Vehicle light control method, device, storage medium and equipment

Abstract

The application discloses a vehicle light control method and device, and the method comprises the following steps: in response to the functional requirements of the vehicle light at the current time, determining the actual light pattern matrix of the vehicle at the current time, wherein the actual light pattern matrix comprises the on-off state and the brightness state corresponding to each pixel in the vehicle light; combining the arrangement mode of the pixels in the vehicle light, mapping the actual light pattern matrix of the vehicle at the current time into a logical light pattern matrix meeting the actual lighting requirements; converting the logical light pattern matrix meeting the actual lighting requirements into a drive-recognizable vehicle light control signal according to a pre-set communication protocol and outputting the vehicle light control signal, so that a driving module performs on-off control and brightness control on each pixel in the vehicle light at the current time according to the vehicle light control signal. Through the above method, the vehicle light control can be realized, and the problem that the illumination area resolution is low due to the influence of the control signal sending frequency on the LED pixels in the existing vehicle light control system is solved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, and more specifically, to a vehicle lighting control method and device. Background Technology

[0002] As an indispensable part of a vehicle, headlights not only enhance the overall appearance design but also play a crucial role in driving safety. With the development of the automotive industry in recent years, LED headlights have become widely adopted, and more and more vehicles are equipped with matrix LED headlights. Vehicle lighting control refers to the process by which the vehicle's electronic control unit calculates the appropriate light pattern for the matrix LEDs in the headlights based on inputs such as driver input, surrounding road conditions, vehicle posture, and the properties of obstacles ahead. Through algorithms, it independently controls the brightness of each pixel in the matrix LEDs, allowing the vehicle's lighting to adapt to the surrounding environment. This assists the driver, enhances driving stability, reduces the risk of accidents, and enables high-precision control strategies for adaptive lighting or grayscale image / video display functions.

[0003] However, in the lighting control system of related technologies, the number of LED pixels that can be controlled simultaneously by the matrix LED of the headlight is relatively small, and the refresh rate of the LED pixels is low due to the influence of the control signal transmission frequency. This makes the lighting effect of the pixel headlight not smooth enough, resulting in low lighting area resolution and poor adaptive lighting function. Summary of the Invention

[0004] This invention provides a vehicle lighting control method and apparatus. By mapping the vehicle's actual light pattern matrix at the current moment to an actual light pattern matrix that meets the actual requirements, vehicle lighting control is achieved. This solves the problem in existing vehicle lighting control systems where LED pixels suffer from low illumination area resolution and poor adaptive lighting function due to the influence of control signal transmission frequency. The specific technical solution is as follows:

[0005] In a first aspect, embodiments of the present invention provide a vehicle lighting control method, the method comprising:

[0006] In response to the various functional requirements of the vehicle lights at the current moment, the actual light pattern matrix of the vehicle at the current moment is determined. The actual light pattern matrix includes the on / off state and brightness state of each pixel in the vehicle lights.

[0007] Based on the arrangement of pixels inside the vehicle lights, the actual light pattern matrix of the vehicle at the current moment is mapped into a logical light pattern matrix that meets the actual lighting requirements;

[0008] According to a pre-set communication protocol, the logical light pattern matrix that meets the actual lighting requirements is converted into a driver-recognizable vehicle light control signal and output, so that the driver module can control the switching and brightness of each pixel in the vehicle light at the current moment according to the vehicle light control signal.

[0009] In one implementation, determining the actual light pattern matrix of the vehicle at the current moment in response to various functional requirements of the vehicle lights includes:

[0010] In response to the various functional requirements of the vehicle lights at the current moment, the input control information of the various functional requirements on the actual light pattern matrix is ​​obtained;

[0011] By combining the vehicle lighting strategy with the input control information of the actual light pattern matrix for each of the aforementioned functional requirements, the actual light pattern matrix of the vehicle at the current moment is determined.

[0012] In one implementation, the functional requirements include at least state functional requirements and / or communication functional requirements. The step of acquiring the input control information of the functional requirements for the actual light pattern matrix in response to the current state of the vehicle lights includes:

[0013] In response to the vehicle's current status input command, the system acquires the input control information for the actual light pattern matrix based on the input information corresponding to the vehicle's current operating state; and / or

[0014] In response to the vehicle's current communication input command, the system obtains the input control information for the actual light pattern matrix based on the image information stored in the vehicle's internal storage or input via in-vehicle communication. The image information records the vehicle's lighting status requirements.

[0015] In one embodiment, the step of obtaining input control information for the actual optical matrix based on image information from the vehicle's built-in storage or in-vehicle communication input, according to communication function requirements, includes:

[0016] By performing grayscale processing on image information input from the vehicle's built-in storage or vehicle communication, the image information is converted into a grayscale matrix for vehicle lighting control, in which each pixel in the grayscale matrix for vehicle lighting control has a corresponding grayscale value.

[0017] The grayscale value of each pixel in the grayscale matrix of the vehicle lighting control is mapped to the light brightness of each pixel in the actual light pattern matrix, and the input control information of the communication function requirements for the actual light pattern matrix is ​​obtained based on the light brightness of each pixel in the actual light pattern matrix.

[0018] In one implementation, the step of coupling the input control information of the various functional requirements to the actual light pattern matrix in conjunction with the vehicle lighting strategy to determine the actual light pattern matrix of the vehicle at the current moment includes:

[0019] By combining the vehicle lighting strategy, the required weight or priority of each functional requirement in lighting control is obtained;

[0020] Based on the weight or priority of each functional requirement in lighting control, the input control information corresponding to each requirement is coupled to determine the actual light pattern matrix of the vehicle at the current moment.

[0021] In one implementation, mapping the actual light pattern matrix of the vehicle at the current moment to a logical light pattern matrix that meets actual lighting requirements, based on the arrangement of pixels within the vehicle lights, includes:

[0022] Based on the arrangement of pixels inside the vehicle lights, the mapping relationship between the actual pixel number and the logical pixel number of each pixel in the actual light pattern matrix of the vehicle at the current moment is analyzed.

[0023] By utilizing the mapping relationship between the actual pixel number and the logical pixel number, the on / off state and brightness state of each pixel in the actual light pattern matrix of the vehicle at the current moment are adjusted to obtain a logical light pattern matrix that meets the actual lighting requirements.

[0024] In one implementation, adjusting the on / off state and brightness state of each pixel in the actual light pattern matrix of the vehicle at the current moment using the mapping relationship to obtain a logical light pattern matrix that meets the actual lighting requirements includes:

[0025] By utilizing the mapping relationship between the actual pixel number and the logical pixel number, the on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment, as well as the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number, are obtained.

[0026] The on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment are interchanged with the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number to obtain a logical light pattern matrix that meets the actual lighting requirements.

[0027] Secondly, embodiments of the present invention provide a vehicle lighting control device, the device comprising:

[0028] The determining unit is used to determine the actual light pattern matrix of the vehicle at the current moment in response to the various functional requirements of the vehicle lights. The actual light pattern matrix includes the on / off state and brightness state of each pixel in the vehicle lights.

[0029] The mapping unit is used to map the actual light pattern matrix of the vehicle at the current moment into a logical light pattern matrix that meets the actual lighting requirements, based on the arrangement of pixels inside the vehicle lights.

[0030] The output unit is used to convert the logic light pattern matrix that meets the actual lighting requirements into a driver-recognizable vehicle light control signal according to a pre-set communication protocol and output it, so that the drive module can control the switching and brightness of each pixel in the vehicle light at the current moment according to the vehicle light control signal.

[0031] In one embodiment, the determining unit includes:

[0032] The acquisition module is used to respond to the various functional requirements of the vehicle lights at the current moment and acquire the input control information of the various functional requirements on the actual light pattern matrix.

[0033] The determination module is used to couple the input control information of the actual light pattern matrix with the various functional requirements of the vehicle lighting strategy to determine the actual light pattern matrix of the vehicle at the current moment.

[0034] In one implementation, the acquisition module is specifically configured to, in response to the vehicle's current status input command, acquire the input control information for the actual light pattern matrix based on the input information corresponding to the vehicle's current operating status; and / or

[0035] The acquisition module is further configured to respond to the vehicle's current communication input command and acquire the input control information of the actual light pattern matrix based on the image information from the vehicle's built-in storage or vehicle communication input, wherein the image information records the vehicle's lighting status requirements.

[0036] In one embodiment, the acquisition module includes:

[0037] The conversion submodule is used to convert the image information input from the vehicle's built-in storage or vehicle communication into a grayscale matrix for vehicle lighting control by performing grayscale processing on the image information. Each pixel in the grayscale matrix for vehicle lighting control has a corresponding grayscale value.

[0038] The acquisition submodule is used to map the gray value of each pixel in the grayscale matrix of the vehicle lighting control to the light brightness of each pixel in the actual light pattern matrix, and to acquire the input control information of the actual light pattern matrix for communication function requirements based on the light brightness of each pixel in the actual light pattern matrix.

[0039] In one implementation, the determining module is specifically used to obtain the demand weight or priority of each functional requirement in lighting control in combination with the vehicle lighting strategy;

[0040] The determining module is further configured to couple the input control information corresponding to each functional requirement with the requirement weight or priority in lighting control, and determine the actual light pattern matrix of the vehicle at the current moment.

[0041] In one embodiment, the mapping unit includes:

[0042] The analysis module is used to analyze the mapping relationship between the actual pixel number and the logical pixel number of each pixel in the actual light pattern matrix of the vehicle at the current moment, based on the arrangement of pixels inside the vehicle lights.

[0043] The adjustment module is used to adjust the on / off state and brightness state of each pixel in the actual light pattern matrix of the vehicle at the current moment by using the mapping relationship between the actual pixel number and the logical pixel number, so as to obtain a logical light pattern matrix that meets the actual lighting requirements.

[0044] In one embodiment, the adjustment module is specifically used to obtain the on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment, and the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number, by utilizing the mapping relationship between the actual pixel number and the logical pixel number.

[0045] The adjustment module is further configured to interchange the on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment, and the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number, to obtain a logical light pattern matrix that meets the actual lighting requirements.

[0046] Thirdly, embodiments of the present invention provide a storage medium storing executable instructions thereon, which, when executed by a processor, cause the processor to implement the method described in the first aspect.

[0047] Fourthly, embodiments of the present invention provide a vehicle lighting control device, comprising:

[0048] One or more processors;

[0049] Storage device for storing one or more programs.

[0050] Wherein, when the one or more programs are executed by the one or more processors, the one or more processors implement the method described in the first aspect.

[0051] As described above, the vehicle lighting control method and apparatus provided in this invention can respond to the various functional requirements of the vehicle lights at the current moment, determine the actual light pattern matrix of the vehicle at the current moment, where the actual light pattern matrix includes the on / off state and brightness state corresponding to each pixel in the vehicle lights, and combine the arrangement of pixels inside the vehicle lights to map the actual light pattern matrix of the vehicle at the current moment into a logical light pattern matrix that meets the actual lighting requirements. Then, according to a pre-set communication protocol, the logical light pattern matrix that meets the actual lighting requirements is converted into a driver-recognizable headlight control signal and output, so that the driver module can control the on / off state and brightness of each pixel in the vehicle lights at the current moment according to the headlight control signal. Therefore, compared with existing vehicle lighting control methods that can control a relatively small number of LED pixels simultaneously, this invention achieves vehicle lighting control by mapping the actual light pattern matrix of the vehicle at the current moment into an actual light pattern matrix that meets the actual requirements, thereby solving the problem in existing vehicle lighting control systems where LED pixels are affected by the frequency of control signal transmission, resulting in low illumination area resolution and poor adaptive lighting function.

[0052] Furthermore, the technical effects that this embodiment can also achieve include:

[0053] By mapping the actual light pattern matrix of the vehicle at the current moment to a logical light pattern matrix that meets the actual lighting requirements, real-time control of each LED particle in the pixel headlight can be achieved under various functional requirements. It can adapt to various headlight architectures and can also control the increase of the number of LED particles to improve execution efficiency and improve adaptive lighting effects.

[0054] Of course, implementing any product or method of the present invention does not necessarily require achieving all of the advantages described above at the same time. Attached Figure Description

[0055] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0056] Figure 1 This is a flowchart illustrating a vehicle lighting control method provided in an embodiment of the present invention.

[0057] Figure 2 This is a schematic diagram comparing the actual pixel number and logical pixel number of a matrix LED with 256 pixels provided in an embodiment of the present invention.

[0058] Figure 3This is a structural block diagram of a vehicle lighting control system provided in an embodiment of the present invention;

[0059] Figure 4 This is a block diagram of a vehicle lighting control device provided in an embodiment of the present invention. Detailed Implementation

[0060] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0061] It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments and drawings of this invention are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0062] This invention provides a vehicle lighting control method and apparatus. It achieves vehicle lighting control by mapping the vehicle's current light pattern matrix to a light pattern matrix that meets actual needs. This solves the problem in existing vehicle lighting control systems where LED pixels suffer from low illumination area resolution and poor adaptive lighting functionality due to the influence of control signal transmission frequency. The vehicle lighting control system of this invention can be embedded into the vehicle's electronic control unit, enabling control of each pixel in the matrix LED to adapt to various pixel headlight architectures and improve the adaptive lighting effect of the vehicle.

[0063] The embodiments of the present invention will be described in detail below.

[0064] Figure 1 This is a flowchart illustrating a vehicle lighting control method according to an embodiment of the present invention. The method may include the following steps:

[0065] 101. In response to the various functional requirements of the vehicle lights at the current moment, determine the actual light pattern matrix of the vehicle at the current moment.

[0066] The vehicle's headlights are LED matrix pixel headlights. Each headlight contains several independent LED light-emitting elements, all of which support independent switching and brightness adjustment. When headlight adjustment is needed, the headlights can adjust their on / off state and brightness based on sensor information. Typically, the vehicle control system detects the ambient brightness outside the vehicle using a light intensity sensor. When the ambient brightness is below a specified value, the vehicle control system automatically activates the pixel headlights, or it can be triggered by the driver.

[0067] The current functional requirements of vehicle lights can include, but are not limited to, driver-triggered requirements, requirements triggered by the vehicle's surrounding environment, requirements triggered by the vehicle's posture, and requirements for adjustment based on specific scenarios. Driver-triggered requirements can be generated by the driver's control commands to the vehicle lights, such as turning the lights on / off or adjusting their brightness. Requirements triggered by the vehicle's surrounding environment can be generated by changes in the surrounding environment during vehicle movement; for example, turning the lights on or off when the vehicle is obstructed by buildings. Requirements triggered by the vehicle's posture can be generated by changes in the vehicle's driving angle; for example, partially turning on or off the lights when the vehicle is approaching a curve. Requirements for adjustment based on specific scenarios can be generated by control commands triggered by scene images stored in the vehicle's memory or transmitted via external communication; for example, triggering control commands during vehicle movement and adjusting the vehicle lights based on stored scene images.

[0068] In practical applications, the current functional requirements of the vehicle lights can be set as built-in logic of the vehicle control system. The actual light pattern matrix of the vehicle at the current moment can be calculated according to this built-in logic. This calculation result can be obtained based on input information such as driver control, surrounding road conditions, vehicle posture, and the attributes of obstacles ahead. It can also be obtained by converting the current frame of a single image or video input from built-in storage or various communication methods within the vehicle. Here, the actual light pattern matrix includes the on / off state and brightness state corresponding to each pixel in the vehicle lights. Specifically, it can respond to the current functional requirements of the vehicle lights, obtaining the input control information of each functional requirement on the actual light pattern matrix. By coupling the input control information of each functional requirement on the actual light pattern matrix with the vehicle lighting strategy, the actual light pattern matrix of the vehicle at the current moment can be determined. Here, each lighting requirement corresponds to the lighting state of a set of lights in the LED matrix. Then, various requirements generated based on the overall vehicle lighting pattern requirements are coupled together. Furthermore, the state of each pixel in the LED matrix of the vehicle's headlights is stored as a set of actual light pattern matrices. For example, the state of some pixels in the LED matrix is ​​determined to be turned off based on the state of the obstacle in front, or the internally stored image is converted into a grayscale matrix according to the image display requirements, and the state of the pixels in the LED matrix is ​​controlled by the grayscale matrix.

[0069] The functional requirements here include at least status functional requirements and / or communication functional requirements. When acquiring input control information for each functional requirement, specifically, in response to the vehicle's current status input command, the input control information for the actual light pattern matrix can be acquired based on the input information corresponding to the vehicle's current operating status; and / or in response to the vehicle's current communication input command, the input control information for the actual light pattern matrix can be acquired based on image information from the vehicle's built-in storage or in-vehicle communication. The image information records the vehicle's lighting status requirements, for example, controlling the pixels in the center area of ​​the LED matrix to turn on and controlling the pixels in other areas to turn off, and also controlling the brightness of the pixels in the center area of ​​the matrix to gradually decrease.

[0070] Furthermore, in order to precisely control each pixel in the actual light pattern matrix, the above-mentioned input control information can only include the on / off state of each pixel. For the brightness of each pixel in the on state, it can be calculated by the following formula: Pixel brightness = Real-time brightness ratio * Set brightness ratio * Maximum brightness. The maximum brightness and set brightness ratio can be set according to the actual situation. The real-time brightness ratio is determined according to the current function, such as the actual lighting brightness and control signal in the environment. For example, the maximum brightness of a single pixel is 255, and the current requirement is to calculate the brightness ratio to be 75% in real time. The global brightness is set to 80%. At this time, the pixel brightness is 255 * 75% * 80% = 153. This formula can be used to calculate the brightness of each pixel in the lighting control matrix. In the process of obtaining the input control information for the actual light pattern matrix based on image information input from the vehicle's built-in storage or in-vehicle communication, the aforementioned input control information may also include the light brightness of each pixel. The light brightness can be used to determine whether each pixel is turned on; a brightness of 0 indicates it is off, and anything else indicates it is on. Specifically, the image information input from the vehicle's built-in storage or in-vehicle communication can be grayscale processed to convert the image information into a grayscale matrix for vehicle light control. Each pixel in the grayscale matrix for vehicle light control has a corresponding grayscale value. The grayscale value of each pixel in the grayscale matrix for vehicle light control is mapped to the light brightness of each pixel in the actual light pattern matrix, and the input control information for the actual light pattern matrix based on the light brightness of each pixel in the actual light pattern matrix is ​​obtained.

[0071] It is understandable that multiple functional requirements may arise during vehicle operation, or there may be only one. Here, the vehicle's lighting strategy can be used to obtain the weight or priority of each functional requirement in lighting control. Based on the weight or priority of each functional requirement in lighting control, the input control information corresponding to each requirement is coupled to determine the vehicle's actual light pattern matrix at the current moment. For example, if the lighting strategy requires prioritizing image control of the actual light pattern matrix, and there are multiple functional requirements including image control of the lighting matrix, then the generation of the image-controlled actual light pattern matrix is ​​used. Alternatively, if the lighting strategy requires using images combined with the vehicle's surrounding environment to control the actual light pattern matrix, and there are multiple functional requirements including images combined with the vehicle's surrounding environment, then pre-set weight values ​​for image control of the actual light pattern matrix and the vehicle's surrounding environment control of the actual light pattern matrix are used. For each pixel in the on state, a weighted average method is used to calculate the light brightness of each pixel, and then the actual light pattern matrix is ​​generated based on the on state of each pixel and the light brightness control.

[0072] 102. Based on the arrangement of pixels inside the vehicle lights, the actual light pattern matrix of the vehicle at the current moment is mapped into a logical light pattern matrix that meets the actual lighting requirements.

[0073] It is understandable that the actual light pattern matrix of the vehicle at the current moment corresponds to the illumination state of the pixel headlights in their physical relative positions. However, the pixel numbering order inside the matrix LEDs that serve as the light source for the pixel headlights may not be the same as their spatial arrangement. To ensure that the illumination effect of the pixel headlights meets actual lighting requirements, it is usually necessary to mathematically map and transform the actual light pattern matrix at the current moment according to the arrangement of the pixel headlight LED pixels, thereby obtaining a data set that conforms to the pixel headlight LED driver module.

[0074] Specifically, by analyzing the pixel arrangement within the vehicle's headlights, the mapping relationship between the actual pixel number and the logical pixel number of each pixel in the vehicle's actual light pattern matrix at the current moment can be determined. This mapping relationship can then be used to adjust the on / off state and brightness state of each pixel in the vehicle's actual light pattern matrix at the current moment, resulting in a logical light pattern matrix that meets actual lighting requirements. Considering the potential for various pixel arrangements in chip design, the mapping relationship between the actual pixel number and the logical pixel number usually needs to be analyzed in conjunction with the chip design. For example... Figure 2 This diagram illustrates a comparison between the actual and logical pixel numbers of a 256-pixel matrix LED. The left side shows the actual light pattern pixel distribution of a 16x16 LED matrix, arranged in a standard order. The right side shows the logical light pattern pixel distribution of the LED matrix, based on the pixel distribution within the headlight bulb. The pixel distribution within the bulb varies depending on the headlight model; the diagram shows one example. Analysis reveals the logical pixel number N. L The mapping relationship between the actual pixel number N and the actual pixel number N:

[0075]

[0076] Where mod means modulo, and [N / 32] means removing the decimal part from N / 32.

[0077] It is understandable that the logical pixel number takes into account the internal structure of the lamp core. The actual light pattern matrix formed by using the logical pixel number can provide a lighting effect that better meets the actual lighting needs.

[0078] 103. The logic light pattern matrix that meets the actual lighting requirements is converted into a driver-recognizable vehicle light control signal according to the pre-set communication protocol and output, so that the driver module can control the switching and brightness of each pixel in the vehicle light at the current moment according to the vehicle light control signal.

[0079] The pre-configured communication protocol here can be either SCI or CAN. Specifically, it follows the headlight control module's communication protocol to convert the logical light pattern matrix that meets actual lighting needs into control signals that the pixel headlight LED driver module can recognize and output, such as SCI or CAN signals, to control the pixel headlights to illuminate and adjust their brightness. Simultaneously, the pixel headlight LED driver module can also input the headlight's current operating status signal to ensure normal headlight operation and respond to and handle potential faults when necessary.

[0080] In practical application scenarios, Figure 3 The diagram illustrates the structural block diagram of a vehicle lighting control system provided in an embodiment of the present invention, including an external light pattern input unit 21, a lighting control system 22, and an LED driver unit 23. After passing through the external light pattern input unit 21, the light pattern is input to the lighting control system 22 in conjunction with the ADB function module and various functional requirements such as internally stored light pattern data. The lighting control system 22 is equipped with an actual light pattern calculation module, a logic light pattern calculation module, and a headlight driver communication module. Here, the actual light pattern calculation module is used to determine the actual light pattern matrix of the vehicle at the current moment in conjunction with various functional requirements. The logic light pattern calculation module is used to convert the actual light pattern matrix of the vehicle at the current moment into a logic light pattern matrix that meets the actual lighting requirements according to a certain mathematical operation based on the determined LED pixel arrangement of the pixel headlights. The headlight driver communication module is used for control signal output. It can convert the logic light pattern matrix that meets the actual lighting requirements into a control signal that can be recognized by the pixel headlight LED driver unit 23 according to a determined driver communication protocol. Generally, it controls the high and low levels bit by bit according to the timing sequence and outputs the signal, and controls the pixel headlights to light up according to the actual lighting requirements. To further improve the control of the lights, headlight status monitoring can be set up. The current working status of the headlights can be determined and any possible faults can be handled through the diagnostic services provided by the LED driver unit 23 and the diagnostic logic of the headlight control itself.

[0081] The vehicle lighting control method provided in this invention can respond to the various functional requirements of the vehicle lights at the current moment, determine the actual light pattern matrix of the vehicle at the current moment, where the actual light pattern matrix includes the on / off state and brightness state of each pixel in the vehicle lights, and map the actual light pattern matrix of the vehicle at the current moment into a logical light pattern matrix that meets the actual lighting requirements, based on the arrangement of pixels within the vehicle lights. Then, according to a pre-set communication protocol, the logical light pattern matrix that meets the actual lighting requirements is converted into a driver-recognizable headlight control signal and output, so that the driver module can control the on / off state and brightness of each pixel in the vehicle lights at the current moment according to the headlight control signal. Therefore, compared with existing vehicle lighting control methods that can control a limited number of LED pixels simultaneously, this invention achieves vehicle lighting control by mapping the actual light pattern matrix of the vehicle at the current moment into an actual light pattern matrix that meets the actual requirements, thus solving the problem of low illumination area resolution and poor adaptive lighting function caused by the influence of the control signal transmission frequency on LED pixels in existing vehicle lighting control systems.

[0082] Based on the above embodiments, another embodiment of the present invention provides a vehicle lighting control device, such as... Figure 4 As shown, the device includes:

[0083] The determining unit 31 can be used to determine the actual light pattern matrix of the vehicle at the current moment in response to various functional requirements of the vehicle lights. The actual light pattern matrix includes the on / off state and brightness state of each pixel in the vehicle lights.

[0084] The mapping unit 32 can be used to map the actual light pattern matrix of the vehicle at the current moment into a logical light pattern matrix that meets the actual lighting requirements, based on the arrangement of pixels inside the vehicle lights.

[0085] The output unit 33 can be used to convert the logic light pattern matrix that meets the actual lighting requirements into a driver-recognizable vehicle light control signal according to a pre-set communication protocol and output it, so that the drive module can control the switching and brightness of each pixel in the vehicle light at the current moment according to the vehicle light control signal.

[0086] In practical application scenarios, the determining unit 31 includes:

[0087] The acquisition module can be used to respond to the various functional requirements of the vehicle lights at the current moment and acquire the input control information of the various functional requirements on the actual light pattern matrix.

[0088] The determination module can be used to couple the input control information of the actual light pattern matrix with the various functional requirements of the vehicle lighting strategy to determine the actual light pattern matrix of the vehicle at the current moment.

[0089] In practical applications, the acquisition module can specifically be used to respond to the vehicle's current status input command, and acquire the input control information for the actual light pattern matrix based on the input information corresponding to the vehicle's current operating status; and / or

[0090] Specifically, the acquisition module can also be used to respond to the vehicle's current communication input command, and to acquire the input control information of the actual light pattern matrix based on the image information of the vehicle's built-in storage or vehicle communication input, wherein the image information records the vehicle's lighting status requirements.

[0091] In practical application scenarios, the acquisition module includes:

[0092] The conversion submodule can be used to convert the image information input from the vehicle's built-in storage or vehicle communication into a grayscale matrix for vehicle lighting control by performing grayscale processing on the image information. Each pixel in the grayscale matrix for vehicle lighting control has a corresponding grayscale value.

[0093] The acquisition submodule can be used to map the grayscale value of each pixel in the grayscale matrix of the vehicle lighting control to the light brightness of each pixel in the actual light pattern matrix, and to acquire the input control information of the actual light pattern matrix for communication function requirements based on the light brightness of each pixel in the actual light pattern matrix.

[0094] In practical application scenarios, the determining module can be specifically used to obtain the demand weight or priority of each functional requirement in lighting control by combining the vehicle lighting strategy.

[0095] The determining module can also be used to couple the input control information corresponding to each functional requirement in lighting control according to the requirement weight or priority of each functional requirement, and determine the actual light pattern matrix of the vehicle at the current moment.

[0096] In practical applications, the mapping unit 32 includes:

[0097] The analysis module can be used to analyze the mapping relationship between the actual pixel number and the logical pixel number of each pixel in the actual light pattern matrix of the vehicle at the current moment, based on the arrangement of pixels inside the vehicle lights.

[0098] The adjustment module can be used to adjust the on / off state and brightness state of each pixel in the actual light pattern matrix of the vehicle at the current moment by using the mapping relationship between the actual pixel number and the logical pixel number, so as to obtain a logical light pattern matrix that meets the actual lighting requirements.

[0099] In practical application scenarios, the adjustment module can be used to obtain the on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment, as well as the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number, by utilizing the mapping relationship between the actual pixel number and the logical pixel number.

[0100] The adjustment module can also be used to interchange the on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment, and the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number, so as to obtain a logical light pattern matrix that meets the actual lighting requirements.

[0101] Based on the above method embodiments, another embodiment of the present invention provides a storage medium storing executable instructions thereon, which, when executed by a processor, cause the processor to implement the above method.

[0102] Based on the above embodiments, another embodiment of the present invention provides a vehicle lighting control device, including:

[0103] One or more processors;

[0104] Storage device for storing one or more programs.

[0105] When the one or more programs are executed by the one or more processors, the one or more processors implement the above-described method.

[0106] The above system and device embodiments correspond to the method embodiments and have the same technical effects. For detailed descriptions, please refer to the method embodiments. The device embodiments are derived based on the method embodiments; detailed descriptions can be found in the method embodiments section, and will not be repeated here. Those skilled in the art will understand that the accompanying drawings are merely schematic diagrams of one embodiment, and the modules or processes shown in the drawings are not necessarily essential for implementing the present invention.

[0107] Those skilled in the art will understand that the modules in the apparatus of the embodiments can be distributed in the apparatus of the embodiments as described in the embodiments, or they can be located in one or more devices different from this embodiment with corresponding changes. The modules of the above embodiments can be combined into one module, or they can be further divided into multiple sub-modules.

[0108] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vehicle lighting control method, characterized in that, The method includes: In response to the various functional requirements of the vehicle lights at the current moment, the actual light pattern matrix of the vehicle at the current moment is determined. The actual light pattern matrix includes the on / off state and brightness state of each pixel in the vehicle lights. Based on the arrangement of pixels inside the vehicle lights, the actual light pattern matrix of the vehicle at the current moment is mapped into a logical light pattern matrix that meets the actual lighting requirements; According to the pre-set communication protocol, the logical light pattern matrix that meets the actual lighting requirements is converted into a driver-recognizable vehicle light control signal and output, so that the driver module can control the switching and brightness of each pixel in the vehicle light at the current moment according to the vehicle light control signal. The step of mapping the actual light pattern matrix of the vehicle at the current moment to a logical light pattern matrix that meets the actual lighting requirements, based on the arrangement of pixels within the vehicle lights, includes: Based on the arrangement of pixels inside the vehicle lights, the mapping relationship between the actual pixel number and the logical pixel number of each pixel in the actual light pattern matrix of the vehicle at the current moment is analyzed. The actual pixel number corresponds to the light pattern pixel distribution arranged in a standard order, and the logical pixel number corresponds to the light pattern pixel distribution according to the pixel distribution inside the lamp core. By utilizing the mapping relationship between the actual pixel number and the logical pixel number, the on / off state and brightness state of each pixel in the actual light pattern matrix of the vehicle at the current moment are adjusted to obtain a logical light pattern matrix that meets the actual lighting requirements.

2. The method as described in claim 1, characterized in that, The process of determining the vehicle's actual light pattern matrix in response to the various functional requirements of the vehicle's lights at the current moment includes: In response to the current functional requirements of the vehicle lights, the input control information of the actual light pattern matrix for each functional requirement is obtained; By combining the vehicle lighting strategy with the input control information of the actual light pattern matrix for each of the aforementioned functional requirements, the actual light pattern matrix of the vehicle at the current moment is determined.

3. The method as described in claim 2, characterized in that, The aforementioned functional requirements include at least status functional requirements and / or communication functional requirements. The process of responding to the current functional requirements of the vehicle lights and acquiring the input control information of these functional requirements for the actual light pattern matrix includes: In response to the vehicle's current status input command, the system acquires the input control information for the actual light pattern matrix based on the input information corresponding to the vehicle's current operating state; and / or In response to the vehicle's current communication input command, the system obtains the input control information for the actual light pattern matrix based on the image information stored in the vehicle's internal storage or input via in-vehicle communication. The image information records the vehicle's lighting status requirements.

4. The method as described in claim 3, characterized in that, The step of obtaining the input control information for the actual optical matrix based on image information from the vehicle's built-in storage or in-vehicle communication to meet communication function requirements includes: By performing grayscale processing on image information input from the vehicle's built-in storage or vehicle communication, the image information is converted into a grayscale matrix for vehicle lighting control, in which each pixel in the grayscale matrix for vehicle lighting control has a corresponding grayscale value. The grayscale value of each pixel in the grayscale matrix of the vehicle lighting control is mapped to the light brightness of each pixel in the actual light pattern matrix, and the input control information of the communication function requirements for the actual light pattern matrix is ​​obtained based on the light brightness of each pixel in the actual light pattern matrix.

5. The method as described in claim 2, characterized in that, The process of coupling the input control information of the various functional requirements to the actual light pattern matrix in conjunction with the vehicle lighting strategy to determine the actual light pattern matrix of the vehicle at the current moment includes: By combining the vehicle lighting strategy, the required weight or priority of each functional requirement in lighting control is obtained; Based on the weight or priority of each functional requirement in lighting control, the input control information corresponding to each functional requirement is coupled to determine the actual light pattern matrix of the vehicle at the current moment.

6. The method as described in claim 1, characterized in that, The step of adjusting the on / off state and brightness state of each pixel in the actual light pattern matrix of the vehicle at the current moment using the mapping relationship to obtain a logical light pattern matrix that meets the actual lighting requirements includes: By utilizing the mapping relationship between the actual pixel number and the logical pixel number, the on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment, as well as the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number, are obtained. The on / off state and brightness state of the pixel corresponding to the actual pixel number in the actual light pattern matrix of the vehicle at the current moment are interchanged with the on / off state and brightness state of the pixel corresponding to the corresponding logical pixel number to obtain a logical light pattern matrix that meets the actual lighting requirements.

7. A vehicle lighting control device, characterized in that, The device includes: The determining unit is used to determine the actual light pattern matrix of the vehicle at the current moment in response to the various functional requirements of the vehicle lights. The actual light pattern matrix includes the on / off state and brightness state of each pixel in the vehicle lights. A mapping unit is used to map the actual light pattern matrix of the vehicle at the current moment into a logical light pattern matrix that meets the actual lighting requirements, based on the arrangement of pixels inside the vehicle's headlights. Specifically, the mapping unit is used to: analyze the mapping relationship between the actual pixel number and the logical pixel number corresponding to each pixel in the actual light pattern matrix of the vehicle at the current moment, based on the arrangement of pixels inside the vehicle's headlights, wherein the actual pixel number corresponds to a light pattern pixel distribution arranged in a standard order, and the logical pixel number corresponds to a light pattern pixel distribution arranged according to the pixel distribution inside the lamp core; and adjust the on / off state and brightness state corresponding to each pixel in the actual light pattern matrix of the vehicle at the current moment using the mapping relationship between the actual pixel number and the logical pixel number to obtain a logical light pattern matrix that meets the actual lighting requirements. The output unit is used to convert the logic light pattern matrix that meets the actual lighting requirements into a driver-recognizable vehicle light control signal according to a pre-set communication protocol and output it, so that the drive module can control the switching and brightness of each pixel in the vehicle light at the current moment according to the vehicle light control signal.

8. A storage medium having executable instructions stored thereon, characterized in that, When executed by the processor, this instruction causes the processor to implement the vehicle lighting control method as described in any one of claims 1–6.

9. A vehicle lighting control device, characterized in that, include: One or more processors; Storage device for storing one or more programs. When the one or more programs are executed by the one or more processors, the one or more processors implement the vehicle lighting control method as described in any one of claims 1–6.

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