Vehicle display brightness adjusting method, device and equipment and computer storage medium

Abstract

The embodiment of the invention discloses a display brightness adjusting method, device and equipment of a vehicle and a computer storage medium, and the method comprises the steps: obtaining the brightness change information of a brightness sudden change region when it is predicted that the vehicle is about to drive into the brightness sudden change region, the brightness sudden change area comprises an area of which the brightness change is greater than a brightness change threshold within a preset distance; according to the brightness change information, the display brightness of the vehicle is adjusted before the vehicle enters the brightness sudden change area, so that the display brightness changes monotonically, and the display brightness when the vehicle runs at the target position is matched with the environment brightness of the target position; wherein the target position is the position with the maximum difference between the ambient brightness in the brightness sudden change area and the ambient brightness before the brightness sudden change area.

Description

Technical Field

[0001] The embodiments of the present disclosure relate to the field of display control technology, and more particularly to a method, device, equipment and computer storage medium for adjusting display brightness of a vehicle. Background Art

[0002] With the development of technology, there are more and more displays in cars, especially Head Up Display (HUD), which is generally used to display auxiliary driving information. At present, the brightness adjustment schemes applied to HUD basically use a light sensor facing the front of the car to collect the ambient light intensity. When the change of ambient light intensity reaches a certain threshold, the system caches the collected data and adjusts the brightness after filtering the data.

[0003] Existing vehicle HUD brightness adjustment systems mainly rely on ambient light sensors to detect external light conditions in real time and adjust the brightness of the HUD accordingly. However, this method has problems with response delay and uneven brightness adjustment, especially in situations where light changes drastically, such as when the vehicle suddenly enters or exits a tunnel, which may cause visual discomfort to the driver. In addition, existing systems lack the ability to predict upcoming light changes and cannot prepare in advance and adjust the brightness smoothly. Summary of the invention

[0004] In view of this, the embodiments of the present disclosure are intended to provide a method, device, equipment and computer storage medium for adjusting the display brightness of a vehicle, which can solve the problem of insufficient smoothness in adjusting the display brightness in the prior art.

[0005] The technical solution of the embodiment of the present disclosure is implemented as follows: In a first aspect, an embodiment of the present disclosure provides a method for adjusting display brightness of a vehicle, comprising: When it is predicted that the vehicle is about to enter a brightness sudden change area, brightness change information of the brightness sudden change area is obtained, wherein the brightness sudden change area includes an area where the brightness change is greater than a brightness change threshold within a preset distance; Adjusting the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the brightness change information so that the display brightness changes monotonically, so that the display brightness of the vehicle when traveling at a target location is adapted to the ambient brightness of the target location; The target position is a position where the difference between the ambient brightness in the sudden brightness change area and the ambient brightness before the sudden brightness change area is the largest.

[0006] In a second aspect, an embodiment of the present disclosure provides a display brightness adjustment device for a vehicle, comprising: An acquisition module, used for acquiring brightness change information of a brightness sudden change area when predicting that the vehicle is about to enter the brightness sudden change area, wherein the brightness sudden change area includes an area where the brightness change is greater than a brightness change threshold within a preset distance; an adjusting module, configured to adjust the display brightness of the vehicle before the vehicle enters the sudden brightness change area according to the brightness change information so that the display brightness changes monotonically, so that the display brightness of the vehicle when traveling at a target position is adapted to the ambient brightness of the target position; The target position is a position where the difference between the ambient brightness in the sudden brightness change area and the ambient brightness before the sudden brightness change area is the largest.

[0007] In a third aspect, an embodiment of the present disclosure provides an electronic device, comprising: a processor and a memory; the processor is used to execute instructions stored in the memory to implement the display brightness adjustment method of the vehicle described in the first aspect.

[0008] In a fourth aspect, an embodiment of the present disclosure provides a computer storage medium, wherein the storage medium stores at least one instruction, and the at least one instruction is used to be executed by a processor to implement the method for adjusting the display brightness of a vehicle as described in the first aspect.

[0009] The embodiments of the present disclosure provide a method, device, equipment and computer storage medium for adjusting the display brightness of a vehicle; by predicting the sudden brightness change area that the vehicle is about to enter and adjusting the display brightness of the vehicle in advance, a smoother and more environmentally adaptive brightness transition is achieved, thereby improving driving comfort while ensuring the driver's visual experience under various lighting conditions, reducing visual discomfort and driving risks caused by sudden brightness changes, and improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the composition of a vehicle-mounted system provided in an embodiment of the present disclosure.

[0011] Figure 2 An exemplary top view of a vehicle provided for the present disclosure.

[0012] Figure 3 An exemplary perspective view from the driver's seat of a vehicle is provided for the present disclosure.

[0013] Figure 4 A schematic diagram of the architecture of a head-up display device provided in the present disclosure.

[0014] Figure 5 A flow chart of a method for adjusting the display brightness of a vehicle provided in an embodiment of the present disclosure.

[0015] Figure 6A schematic diagram of brightness changes in a first brightness peripheral area provided in an embodiment of the present disclosure.

[0016] Figure 7 A schematic diagram of brightness changes in a second brightness peripheral area provided in an embodiment of the present disclosure.

[0017] Figure 8 A schematic diagram of brightness changes in a third brightness peripheral area provided in an embodiment of the present disclosure.

[0018] Fig. 9 A schematic diagram of brightness changes in a fourth brightness peripheral area provided in an embodiment of the present disclosure.

[0019] Fig.10 A schematic diagram of a change in ambient brightness caused by an obstruction provided in an embodiment of the present disclosure.

[0020] Fig.11 A schematic diagram of a tunnel with different openings provided in an embodiment of the present disclosure.

[0021] Fig.12 A comparison diagram of display brightness adjustment curves corresponding to different tunnels provided in an embodiment of the present disclosure.

[0022] Fig.13 A curve chart showing the correlation between the adjustment start time and the tunnel exit provided in an embodiment of the present disclosure.

[0023] Fig.14 A comparison diagram of display brightness adjustment between the present disclosure and related technologies is provided for an embodiment of the present disclosure.

[0024] Fig.15 A position relationship diagram between a vehicle, a surrounding brightness area, and a target position is provided in an embodiment of the present disclosure.

[0025] Fig.16 A position relationship diagram of a vehicle and a first position, a target position and a second position is provided in an embodiment of the present disclosure.

[0026] Fig.17 Another display brightness adjustment comparison diagram of the present disclosure and related technologies provided for an embodiment of the present disclosure.

[0027] Fig.18 A linear curve diagram showing the correlation between display brightness and occlusion range provided in an embodiment of the present disclosure.

[0028] Fig.19 A brightness adjustment curve diagram for entering a tunnel in a related technology provided in an embodiment of the present disclosure.

[0029] Fig. 20 A brightness adjustment curve diagram for entering a tunnel in the present disclosure is provided in an embodiment of the present disclosure.

[0030] Fig.21 A brightness adjustment curve diagram for exiting a tunnel in a related technology provided by an embodiment of the present disclosure.

[0031] Fig. 22 A brightness adjustment curve diagram for exiting a tunnel in the present disclosure is provided in an embodiment of the present disclosure.

[0032] Fig.23 A schematic diagram of the structure of a display brightness adjustment device for a vehicle provided in an embodiment of the present disclosure.

[0033] Fig.24 A schematic diagram of the structure of an electronic device provided in an embodiment of the present disclosure.

[0034] The above drawings show clear embodiments of the present disclosure, which will be described in more detail below. These drawings and text descriptions are not intended to limit the scope of the present disclosure in any way, but to illustrate the concepts of the present disclosure to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0035] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0036] like Figure 1 As shown, the vehicle-mounted system 100 includes: a navigation subsystem 110, an environment detection device group 120 for obtaining the vehicle's environment during the vehicle's driving, a vehicle driving state detection device group 130, a data processing unit 140, a display control unit 150, and a display unit 160. The above components or device groups are coupled together through a communication bus 12. In some examples, the communication bus 12 is used for connection and communication between the above components or device groups. It should be noted that Figure 1 Only a portion of the in-vehicle system 100 is shown, not all of the components of the in-vehicle system 100 .

[0037] exist Figure 1In the navigation subsystem 110, a positioning device 111 and a map information storage device 112 are included. The positioning device 111 can locate the position of the vehicle based on the global positioning system (GPS), China's Beidou system, Russia's GLONASS system, Europe's Galileo system, Japan's Quasi-Zenith Satellite System (QZSS), India's Indian Regional Navigation Satellite System (IRNSS) and other positioning systems to obtain the position information of the vehicle. The map information storage device 112 stores map information, and can obtain a navigation path leading to the destination according to the position information obtained from the positioning device 111, and display the position information and the navigation path in the map application.

[0038] exist Figure 1 In the embodiment, the environment detection device group 120 may include an on-vehicle communication device 121, a radar 122, a laser rangefinder 123, and a camera 124. These devices can acquire environmental data representing the surrounding environment of the vehicle.

[0039] The vehicle-mounted communication device 121 can communicate wirelessly with one or more devices directly or via a communication network. These devices that can communicate with the vehicle-mounted communication device 121 can be other vehicles, roadside machines or roadside stations, or mobile terminal devices used by people in the vehicle. In some examples, the vehicle-mounted communication device 121 can use 3G cellular communication, such as code division multiple access (code division multiple access, CDMA), EVDO, global system for mobile communications (global system for mobile communications, GSM) / general packet radio service technology (general packet radio service, GPRS), or 4G cellular communication, such as long term evolution (long term evolution, LTE), or 5G cellular communication. In some examples, the vehicle-mounted communication device 121 can also use WiFi to communicate with a wireless local area network (wireless local area network, WLAN). In some embodiments, the vehicle-mounted communication device 121 can also use infrared links, Bluetooth or ZigBee to communicate directly with devices. In some examples, the vehicle-mounted communication device 121 can also use other wireless protocols to communicate with devices.

[0040] The radar 122 is used to sense objects in the surrounding environment of the vehicle, and can also be used to sense the speed and / or direction of these objects. In some examples, the radar 122 can use electromagnetic waves or lasers as a medium to detect objects based on a time of flight (TOF) method or a phase-shift method, and detect the position of the detected object, the distance to the detected object, and the relative speed. In some examples, in order to be able to detect objects located in front of, behind, or to the side of the vehicle, the radar 122 can be configured at an appropriate position outside the vehicle.

[0041] The laser rangefinder 123 can use laser to sense objects in the environment where the vehicle is located. In some embodiments, the laser rangefinder 123 may include one or more laser sources, a laser scanner, and one or more detectors, as well as other system components. The laser rangefinder 123 can measure obstructions in the environment where the vehicle is located.

[0042] The camera 124 can be used to capture multiple images of the surrounding environment of the vehicle. The camera 124 can be a static camera or a video camera. In some examples, in order to obtain the external image of the vehicle, the camera 124 can be located at an appropriate position outside the vehicle. For example, in order to obtain the image in front of the vehicle, the camera 124 can be configured in the interior of the vehicle close to the front windshield. Alternatively, the camera 124 can be configured around the front bumper or radiator grille. In some examples, in order to obtain the image behind the vehicle, the camera 124 can be configured in the interior of the vehicle close to the rear window glass. Alternatively, the camera 124 can be configured around the rear bumper, trunk or tailgate. In some examples, in order to obtain the image of the side of the vehicle, the camera 124 can be configured in the interior of the vehicle close to at least one of the side windows. Alternatively, the camera 124 can be configured around the side mirrors, fenders or doors.

[0043] exist Figure 1 In the embodiment, the vehicle driving state detection device group 130 may include: a steering angle sensor 131 for detecting the steering angle of the vehicle, a vehicle speed sensor 132 for detecting the driving speed of the vehicle, and an acceleration sensor 133 for detecting the acceleration applied to the vehicle. In some examples, as shown in the dotted box, an inertial sensor 134 for detecting the position and orientation change of the vehicle based on inertial acceleration may also be included. The inertial sensor 134 may be a combination of the acceleration sensor 133 and a gyroscope in a specific implementation process.

[0044] exist Figure 1In the embodiment, the data processing unit 140 can be implemented as a computing system having a memory, a processor, an input / output interface, and a bus connected to these. In some examples, the data processing unit 140 causes the processor to execute multiple commands through program instructions stored in the memory to process the data obtained by the navigation subsystem 110, the environment detection device group 120, and the vehicle driving state detection device group 130. In some examples, the data processing unit 140 can also partially or completely control the driving of the vehicle based on the processed data.

[0045] exist Figure 1 In the figure, as shown in the dotted box, the data processing unit 140, the display control unit 150 and the display unit 160 can serve as the main body of the head-up display (HUD) device 170. The display control unit 150 can process the received data processed by the data processing unit 140, or after receiving the data obtained by the navigation subsystem 110, the environment detection device group 120 and the vehicle driving state detection device group 130, to obtain display information to be displayed, and project the display information onto the windshield of the vehicle through the display unit 160 for display.

[0046] The Head Up Display (HUD) device projects the light of the display image output by the image source onto an imaging window (e.g., an imaging board, a windshield, etc.) through, for example, a reflective optical design, so as to display vehicle status information such as vehicle speed and fuel level, as well as indication information such as navigation and hazard warnings, at an appropriate position in front of the driver. This allows the driver to obtain relevant information such as vehicle speed and fuel level without shifting his line of sight away from the road ahead, thereby improving the driving safety factor and driving experience.

[0047] Specifically, refer to Figure 2 and Figure 3 The head-up display device can be arranged on a vehicle, and the vehicle includes a windshield 204 located at the front of the vehicle. The driver and passengers in the vehicle cabin 208 can see the front of the vehicle through the windshield 204.

[0048] exist Figure 3 In the embodiment of the present invention, the windshield 204 is visually located above the vehicle dashboard 206. The driver can turn the steering wheel 210 in the passenger cabin 208 to steer the vehicle, such as changing lanes, merging and parking the vehicle. In some embodiments, the steering wheel 210 can be retracted or omitted.

[0049] Reference Figure 3 , head-up display device 170 (see Figure 4) displays information 212 (eg, a virtual image) onto a portion of windshield 204 through one or more apertures (eg, aperture 216) in instrument panel 206. Figure 4 An example size of display information 212 is shown, but display information 212 may be presented over a larger or smaller area. Examples of display information 212 include various vehicle information, such as current vehicle speed, current gear of the vehicle's transmission, engine speed, vehicle direction, current infotainment system settings, and / or other vehicle information. Heads-up display device 170 provides information to the vehicle driver without the driver having to look away from objects in front of the vehicle.

[0050] See also Figure 4 In the exemplary implementation architecture of the head-up display device 170 shown in FIG. 1 , the display control unit 150 generates a signal 42 based on the data processed by the data processing unit 40 or the data 420 transmitted by the navigation subsystem 110, the environment detection device group 20, and the vehicle driving state detection device group 30. The communication control circuit is provided in the data processing unit 40 and transmits the display information to the display control unit 150.

[0051] Optionally, the display control unit 150 may obtain the vehicle's driving information and environmental data from the vehicle computer. The current driving information may be obtained from the vehicle computer or a terminal connected to the vehicle computer, and then at least one of the navigation data and the environmental data may be used as target display data according to the driving information, and the target display data and the driving information may be sent to the display unit, which may project the target display data onto the windshield for display.

[0052] The display unit 160 may include a light source 161 and an optical path component 162. The light source 161 outputs light (e.g., a virtual image) based on a signal 42 from the display control unit 150 to display on the windshield 204. For example, the light source 161 may include one or more lasers and output red light, green light, and blue light.

[0053] The display unit 160 is used to receive the target display data and the driving information sent by the display control unit, and project them onto the windshield.

[0054] The optical path component 162 can reflect the output of the light source 161 onto the windshield 204 through the hole 216. The viewer (e.g., the driver) can view the display information 212 in the display area where the display information 212 is projected onto the windshield 204. In some examples, the optical path component 162 may include one or more reflectors (plane mirrors) and concave mirrors (magnifying glasses). The output of the light source 161 is reflected back through the reflector and magnified by the concave mirror and then reflected to the windshield 204 to form a virtual image 40 that can be visually observed by the driver. The visual effect presented by the virtual image 40 is that the virtual image 40 is projected onto the projection surface 41 at a set distance in front of the vehicle, but the real environment remains visible through the projection surface 41. In some examples, the optical path component 162 can also be omitted, and the light source 161 can directly project the display information 212 onto the windshield 204 to form the virtual image 40 on the projection surface 41.

[0055] In the display control method in the related art, during the driving process of the vehicle, the display control unit 150 receives the ambient brightness information determined by the environmental detection device group 120, and controls the display brightness of the display unit 160 based on the ambient brightness information to control the brightness of the image projected on the windshield 204. However, the existing method has the problems of response delay and uneven brightness adjustment, especially in the case of drastic light changes, such as when the vehicle suddenly enters or exits a tunnel, which may cause visual discomfort to the driver. In addition, the existing system lacks the ability to predict upcoming light changes and cannot prepare in advance and smoothly adjust the brightness.

[0056] Based on this, the present disclosure first provides a display control method. Figure 5 A flow chart showing a method for adjusting the display brightness of a vehicle is shown, which can be applied to the display control unit 150 , wherein the method for adjusting the display brightness can include steps S510 to S520 .

[0057] In step S510, when it is predicted that the vehicle is about to enter the brightness sudden change area, the brightness change information of the brightness sudden change area is obtained.

[0058] The sudden brightness change area includes an area where the brightness change is greater than a brightness change threshold within a preset distance.

[0059] In some examples, the display control unit 150 can monitor the road conditions in front of the vehicle through the above-mentioned environmental detection device group 120, such as a laser radar or a camera, and analyze the data to predict potential sudden brightness change areas. The sudden brightness change area is defined as an area within a preset distance in front of the vehicle where the brightness change exceeds a preset brightness change threshold. This threshold is set based on actual driving conditions and safety requirements to identify brightness changes that may have a significant impact on the driver's vision.

[0060] In some examples, the brightness change within a preset distance in the above-mentioned brightness sudden change area is greater than the brightness change threshold, wherein the above-mentioned preset distance may refer to a unit distance, such as 1 meter, 10 meters, etc., or other distances, such as 1.5 meters, 2 meters, etc. The specific setting of the brightness change threshold may be customized based on user needs, such as 10 candela per square meter, 20 candela per square meter, etc., which is not specifically limited in this example implementation. For example, an area within 1 meter where the brightness change value is greater than 10 candela per square meter may be used as the above-mentioned brightness sudden change area.

[0061] Optionally, the display control unit can determine the area with sudden brightness changes based on the data sent by the environmental detection device group 120. The data may include but is not limited to information about light intensity, weather conditions, surrounding buildings or other natural obstructions. The data can also be combined with the vehicle's real-time position and movement direction to predict whether there will be a significant change in brightness in the area that the vehicle is about to enter.

[0062] Once it is predicted that the vehicle is about to enter the sudden brightness change area, the display control unit can start collecting brightness change information of the sudden brightness change area. The brightness change information may include brightness information of each unit distance in the sudden brightness change area and the brightness change law in the sudden brightness change area.

[0063] In step S520, the display brightness of the vehicle is adjusted according to the brightness change information before the vehicle enters the brightness sudden change area so that the display brightness changes monotonically, so that the display brightness of the vehicle when traveling at the target position is adapted to the ambient brightness of the target position.

[0064] After obtaining the above-mentioned brightness change information, a brightness adjustment plan can be formulated and the display brightness of the vehicle can be adjusted before the above-mentioned vehicle enters the area where the brightness changes suddenly. Specifically, the brightness adjustment plan can make the display brightness of the above-mentioned vehicle change monotonically, that is, gradually increase or decrease, which can be determined according to the change of ambient brightness as required.

[0065] The brightness adjustment plan can make the display brightness of the vehicle when it travels to the target location adapt to the ambient brightness of the target location. The mapping relationship between the display brightness and the ambient brightness can be preset and stored in the memory. When adjusting, the corresponding display brightness can be found in the mapping relationship according to the ambient brightness. The mapping relationship includes multiple ambient brightnesses and display brightness adapted to the ambient brightness.

[0066] The target position is a position where the difference between the ambient brightness in the sudden brightness change area and the ambient brightness before the sudden brightness change area is the largest.

[0067] It should be noted that the display brightness can be the display brightness of the HUD, the display brightness of the display screen of the vehicle computer, or the display brightness of the display screen of the rear seat of the vehicle, which is not specifically limited in this example implementation.

[0068] The vehicle display brightness adjustment method provided in the embodiment of the present disclosure achieves a smoother and more environmentally-adaptive brightness transition by predicting the brightness sudden change area that the vehicle is about to enter and adjusting the vehicle display brightness in advance, thereby improving driving comfort while ensuring the driver's visual experience under various lighting conditions, reducing visual discomfort and driving risks caused by sudden brightness changes, and improving driving safety.

[0069] In some exemplary embodiments of the present disclosure, the brightness change of the brightness sudden change area may be a monotonic change or a non-monotonic change. For example, referring to Figure 6 , when the brightness of the sudden brightness change area changes monotonically, the brightness in the sudden brightness change area can be decreasing, refer to Figure 7 , the brightness of the sudden brightness change area can also be increased. In this case, the target position is the position farthest from the vehicle in the sudden brightness change area, that is, the position where the sudden brightness change area ends. Figure 8 When the brightness change of the brightness sudden change area is non-monotonic, the brightness of the brightness sudden change area may decrease first and then increase. Fig. 9 , the brightness of the sudden brightness change area may also increase first and then decrease. At this time, the target position is the position corresponding to the brightness peak in the sudden brightness change area. The change in brightness may be linear or nonlinear. The specific change method is determined according to the shape of the obstruction and the degree of obstruction of the light, which will not be described in detail here.

[0070] It should be noted that the sudden brightness change area may be caused by the blocking of light by buildings or other obstructions. For example, Fig.10 The obstructions may be tunnels, tall buildings, trees, etc., which are not specifically limited in this example. The light may be natural light or artificial light, such as lighting, fire, etc., which will not be elaborated here.

[0071] In some examples, when the vehicle travels to a first position, the display brightness of the vehicle is adjusted, wherein the first position is between the current position of the vehicle and the brightness sudden change area. For example, continue to refer to Fig.10, the first position is between the shadow of the high-rise building and the vehicle. Among them, the ambient brightness within the preset range of the first position is equal within the threshold range. The preset range can be 10 meters, 20 meters, etc., which will not be described in detail in this example implementation. Among them, the threshold range is an acceptable error range, and the threshold range can be the percentage difference between the two, such as 5%, 6%, etc., or it can be a specific brightness value, such as 2 candelas per square meter, 3 candelas per square meter, etc. For example, when the difference in ambient brightness within the preset range of the first position is within 5%, it can be determined that the ambient brightness within the preset range of the first position is equal. Alternatively, when the maximum difference in ambient brightness within the preset range of the first position is less than 3 candelas per square meter, it is determined that the ambient brightness within the preset range of the first position is equal.

[0072] Optionally, the first position may be determined based on the vehicle speed and the distance between the vehicle and the area with sudden brightness changes. When determining the first position, the ambient brightness of the target position may also be considered. The specific determination method will not be described in detail herein.

[0073] In some examples, when determining the above-mentioned area of ​​sudden brightness change, the navigation information can be combined to determine the obstructions within a first preset distance from the vehicle in the vehicle's route, and the impact of the obstructions on the environment can be determined based on the current time and current weather information to determine the area of ​​sudden brightness change. For example, when the above-mentioned building is a tunnel, the size of the area of ​​sudden brightness change is related to the relative position of the sun and the tunnel input and the size of the tunnel entrance and exit.

[0074] Reference Fig.11 , assuming that the vehicle is traveling in different tunnels, and the exit of tunnel 1 is larger than the exit of tunnel 2, the brightness change at the tunnel exit can be referred to Fig.12 It is found that the length of the sudden brightness change region of Tunnel 1 is greater than the length of the sudden brightness change region of Tunnel 2 .

[0075] That is to say, when the above-mentioned obstruction is a tunnel, the above-mentioned sudden brightness change area can be determined based on the current time and current weather information as well as the size of the entrance and exit of the tunnel.

[0076] Optionally, when obtaining the above-mentioned sudden brightness change area, the predicted ambient brightness within a second preset distance from the vehicle in the vehicle's driving route can also be obtained. The ambient brightness can be obtained using a sensor, and the specific acquisition method is not repeated in this example implementation.

[0077] After completing the acquisition of the area with sudden brightness changes, the display brightness of the vehicle can be adjusted before the vehicle enters the area with sudden brightness changes. Specifically, the display brightness of the vehicle can be adjusted starting from the first position, and after the vehicle drives to the target position, the display brightness of the vehicle is adapted to the ambient brightness of the target position.

[0078] Optional, see Fig.13 As shown, when the above-mentioned obstruction is a tunnel, the distance between the above-mentioned first position and the tunnel entrance is positively correlated with the size of the entrance and exit of the above-mentioned tunnel. For example, the corresponding correlation curve can refer to Fig.13 .

[0079] For example, when adjusting the brightness of a vehicle, refer to Fig.14 The adjustment method in the related art is to start adjusting the display brightness of the vehicle when entering the area with sudden brightness changes, and the adjustment curve is such as S1. The present invention starts adjusting before the vehicle enters the area with sudden brightness changes, and the adjustment curve is such as S2. By comparing S1 and S2, the display brightness adjustment method of the present invention can be obtained, which can make the adjustment smoother.

[0080] During adjustment, the maximum brightness difference of the brightness sudden change area may be determined first, and then the display brightness of the vehicle may be adjusted before the vehicle enters the brightness sudden change area according to the maximum brightness difference, so that the display brightness changes monotonically.

[0081] Specifically, the first distance between the vehicle and the brightness sudden change area and the second distance between the vehicle and the target position may be determined first, and then the display brightness of the vehicle may be adjusted according to the first distance, the second distance and the maximum brightness difference.

[0082] For example, refer to Fig.15 , the first time when the vehicle enters the brightness sudden change area and the second time when the vehicle drives to the target position P can be determined based on the driving speed and the first distance d1 and the second distance d2, and then the adjustment start time and the unit adjustment brightness are determined based on the above first time and second time, wherein the unit adjustment brightness is the value of the display brightness adjusted within unit time.

[0083] The start time can be determined based on the first time and the second time, the difference between the first time and the second time can be determined, and then the advance coefficient can be determined. The advance coefficient can be customized according to user needs, for example, 0.5, 0.6, etc. The advance time can be determined based on the above difference and the advance coefficient, and then the start time can be determined based on the above first time and the advance time. After determining the start time, the adjustment time can be determined based on the above second time and the above start time, and then the unit adjustment brightness can be determined based on the adjustment time and the maximum brightness difference.

[0084] Optionally, when the above-mentioned brightness adjustment process is linearly adjusted, the unit adjustment brightness can be obtained by dividing the maximum brightness difference by the above-mentioned adjustment time. When the above-mentioned brightness adjustment process is nonlinear adjustment, the brightness adjustment curve can be fitted based on the display brightness of the above-mentioned target position, the display brightness when the adjustment starts, the maximum brightness difference and the above-mentioned brightness adjustment time to obtain the unit adjustment brightness corresponding to each moment, so that the display control unit adjusts the display brightness of the vehicle according to the above-mentioned unit adjustment brightness.

[0085] In some examples, when the brightness change in the above-mentioned brightness sudden change area is a non-monotonic change, the above-mentioned brightness sudden change area can be divided into a first sub-area and a second sub-area, wherein the first sub-area and the second sub-area are continuous, and the brightness change trends of the first sub-area and the second sub-area are opposite, and the above-mentioned target position is the junction of the above-mentioned first sub-area and the second sub-area.

[0086] The above-mentioned display brightness adjustment method may also include adjusting the display brightness when the vehicle travels to the target position, so that the display brightness of the vehicle changes monotonically, so that the display brightness when the vehicle travels to the second position is adapted to the ambient brightness at the second position, wherein the second position is located on the side of the brightness sudden change area away from the vehicle, and the ambient brightness within a preset range of the second position is equal within a threshold range, wherein the specific values ​​of the preset range and the threshold range can refer to the description of the first position, which will not be elaborated here, and can also be customized according to user needs, which will not be elaborated in this example implementation.

[0087] In some examples, reference Fig.16 , the vehicle starts to adjust the display brightness at the first position A, completes the first stage of brightness adjustment at the target position P, then starts to adjust the display brightness from the target position P, and completes the display brightness adjustment at the second position B. The corresponding brightness adjustment curve is as follows: Fig.17 As shown, S3 represents the display brightness adjustment process in the prior art, and S4 represents the display brightness adjustment process of the present disclosure. By comparing S3 and S4, it can be seen that the adjustment process of the display brightness adjustment method of the vehicle disclosed in the present disclosure is smoother.

[0088] Optional, take adjusting the display brightness of HUD as an example, refer to Fig.18 , when the occlusion range is larger, the display brightness is lower, and the display brightness is adjusted before the occlusion, which can make the adjustment of the actual brightness smoother.

[0089] The vehicle display brightness adjustment method provided in the embodiment of the present disclosure achieves a smoother and more environmentally-adaptive brightness transition by predicting the brightness sudden change area that the vehicle is about to enter and adjusting the vehicle display brightness in advance, thereby improving driving comfort while ensuring the driver's visual experience under various lighting conditions, reducing visual discomfort and driving risks caused by sudden brightness changes, and improving driving safety.

[0090] Taking the adjustment of HUD display brightness as an example, when entering a tunnel, refer to Fig.19 and Fig. 20 , Fig.19 is a display brightness adjustment curve in the related art, Fig. 20 is the adjustment curve of the display brightness disclosed in the present invention, compared with Fig.19 and Fig. 20 It can be seen that the present invention has started brightness adjustment before entering the tunnel, and after entering the tunnel, the brightness has been adjusted to adapt to the display brightness in the tunnel, and the brightness adjustment in the present invention is smoother, and the rate of change of the adjustment process is slow, which can improve driving comfort while ensuring the driver's visual experience under various lighting conditions, reduce visual discomfort and driving risks caused by sudden changes in brightness, and improve driving safety.

[0091] When exiting a tunnel, refer to Fig.21 and Fig. 22 , Fig.21 is a display brightness adjustment curve in the related art, Fig. 22 is the adjustment curve of the display brightness disclosed in the present invention, compared with Fig.21 and Fig. 22 It can be seen that the present invention has started brightness adjustment before exiting the tunnel, and after exiting the tunnel, the brightness has been adjusted to adapt to the display brightness outside the tunnel, and the brightness adjustment in the present invention is smoother, and the rate of change of the adjustment process is slow, which can improve driving comfort while ensuring the driver's visual experience under various light conditions, reduce visual discomfort and driving risks caused by sudden changes in brightness, and improve driving safety.

[0092] Furthermore, the present disclosure also provides a display brightness adjustment device for a vehicle, referring to Fig.23 As shown, the display brightness adjustment device 2300 of a vehicle may include an acquisition module 2310 and an adjustment module 2320. Among them: The acquisition module 2310 can be used to acquire brightness change information of a sudden brightness change area when predicting that the vehicle is about to enter the sudden brightness change area, wherein the sudden brightness change area includes an area where the brightness change is greater than a brightness change threshold within a preset distance.

[0093] The adjustment module 2320 can be used to adjust the display brightness of the vehicle according to the brightness change information before the vehicle enters the brightness sudden change area so that the display brightness changes monotonically, so that the display brightness of the vehicle when it is traveling at the target position is adapted to the ambient brightness of the target position; wherein the target position is the position where the difference between the ambient brightness in the brightness sudden change area and the ambient brightness before the brightness sudden change area is the largest.

[0094] The acquisition module 2310 can be used to determine the degree of change of the ambient brightness caused by the obstruction according to the current time and the current weather information, so as to predict the brightness change information of the area where the brightness changes suddenly.

[0095] In some examples, the adjustment module 2320 can also be used to adjust the display brightness of the vehicle when the vehicle travels to a first position, wherein the first position is between the current position of the vehicle and the brightness sudden change area, and the ambient brightness within a preset range of the first position is equal within a threshold range.

[0096] In some examples, the adjustment module 2320 can also be used to obtain the maximum brightness difference of the brightness sudden change area; and adjust the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the maximum brightness difference so that the display brightness changes monotonically.

[0097] In some examples, the adjustment module 2320 can also be used to predict a first distance between the vehicle and the area with sudden brightness changes, and a second distance between the vehicle and the target location; and adjust the display brightness of the vehicle before the vehicle enters the area with sudden brightness changes based on the first distance, the second distance and the maximum brightness difference.

[0098] In some examples, the adjustment module 2320 can also be used to obtain the vehicle's driving speed, and determine the adjustment start time and unit adjustment brightness based on the driving speed, the first distance, and the second distance; and adjust the display brightness of the vehicle according to the adjustment start time and the unit adjustment brightness value.

[0099] In some examples, the brightness sudden change area includes a continuous first sub-area and a second sub-area, and the brightness change trends of the first sub-area and the second sub-area are opposite; the target position is located between the first sub-area and the second sub-area; the vehicle's display brightness adjustment device 2300 can also be used to adjust the display brightness when the vehicle travels to the target position, so that the display brightness changes monotonically, so that the display brightness when the vehicle travels to the second position is adapted to the ambient brightness of the second position; the second position is located on the side of the brightness sudden change area away from the vehicle, and the ambient brightness within a preset range of the second position is equal within a threshold range.

[0100] In some examples, the vehicle's display brightness adjustment device 2300 can also be used to determine areas of sudden brightness changes based on navigation information and current weather information.

[0101] In some examples, the vehicle's display brightness adjustment device 2300 can also be used to determine obstructions within a first preset distance from the vehicle in the vehicle's route based on navigation information; determine the degree of change in ambient brightness caused by obstructions based on current time and current weather information to determine the area of ​​sudden brightness change.

[0102] In some examples, the vehicle display brightness adjustment device 2300 can also be used to obtain the predicted ambient brightness within a second preset distance from the vehicle in the vehicle's driving route; and determine the brightness sudden change area based on the predicted ambient brightness.

[0103] It should be understood that the above-mentioned device embodiments are only illustrative, and the device of the present disclosure can also be implemented in other ways. For example, the division of units / modules in the above-mentioned embodiments is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units, modules or components can be combined, or can be integrated into another system, or some features can be ignored or not executed.

[0104] In addition, unless otherwise specified, each functional unit / module in each embodiment of the present disclosure may be integrated into one unit / module, or each unit / module may exist physically separately, or two or more units / modules may be integrated together. The above-mentioned integrated unit / module may be implemented in the form of hardware or in the form of a software program module.

[0105] If the integrated unit / module is implemented in the form of hardware, the hardware may be a digital circuit, an analog circuit, etc. The physical implementation of the hardware structure includes but is not limited to transistors, memristors, etc. Unless otherwise specified, the processor may be any appropriate hardware processor, such as a CPU, a GPU, an FPGA, a DSP, an ASIC, etc. Unless otherwise specified, the storage unit may be any appropriate magnetic storage medium or magneto-optical storage medium, such as a resistive random access memory (RRAM), a dynamic random access memory (DRAM), a static random access memory (SRAM), an enhanced dynamic random access memory (EDRAM), a high-bandwidth memory (HBM), a hybrid memory cube (HMC), etc.

[0106] If the integrated unit / module is implemented in the form of a software program module and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the technical solution of the present disclosure, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a memory and includes several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the various embodiments of the present disclosure. The aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, disk or optical disk, etc. Various media that can store program codes.

[0107] Please refer to Fig.24 , which shows a structural block diagram of an electronic device provided by an exemplary embodiment of the present disclosure. In some examples, the electronic device may be at least one of a smart phone, a smart watch, a desktop computer, a laptop, a virtual reality terminal, an augmented reality terminal, a wireless terminal, and a laptop computer. The electronic device has a communication function and can access a wired network or a wireless network. The electronic device may generally refer to one of a plurality of terminals, and those skilled in the art may know that the number of the above terminals may be more or less. It is understandable that the electronic device undertakes the calculation and processing work of the technical solution of the present disclosure, and the embodiments of the present disclosure are not limited to this.

[0108] like Fig.24 As shown, the electronic device 2400 may include: at least one processor 2410 , a memory 2420 , and a communication interface 2430 .

[0109] The memory 2420 is used to store programs. Specifically, the programs may include program codes, and the program codes include computer operation instructions.

[0110] The memory 2420 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

[0111] The processor 2410 is used to execute the computer-executable instructions stored in the memory 2420 to implement the vehicle display brightness adjustment method described in the above method embodiment. The processor 2410 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present disclosure.

[0112] The electronic device 2400 may also include a communication interface 2430, so that it can communicate and interact with external devices through the communication interface 2430. In a specific implementation, if the communication interface 2430, the memory 2420 and the processor 2410 are implemented independently, the communication interface 2430, the memory 2420 and the processor 2410 can be connected to each other through a bus and complete the communication between each other. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc., but it does not mean that there is only one bus or one type of bus.

[0113] Optionally, in a specific implementation, if the communication interface 2430, the memory 2420 and the processor 2410 are integrated on a chip, the communication interface 2430, the memory 2420 and the processor 2410 can complete communication through an internal interface.

[0114] The present disclosure also provides a computer-readable storage medium, which may include: a U disk, a mobile hard disk, a read-only memory, a random access memory, a disk or an optical disk, and other media that can store program codes. Specifically, the computer-readable storage medium stores program instructions, and the program instructions are used for the display brightness adjustment method of the vehicle in the above-mentioned embodiment.

[0115] The embodiments of the present disclosure also provide a computer program product, which includes computer instructions stored in a computer-readable storage medium; a processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device executes to implement the vehicle display brightness adjustment method of each of the above embodiments.

[0116] Those skilled in the art should be aware that in one or more of the above examples, the functions described in the embodiments of the present disclosure can be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions can be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another. The storage medium can be any available medium that a general or special-purpose computer can access.

[0117] In the above embodiments, the description of each embodiment has its own emphasis. For the part not described in detail in a certain embodiment, please refer to the relevant description of other embodiments. The technical features of the above embodiments can be combined arbitrarily. In order to make the description concise, all possible combinations of the technical features in the above embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0118] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the inventions claimed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary technical means in the art that are not claimed in the present disclosure.

[0119] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A method for adjusting display brightness of a vehicle, characterized in that: include: When it is predicted that the vehicle is about to enter a brightness sudden change area, brightness change information of the brightness sudden change area is obtained, wherein the brightness sudden change area includes an area where the brightness change is greater than a brightness change threshold within a preset distance; Adjusting the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the brightness change information so that the display brightness changes monotonically, so that the display brightness of the vehicle when traveling at a target location is adapted to the ambient brightness of the target location; The target position is a position where the difference between the ambient brightness in the sudden brightness change area and the ambient brightness before the sudden brightness change area is the largest.

2. The method according to claim 1, characterized in that Adjusting the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the brightness change information includes: When the vehicle travels to a first position, the display brightness of the vehicle is adjusted, wherein the first position is located between the current position of the vehicle and the brightness sudden change area, and the ambient brightness within a preset range of the first position is equal within a threshold range.

3. The method according to claim 1, characterized in that The brightness sudden change area includes a continuous first sub-area and a second sub-area, and the brightness change trends of the first sub-area and the second sub-area are opposite; The target position is located at the junction of the first sub-area and the second sub-area; The method further comprises: When the vehicle travels to the target position, adjusting the display brightness so that the display brightness changes monotonically, so that the display brightness when the vehicle travels to the second position is adapted to the ambient brightness of the second position; The second position is located at a side of the brightness sudden change area away from the vehicle, and the ambient brightness within a preset range of the second position is equal within a threshold range.

4. The method according to claim 1, characterized in that: The method further comprises: The brightness sudden change area is determined according to the navigation information and the current weather information.

5. The method according to claim 4, characterized in that The determining the brightness sudden change area according to the navigation information and the current weather information includes: Determine, based on the navigation information, an obstruction within a first preset distance from the vehicle in the vehicle's driving route; The degree of change of the ambient brightness caused by the obstruction is determined according to the current time and the current weather information to determine the brightness sudden change area.

6. The method according to claim 5, characterized in that The obtaining of brightness change information of the area with sudden brightness change includes: The degree of change of the ambient brightness caused by the shielding object is determined according to the current time and the current weather information, so as to predict the brightness change information of the brightness sudden change area.

7. The method according to claim 1, characterized in that The method further comprises: Obtaining predicted ambient brightness within a second preset distance from the vehicle in the vehicle's driving route; The brightness sudden change area is determined according to the predicted ambient brightness.

8. The method according to claim 1, characterized in that The step of adjusting the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the brightness change information so that the display brightness changes monotonically includes: Get the maximum brightness difference in the area where brightness changes suddenly; The display brightness of the vehicle is adjusted according to the maximum brightness difference before the vehicle enters the brightness sudden change area so that the display brightness changes monotonically.

9. The method according to claim 8, characterized in that The step of adjusting the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the maximum brightness difference includes: Predicting a first distance between the vehicle and the brightness sudden change area, and a second distance between the vehicle and the target position; The display brightness of the vehicle is adjusted according to the first distance, the second distance, and the maximum brightness difference before the vehicle enters the brightness sudden change area.

10. The method according to claim 9, characterized in that Adjusting the display brightness of the vehicle before the vehicle enters the brightness sudden change area according to the first distance, the second distance, and the maximum brightness difference includes: Acquire the driving speed of the vehicle, and determine the adjustment start time and the unit adjustment brightness value based on the driving speed, the first distance, and the second distance; The display brightness of the vehicle is adjusted according to the adjustment start time and the unit adjustment brightness value.

11. A display brightness adjustment device for a vehicle, characterized in that: include: An acquisition module, used for acquiring brightness change information of a brightness sudden change area when predicting that the vehicle is about to enter the brightness sudden change area, wherein the brightness sudden change area includes an area where the brightness change is greater than a brightness change threshold within a preset distance; an adjusting module, configured to adjust the display brightness of the vehicle before the vehicle enters the sudden brightness change area according to the brightness change information so that the display brightness changes monotonically, so that the display brightness of the vehicle when traveling at a target position is adapted to the ambient brightness of the target position; The target position is a position where the difference between the ambient brightness in the sudden brightness change area and the ambient brightness before the sudden brightness change area is the largest.

12. An electronic device, characterized in that: The electronic device comprises: a processor and a memory; the processor is used to execute instructions stored in the memory to implement the display brightness adjustment method of a vehicle as described in any one of claims 1 to 10.

13. A computer storage medium, characterized in that: The storage medium stores at least one instruction, and the at least one instruction is used to be executed by a processor to implement the display brightness adjustment method for a vehicle as described in any one of claims 1 to 10.

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