Keycap detection device and system

Abstract

The utility model provides a keycap detection device and system, and the device comprises a bearing surface which is used for bearing a keycap; the acquisition assembly is arranged corresponding to the bearing surface and is used for at least acquiring a target surface image of the keycap; and the reflecting surface is arranged on the peripheral side of the bearing surface and can reflect the side surface image of the keycap to the acquisition assembly, so that the acquisition assembly acquires the side surface image of the keycap at the same time.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of detection devices, in particular to a keycap detection device and system. BACKGROUND

[0002] In keycap production, it is crucial to ensure the appearance quality. Nowadays, the consumer market has strict requirements for the appearance of electronic products, and surface defects of keycaps will affect the purchasing and using experience of consumers.

[0003] In actual production, the injection molding process is disturbed by various factors, resulting in frequent occurrence of keycap appearance defects. Fluctuations in injection molding conditions can easily cause concave and convex points on the surface of the keycap; material property dispersion and environmental influence can cause yellowing and discoloration, and subsequent processing and assembly can also easily cause scratches. Relying on manual detection of keycap appearance defects not only has low detection efficiency and rising labor costs, but also is greatly affected by subjective factors.

[0004] Currently, the appearance image of the keycap is collected through a lens and transmitted to the system end for detection, which can speed up the detection and improve the product quality. However, the lens cannot simultaneously capture the appearance of the top wall and the side wall of the keycap, and the appearance images of the top wall and the side wall of the keycap need to be collected separately, which delays the work efficiency. Therefore, the above problems need to be solved urgently. SUMMARY

[0005] The present disclosure provides a keycap detection device and system, and the technical solution is as follows:

[0006] A keycap detection device, comprising:

[0007] a bearing surface for bearing a keycap;

[0008] a collection assembly corresponding to the bearing surface, for collecting at least a target surface image of the keycap;

[0009] a reflecting surface arranged on the periphery of the bearing surface, capable of reflecting a side surface image of the keycap to the collection assembly, so that the collection assembly simultaneously collects the side surface image of the keycap.

[0010] In some embodiments, further comprising: an imaging assembly, at least one of the imaging assemblies is arranged between the side surface of the keycap and the reflecting surface, for presenting the image of the side surface of the keycap to the reflecting surface through the imaging assembly.

[0011] In some embodiments, the imaging assembly is a convex lens, and the mirror surfaces of the convex lens are arranged on the periphery of the bearing surface in pairs.

[0012] In some embodiments, the angle between the convex lens and the reflecting surface and the angle between the reflecting surface and the bearing surface are adjustable to adapt to different heights and shapes of the keycap detection requirements.

[0013] In some embodiments, the acquisition assembly comprises:

[0014] a camera disposed on the upper end of the bearing surface for simultaneously acquiring target surface images and side surface images of the keycap;

[0015] a light source assembly disposed above the bearing surface for providing uniform illumination to make the keycap surface shadowless.

[0016] In some embodiments, the acquisition assembly further comprises: a light shield disposed above the bearing surface, the light source assembly being disposed in the light shield, the light shield being used to shield part of the light of the light source assembly to avoid direct illumination of the camera by the light and direct illumination of the camera by the light after passing through the convex lens.

[0017] In some embodiments, the light shield comprises:

[0018] a top wall provided with a hollow part, the light source assembly being disposed around the hollow part;

[0019] a side wall disposed around the circumference of the top wall and extending towards the bearing surface;

[0020] a first light shielding structure disposed in the hollow part of the top wall for avoiding direct entry of the light of the light source assembly into the camera through the hollow part;

[0021] a second light shielding structure disposed in the side wall for shielding the convex lens to avoid direct entry of the light of the light source assembly into the camera through the convex lens.

[0022] In some embodiments, further comprising: a light filter adjacent to the acquisition assembly and disposed on the side of the camera facing the bearing surface, the light filter being used to transmit light within a specific wavelength range.

[0023] In some embodiments, further comprising an image processing unit connected to the acquisition assembly for receiving and processing the acquired image data to perform defect identification and color analysis operations.

[0024] In some embodiments, a keycap detection system is also proposed, comprising: a transmission assembly and a keycap detection device, the transmission assembly being capable of continuously transmitting a plurality of keycaps to the keycap detection device for detection.

[0025] The keycap detection device comprises:

[0026] A bearing surface for bearing the keycap;

[0027] A collection assembly corresponding to the bearing surface, for collecting at least a target surface image of the keycap;

[0028] A reflecting surface arranged on the periphery of the bearing surface, capable of reflecting a side surface image of the keycap to the collection assembly, so that the collection assembly simultaneously collects the side surface image of the keycap.

[0029] The above description is only a summary of the technical solutions of the present disclosure. In order to more clearly understand the technical means of the present disclosure, and to implement the content of the specification, the following will be described in detail with the preferred embodiments of the present disclosure and in conjunction with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present disclosure or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0031] Figure 1 The structure schematic diagram of the keycap detection device provided by the present disclosure is shown in the figure;

[0032] Figure 2 The structure schematic diagram of the imaging assembly provided by the present disclosure is shown in the figure on the basis of the embodiment shown in the figure; Figure 1

[0033] The structure schematic diagram of the light shield and light source assembly provided by the present disclosure is shown in the figure on the basis of the embodiment shown in the figure; Figure 3 Figure 2 The structure schematic diagram of the light filter provided by the present disclosure is shown in the figure on the basis of the embodiment shown in the figure.

[0034] Figure 4 Figure 3

[0035] Explanation of reference signs:

[0036] 10. Bearing surface; 20. Collection assembly; 21. Light source assembly; 30. Reflecting surface; 40. Imaging assembly; 50. Light shield; 51. Top wall; 511. Hollow part; 52. Side wall; 53. First light shielding structure; 54. Second light shielding structure; 60. Light filter. DETAILED DESCRIPTION ​​​

[0037] The embodiments of the present disclosure will be described in further detail below with reference to the drawings and examples. The following detailed description of the examples and the accompanying drawings are provided to illustrate the principles of the present disclosure, and should not be taken in a limiting sense. The present disclosure can be implemented in numerous ways, including, but not limited to, the specific embodiments described in this document. Rather, any number of variations and modifications can be made to the described embodiments without departing from the scope of the present disclosure.

[0038] The present disclosure provides these examples in order to more completely illustrate the principles of the present disclosure and to enable one skilled in the art to make and use the disclosure. It is expressly noted, however, that the examples set forth in these examples are intended to be exemplary only and should not be construed as limiting the scope of the present disclosure in any way. Unless otherwise indicated, the relative arrangements of components and steps, the numerical expressions and numerical values set forth in these examples are not intended to limit the scope of the present disclosure.

[0039] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for ease of description of the present disclosure and simplification of description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present disclosure. When the absolute position of the described object changes, the relative positional relationship can also change accordingly.

[0040] In addition, the "first", "second", and similar words used in the present disclosure do not indicate any order, number, or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0041] It should also be noted that, in the description of the present disclosure, unless otherwise specified and limited, the terms "mounting", "connecting", "connection" should be interpreted broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between a first device and a second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0042] All terms used in the present disclosure have the same meaning as understood by those of ordinary skill in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or overly formalized sense, unless specifically defined herein.

[0043] Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification where appropriate.

[0044] As shown in Figure 1 The present disclosure proposes a keycap detection device, which comprises a bearing surface 10, a collection assembly 20, and a reflecting surface 30.

[0045] The bearing surface 10 is used to bear the keycap, the collection assembly 20 is arranged correspondingly with the bearing surface 10, and is used to collect at least the target surface image of the keycap. The reflecting surface 30 is arranged on the periphery of the bearing surface 10, and can reflect the side surface image of the keycap to the collection assembly 20, so that the collection assembly 20 can collect the side surface image of the keycap at the same time.

[0046] It can be understood that the bearing surface 10 can be a plane, which is used to stably place the keycap to be detected. The collection assembly 20 is arranged correspondingly with the bearing surface 10, and can be used to collect the target surface image of the keycap. The target surface can be the pressing surface of the keycap pressed by the user, for example, the top surface of the keycap, that is, the top surface directly struck by the finger when the keyboard is working. The target surface can also be any side surface of the keycap.

[0047] The reflecting surface 30 is arranged around the bearing surface 10, and is used to reflect the side surface image of the keycap to the collection assembly 20, so that the collection assembly 20 can capture the images of the top surface and the side surface of the keycap at the same time, which can improve the detection speed and reduce the production cycle. By using the reflecting surface 30, the keycap outer surface can be detected in all directions without increasing additional cameras or other responsible mechanical structures, which can save the occupied space of the equipment.

[0048] The reflecting surface 30 can be made of a material with high reflectivity, such as optical glass or metal coating (such as silver or aluminum) or a mirror. The reflected wave band can be 570nm-590nm, and the reflected image can not be distorted to provide clear reflection effect. The position of the reflecting surface 30 can be distributed on the periphery of the bearing surface 10 to ensure that the side surface area of the keycap can be fully covered from multiple high angles.

[0049] The acquisition assembly 20 at least includes a camera or a lens, responsible for image capture and an image processing unit. The image processing unit can perform preliminary processing on the captured raw image data, including but not limited to noise reduction, contrast enhancement, color correction, etc. The image processing unit can also integrate some basic defect detection algorithms to mark obvious defects in the image in the first time. It should be noted that this algorithm is not the content to be protected by the present scheme, but only as a way to achieve image processing.

[0050] The working process of the keycap detection device is as follows:

[0051] Before starting the detection, first ensure that all components (the bearing surface 10, the acquisition assembly 20 and the reflecting surface 30) are in good working condition. Check whether the lens of the acquisition assembly 20 is clean and whether the reflecting surface 30 has stains or damage; adjust the position of the bearing surface 10 and the angle and height of the acquisition assembly 20 according to the type of keycap to be detected, to ensure that the images of the top wall 51 and the side wall 52 of the keycap can be accurately captured.

[0052] Place the keycap: Place the keycap to be detected on the bearing surface 10 smoothly. Ensure that the keycap is placed in the correct position to facilitate the smooth progress of the subsequent image acquisition work.

[0053] Start the detection, start the detection program through the control panel or software interface. At this time, the acquisition assembly 20 will start working to capture the image of the target surface (top surface) of the keycap. At the same time, the reflecting surface 30 reflects the image of the side of the keycap to the acquisition assembly 20, so that the system can simultaneously obtain the images of the top wall 51 and the side wall 52 of the keycap.

[0054] Image analysis: The captured images will be transmitted to the system in real time, and the images will be analyzed and processed using the preset algorithm to identify possible defects such as pits, bumps, yellowing, discoloration, etc.

[0055] Result output: According to the results of image analysis, the system will give the corresponding judgment and identify which keycaps meet the quality standards and which need further inspection or are directly judged as unqualified products. The above information can be displayed on the display and can be saved in the form of printing or electronic document for subsequent quality tracking and management.

[0056] Clean up and prepare for the next round of detection: After completing the detection of the current batch of keycaps, remove the keycaps on the bearing surface 10 and prepare for the next round of detection.

[0057] In summary, by using the acquisition component 20 to simultaneously acquire images of the top wall 51 and side wall 52 of the keycap, the detection speed is greatly improved, the production cycle is reduced, and work efficiency is increased. At the same time, it reduces manpower input, thereby minimizing errors caused by human factors and saving significant labor costs.

[0058] In some embodiments, such as Figure 2 As shown, it also includes an imaging component 40, at least one imaging component 40 is disposed between the side of the keycap and the reflective surface 30, for displaying the image of the side of the keycap on the reflective surface 30 after passing through the imaging component 40.

[0059] Understandably, to optimize the image capture process of the keycap side, an imaging component 40 is placed between the keycap side and the reflective surface 30. The imaging component 40 can perform preliminary processing on the raw image acquired from the keycap side, such as focusing, magnification, or adjusting the viewing angle, to ensure that the image reflected onto the acquisition component 20 is clear and accurate. Furthermore, by using the imaging component 40, imaging parameters can be flexibly adjusted according to different keycap shapes and sizes, making the entire detection device more versatile.

[0060] In some embodiments, such as Figure 2 As shown, the imaging component 40 is a convex lens, with the mirror surfaces of the convex lenses arranged opposite each other on the periphery of the bearing surface 10.

[0061] Understandably, in order to accurately present the image on the side of the keycap as a real image onto the reflective surface 30, and then have the reflective surface 30 reflect this real image to the acquisition component 20 for final image acquisition and analysis.

[0062] Imaging component 40 is configured as a convex lens, with multiple convex lenses symmetrically arranged around the bearing surface 10, each facing the position where the keycap is placed. This arrangement effectively magnifies and focuses different areas on the side of the keycap onto the reflective surface 30, enabling acquisition component 20 to simultaneously acquire high-quality images of the top wall 51 and side wall 52.

[0063] A convex lens can converge light from the side of a keycap, forming a magnified real image. It can capture detailed features, such as minor scratches or imperfections. By selecting convex lenses with different focal lengths, the viewing angle can be adjusted according to actual needs, ensuring that all key areas on the side of the keycap are covered.

[0064] The convex lenses are arranged in pairs facing each other, meaning they are evenly distributed along the circumference of the bearing surface 10. This layout helps ensure that the side image of the keycap viewed from all directions can be accurately captured and reduces distortion caused by viewing angle deviations.

[0065] The reflective surface 30 cooperates with the convex lens. The reflective surface 30 can be located at the focal point of the convex lens to reflect the image to the collection assembly 20 most effectively. By using the convex lens, the keycap side details can be highly focused and magnified, and the detection accuracy is significantly improved. Moreover, the symmetrical arrangement of the convex lens can capture information of the keycap side from multiple angles at the same time, reducing the possibility of missing detection.

[0066] In some embodiments, the angle between the convex lens and the reflective surface 30 and the angle between the reflective surface 30 and the bearing surface 10 are adjustable to adapt to the detection requirements of keycaps of different heights and shapes.

[0067] It can be understood that, in order to adapt to the detection requirements of keycaps of different heights and shapes, the angle between the convex lens and the reflective surface 30 and the angle between the reflective surface 30 and the bearing surface 10 are set to be adjustable, and through such flexible adjustment, the adaptability and detection accuracy of the detection device can be enhanced, and different heights, widths and curvatures of keycaps can be flexibly coped with, so as to be applicable to various types of keycaps, and through appropriate angle adjustment, the light path can be optimized, the image can be ensured not to be distorted, and the imaging quality can be improved.

[0068] The angle adjustment between the convex lens and the reflective surface 30 can be achieved by a mechanical structure, for example, a rotating platform or a sliding rail mechanism is used to change the position of the convex lens relative to the reflective surface 30. Electric adjustment can also be used, which can facilitate operation and realize automatic control. An electric motor can be used to drive the above-mentioned mechanical structure for fine adjustment. Or software control can be used, and a software control system is integrated. The user can input corresponding setting values according to the specific parameters of the keycap, and the system can automatically complete the angle adjustment.

[0069] The angle adjustment between the reflective surface 30 and the bearing surface 10 can be achieved by a hinge structure. The reflective surface 30 is connected to the bearing surface 10 or its support through a hinge, and the angle adjustment within a certain range can be achieved by bending the reflective surface 30. A multi-axis adjustment frame can also be used. The reflective surface 30 is installed on the multi-axis adjustment frame, and the multi-angle and multi-direction adjustment of the reflective surface 30 can be achieved through the rotating shaft. Or an intelligent feedback system can also be combined. Through the combination of sensors, the position information during the adjustment process can be detected in real time, and the angle of the reflective surface 30 relative to the bearing surface 10 is adjusted through the feedback mechanism.

[0070] Through the angle adjustment between the convex lens and the reflective surface 30 and the angle adjustment between the reflective surface 30 and the bearing surface 10, whether it is a large or small keycap, or a keycap with a flat or curved side, the ideal detection effect can be achieved through the angle adjustment of the convex lens and the reflective surface 30.

[0071] In some embodiments, as Figure 3As shown, the acquisition component 20 includes a camera and a light source component 21; the camera is arranged on the upper end of the bearing surface 10, for simultaneously acquiring the target surface image and the side surface image of the keycap; the light source component 21 is arranged above the bearing surface 10, for providing uniform illumination to avoid shadow on the surface of the keycap.

[0072] As can be understood, the acquisition component 20 of the keycap detection device includes a camera and a light source component 21, which can simultaneously and efficiently capture the target surface (top surface) and side surface images of the keycap through the cooperative work of the camera and the light source component 21, and provide uniform illumination to avoid the influence of shadows on the imaging quality.

[0073] The camera is arranged directly above the bearing surface 10 and can directly face the top of the keycap for shooting, thereby acquiring the image of the target surface (top surface). At the same time, with the assistance of the reflecting surface 30, the camera can also capture the image of the side surface of the keycap. The camera can also have a wide-angle or adjustable viewing angle function to adapt to keycaps of different shapes and sizes.

[0074] The light source component 21 is also arranged above the bearing surface 10 to ensure that light can uniformly illuminate the entire surface of the keycap, including the top surface and the side surface. The side surface can be directly illuminated by the light source component 21, and can also be illuminated by the reflecting surface 30.

[0075] The light source component 21 can provide a uniform illumination environment to avoid shadows or reflection caused by uneven illumination. The light source provided by the light source component is a full-spectrum light source, covering at least the wavelength of 380nm-780nm of the sunlight spectrum. The light source component 21 can also support multiple illumination modes (such as ring light, side light, etc.) to highlight specific types of surface defects. In addition, in order to adapt to different environmental light conditions and keycaps of different materials, the brightness of the light source can also be adjusted. Therefore, by reasonably configuring the camera and the light source component 21, the detection efficiency and accuracy can be significantly improved to meet the requirements of modern manufacturing for high-quality production.

[0076] In some embodiments, as shown in Figure 3 The acquisition component 20 also includes a light shield 50, which is arranged above the bearing surface 10, and the light source component 21 is arranged in the light shield 50. The light shield 50 is used to shield part of the light of the light source component 21 to avoid direct illumination of the camera by the light and to avoid direct illumination of the camera by the light through the convex lens.

[0077] It can be understood that, in order to optimize the imaging quality, the light shield 50 is arranged in the keycap detection device, the light shield 50 is arranged above the bearing surface 10, and the light source assembly 21 is arranged inside the light shield 50, so as to control the direction and distribution of light, avoid unnecessary light directly irradiating the camera or directly entering the camera through the convex lens, and thus affect the image quality.

[0078] The light shield 50 can effectively block direct light, prevent it from directly irradiating the camera lens, avoid glare or overexposure, and thus affect the image acquisition of the camera on the keycap. The light shield 50 can also prevent the interference of stray light, which refers to light that does not propagate along the intended path. This part of light may enter the camera from a non-target direction, causing the image to be unclear. The light shield 50 can make the light reach the camera along the intended route.

[0079] The light shield 50 can be made of opaque materials with good light absorption performance, such as black matte plastic or metal coated with a light-absorbing coating, to maximize the absorption of excess light.

[0080] The light shield 50 can adopt a cylindrical, square or other geometric shape, and an opening is arranged at the top of the light shield 50, so that the camera can directly collect the image of the top surface of the keycap.

[0081] The light source assembly 21 is arranged inside the light shield 50, so that the distribution and intensity of light can be accurately controlled, ensuring uniform illumination while avoiding interference with the camera. Different types of light sources (such as ring lights, LED arrays, etc.) can be configured inside the light shield 50, and the lighting effect can be optimized by adjusting the position and angle of the light source.

[0082] By introducing the light shield 50, not only can the imaging quality of the keycap detection device be significantly improved, but also the stability and reliability of the detection device can be enhanced, which is particularly suitable for application scenarios with extremely high appearance quality requirements. It can pay close attention to keycap detection details and achieve efficient and accurate detection.

[0083] In some embodiments, as shown in Figure 4 The light shield 50 includes a top wall 51, a side wall 52, a first light shielding structure 53, and a second light shielding structure 54.

[0084] The top wall 51 is provided with a hollow part 511, and the light source assembly 21 is arranged around the hollow part 511;

[0085] The side wall 52 is arranged around the circumference of the top wall 51 and extends towards the bearing surface 10;

[0086] The first light shielding structure 53 is arranged on the hollow part 511 of the top wall 51, and is used to avoid the light of the light source assembly 21 directly entering the camera through the hollow part 511.

[0087] The second light shielding structure 54 is arranged on the side wall 52 to shield the convex lens and prevent the light from the light source assembly 21 from directly entering the camera through the convex lens.

[0088] It can be understood that the light shield 50 is further refined to optimize light management and avoid unnecessary light interference with the imaging quality of the camera. The light shield 50 includes a top wall 51, and a hollow portion 511 is arranged at the center of the top wall 51. The hollow portion 511 is used to allow the light irradiated to the top surface of the keycap to pass through and project into the camera. The light source assembly 21 is located inside the light shield 50 and arranged around the hollow portion 511, which can provide uniform and concentrated illumination on the keycap, avoiding shadows or uneven illumination caused by a single point light source.

[0089] The side wall 52 extends downward from the edge of the top wall 51 to a position close to the bearing surface 10, forming an enclosed structure that can control and guide the light path of the light emitted by the light source assembly 21, ensuring that the light is mainly concentrated on the keycap and its reflection path, reducing direct illumination of the camera, and also avoiding scattered light from the camera.

[0090] The first light shielding structure 53 is located at the hollow portion 511 of the top wall 51 and is mainly used to prevent the light emitted by the light source assembly 21 from directly entering the camera through the hollow portion 511 without any treatment. The first light shielding structure 53 can be a ring-shaped barrier structure arranged around the hollow portion 511 and extending into the interior of the light shield 50 to shield the light and prevent the light emitted by the light source assembly 21 inside the light shield 50 from directly illuminating the camera.

[0091] The second light shielding structure 54 is arranged on the side wall 52 and extends outward to cover the convex lens, preventing the light from the light source assembly 21 from entering the camera through the refraction of the convex lens, thereby affecting the image acquisition effect. The first light shielding structure 53 and the second light shielding structure 54 can be made of light-absorbing materials or can use black matte coatings to increase light absorption.

[0092] Through the arrangement of the top wall 51, the side wall 52, the first light shielding structure 53, and the second light shielding structure 54 of the light shield 50, the direction and distribution of the light can be effectively controlled, unnecessary light interference with the camera can be avoided, and problems such as glare, reflection, and shadows can be effectively reduced, making the final collected image clearer and more accurate, which is beneficial for subsequent analysis and processing.

[0093] In some embodiments, a light filter is also included, which is arranged adjacent to the acquisition assembly 20 and on the side of the camera facing the bearing surface 10. The light filter is used to transmit light within a specific wavelength range.

[0094] It can be understood that the filter helps to identify and detect the color defects of the keycap, such as local yellowing and other problems. By selectively transmitting light in a certain wavelength range, the transmission band is 570nm-590nm, so that the filter can enhance the color contrast of certain types, making the color difference more obvious, thereby improving the detection ability of color defects.

[0095] The filter can be a color filter, a polarizing filter, etc. The color filter can highlight the target color area by filtering out certain wavelengths of light, such as for specific color defects such as local yellowing, discoloration, etc. Using the appropriate filter can help the camera more accurately capture these changes, thereby improving the accuracy of detection. In complex lighting conditions, background light or other non-target light sources may interfere with color detection results. The filter can effectively filter out unnecessary light, ensuring that only wavelengths related to detection are captured by the camera, thereby reducing the likelihood of false positives.

[0096] The polarizing filter can reduce reflected light and glare, and can improve image contrast. In the case of keycaps with shiny surfaces, using a polarizing filter can help eliminate unnecessary reflections, making the image clearer. It can be suitable for detecting keycaps with smooth or high-reflectivity surfaces, helping to highlight subtle color changes or surface defects.

[0097] Taking the color filter as an example, when detecting whether a batch of white keycaps has local yellowing problems, a filter that enhances blue-green spectral components while suppressing yellow spectral components can be selected. Even slight yellowing phenomena will appear more prominent in the final image, making it easier for algorithms to identify and mark them. It is suitable for product lines with strict appearance quality requirements, ensuring that every keycap leaving the factory meets high-quality specifications, thereby improving user experience. By introducing the filter, the efficiency and accuracy of keycap color defect detection have been improved.

[0098] In some embodiments, an image processing unit is also included, connected to the acquisition assembly 20, for receiving and processing the collected image data, performing defect identification and color analysis operations.

[0099] It can be understood that the keycap detection device also includes an image processing unit connected to the acquisition assembly 20, responsible for receiving and processing the image data collected by the camera. Through the image processing unit, complex operations such as keycap surface defect identification and color analysis can be realized.

[0100] The image processing unit can automatically identify physical defects such as pits, bumps, scratches, and cracks on the surface of the keycap through algorithms. Image processing techniques can also be used to improve image contrast, making subtle imperfections more visible for subsequent analysis. Ensure that the color of the keycap meets the predetermined standard, such as detecting whether there is local yellowing or other discoloration. Color correction according to pre-set standards to ensure consistent color of keycaps produced in different batches. And in order to quickly process a large amount of image data, a high-performance CPU or GPU is usually required to support the operation of the image processing unit.

[0101] It should be noted that the functions implemented by the image processing unit are those that can be implemented by image processing units in the prior art, and the functions of the image processing unit are not the content to be protected by the present disclosure, but are used here for illustration.

[0102] In some embodiments, a keycap detection system is proposed, comprising: a transmission assembly and a keycap detection device, the transmission assembly can continuously transmit a plurality of keycaps to the keycap detection device for detection;

[0103] The keycap detection device comprises a bearing surface 10 for bearing the keycaps, an acquisition assembly 20 corresponding to the bearing surface 10, for acquiring at least the target surface image of the keycaps, and a reflecting surface 30 disposed on the side of the bearing surface 10, capable of reflecting the side surface image of the keycaps to the acquisition assembly 20, so that the acquisition assembly 20 simultaneously acquires the side surface image of the keycaps.

[0104] It can be understood that the proposed keycap detection system can realize an efficient and continuous automated detection process, ensuring that each keycap can be accurately detected for appearance quality on the production line.

[0105] The transmission assembly is responsible for continuously transmitting a plurality of keycaps to the keycap detection device for detection, and the keycap detection device can detect the appearance quality of the transmitted keycaps, including image acquisition and analysis of the top surface and side surface of the keycaps.

[0106] The transmission assembly can realize continuous transmission and smoothly transport a plurality of keycaps from one link of the production line to the keycap detection device. And it can ensure that each keycap is accurately placed on the bearing surface 10, so that the subsequent image acquisition work can proceed smoothly.

[0107] The transmission of the transmission assembly can use a motor-driven conveyor belt to transport the keycaps at a set speed and interval. For more precise position control, a mechanical arm or grabbing device can also be used to handle the keycaps. In order to ensure the accurate positioning of the keycaps, photoelectric sensors or other types of sensors can be installed on the transmission path to monitor the position of the keycaps in real time and trigger the corresponding operation.

[0108] For the keycap detection device, the bearing surface 10 can provide a stable platform to ensure the keycap remains in a fixed position during detection. To prevent the keycap from sliding, the bearing surface 10 should be made of a non-slip material.

[0109] The acquisition component 20 can include a camera to acquire an image of the target surface (top surface) of the keycap and obtain an image of the side surface through the reflecting surface 30.

[0110] The reflecting surface 30 is arranged on the side of the bearing surface 10 and can reflect the image of the side surface of the keycap to the acquisition component 20, so that the acquisition component 20 can simultaneously capture the images of the top surface and the side surface of the keycap.

[0111] It should be noted that the keycap detection device has been described in detail above, and will not be described again here.

[0112] So far, the embodiments of the present disclosure have been described in detail. In order to avoid obscuring the concept of the present disclosure, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0113] Although some specific embodiments of the present disclosure have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present disclosure. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present disclosure. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A keycap detection apparatus, characterized by, The keycap detection device comprises: a bearing surface for bearing a keycap; a collection assembly corresponding to the bearing surface, for collecting at least a target surface image of the keycap; a reflecting surface arranged on the periphery of the bearing surface, capable of reflecting a side surface image of the keycap to the collection assembly, so that the collection assembly simultaneously collects the side surface image of the keycap.

2. The keycap detection apparatus of claim 1, wherein Further comprising: at least one imaging assembly arranged between the side surface of the keycap and the reflecting surface, for presenting the image of the side surface of the keycap to the reflecting surface through the imaging assembly.

3. The keycap detection device according to claim 2, wherein: the imaging assembly is a convex lens, and the mirror surfaces of the convex lens are arranged on the periphery of the bearing surface in pairs.

4. The keycap detection device according to claim 3, wherein: the angle between the convex lens and the reflecting surface and the angle between the reflecting surface and the bearing surface are adjustable to adapt to the detection requirements of keycaps of different heights and shapes.

5. The keycap detection apparatus of claim 3, wherein The collection assembly comprises: a camera arranged on the upper end of the bearing surface, for simultaneously collecting the target surface image and the side surface image of the keycap; a light source assembly arranged above the bearing surface, for providing uniform illumination to make the surface of the keycap free of shadows.

6. The keycap detection apparatus of claim 5, wherein, The collection assembly further comprises: a light shield arranged above the bearing surface, and the light source assembly is arranged in the light shield, the light shield is used for shielding part of the light of the light source assembly to avoid direct illumination of the light on the camera and direct illumination of the light on the camera through the convex lens.

7. The keycap detection apparatus of claim 6, wherein, The light shield comprises: a top wall provided with a hollow part, and the light source assembly is arranged around the hollow part; a side wall arranged around the periphery of the top wall and extending towards the bearing surface; a first light shielding structure arranged in the hollow part of the top wall, for avoiding direct passage of the light of the light source assembly through the hollow part into the camera; a second light shielding structure arranged on the side wall for shielding the convex lens to avoid direct passage of the light of the light source assembly through the convex lens into the camera.

8. The keycap detection apparatus of claim 5, wherein, Further comprising: a light filter arranged adjacent to the collection assembly and on the side of the camera facing the bearing surface, the light filter is used to transmit light within a specific wavelength range.

9. The keycap detection apparatus of claim 1, wherein, Further comprising an image processing unit connected to the collection assembly, for receiving and processing collected image data, and performing defect recognition and color analysis operations.

10. A keycap detection system, characterized by, The keycap detection device comprises: a bearing surface for bearing a keycap; a collection assembly corresponding to the bearing surface, for collecting at least a target surface image of the keycap; ​ ​ A reflecting surface is arranged on the periphery of the bearing surface and can reflect the side surface image of the keycap to the acquisition assembly, so that the acquisition assembly simultaneously acquires the side surface image of the keycap.

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