Steering wheel positioning sleeve central point spring boundary distance detection method and computer device

Abstract

The invention discloses a steering wheel positioning sleeve center point spring boundary spacing detection method and a computer device, and the method comprises the steps: carrying out the exposure through a first light source located above a steering wheel positioning sleeve, and obtaining a first image between the steering wheel positioning sleeve and a spring through an image obtaining device installed above the steering wheel positioning sleeve; analyzing the first image to determine the circle center of the steering wheel positioning sleeve in the first image and the side boundary of the part, not shielded by the steering wheel positioning sleeve, of the spring; exposure is conducted through a second light source located below the spring, and a second image between the steering wheel positioning sleeve and the spring is obtained through an image obtaining device installed above the steering wheel positioning sleeve; fitting the steering wheel positioning sleeve and / or the spring in the first image and the second image so as to fit a fitting side line of the part, shielded by the steering wheel positioning sleeve, of the spring in the first image; and calculating the distance between the fitting side line and the circle center of the steering wheel positioning sleeve in the first image, and recording the distance as the spring boundary distance of the center point of the steering wheel positioning sleeve.

Description

Technical Field

[0001] The invention relates to the field of methods for spacing steering wheel positions during steering wheel manufacturing, and in particular to a method for detecting the boundary spacing of springs at the center point of a steering wheel positioning sleeve and a computer device. Background Art

[0002] When manufacturing a steering wheel, it is usually necessary to install at least one spring below the steering wheel body, but the size of the reverse wheel of different vehicles and the requirements for the relative distance between the steering wheel body and the spring are different.

[0003] In the prior art, when detecting the distance between the center point of the steering wheel positioning sleeve and the boundary of the spring, multiple cameras are generally used for point correspondence, with multiple camera locations, or high-configuration cameras are used to support visual inspection of several points. Both methods are costly and expensive, inconvenient to operate, and production efficiency needs to be improved urgently.

[0004] More importantly, when taking pictures of the steering wheel and the spring through the camera, the steering wheel blocks the light. Therefore, when detecting the distance between the center point of the steering wheel positioning sleeve and the boundary of the spring, the existing technology usually takes a picture of the spring first, then pushes the steering wheel to the standard position by precise positioning, then takes a picture of the steering wheel, and finally calculates the distance between the center point of the steering wheel positioning sleeve and the boundary of the spring. However, there will always be errors when pushing the steering wheel to the standard position by precise positioning, and the calculation is also more complicated. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned prior art and provide a method for detecting the distance between the center point of the steering wheel locating sleeve and the boundary of the spring, and a computer device, which are easy to operate, have high production efficiency, and low cost, and the detection results are more accurate.

[0006] To this end, the present application provides a method for detecting the boundary spacing between the center point springs of a steering wheel locating sleeve, the method comprising:

[0007] Expose through a first light source located above the steering wheel positioning sleeve, and acquire a first image between the steering wheel positioning sleeve and the spring through an image acquisition device installed above the steering wheel positioning sleeve;

[0008] Analyze the first image to determine the center of the steering wheel locating sleeve and the edge of the portion of the spring not blocked by the steering wheel locating sleeve in the first image;

[0009] Expose through a second light source located below the spring, and acquire a second image between the steering wheel aligning sleeve and the spring through an image acquisition device installed above the steering wheel aligning sleeve;

[0010] Fitting the steering wheel positioning sleeve and / or the spring in the first image and the second image to fit the fitting edge line of the spring in the first image that is blocked by the steering wheel positioning sleeve;

[0011] The distance between the fitting edge and the center of the circle of the steering wheel locating sleeve in the first image is calculated and recorded as the spring boundary distance of the center point of the steering wheel locating sleeve.

[0012] Preferably, the image acquisition device is configured as a camera.

[0013] Preferably, the image acquisition device is adjustably arranged above the steering wheel positioning sleeve.

[0014] Preferably, the steering wheel positioning sleeve is detachably mounted on a carrier of a positioning frame, wherein the first light source and the second light source are both mounted on the positioning frame.

[0015] Preferably, the first light source is mounted on the positioning frame in an adjustable manner.

[0016] Preferably, the second light source is mounted on the positioning frame in an adjustable manner.

[0017] Preferably, the first light source is mounted on the image acquisition device.

[0018] Preferably, the spring in the first image and the second image is fitted to fit a fitting edge line of the spring in the first image that is blocked by the steering wheel positioning sleeve.

[0019] Furthermore, the present application provides a storage medium storing a computer executable program. When the program is executed, any of the above-mentioned methods for detecting the boundary spacing of the steering wheel locating sleeve center point spring can be executed.

[0020] In addition, the present application provides a computer device, which includes a storage medium and a central processing unit. The storage medium may be a non-volatile storage medium, in which a computer executable program is stored. The central processing unit is connected to the non-volatile storage medium and executes the computer executable method for detecting the boundary spacing of the center point of the steering wheel positioning sleeve as described in any of the above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A flow chart of a method for detecting the spring boundary distance at the center point of a steering wheel locating sleeve in an example is shown.

[0022] Figure 2 A perspective view of a detection device in one embodiment is shown.

[0023] Figure 3 Shows Figure 2 An enlarged schematic diagram of part A in FIG.

[0024] Figure 4 A simplified schematic diagram of part of the structure of an example is shown.

[0025] Figure 5 A simplified structural diagram of a computer device is shown. DETAILED DESCRIPTION

[0026] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0027] Those skilled in the art should understand that, in the disclosure of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0028] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0029] In the prior art, when detecting the spring boundary distance at the center point of the steering wheel locating sleeve, the distance between the steering wheel and the spring is difficult to detect precisely because the sizes of the steering wheel and the spring are different in different vehicle models and part of the spring is blocked from view.

[0030] refer to Figure 2-Figure 4 To this end, an embodiment of the present application provides a steering wheel positioning sleeve center point spring boundary spacing detection method, the steering wheel positioning sleeve center point spring boundary spacing detection method is performed by a detection device 100, wherein the detection device 100 includes a positioning frame 10, wherein at least one carrier 20 is arranged on the positioning frame 10. At least one first light source 30 and at least one image acquisition device 40 are arranged above the carrier 20.

[0031] At least one first loading position 201 and one second loading position 202 are arranged on the loading platform 20. In one example, a steering wheel positioning sleeve 700 is carried on the first loading position 201, wherein the spring 800 is carried on the second loading position 202, wherein the first loading position 201 is located above the second loading position 202. The first light source 30 and the image acquisition device 40 are arranged above the first loading position 201 and the second loading position 202.

[0032] Furthermore, the detection device 100 further includes a second light source 50 , wherein the second light source 50 is disposed below the second carrier 202 .

[0033] Those skilled in the art can understand that, when detecting the spring boundary spacing at the center point of the steering wheel positioning sleeve, exposure can be first performed through the first light source 30, and then the first image exposed by the first light source 30 can be acquired through the image acquisition device 40. In the first image, since the spring 800 is partially blocked by the steering wheel positioning sleeve 700, the outline of the steering wheel positioning sleeve 700 and the outline of the part of the spring 800 not blocked by the steering wheel positioning sleeve 700 can be displayed in the first image.

[0034] Subsequently, the second light source 50 is used for exposure, and the second image when the second light source 50 is exposed is obtained by the image acquisition device 40. It can be understood by those skilled in the art that, in the second image, since the steering wheel positioning sleeve 700 is backlit and the spring 800 is front-lit, the image of the spring 800 can be obtained in the second image.

[0035] Subsequently, through image processing technology, the steering wheel positioning sleeve 700 and / or the spring 800 in the first image and the second image are fitted, and then the fitting edge line of the part corresponding to the part blocked by the steering wheel in the first image can be fitted; in addition, when analyzing the first image, the center of the steering wheel in the first image can also be obtained, and the distance between the fitting edge line and the center of the steering wheel in the first image is calculated and recorded as the steering wheel positioning sleeve center point spring boundary spacing.

[0036] Preferably, by fitting the spring 800 in the first image and the second image, a fitting edge line of a portion corresponding to the portion blocked by the steering wheel in the first image can be fitted.

[0037] refer to Figure 1 According to another aspect of the present application, the present application also provides a method for detecting the boundary spacing between the center point spring 800 of the steering wheel positioning sleeve 700, which comprises:

[0038] S1001, exposing through a first light source 30 located above the steering wheel positioning sleeve, and acquiring a first image between the steering wheel positioning sleeve 700 and the spring 800 through an image acquisition device 40 installed above the steering wheel positioning sleeve 700;

[0039] S1002, analyzing the first image to determine the center of the steering wheel positioning sleeve 700 and the edge of the portion of the spring 800 that is not blocked by the steering wheel positioning sleeve 700 in the first image;

[0040] S1003, exposing through a second light source 50 located below the spring 800, and acquiring a second image between the steering wheel positioning sleeve 700 and the spring 800 through an image acquisition device 50 installed above the steering wheel positioning sleeve 700;

[0041] S1004, fitting the steering wheel positioning sleeve 700 and / or the spring 800 in the first image and the second image to fit the fitting edge line of the spring 800 that is blocked by the steering wheel positioning sleeve 700 in the first image;

[0042] S1005, calculating the distance between the fitting edge line and the center of the circle of the steering wheel locating sleeve in the first image, and recording it as the steering wheel locating sleeve center point spring boundary distance.

[0043] In one embodiment, the image acquisition device 40 is configured as a camera.

[0044] In one embodiment, the image acquisition device is adjustably disposed above the steering wheel positioning sleeve. In this embodiment, a plurality of pairs of first load positions 201 and second load positions 202 are disposed on the carrier 20 to be able to carry different models of the steering wheel positioning sleeve 700 and the spring 800.

[0045] More preferably, the first light source 30 and / or the image acquisition device 40 are mounted on the positioning frame in an adjustable manner so that different models of the steering wheel positioning sleeve 700 and the spring 800 can be detected by a set of the first light source 30 and the image acquisition device 40.

[0046] Preferably, the first light source 30 is configured to be connected to the image acquisition device 40 .

[0047] More preferably, the second light source 50 is also mounted on the positioning frame 10 in an adjustable position, so that different models of the steering wheel positioning sleeve 700 and the spring 800 can be detected by a set of the first light source 30 , the second light source 50 and the image acquisition device 40 .

[0048] It is worth mentioning that the steering wheel positioning sleeve 700 is detachably mounted on a carrier 11 of the positioning frame 10 , wherein the first light source 30 and the second light source 50 are both mounted on the positioning frame 10 .

[0049] According to another aspect of the present invention, the present invention also provides Figure 5 This is a schematic diagram of the structure of an embodiment of the computer device of the present application, such as Figure 5 As shown, the above-mentioned computer device may include: one or more processors and memories; and one or more computer programs.

[0050] Among them, the above-mentioned computer device can be a computer, a server, a mobile terminal (mobile phone), a cash register device, a computer, a smart screen, a drone, an intelligent connected vehicle (Intelligent Connected Vehicle; hereinafter referred to as: ICV), a smart / intelligent car or a vehicle-mounted device and other devices.

[0051] The one or more computer programs are stored in the memory, and the one or more computer programs include instructions, which, when executed by the device, enable the device to execute the steering wheel locating sleeve center point spring boundary spacing detection method.

[0052] like Figure 5 As shown, the computer device includes a processor 910 and a memory 920. The processor 910 and the memory 920 can communicate with each other through an internal connection path to transmit control and / or data signals. The memory 920 is used to store computer programs, and the processor 910 is used to call and run the computer program from the memory 920.

[0053] The above-mentioned memory 920 can be a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or it can be an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital universal disc, Blu-ray disc, etc.), magnetic disk storage medium or other magnetic storage device, or it can also be any other medium that can be used to carry or store the desired program code in the form of instructions or data structures and can be accessed by a computer.

[0054] The processor 910 and the memory 920 may be combined into a processing device, or more commonly, they are independent components, and the processor 910 is used to execute the program code stored in the memory 920 to implement the above functions. In specific implementation, the memory 920 may also be integrated into the processor 910, or may be independent of the processor 910.

[0055] It should be understood that Figure 5 The computer device shown can implement the present application Figure 1 The various processes of the method provided in the illustrated embodiment. The operations and / or functions of the various modules in the computer device are respectively to implement the corresponding processes in the above method embodiments. For details, please refer to the present application Figure 1 To avoid repetition, the detailed description of the method embodiment is appropriately omitted here.

[0056] In addition, in order to make the functions of the computer device more complete, the computer device may further include one or more of a power supply 940 , an input unit 950 , and the like.

[0057] Optionally, the power supply 950 is used to provide power to various devices or circuits in the computer device.

[0058] It should be understood that Figure 5 The processor 910 in the computer device shown may be a system on chip SOC, and the processor 910 may include a central processing unit (Central Processing Unit; hereinafter referred to as CPU), and may further include other types of processors.

[0059] In summary, the various processors or processing units inside the processor 910 can work together to implement the previous method flow, and the corresponding software programs of the various processors or processing units can be stored in the memory 920.

[0060] The present application also provides a computer device, the device comprising a storage medium and a central processing unit, the storage medium may be a non-volatile storage medium, the storage medium stores a computer executable program, the central processing unit is connected to the non-volatile storage medium, and executes the computer executable program to implement the present application Figure 1 Or the method provided in the embodiment shown in 7.

[0061] In the above embodiments, the processor involved may include, for example, a CPU, a DSP, a microcontroller or a numerical signal processor, and may also include a GPU, an embedded neural network processor (Neural-network Process Units); the processor may also include necessary hardware accelerators or logic processing hardware circuits, such as ASICs, or one or more integrated circuits for controlling the execution of the program of the technical solution of the present application. In addition, the processor may have the function of operating one or more software programs, and the software programs may be stored in a storage medium.

[0062] The present application also provides a computer-readable storage medium, in which a computer program is stored. When the computer-readable storage medium is run on a computer, the computer executes the present application. Figure 1 Or the method provided in the embodiment shown in 7.

[0063] The present application also provides a computer program product, which includes a computer program, which, when executed on a computer, enables the computer to execute the present application. Figure 1 Or the method provided in the embodiment shown in 7.

[0064] Those of ordinary skill in the art will appreciate that the various units and algorithm steps described in the embodiments disclosed herein can be implemented in a combination of electronic hardware, computer software, and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0065] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0066] In several embodiments provided in the present application, if any function 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 technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory; hereinafter referred to as: ROM), random access memory (Random Access Memory; hereinafter referred to as: RAM), disk or optical disk, and other media that can store program codes.

[0067] The above is only a specific implementation of the present application. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. The protection scope of the present application should be based on the protection scope of the claims.

[0068] It should be understood by those skilled in the art that the embodiments of the present application described above and shown in the accompanying drawings are only examples and do not limit the present application. The advantages of the present application have been fully and effectively realized. The functions and structural principles of the present application have been demonstrated and explained in the embodiments, and the embodiments of the present application may be deformed or modified in any way without departing from the principles.

[0069] It should be understood by those skilled in the art that the embodiments of the present application described above and shown in the accompanying drawings are only examples and do not limit the present application. The advantages of the present application have been fully and effectively realized. The functions and structural principles of the present application have been demonstrated and explained in the embodiments, and the embodiments of the present application may be deformed or modified in any way without departing from the principles.

Claims

1. A method for detecting the boundary spacing between the center point and the spring of a steering wheel positioning sleeve, characterized in that: The steering wheel positioning sleeve center point spring boundary spacing detection method comprises: Expose through a first light source located above the steering wheel positioning sleeve, and acquire a first image between the steering wheel positioning sleeve and the spring through an image acquisition device installed above the steering wheel positioning sleeve; Analyze the first image to determine the center of the steering wheel locating sleeve and the edge of the portion of the spring not blocked by the steering wheel locating sleeve in the first image; Expose through a second light source located below the spring, and acquire a second image between the steering wheel aligning sleeve and the spring through an image acquisition device installed above the steering wheel aligning sleeve; Fitting the steering wheel positioning sleeve and / or the spring in the first image and the second image to fit the fitting edge line of the spring in the first image that is blocked by the steering wheel positioning sleeve; The distance between the fitting edge and the center of the circle of the steering wheel locating sleeve in the first image is calculated and recorded as the spring boundary distance of the center point of the steering wheel locating sleeve.

2. The method for detecting the boundary spacing between the center point and the spring of a steering wheel positioning sleeve according to claim 1, characterized in that: The image acquisition device is configured as a camera.

3. The method for detecting the boundary spacing between the center point and the spring of the steering wheel positioning sleeve according to claim 1, characterized in that: The image acquisition device is adjustably arranged above the steering wheel positioning sleeve.

4. The method for detecting the boundary spacing between the center point and the spring of the steering wheel positioning sleeve according to claim 3 is characterized in that: The steering wheel positioning sleeve is detachably mounted on a carrier of a positioning frame, wherein the first light source and the second light source are both mounted on the positioning frame.

5. The method for detecting the boundary spacing between the center point and the spring of the steering wheel positioning sleeve according to claim 4, characterized in that: The first light source is mounted on the positioning frame in an adjustable manner.

6. The method for detecting the boundary spacing between the center point and the spring of a steering wheel positioning sleeve according to claim 4, characterized in that: The second light source is mounted on the positioning frame in an adjustable manner.

7. The method for detecting the boundary spacing between the center point and the spring of a steering wheel positioning sleeve according to claim 5, characterized in that: The first light source is installed on the image acquisition device.

8. The method for detecting the boundary spacing between the center point and the spring of a steering wheel positioning sleeve according to claim 1, characterized in that: The spring in the first image and the second image is fitted to fit a fitting edge line of the spring in the first image that is blocked by the steering wheel positioning sleeve.

9. A storage medium, characterized in that: A computer executable program is stored, and when the program is executed, the steering wheel positioning sleeve center point spring boundary distance detection method as described in any one of claims 1-8 can be executed.

10. A computer device, characterized in that The device includes a storage medium and a central processing unit. The storage medium may be a non-volatile storage medium. A computer executable program is stored in the storage medium. The central processing unit is connected to the non-volatile storage medium and executes the computer executable method for detecting the boundary spacing of the center point spring of the steering wheel locating sleeve as described in any one of claims 1-8.

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