An emergency display method, device and vehicle for a rearview mirror based on an electronic device

Abstract

The present application relates to the field of automotive technologies, and provides a method, an apparatus and a vehicle for emergency display of a rearview mirror based on an electronic device. The method includes: when a communication connection is established between the vehicle and the electronic device, sending an image acquisition instruction to the electronic device, where the image acquisition instruction includes an image acquisition frequency; receiving an image sequence obtained by the electronic device controlling a camera to take pictures in response to the image acquisition instruction, the image sequence including at least one image; determining a new image acquisition frequency based on vehicle condition information in the image sequence; updating and re-sending the image acquisition instruction based on the new image acquisition frequency; and displaying at least one image in the image sequence on a central control screen of the vehicle. The present application not only obtains the image sequence by updating and re-sending the image acquisition instruction, but also displays the image in the image sequence on the central control screen, so that a driver of the vehicle can see the road conditions on the side on the central control screen to overcome the problem that the rearview mirror cannot be used normally.

Description

Technical Field

[0001] The present application relates to the field of automobile technology, and in particular to a rearview mirror emergency display method, device and automobile based on electronic equipment. Background Art

[0002] When a vehicle has an accident and the rearview mirror is damaged, one or all of the rearview mirrors cannot be used. If the driver continues to drive the vehicle, he will not be able to effectively observe the road conditions on both sides of the vehicle, which is prone to traffic accidents. Therefore, in the scenario where the rearview mirror of the vehicle cannot be used in some unexpected situations, how to ensure that the driver can obtain the vehicle condition information on both sides of the vehicle in a timely manner, existing cars have no corresponding response strategy or feasible solution. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a rearview mirror emergency display method, device and vehicle based on an electronic device to solve the technical problem of how to obtain vehicle condition information on both sides of the vehicle when the rearview mirror is damaged and cannot be used.

[0004] According to a first aspect of an embodiment of the present application, a rearview mirror emergency display method based on an electronic device is provided, which includes: when a communication connection is established between a vehicle and the electronic device, sending an image acquisition instruction to the electronic device, the image acquisition instruction including an image acquisition frequency; receiving an image sequence obtained by the electronic device controlling a camera to take pictures in response to the image acquisition instruction, the image sequence including at least one image; determining a new image acquisition frequency based on vehicle condition information in the image sequence; updating and resending the image acquisition instruction based on the new image acquisition frequency; and displaying at least one image in the image sequence on the central control screen of the vehicle.

[0005] According to a second aspect of an embodiment of the present application, a rearview mirror emergency display device based on an electronic device is provided, which includes: an instruction sending module, configured to send an image acquisition instruction to the electronic device when a communication connection is established between the vehicle and the electronic device, the image acquisition instruction including an image acquisition frequency; an image receiving module, configured to receive an image sequence obtained by the electronic device controlling a camera to take pictures in response to the image acquisition instruction, the image sequence including at least one image; an acquisition frequency module, configured to determine a new image acquisition frequency based on vehicle condition information in the image sequence; an instruction update module, configured to update and resend the image acquisition instruction based on the new image acquisition frequency; and an image display module, configured to display at least one image in the image sequence on the central control screen of the vehicle.

[0006] According to a third aspect of an embodiment of the present application, a car is provided, comprising at least a body computer and a central control screen, wherein the body computer comprises a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the above method when executing the computer program.

[0007] Compared with the prior art, the embodiments of the present application have the following beneficial effects: when the rearview mirror of a car cannot be used normally due to an accident or other reasons, the above-mentioned rearview mirror emergency display method based on an electronic device connects the electronic device with a camera to communicate with the car, and the car sends an image acquisition instruction to the electronic device, and the image acquisition instruction includes an image acquisition frequency, so that the electronic device responds to the image acquisition instruction to control the camera to take pictures at the image acquisition frequency, and obtains a corresponding image sequence. The car receives the image sequence fed back by the electronic device, determines a new image acquisition frequency based on the vehicle condition information in the image sequence, and then updates and resends the image acquisition instruction, and displays at least one image in the image sequence on the central control screen of the vehicle on the other hand, so that the driver of the car can see the road condition information on the side on the central control screen, so as to overcome the problem that the rearview mirror cannot be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0009] Figure 1 It is a flowchart of a rearview mirror emergency display method based on an electronic device provided in an embodiment of the present application;

[0010] Figure 2 is a schematic diagram of a communication connection between a mobile phone and a car provided in an embodiment of the present application;

[0011] Figure 3 is a schematic diagram of a communication connection between a video capture device and a car provided in an embodiment of the present application;

[0012] Figure 4 It is a schematic diagram of the principle of an electronic device provided in an embodiment of the present application for taking images on a car;

[0013] Figure 5 It is a structural schematic diagram of a rearview mirror emergency display device based on an electronic device provided in an embodiment of the present application;

[0014] Figure 6 It is a structural schematic diagram of a car provided in an embodiment of the present application. DETAILED DESCRIPTION

[0015] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0016] Figure 1 It is a flow chart of a rearview mirror emergency display method based on an electronic device provided in an embodiment of the present application. Figure 1 The rearview mirror emergency display method based on an electronic device can be applied to a car to cope with a scenario where the rearview mirror of the car is accidentally damaged and the road condition information on the side of the vehicle cannot be viewed.

[0017] like Figure 1 As shown, the rearview mirror emergency display method based on electronic equipment includes:

[0018] S101, when a communication connection is established between the vehicle and the electronic device, sending an image acquisition instruction to the electronic device, where the image acquisition instruction includes an image acquisition frequency;

[0019] S102, receiving an image sequence obtained by the electronic device controlling a camera to take photos in response to an image acquisition instruction, where the image sequence includes at least one image;

[0020] S103, determining a new image acquisition frequency based on the vehicle condition information in the image sequence;

[0021] S104, updating and resending the image acquisition instruction based on the new image acquisition frequency;

[0022] S105, displaying at least one image in the image sequence on a central control screen of the vehicle.

[0023] According to the technical solution provided by the above-mentioned rearview mirror emergency display method based on electronic devices, when the rearview mirror of a car cannot be used normally due to an accident or other reasons, the electronic device with a camera can be connected to the car for communication, and the car sends an image acquisition instruction to the electronic device, the image acquisition instruction includes an image acquisition frequency, so that the electronic device responds to the image acquisition instruction to control the camera to take pictures at the image acquisition frequency, and obtains a corresponding image sequence. The car receives the image sequence fed back by the electronic device, on the one hand, determines a new image acquisition frequency based on the vehicle condition information in the image sequence, and then updates and resends the image acquisition instruction, and on the other hand, displays at least one image in the image sequence on the central control screen of the vehicle, so that the driver of the car can see the road condition information on the side on the central control screen, so as to overcome the problem that the rearview mirror cannot be used normally.

[0024] In the above step S101, the electronic device at least includes a camera, through which images or videos can be captured. The electronic device includes but is not limited to a mobile phone, a smart wearable device or a video capture device. For example, see Figure 2 When the electronic device is a mobile phone, the car and the mobile phone establish a wireless communication connection, including but not limited to a Bluetooth or WIFI connection, wherein the mobile phone may be installed with an application (i.e., APP) for controlling the acquisition of an image sequence, and by opening the application, the mobile phone is controlled to automatically acquire an image sequence, and the image sequence is sent to the car and displayed on the central control screen of the car; or, the application may be installed on the car, and the application of the car sends an image acquisition instruction to the mobile phone, so that the mobile phone acquires the corresponding image sequence according to the image acquisition instruction; or, the corresponding application is installed on both the mobile phone and the car, and a communication connection is established by starting the applications on the car and the mobile phone at the same time, so that the car sends an image acquisition instruction to the mobile phone, and the mobile phone responds to the image acquisition instruction sent by the car to acquire the image sequence, and the acquired image sequence is sent to the car.

[0025] For example, see Figure 3 When the electronic device is a video shooting device, the car and the video shooting device can establish a wired communication connection through a data cable, wherein an application for controlling the video shooting device can be installed on the car, through which the video shooting device connected to the car can be identified, and an image acquisition instruction can be sent to the video shooting device, and the video shooting device responds to the image acquisition instruction to capture the corresponding image sequence, and sends the image sequence to the car for display on the central control screen of the car.

[0026] In practical applications, the electronic device is fixed to the side of the car. Specifically, the specific fixing method between the electronic device and the car is not unique. For example, the electronic device can be fixed by pre-made professional equipment, or the electronic device can be fixed to the side of the car by equipment such as tape or suction cups. This application has no restrictions on this. In addition, the specific fixing position of the electronic device on the car can be the position of the rearview mirror of the car, or other positions on the damaged side of the rearview mirror. Since the specific fixing method between the electronic device and the car is not the contribution of this application to the prior art, it will not be described in detail here.

[0027] Specifically, the image acquisition frequency refers to the number of images captured by the electronic device per second. For example, when a car sends an image acquisition instruction, the electronic device captures a sequence of 10, 20, 30, 40, 50 or 60 images per second according to the image acquisition frequency contained in the image acquisition instruction. Of course, the electronic device can also capture other numbers of images per second as an image sequence according to the image acquisition frequency, and the present application has no restrictions on this.

[0028] In the above step S102, the image sequence is a set of images collected by the electronic device every second, that is, the images collected by the electronic device every second are regarded as an image sequence. Therefore, the image sequence includes more than one image, and generally includes multiple images.

[0029] In the above step S103, the vehicle condition information includes the number of vehicles in each image of the image sequence, and the distance between each vehicle in the image and the host vehicle.

[0030] In one embodiment, based on the vehicle condition information in the image sequence, a new image acquisition frequency is determined, including: identifying at least one image in the image sequence to determine whether the image contains a side vehicle; when there is a side vehicle in the image, identifying the number of side vehicles in the image and the distance between each side vehicle and the vehicle; based on the number of side vehicles and the distance between the side vehicles and the vehicle, generating a corresponding image acquisition frequency.

[0031] Specifically, the side vehicle refers to a vehicle object in an image corresponding to the image sequence. Since the electronic device is installed on the side of the car to capture images behind or to the side of the car, the vehicle in the image is referred to as the side vehicle for short.

[0032] In this embodiment, there are many specific implementation methods for determining whether an image contains a side vehicle. For example, an image containing a car can be used as a sample to train a machine learning model to obtain a target model that can automatically identify whether an image contains a vehicle. Then, the target model can be placed on the car to automatically identify images in the image sequence. Alternatively, an existing image recognition algorithm can be used to recognize images, and this application does not limit this.

[0033] The images in the image sequence can be identified by identifying each image in the image sequence one by one, or by regularly extracting some images in the image sequence for identification, for example, extracting the first and last two images in the image sequence and the middle image in the image sequence, and identifying the three extracted images respectively. Alternatively, other identification methods can be used, which are not limited in the present application.

[0034] Preferably, based on the use of the above-mentioned machine learning model or image recognition algorithm to identify the presence of side vehicles in the image, the number of side vehicles in the image can be counted according to the recognition result.

[0035] In addition, when it is recognized that the image corresponding to the image sequence contains a side vehicle, there is no unique implementation method for calculating the distance between the side vehicle and the host vehicle in the image.

[0036] For example, the size and position of the vehicle in the image are used to estimate its distance. The size of the vehicle is known in advance by measuring or using known objects for comparison. Then, the angles of the objects in the image are calculated and trigonometric functions are used to estimate the distance between the vehicle and the camera on the electronic device. The position of the electronic device on the car is a pre-specified position, so that the position between the electronic device and the car is relatively fixed, so that the position of the camera on the electronic device can be determined; or, after the electronic device is fixed on the car, a side image of the vehicle is provided to the user, and the user is asked to specify the installation position of the electronic device on the side image, and then the specific coordinate position of the electronic device is determined according to the position specified by the user on the side image. Therefore, the distance between the side vehicle and the camera of the electronic device, as well as the position of the distance between the camera and the electronic device are known, and the distance between the side vehicle and the electronic device can be determined through the position conversion relationship; and the distance and position between the electronic device and the car are also known, and the distance between the side vehicle and the vehicle can be obtained through the position conversion relationship. It can be understood that the accuracy requirements for the distance measurement results between the side vehicle and the vehicle in the image in this embodiment are not very strict, so the calculated distance measurement results are allowed to have a certain error with the actual distance. Of course, in practical applications, other technical means may also be used to calculate the distance between the side vehicle and the vehicle in the image, and this application does not impose any restrictions on this.

[0037] Preferably, in the above embodiment, based on the number of side vehicles and the distance between the side vehicles and the vehicle, a corresponding image acquisition frequency is generated, including: determining whether the distance between the side vehicles and the vehicle is less than or equal to a preset distance threshold; if so, adjusting the image acquisition frequency to a first preset frequency; if not, determining whether the number of side vehicles is greater than or equal to a preset number threshold; when the number of side vehicles is greater than or equal to the preset number threshold, adjusting the image acquisition frequency to a second preset frequency; when the number of side vehicles is less than the preset number threshold, adjusting the image acquisition frequency to a third preset frequency; wherein the first preset frequency is greater than the second preset frequency, and the second preset frequency is greater than the third preset frequency.

[0038] Specifically, the distance threshold and the quantity threshold can be thresholds customized according to user experience, or can be new thresholds obtained by adjusting the set thresholds according to actual vehicle condition information. This application has no restrictions on this.

[0039] Specifically, the first preset evaluation frequency, the second preset frequency, and the third preset frequency should be less than or equal to the maximum number of images captured by the electronic device. For example, if the maximum number of images captured by the electronic device is 120 frames per second, then the first preset evaluation frequency, the second preset frequency, and the third preset frequency can be set to any value between 1 and 120. Assuming that the first preset frequency is set to 60, it means that the electronic device will capture the image sequence at an image capture frequency of 60 images per second.

[0040] Preferably, after determining whether the image contains a side vehicle, the method further includes: when there is no side vehicle in the image, adjusting the image acquisition frequency to a fourth preset frequency, wherein the fourth preset frequency is less than the third preset frequency.

[0041] Specifically, like the first preset frequency, the second preset frequency, and the third preset frequency, the fourth preset frequency should also be less than or equal to the maximum number of images captured by the electronic device. In this embodiment, the fourth preset frequency is the minimum. If there is no side vehicle in the image corresponding to the image sequence, it means that there is no other car on the side of the electronic device at this time. Therefore, the image acquisition frequency can be reduced at this time to save energy consumption of the electronic device and enable the electronic device to work longer.

[0042] In one embodiment, following the above embodiment, at least one image in an image sequence is displayed on the central control screen of the vehicle, including: when there is a side vehicle in the image, partial images in the image sequence are displayed at intervals; when there is no side vehicle in the image, each image in the image sequence is displayed in turn.

[0043] Specifically, when there is a vehicle on the side in the image, there are cars in the images corresponding to the image sequence, and the changes in the vehicles on the side in each image will not be particularly large. Therefore, in this embodiment, some images in the image sequence are displayed at intervals, which can not only ensure the normal display effect of the image sequence, but also reduce the display capacity of the central control screen, so that the image sequence is displayed more smoothly on the central control screen. In addition, when there is no vehicle on the side in the image, there is no car in the image corresponding to the image sequence. Combined with the above embodiment, it can be seen that the image acquisition frequency at this time is very low, so the number of images in the image sequence is not large. Therefore, displaying all the images in the image sequence at this time does not consume the display capacity of the central control screen, and can also be discovered in time when a car appears on the side of the car.

[0044] Preferably, the interval display of some images in the image sequence may be to select images at the beginning and end of the image sequence and an image at the middle of the image sequence, and then display the three images in sequence according to the chronological order of the shooting time of the images.

[0045] In one embodiment, the above-mentioned rearview mirror emergency display method based on an electronic device also includes: after receiving an image sequence sent by the electronic device, identifying the relative position of the electronic device and the vehicle in the image where the image sequence is located; sequentially comparing the relative position corresponding to the currently received image sequence with the relative position corresponding to the last received image sequence to determine whether the relative position of the electronic device and the vehicle has changed; if changed, issuing a prompt message.

[0046] Among them, since the positions of the electronic device and the car are relatively fixed, and the electronic device can capture the side part of the car body. Specifically, the image corresponding to the image sequence includes the side part of the car body, and the position of the image corresponding to the side part of the car body is fixed, then, this embodiment determines the position of the electronic device on the car by detecting whether the position of the side part of the car in the image changes. For example, see Figure 4 , the part of the car body position M1 on the side is located in the shooting area of ​​the camera on the electronic device. When the camera captures an image P, there will be an image corresponding to the part of the car body position M1 in the image P, that is, M11 in the image P. Then, the image recognition algorithm is first used to detect the part of the car body position on the side in the image, and then the position of the part of the car body position in the image is calculated, and then the position of the part of the car body position corresponding to different image sequences in the image is compared. When it is detected that the relative position of the part of the car body position in the image has changed, it is determined that the fixed position of the electronic device on the car has changed. On the contrary, when it is detected that the relative position of the part of the car body position in the image has not changed, it is determined that the fixed position of the electronic device on the car has not changed.

[0047] Preferably, in this embodiment, one image in each image sequence is selected to identify the position of a part of the vehicle body at the side, and the position of the part of the vehicle body in the image.

[0048] In addition, the prompt information includes but is not limited to text prompt information, voice prompt information, image prompt information, etc. This embodiment has no limitation on the specific content and prompt method of the prompt information.

[0049] This embodiment detects whether the fixed position of the electronic device on the car has changed. When it is detected that the position of the electronic device on the car has changed, a prompt message is issued in time so that people in the car can know it in time and take corresponding measures.

[0050] Furthermore, if it is detected that the relative position of the electronic device and the vehicle has not changed, each image sequence may be continuously returned to be identified to determine whether the relative position of the electronic device and the vehicle in the image sequence has changed.

[0051] In one embodiment, the image sequence includes the shooting time of each picture; preferably, the above-mentioned display of at least one image in the image sequence on the central control screen of the vehicle also includes: based on the display time of the image in the image sequence on the central control screen of the vehicle, calculating the time difference between the display time and the shooting time of the displayed image; when displaying the image in the image sequence on the central control screen of the vehicle, synchronously displaying the time difference.

[0052] Specifically, assuming that there is an image A in the image sequence currently received by the car, the shooting time of image A is T1, and when image A is displayed on the central control screen, the display time of image A is T2, then the time difference between T2 and T1 is calculated and the time difference is synchronously displayed on the central control screen.

[0053] This embodiment calculates the length of image capture time and display time by recording the capture time of each image in the image sequence and the display time of each image on the central control screen, and synchronously displays the time difference of the image when the image is displayed on the central control screen, so that the user can understand the time delay between the content of the currently displayed image and the actual capture, thereby avoiding the driver from making wrong operations due to image display delays and improving driving safety.

[0054] All the above optional technical solutions can be arbitrarily combined to form optional embodiments of the present application, which will not be described one by one here.

[0055] The following is an embodiment of the device of the present application, which can be used to execute the embodiment of the method of the present application. For details not disclosed in the embodiment of the device of the present application, please refer to the embodiment of the method of the present application.

[0056] Figure 5Schematic diagram of a rearview mirror emergency display device based on an electronic device provided in an embodiment of the present application. Figure 5 As shown, the rearview mirror emergency display device based on electronic equipment includes:

[0057] The instruction sending module 501 is configured to send an image acquisition instruction to the electronic device when the vehicle establishes a communication connection with the electronic device, wherein the image acquisition instruction includes an image acquisition frequency;

[0058] The image receiving module 502 is configured to receive an image sequence obtained by the electronic device controlling the camera to take pictures in response to the image acquisition instruction, where the image sequence includes at least one image;

[0059] The acquisition frequency module 503 is configured to determine a new image acquisition frequency based on the vehicle condition information in the image sequence;

[0060] The instruction update module 504 is configured to update and resend the image acquisition instruction based on the new image acquisition frequency;

[0061] The image display module 505 is configured to display at least one image in the image sequence on the central control screen of the vehicle.

[0062] According to the technical solution provided in the embodiment of the present application, when the rearview mirror of a car cannot be used normally due to an accident or other reasons, an electronic device with a camera can be connected to the car for communication, and the car sends an image acquisition instruction to the electronic device, the image acquisition instruction includes an image acquisition frequency, so that the electronic device responds to the image acquisition instruction to control the camera to take pictures at the image acquisition frequency, and obtains a corresponding image sequence. The car receives the image sequence fed back by the electronic device, determines a new image acquisition frequency based on the vehicle condition information in the image sequence, and then updates and resends the image acquisition instruction, and displays at least one image in the image sequence on the central control screen of the vehicle on the other hand, so that the driver of the car can see the road condition information on the side on the central control screen, so as to overcome the problem that the rearview mirror cannot be used normally.

[0063] In some embodiments, Figure 5 The acquisition frequency module 503 is specifically configured to identify at least one image in the image sequence to determine whether the image contains a side vehicle; when there is a side vehicle in the image, identify the number of side vehicles in the image and the distance between each side vehicle and the vehicle; based on the number of side vehicles and the distance between the side vehicles and the vehicle, generate a corresponding image acquisition frequency.

[0064] In some embodiments, Figure 5The acquisition frequency module 503 is specifically configured to determine whether the distance between the side vehicle and the vehicle is less than or equal to a preset distance threshold; if so, adjust the image acquisition frequency to a first preset frequency; if not, determine whether the number of side vehicles is greater than or equal to a preset number threshold; when the number of side vehicles is greater than or equal to the preset number threshold, adjust the image acquisition frequency to a second preset frequency; when the number of side vehicles is less than the preset number threshold, adjust the image acquisition frequency to a third preset frequency; wherein the first preset frequency is greater than the second preset frequency, and the second preset frequency is greater than the third preset frequency.

[0065] In some embodiments, Figure 5 The acquisition frequency module 503 is specifically configured to, after determining whether the image contains a side vehicle, adjust the image acquisition frequency to a fourth preset frequency when there is no side vehicle in the image, wherein the fourth preset frequency is less than the third preset frequency.

[0066] In some embodiments, Figure 5 The image display module 505 is specifically configured to display part of the images in the image sequence at intervals when there is a side vehicle in the image; and to display each image in the image sequence in sequence when there is no side vehicle in the image.

[0067] In some embodiments, the rearview mirror emergency display device based on electronic equipment further includes:

[0068] The position change module 506 is configured to, after receiving an image sequence sent by the electronic device, identify the relative position of the electronic device and the vehicle in the image where the image sequence is located; compare the relative position corresponding to the currently received image sequence with the relative position corresponding to the last received image sequence in turn to determine whether the relative position of the electronic device and the vehicle has changed; if changed, issue a prompt message.

[0069] In some embodiments, the image sequence includes the time each image was taken;

[0070] The image display module 505 in the figure is specifically configured to calculate the time difference between the display time and the shooting time of the displayed image based on the display time of the image in the image sequence on the central control screen of the vehicle; when displaying the image in the image sequence on the central control screen of the vehicle, the time difference is displayed synchronously.

[0071] In some embodiments, the electronic device includes a mobile phone, a smart wearable device, or a video shooting device.

[0072] It should be understood that the size of the serial numbers of the steps in the above embodiments does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0073] Also, see Figure 6 The present application also provides a car 6, which includes at least a body computer 61 and a central control screen 62, wherein the central control screen 62 is connected to the body computer 61.

[0074] Specifically, Figure 6 As shown, the vehicle body computer 61 includes: a processor 611, a memory 612, and a computer program 613 stored in the memory 612 and executable on the processor 611. When the processor 611 executes the computer program 613, the steps in the above-mentioned method embodiments are implemented. Alternatively, when the processor 611 executes the computer program 613, the functions of the modules in the above-mentioned device embodiments are implemented.

[0075] The vehicle body computer 61 may be an electronic device such as a vehicle-mounted computer or a vehicle-mounted host. The vehicle body computer 61 may include but is not limited to a processor 611 and a memory 612. Those skilled in the art will appreciate that Figure 6 The vehicle body computer 61 is merely an example and does not limit the vehicle body computer 61 , and may include more or less components than those shown in the figure, or different components.

[0076] The processor 611 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.

[0077] The memory 612 may be an internal storage unit of the vehicle body computer 61, for example, a hard disk or memory of the vehicle body computer 61. The memory 612 may also be an external storage device of the vehicle body computer 61, for example, a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card (FlashCard), etc. equipped on the vehicle body computer 61. The memory 612 may also include both an internal storage unit of the vehicle body computer 61 and an external storage device. The memory 612 is used to store computer programs and other programs and data required by the vehicle body computer.

[0078] The central control screen 62 can be a touch screen or a non-touch screen. After the vehicle body computer 61 receives the image sequence, it can transcode the image sequence and convert it into an image or video that can be displayed on the central control screen 62. Alternatively, the image sequence can be directly forwarded to the central control screen 62, which caches and converts the image sequence before displaying it. It is understandable that the central control screen 62 here has a certain image processing capability, that is, the central control screen 62 includes but is not limited to a graphics processor and a controller.

[0079] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional modules in the embodiment can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The above-mentioned integrated unit can be implemented in the form of hardware or in the form of software functional units.

[0080] If the integrated module is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the present application implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. The computer program may include computer program code, and the computer program code may be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, the computer-readable medium does not include electric carrier signals and telecommunication signals.

[0081] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. An emergency display method for a rearview mirror based on an electronic device, characterized in that, it includes: When a vehicle establishes a communication connection with an electronic device, sending an image acquisition instruction to the electronic device, where the image acquisition instruction includes an image acquisition frequency; Receiving an image sequence obtained by the electronic device controlling a camera to take pictures in response to the image acquisition instruction, where the image sequence includes at least one image; Determining a new image acquisition frequency based on the vehicle condition information in the image sequence; Updating and resending the image acquisition instruction based on the new image acquisition frequency; Displaying at least one image in the image sequence on the central control screen of the vehicle.

2. The method according to claim 1, characterized in that, Determining a new image acquisition frequency based on the vehicle condition information in the image sequence includes: Identifying at least one image in the image sequence to determine whether there is a vehicle on the side; When there is a vehicle on the side in the image, identifying the number of vehicles on the side in the image and the distance between each vehicle on the side and the vehicle itself; Generating a corresponding image acquisition frequency based on the number of vehicles on the side and the distance between the vehicles on the side and the vehicle itself.

3. The method according to claim 2, characterized in that, Generating a corresponding image acquisition frequency based on the number of vehicles on the side and the distance between the vehicles on the side and the vehicle itself includes: Judging whether the distance between the vehicle on the side and the vehicle itself is less than or equal to a preset distance threshold; If so, adjusting the image acquisition frequency to a first preset frequency; If not, then judging whether the number of vehicles on the side is greater than or equal to a preset number threshold; When the number of vehicles on the side is greater than or equal to the preset number threshold, adjusting the image acquisition frequency to a second preset frequency; When the number of vehicles on the side is less than the preset number threshold, adjusting the image acquisition frequency to a third preset frequency; Wherein, the first preset frequency is greater than the second preset frequency, and the second preset frequency is greater than the third preset frequency.

4. The method according to claim 2, characterized in that, After determining whether there is a vehicle on the side in the image, it further includes: When there is no vehicle on the side in the image, adjusting the image acquisition frequency to a fourth preset frequency, where the fourth preset frequency is less than the third preset frequency.

5. The method according to claim 4, characterized in that, Displaying at least one image in the image sequence on the central control screen of the vehicle includes: When there is a vehicle on the side in the image, displaying some images in the image sequence at intervals; When there is no vehicle on the side in the image, displaying each image in the image sequence in sequence.

6. The method according to claim 1, characterized in that, it further includes: When receiving the image sequence sent by the electronic device, identifying the relative position between the electronic device and the vehicle itself in the image where the image sequence is located; Comparing the relative position corresponding to the currently received image sequence with the relative position corresponding to the previous received image sequence in sequence to determine whether the relative position between the electronic device and the vehicle itself has changed; If it has changed, then sending a prompt message.

7. The method according to any one of claims 1-6, characterized in that, the image sequence includes the shooting time of each picture; Display at least one image in the image sequence on the center control screen of the vehicle, including: Based on the display time of the images in the image sequence on the center control screen of the vehicle, calculate the time difference between the display time and the shooting time of the displayed images; When displaying the images in the image sequence on the center control screen of the vehicle, synchronously display the time difference.

8. The method according to any one of claims 1-6, wherein, the electronic device includes a video shooting device.

9. A rearview mirror emergency display device based on an electronic device, wherein, it includes: An instruction sending module, configured to send an image acquisition instruction to the electronic device when a communication connection is established between the vehicle and the electronic device, and the image acquisition instruction includes an image acquisition frequency; An image receiving module, configured to receive an image sequence obtained by the electronic device controlling a camera to take pictures in response to the image acquisition instruction, and the image sequence includes at least one image; An acquisition frequency module, configured to determine a new image acquisition frequency based on the vehicle condition information in the image sequence; An instruction update module, configured to update and re-send the image acquisition instruction based on the new image acquisition frequency; An image display module, configured to display at least one image in the image sequence on the center control screen of the vehicle.

10. A vehicle, at least including a body computer and a center control screen, the body computer includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein, when the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

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