CN112710231A - Visual detection system and detection method of luminous keyboard - Google Patents
Visual detection system and detection method of luminous keyboard Download PDFInfo
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- CN112710231A CN112710231A CN202011473009.6A CN202011473009A CN112710231A CN 112710231 A CN112710231 A CN 112710231A CN 202011473009 A CN202011473009 A CN 202011473009A CN 112710231 A CN112710231 A CN 112710231A
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- 230000000007 visual effect Effects 0.000 title claims abstract description 11
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- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 238000010191 image analysis Methods 0.000 claims description 12
- 238000011179 visual inspection Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 8
- 238000004458 analytical method Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000007689 inspection Methods 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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Abstract
The invention discloses a visual detection system of a luminous keyboard, which comprises a box body, wherein a detection table for placing the luminous keyboard is arranged in the box body, and a power supply module for supplying power to the luminous keyboard is arranged on the detection table. The device also comprises an image acquisition assembly, an optical assembly and a controller, wherein the image acquisition assembly and the optical assembly are arranged in the box body, and the controller is positioned outside the box body. The image acquisition assembly comprises a CCD camera positioned above the detection table, and the CCD camera moves in a cross shape under the action of the driving assembly. The optical assembly comprises a reflector arranged on the detection table, the reflector is positioned around the light-emitting keyboard, the angle of the reflector is adjustable under the action of the angle adjusting assembly, the mirror surface of the reflector and the light-emitting keyboard form an obtuse angle, and the reflector reflects the side surface of the light-emitting keyboard to the working range of the CCD camera. The controller is in communication connection with the CCD camera, the driving assembly and the angle adjusting assembly and is used for receiving the shot pictures of the CCD camera and outputting a detection result. I disclose a detection method based on this system. Saving cost and improving efficiency.
Description
Technical Field
The invention relates to the technical field of visual detection, in particular to a visual detection system and a visual detection method of a luminous keyboard.
Background
With the development of science and technology, computers have been widely used in daily life such as office, study, entertainment, etc., and become indispensable electronic products, and a keyboard, as an input device, is an indispensable external device in computer equipment. The common keyboard generally comprises more than 100 keys, different types of keyboards comprise different types of components, the common keyboard component comprises a PCB (printed circuit board), a positioning plate, a keycap, scissor legs, a palace column and the like, the keyboard components respectively comprise a plurality of tiny structures such as buckles, bumps and the like for connection, and in the production and assembly process, if the tiny mechanisms such as the buckles, the bumps and the like have the bad conditions that the size does not accord with the specified range, the omission and the like, the quality of the whole keyboard in the later period can be influenced. Traditional visual detection can only be to two-dimensional plane keyboard, can only detect a face of luminous keyboard, to other sides, need add CCD camera or upset keyboard, wastes time and energy, has improved the cost of enterprise.
Disclosure of Invention
In order to overcome the above disadvantages, the present invention provides a visual inspection system for a light-emitting keyboard, which can achieve synchronous inspection of the front and side surfaces of the light-emitting keyboard by using a CCD camera, thereby saving cost and improving efficiency.
In order to achieve the above purposes, the invention adopts the technical scheme that: visual detection system of luminous keyboard, the power distribution box comprises a box body, be provided with the detection platform that supplies luminous keyboard to place in the box, it is provided with the power module for luminous keyboard power supply to detect bench, its characterized in that: the optical component is arranged in the box body, and the optical component is arranged in the box body;
the image acquisition assembly comprises a CCD camera positioned above the detection table, and the CCD camera moves in a cross shape under the action of the driving assembly;
the optical assembly comprises a reflector arranged on the detection table, the reflector is positioned around the light-emitting keyboard, the angle of the reflector can be adjusted under the action of the angle adjusting assembly, an obtuse angle is formed between the mirror surface of the reflector and the light-emitting keyboard, and the reflector reflects the side surface of the light-emitting keyboard to the working range of the CCD camera;
the controller is in communication connection with the CCD camera, the driving assembly and the angle adjusting assembly and is used for receiving the shot pictures of the CCD camera and outputting a detection result.
The invention has the beneficial effects that: the transmission direction of the light emitted by the side face of the light-emitting keyboard is adjusted through the plurality of reflectors, so that the CCD camera can collect images of the side face of the light-emitting keyboard. The CCD camera can also directly collect the image on the front surface of the luminous keyboard, and the detection system realizes the synchronous detection of the front surface and the side surface of the luminous keyboard, thereby saving the cost and improving the efficiency.
The controller comprises a main control module, an image analysis module and a display module, wherein the main control module is in communication connection with the driving module and the angle adjusting module and is used for controlling the position of the CCD camera and the angle of the reflector, the image analysis module is used for receiving a shot picture of the CCD camera and analyzing and judging the picture, and the display module is in communication connection with the image analysis module and is used for displaying an analysis result of the image analysis module.
Further, the angle adjusting assembly comprises a support and an electric telescopic rod, the support is fixed on the detection table, the reflector is rotatably connected with the support, one end of the electric telescopic rod is hinged to the detection table, and the other end of the electric telescopic rod is hinged to the reflector. The reflector is pushed to rotate relative to the support through the stretching of the electric telescopic rod, and the angle of the reflector is adjusted.
Furthermore, a rotating shaft is fixed on the support, and the reflector can rotate around the rotating shaft.
Further, the driving assembly comprises a first lead screw moving device and a second lead screw moving device, the second lead screw moving device is fixedly connected with the first lead screw moving device and moves along the X direction under the action of the first lead screw moving device, and the CCD camera is fixedly connected with the second lead screw moving device and moves along the Y direction under the action of the second lead screw moving device. The CCD camera can move to the optimal position according to the size of the luminous keyboard to photograph the luminous keyboard.
The invention also provides a visual detection method of the light-emitting keyboard, which can realize synchronous detection of the front side and the side of the light-emitting keyboard through one CCD camera, save the cost and improve the efficiency.
In order to achieve the above purposes, the invention adopts the technical scheme that: the visual detection method of the luminous keyboard is characterized in that: the method comprises the following steps:
and 4, comparing and judging the brightness value, the chromatic value and the offset of the shot picture of the CCD by the controller.
The transmission direction of the light emitted by the side face of the light-emitting keyboard is adjusted through the plurality of reflectors, so that the CCD camera can collect images of the side face of the light-emitting keyboard. The CCD camera can also directly collect the image on the front surface of the luminous keyboard, and the detection system realizes the synchronous detection of the front surface and the side surface of the luminous keyboard, thereby saving the cost and improving the efficiency.
Further, in step 2, the angle of the mirror is adjusted until the reflected light path of the mirror is vertically upward.
Further, in the step 3, the CCD camera is first moved to the center position of the light-emitting keyboard, and a front photograph of the light-emitting keyboard is taken; and moving the CCD camera to be right above a reflecting light path of the reflector to shoot a side picture of the luminous keyboard. For a light-emitting keyboard with a large size, a plurality of pictures can be taken through a CCD camera for analysis.
Further, the CCD camera is located at the center of the light-emitting keyboard, in step 2, the angle of the reflector is adjusted until the reflected light path of the reflector faces the center of the CCD camera, and one picture in step 3 includes both the front image and the side image of the light-emitting keyboard. Aiming at the light-emitting keyboard with smaller size, the side images of the light-emitting keyboard can be simultaneously reflected to the front image shooting range of the CCD camera through the angle adjustment of the reflector for analysis.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural view of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure:
the device comprises a box body 1, a detection table 2, a light-emitting keyboard 3, a controller 4, a CCD camera 5, a reflector 6, a support 7, an electric telescopic rod 8, a first screw rod moving device 9 and a second screw rod moving device 10.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.
Example 1
Referring to the attached drawings 1-2, the visual inspection system for the luminous keyboard comprises a box body 1, wherein an inspection table 2 for placing the luminous keyboard 3 is arranged in the box body 1, and a power supply module for supplying power to the luminous keyboard 3 is arranged on the inspection table 2. The side wall of the box body 1 is embedded with black flannelette, so that the shading performance is improved.
The device also comprises an image acquisition component and an optical component which are arranged in the box body 1, and a controller 4 which is positioned outside the box body 1. The image acquisition assembly comprises a CCD camera 5 positioned above the detection table 2, and the CCD camera 5 moves in a cross shape under the action of the driving assembly. The optical assembly comprises a reflector 6 arranged on the detection table 2, the reflector 6 is located around the light-emitting keyboard 3, the angle of the reflector 6 is adjustable under the action of an angle adjusting assembly, the mirror surface of the reflector 6 and the light-emitting keyboard 3 form an obtuse angle, and the reflector 6 reflects the side surface of the light-emitting keyboard 3 to the working range of the CCD camera 5. The controller 4 is in communication connection with the CCD camera 5, the driving assembly and the angle adjusting assembly and is used for receiving the shot pictures of the CCD camera 5 and outputting a detection result.
The propagation direction of the light emitted from the side of the light-emitting keyboard 3 is adjusted by the plurality of reflecting mirrors 6, so that the CCD camera 5 can capture an image of the side of the light-emitting keyboard 3. The CCD camera 5 can also directly collect the front image of the luminous keyboard 3, and the detection system realizes the synchronous detection of the front surface and the side surface of the luminous keyboard 3, thereby saving the cost and improving the efficiency.
The controller 4 comprises a main control module, an image analysis module and a display module, wherein the main control module is in communication connection with the driving module and the angle adjusting module and used for controlling the position of the CCD camera 5 and the angle of the reflector 6, the image analysis module is used for receiving a shot picture of the CCD camera 5 and analyzing and judging the picture, and the display module is in communication connection with the image analysis module and used for displaying an analysis result of the image analysis module.
The angle adjusting assembly comprises a support 7 and an electric telescopic rod 8, the support 7 is fixed on the detection table 2, the reflector 6 is rotatably connected with the support 7, one end of the electric telescopic rod 8 is hinged to the detection table 2, and the other end of the electric telescopic rod is hinged to the reflector 6. The reflector 6 is pushed to rotate relative to the bracket 7 through the extension and retraction of the electric telescopic rod 8, and the angle of the reflector 6 is adjusted. A rotating shaft is fixed on the support 7, and the reflector 6 can rotate around the rotating shaft.
The driving assembly comprises a first lead screw moving device 9 and a second lead screw moving device 10, the second lead screw moving device 10 is fixedly connected with the first lead screw moving device 9 and moves along the X direction under the action of the first lead screw moving device 9, and the CCD camera 5 is fixedly connected with the second lead screw moving device 10 and moves along the Y direction under the action of the second lead screw moving device 10. The CCD camera 5 can move to the optimum position according to the size of the light-emitting keyboard 3 to photograph the light-emitting keyboard 3. The second lead screw moving device 10 and the first lead screw moving device 9 are conventional technologies, and are not described herein again.
Example 2
Referring to fig. 3, the visual inspection method of the light-emitting keyboard of the present invention comprises the following steps:
and 4, comparing and judging the brightness value, the chromatic value and the offset of the shot picture of the CCD by the controller 4.
The propagation direction of the light emitted from the side of the light-emitting keyboard 3 is adjusted by the plurality of reflecting mirrors 6, so that the CCD camera 5 can capture an image of the side of the light-emitting keyboard 3. The CCD camera 5 can also directly collect the front image of the luminous keyboard 3, and the detection system realizes the synchronous detection of the front surface and the side surface of the luminous keyboard 3, thereby saving the cost and improving the efficiency.
In step 2, the angle of the reflecting mirror 6 is adjusted until the reflecting light path of the reflecting mirror 6 is vertically upward. In the step 3, firstly, the CCD camera 5 is moved to the center position of the light-emitting keyboard 3, and a front photograph of the light-emitting keyboard 3 is taken; and then the CCD camera 5 is moved to the position right above the reflecting light path of the reflector 6 to shoot the side picture of the luminous keyboard 3. For a light emitting keyboard 3 with a large size, a plurality of pictures can be taken by the CCD camera 5 for analysis.
The CCD camera 5 is located at the center of the light-emitting keyboard 3, in the step 2, the angle of the reflector 6 is adjusted until the reflection light path of the reflector 6 faces the center of the CCD camera 5, and a photo in the step 3 simultaneously comprises a front image and a side image of the light-emitting keyboard 3. For the light-emitting keyboard 3 with a small size, the side images of the light-emitting keyboard 3 can be simultaneously reflected to the front image shooting range of the CCD camera 5 through the angle adjustment of the reflector 6 for analysis.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the present invention is not limited thereto, and any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (9)
1. Visual detection system of luminous keyboard, including box (1), be provided with in box (1) and supply luminous keyboard to place examine test table (2), it is provided with the power module for luminous keyboard (3) power supply, its characterized in that to examine on the test table: the device also comprises an image acquisition assembly arranged in the box body (1), an optical assembly and a controller (4) positioned outside the box body;
the image acquisition assembly comprises a CCD camera (5) positioned above the detection table (2), and the CCD camera (5) moves in a cross shape under the action of the driving assembly;
the optical assembly comprises a reflector (6) arranged on the detection table (2), the reflector (6) is positioned around the light-emitting keyboard (3), the angle of the reflector (6) can be adjusted under the action of the angle adjusting assembly, the mirror surface of the reflector (6) and the light-emitting keyboard (3) form an obtuse angle, and the reflector (6) reflects the side surface of the light-emitting keyboard (3) to the working range of the CCD camera (5);
the controller (4) is in communication connection with the CCD camera (5), the driving assembly and the angle adjusting assembly and is used for receiving the shot pictures of the CCD camera (5) and outputting a detection result.
2. The visual inspection system of an illuminated keyboard of claim 1, wherein: the controller (4) comprises a main control module, an image analysis module and a display module, the main control module is in communication connection with the driving module and the angle adjusting module and used for controlling the position of the CCD camera (5) and the angle of the reflector, the image analysis module is used for receiving a shot picture of the CCD camera (5) and analyzing and judging the picture, and the display module is in communication connection with the image analysis module and used for displaying an analysis result of the image analysis module.
3. The visual inspection system of an illuminated keyboard of claim 1, wherein: the angle adjusting assembly comprises a support (7) and an electric telescopic rod (8), the support (7) is fixed on the detection table (2), the reflecting mirror (6) is rotatably connected with the support (7), one end of the electric telescopic rod (8) is hinged to the detection table (2), and the other end of the electric telescopic rod is hinged to the reflecting mirror (6).
4. The visual inspection system of an illuminated keyboard of claim 3, wherein: the rotating shaft is fixed on the support (7), and the reflector (6) can rotate around the rotating shaft.
5. The visual inspection system of an illuminated keyboard of claim 1, wherein: the driving assembly comprises a first lead screw moving device (9) and a second lead screw moving device (10), the second lead screw moving device (10) is fixedly connected with the first lead screw moving device (9) and moves along the X direction under the action of the first lead screw moving device (9), and the CCD camera (5) is fixedly connected with the second lead screw moving device (10) and moves along the Y direction under the action of the second lead screw moving device (10).
6. The visual inspection method of a light-emitting keyboard of claim 1, wherein: the method comprises the following steps:
step 1, placing a luminous keyboard (3) on a detection table (2), and lightening the luminous keyboard through a power supply module;
step 2, adjusting the inclination angle of the reflector (6) to enable the reflector (6) to reflect the side surface of the luminous keyboard (3) to the working range of the CCD camera (5);
step 3, the CCD camera (5) moves to a detection position, shoots the state of the lighted luminous keyboard (3), and transmits the picture to the controller (4);
and 4, comparing and judging the brightness value, the chromatic value and the offset of the shot picture of the CCD camera (5) by the controller (4).
7. The visual inspection method of a light-emitting keyboard of claim 6, wherein: in the step 2, the angle of the reflector (6) is adjusted until the reflection light path of the reflector (6) is vertically upward.
8. The visual inspection method of a light-emitting keyboard of claim 7, wherein: in the step 3, the CCD camera (5) is firstly moved to the central position of the luminous keyboard (3) to shoot a front photo of the luminous keyboard (3); and then the CCD camera (5) is moved right above a reflection light path of the reflector (6) to shoot a side photo of the luminous keyboard (3).
9. The visual inspection method of a light-emitting keyboard of claim 6, wherein: the CCD camera (5) is located at the center of the light-emitting keyboard (3), in the step 2, the angle of the reflector (6) is adjusted until the reflection light path of the reflector (6) faces the center of the CCD camera (5), and a picture in the step 3 simultaneously comprises a front image and a side image of the light-emitting keyboard (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011473009.6A CN112710231A (en) | 2020-12-15 | 2020-12-15 | Visual detection system and detection method of luminous keyboard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011473009.6A CN112710231A (en) | 2020-12-15 | 2020-12-15 | Visual detection system and detection method of luminous keyboard |
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| CN112710231A true CN112710231A (en) | 2021-04-27 |
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| CN202011473009.6A Pending CN112710231A (en) | 2020-12-15 | 2020-12-15 | Visual detection system and detection method of luminous keyboard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113984781A (en) * | 2021-12-29 | 2022-01-28 | 光子(深圳)精密科技有限公司 | PCB automatic detection system and method |
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Application publication date: 20210427 |
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