Brightness control method and device for head-up display equipment and electronic equipment

Abstract

The invention relates to a head-up display equipment brightness control method and device and electronic equipment, and particularly relates to the technical field of vehicle-mounted electronics. The method comprises the following steps: acquiring external environment information, and determining a plurality of light intensity intervals corresponding to the external environment information; matching the plurality of light intensity intervals, and setting first brightness according to a matching result and a preset rule; obtaining user preference information, and adjusting the first brightness according to the user preference information to obtain target brightness; and controlling a light source of the head-up display device to emit light based on the target brightness. The light source of the head-up display device adapts to the external environment and user preferences.

Description

Technical Field

[0001] The present disclosure relates to the field of vehicle-mounted electronic technology, and in particular to a head-up display device brightness control method, device and electronic device. Background Art

[0002] The Heads Up Display (HUD) uses the principle of optical reflection to project and reflect important driving information parallel to the driver's eyes, allowing the driver to see important driving information such as speed and navigation without lowering or turning his head. The display effect of driving information is greatly affected by the surrounding ambient light. To ensure the clear display of driving information, the HUD needs to increase the brightness of its light source in strong light environments during the day, and reduce the brightness of its light source at night. The display brightness during the day and at night is set separately according to the different brightness of the day and night environments. However, the human eye is not the same in terms of sensitivity to light intensity. The relevant technology only distinguishes between day and night, and it is difficult to adapt to the complex changes in ambient brightness and to adapt to the diverse needs of users, affecting the user experience. Summary of the invention

[0003] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a HUD brightness control method, device, electronic device, storage medium and vehicle, which can adapt to driving scenarios with various ambient brightness changes and support user personalized preference settings.

[0004] In order to achieve the above objectives, the technical solutions provided by the embodiments of the present disclosure are as follows:

[0005] In a first aspect, the present disclosure provides a method for controlling brightness of a head-up display device, comprising:

[0006] Acquire external environment information, and determine a plurality of light intensity intervals corresponding to the external environment information;

[0007] Matching the multiple light intensity intervals, and setting a first brightness according to the matching result and a preset rule;

[0008] Acquire user preference information, and adjust the first brightness according to the user preference information to obtain a target brightness;

[0009] The head-up display device is controlled to adjust to the target brightness.

[0010] As an optional implementation of the embodiment of the present disclosure, the external environment information includes at least one of the first ambient light intensity, time information, and weather information of the current location collected by the optical sensor;

[0011] The acquiring of external environment information and determining a plurality of light intensity intervals corresponding to the external environment information includes:

[0012] determining a first light intensity interval corresponding to the first ambient light intensity;

[0013] A second light intensity interval corresponding to the time information and the weather information of the current location is determined.

[0014] As an optional implementation of the embodiment of the present disclosure, after matching the multiple light intensity intervals and setting the first brightness according to the matching results and the preset rule, the method further includes:

[0015] Displaying a first brightness level parameter corresponding to the first brightness in a vehicle-machine interaction interface;

[0016] The acquiring user preference information and adjusting the first brightness according to the user preference information to obtain a target brightness includes:

[0017] In response to a brightness adjustment input by a user in the vehicle-computer interaction interface, obtaining a second brightness level parameter corresponding to the brightness adjustment input;

[0018] Calculate the user preference information according to the first brightness level parameter and the second brightness level parameter;

[0019] The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

[0020] As an optional implementation of the embodiment of the present disclosure, after the user preference information is calculated according to the first brightness level parameter and the second brightness level parameter, the method further includes:

[0021] Acquire the second ambient light intensity collected by the optical sensor;

[0022] When the second ambient light intensity is within the light intensity range of the target state, storing the user preference information in correspondence with the target state;

[0023] The target state is a daytime state or a nighttime state.

[0024] As an optional implementation of the embodiment of the present disclosure, the acquiring user preference information and adjusting the first brightness according to the user preference information to obtain the target brightness includes:

[0025] If the first ambient light intensity is within the light intensity range of the target state, obtaining pre-stored user preference information corresponding to the target state, the target state being a daytime state or a nighttime state, and the user preference information corresponding to the target state indicating a brightness level parameter;

[0026] The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

[0027] As an optional implementation of the embodiment of the present disclosure, matching the multiple light intensity intervals and setting the first brightness according to the matching result and a preset rule includes:

[0028] If the first light intensity interval matches the second light intensity interval, determining a first brightness according to the first ambient light intensity and a first brightness curve; wherein the first brightness curve is a brightness curve corresponding to the first light intensity interval, and the brightness curve is a curve of a relationship between a preset ambient light intensity and a brightness of a light source of a head-up display device;

[0029] If the first light intensity interval does not match the second light intensity interval, an adjustment coefficient is determined according to the first light intensity interval and the second light intensity interval, and the brightness corresponding to the first ambient light intensity on the first brightness curve is adjusted according to the adjustment coefficient to obtain a first brightness.

[0030] As an optional implementation of the embodiment of the present disclosure, controlling the head-up display device to adjust to a target brightness includes:

[0031] The head-up display device is controlled to adjust to a target brightness within a preset time period and at a preset frequency.

[0032] In a second aspect, the present disclosure provides a head-up display device brightness control device, the device comprising:

[0033] An acquisition module, used to acquire external environment information and determine a plurality of light intensity intervals corresponding to the external environment information;

[0034] A matching module, used for matching the multiple light intensity intervals and setting the first brightness according to the matching result and a preset rule;

[0035] an adjustment module, configured to obtain user preference information, and adjust the first brightness according to the user preference information to obtain a target brightness;

[0036] The control module is used to control the head-up display device to adjust to a target brightness.

[0037] As an optional implementation of the embodiment of the present disclosure, the external environment information includes at least one of the first ambient light intensity, time information, and weather information of the current location collected by the optical sensor;

[0038] An acquisition module is specifically used to: determine a first light intensity interval corresponding to the first ambient light intensity;

[0039] A second light intensity interval corresponding to the time information and the weather information of the current location is determined.

[0040] As an optional implementation of the embodiment of the present disclosure, the matching module is further used to display the first brightness level parameter corresponding to the first brightness in the vehicle-machine interaction interface;

[0041] The acquiring user preference information and adjusting the first brightness according to the user preference information to obtain a target brightness includes:

[0042] In response to a brightness adjustment input by a user in the vehicle-computer interaction interface, obtaining a second brightness level parameter corresponding to the brightness adjustment input;

[0043] Calculate the user preference information according to the first brightness level parameter and the second brightness level parameter;

[0044] The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

[0045] As an optional implementation of the embodiment of the present disclosure, the matching module, after calculating the user preference information according to the first brightness level parameter and the second brightness level parameter, is further used to: obtain the second ambient light intensity collected by the optical sensor;

[0046] When the second ambient light intensity is within the light intensity range of the target state, storing the user preference information in correspondence with the target state;

[0047] The target state is a daytime state or a nighttime state.

[0048] As an optional implementation of the embodiment of the present disclosure, the adjustment module is specifically used to: if the first ambient light intensity is within the light intensity range of the target state, obtain the pre-stored user preference information corresponding to the target state, the target state is a daytime state or a nighttime state, and the user preference information corresponding to the target state indicates a brightness level parameter;

[0049] The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

[0050] As an optional implementation of the embodiment of the present disclosure, the matching module is specifically used to: if the first light intensity interval matches the second light intensity interval, determine the first brightness according to the first ambient light intensity and the first brightness curve; wherein the first brightness curve is a brightness curve corresponding to the first light intensity interval, and the brightness curve is a curve of the relationship between the preset ambient light intensity and the brightness of the light source of the head-up display device;

[0051] If the first light intensity interval does not match the second light intensity interval, an adjustment coefficient is determined according to the first light intensity interval and the second light intensity interval, and the brightness corresponding to the first ambient light intensity on the first brightness curve is adjusted according to the adjustment coefficient to obtain a first brightness.

[0052] As an optional implementation of the embodiment of the present disclosure, the control module is specifically used to control the light source of the head-up display device to transform to a target brightness within a preset time period.

[0053] In a third aspect, the present disclosure provides an electronic device, comprising: a processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the method for controlling the brightness of a head-up display device as described in the first aspect or any one of its optional embodiments is implemented.

[0054] In a fourth aspect, the present disclosure provides a computer-readable storage medium, comprising: a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the head-up display device brightness control method as described in the first aspect or any optional embodiment thereof is implemented.

[0055] In a fifth aspect, the present disclosure provides a vehicle, comprising: a head-up display device brightness control apparatus as described in the second aspect or any optional embodiment thereof, or an electronic device as described in the third aspect.

[0056] In a sixth aspect, a computer program product is provided, comprising: when the computer program product is run on a computer, the computer implements the head-up display device brightness control method as described in the first aspect or any optional embodiment thereof.

[0057] Compared with the prior art, the technical solution provided by the embodiments of the present disclosure has the following advantages:

[0058] The disclosed embodiments provide a head-up display device brightness control method, device and electronic device. The method first obtains external environment information, determines multiple light intensity intervals corresponding to the external environment information, then matches the multiple light intensity intervals, and then sets a first brightness according to the matching results and preset rules, further obtains user preference information, and adjusts the first brightness according to the user preference information to obtain a target brightness, so as to control the head-up display device light source to emit light based on the target brightness. In order to adapt to changes in the external environment, the corresponding multiple light intensity intervals are first determined, and after matching, the first brightness is first set according to the preset rules, and then the first brightness is adjusted according to the user preference information to obtain the target brightness of the light source to control the light emission, so that the head-up display device light source can adapt to the external environment and emit light according to different user preferences, thereby improving scene adaptability and user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0060] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0061] Figure 1 A schematic diagram of the architecture of an electronic device provided by an embodiment of the present disclosure;

[0062] Figure 2 A flow chart of a HUD brightness control method provided in an embodiment of the present disclosure;

[0063] Figure 3 A schematic diagram of a brightness curve provided in an embodiment of the present disclosure;

[0064] Figure 4 A schematic diagram of the structure of a head-up display device brightness control device is provided for an embodiment of the present disclosure;

[0065] Figure 5 A schematic structural diagram of an electronic device is provided in accordance with an embodiment of the present disclosure. DETAILED DESCRIPTION

[0066] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0067] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0068] In order to solve the problems existing in the related art, the embodiments of the present disclosure provide a HUD brightness control method, device, electronic device, storage medium and vehicle, wherein the method first obtains external environment information, determines multiple light intensity intervals corresponding to the external environment information, then matches the multiple light intensity intervals, and then sets the first brightness according to the matching results and preset rules, further obtains user preference information, and adjusts the first brightness according to the user preference information to obtain the target brightness, so as to control the light source of the head-up display device to emit light based on the target brightness. In order to adapt to the changes in the external environment, the corresponding multiple light intensity intervals are first determined, and after matching, the first brightness is first set according to the preset rules, and then the first brightness is adjusted according to the user preference information to obtain the target brightness of the light source to control the light emission, so that the light source of the head-up display device can adapt to the external environment and emit light according to different user preferences, thereby improving the scene adaptability and user experience.

[0069] The HUD brightness control method provided in the embodiments of the present disclosure may be implemented by a HUD brightness control device or an electronic device, such as Figure 1 As shown, Figure 1 The electronic device provided in the embodiment of the present disclosure may include: an optical sensor 101, a head-up display 102, and a central control entertainment screen 103, wherein the optical sensor 101 is used to collect the intensity of external ambient light; the central control entertainment screen 103 is used to provide an operation entry for the user and feed back the user operation to the head-up display 102; the head-up display 102 is used to perform calculations based on external input to control the light source to emit light.

[0070] like Figure 2 As shown, Figure 2 A flow chart of a HUD brightness control method provided in an embodiment of the present disclosure, the method comprising the following steps S201 to S204:

[0071] S201: Acquire external environment information, and determine a plurality of light intensity intervals corresponding to the external environment information.

[0072] The external environment information includes but is not limited to: the first environment light intensity collected by the optical sensor, time information and weather information of the current location. The first environment light intensity is the first environment light intensity collected by the optical sensor at the current moment.

[0073] The light intensity intervals provided in the embodiments of the present disclosure can be divided into: a twilight interval, a daytime weak light interval, a daytime strong light interval, a dusk interval, a nighttime weak light interval and a nighttime strong light interval, and the ambient light intensity involved in each light intensity interval is not the same.

[0074] In some embodiments, the optical sensor transmits the collected first ambient light intensity to a processing component of the head-up display device, so that the processing component determines a first light intensity interval corresponding to the first ambient light intensity. The processing component determines the corresponding first light intensity interval from the above light intensity intervals according to the first ambient light intensity.

[0075] In some embodiments, before determining the first light intensity interval corresponding to the first ambient light intensity collected by the optical sensor, the first ambient light intensity collected by the optical sensor and the historical ambient light intensity are first obtained, and the historical ambient light intensity is at least one ambient light intensity collected before the first ambient light intensity; then the light intensity difference between the first ambient light intensity and the historical ambient light intensity is calculated; the time interval between the historical ambient light intensity and the first ambient light intensity is determined by the working time of the optical sensor. It can be understood that the optical sensor is obtained to collect at least two ambient light intensities that are adjacent in time sequence: the historical ambient light intensity and the first ambient light intensity, and the historical ambient light intensity is relatively early in time sequence, and then the light intensity difference between the first ambient light intensity and the historical ambient light intensity is calculated to reflect the change in ambient light intensity during this time interval.

[0076] Furthermore, the disclosed embodiment provides an implementation method, which compares the light intensity difference with a preset difference, which is a preset minimum threshold for determining a change in light intensity. If the light intensity difference is less than the preset difference, it indicates that the change from the historical ambient light intensity to the first ambient light intensity is small and can be ignored. The setting and judgment of the preset difference allows the sensitivity of the HUD light source to be within an appropriate range, avoiding frequent changes in the brightness of the HUD light source when the ambient light intensity changes slightly.

[0077] If the light intensity difference is greater than or equal to the preset difference, it means that the degree of change from the historical ambient light intensity to the first ambient light intensity is greater than the setting and needs to be paid attention to. Then, the first light intensity interval corresponding to the first ambient light intensity is determined, so that when the ambient light intensity changes significantly, the HUD light source emission control is triggered to realize automatic adjustment of the HUD light source emission to adapt to the change of ambient light intensity.

[0078] The disclosed embodiment also provides another implementation method, after calculating the light intensity difference between the first ambient light intensity and the historical ambient light intensity, it is determined whether the first ambient light intensity falls into the first light intensity interval, and whether the ratio between the light intensity difference and the first light intensity interval is greater than or equal to a preset ratio, wherein the preset ratio is a preset minimum ratio threshold indicating a change in ambient light intensity, and exemplarily, the preset ratio corresponding to the twilight interval is 10%, the preset ratio corresponding to the daytime weak light interval is 15%, and the preset ratio corresponding to the daytime strong light interval is 20%. If the ratio between the light intensity difference and the first light intensity interval is less than the preset ratio, it indicates that the degree of change in ambient light in the process from the historical ambient light intensity to the first ambient light intensity is small and can be ignored.

[0079] It can be understood that after calculating the light intensity difference between the first ambient light intensity and the historical ambient light intensity, it is determined whether the value corresponding to the first ambient light intensity is within the value range corresponding to the first light intensity, and whether the proportion of the light intensity difference in the value range corresponding to the first light intensity is greater than or equal to the preset proportion. If the first ambient light intensity falls into the first light intensity interval, and the ratio between the light intensity difference and the first light intensity interval is greater than or equal to the preset ratio, it means that the ambient light intensity has changed significantly, which can trigger the HUD light source to change the luminous brightness, then the first light intensity interval corresponding to the first ambient light intensity is determined, and the control process of starting the HUD light source to emit light is started.

[0080] In the above embodiment, the actual light intensity of the external environment is measured by an optical sensor to obtain a first light intensity range corresponding to the first ambient light intensity. In addition, when the change in ambient light intensity reaches a certain level, the HUD is triggered to change the brightness of the light source; at the same time, the adverse effects on safe driving caused by frequent adjustment of the HUD light source brightness when the ambient light intensity changes slightly are avoided.

[0081] In some embodiments, the corresponding second light intensity interval is determined based on the time information included in the external environment information and the weather information of the current location. In this process, the HUD obtains the time information sent by the central control entertainment screen and the weather information of the current location, wherein the weather information can be specifically divided into: sunny, cloudy, rainy, snowy, etc.; and then predicts the corresponding second light intensity interval through an algorithm, wherein the algorithm can be an artificial intelligence algorithm, a neural network, a deep learning model, etc., and the present disclosure does not limit this. It can be understood that based on the time information and the weather information of the current location, it is inferred which of the following light intensity intervals the current ambient light intensity is in: dusk interval, daytime weak light interval, daytime strong light interval, evening interval, night weak light interval, night strong light interval.

[0082] The above-mentioned embodiment predicts the light intensity of the HUD surrounding environment by time and weather, thereby expanding the HUD's recognition of ambient light intensity from day and night to specific time and weather. For example, the present disclosure controls the HUD light source to emit different brightness for sunny days and rainy days to better adapt to complex driving environments.

[0083] S202: Match multiple light intensity intervals, and set a first brightness according to the matching result and a preset rule.

[0084] In some embodiments, a first light intensity interval corresponding to the first ambient light intensity is matched with a second light intensity interval corresponding to the time information and the current position to determine whether the first light intensity interval matches the second light intensity interval.

[0085] In other embodiments, a historical light intensity interval corresponding to the historical ambient light intensity is determined, and the historical light intensity interval, the first light intensity interval, and the second light intensity interval are matched to determine whether the light intensity intervals match.

[0086] The following takes matching the first light intensity interval and the second light intensity interval as an example, and different matching results correspond to different preset rules:

[0087] The first light intensity interval and the second light intensity interval are matched. If the matching result indicates a match, it means that the ambient light change actually measured by the light sensor is consistent or approximately consistent with the ambient light change predicted by the algorithm. The preset rule corresponding to the match is to use the first ambient light intensity as a reference standard and determine the first brightness corresponding to the first ambient light intensity from the first brightness curve, wherein the first brightness curve is a brightness curve corresponding to the first light intensity interval, and the brightness curve is a curve of the relationship between the preset ambient light intensity and the brightness of the HUD light source. For example, Figure 3 As shown, Figure 3 This is a schematic diagram of a brightness curve provided by an embodiment of the present disclosure, in which the preset ambient light brightness is divided into multiple light intensity intervals, and each light intensity interval has a corresponding brightness curve. It should be emphasized that Figure 3 The brightness curve is merely an example and is not limited in the present disclosure.

[0088] It should be emphasized that the number of second light intensity intervals predicted by the algorithm in the above embodiment may be multiple, and the probability of each second light intensity interval is different. The first light intensity interval matches the second light intensity interval, which can be the same as the second light intensity interval with the highest probability.

[0089] Exemplarily, assuming that the first light intensity interval is a daytime strong light interval, the probability that the predicted second light intensity interval is a daytime strong light interval is 98%, and the probability that it is a daytime weak light interval is 2%, indicating that the first light intensity interval and the second light intensity interval match, then the first brightness corresponding to the first ambient light intensity is determined from the first brightness curve.

[0090] If the first light intensity interval does not match the second light intensity interval, that is, the matching result indicates a mismatch, indicating that there may be a deviation between the ambient light change actually measured by the light sensor and the ambient light change predicted by the algorithm, then the preset rule corresponding to the mismatch is to determine the adjustment coefficient based on the difference between the first light intensity interval and the second light intensity interval, and then determine the brightness corresponding to the first ambient light intensity from the first brightness curve, and then use the adjustment coefficient to adjust the brightness to obtain the first brightness, so as to transform the light intensity perceived by the light sensor and combine it with the specific time and weather to determine a more accurate first brightness.

[0091] Optionally, the first light intensity interval Q1 and the second light intensity interval Q2 are different, and an adjustment coefficient P is determined according to a formula P=Q1 / Q2, so that the brightness corresponding to the first ambient light intensity is adjusted according to the adjustment coefficient P to obtain the first brightness.

[0092] Exemplarily, assuming that the first light intensity interval is a daytime strong light interval, the probability that the second light intensity interval is a daytime weak light interval is 98%, and the probability that it is a daytime strong light interval is 2%, it indicates that the first light intensity interval does not match the second light intensity interval, and thus the adjustment coefficient is calculated based on the first light intensity interval (daytime strong light interval) and the second light intensity interval (daytime weak light interval) to obtain the first brightness by correcting the brightness corresponding to the first ambient light intensity through the adjustment coefficient.

[0093] In some embodiments, a first brightness level parameter corresponding to the first brightness is displayed in the car-machine interaction interface displayed on the central control entertainment screen, wherein different brightness level parameters correspond to different brightness intervals, for example, the first brightness is in brightness interval A, brightness interval A corresponds to the first brightness level parameter L1, and the first brightness level parameter L1 will be displayed in the car-machine interaction interface; the car-machine interaction interface supports obtaining user input, and when the car-machine interaction interface obtains the user's brightness adjustment input, in response to the user's brightness adjustment input, obtains the second brightness level parameter corresponding to the brightness adjustment input; further, the user preference information is calculated based on the first brightness level parameter and the second brightness level parameter, and it can be understood that the user preference information indicates the brightness level parameter; the calculated user preference information is stored to memorize the brightness preferred by the user in the daytime / nighttime state, and the HUD light source is subsequently controlled according to the corrected user preference to enhance the user experience.

[0094] In some embodiments, in the process of storing user preference information, a second ambient light intensity collected by the optical sensor is obtained. If the second ambient light intensity collected by the optical sensor is within the light intensity range corresponding to the night state, the user preference information is stored corresponding to the night state; if the third ambient light intensity collected by the optical sensor is within the light intensity range corresponding to the day state, the user preference information is stored corresponding to the day state to update the user preference information.

[0095] S203: Obtain user preference information, and adjust the first brightness according to the user preference information to obtain a target brightness.

[0096] Among them, user preference information is the brightness adjustment parameters pre-set by the user according to different states. Different states can refer to daytime state and nighttime state, or multiple states corresponding to different light intensity intervals. The present disclosure does not specifically limit the degree and number of state divisions. Different states correspond to different user preference information. The process of adjusting the first brightness will be explained using daytime state and nighttime state as examples later.

[0097] In some embodiments, before obtaining user preference information, it is determined whether the first ambient light intensity is within the light intensity range of the target state, the target state including the night state or the day state. In the process of determining the light intensity range of the target state, it is first determined whether the first ambient light intensity is within the first light intensity range of the day state or the second light intensity range of the night state. This step is a preliminary and rough judgment of the target state of the first ambient light intensity.

[0098] Among them, the first light intensity range of the daytime state is a pre-set original light intensity range of the daytime state, which includes the minimum light intensity of the daytime state to the maximum light intensity of the daytime state. The first light intensity range may include: all light intensity intervals of the daytime state, for example, the twilight interval of the daytime state, the daytime weak light interval and the daytime strong light interval.

[0099] The second light intensity range of the night state is a pre-set original light intensity range of the night state, which includes the minimum light intensity of the night state to the maximum light intensity of the night state. The second light intensity range includes: all light intensity intervals of the night state, exemplarily, the evening interval of the night state, the night low light interval and the night strong light interval.

[0100] Optionally, it is determined whether the first ambient light intensity is in the twilight interval, the daytime weak light interval, or the daytime strong light interval of the daytime state; or it is determined whether the first ambient light intensity is in the evening interval, the nighttime weak light interval, or the nighttime strong light interval of the nighttime state. It can be understood that when the first ambient light intensity is in any one of the light intensity intervals of the twilight interval, the daytime weak light interval, or the daytime strong light interval, it indicates that the target state corresponding to the first ambient light intensity is the daytime state; when the first ambient light intensity is in any one of the light intensity intervals of the evening interval, the nighttime weak light interval, or the nighttime strong light interval, it indicates that the target state corresponding to the first ambient light intensity is the nighttime state.

[0101] It should be noted that the embodiment of the present disclosure is provided with a hysteresis interval for the light intensity range of the target state to avoid erroneous judgment that the ambient light has undergone major changes such as day-night switching. If it was previously detected that it was daytime and it is currently detected that it is nighttime, the light intensity range of the daytime state is adjusted first, and the light intensity range of the daytime state is increased according to the hysteresis interval, and the threshold for triggering the day-night switching is reduced to maintain the brightness of the HUD light source for a certain period of time until the day-night switching is detected again based on the adjusted light intensity range; if it was previously detected that it was nighttime and it is currently detected that it is daytime, the light intensity range of the nighttime state is adjusted first, and the light intensity range of the nighttime state is increased according to the hysteresis interval, and the threshold for triggering the day-night switching is increased until the day-night switching is detected again based on the adjusted light brightness.

[0102] In some embodiments, while determining whether the first ambient light intensity is within the first light intensity range of the daytime state, it is determined whether the historical ambient light intensity collected before the first ambient light intensity is within the second light intensity range of the nighttime state; or, while determining whether the first ambient light intensity is within the second light intensity range of the nighttime state, it is determined whether the historical ambient light intensity is within the first light intensity range of the daytime state. This determines whether to correct the light intensity range of the daytime state or whether to correct the light intensity range of the nighttime state.

[0103] The following will introduce two situations respectively from the preliminary judgment that the first ambient light intensity is in the first light intensity range of the daytime state and the first ambient light intensity is in the second light intensity range of the nighttime state:

[0104] (1) The first ambient light intensity is within the first light intensity range of the daytime state

[0105] When it is preliminarily determined that the first ambient light intensity is within the first light intensity range of the daytime state, it is determined whether the historical ambient light intensity is within the second light intensity range of the nighttime state.

[0106] If the historical ambient light intensity is in the second light intensity range of the night state, it means that the change from the historical ambient light intensity to the first ambient light intensity may be the switch of the HUD surrounding environment from the night state to the day state, then the light intensity change state of the first ambient light intensity compared to the historical ambient light intensity is determined. If the light intensity change state is the light intensity increase state, it means that the first ambient light intensity is greater than the historical ambient light intensity, and the light intensity is increasing. To avoid erroneous recognition of the switch from night to day, the embodiment of the present disclosure corrects the light intensity range of the night state. Optionally, the target light intensity range of the night state is obtained. The target light intensity range of the night state is obtained based on the second light intensity range and the hysteresis interval. The maximum light intensity of the target light intensity range of the night state is greater than the maximum light intensity of the second light intensity range of the night state. Correspondingly, the light intensity range of the day state is also adjusted, and the minimum light intensity of the target light intensity range of the day state is greater than the first light intensity range of the day state.

[0107] It is understandable that the light intensity range of the night state is increased, and the light intensity range of the day state is correspondingly reduced, and the first ambient light intensity is judged again to determine whether the first ambient light intensity is within the adjusted target light intensity range of the day state. If the first ambient light intensity is not within the target light intensity range of the day state, the first ambient light intensity will not be determined as the day state, thereby avoiding the mistaken determination of the first ambient light intensity in the night state as the day state, and avoiding the misjudgment of the day-night switch.

[0108] In some embodiments, when the first ambient light intensity is within the target light intensity range of the daytime state, it can be determined that the ambient light intensity around the HUD is large, and then the user preference information corresponding to the daytime state is obtained, and the first brightness corresponding to the first ambient light intensity determined from the first brightness curve is adjusted according to the brightness level parameters indicated by the user preference information corresponding to the daytime state to obtain the target brightness, so that the HUD controls the light source to emit light in accordance with the user preference.

[0109] In the above embodiment, when the target state is preliminarily determined to be a daytime state based on the first ambient light intensity, whether the first ambient light intensity is in a daytime state is accurately determined again based on the historical ambient light intensity collected previously, thereby setting the brightness of the HUD light source based on the user preference information corresponding to the daytime state to meet the user's personalized needs.

[0110] (2) The first ambient light intensity is in the second light intensity range of the night state

[0111] When it is preliminarily determined that the first ambient light intensity is within the second light intensity range of the night state, it is determined whether the historical ambient light intensity is within the first light intensity range of the day state.

[0112] If the historical ambient light intensity is in the first light intensity range of the daytime state, it means that the change from the historical ambient light intensity to the first ambient light intensity may be the switching of the HUD surrounding environment from the daytime state to the nighttime state, then the light intensity change state of the first ambient light intensity compared to the historical ambient light intensity is determined; if the light intensity change state is a light intensity reduction state, it means that the first ambient light intensity is less than the historical ambient light intensity, and the light intensity is decreasing. To avoid erroneous identification as a day-night switch, the disclosed embodiment corrects the light intensity range of the daytime state. Optionally, the light intensity range of the daytime state is obtained. The light intensity range of the daytime state is determined based on the first light intensity range and the hysteresis interval. The hysteresis interval is a pre-set light intensity range for fault tolerance. The minimum light intensity of the target light intensity range of the daytime state is less than the minimum light intensity of the first light intensity range to improve fault tolerance. Correspondingly, the light intensity range of the nighttime state is also adjusted, and the maximum light intensity of the target light intensity range of the nighttime state is less than the second light intensity range of the nighttime state.

[0113] It is understandable that the target light intensity range of the daytime state is increased, and the light intensity range of the nighttime state is correspondingly decreased, and the first ambient light intensity is judged again to determine whether the first ambient light intensity is within the adjusted target light intensity range of the nighttime state. If the first ambient light intensity is not within the target light intensity range corresponding to the nighttime state, it indicates that the preliminary judgment result is wrong, and the first ambient light intensity will not be determined as the nighttime state in the end, thereby avoiding the mistaken determination of the first ambient light intensity in the daytime state as the nighttime state, and avoiding the misjudgment of the day-night switch.

[0114] In some embodiments, when the first ambient light intensity is within the light intensity range of the night state, it can be determined that the ambient light intensity around the HUD is small, and then the user preference information corresponding to the night state is obtained, and then based on the brightness level parameters indicated by the user preference information corresponding to the night state, the first brightness corresponding to the first ambient light intensity on the first brightness curve is adjusted to obtain the target brightness, so that the HUD light source emits light more in line with the user's preference.

[0115] In the above embodiment, when the target state is preliminarily determined to be a night state based on the first ambient light intensity, whether the first ambient light intensity is in a night state is accurately determined again based on the historical ambient light intensity collected previously, thereby setting the brightness of the HUD light source based on the user preference corresponding to the night state to meet the user's personalized needs.

[0116] S204: Control the head-up display device to adjust to the target brightness.

[0117] In some embodiments, in order to avoid discomfort caused by a sudden change in HUD brightness to the user, the brightness is set to be adjusted and changed at a preset frequency within a preset duration. The preset duration is a preset user-friendly brightness change duration, such as 2 seconds; the preset frequency is a preset frequency of brightness change, such as 1 nit every 50 milliseconds. The HUD is controlled to adjust to the target brightness within the preset duration, so as to achieve a smooth transition to the target brightness for lighting, ensuring that the user can have a good visual experience.

[0118] In summary, the present disclosure first obtains external environment information, determines multiple light intensity intervals corresponding to the external environment information, then matches the multiple light intensity intervals, and then sets the first brightness according to the matching results and preset rules. In this process, the hysteresis interval is set to avoid misjudgment of day and night switching; further obtains user preference information, and adjusts the first brightness according to the user preference information to obtain the target brightness, so as to control the light source of the head-up display device to emit light based on the target brightness. In order to adapt to changes in the external environment, the corresponding multiple light intensity intervals are first determined, and after matching, the first brightness is first set according to the preset rules, and then the first brightness is adjusted according to the user preference information to obtain the target brightness for controlling the light source to emit light, so that the light source of the head-up display device can adapt to the external environment and emit light according to different user preferences, thereby improving scene adaptability and user experience.

[0119] like Figure 4 As shown, Figure 4 A schematic diagram of a head-up display device brightness control device is provided for an embodiment of the present disclosure, the device comprising:

[0120] An acquisition module 401 is used to acquire external environment information and determine a plurality of light intensity intervals corresponding to the external environment information;

[0121] A matching module 402, configured to match the plurality of light intensity intervals and set a first brightness according to a matching result and a preset rule;

[0122] An adjustment module 403 is used to obtain user preference information and adjust the first brightness according to the user preference information to obtain a target brightness;

[0123] The control module 404 is used to control the head-up display device to adjust to a target brightness.

[0124] As an optional implementation of the embodiment of the present disclosure, the external environment information includes at least one of the first ambient light intensity, time information, and weather information of the current location collected by the optical sensor;

[0125] The acquisition module 401 is specifically used to: determine a first light intensity interval corresponding to the first ambient light intensity;

[0126] A second light intensity interval corresponding to the time information and the weather information of the current location is determined.

[0127] As any optional implementation manner in the embodiments of the present disclosure, as an optional implementation manner in the embodiments of the present disclosure, the matching module 402 is further configured to display the first brightness level corresponding to the first brightness in the vehicle-machine interaction interface;

[0128] The acquiring user preference information and adjusting the first brightness according to the user preference information to obtain a target brightness includes:

[0129] In response to a brightness adjustment input by a user in the vehicle-computer interaction interface, obtaining a second brightness level parameter corresponding to the brightness adjustment input;

[0130] Calculate the user preference information according to the first brightness level parameter and the second brightness level parameter;

[0131] The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

[0132] As an optional implementation of the embodiment of the present disclosure, the matching module 402, after calculating the user preference information according to the first brightness level parameter and the second brightness level parameter, is further used to: obtain the second ambient light intensity collected by the optical sensor;

[0133] When the second ambient light intensity is within the light intensity range of the target state, storing the user preference information in correspondence with the target state;

[0134] The target state is a daytime state or a nighttime state.

[0135] As an optional implementation of the embodiment of the present disclosure, the adjustment module 403 is specifically used to: if the first ambient light intensity is within the light intensity range of the target state, obtain the pre-stored first user preference information corresponding to the target state, the target state is a daytime state or a nighttime state, and the user preference information corresponding to the target state indicates a brightness level parameter;

[0136] The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

[0137] As an optional implementation of the embodiment of the present disclosure, the matching module 402 is specifically configured to: if the first light intensity interval matches the second light intensity interval, determine the first brightness according to the first ambient light intensity and the first brightness curve; wherein the first brightness curve is a brightness curve corresponding to the first light intensity interval, and the brightness curve is a curve of the relationship between the preset ambient light intensity and the brightness of the light source of the head-up display device;

[0138] If the first light intensity interval does not match the second light intensity interval, an adjustment coefficient is determined according to the first light intensity interval and the second light intensity interval, and the brightness corresponding to the first ambient light intensity on the first brightness curve is adjusted according to the adjustment coefficient to obtain a first brightness.

[0139] As an optional implementation of the embodiment of the present disclosure, the control module 404 is specifically used to control the light source of the head-up display device to adjust to a target brightness at a preset frequency within a preset time.

[0140] like Figure 5 As shown, Figure 5 The present disclosure provides a schematic diagram of the structure of an electronic device, which includes: a processor, a memory, and a computer program stored in the memory and executable on the processor, and when the computer program is executed by the processor, each process of the head-up display device brightness control method in the above method embodiment is implemented. The same technical effect can be achieved, and it will not be repeated here to avoid repetition.

[0141] An embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, each process of the head-up display device brightness control method in the above method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0142] The computer readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc.

[0143] An embodiment of the present invention provides a computer program product, which stores a computer program. When the computer program is executed by a processor, each process of the head-up display device brightness control method in the above method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0144] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present disclosure may take the form of a computer program product implemented on one or more computer-usable storage media containing computer-usable program code.

[0145] In the present disclosure, the processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0146] In the present disclosure, memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. Memory is an example of a computer-readable medium.

[0147] In the present disclosure, computer-readable media include permanent and non-permanent, removable and non-removable storage media. Storage media can be implemented by any method or technology to store information, and the information can be computer-readable instructions, data structures, modules of programs or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. According to the definition in this article, computer-readable media does not include temporary computer-readable media (transitory media), such as modulated data signals and carrier waves.

[0148] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0149] The above are only specific embodiments of the present disclosure, so that those skilled in the art can 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 herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for controlling brightness of a head-up display device, characterized in that: include: Acquire external environment information, and determine a plurality of light intensity intervals corresponding to the external environment information; Matching the multiple light intensity intervals, and setting a first brightness according to the matching result and a preset rule; Acquire user preference information, and adjust the first brightness according to the user preference information to obtain a target brightness; The head-up display device is controlled to adjust to the target brightness.

2. The method according to claim 1, characterized in that The external environment information includes at least one of the first ambient light intensity, time information, and weather information of the current location collected by the optical sensor; The acquiring of external environment information and determining a plurality of light intensity intervals corresponding to the external environment information includes: determining a first light intensity interval corresponding to the first ambient light intensity; A second light intensity interval corresponding to the time information and the weather information of the current location is determined.

3. The method according to claim 2, characterized in that After matching the multiple light intensity intervals and setting the first brightness according to the matching results and the preset rules, the method further includes: Displaying a first brightness level parameter corresponding to the first brightness in a vehicle-machine interaction interface; The acquiring user preference information and adjusting the first brightness according to the user preference information to obtain a target brightness includes: In response to a brightness adjustment input by a user in the vehicle-computer interaction interface, obtaining a second brightness level parameter corresponding to the brightness adjustment input; Calculate the user preference information according to the first brightness level parameter and the second brightness level parameter; The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

4. The method according to claim 3, characterized in that After the user preference information is calculated according to the first brightness level parameter and the second brightness level parameter, the method further includes: Acquire the second ambient light intensity collected by the optical sensor; When the second ambient light intensity is within the light intensity range of the target state, storing the user preference information in correspondence with the target state; The target state is a daytime state or a nighttime state.

5. The method according to claim 4, characterized in that The acquiring user preference information and adjusting the first brightness according to the user preference information to obtain a target brightness includes: If the first ambient light intensity is within the light intensity range of the target state, obtaining pre-stored user preference information corresponding to the target state, the target state being a daytime state or a nighttime state, and the user preference information corresponding to the target state indicating a brightness level parameter; The first brightness is adjusted according to the brightness level parameter indicated by the user preference information to obtain a target brightness.

6. The method according to any one of claims 2 to 5, characterized in that: The matching of the multiple light intensity intervals and setting the first brightness according to the matching result and a preset rule includes: If the first light intensity interval matches the second light intensity interval, determining a first brightness according to the first ambient light intensity and a first brightness curve; wherein the first brightness curve is a brightness curve corresponding to the first light intensity interval, and the brightness curve is a curve of a relationship between a preset ambient light intensity and a brightness of a light source of a head-up display device; If the first light intensity interval does not match the second light intensity interval, an adjustment coefficient is determined according to the first light intensity interval and the second light intensity interval, and the brightness corresponding to the first ambient light intensity on the first brightness curve is adjusted according to the adjustment coefficient to obtain a first brightness.

7. The method according to claim 1, characterized in that The controlling the head-up display device to adjust to the target brightness includes: The head-up display device is controlled to adjust to the target brightness at a preset frequency within a preset time period.

8. A head-up display device brightness control device, characterized in that: include: An acquisition module, used to acquire external environment information and determine a plurality of light intensity intervals corresponding to the external environment information; A matching module, used for matching the multiple light intensity intervals and setting the first brightness according to the matching result and a preset rule; an adjustment module, configured to obtain user preference information, and adjust the first brightness according to the user preference information to obtain a target brightness; The control module is used to control the head-up display device to adjust to a target brightness.

9. An electronic device, characterized in that: include: A processor, a memory, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the method for controlling the brightness of a head-up display device according to any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium, characterized in that: include: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the head-up display device brightness control method according to any one of claims 1 to 7 is implemented.

11. A vehicle, characterized in that: include: The head-up display device brightness control device as claimed in claim 8, or the electronic device as claimed in claim 9.

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