Hud picture brightness adjustment method and device, equipment, storage medium and vehicle

Abstract

The present disclosure relates to a HUD picture brightness adjustment method, device, equipment, storage medium and vehicle. In the embodiment of the present disclosure, the real-time distance from the vehicle to the target object is obtained, the vehicle displays a HUD picture, and the target object is a position or area where the ambient brightness changes. If the real-time distance meets the set condition, the brightness adjustment information of the HUD picture is determined based on the real-time distance or the real-time driving speed of the vehicle. In the time period before the vehicle reaches the target object, the display brightness of the HUD picture is adjusted according to the brightness adjustment information. The display brightness of the HUD picture can be adjusted in advance before the vehicle reaches the target object, ensuring the timeliness of the brightness adjustment of the HUD picture, reducing or avoiding the delay of the brightness adjustment, allowing the user's eyes to adapt to the brightness change of the HUD picture in advance, making the display brightness of the HUD picture reach the most comfortable brightness state of the human eye when the vehicle enters or exits the target object, and improving the user's use experience and driving safety.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of display, and in particular, to a HUD picture brightness adjustment method, device, equipment, storage medium and vehicle. BACKGROUND

[0002] Currently, in order to improve the driving safety of a vehicle, some information (such as driving information such as speed and navigation) required by the user (such as the driver, passenger, etc.) can be projected to the user by a head-up display (HUD) system, so that the user can see the required information without lowering or turning his head, so that the user's line of sight can be kept on the road to improve the safety of driving.

[0003] Since the image light projected by the HUD system will be incident to the user's eyes to enable the user to see the picture and thus obtain the information displayed in the picture, the brightness of the picture projected by the HUD system needs to be adjusted to adapt to the ambient brightness, so as to prevent the user from feeling dazzling due to the picture being too bright, or the user from not being able to see the picture clearly due to the picture brightness being too low. Therefore, in the related art, the HUD system adjusts the display brightness of the HUD picture by sensing the ambient brightness through a light sensor, so that the display brightness of the HUD picture adapts to the light brightness. This has no effect in the case of weak changes in ambient brightness. However, when the vehicle passes through a tunnel section, a bridge hole, an underground garage or other environments with relatively sharp and sudden changes in ambient brightness, the sensing of the light sensor and the control based on the sensing have a delay, which causes the brightness adjustment of the HUD picture to be not timely, resulting in the brightness of the HUD picture being too high or too low for a period of time, which causes discomfort to the driver's eyes and affects the driving safety and use experience. SUMMARY

[0004] To solve the above technical problems, the present disclosure provides a HUD picture brightness adjustment method, device, equipment, storage medium and vehicle.

[0005] A first aspect of the embodiments of the present disclosure provides a HUD picture brightness adjustment method, which comprises:

[0006] obtaining a real-time distance from a vehicle to a target object, the vehicle displaying a HUD picture, and the target object being a position or area where the ambient brightness changes;

[0007] if the real-time distance meets a set condition, determining brightness adjustment information of the HUD picture based on the real-time distance or a real-time driving speed of the vehicle;

[0008] adjusting the display brightness of the HUD picture according to the brightness adjustment information within a time period before the vehicle reaches the target object.

[0009] The second aspect of the embodiments of the present disclosure provides a HUD picture brightness adjustment device, the device comprises:

[0010] An acquisition module is configured to acquire a real-time distance from a vehicle to a target object, the vehicle displays a HUD picture, and the target object is a position or region where the ambient brightness changes;

[0011] A determination module is configured to determine brightness adjustment information of the HUD picture based on the real-time distance or a real-time driving speed of the vehicle if the real-time distance meets a set condition.

[0012] An adjustment module is configured to adjust the display brightness of the HUD picture according to the brightness adjustment information within a time period before the vehicle reaches the target object.

[0013] The third aspect of the embodiments of the present disclosure provides a HUD display device, which comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the HUD picture brightness adjustment method of the first aspect can be implemented.

[0014] The fourth aspect of the embodiments of the present disclosure provides a computer readable storage medium, which stores a computer program, and when the computer program is executed by the processor, the HUD picture brightness adjustment method of the first aspect can be implemented.

[0015] The fifth aspect of the embodiments of the present disclosure provides a vehicle, which comprises the HUD picture brightness adjustment device of the second aspect, the HUD display device of the third aspect, or the computer readable storage medium of the fourth aspect.

[0016] Compared with the prior art, the technical solutions provided by the embodiments of the present disclosure have the following advantages:

[0017] In the embodiments of the present disclosure, the real-time distance from the vehicle to the target object is acquired, the vehicle displays the HUD picture, and the target object is the position or region where the ambient brightness changes. If the real-time distance meets the set condition, the brightness adjustment information of the HUD picture is determined based on the real-time distance or the real-time driving speed of the vehicle. The display brightness of the HUD picture is adjusted according to the brightness adjustment information within the time period before the vehicle reaches the target object. The display brightness of the HUD picture can be adjusted in advance before the vehicle reaches the target object according to the real-time distance from the vehicle to the target object or the real-time driving speed of the vehicle, the timeliness of the brightness adjustment of the HUD picture is ensured, the delay of the brightness adjustment of the HUD picture is reduced or avoided, the user's eyes can be adapted to the brightness change of the HUD picture in advance, the sudden change of the display brightness of the HUD picture is avoided, the display brightness of the HUD picture reaches the most comfortable brightness state of the human eyes when the vehicle enters or exits the target object, and the user's use experience and driving safety are improved. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a flowchart of a method for adjusting the brightness of a HUD screen according to an embodiment of this disclosure;

[0021] Figure 2 This is a flowchart of another HUD screen brightness adjustment method provided in this embodiment;

[0022] Figure 3a This is a schematic diagram illustrating the relationship between the real-time distance between a vehicle and a target object and the brightness value of the HUD screen when the vehicle enters the target object, according to an embodiment of this disclosure.

[0023] Figure 3b This is a schematic diagram illustrating the relationship between the real-time distance between a vehicle and a target object and the brightness value of the HUD screen when the vehicle drives away from the target object, according to an embodiment of this disclosure.

[0024] Figure 4 This is a flowchart of another HUD screen brightness adjustment method provided in this disclosure embodiment;

[0025] Figure 5 This is a flowchart of another HUD screen brightness adjustment method provided in this disclosure embodiment;

[0026] Figure 6 This is a schematic diagram of the structure of a HUD screen brightness adjustment device provided in an embodiment of this disclosure;

[0027] Figure 7 This is a schematic diagram of the structure of a HUD display device provided in an embodiment of this disclosure. Detailed Implementation

[0028] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0029] Many specific details are set forth in the following description in order to provide a thorough understanding of the present disclosure. However, the present disclosure can be practiced according to other embodiments that do not require some of the specific details described below. It is understood that the present disclosure can be practiced with only some of the described embodiments, and that the scope of the present disclosure is not limited to those embodiments specifically described herein.

[0030] It should be understood that various steps of the method embodiments of the present disclosure can be performed in different orders and / or in parallel. In addition, the method embodiments can include additional steps and / or omit performing the steps shown. The scope of the present disclosure is not limited in this regard.

[0031] It should be noted that, in the present document, relational terms such as "first" and "second", and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0032] It should be noted that the terms "a" and "an" and "the" and "at least one" and "one or more" are used interchangeably herein to refer to one or more than one instance of the element that the term describes.

[0033] Currently, in order to improve the driving safety of a vehicle, some information (e.g., driving information such as speed, navigation, etc.) that is needed can be projected to a user (e.g., a driver, a passenger, etc.) to see by a head-up display (HUD) system, so that the user can see the needed information as much as possible without lowering or turning his / her head, and the user's line of sight can be kept on the road to improve the safety of driving.

[0034] Since the image light projected by the HUD system is incident to the eyes of the user to enable the user to see the picture and obtain the information displayed in the picture, the brightness of the picture projected by the HUD system needs to be adjusted to adapt to the ambient brightness, so as to prevent the user from feeling dazzling due to the picture being too bright, or the user from being unable to see the picture due to the picture being too low in brightness. To this end, in the related art, the HUD system adjusts the display brightness of the HUD picture by sensing the ambient brightness through a light sensor, so that the display brightness of the HUD picture adapts to the ambient brightness. However, in the case of a weak change in the ambient brightness, this has no effect. However, when the vehicle passes through an environment with a relatively sharp and sudden change in the ambient brightness, such as a tunnel section, a bridge hole, an underground garage, and the like, due to the delay in sensing by the light sensor and control based on the sensing, the brightness of the HUD picture is not adjusted in time, resulting in the brightness of the HUD picture being too high or too low for a period of time, which causes discomfort to the eyes of the driver and affects driving safety and the use experience. For example, during the day, when the vehicle enters an environment with a relatively sharp and sudden change in the ambient brightness, such as a tunnel section, a bridge hole, an underground garage, and the like, from a normal road, due to the delay in sensing by the light sensor and control based on the sensing, the brightness of the HUD picture is not adjusted in time, resulting in the brightness of the HUD picture being too high for a period of time; when the vehicle exits the environment with a relatively sharp and sudden change in the ambient brightness, such as a tunnel section, a bridge hole, an underground garage, and the like, from a normal road, due to the delay in sensing by the light sensor and control based on the sensing, the brightness of the HUD picture is not adjusted in time, resulting in the brightness of the HUD picture being too low for a period of time.

[0035] In view of the defects of the related art in the adjustment of the brightness of the HUD picture, the embodiments of the present disclosure provide a HUD picture brightness adjustment method, device, equipment, storage medium, and vehicle, which can predict the time when the vehicle reaches a target object according to the real-time distance from the vehicle to the target object or the real-time driving speed of the vehicle, and adjust the display brightness of the HUD picture in advance, so that the display brightness of the HUD picture adapts to the ambient brightness at the target object when the vehicle reaches the target object, ensuring the timeliness of the brightness adjustment and avoiding or reducing the delay.

[0036] The aforementioned target object can be a position or region with a relatively large change in the ambient brightness. The relatively large change can be that the difference in the ambient brightness within a certain range before and after the target object is greater than or equal to a first threshold value. For example, if the difference in the ambient brightness 50 meters before the entrance of a tunnel and 50 meters after the entrance of the tunnel is greater than or equal to the first threshold value, the entrance of the tunnel is the target object. The first threshold value can be determined as needed, and the embodiments are not limited in this regard. For example, the first threshold value can be determined by collecting the difference in the ambient brightness of a plurality of different tunnel entrances, underground parking lot entrances, and the like.

[0037] The HUD picture brightness adjustment method provided by the embodiments of the present disclosure can be executed by a HUD display device, which can be understood as any device that can have a HUD picture display function and data processing and computing capabilities, or can also be executed by other data processing devices with computing capabilities. The device can communicate with the HUD display device configured on the vehicle, and the device can be configured on the vehicle or set in the cloud, and the present disclosure does not make any limitation in this regard.

[0038] In order to better understand the inventive concept of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described below in conjunction with exemplary embodiments.

[0039] Figure 1 is a flowchart of a HUD picture brightness adjustment method provided by the embodiments of the present disclosure, as shown in Figure 1 The HUD picture brightness adjustment method provided by the embodiments of the present disclosure can include steps 110-130.

[0040] Step 110, acquiring a real-time distance from a vehicle to a target object, the vehicle displays a HUD picture, and the target object is a position or area where the ambient brightness changes.

[0041] The target object in the embodiments of the present disclosure can be understood as a position or area where the ambient brightness changes greatly, and the great change can be that the ambient brightness difference within a certain range before and after the target object is greater than or equal to a first threshold value. For example, the ambient brightness difference of 50 meters before the tunnel entrance and 50 meters after the tunnel entrance is greater than or equal to the first threshold value, and the tunnel entrance is the target object. The first threshold value can be determined as needed, and the present embodiment does not make any limitation in this regard. For example, the first threshold value can be determined by collecting the ambient brightness difference of a plurality of different tunnel entrances, underground parking lot entrances and the like. The target object can include a target road entrance or a target road exit, and the target road can include a tunnel, an underground parking lot road, a bridge hole road, etc.

[0042] In the embodiments of the present disclosure, a HUD display device is configured on the vehicle, and a HUD picture is displayed on the vehicle, for example, the HUD picture can be displayed on the front windshield of the vehicle.

[0043] In some embodiments, the HUD display device can determine the real-time distance of the vehicle relative to the target object according to the detection data and the high-precision map data of the vehicle. The detection data of the vehicle can be understood as the data collected by the sensors configured on the vehicle, which can include road information around the vehicle, etc., and the sensors can include cameras, laser radars, etc. The HUD display device can communicate with the sensors configured on the vehicle.

[0044] The high-definition map data can include specific position information of various elements such as lane lines, traffic indication signs, target objects, etc. on the road, and the HUD display device can obtain the high-definition map data from a vehicle infotainment device or through the cloud, without limitation. Based on the detection data of the vehicle and the high-definition map data, the real-time position of the vehicle can be accurately positioned, and the target position of the target object can be obtained from the high-definition map data, and then the real-time distance of the vehicle relative to the target object can be determined based on the real-time position of the vehicle and the target position of the target object.

[0045] In step 120, if the real-time distance meets the set condition, the brightness adjustment information of the HUD picture is determined based on the real-time distance or the real-time driving speed of the vehicle.

[0046] The set condition in the embodiments of the present disclosure can be understood as the minimum distance triggering the low-latency HUD picture brightness adjustment based on positioning of the HUD display device. For example, the real-time distance meeting the set condition can be that the real-time distance is less than or equal to a preset distance threshold, which can be set as needed, for example, 100 m, which is not limited here. In some embodiments, the HUD display device can obtain a target road type corresponding to the target object, and then determine a target preset distance threshold corresponding to the target road type based on a corresponding relationship between the road type and the preset distance threshold, and determine the target preset distance threshold as the set condition.

[0047] In the embodiments of the present disclosure, if the real-time distance meets the set condition, it means that the vehicle will pass through a position or area with a large change in ambient brightness. The common way of adjusting the brightness of the HUD picture based on the ambient brightness detected by the brightness sensor will have obvious hysteresis, so the brightness of the HUD picture is adjusted based on the real-time distance or the real-time driving speed of the vehicle.

[0048] In some embodiments, if the real-time distance meets the set condition, the HUD display device can determine a target brightness value corresponding to the real-time distance based on a first corresponding relationship between a preset distance and a brightness value of the HUD picture, and determine the target brightness value as the brightness adjustment information of the HUD picture.

[0049] In another embodiment, if the real-time distance meets the set condition, the HUD display device can determine a real-time brightness change speed corresponding to the real-time driving speed at each time point based on a corresponding relationship between a preset driving speed and a brightness change speed, and determine a target brightness change speed as the real-time brightness change speed in a time period before the vehicle reaches the target object, and determine the target brightness change speed as the brightness adjustment information of the HUD picture.

[0050] Step 130, adjusting the display brightness of the HUD picture according to the brightness adjustment information in a time period before the vehicle reaches the target object.

[0051] In the embodiments of the present disclosure, after obtaining the brightness adjustment information of the HUD picture, the HUD display device can adjust the display brightness of the HUD picture according to the brightness adjustment information in a time period before the vehicle reaches the target object (such as a tunnel entrance or a tunnel exit), so that the display brightness of the HUD picture is adapted to the ambient brightness of the target object when the vehicle reaches the target object, avoiding the situation that the HUD picture is too bright or too dark, thereby ensuring the timeliness of the brightness adjustment of the HUD picture and reducing or avoiding the adjustment delay.

[0052] In the embodiments of the present disclosure, the real-time distance of the vehicle to the target object is obtained, and if the real-time distance meets the set condition, the brightness adjustment information of the HUD picture is determined based on the real-time distance or the real-time driving speed of the vehicle. The display brightness of the HUD picture is adjusted according to the brightness adjustment information in a time period before the vehicle reaches the target object. The display brightness of the HUD picture can be adjusted in advance before the vehicle reaches the target object according to the real-time distance of the vehicle to the target object or the real-time driving speed of the vehicle, so as to ensure the timeliness of the brightness adjustment of the HUD picture, reduce or avoid the delay of the brightness adjustment of the HUD picture, and make the user's eyes adapt to the brightness change of the HUD picture in advance, avoid the sudden change of the display brightness of the HUD picture, make the display brightness of the HUD picture reach the most comfortable brightness state of the human eye when the vehicle enters or exits the target object, and improve the user's use experience and driving safety.

[0053] Figure 2 is a flowchart of a HUD picture brightness adjustment method provided by the embodiments of the present disclosure, as shown in Figure 2 The HUD picture brightness adjustment method provided by the embodiments of the present disclosure can include steps 210-230.

[0054] Step 210, obtaining the real-time distance of the vehicle to the target object, the vehicle displays a configured HUD picture, and the target object is a position or area where the ambient brightness changes.

[0055] The content in the embodiments of the present disclosure can refer to the content of step 110 described above, which will not be repeated here.

[0056] In step 220, when the vehicle is driving into the target object, if the real-time distance is less than or equal to a first preset distance threshold, a target brightness value corresponding to the real-time distance is taken as the brightness adjustment information based on a preset first mapping relationship, in which the real-time distance is positively related to the brightness value of the HUD picture, or when the vehicle is driving out of the target object, if the real-time distance is less than or equal to the first preset distance threshold, the target brightness value corresponding to the real-time distance is taken as the brightness adjustment information based on a preset second mapping relationship, in which the real-time distance is negatively related to the brightness value of the HUD picture.

[0057] The first preset distance threshold in the embodiments of the present disclosure can be set as needed, which is not specifically limited here. For example, the first preset distance threshold can be 100 meters, 200 meters, or 500 meters, etc.

[0058] In the embodiments of the present disclosure, the HUD display device stores a preset first mapping relationship, which can be understood as a corresponding relationship between the real-time distance of the vehicle to the target object and the brightness value of the HUD picture when the vehicle is driving into the target object, and the real-time distance of the vehicle to the target object is positively related to the brightness value of the HUD picture, that is, the brightness value of the HUD picture decreases with the decrease of the real-time distance. When the vehicle is driving into the target object, for example, the target object is the entrance of a tunnel or an underground parking lot, if the real-time distance of the vehicle to the target object is less than or equal to the first preset distance threshold (such as 100 meters), the HUD display device can determine the target brightness value corresponding to the real-time distance based on the preset first mapping relationship, and take the target brightness value corresponding to the real-time distance as the brightness adjustment information. Figure 3a A schematic diagram of the relationship between the real-time distance of the vehicle to the target object and the brightness value of the HUD picture when the vehicle is driving into the target object provided by the embodiments of the present disclosure is shown in FIG. 1. Figure 3a As shown in FIG. 1, the first preset distance threshold is 100m, and the first mapping relationship is the corresponding relationship between the real-time distance of the vehicle to the target object and the brightness value of the HUD picture between 100m and 0m, that is, the real-time distance of the vehicle to the target object is positively related to the brightness value of the HUD picture. It should be noted that this relationship can be applicable to the case of driving from an area with high ambient brightness to an area with low ambient brightness.

[0059] In the embodiments of the present disclosure, the first mapping relationship can be preset, or can be generated in real time based on the brightness value in the target object and the brightness value of the current environment according to a preset conversion relationship.

[0060] In the embodiments of the present disclosure, the HUD display device stores a preset second mapping relationship. The second mapping relationship can be understood as a corresponding relationship between the real-time distance from the vehicle to the target object and the brightness value of the HUD picture when the vehicle drives out of the target object. The real-time distance from the vehicle to the target object in the second mapping relationship is negatively correlated with the brightness value of the HUD picture, that is, the brightness value of the HUD picture increases as the real-time distance decreases. When the vehicle drives out of the target object, for example, the target object is the exit of a tunnel or an underground parking lot, if the real-time distance from the vehicle to the target object is less than or equal to a first preset distance threshold (for example, 100 meters), the HUD display device can determine the target brightness value corresponding to the real-time distance based on the preset second mapping relationship, and take the target brightness value corresponding to the real-time distance as the brightness adjustment information. Figure 3b A schematic diagram of the relationship between the real-time distance from the vehicle to the target object and the brightness value of the HUD picture when the vehicle drives out of the target object is provided for the embodiments of the present disclosure, as shown in Figure 3b The first preset distance threshold is 100 m, and the second mapping relationship is the corresponding relationship between the real-time distance from the vehicle to the target object and the brightness value of the HUD picture between 100 m and 0 m, that is, the real-time distance from the vehicle to the target object is negatively correlated with the brightness value of the HUD picture. It should be noted that this relationship can be applied to the case of driving from an area with low environmental brightness to an area with high environmental brightness.

[0061] In the embodiments of the present disclosure, the second mapping relationship can be preset, or can be generated in real time based on the brightness value in the target object and the brightness value of the current environment according to a preset conversion relationship.

[0062] In step 230, the display brightness of the HUD picture is adjusted according to the brightness adjustment information within the time period before the vehicle reaches the target object.

[0063] In the embodiments of the present disclosure, the HUD display device can adjust the display brightness of the HUD picture according to the target brightness value corresponding to the real-time distance within the time period before the vehicle reaches the target object, and adjust the display brightness of the HUD picture to the target brightness value when the vehicle reaches the target object.

[0064] Therefore, when the vehicle drives into or out of the target object, the display brightness of the HUD picture can be adjusted in advance according to the real-time distance from the vehicle to the target object before the vehicle reaches the target object, the timeliness of the brightness adjustment of the HUD picture is ensured, the delay of the brightness adjustment of the HUD picture is reduced or avoided, the user's eyes can be adapted to the brightness change of the HUD picture in advance, the sudden change of the display brightness of the HUD picture is avoided, the display brightness of the HUD picture reaches the most comfortable brightness state of the human eye when the vehicle drives into or out of the target object, and the user experience and driving safety are improved.

[0065] Figure 4 is a flowchart of a HUD picture brightness adjustment method provided by an embodiment of the present disclosure, as shown in the figure, the HUD picture brightness adjustment method provided by the embodiment can include steps 410-440: Figure 4

[0066] Step 410, obtain a real-time distance from the vehicle to a target object, the vehicle has a configured HUD picture displayed thereon, and the target object is a position or area where the ambient brightness changes.

[0067] The content in the embodiment of the present disclosure can refer to the content of step 110 described above, which will not be repeated here.

[0068] Step 420, if the real-time distance is less than or equal to a second preset distance threshold, and the positioning signal strength is lower than a set strength, obtain a real-time driving speed of the vehicle.

[0069] In the embodiment of the present disclosure, since the positioning signal near the tunnel or underground parking lot road is weak, the real-time distance from the vehicle to the target object obtained is inaccurate, therefore, the HUD display device can monitor the real-time distance from the vehicle to the target object and the positioning signal strength of the vehicle, if the real-time distance is less than or equal to the second preset distance threshold, and the positioning signal strength is lower than the set strength, it indicates that the HUD display device can perform HUD picture brightness adjustment and the positioning signal strength does not meet the minimum requirement for accurate positioning, then the HUD display device can obtain the real-time driving speed of the vehicle. The second preset distance threshold can be set as needed, for example, it can be 200m, which is not limited specifically here. The set strength can be understood as the minimum positioning signal strength required for accurate positioning, and the set strength can be set as needed, which is not limited specifically here.

[0070] Step 430, based on the real-time driving speed, determine a target brightness change speed of the HUD picture in a time period before the vehicle reaches the target object, take the target brightness change speed as the brightness adjustment information, and the brightness change speed is positively correlated with the real-time driving speed.

[0071] In the embodiment of the present disclosure, the HUD display device can determine the real-time brightness change speed corresponding to the real-time driving speed at each time based on the preset correspondence between the driving speed and the brightness change speed, determine the real-time brightness change speed in the time period before the vehicle reaches the target object as the target brightness change speed, and take the target brightness change speed as the brightness adjustment information of the HUD picture. The brightness change speed is positively correlated with the real-time driving speed, and the greater the real-time driving speed, the greater the corresponding brightness change speed.

[0072] ​Step 440: If the vehicle enters the target object, the display brightness of the HUD screen is adjusted based on the target brightness change rate during the time period before the vehicle arrives at the target object. The display brightness of the HUD screen decreases as the distance between the vehicle and the target object decreases. Alternatively, if the vehicle leaves the target object, the display brightness of the HUD screen is adjusted based on the target brightness change rate during the time period before the vehicle arrives at the target object. The display brightness of the HUD screen increases as the distance between the vehicle and the target object decreases.

[0073] In this embodiment of the disclosure, if a vehicle enters a target object, such as the entrance to a target road, the HUD display device can adjust the display brightness of the HUD screen based on the target brightness change rate during the time period before the vehicle arrives at the target object. The display brightness of the HUD screen decreases as the distance between the vehicle and the target object decreases.

[0074] In this embodiment of the disclosure, if the vehicle drives away from the target object, for example, the target object is the exit of the target road, the HUD display device can adjust the display brightness of the HUD screen based on the target brightness change rate during the time period before the vehicle reaches the target object. The display brightness of the HUD screen increases as the distance between the vehicle and the target object decreases.

[0075] Therefore, the brightness of the HUD screen can be adjusted in advance based on the vehicle's real-time speed before the vehicle reaches the target object, ensuring timely adjustment of the HUD screen brightness. This reduces or avoids delays in HUD screen brightness adjustment, allowing the user's eyes to adapt to changes in HUD screen brightness in advance, avoiding sudden changes in HUD screen brightness, and ensuring that the HUD screen brightness reaches the most comfortable brightness state for the human eye when the vehicle enters or leaves the target object, thereby improving the user experience and driving safety.

[0076] Figure 5 This is a flowchart of a HUD screen brightness adjustment method provided in an embodiment of this disclosure, such as... Figure 5 As shown, the HUD screen brightness adjustment method provided in this embodiment may include steps 510-550:

[0077] Step 510: Obtain the first ambient brightness outside the target object and the second ambient brightness inside the target object at the current moment.

[0078] In the embodiments of the present disclosure, the HUD display device can obtain the first ambient brightness outside the target object at the current time and the second ambient brightness inside the target object. For example, after the first ambient brightness outside the target object is obtained by the light sensor of the other vehicle driving outside the target object, the first ambient brightness can be sent to the cloud server. After the second ambient brightness inside the target object is obtained by the light sensor of the other vehicle driving inside the target object, the second ambient brightness can be sent to the cloud server. The HUD display device of the vehicle can obtain the first ambient brightness outside the target object at the previous time and the second ambient brightness inside the target object from the cloud server.

[0079] Step 520, calculating the brightness difference between the first ambient brightness and the second ambient brightness.

[0080] In the embodiments of the present disclosure, the HUD display device can calculate the brightness difference between the first ambient brightness outside the target object at the current time and the second ambient brightness inside the target object.

[0081] Step 530, obtaining the real-time distance from the vehicle to the target object when the brightness difference is greater than the preset brightness difference threshold.

[0082] The preset brightness difference threshold in the embodiments of the present disclosure can be understood as the minimum brightness difference for triggering the HUD display device to adjust the brightness of the HUD picture. The preset brightness difference threshold can be set as needed, which is not limited here.

[0083] In the embodiments of the present disclosure, if the brightness difference is greater than the preset brightness difference threshold, it indicates that the brightness difference between the inside and outside of the target object is large, and the HUD display device needs to adjust the brightness of the HUD picture. Therefore, the HUD display device can obtain the real-time distance from the vehicle to the target object. If the brightness difference is less than or equal to the preset brightness difference threshold, it indicates that the brightness difference between the inside and outside of the target object is small, and the HUD display device does not need to adjust the brightness of the HUD picture.

[0084] Step 540, if the real-time distance meets the set condition, determining the brightness adjustment information of the HUD picture based on the real-time distance and / or the real-time driving speed of the vehicle.

[0085] Step 550, adjusting the display brightness of the HUD picture according to the brightness adjustment information in the time period before the vehicle reaches the target object.

[0086] Therefore, when the brightness difference between the internal and external environment of the target object is large, the display brightness of the HUD picture can be adjusted in advance before the vehicle reaches the target object according to the real-time distance of the vehicle to the target object or the real-time driving speed of the vehicle, the timeliness of the brightness adjustment of the HUD picture is ensured, the delay of the brightness adjustment of the HUD picture is reduced or avoided, the user's eyes can be adapted to the brightness change of the HUD picture in advance, the sudden change of the display brightness of the HUD picture is avoided, the display brightness of the HUD picture reaches the most comfortable brightness state of the human eye when the vehicle drives into or out of the target object, and the use experience and driving safety of the user are improved.

[0087] Figure 6 is a structural schematic diagram of a HUD picture brightness adjustment device provided by an embodiment of the present disclosure. The device can be understood as the HUD display device or part of the functional modules in the HUD display device. As shown in the figure, Figure 6 the HUD picture brightness adjustment device 600 can include:

[0088] The acquisition module 610 is configured to acquire a real-time distance of a vehicle to a target object, the vehicle displays a HUD picture, and the target object is a position or area where the environmental brightness changes;

[0089] The determination module 620 is configured to determine brightness adjustment information of the HUD picture based on the real-time distance or a real-time driving speed of the vehicle if the real-time distance meets a set condition.

[0090] The adjustment module 630 is configured to adjust the display brightness of the HUD picture according to the brightness adjustment information within a time period before the vehicle reaches the target object.

[0091] Optionally, the acquisition module 610 can include:

[0092] The first determination sub-module is configured to determine the real-time distance of the vehicle relative to the target object according to the detection data of the vehicle and the high-precision map data, and the target object includes a target road entrance or a target road exit, and the target road includes a tunnel or an underground parking lot road.

[0093] Optionally, the determination module 620 can include:

[0094] The second determination sub-module is configured to, when the vehicle drives into the target object, if the real-time distance is less than or equal to a first preset distance threshold, determine a target brightness value corresponding to the real-time distance as the brightness adjustment information based on a preset first mapping relationship, and the real-time distance in the first mapping relationship is positively correlated with the brightness value of the HUD picture.

[0095] Or,

[0096] The third determining sub-module is configured to, when the vehicle is driving out of the target object, if the real-time distance is less than or equal to the first preset distance threshold, based on a preset second mapping relationship, taking the target brightness value corresponding to the real-time distance as the brightness adjustment information, the real-time distance in the second mapping relationship being negatively related to the brightness value of the HUD picture.

[0097] Optionally, the determining module 620 can include:

[0098] The first obtaining sub-module is configured to, if the real-time distance is less than or equal to the second preset distance threshold and the positioning signal strength is lower than the set strength, obtaining the real-time driving speed of the vehicle.

[0099] The fourth determining sub-module is configured to, based on the real-time driving speed, determining the target brightness change speed of the HUD picture in the time period before the vehicle reaches the target object, taking the target brightness change speed as the brightness adjustment information, the brightness change speed being positively related to the real-time driving speed.

[0100] Optionally, the determining module 620 can include:

[0101] The first adjusting sub-module is configured to, if the vehicle is driving into the target object, in the time period before the vehicle reaches the target object, adjusting the display brightness of the HUD picture based on the target brightness change speed, the display brightness of the HUD picture decreasing with the decrease of the distance between the vehicle and the target object.

[0102] Alternatively,

[0103] The second adjusting sub-module is configured to, if the vehicle is driving out of the target object, in the time period before the vehicle reaches the target object, adjusting the display brightness of the HUD picture based on the target brightness change speed, the display brightness of the HUD picture increasing with the decrease of the distance between the vehicle and the target object.

[0104] Optionally, the obtaining module 610 can include:

[0105] The second obtaining sub-module is configured to obtaining a first ambient brightness in the target object and a second ambient brightness outside the target object at a current time;

[0106] The calculating sub-module is configured to calculating a brightness difference between the first ambient brightness and the second ambient brightness;

[0107] The third obtaining sub-module is configured to, when the brightness difference is greater than a preset brightness difference threshold, obtaining a real-time distance from the vehicle to the target object.

[0108] The HUD picture brightness adjustment device provided by the embodiments of the present disclosure can implement the method of any of the above embodiments, and has similar execution modes and beneficial effects, which will not be described here again.

[0109] The HUD display device provided in the embodiments of the present disclosure can be understood as any device that can have a HUD picture display function and data processing and computing capabilities.

[0110] The HUD display device in the embodiments of the present disclosure can be understood as any device that can have a HUD picture display function and data processing and computing capabilities.

[0111] Figure 7 is a structural schematic diagram of a HUD display device provided in the embodiments of the present disclosure, as Figure 7 shown, the HUD display device 700 can include a processor 710 and a memory 720, wherein the memory 720 stores a computer program 721, and when the computer program 721 is executed by the processor 710, the method provided in any of the above embodiments can be implemented, and the execution manner and beneficial effects are similar, which will not be repeated here.

[0112] Of course, in order to simplify, Figure 7 only some of the components related to the present disclosure in the HUD display device 700 are shown, and components such as buses, input / output interfaces, input devices, and output devices are omitted. In addition, according to specific application conditions, the HUD display device 700 can also include any other appropriate components.

[0113] The embodiments of the present disclosure provide a computer readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the method provided in any of the above embodiments can be implemented, and the execution manner and beneficial effects are similar, which will not be repeated here.

[0114] The above computer readable storage medium can adopt any combination of one or more readable media. The readable medium can be a readable signal medium or a readable storage medium. The readable storage medium may, for example, include but is not limited to an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or component, or any combination of the above. More specific examples (non-exhaustive list) of readable storage medium include: electrical connection with one or more conductive wires, portable disk, hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any appropriate combination of the above.

[0115] The computer program above can be written in any combination of one or more programming languages implemented for performing the operations of the embodiments of the present disclosure, including an object oriented programming language, such as Java, C++, and conventional procedural programming languages, such as the "C" programming language, or the similar programming languages. The program code can be executed entirely on the user computer device, partially on the user device, as an independent software package, partially on the user computer device and partially on a remote computer device, or entirely on a remote computer device or server.

[0116] The embodiments of the present disclosure also provide a vehicle, which can include the HUD picture brightness adjustment device, the HUD display device or the computer readable storage medium described above, and can implement the method of any of the above embodiments, and the implementation manner and beneficial effects are similar, which will not be described here.

[0117] The above description is merely preferred embodiments of the present disclosure and a description of the principles of the technology applied. Those skilled in the art should understand that the disclosed range of the present disclosure is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the above disclosed concept. For example, the technical solutions formed by replacing the above features with the technical features disclosed in the present disclosure (but not limited to) having similar functions.

[0118] In addition, although each operation is described in a particular order, this should not be understood as requiring the operations to be performed in the specific order shown or in a sequential order. In certain circumstances, multitasking and parallel processing can be advantageous. Similarly, although several implementation details are included in the above discussion, these should not be interpreted as limiting the scope of the present disclosure. Certain features described in the context of separate embodiments can also be combined in a single embodiment. Conversely, various features described in the context of a single embodiment can also be separated and implemented in multiple embodiments.

[0119] The above is merely a specific implementation of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for adjusting the brightness of a HUD picture, characterized in that The method comprises: acquiring a real-time distance from a vehicle to a target object, the vehicle displaying a HUD picture, and the target object being a location or area where there is a change in ambient brightness; if the real-time distance meets a set condition, determining brightness adjustment information of the HUD picture based on the real-time distance or a real-time driving speed of the vehicle; adjusting the display brightness of the HUD picture according to the brightness adjustment information within a time period before the vehicle reaches the target object; wherein, if the real-time distance meets the set condition, determining the brightness adjustment information of the HUD picture based on the real-time distance comprises: when the vehicle enters the target object, if the real-time distance is less than or equal to a first preset distance threshold, determining a target brightness value corresponding to the real-time distance as the brightness adjustment information based on a preset first mapping relationship, the real-time distance and the brightness value of the HUD picture being positively correlated in the first mapping relationship; or, when the vehicle exits the target object, if the real-time distance is less than or equal to a first preset distance threshold, determining a target brightness value corresponding to the real-time distance as the brightness adjustment information based on a preset second mapping relationship, the real-time distance and the brightness value of the HUD picture being negatively correlated in the second mapping relationship.

2. The method of claim 1, wherein, The method further comprises: determining the real-time distance of the vehicle relative to the target object based on detection data of the vehicle and high-precision map data, the target object comprising a target road entrance or a target road exit, and the target road comprising a tunnel or an underground parking lot road.

3. The method of claim 1, wherein, The method further comprises: if the real-time distance is less than or equal to a second preset distance threshold and the positioning signal strength is lower than a set strength, acquiring the real-time driving speed of the vehicle; determining a target brightness change speed of the HUD picture within the time period before the vehicle reaches the target object based on the real-time driving speed, and determining the target brightness change speed as the brightness adjustment information, the brightness change speed being positively correlated with the real-time driving speed.

4. The method of claim 3, wherein, The method further comprises: if the vehicle enters the target object, adjusting the display brightness of the HUD picture based on the target brightness change speed within the time period before the vehicle reaches the target object, the display brightness of the HUD picture decreasing as the distance between the vehicle and the target object decreases; or, if the vehicle exits the target object, adjusting the display brightness of the HUD picture based on the target brightness change speed within the time period before the vehicle reaches the target object, the display brightness of the HUD picture increasing as the distance between the vehicle and the target object decreases.

5. The method of claim 1, wherein, The method further comprises: Acquire a first ambient brightness in the target object and a second ambient brightness outside the target object at the current time; Calculate the brightness difference between the first ambient brightness and the second ambient brightness; When the brightness difference is greater than a preset brightness difference threshold, acquire the real-time distance from the vehicle to the target object.

6. A HUD picture brightness adjusting apparatus characterized by comprising: Comprise: An acquisition module is configured to acquire the real-time distance from the vehicle to the target object, the vehicle displays a HUD picture, and the target object is a location or area with ambient brightness changes; A determination module is configured to determine the brightness adjustment information of the HUD picture based on the real-time distance or the real-time driving speed of the vehicle if the real-time distance meets the set conditions; An adjustment module is configured to adjust the display brightness of the HUD picture according to the brightness adjustment information within a time period before the vehicle reaches the target object; The determination module is specifically configured to, when the vehicle enters the target object, if the real-time distance is less than or equal to a first preset distance threshold, based on a preset first mapping relationship, take the target brightness value corresponding to the real-time distance as the brightness adjustment information, and the real-time distance and the brightness value of the HUD picture in the first mapping relationship are positively correlated. Or, when the vehicle exits the target object, if the real-time distance is less than or equal to a first preset distance threshold, based on a preset second mapping relationship, take the target brightness value corresponding to the real-time distance as the brightness adjustment information, and the real-time distance and the brightness value of the HUD picture in the second mapping relationship are negatively correlated.

7. A HUD display device, characterized by, Comprise: A memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the HUD picture brightness adjustment method of any one of claims 1-5 is realized.

8. A computer-readable storage medium, characterized in that, The storage medium stores a computer program, and when the computer program is executed by the processor, the HUD picture brightness adjustment method of any one of claims 1-5 is realized.

9. A vehicle characterized by comprising: The vehicle comprises the HUD picture brightness adjustment device of claim 6 or the HUD display device of claim 7 or the computer readable storage medium of claim 8.

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