Display method and device of head-up display

Abstract

The invention provides a display method and device of a head-up display, and belongs to the technical field of vehicles. The method comprises the following steps: periodically acquiring a to-be-displayed image of the head-up display through a video line, and periodically acquiring first driving related information through a signal transmission line; acquiring second driving related information in the to-be-displayed image; comparing the second driving related information with the first driving related information; if the second driving related information is the same as the first driving related information, controlling the head-up display to display the to-be-displayed image; and if the second driving related information is different from the first driving related information in continuous N periods, performing image drawing based on the first driving related information to obtain a drawn image, and controlling the head-up display to display the drawn image. According to the invention, the driving safety is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and particularly to a display method and device for a head-up display. Background Art

[0002] With the booming development of the new four modernizations in the automotive industry, the market prospect of automotive intelligence is becoming increasingly broad. As an important part of automotive intelligence, the products in the vehicle cockpit are being updated more and more frequently. The head-up display is a new type of display device in the cockpit products. Its principle is that the screen image in the head-up display is reflected twice and finally projected onto the front windshield, enabling the driver to master driving-related information without having to look down at the instrument panel.

[0003] Currently, the display method of the head-up display is to receive the image data sent by the host computer, and then the head-up display directly displays the image data.

[0004] However, information loss and other situations may occur during the transmission of the image data, resulting in problems such as the head-up display being unable to continue displaying driving-related information or the driving-related information displayed being incorrect, thereby reducing driving safety. Summary of the Invention

[0005] The present disclosure provides a display method and device for a head-up display, which can solve the technical problems existing in the related art. The technical solutions are as follows:

[0006] On the one hand, a display method for a head-up display is provided. The method includes:

[0007] Periodically obtain the image to be displayed of the head-up display through a video line, and periodically obtain the first driving-related information through a signal transmission line;

[0008] Obtain the second driving-related information in the image to be displayed;

[0009] Compare the second driving-related information with the first driving-related information; if the second driving-related information is the same as the first driving-related information, control the head-up display to display the image to be displayed; if in N consecutive cycles, the second driving-related information is different from the first driving-related information, perform image drawing based on the first driving-related information to obtain a drawn image, and control the head-up display to display the drawn image, where N is a positive integer.

[0010] In a possible implementation, the obtaining the second driving-related information in the image to be displayed includes:

[0011] Intercept the region image corresponding to the second driving-related information in the to-be-displayed image based on the preset region corresponding to the second driving-related information.

[0012] In a possible implementation manner, the comparing the second driving-related information with the first driving-related information includes:

[0013] Obtain the target image corresponding to the first driving-related information from multiple pre-stored images;

[0014] Perform image comparison between the target image and the region image.

[0015] In a possible implementation manner, the obtaining a drawn image based on the first driving-related information includes:

[0016] Obtain the target image corresponding to the first driving-related information from multiple pre-stored images;

[0017] Obtain the drawn image based on the target image.

[0018] In a possible implementation manner, the obtaining the drawn image based on the target image includes:

[0019] When the number of the first driving-related information is one, use the target image as the drawn image;

[0020] When the number of the first driving-related information is multiple, perform splicing processing on the target images corresponding to the multiple first driving-related information according to the preset positions of each first driving-related information to obtain the drawn image.

[0021] In a possible implementation manner, after controlling the head-up display to display the drawn image, the method further includes:

[0022] If the second driving-related information and the first driving-related information are the same in M consecutive cycles, control the head-up display to display the to-be-displayed image obtained in the current cycle, where M is a positive integer.

[0023] In a possible implementation manner, the method further includes:

[0024] Obtain ambient brightness information;

[0025] Adjust the display brightness of the to-be-displayed image or the drawn image based on the ambient brightness information.

[0026] In a possible implementation manner, the method further includes:

[0027] When the reception of the environmental brightness information is abnormal, based on the preset brightness information, control the image to be displayed or the drawn image for display.

[0028] In a possible implementation, the preset brightness information includes a first preset brightness value and a second preset brightness value, and the first preset brightness value is less than the second preset brightness value;

[0029] The controlling the image to be displayed or the drawn image for display based on the preset brightness information includes:

[0030] Obtain the status of the vehicle's automatic headlight;

[0031] If the status of the automatic headlight is on, control the image to be displayed or the drawn image to be displayed with the first preset brightness value;

[0032] If the status of the automatic headlight is off, control the image to be displayed or the drawn image to be displayed with the second preset brightness value.

[0033] On the other hand, a display device of a head-up display is provided, and the device includes:

[0034] A first acquisition module, configured to periodically acquire the image to be displayed of the head-up display through a video line, and periodically acquire first driving-related information through a signal transmission line;

[0035] A second acquisition module, configured to acquire second driving-related information in the image to be displayed;

[0036] A control module, configured to compare the second driving-related information with the first driving-related information; if the second driving-related information is the same as the first driving-related information, control the head-up display to display the image to be displayed; if in N consecutive cycles, the second driving-related information is different from the first driving-related information, perform image drawing based on the first driving-related information to obtain a drawn image, and control the head-up display to display the drawn image, where N is a positive integer.

[0037] In a possible implementation, the second acquisition module is configured to:

[0038] Based on a preset area corresponding to the second driving-related information, intercept a regional image corresponding to the second driving-related information in the image to be displayed.

[0039] In a possible implementation, the control module is configured to:

[0040] Obtain a target image corresponding to the first driving-related information from multiple pre-stored images;

[0041] Compare the target image with the regional image.

[0042] In a possible implementation, the control module is configured to:

[0043] Obtain the target image corresponding to the first driving-related information from multiple pre-stored images;

[0044] Obtain the drawn image based on the target image.

[0045] In a possible implementation, the control module is configured to:

[0046] When the number of the first driving-related information is one, use the target image as the drawn image;

[0047] When the number of the first driving-related information is multiple, splice the target images corresponding to the multiple first driving-related information according to the preset positions of each first driving-related information to obtain the drawn image.

[0048] In a possible implementation, the control module is further configured to:

[0049] If in consecutive M cycles, the second driving-related information is the same as the first driving-related information, control the head-up display to display the to-be-displayed image obtained in the current cycle, where M is a positive integer.

[0050] In a possible implementation, the control module is further configured to:

[0051] Obtain ambient brightness information;

[0052] Adjust the display brightness of the to-be-displayed image or the drawn image based on the ambient brightness information.

[0053] In a possible implementation, the control module is further configured to:

[0054] When the reception of the ambient brightness information is abnormal, control the to-be-displayed image or the drawn image to be displayed based on preset brightness information.

[0055] In a possible implementation, the preset brightness information includes a first preset brightness value and a second preset brightness value, and the first preset brightness value is less than the second preset brightness value;

[0056] The control module is configured to:

[0057] Obtain the status of the vehicle's automatic headlight;

[0058] If the state of the automatic headlight is the on state, control the image to be displayed or the drawn image to be displayed with the first preset brightness value;

[0059] If the state of the automatic headlight is the off state, control the image to be displayed or the drawn image to be displayed with the second preset brightness value.

[0060] The beneficial effects brought by the technical solution provided by the present disclosure are as follows: In the solution mentioned in the present disclosure, the second driving-related information in the image to be displayed is compared with the first driving-related information obtained through the signal transmission line. If they are the same, it indicates that there is no abnormal situation such as loss in the image to be displayed, and it can be directly displayed. If they are different in N consecutive cycles, it indicates that an abnormal situation has occurred in the image to be displayed, and it is not displayed. Instead, the first driving-related information obtained through the signal transmission line is used for image display to display the correct driving-related information for the driver, thereby improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0062] Figure 1 is a flowchart of a display method of a head-up display provided by an embodiment of the present disclosure;

[0063] Figure 2 is a schematic diagram of a head-up display provided by an embodiment of the present disclosure;

[0064] Figure 3 is a schematic structural diagram of a display device of a head-up display provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0065] To make the purpose, technical solutions, and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the drawings.

[0066] The display method of the head-up display provided by the embodiments of the present disclosure can be applied to the head-up display of a vehicle. The head-up display may include a controller (such as an MCU, etc.), a memory (including external flash, eeprom, etc.), a driver (including an LED driver, a motor driver, etc.), one or more power management chips, a signal processing chip (including a video deserialization chip, and a CAN signal processing chip or a LIN signal processing chip), connectors (power line connectors, signal transmission connectors, video connectors, etc.), wiring harnesses (power wiring harnesses, video wiring harnesses, and CAN buses or LIN buses), and so on.

[0067] Figure 1 is a flowchart of a display method of a head-up display provided by the embodiments of the present disclosure. Figure 2 is a schematic diagram of a head-up display provided by the embodiments of the present disclosure. Refer to Figure 1 and Figure 2 , this embodiment includes:

[0068] 101. Periodically obtain the image to be displayed on the head-up display through a video line, and periodically obtain the first driving-related information through a signal transmission line.

[0069] In implementation, when controlling the head-up display to display, the image to be displayed on the head-up display can be periodically obtained through a video line. The image to be displayed is the image that the head-up display is about to display, and one or more driving-related information will be displayed in the image to be displayed, which is the second driving-related information introduced later.

[0070] In addition to obtaining the image to be displayed, the first driving-related information will also be periodically obtained through a signal transmission line. The quantity and type of the first driving-related information are the same as those of the second driving-related information in the image to be displayed.

[0071] In a possible implementation manner, both the first driving-related information and the second driving-related information include at least one of vehicle speed information, navigation information, warning information, and intelligent driving information.

[0072] In implementation, the image to be displayed will display at least one of vehicle speed information, navigation information, warning information, and intelligent driving information, and the head-up display will also obtain data such as vehicle speed information, navigation information, warning information, and intelligent driving information through a signal transmission line.

[0073] The first driving-related information and the second driving-related information may also include any other driving-related information, and the embodiments of the present disclosure do not limit this.

[0074] In a possible implementation, the signal transmission line includes a CAN bus or a LIN bus. In this way, the first driving-related information obtained through the CAN bus or the LIN bus is relatively stable and accurate, facilitating subsequent comparison and processing.

[0075] Of course, the signal transmission line can also be other lines. For example, it can be the signal transmission line between the head-up display and other upper computers, etc. The embodiments of the present disclosure do not limit this.

[0076] 102. Obtain the second driving-related information in the image to be displayed.

[0077] In implementation, after the head-up display obtains the image to be displayed, it can obtain the second driving-related information in the image to be displayed for subsequent comparison and processing.

[0078] In a possible implementation, the method for obtaining the second driving-related information can be: based on the preset area corresponding to the second driving-related information, intercept the area image corresponding to the second driving-related information in the image to be displayed.

[0079] In implementation, the head-up display prestores the preset area corresponding to each second driving-related information, and the preset area can be a range of an area in the image to be displayed.

[0080] In this way, when it is necessary to obtain the second driving-related information in the image to be displayed, for each second driving-related information, the corresponding area image can be intercepted in the image to be displayed according to the preset area corresponding to the second driving-related information, and the specific data of the second driving-related information to be displayed is within this area image.

[0081] For example, if the preset area corresponding to the vehicle speed information is the upper left corner area in the image to be displayed, then when obtaining the vehicle speed information in the image to be displayed, the image of the upper left corner area in the image to be displayed can be intercepted to obtain the area image corresponding to the vehicle speed information.

[0082] In another possible implementation, the method for obtaining the second driving-related information can also be: perform image recognition on the image to be displayed to obtain the second driving-related information in the image to be displayed.

[0083] The appropriate obtaining method can be set according to the specific hardware design and software design of the head-up display. The embodiments of the present disclosure do not limit this.

[0084] 103. Compare the second driving-related information with the first driving-related information; if the second driving-related information is the same as the first driving-related information, control the head-up display to display the image to be displayed; if in N consecutive cycles, the second driving-related information is different from the first driving-related information, perform image rendering based on the first driving-related information to obtain a rendered image, and control the head-up display to display the rendered image.

[0085] In implementation, after obtaining the second driving-related information in the image to be displayed, compare it with the first driving-related information obtained through the signal transmission line.

[0086] If they are the same, it indicates that there is no abnormal situation such as loss in the image to be displayed, and the second driving-related information included in the image to be displayed is accurate and error-free. At this time, the image to be displayed can be directly displayed for the driver to view.

[0087] If they are different, it indicates that there may be an abnormal situation such as loss in the image to be displayed. At this time, to verify whether the image to be displayed has actually had an abnormal situation, it can be further determined whether the first driving-related information and the second driving-related information obtained in N consecutive cycles are both different.

[0088] If they are different in N consecutive cycles, it indicates that the image to be displayed has indeed had an abnormal situation, and the second driving-related information included in the image to be displayed may also be inaccurate. Therefore, at this time, the head-up display does not display the image to be displayed, but renders the first driving-related information obtained through the signal transmission line to obtain a rendered image, and displays the rendered image.

[0089] In this way, since the signal transmission line is a CAN bus or a LIN bus, the accuracy rate of the first driving-related information transmitted by it is relatively high. Therefore, the information in the rendered image rendered based on the first driving-related information is relatively accurate, and the correct driving-related information is displayed for the driver, thereby improving driving safety.

[0090] Wherein, N is a positive integer, and the specific value of N can be any reasonable value. For example, it can be 3 or 5, etc. The embodiments of the present disclosure do not limit this.

[0091] After controlling the head-up display to display the rendered image, the following processing can also be performed:

[0092] If in M consecutive cycles, the second driving-related information is the same as the first driving-related information, control the head-up display to display the image to be displayed obtained in the current cycle.

[0093] In implementation, after controlling the head-up display to display the drawn image, the to-be-displayed image received by the video line is polled, that is, after each to-be-displayed image is received, the second driving-related information in the to-be-displayed image is extracted and compared with the newly received first driving-related information.

[0094] If they are the same, it indicates that the to-be-displayed image may have returned to normal at this time. To verify whether the to-be-displayed image has truly returned to normal, it can be further determined whether the second driving-related information obtained in consecutive M cycles is the same as the first driving-related information.

[0095] If they are the same in consecutive M cycles, it indicates that the transmission of the to-be-displayed image has returned to normal at this time, and the to-be-displayed image obtained through the video line is accurate data. At this time, the head-up display can be controlled to directly display the to-be-displayed image, and continue to provide accurate driving-related information for the driver.

[0096] Wherein, M is a positive integer, and the specific value of M can be any reasonable value. For example, it can be 3 or 5, etc. The embodiments of the present disclosure do not limit this.

[0097] In a possible implementation manner, the second driving-related information includes third driving-related information and fourth driving-related information. The third driving-related information is the driving-related information that has been displayed in the head-up display. For example, it can be vehicle speed information, etc. The fourth driving-related information is the driving-related information that is occasionally displayed in the head-up display, or it can be said to be the driving-related information that is displayed based on a target response. For example, a warning message can be the information that is displayed in the head-up display based on a vehicle anomaly response.

[0098] Correspondingly, the first driving-related information can also include fifth driving-related information and sixth driving-related information. The fifth driving-related information is the driving-related information of the same type as the third driving-related information, and the sixth driving-related information is the driving-related information of the same type as the fourth driving-related information.

[0099] For the fifth driving-related information in the first driving-related information and the third driving-related information in the second driving-related information, the above steps 101-103 can be processed in each cycle.

[0100] For the sixth driving-related information in the first driving-related information and the fourth driving-related information in the second driving-related information, the processing mechanism can be: when the sixth driving-related information is received through the signal transmission line, the fourth driving-related information in the to-be-displayed image is triggered to be obtained, and the fourth driving-related information is compared with the sixth driving-related information.

[0101] If the fourth driving-related information is the same as the sixth driving-related information, and the third driving-related information is the same as the fifth driving-related information, then control the head-up display to display the image to be displayed.

[0102] If in consecutive N cycles, the fourth driving-related information is different from the sixth driving-related information, and / or the third driving-related information is different from the fifth driving-related information, then an image can be drawn based on the fifth driving-related information and the sixth driving-related information to obtain a drawn image, and control the head-up display to display the drawn image.

[0103] In this way, according to the actual display situations of the first driving-related information and the second driving-related information, comparison and verification can be performed between the two, thereby enhancing the more comprehensive comparison and verification of the second driving-related information in the image to be displayed, and thus enhancing driving safety.

[0104] It can be understood that the comparison method between the fourth driving-related information and the sixth driving-related information, and the comparison method between the third driving-related information and the fifth driving-related information are both the same as the first driving-related information and the second driving-related information mentioned in the embodiments of the present disclosure, and the acquisition methods of these driving-related information are also the same as the acquisition methods of the first driving-related information and the second driving-related information, which will not be elaborated here.

[0105] In the embodiments of the present disclosure, there can be various methods for comparing the first driving-related information and the second driving-related information. Below, several possible ones will be introduced:

[0106] In a possible implementation manner, when the method for obtaining the second driving-related information in step 102 is to intercept a region image in the image to be displayed based on a preset region corresponding to the second driving-related information, correspondingly, the comparison method between the first driving-related information and the second driving-related information can be: obtaining a target image corresponding to the first driving-related information from multiple pre-stored images, and performing image comparison between the target image and the region image.

[0107] In implementation, images corresponding to each first driving-related information can be pre-stored in the head-up display. For example, when the first driving-related information includes vehicle speed information, images with various values of vehicle speed information can be pre-stored in the head-up display.

[0108] The size of the image corresponding to the first driving-related information is the same as the size of the preset region of the second driving-related information corresponding to the first driving-related information.

[0109] When it is necessary to compare each piece of first driving-related information with the corresponding second driving-related information, the following processing can be performed on each piece of first driving-related information: First, an image corresponding to the first driving-related information can be obtained from a plurality of pre-stored images, which is the target image, and then the target image is compared with the regional image of the second driving-related information corresponding to the first driving-related information.

[0110] If the images are the same, it indicates that the first driving-related information is the same as the second driving-related information. If the images are different, it indicates that the first driving-related information and the second driving-related information are different. It can be understood that the "same" or "different" mentioned in the embodiments of the present disclosure refers to the sameness or difference between the specific parameters of the first driving-related information and the specific parameters of the second driving-related information.

[0111] For example, if the specific parameter of the vehicle speed information transmitted through the signal transmission line is 80 km / h, and the specific parameter of the vehicle speed information shown in the regional image intercepted from the image to be displayed transmitted through the video line is 90 km / h, it indicates that the first driving-related information is different from the second driving-related information.

[0112] If the specific parameter of the vehicle speed information transmitted through the signal transmission line is 80 km / h, and the specific parameter of the vehicle speed information shown in the regional image intercepted from the image to be displayed transmitted through the video line is also 80 km / h, it indicates that the first driving-related information is the same as the second driving-related information.

[0113] In another possible implementation manner, when the method for obtaining the second driving-related information in step 102 is to perform character recognition on the image to be displayed, correspondingly, the comparison method between the first driving-related information and the second driving-related information can be: directly comparing the second driving-related information with the first driving-related information.

[0114] In the embodiments of the present disclosure, there can also be various methods for drawing an image based on the first driving-related information. Below, possible drawing methods will be introduced:

[0115] Obtain the target image corresponding to the first driving-related information from a plurality of pre-stored images, and obtain a drawn image based on the target image.

[0116] In implementation, the head-up display can pre-store images corresponding to each piece of first driving-related information. The size of the image corresponding to the first driving-related information is the same as the size of the preset area of the second driving-related information corresponding to the first driving-related information.

[0117] When it is necessary to draw an image of the first driving-related information, the image corresponding to each first driving-related information can be obtained from the pre-stored images, that is, the target image corresponding to each first driving-related information is obtained. Then, the drawing image is obtained based on the target image corresponding to the first driving-related information.

[0118] Further, the method of obtaining the drawing image based on the target image corresponding to the first driving-related information can be: when the number of the first driving-related information is one, the target image is used as the drawing image; when the number of the first driving-related information is multiple, according to the preset positions of each first driving-related information, the target images corresponding to the multiple first driving-related information are spliced to obtain the drawing image.

[0119] In implementation, if the number of both the first driving-related information and the second driving-related information is one, the head-up display only needs to display this one driving-related information. Therefore, the target image corresponding to the first driving-related information can be obtained from the pre-stored multiple images, and then the target image is directly determined as the drawing image, and the head-up display is controlled to display the drawing image.

[0120] If the number of both the first driving-related information and the second driving-related information is multiple, it means that the head-up display needs to display these multiple driving-related information. Therefore, the target images corresponding to each first driving-related information can be obtained from the pre-stored multiple images, and then according to the preset positions of each first driving-related information in the drawing image, the target images corresponding to the multiple first driving-related information are spliced, and they are combined into a complete image, which is the drawing image.

[0121] The method of obtaining the drawing image can be any of the above, or any other reasonable method, and the embodiments of the present disclosure do not limit this.

[0122] In the embodiments of the present disclosure, the display method of the head-up display may further include the following processing: obtaining the ambient brightness information, and adjusting the display brightness of the image to be displayed or the drawing image based on the ambient brightness information.

[0123] In implementation, during the display process of the head-up display, the ambient brightness information is continuously obtained. The ambient brightness information can be transmitted through a signal transmission line, or can also be directly transmitted by a light sensor provided on the vehicle. The embodiments of the present disclosure do not limit this.

[0124] The head-up display can adaptively adjust the display brightness of the image to be displayed or the drawn image according to the ambient light sensor, so as to avoid the situation where the display brightness is too high and blocks the driver's vision, affecting driving safety, and avoid the situation where the display brightness is too low and the line of sight is unclear, affecting driving safety. In this way, driving safety is improved.

[0125] In a possible implementation, when the reception of ambient light information is abnormal, the display of the image to be displayed or the drawn image can be controlled based on the preset light information.

[0126] In practice, when the ambient light information fails or is lost during transmission, the display brightness of the head-up display can no longer be adjusted based on the ambient light information. At this time, the display image or the drawn image can be controlled based on the preset light information, so that the display brightness of the head-up display is within a range where the content can be clearly seen and is not too bright, thereby improving driving safety.

[0127] In a possible implementation, the preset light information may include a first preset light value and a second preset light value, and the first preset light value is less than the second preset light value.

[0128] Correspondingly, the method of displaying based on the preset light information may be: obtaining the status of the vehicle's automatic headlight, if the automatic headlight status is on, controlling the image to be displayed or the drawn image to be displayed at the first preset light value, and if the automatic headlight status is off, controlling the image to be displayed or the drawn image to be displayed at the second preset light value.

[0129] In practice, when the reception of ambient light information is abnormal, the status of the vehicle's automatic headlight can be obtained through the signal transmission line.

[0130] When the automatic headlight status is on, it is determined that it is night. At this time, the head-up display can be controlled to be displayed at the first preset light value, and this first preset light value is relatively small and can adapt to the night brightness, so that the display brightness of the head-up display is neither too bright nor too dark.

[0131] When the automatic headlight status is off, it is determined that it is day. At this time, the head-up display can be controlled to be displayed at the second preset light value, and this second preset light value is relatively large and can adapt to the day brightness, so that the display brightness of the head-up display is neither too bright nor too dark.

[0132] Among them, the first preset light value can be 100 nit, and the second preset light value can be 5000 nit. Of course, it can also be other reasonable light values, which can be adjusted and set according to the local actual ambient light information. The embodiments of the present disclosure do not limit this.

[0133] In another possible implementation, the preset brightness information may include a third preset brightness value corresponding to each time point.

[0134] Correspondingly, the method of performing display based on the preset brightness information may be: obtaining the current time point, determining the third preset brightness value corresponding to the current time point based on the third preset brightness value corresponding to each time point stored in advance, and controlling the image to be displayed or the drawn image to be displayed with the third preset brightness value corresponding to the target time point.

[0135] In this way, the display brightness of the head-up display can be adjusted at each time point, thereby improving driving safety.

[0136] The method of adjusting the display brightness of the head-up display may be any one of the above, or may also be any other reasonable adjustment method, and the embodiments of the present disclosure do not limit this.

[0137] All of the above optional technical solutions may be combined arbitrarily to form optional embodiments of the present disclosure, which will not be elaborated herein one by one.

[0138] In the solution mentioned in the embodiments of the present disclosure, the second driving-related information in the image to be displayed is compared with the first driving-related information obtained through the signal transmission line. If they are the same, it means that there is no abnormal situation such as loss of the image to be displayed, and it can be directly displayed. If they are different for N consecutive cycles, it means that an abnormal situation has occurred in the image to be displayed, and it is not displayed. Instead, the first driving-related information obtained through the signal transmission line is used for image display to display correct driving-related information for the driver, thereby improving driving safety.

[0139] The embodiments of the present disclosure provide a display device for a head-up display. The device may be the computer device in the above embodiments, such as Figure 3 As shown, the device includes:

[0140] A first acquisition module 310, configured to periodically acquire the image to be displayed of the head-up display through a video line, and periodically acquire first driving-related information through a signal transmission line;

[0141] A second acquisition module 320, configured to acquire second driving-related information in the image to be displayed;

[0142] A control module 330 is configured to compare the second driving-related information with the first driving-related information; if the second driving-related information is the same as the first driving-related information, control the head-up display to display the image to be displayed; if in N consecutive cycles, the second driving-related information is different from the first driving-related information, perform image drawing based on the first driving-related information to obtain a drawn image, and control the head-up display to display the drawn image, where N is a positive integer.

[0143] In a possible implementation, the second acquisition module 320 is configured to:

[0144] Intercept the regional image corresponding to the second driving-related information in the image to be displayed based on the preset region corresponding to the second driving-related information.

[0145] In a possible implementation, the control module 330 is configured to:

[0146] Obtain the target image corresponding to the first driving-related information from multiple pre-stored images;

[0147] Perform image comparison between the target image and the regional image.

[0148] In a possible implementation, the control module 330 is configured to:

[0149] Obtain the target image corresponding to the first driving-related information from multiple pre-stored images;

[0150] Obtain the drawn image based on the target image.

[0151] In a possible implementation, the control module 330 is configured to:

[0152] When the number of the first driving-related information is one, use the target image as the drawn image;

[0153] When the number of the first driving-related information is multiple, splice the target images corresponding to the multiple first driving-related information according to the preset positions of each first driving-related information to obtain the drawn image.

[0154] In a possible implementation, the control module 330 is further configured to:

[0155] If in M consecutive cycles, the second driving-related information is the same as the first driving-related information, control the head-up display to display the image to be displayed obtained in the current cycle, where M is a positive integer.

[0156] In a possible implementation, the control module 330 is further configured to:

[0157] Get ambient brightness information;

[0158] Based on the ambient brightness information, the display brightness of the image to be displayed or the drawn image is adjusted.

[0159] In a possible implementation, the control module 330 is further configured to:

[0160] When the received ambient brightness information is abnormal, the image to be displayed or the drawn image is controlled to be displayed based on preset brightness information.

[0161] In a possible implementation, the preset brightness information includes a first preset brightness value and a second preset brightness value, and the first preset brightness value is smaller than the second preset brightness value;

[0162] The control module 330 is configured to:

[0163] Get the vehicle's automatic headlight status;

[0164] If the automatic headlight state is on, controlling the image to be displayed or the drawn image to be displayed at the first preset brightness value;

[0165] If the automatic headlight state is off, the image to be displayed or the drawn image is controlled to be displayed at the second preset brightness value.

[0166] It should be noted that the heads-up display device provided in the above embodiments is merely an example of the division of the aforementioned functional modules when displaying on the heads-up display. In actual applications, the aforementioned functions can be assigned to different functional modules as needed, i.e., the internal structure of the device can be divided into different functional modules to perform all or part of the functions described above. Furthermore, the heads-up display device provided in the above embodiments and the heads-up display method embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0167] Those skilled in the art will understand that all or part of the steps to implement the above embodiments may be accomplished by hardware, or by a program to instruct the relevant hardware, and the program may be stored in a computer-readable storage medium, which may be a read-only memory, a disk, or an optical disk, etc.

[0168] It should be noted that the information involved in this disclosure (including but not limited to user device information, user personal information, etc.), data (including but not limited to data for analysis, stored data, displayed data, etc.), and signals (including but not limited to signals transmitted between user terminals and other devices, etc.) are all authorized by users or fully authorized by all parties, and the collection, use, and processing of relevant data need to comply with relevant laws, regulations, and standards of relevant countries and regions. For example, the "first driving-related information", "second driving-related information", "image to be displayed", etc. involved in this disclosure are all obtained under sufficient authorization.

[0169] The above are only optional embodiments of this disclosure and are not intended to limit this disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this disclosure shall be included within the protection scope of this disclosure.

Claims

1. A display method for a head-up display, characterized in that, The method includes: Periodically obtaining the image to be displayed of the head-up display through a video line, and periodically obtaining first driving-related information through a signal transmission line; Obtaining second driving-related information in the image to be displayed; Comparing the second driving-related information with the first driving-related information; if the second driving-related information is the same as the first driving-related information, controlling the head-up display to display the image to be displayed; if in N consecutive cycles, the second driving-related information is different from the first driving-related information, then performing image drawing based on the first driving-related information to obtain a drawn image, and controlling the head-up display to display the drawn image, where N is a positive integer.

2. The method according to claim 1, wherein The obtaining the second driving-related information in the image to be displayed includes: Based on a preset area corresponding to the second driving-related information, intercepting an area image corresponding to the second driving-related information in the image to be displayed.

3. The method according to claim 2, characterized in that The comparing the second driving-related information with the first driving-related information includes: Obtaining a target image corresponding to the first driving-related information from a plurality of pre-stored images; Performing image comparison between the target image and the area image.

4. The method according to claim 1, wherein The performing image drawing based on the first driving-related information to obtain a drawn image includes: Obtaining a target image corresponding to the first driving-related information from a plurality of pre-stored images; Obtaining the drawn image based on the target image.

5. The method according to claim 4, wherein The obtaining the drawn image based on the target image includes: When the number of the first driving-related information is one, using the target image as the drawn image; When the number of the first driving-related information is multiple, splicing the target images corresponding to the multiple first driving-related information according to the preset positions of each first driving-related information to obtain the drawn image.

6. The method according to claim 1, wherein After controlling the head-up display to display the drawn image, the method further includes: If in M consecutive cycles, the second driving-related information is the same as the first driving-related information, controlling the head-up display to display the image to be displayed obtained in the current cycle, where M is a positive integer.

7. The method according to claim 1, characterized in that, The method further includes: Obtaining ambient brightness information; Adjusting the display brightness of the image to be displayed or the drawn image based on the ambient brightness information.

8. The method according to claim 7, wherein The method further includes: When the reception of the ambient brightness information is abnormal, controlling the display of the image to be displayed or the drawn image based on preset brightness information.

9. The method according to claim 8, wherein The preset brightness information includes a first preset brightness value and a second preset brightness value, and the first preset brightness value is less than the second preset brightness value; The controlling the display of the image to be displayed or the drawn image based on the preset brightness information includes: Obtaining the status of the vehicle's automatic headlight; If the status of the automatic headlight is the on state, controlling the image to be displayed or the drawn image to be displayed with the first preset brightness value; If the automatic headlight status is the off state, control the to-be-displayed image or the drawn image to be displayed with the second preset brightness value.

10. A display device of a head-up display, characterized in that, The device includes: A first acquisition module, configured to periodically acquire the to-be-displayed image of the head-up display through a video line and periodically acquire first driving-related information through a signal transmission line; A second acquisition module, configured to acquire second driving-related information in the to-be-displayed image; A control module, configured to compare the second driving-related information with the first driving-related information; if the second driving-related information is the same as the first driving-related information, control the head-up display to display the to-be-displayed image; if in N consecutive cycles, the second driving-related information is different from the first driving-related information, perform image drawing based on the first driving-related information to obtain a drawn image, and control the head-up display to display the drawn image, where N is a positive integer.

Images