right lamp as coordinate origins, and displaying image information according to the calculated front avoidance area angle with the left lamp and the right lamp as the coordinate origins, wherein the left lamp and the right lamp are formed with avoidance dark areas; the method for calculating the front avoidance area angle by taking the left lamp and the right lamp as the origin of coordinates comprises the following steps:

S31, acquiring a front view image;

S32, detecting the front view image through the target detection model to obtain front target object data, wherein the front target object data comprises: the camera (50) is used as a coordinate origin, and the angle between the front object and the camera (50) and the distance D between the front object and the camera (50) are used as the coordinate origin;

S33, knowing the distance D1 from the camera (50) to the car lamp and the distance D from the front object to the camera (50), obtaining the distance D2 from the car lamp to the front object;

S34, calculating a front avoidance area angle with left and right lamps as coordinate origins according to a transverse distance W from the camera (50) to the car lamp, a distance D2 from the car lamp to a front target object and an angle between the camera (50) and the front target object with the camera (50) as the coordinate origin;

s4, sending left and right lamp display image information avoiding dark areas to a DLP driving module (5212), sending a front avoidance area angle taking the left and right lamps as a coordinate origin to an LED driving module (5211), controlling the DLP driving module (5212) and the LED driving module (5211) to synchronously execute corresponding information, and realizing the fusion of the LED and the DLP light source self-adaptive high beam.

2. The LED and DLP light source fusion type adaptive high beam control method according to claim 1, wherein an angle between a camera (50) serving as a coordinate origin and a left and right connecting line of a front object is β ₁ and β ₂, and a front avoidance region angle calculation formula using a left lamp (521) as a coordinate origin is:

Wherein, α ₁ takes the left lamp (521) as the origin of coordinates, the left lamp (521) forms a front avoidance area angle with the left line of the front object, α ₂ takes the left lamp (521) as the origin of coordinates, the left lamp (521) forms a front avoidance area angle with the right line of the front object;

the front avoidance area angle calculation formula with the right lamp (522) as the origin of coordinates is:

Wherein, gamma ₁ takes the right lamp (522) as the origin of coordinates, the front avoidance area angle formed by the connecting line from the right lamp (522) to the left side of the front target object, gamma ₂ takes the right lamp (522) as the origin of coordinates, and the front avoidance area angle formed by the connecting line from the right lamp (522) to the right side of the front target object.

3. The LED and DLP light source fusion-type adaptive high beam control method according to claim 1, wherein in the step S4, controlling the DLP driving module (5212) and the LED driving module (5211) to synchronously execute their corresponding information includes:

acquiring an execution time T1 of a DLP driving module (5212) and an execution time T2 of the LED driving module (5211), and further calculating a delay compensation time t=t2-T1 of the LED driving module (5211);

The DLP driving module (5212) firstly executes left and right lamps avoiding dark areas to display image information, and meanwhile, based on delay compensation time t, the LED driving module (5211) is controlled to execute a front avoiding area angle taking the left and right lamps as coordinate origins, so that the LED light source (301) and the DLP light source (302) are synchronously turned on, and an illumination area is formed on an illumination plane.

4. A method for LED and DLP light source fusion adaptive high beam control as claimed in claim 3, wherein the LED light source (301) of the illumination area comprises left and right vertical angles and left and right horizontal angles, and the left and right vertical angles of the LED light source (301) range to ±20°;

the DLP light source (302) of the illumination area comprises a left vertical angle and a right vertical angle and a left horizontal angle and a right horizontal angle, and the left vertical angle and the right vertical angle of the DLP light source (302) are within a range of +/-7 degrees.

5. The LED and DLP light source fusion-type adaptive high beam control method according to claim 1, wherein in the step S1, the own vehicle state information includes: an intelligent high beam enabling signal, a vehicle speed signal and an environment light signal,

When the intelligent high beam enabling signal is started, the vehicle speed signal is larger than a vehicle speed threshold value and the environment light signal is larger than an environment light threshold value, an adaptive high beam control function is automatically activated;

otherwise, the adaptive high beam control function is not activated.

6. An LED and DLP light source fusion type adaptive high beam control system, comprising:

A camera (50) configured to acquire a front view image;

A controller (51) connected to the camera (50), the controller (51) being configured to perform the LED and DLP light source fusion-type adaptive high beam control method as defined in any one of claims 1 to 5;

a headlight (52) connected to the controller (51) and configured to perform a light signal transmitted by the controller (51);

The headlamp (52) comprises a left lamp (521) and a right lamp (522), and the left lamp (521) and the right lamp (522) have the same structure and comprise an LED driving module (5211) and a DLP driving module (5212).

7. The LED and DLP light source fusion-type adaptive high beam control system according to claim 6, wherein the controller (51) includes:

A logic control unit (511) configured to acquire own vehicle state information and environment information, and determine whether or not to activate an adaptive high beam control function;

A calculation unit (512) configured to calculate a front avoidance area angle using the left and right lamps as the origin of coordinates based on the front view image, and to display image information of the left and right lamps having the avoidance dark area formed according to the calculated front avoidance area angle using the left and right lamps as the origin of coordinates;

the execution unit (513) is configured to send left and right lamp display image information of avoiding dark areas to the DLP driving module (5212), send front avoiding area angles taking the left and right lamps as origin of coordinates to the LED driving module (5211), control the DLP driving module (5212) and the LED driving module (5211) to synchronously execute corresponding information, and achieve fusion of the LED and the DLP light source self-adaptive high beam.

8. The LED and DLP light source fusion adaptive high beam control system as set forth in claim 7, wherein the controller (51) further includes: and a target tracking unit (514) configured to track a target object in front of the own vehicle.

9. A vehicle comprising an LED and DLP light source fusion-type adaptive high beam control system as claimed in any one of claims 6 to 8.