A spray image recognition device resistant to strong sunlight interference

Abstract

The application discloses a strong sunlight interference resistant spraying image recognition device and belongs to the spraying technical field.The strong sunlight interference resistant spraying image recognition device is controlled through the light reflection structure on the device, light is reflected onto the solar cell panel through the reflection structure in the environment where sunlight is relatively strong, photovoltaic power generation work is carried out, the light shield plate is driven to carry out light shielding work, and since the reflection support is arranged above the solar cell panel, external light can be shielded, the photovoltaic power generation effect of the reflected sunlight is poor, charging work cannot be carried out in the daily use environment, and the use convenience of the device is improved.

Description

Technical Field

[0001] This invention relates to the field of spraying technology, and in particular to a spraying image recognition device that is resistant to strong sunlight interference. Background Technology

[0002] Spraying is a method of applying paint evenly to the surface of an object using a spray gun or sprayer. Spraying can be applied to many different fields, including the automotive industry, construction, home decoration, and artistic creation. The advantage of spraying is that it can quickly and efficiently coat large areas of an object surface and achieve a uniform coating effect. During the spraying process, the paint is sprayed from the nozzle through the spray gun or sprayer, forming fine particles that then adhere evenly to the surface of the object.

[0003] When carrying out outdoor spraying work, it is generally advisable to choose a sunny day. When recognizing the sprayed pattern, it will be affected by external light. When the sunlight is strong, the intensity of the light is greater, and the acquisition device may fail to recognize the pattern. The difference between the acquired light spot and the back panel is smaller, which increases the difficulty of using the acquisition device. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems in the above and / or existing technologies, such as the inability of the acquisition device to identify due to high light intensity, and the small difference between the acquired light spot and the back plate, which increases the difficulty of using the acquisition device, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by the present invention is that when the intensity of light irradiation is high, the acquisition device is prone to failure to identify the light, and the difference between the acquired light spot and the back plate is small, which increases the difficulty of using the acquisition device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a spray painting image recognition device resistant to strong sunlight interference, comprising, A data collection component includes a data collection panel, a light-shielding component, a reflective bracket, and a solar panel. One end of the data collection component is movably connected to the data collection panel, the data collection component is provided with a light-shielding component, one end of the light-shielding component is fixedly installed with a reflective bracket, and the solar panel is provided inside the reflective bracket. A mobile device includes a hydraulic straight arm, an adjusting base, and a sliding rail. The adjusting base is movably mounted on the mobile device, and the hydraulic straight arm is movably connected to the adjusting base. The hydraulic straight arm is movably connected to the acquisition component via the sliding rail.

[0008] As a further embodiment of the present invention: the acquisition component further includes a protective baffle, a positioning ring, a connecting sleeve, and a telescopic connecting rod. The protective baffle is movably connected to the acquisition component. A positioning ring is fixedly installed at one end of the acquisition panel. A linkage column is fixedly connected to the positioning ring. A connecting sleeve is movably connected to the acquisition panel. A telescopic connecting rod is movably connected to one end of the connecting sleeve.

[0009] As a further embodiment of the present invention: the protective baffle includes a positioning slot, an elastic sleeve, and a spring connecting column. The positioning slot is provided inside the protective baffle. Two elastic sleeves symmetrical about the positioning slot are fixedly installed on the protective baffle. A spring connecting column is movably installed inside the elastic sleeve. A balance plate is provided at one end of the spring connecting column. The balance plate is movably connected to the acquisition component through a balance shaft. A correction bracket is provided on the balance plate. A connection positioning hole is reserved on the correction bracket.

[0010] As a further embodiment of the present invention: two protective baffles are symmetrically arranged about the acquisition panel, an identification camera is movably installed on the acquisition panel, and two auxiliary lights are symmetrically arranged on the outside of the identification camera.

[0011] As a further embodiment of the present invention: the connecting sleeve includes a receiving straight groove, a limiting arc groove, a trigger base and a contact switch. The receiving straight groove is provided inside the connecting sleeve, the limiting arc groove is provided on the connecting sleeve, the trigger base is fixedly connected inside the connecting sleeve, and the contact switch is provided inside the trigger base.

[0012] As a further embodiment of the present invention: the connecting sleeve is movably connected by a receiving straight groove and a telescopic connecting rod. The telescopic connecting rod includes a guide straight groove, a guide connecting block and a contact base. The telescopic connecting rod has a guide straight groove, a guide connecting block is fixedly installed in the guide straight groove, and a contact base is provided on the guide connecting block.

[0013] As a further embodiment of the present invention: the shading component includes a drive motor, a sliding rail, a connecting bracket, a sliding block, a rotating screw, and a sunshade. One end of the shading component is movably connected to the drive motor, which is electrically connected to the solar panel through a rectifier. The shading component contains a sliding rail, which contains a connecting bracket. The lower end of the connecting bracket contains a sliding block, which contains a rotating screw. The upper end of the connecting bracket is fixedly connected to the sunshade.

[0014] As a further aspect of the present invention: the reflective bracket includes a light-collecting reflector and a conversion reflector, and the light-collecting reflector and the conversion reflector are arranged inside the reflective bracket, and the light-collecting reflector and the conversion reflector are arranged parallel to each other.

[0015] An identification system, including The identification camera is used to observe the structure of the sprayed image, identify it in conjunction with a pre-input image, and perform comparison through a comparison algorithm in the internal processing module. The processing module is used to input the digital information of the preset graphic and perform image comparison through the built-in comparison unit. Auxiliary lighting, used to provide supplementary illumination to assist the recognition camera in image recognition. As a further aspect of the present invention: the comparison algorithm is as follows: data is recorded according to the pre-input sprayed image shape. The system translates the recorded graphic information into digital information and performs comparison. The method is as follows: the preset graphic data is internally decomposed into features L and features R according to the left and right structure. The data collected by the recognition camera is also decomposed into features l and features r according to the left and right structure. By comparing features L with features l and features R with features r, it is determined whether the collected graphic matches the preset graphic, thereby performing comparison processing. The light generated by the auxiliary lighting lamp shines on the paint and the back plate. Since the paint application area is smoother than the back plate, the back plate produces diffuse reflection after being illuminated, while the paint application area produces specular reflection, which can better collect light. The shape of the light reflection spot is read by the recognition camera and the image is recognized. When the preset graphic shape is different from the light spot shape, the collected data does not match the preset data, and an alarm signal is generated to provide a prompt. When the preset graphic shape is the same as the light spot shape, no prompt is given, and the operation continues.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This spraying image recognition device, which is resistant to strong sunlight interference, is controlled by a light reflection structure on the device. In environments with strong sunlight, the reflection structure reflects light onto the solar panel to generate photovoltaic power, driving the shading plate to perform shading. Since the reflection bracket is set above the solar panel, it can help block external sunlight. Because the photovoltaic power generation effect of the reflected sunlight is poor, it cannot be charged in daily use environments, thus improving the ease of use of the device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of a spray painting image recognition device that resists strong sunlight interference, as provided in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of the acquisition panel of a spray painting image recognition device that resists strong sunlight interference, as provided in an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the internal structure of the acquisition panel of a spray painting image recognition device that resists strong sunlight interference, as provided in an embodiment of the present invention.

[0020] Figure 4 A schematic diagram showing the disassembled structure of a protective baffle for a spray painting image recognition device resistant to strong sunlight interference, as described in an embodiment of the present invention.

[0021] Figure 5 A schematic diagram of the disassembled structure of the connecting sleeve of a spraying image recognition device resistant to strong sunlight interference, as provided in an embodiment of the present invention.

[0022] Figure 6 A schematic diagram of the disassembled structure of the telescopic linkage of a spraying image recognition device resistant to strong sunlight interference, as provided in an embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the overall structure of a reflective bracket for a spraying image recognition device that resists strong sunlight interference, as provided in an embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the internal structure of a reflective bracket for a spraying image recognition device that resists strong sunlight interference, as described in an embodiment of the present invention.

[0025] Figure 9 A schematic diagram of the reflection path structure of a reflective bracket for a spraying image recognition device resistant to strong sunlight interference, as provided in an embodiment of the present invention.

[0026] Figure 10 This is a schematic diagram of the overall structure of a light-shielding component of a spraying image recognition device that resists strong sunlight interference, as provided in an embodiment of the present invention.

[0027] Figure 11 This is a schematic diagram of the identification process of an identification system according to an embodiment of the present invention. Detailed Implementation

[0028] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in an embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0032] Example 1 like Figures 1-3 As shown, the present invention provides a technical solution: a spray painting image recognition device resistant to strong sunlight interference, comprising, The data acquisition component 100 includes a data acquisition panel 102, a light-shielding component 107, a reflective bracket 108, and a solar panel 109. One end of the data acquisition component 100 is movably connected to the data acquisition panel 102. The data acquisition component 100 is provided with a light-shielding component 107. One end of the light-shielding component 107 is fixedly installed with a reflective bracket 108. The solar panel 109 is provided inside the reflective bracket 108. The mobile device 200 includes a hydraulic straight arm 201, an adjusting base 202, and a sliding rail 203. The adjusting base 202 is movably mounted on the mobile device 200, and the hydraulic straight arm 201 is movably connected to the adjusting base 202. The hydraulic straight arm 201 is movably connected to the acquisition component 100 through the sliding rail 203.

[0033] In this embodiment, the movement of the device 200 and the acquisition component 100 are coordinated to better drive the device to move and to better adjust its position during operation. At the same time, the hydraulic straight arm 201 assists in adjusting the angle of the acquisition component 100, thus improving the use of the device and the acquisition of images.

[0034] Example 2 Combined with appendix Figures 4-6 It is concluded that the acquisition component 100 also includes a protective baffle 101, a positioning ring 104, a connecting sleeve 105, and a telescopic connecting rod 106. The protective baffle 101 is movably connected to the acquisition component 100. The positioning ring 104 is fixedly installed at one end of the acquisition panel 102. The linkage connecting column 104a is fixedly connected to the positioning ring 104. The connecting sleeve 105 is movably connected to the acquisition panel 102. The telescopic connecting rod 106 is movably connected at one end of the connecting sleeve 105. The protective baffle 101 includes a positioning slot 101a, an elastic sleeve 101b, and a spring connecting post 101c. The positioning slot 101a is provided inside the protective baffle 101. Two elastic sleeves 101b are fixedly installed on the protective baffle 101, symmetrical about the positioning slot 101a. The spring connecting post 101c is movably installed inside the elastic sleeve 101b. A balance plate 101d is provided at one end of the spring connecting post 101c. The balance plate 101d is movably connected to the acquisition component 100 through a balance shaft 101e. A correction bracket 101f is provided on the balance plate 101d. A connection positioning hole 101f-1 is reserved on the correction bracket 101f. Two protective baffles 101 are symmetrically arranged about the acquisition panel 102. A recognition camera 103 is movably installed on the acquisition panel 102. Two auxiliary lights 103a are symmetrically arranged on the outside of the recognition camera 103. The connecting sleeve 105 includes a receiving straight groove 105a, a limiting arc groove 105b, a trigger base 105c, and a contact switch 105d. The receiving straight groove 105a is provided inside the connecting sleeve 105, and the limiting arc groove 105b is provided on the connecting sleeve 105. The trigger base 105c is fixedly connected inside the connecting sleeve 105, and the contact switch 105d is provided inside the trigger base 105c. The connecting sleeve 105 is movably connected to the telescopic connecting rod 106 via the receiving straight groove 105a. The telescopic connecting rod 106 includes a guide straight groove 106a, a guide connecting block 106b, and a contact base 106c. The telescopic connecting rod 106 has a guide straight groove 106a inside, and the guide connecting block 106b is fixedly installed inside the guide straight groove 106a. The contact base 106c is provided on the guide connecting block 106b.

[0035] In this embodiment: the positioning ring 104 limits the angle of the acquisition panel 102 so that it is parallel to the spraying surface. The connecting sleeve 105 and the telescopic link 106 cooperate with each other, and the internal contact switch 105d provides signal feedback during operation, which facilitates adjustment by ground personnel.

[0036] Example 3 Combined with appendix Figures 7-11 It is concluded that: the shading component 107 includes a drive motor 107a, a motion slide rail 107b, a connecting bracket 107c, a motion slider 107d, a rotating screw 107e, and a sunshade baffle 107f. One end of the shading component 107 is movably connected to the drive motor 107a. The drive motor 107a is electrically connected to the solar panel 109 through a rectifier 107a-1. The shading component 107 is provided with a motion slide rail 107b. The motion slide rail 107b is provided with a connecting bracket 107c. The lower end of the connecting bracket 107c is provided with a motion slider 107d. The rotating screw 107e is movably connected to the motion slider 107d. The upper end of the connecting bracket 107c is fixedly connected to the sunshade baffle 107f. The reflective bracket 108 includes a light-collecting reflector 108a and a conversion reflector 108b. The light-collecting reflector 108a and the conversion reflector 108b are arranged inside the reflective bracket 108 and are arranged parallel to each other.

[0037] In this embodiment: the sunlight is reflected by the light-collecting reflector 108a and the conversion reflector 108b on the reflector bracket 108, and the light is reflected to the solar panel 109 for photovoltaic power generation. The internal rectifier 107a-1 drives the drive motor 107a to work, which in turn drives the sunshade 107f to move and help to shade the light.

[0038] The working principle of this invention is as follows: The moving device 200 moves the device to the spraying back plate where the spraying operation is performed. The hydraulic straight arm 201 moves the acquisition component 100 to the back plate position, matching its position with the spraying device. After the acquisition component 100 moves to the working position, and the protective baffle 101 contacts the spraying back plate, the contact angle between the protective baffle 101 and the back plate is not necessarily perpendicular. The hydraulic straight arm 201 is used for position adjustment. At the same time, the adjusting base 202 can adjust the position of the acquisition component 100 when the hydraulic straight arm 202 moves. When the protective baffle 101 contacts the back plate, the different contact positions of the protective baffle 101 will cause the internal balance connecting plate 101d to be in an offset state. When the balance connecting plate 101d is in an offset state, the positioning retaining ring 104 is connected to the positioning hole 101f through the linkage connecting column 104a. When the -1 is connected to each other, the identification probe 102 will also be in an offset state. The connecting sleeve 105 and the telescopic connecting rod 106 cannot move, triggering the ground personnel to make adjustments. When it is at a perpendicular angle to the back plate, the identification probe 102 will be in a state parallel to the back plate. The correction bracket 101f will be in a non-triggered state. In the parallel state, the positioning ring 104 will separate from the limiting arc groove 105b, allowing the telescopic connecting rod 106 to move in the connecting sleeve 105. Without the limiting of the positioning ring 104, when the hydraulic straight arm 202 moves, the telescopic connecting rod 106 can move through the guide straight groove 106a and the guide connecting block 106b. Under the action of the receiving straight groove 105a, the telescopic connecting rod 106 is received into the connecting sleeve 105. The device is started and the identification work is performed by the mutual contact of the trigger base 105c and the contact switch 106c. The system uses a recognition camera 103 for identification and can work in conjunction with an auxiliary lighting lamp 103a to improve image recognition. It records data based on the pre-input sprayed image shape, converts the recorded graphic information into digital information, and performs comparison. The light from the auxiliary lighting lamp 103a illuminates the paint and backing plate. Because the paint application area is smoother than the backing plate, the backing plate experiences diffuse reflection, while the paint application area experiences specular reflection, allowing for better light collection. The recognition camera 103 reads the shape of the reflected light spot and identifies the image. When the preset graphic shape differs from the light spot shape, a mismatch is detected, triggering an alarm signal. When the preset graphic shape matches the light spot shape, no alarm is triggered, and the system continues operating. Furthermore, when the sunlight is strong, the external light will be reflected by the light-collecting reflector 108a and the conversion reflector 108b on the reflector bracket 108. The reflected light will then shine onto the solar panel 109, which will generate photovoltaic power. At the same time, the drive motor 107a connected to the rectifier 107a-1 drives the rotating screw 107e, which in turn moves the connecting bracket 107c on the motion slide rail 107b, causing the sunshade 107f to extend outward for shading. While the sunshade 107f is shading, the auxiliary lighting 103a can also help the identification camera 103 to perform identification. After the work is completed, the device can be reset by ground personnel.

[0039] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novel teachings and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0040] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments may be described, i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention.

[0041] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine task in design, manufacturing, and production without requiring extensive experimentation.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A spray painting image recognition device resistant to strong sunlight interference, characterized in that: include, A data acquisition component (100) includes a data acquisition panel (102), a light-shielding component (107), a reflective bracket (108), and a solar panel (109). One end of the data acquisition component (100) is movably connected to the data acquisition panel (102). The data acquisition component (100) is provided with a light-shielding component (107). One end of the light-shielding component (107) is fixedly mounted with a reflective bracket (108). The solar panel (109) is disposed within the reflective bracket (108). A mobile device (200) includes a hydraulic straight arm (201), an adjusting base (202), and a sliding rail (203). The adjusting base (202) is movably mounted on the mobile device (200), and the hydraulic straight arm (201) is movably connected to the adjusting base (202). The hydraulic straight arm (201) is movably connected to the acquisition component (100) through the sliding rail (203). The acquisition component (100) further includes a protective baffle (101), a positioning ring (104), a connecting sleeve (105), and a telescopic connecting rod (106). The protective baffle (101) is movably connected to the acquisition component (100). A positioning ring (104) is fixedly installed at one end of the acquisition panel (102). A linkage column (104a) is fixedly connected to the positioning ring (104). A connecting sleeve (105) is movably connected to the acquisition panel (102). A telescopic connecting rod (106) is movably connected to one end of the connecting sleeve (105). The protective baffle (101) includes a positioning slot (101a), an elastic sleeve (101b), and a spring connecting post (101c). The positioning slot (101a) is provided inside the protective baffle (101). Two elastic sleeves (101b) symmetrical about the positioning slot (101a) are fixedly installed on the protective baffle (101). The spring connecting post (101c) is movably installed inside the elastic sleeve (101b). A balance plate (101d) is provided at one end of the spring connecting post (101c). The balance plate (101d) is movably connected to the acquisition component (100) through a balance shaft (101e). A correction bracket (101f) is provided on the balance plate (101d). A connection positioning hole (101f-1) is reserved on the correction bracket (101f). The connecting sleeve (105) includes a receiving straight groove (105a), a limiting arc groove (105b), a trigger base (105c), and a contact switch (105d). The receiving straight groove (105a) is provided inside the connecting sleeve (105), and the limiting arc groove (105b) is provided on the connecting sleeve (105). The trigger base (105c) is fixedly connected inside the connecting sleeve (105), and the contact switch (105d) is provided inside the trigger base (105c). The connecting sleeve (105) is movably connected to the telescopic connecting rod (106) via the receiving straight groove (105a). The telescopic connecting rod (106) includes a guide straight groove (106a), a guide connecting block (106b), and a contact base (106c). The telescopic connecting rod (106) has a guide straight groove (106a) inside, and a guide connecting block (106b) is fixedly installed inside the guide straight groove (106a). A contact base (106c) is provided on the guide connecting block (106b). The shading assembly (107) includes a drive motor (107a), a sliding rail (107b), a connecting bracket (107c), a sliding block (107d), a rotating screw (107e), and a sunshade (107f). One end of the shading assembly (107) is movably connected to the drive motor (107a). The drive motor (107a) is electrically connected to the solar panel (109) through a rectifier (107a-1). The shading assembly (107) is provided with a sliding rail (107b). The sliding rail (107b) is provided with a connecting bracket (107c). The lower end of the connecting bracket (107c) is provided with a sliding block (107d). The sliding block (107d) is movably connected to a rotating screw (107e). The upper end of the connecting bracket (107c) is fixedly connected to the sunshade (107f). The reflective bracket (108) includes a light-collecting reflector (108a) and a conversion reflector (108b). The light-collecting reflector (108a) and the conversion reflector (108b) are arranged inside the reflective bracket (108) and are arranged parallel to each other.

2. The spray painting image recognition device resistant to strong sunlight interference as described in claim 1, characterized in that: The protective baffle (101) is symmetrically arranged with respect to the acquisition panel (102) in two places. The acquisition panel (102) is movably mounted with an identification camera (103). Two auxiliary lights (103a) are symmetrically arranged on the outside of the identification camera (103).

3. An identification system, characterized in that: Including the spraying image recognition device according to any one of claims 1 to 2, including The recognition camera (103) is used to observe the structure of the sprayed image, recognize it in conjunction with the pre-input image, and perform comparison work through the comparison algorithm in the internal processing module; The processing module is used to input the digital information of the preset graphic and perform image comparison through the built-in comparison unit. An auxiliary lighting lamp (103a) is used to provide auxiliary lighting to assist the recognition camera (103) in performing image recognition.

4. The identification system as described in claim 3, characterized in that: The comparison algorithm is as follows: Data is recorded according to the pre-input sprayed image shape. The system translates the recorded graphic information into digital information and performs comparison work. The preset graphic data is internally decomposed into feature L and feature R according to the left and right structure. The data collected by the recognition camera (103) is also decomposed into feature l and feature r according to the left and right structure. By comparing feature L with feature l, feature R with feature r, it is determined whether the collected graphic matches the preset graphic, and thus the comparison processing is performed. The light generated by the auxiliary lighting lamp (103a) shines on the paint and the back plate. Since the paint application area is smoother than the back plate, the back plate produces diffuse reflection after being illuminated, while the paint application area produces specular reflection, which can better collect light. The shape of the light reflection spot is read by the recognition camera (103) and the image is recognized. When the preset graphic shape is different from the light spot shape, the collected data does not match the preset data and an alarm signal is generated to prompt. When the preset graphic shape is the same as the light spot shape, no prompt is given and the work continues.

Images