Exterior rearview mirror field of view calibration method, device, equipment and storage medium

Abstract

The present application discloses a method, device, equipment and storage medium for calibrating the field of view of an exterior rearview mirror, relates to the field of vehicle technology, and discloses a method for calibrating the field of view of an exterior rearview mirror, comprising: adjusting the position of the exterior rearview mirror to obtain the initial position of the lens, collecting vehicle driving condition information, and determining a target adjustment angle based on the initial position of the lens and the vehicle driving condition information; when the target adjustment angle is greater than a preset adjustment angle, returning to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens; when the target adjustment angle is less than or equal to the preset adjustment angle, outputting the target adjustment angle, so that the adjustment range of the exterior rearview mirror lens can cover the driver's driving field of view requirements under different vehicle driving conditions.

Description

Technical Field

[0001] The present application relates to the field of vehicle technology, and in particular to a method, device, equipment and storage medium for calibrating the field of view of an exterior rearview mirror. Background Art

[0002] The existing exterior rearview mirror calibration method only calibrates the regulatory field of view of the exterior rearview mirror. Since the regulatory field of view is not the driving field of view during driving, the exterior rearview mirror that meets the regulatory field of view may not be suitable for the driving field of view of different vehicle driving conditions during actual use. There is a problem that the adjustment range of the exterior rearview mirror lens cannot cover the driving field of view requirements of all people during driving and reversing.

[0003] The above content is only used to assist in understanding the technical solution of this application and does not constitute an admission that the above content is prior art. Summary of the Invention

[0004] The main purpose of this application is to provide a method for calibrating the field of view of an exterior rearview mirror, aiming to solve the technical problem of how to make the adjustment range of the exterior rearview mirror lens cover the driver's driving field of view requirements under different vehicle driving conditions.

[0005] To achieve the above objectives, the present application proposes a method for calibrating the field of view of an exterior rearview mirror, the method comprising:

[0006] Adjust the position of the exterior rearview mirror to obtain the initial position of the lens;

[0007] Collecting vehicle driving condition information, and determining a target adjustment angle based on the lens initial position and the vehicle driving condition information;

[0008] When the target adjustment angle is greater than the preset adjustment angle, returning to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens;

[0009] When the target adjustment angle is less than or equal to the preset adjustment angle, the target adjustment angle is output.

[0010] In one embodiment, the step of determining a target adjustment angle based on the lens initial position and the vehicle driving condition information includes:

[0011] Determining a target visual field area based on the vehicle driving condition information, wherein the target visual field area is at least two;

[0012] collecting eye point information, and determining a driver's field of view based on the eye point information;

[0013] evaluating the compliance of the operating condition vision based on the target vision area and the driver's vision area to obtain a vision compliance evaluation result;

[0014] The target adjustment angle is determined based on the initial position of the lens and the visual field conformity evaluation result.

[0015] In one embodiment, the step of determining the target visual field area based on the vehicle driving condition information includes:

[0016] Acquiring driving condition information and reversing condition information based on the vehicle driving condition information;

[0017] determining a first visual field area based on the driving condition information;

[0018] determining a second visual field area based on the reversing operating condition information;

[0019] The first visual field area and the second visual field area are used as target visual field areas.

[0020] In one embodiment, the step of collecting eyepoint information and determining the driver's field of view based on the eyepoint information includes:

[0021] determining the driver's left rearview mirror field of view based on the eye point information;

[0022] determining the driver's right rearview mirror field of view based on the eye point information;

[0023] The driver's field of view area is determined based on the driver's left rearview mirror field of view and the driver's right rearview mirror field of view.

[0024] In one embodiment, the step of determining the target adjustment angle based on the initial position of the lens and the visual field conformity evaluation result includes:

[0025] When the field of view compliance evaluation result does not meet the preset requirements, adjusting the position of the exterior rearview mirror, returning to the operation of collecting the eye point information, and determining the driver's field of view area based on the eye point information;

[0026] When the visual field conformity evaluation result satisfies the preset requirement, the current position of the lens is acquired, and the target adjustment angle is determined based on the initial position of the lens and the current position of the lens.

[0027] In one embodiment, the step of determining the target adjustment angle based on the initial position of the lens and the current position of the lens includes:

[0028] Determining an adjustment angle of a left rearview mirror and an adjustment angle of a right rearview mirror based on the initial position of the lens and the current position of the lens;

[0029] When the left rearview mirror adjustment angle is greater than or equal to the right rearview mirror adjustment angle, the left rearview mirror adjustment angle is used as the target adjustment angle;

[0030] When the adjustment angle of the left rearview mirror is smaller than the adjustment angle of the right rearview mirror, the adjustment angle of the right rearview mirror is used as the target adjustment angle.

[0031] In one embodiment, before the step of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens, the following steps are included:

[0032] Build a vehicle model based on vehicle parameter information;

[0033] An exterior rearview mirror model is constructed based on the lens parameter information and the vehicle model, and the exterior rearview mirror model is used to adjust the position of the exterior rearview mirror.

[0034] In addition, to achieve the above-mentioned purpose, the present application also proposes a device for verifying the field of view of an exterior rearview mirror, the device comprising:

[0035] An adjustment module is used to adjust the position of the exterior rearview mirror to obtain the initial position of the lens;

[0036] an acquisition module, configured to acquire vehicle driving condition information and determine a target adjustment angle based on the lens initial position and the vehicle driving condition information;

[0037] An updating module, configured to return to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens when the target adjustment angle is greater than the preset adjustment angle;

[0038] A determination module is configured to output the target adjustment angle when the target adjustment angle is less than or equal to the preset adjustment angle.

[0039] In addition, to achieve the above-mentioned purpose, the present application also proposes a device for calibrating the field of view of an exterior rearview mirror, which includes: a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the computer program is configured to implement the steps of the method for calibrating the field of view of an exterior rearview mirror as described above.

[0040] In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, which is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by the processor, the steps of the exterior rearview mirror field of view calibration method as described above are implemented.

[0041] In addition, to achieve the above-mentioned purpose, the present application also provides a computer program product, which includes a computer program, and when the computer program is executed by a processor, it implements the steps of the exterior rearview mirror field of view calibration method as described above.

[0042] One or more technical solutions proposed in this application have at least the following technical effects:

[0043] By adjusting the position of the exterior rearview mirror, the initial position of the lens is obtained, the vehicle driving condition information is collected, and the target adjustment angle is determined based on the initial position of the lens and the vehicle driving condition information. When the target adjustment angle is greater than the preset adjustment angle, the operation of adjusting the position of the exterior rearview mirror is returned to obtain the initial position of the lens. When the target adjustment angle is less than or equal to the preset adjustment angle, the target adjustment angle is output. Through comprehensive analysis of usage conditions, the applicability of the exterior rearview mirror design field of view is improved, the space occupied by the internal structure of the exterior rearview mirror is reduced in structure, the adjustment time of the exterior rearview mirror lens is reduced in design, and the additional costs caused by market complaints and rectification are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0045] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0046] Figure 1 A flowchart of the first embodiment of the exterior rearview mirror field of view calibration method of the present application is provided;

[0047] Figure 2 A schematic diagram of a first field of view area provided in Example 1 of the exterior rearview mirror field of view calibration method of the present application;

[0048] Figure 3 A schematic diagram of a second field of view area provided in Example 1 of the exterior rearview mirror field of view calibration method of the present application;

[0049] Figure 4 A schematic diagram of a driving field of view that meets the first field of view area provided in Example 1 of the exterior rearview mirror field of view calibration method of this application;

[0050] Figure 5 A schematic diagram of the driving field of view that meets the second field of view area provided in Example 1 of the exterior rearview mirror field of view calibration method of this application;

[0051] Figure 6 A flow chart illustrating a second embodiment of the method for calibrating the field of view of an exterior rearview mirror of the present application;

[0052] Figure 7 A schematic diagram of a simplified flow chart of a method for calibrating the field of view of an exterior rearview mirror provided in Example 2 of the present application;

[0053] Figure 8This is a schematic diagram of the module structure of the rearview mirror field of view calibration device according to an embodiment of the present application;

[0054] Figure 9 Schematic diagram of the device structure of the hardware operating environment involved in the interior and exterior rearview mirror field of view calibration method in the embodiment of the present application.

[0055] The purpose, features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0056] It should be understood that the specific embodiments described herein are merely used to explain the technical solutions of the present application and are not intended to limit the present application.

[0057] In order to better understand the technical solution of the present application, a detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0058] The present invention provides a method for checking the field of view of an exterior rearview mirror. Figure 1 , Figure 1 This is a flow chart of the first embodiment of the exterior rearview mirror field of view calibration method of the present application.

[0059] In this embodiment, the exterior rearview mirror field of view calibration method includes steps S10 to S40:

[0060] Step S10, adjusting the position of the exterior rearview mirror to obtain the initial position of the lens;

[0061] It should be understood that when adjusting the position of the exterior rearview mirror, factors such as the vehicle's exterior and structural limitations, such as doors, windows, and body lines, should be considered to ensure the mirror's field of view is not obstructed by these components. Furthermore, the initial position of the mirror must meet regulatory standards. For example, according to GB 15084-2022, the driver should be able to observe through the exterior rearview mirror an area from 20 meters behind the driver's eye point to the horizon, with a width of at least 4 meters. The area starting from 4 meters behind the driver's eye point must be at least 1 meter wide.

[0062] Step S20, collecting vehicle driving condition information, and determining a target adjustment angle based on the lens initial position and the vehicle driving condition information;

[0063] It should be noted that before determining the target adjustment angle, the vehicle's operating condition information under different road types and driving conditions can be collected. The position of the exterior mirrors can be adjusted based on the driver's field of view requirements under different vehicle driving conditions. The angle of rotation of the exterior mirror lens relative to the initial position during this process can be recorded, and the target adjustment angle can be determined from the recorded angles. This target adjustment angle should be able to adapt to the driver's field of view requirements under different driving conditions, ensuring that the driver can be provided with a clear, unobstructed side and rear view under various driving conditions, thereby improving driving safety and comfort.

[0064] In this embodiment, the step of determining the target adjustment angle based on the lens initial position and the vehicle driving condition information in step S20 includes steps S21 to S24:

[0065] Step S21, determining a target visual field area based on the vehicle driving condition information, wherein the target visual field area is at least two;

[0066] It should be understood that different driving conditions require different driving vision, and corresponding target vision areas can be drawn based on these different driving vision requirements. For example, when driving on urban roads, the target vision area should have a wide peripheral field of view to observe vehicles in adjacent lanes, pedestrians, and frequent traffic signal changes; when driving on highways, the target vision area should have a longer depth of field of view to promptly monitor vehicles behind. For different driving conditions, for example, the target vision area when driving should ensure that approximately one-quarter of the vehicle's rear can be seen to promptly observe overtaking and merging situations; and when reversing, the target vision area should ensure a clear view of the ground and obstacles to the side and rear.

[0067] In a feasible implementation manner, the step of determining the target visual field area based on the vehicle driving condition information in step S21 includes steps A11 to A14:

[0068] Step A11, acquiring driving condition information and reversing condition information based on the vehicle driving condition information;

[0069] It should be noted that driving condition information includes the required field of view for the exterior mirrors during driving, while reversing condition information includes the required field of view for the exterior mirrors during reversing. The left-side mirror's driving adjustment standard is: the horizontal line must be positioned at the mirror's centerline, with the vehicle's edge occupying 1 / 4 of the mirror image. The right-side mirror's driving adjustment standard is: the horizontal line must be positioned 2 / 3 of the mirror, with the vehicle's edge occupying 1 / 4 of the mirror image. The reversing adjustment standard for both exterior mirrors is: the rear door handle, rear wheel hub, and the ground below are visible on the exterior mirror side.

[0070] Step A12, determining a first visual field area based on the driving condition information;

[0071] Specifically, if Figure 2 As shown, Figure 2 The target visual field area to meet the driving vision requirements is the first visual field area. In the first visual field area, the straight line 100 meters behind the left and right eye points is regarded as the infinite ground line and the vehicle outline boundary behind the exterior rearview mirror are all within the visual range.

[0072] Step A13: determining a second visual field area based on the reversing operating condition information;

[0073] Specifically, if Figure 3 As shown, Figure 3 The first visual area is the target visual area that meets the reversing vision requirement. In the second visual area, the rear wheel center, the ground, and the rear door handle boundary are all within the visual range.

[0074] Step A14: taking the first visual field area and the second visual field area as target visual field areas.

[0075] It should be understood that the first field of view area and the second field of view area can be determined respectively according to driving needs and reversing needs. The first field of view area and the second field of view area are both field of view areas that can be met after fine-tuning the angle of the exterior rearview mirror lens during actual driving.

[0076] Step S22, collecting eye point information, and determining the driver's field of view based on the eye point information;

[0077] In a feasible embodiment, the step of collecting eye point information in step S22 and determining the driver's field of view area based on the eye point information includes: determining the driver's left rearview mirror field of view based on the eye point information; determining the driver's right rearview mirror field of view based on the eye point information; and determining the driver's field of view area based on the driver's left rearview mirror field of view and the driver's right rearview mirror field of view.

[0078] Specifically, the left and right eye points can be used as light sources. First, the visual range of the left and right eye points after the light is reflected by the left exterior rearview mirror is made as the driver's left rearview mirror field of view, and then the visual range of the left and right eye points after the light is reflected by the right exterior rearview mirror is made as the driver's right rearview mirror field of view. The driver's left rearview mirror field of view and the driver's right rearview mirror field of view are taken as the driver's field of view area.

[0079] Step S23, evaluating the working condition vision compliance based on the target vision area and the driver vision area to obtain a vision compliance evaluation result;

[0080] It should be understood that for multiple target viewing areas, each target viewing area will be evaluated for compliance with the driver's viewing area. When the driver's viewing area complies with the target viewing area, the angle by which the exterior rearview mirror has rotated relative to its initial position is recorded. When the driver's viewing area does not comply with the target viewing area, the position of the exterior rearview mirror lens is adjusted.

[0081] Step S24: determining the target adjustment angle based on the initial position of the lens and the visual field conformity evaluation result.

[0082] In a feasible implementation manner, the step of determining the target adjustment angle based on the initial position of the lens and the visual field conformity evaluation result in step S24 includes steps A31 to A32:

[0083] Step A31: When the field of view conformity assessment result does not meet the preset requirement, adjusting the position of the exterior rearview mirror, returning to the process of collecting eyepoint information, and determining the driver's field of view area based on the eyepoint information;

[0084] It should be understood that when the field of vision compliance assessment result does not meet the preset requirements, that is, the driver's field of vision area does not meet the target field of vision area, it is necessary to adjust the position of the exterior rearview mirror, and redetermine the field of vision range of the light emitted from the left and right eye points after reflection from the left and right exterior rearview mirror surfaces based on the adjusted position of the exterior rearview mirror, and take the union of the lines of sight as the updated driver's field of vision area.

[0085] Step A32: When the visual field conformity evaluation result satisfies the preset requirement, the current position of the lens is obtained, and the target adjustment angle is determined based on the initial position of the lens and the current position of the lens.

[0086] It should be understood that when the field of view compliance assessment result meets the preset requirements, that is, the driver's field of view area meets the target field of view area, it is necessary to record the angle by which the exterior rearview mirror is rotated compared to the initial position of the lens at this time, and take the maximum rotation angle as the target adjustment angle.

[0087] Specifically, the operation of determining the target adjustment angle based on the initial position of the lens and the driving condition information can be: adjusting the angles in the X, Y, and Z directions at the rotation center of the exterior rearview mirror lens, such as Figure 4 As shown, until the ground line in the first field of view is completely contained in the left center line of the driver's field of view, and the body boundary is located in the driver's field of view area close to the 1 / 4 side of the body, the adjustment angles of the X, Y, and Z directions of the left and right exterior rearview mirror lenses are recorded at this time. The right side is similar.

[0088] The operation of determining the target adjustment angle based on the initial position of the lens and the reversing working condition information can be: adjusting the angles in the X, Y, and Z directions of the rotation center of the exterior rearview mirror lens, such as Figure 5 As shown, until the wheel center, the ground, and the rear door handle in the second field of view appear in the driver's field of view, the adjustment angles of the left and right exterior rearview mirror lenses in the X, Y, and Z directions are recorded. The right side is similar.

[0089] Furthermore, the step of determining the target adjustment angle based on the initial position of the lens and the current position of the lens includes: determining the left rearview mirror adjustment angle and the right rearview mirror adjustment angle based on the initial position of the lens and the current position of the lens; when the left rearview mirror adjustment angle is greater than or equal to the right rearview mirror adjustment angle, using the left rearview mirror adjustment angle as the target adjustment angle; when the left rearview mirror adjustment angle is less than the right rearview mirror adjustment angle, using the right rearview mirror adjustment angle as the target adjustment angle.

[0090] It should be understood that when the positions of the left and right exterior rearview mirrors are adjusted to meet the preset requirements of the driving conditions, the rotation angles of the left and right exterior rearview mirrors are often not consistent. Based on structural cost considerations, the adjustment angles of the left and right exterior rearview mirrors are generally designed to be consistent, that is, the larger adjustment angle in the X, Y, and Z directions is taken as the target adjustment angle.

[0091] Step S30, when the target adjustment angle is greater than the preset adjustment angle, returning to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens;

[0092] It should be understood that the preset adjustment angle α t ° is set according to the design requirements of the vehicle. When the target adjustment angle is greater than the preset adjustment angle α t °, it means that the lens has redundant adjustment range, which will affect the external dimensions, aesthetics and wind resistance of the exterior rearview mirror during driving.

[0093] Step S40: When the target adjustment angle is less than or equal to the preset adjustment angle, output the target adjustment angle.

[0094] It should be understood that when the target adjustment angle is less than or equal to the preset adjustment angle α t °, it means that the target adjustment angle at this time not only meets the regulatory requirements and meets the exterior rearview mirror field of view needs under different driving conditions, but also enables the exterior rearview mirror designed based on the target adjustment angle to meet the aesthetic requirements while occupying less internal structure space of the exterior rearview mirror, thereby reducing the adjustment time of the exterior rearview mirror lens.

[0095] In this embodiment, the position of the exterior rearview mirror is adjusted to obtain the initial position of the lens, and the vehicle driving condition information is collected. The target adjustment angle is determined based on the initial position of the lens and the vehicle driving condition information. When the target adjustment angle is greater than the preset adjustment angle, the operation of adjusting the position of the exterior rearview mirror is returned to obtain the initial position of the lens. When the target adjustment angle is less than or equal to the preset adjustment angle, the target adjustment angle is output. Through comprehensive analysis of usage conditions, the applicability of the design field of view of the exterior rearview mirror is improved, the space occupied by the internal structure of the exterior rearview mirror is structurally reduced, the adjustment time of the exterior rearview mirror lens is reduced in design, and the additional costs caused by market complaints and rectification are reduced.

[0096] Based on the first embodiment of the present application, in the second embodiment of the present application, the same or similar contents as those in the above embodiment 1 can be referred to the above introduction and will not be described in detail later. Figure 6 Before step S10, the exterior rearview mirror field of view calibration method further includes steps S01 to S02:

[0097] Step S01, building a vehicle model based on vehicle parameter information;

[0098] It should be noted that determining the target adjustment angle of the exterior mirror, determining the target field of view, determining the driver's field of view, and adjusting the exterior mirror are all based on a pre-built vehicle model. Building the vehicle model requires collecting vehicle-related data such as the vehicle's outline and dimensions, ground lines, and eyepoint information.

[0099] Step S02: Building an exterior rearview mirror model based on the lens parameter information and the vehicle model, wherein the exterior rearview mirror model is used to adjust the position of the exterior rearview mirror.

[0100] It should be understood that after building the vehicle model, it is necessary to build a exterior rearview mirror model based on the vehicle model to better record the adjustment angles in the X, Y, and Z directions during the process of adjusting the position of the exterior rearview mirror.

[0101] For example, in order to help understand the implementation process of the exterior rearview mirror field of view calibration method obtained by combining this embodiment with the above embodiment 1, please refer to Figure 7 , Figure 7 A brief flowchart of a method for calibrating the field of view of an exterior rearview mirror is provided. Specifically:

[0102] Obtain vehicle-related data, ground lines, eye point information, lens information, etc., and build a vehicle model and exterior rearview mirror model; based on the built exterior rearview mirror model, arrange the initial position of the exterior rearview mirror according to regulatory requirements and other layout constraints; determine the first field of view area, the second field of view area and the driver's field of view area based on the above information; adjust the angles of the left and right exterior rearview mirrors respectively so that the first field of view area and the second field of view area are respectively presented in the driver's field of view as required, and record the adjustment angles of the left and right exterior rearview mirrors at this time; take the maximum adjustment angle as the target adjustment angle; when the target adjustment angle is not less than the preset adjustment angle α t °, return to the operation of arranging the exterior rearview mirror to its initial position according to regulatory requirements and other layout constraints; when the target adjustment angle is less than the preset adjustment angle α t °, the target adjustment angle is output as the exterior rearview mirror adjustment angle that meets human and machine needs.

[0103] In this embodiment, a vehicle model is built based on vehicle parameter information; a side mirror model is built based on lens parameter information and the vehicle model. The side mirror model is used to adjust the position of the side mirror. Through visual simulation and optimization, the driver's side mirror field of view under different driving conditions is simulated, and then the side mirror angle adjustment range that ensures the driver can obtain the best field of view is determined, which helps to speed up the product development cycle and reduce development costs.

[0104] It should be noted that the above examples are only used to understand the present application and do not constitute a limitation on the exterior rearview mirror field of view calibration method of the present application. More simple transformations based on this technical concept are all within the scope of protection of the present application.

[0105] This application also provides a device for checking the field of view of an exterior rearview mirror, please refer to Figure 8 , the exterior rearview mirror field of view calibration device includes:

[0106] An adjustment module 10 is used to adjust the position of the exterior rearview mirror to obtain the initial position of the lens;

[0107] An acquisition module 20 is configured to acquire vehicle driving condition information and determine a target adjustment angle based on the lens initial position and the vehicle driving condition information;

[0108] An updating module 30 is configured to return to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens when the target adjustment angle is greater than the preset adjustment angle;

[0109] The determination module 40 is configured to output the target adjustment angle when the target adjustment angle is less than or equal to the preset adjustment angle.

[0110] The exterior rearview mirror field of view calibration device provided in this application utilizes the exterior rearview mirror field of view calibration method described in the aforementioned embodiment, addressing the technical problem of ensuring that the adjustment range of the exterior rearview mirror lens covers the driver's required field of view under various driving conditions. Compared to the prior art, the exterior rearview mirror field of view calibration device provided in this application achieves the same beneficial effects as the exterior rearview mirror field of view calibration method described in the aforementioned embodiment. Other technical features of the exterior rearview mirror field of view calibration device are the same as those disclosed in the aforementioned embodiment and are not further elaborated here.

[0111] The present application provides an exterior rearview mirror field of view calibration device, which includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the exterior rearview mirror field of view calibration method in the above-mentioned embodiment one.

[0112] Reference below Figure 9 , which shows a schematic structural diagram of an exterior rearview mirror field of view calibration device suitable for implementing an embodiment of the present application. The exterior rearview mirror field of view calibration device in the embodiment of the present application may include, but is not limited to, mobile terminals such as mobile phones, laptop computers, digital broadcast receivers, PDAs (Personal Digital Assistants), PADs (Portable Application Descriptions), PMPs (Portable Media Players), in-vehicle terminals (e.g., in-vehicle navigation terminals), and fixed terminals such as digital TVs and desktop computers. Figure 5 The exterior rearview mirror field of view calibration device shown is merely an example and should not impose any limitations on the functions and scope of use of the embodiments of the present application.

[0113] like Figure 9As shown, the exterior rearview mirror field of view calibration device may include a processing device 1001 (e.g., a central processing unit, a graphics processing unit, etc.), which can perform various appropriate actions and processes based on programs stored in a read-only memory (ROM) 1002 or programs loaded from a storage device 1003 into a random access memory (RAM) 1004. RAM 1004 also stores various programs and data required for the operation of the exterior rearview mirror field of view calibration device. Processing device 1001, ROM 1002, and RAM 1004 are interconnected via a bus 1005. An input / output (I / O) interface 1006 is also connected to the bus. Typically, the following systems can be connected to I / O interface 1006: input device 1007 including, for example, a touch screen, touchpad, keyboard, mouse, image sensor, microphone, accelerometer, gyroscope, etc.; output device 1008 including, for example, a liquid crystal display (LCD), speaker, vibrator, etc.; storage device 1003 including, for example, a magnetic tape, hard disk, etc.; and communication device 1009. Communication device 1009 can allow the exterior rearview mirror field of view calibration device to communicate with other devices wirelessly or by wire to exchange data. Although the figure shows an exterior rearview mirror field of view calibration device with various systems, it should be understood that implementation or presence of all the illustrated systems is not required. More or fewer systems may alternatively be implemented or present.

[0114] In particular, according to the embodiments disclosed in the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, the embodiments disclosed in the present application include a computer program product comprising a computer program carried on a computer-readable medium, the computer program comprising program code for executing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from a network via a communication device, or installed from a storage device 1003, or installed from a ROM 1002. When the computer program is executed by the processing device 1001, the above-mentioned functions defined in the method of the embodiment disclosed in the present application are executed.

[0115] The exterior rearview mirror field of view calibration device provided in this application utilizes the exterior rearview mirror field of view calibration method described in the aforementioned embodiment, solving the technical problem of ensuring that the adjustment range of the exterior rearview mirror lens covers the driver's required field of view under different driving conditions. Compared to the prior art, the exterior rearview mirror field of view calibration device provided in this application achieves the same beneficial effects as the exterior rearview mirror field of view calibration method described in the aforementioned embodiment. Other technical features of this exterior rearview mirror field of view calibration device are the same as those disclosed in the aforementioned embodiment and are not further elaborated here.

[0116] It should be understood that the various parts disclosed in this application can be implemented using hardware, software, firmware, or a combination thereof. In the description of the above embodiments, specific features, structures, materials, or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0117] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

[0118] The present application provides a computer-readable storage medium having computer-readable program instructions (ie, a computer program) stored thereon, wherein the computer-readable program instructions are used to execute the exterior rearview mirror field of view calibration method in the above-mentioned embodiment.

[0119] The computer-readable storage medium provided in this application may be, for example, a USB flash drive, but is not limited to electrical, magnetic, optical, electromagnetic, infrared, or semiconductor systems, systems or devices, or any combination thereof. More specific examples of computer-readable storage media may include, but are not limited to: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this embodiment, the computer-readable storage medium may be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, system or device. The program code contained on the computer-readable storage medium may be transmitted using any appropriate medium, including but not limited to: wires, optical cables, RF (Radio Frequency), etc., or any suitable combination thereof.

[0120] The computer-readable storage medium may be included in the exterior rearview mirror field of view calibration device; or may exist independently without being assembled into the exterior rearview mirror field of view calibration device.

[0121] The above-mentioned computer-readable storage medium carries one or more programs. When the above-mentioned one or more programs are executed by the exterior rearview mirror field of view calibration device, the exterior rearview mirror field of view calibration device enables the following operations: adjusting the position of the exterior rearview mirror to obtain the initial position of the lens; collecting vehicle driving condition information, and determining the target adjustment angle based on the initial position of the lens and the vehicle driving condition information; when the target adjustment angle is greater than the preset adjustment angle, returning to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens; and when the target adjustment angle is less than or equal to the preset adjustment angle, outputting the target adjustment angle.

[0122] Computer program code for performing the operations of the present application may be written in one or more programming languages, or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a stand-alone software package, partially on the user's computer and partially on a remote computer, or entirely on the remote computer or server. In cases involving a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., through the Internet using an Internet service provider).

[0123] The flow charts and block diagrams in the accompanying drawings illustrate the possible architecture, functions and operations of the systems, methods and computer program products according to various embodiments of the present application. In this regard, each box in the flow chart or block diagram can represent a module, program segment or a part of code, and the module, program segment or a part of code contains one or more executable instructions for realizing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the box can also occur in a different order than that marked in the accompanying drawings. For example, two boxes represented in succession can actually be executed substantially in parallel, and they can sometimes be executed in the opposite order, depending on the functions involved. It should also be noted that each box in the block diagram and / or flow chart, and the combination of the boxes in the block diagram and / or flow chart can be implemented by a dedicated hardware-based system that performs the specified function or operation, or can be implemented by a combination of dedicated hardware and computer instructions.

[0124] The modules described in the embodiments of the present application may be implemented in software or hardware, wherein the name of a module does not necessarily limit the unit itself.

[0125] The computer-readable storage medium provided in this application stores computer-readable program instructions (i.e., a computer program) for executing the aforementioned exterior rearview mirror field of view calibration method. This computer-readable storage medium addresses the technical problem of ensuring that the adjustment range of exterior rearview mirror lenses covers the driver's required field of view under different vehicle driving conditions. Compared to the prior art, the beneficial effects of the computer-readable storage medium provided in this application are similar to those of the exterior rearview mirror field of view calibration method provided in the aforementioned embodiment, and are not further elaborated here.

[0126] The present application also provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the above-mentioned exterior rearview mirror field of view calibration method.

[0127] The computer program product provided in this application solves the technical problem of ensuring that the adjustment range of exterior rearview mirror lenses covers the driver's required field of view under different driving conditions. Compared to the prior art, the beneficial effects of the computer program product provided in this application are similar to those of the exterior rearview mirror field of view calibration method provided in the aforementioned embodiment, and are not further elaborated here.

[0128] The above description is only part of the embodiments of the present application and does not limit the patent scope of the present application. All equivalent structural transformations made by using the contents of the present application specification and drawings under the technical concept of the present application, or direct / indirect application in other related technical fields are included in the patent protection scope of the present application.

Claims

1. A method for calibrating the field of view of an exterior rearview mirror, characterized in that: The exterior rearview mirror field of view calibration method comprises: Adjust the position of the exterior rearview mirror to obtain the initial position of the lens; Collecting vehicle driving condition information, and determining a target adjustment angle based on the lens initial position and the vehicle driving condition information; When the target adjustment angle is greater than the preset adjustment angle, returning to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens; When the target adjustment angle is less than or equal to the preset adjustment angle, the target adjustment angle is output.

2. The exterior rearview mirror field of view calibration method according to claim 1, characterized in that: The step of determining a target adjustment angle based on the initial position of the lens and the vehicle driving condition information includes: Determining a target visual field area based on the vehicle driving condition information, wherein the target visual field area is at least two; collecting eye point information, and determining a driver's field of view based on the eye point information; evaluating the compliance of the operating condition vision based on the target vision area and the driver's vision area to obtain a vision compliance evaluation result; The target adjustment angle is determined based on the initial position of the lens and the visual field conformity evaluation result.

3. The method for calibrating the field of view of an exterior rearview mirror according to claim 2, wherein: The step of determining the target visual field area based on the vehicle driving condition information includes: Acquiring driving condition information and reversing condition information based on the vehicle driving condition information; determining a first visual field area based on the driving condition information; determining a second visual field area based on the reversing operating condition information; The first visual field area and the second visual field area are used as target visual field areas.

4. The method for calibrating the field of view of an exterior rearview mirror according to claim 2, wherein: The step of collecting eye point information and determining the driver's field of view based on the eye point information includes: determining the driver's left rearview mirror field of view based on the eye point information; determining the driver's right rearview mirror field of view based on the eye point information; The driver's field of view area is determined based on the driver's left rearview mirror field of view and the driver's right rearview mirror field of view.

5. The method for calibrating the field of view of an exterior rearview mirror according to claim 2, wherein: The step of determining the target adjustment angle based on the initial position of the lens and the visual field compliance evaluation result includes: When the field of view compliance evaluation result does not meet the preset requirements, adjusting the position of the exterior rearview mirror, returning to the operation of collecting the eye point information, and determining the driver's field of view area based on the eye point information; When the visual field conformity evaluation result satisfies the preset requirement, the current position of the lens is acquired, and the target adjustment angle is determined based on the initial position of the lens and the current position of the lens.

6. The method for calibrating the field of view of an exterior rearview mirror according to claim 5, wherein: The step of determining the target adjustment angle based on the initial position of the lens and the current position of the lens includes: Determining an adjustment angle of a left rearview mirror and an adjustment angle of a right rearview mirror based on the initial position of the lens and the current position of the lens; When the left rearview mirror adjustment angle is greater than or equal to the right rearview mirror adjustment angle, the left rearview mirror adjustment angle is used as the target adjustment angle; When the adjustment angle of the left rearview mirror is smaller than the adjustment angle of the right rearview mirror, the adjustment angle of the right rearview mirror is used as the target adjustment angle.

7. The exterior rearview mirror field of view calibration method according to claim 1, characterized in that: Before the step of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens, the method includes: Build a vehicle model based on vehicle parameter information; An exterior rearview mirror model is constructed based on the lens parameter information and the vehicle model, and the exterior rearview mirror model is used to adjust the position of the exterior rearview mirror.

8. A device for checking the field of view of an exterior rearview mirror, characterized in that: The device comprises: An adjustment module is used to adjust the position of the exterior rearview mirror to obtain the initial position of the lens; an acquisition module, configured to acquire vehicle driving condition information and determine a target adjustment angle based on the lens initial position and the vehicle driving condition information; An updating module, configured to return to the operation of adjusting the position of the exterior rearview mirror to obtain the initial position of the lens when the target adjustment angle is greater than a preset adjustment angle; A determination module is configured to output the target adjustment angle when the target adjustment angle is less than or equal to the preset adjustment angle.

9. An exterior rearview mirror field of view calibration device, characterized in that: The device includes: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the computer program is configured to implement the steps of the exterior rearview mirror field of view calibration method according to any one of claims 1 to 7.

10. A storage medium, characterized in that: The storage medium is a computer-readable storage medium, and a computer program is stored on the storage medium. When the computer program is executed by a processor, the steps of the exterior rearview mirror field of view calibration method according to any one of claims 1 to 7 are implemented.

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