CN114353703A - Method and device for simply measuring splicing flatness of side light mode LED screen - Google Patents
Method and device for simply measuring splicing flatness of side light mode LED screen Download PDFInfo
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- CN114353703A CN114353703A CN202210013194.3A CN202210013194A CN114353703A CN 114353703 A CN114353703 A CN 114353703A CN 202210013194 A CN202210013194 A CN 202210013194A CN 114353703 A CN114353703 A CN 114353703A
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Abstract
The invention relates to a method and a device for simply measuring the splicing flatness of an LED screen in a lateral light mode; the measurement method comprises the following steps: the method comprises the steps that an image detector is arranged on the outer side of an LED screen, the image detector is rotated under the condition that the LED screen is dark, the optical axis of the image detector is guaranteed to be always located in the plane where the front surface of the LED screen is located, and the side image of the LED screen is collected; judging the flatness of the screen according to the projection size of the LED screen, if no projection is generated, the flatness of the LED screen is high, otherwise, debugging the flatness of the LED screen; in the measuring device, a fixed rod is fixed at the edge of a screen mounting rack through a U-shaped fixer, and an image detector is positioned outside an LED screen and connected with the fixed rod through a hinged joint; the optical axis of the image detector is positioned in the plane of the front surface of the LED screen. The invention can realize the measurement of the splicing flatness of the LED screen, thereby reducing the problems of poor flatness quality and the like of the spliced screen, and the testing device has a simple structure.
Description
Technical Field
The invention belongs to the technical field of LED display, and relates to a method and a device for simply measuring the splicing flatness of an LED screen in a lateral light mode.
Background
The LED display screen is usually assembled and spliced by a plurality of LED modules, and the problem of uneven gaps or splicing surfaces of different degrees can occur between the spliced screens, so that the quality of the spliced flatness is poor, and flatness detection needs to be performed on spliced product modules. The existing flatness measurement method is generally carried out by using a plug gauge, and the method not only easily scratches the surface of a screen during measurement, but also cannot accurately grasp the actual splicing condition; in addition, the method can only use manpower to measure at present, and is long in time consumption and complicated in calculation method when a large amount of work is carried out. The display screen is installed on the mounting bracket mostly when the LED screen is spliced at present, the position of the display screen needs to be continuously adjusted in the mode, direct connection or fixed relation does not exist between the adjacent display screens, the LED screen is completely combined by means of fixing of the fixing frame, the splicing flatness of the LED screen is not guaranteed easily due to the combined mode, and the watching experience of a user on the LED screen is influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a simple method for measuring the splicing flatness of an LED screen in a lateral light mode, and the method is simple and convenient to operate and cannot scratch the surface of the screen.
In order to solve the technical problem, the simple method for measuring the splicing flatness of the side light type LED screen comprises the following steps: arranging an image detector outside the LED screen, rotating the image detector under the condition that the LED screen is dark, and collecting a side image of the LED screen; the optical axis of the image detector is always positioned in the plane of the front surface of the LED screen in the rotating process; and judging the flatness of the screen according to the projection size of the LED screen, if no projection is generated, the flatness of the LED screen is high, otherwise, the flatness of the LED screen needs to be debugged.
The image detector is preferably an infrared light collector; and under the condition that the LED screen is blank, the infrared light collector is turned on, so that light beams emitted by the infrared light collector irradiate the LED screen, and the infrared light collector is rotated to collect the side images of the LED screen.
And respectively collecting the side images of the LED screen when the infrared light collector rotates to form included angles of 30 degrees, 45 degrees and 60 degrees with the side surface of the LED screen, measuring and recording the projection size of the LED screen, and judging the flatness of the screen according to the projection size of the LED screen.
The infrared light acquisition instrument slowly rotates and simultaneously continuously acquires lateral images of the LED screen, the projection size of the LED screen is observed, and the flatness of the screen is judged according to the projection size of the LED screen.
The second technical problem to be solved by the invention is to provide a device for realizing the simple method for measuring the splicing flatness of the lateral light type LED screen, and the device can adopt the following two technical schemes:
technical scheme one
The device for realizing the simple measuring method of the splicing flatness of the side light type LED screen comprises a fixed rod, a U-shaped fixer, an angle ruler and an image detector; the U-shaped fixer comprises a U-shaped structure frame, a first wrench and a second wrench; the U-shaped structure frame is clamped at the edge of the screen mounting frame, the first wrench is in threaded connection with one side wall of the U-shaped structure frame, the second wrench is in threaded connection with a bottom plate of the U-shaped structure frame, and the U-shaped structure frame and the edge of the screen mounting frame can be clamped and fixed together by rotating the first wrench; the fixed rod is arranged on the inner side of the U-shaped structure frame, and the fixed rod can be tightly pressed and fixed on the side surface of the screen mounting frame by rotating the second wrench; the image detector is positioned on the outer side of the LED screen and is connected with the fixed rod through a hinged joint; the image detector can rotate in a vertical plane, and an optical axis of the image detector is always positioned in a plane where the front surface of the LED screen is positioned in the rotating process; the angle ruler is fixed on the fixed rod, and the rotation center of the image detector coincides with the circle center of the angle ruler.
The device for realizing the simple measuring method of the splicing flatness of the side light type LED screen comprises a fixed rod, a U-shaped fixer and an image detector; the U-shaped fixer comprises a U-shaped structure frame and a first wrench; the U-shaped structure frame is clamped at the edge of the screen mounting frame, the first wrench is in threaded connection with one side wall of the U-shaped structure frame, and the U-shaped structure frame and the edge of the screen mounting frame can be clamped and fixed together by rotating the first wrench; the fixed rod is arranged on the inner side of the U-shaped structure frame and fixed together with the U-shaped structure frame; the image detector is positioned on the outer side of the LED screen and is connected with the fixed rod through a hinged joint; the image detector can rotate in a vertical plane, and an optical axis of the image detector is always positioned in a plane where the front surface of the LED screen is positioned in the rotating process.
The fixing rod can be in a quadrangular prism shape, a cylindrical shape or other cylindrical shapes with two parallel planes.
The method is used for measuring the splicing flatness of the LED screen, and the test result can be used for adjusting the spliced screen, so that the problems of poor flatness quality and the like of the spliced screen are solved, and the display effect of the LED screen is ensured; adopt infrared collection appearance projection light source form to be light beam rather than light, completion screen concatenation roughness that can be better detects, secondly adopt its infrared spectrum that forms of infrared collection appearance can be convenient for the later stage to rectify the screen concatenation unevenness. The testing device is simple in structure and convenient to use.
Description of the drawings:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of a simple device for measuring the splicing flatness of a side-view light-mode LED screen according to embodiment 1 of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic view of a simple measuring device for flatness rotating light sources for splicing side-view LED screens in embodiment 2 of the present invention.
In the figure: 1. the screen mounting frame comprises a screen mounting frame, 2. a fixing clamp, 31. a fixing rod, 321. a U-shaped structure frame, 322. a first wrench, 323. a second wrench; 33. angle ruler, 34 image detector.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the following drawings and examples, it being understood that the specific embodiments described herein are illustrative of the invention only and are not limiting. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meanings of the above terms in the present invention can be specifically understood in specific cases by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," or "beneath" a second feature includes the first feature being directly under or obliquely below the second feature, or simply means that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Example 1
As shown in fig. 1-2, the simple device for measuring the splicing flatness of the side-view light type LED screen of the present invention includes a fixing rod 31, a U-shaped fixer, an angle ruler 33, and an image detector 34.
The LED screen is formed by splicing a plurality of display units, and each display unit is fixedly arranged on the screen mounting frame 1; the screen mounting 1 comprises a plurality of longitudinal bars and transverse bars which are fixed together by fixing clips 2.
The U-shaped fixer comprises a U-shaped structure frame 321, a first wrench 322 and a second wrench 323; the U-shaped structure frame 321 is clamped at the edge of the screen mounting frame 1, the first wrench 322 is in threaded connection with one side wall of the U-shaped structure frame 321, the second wrench 323 is in threaded connection with a bottom plate of the U-shaped structure frame 321, and the U-shaped structure frame and the edge of the screen mounting frame 1 can be clamped and fixed together by rotating the first wrench; the fixing rod 31 is arranged at the inner side of the U-shaped structure frame 321, and the fixing rod 31 can be tightly pressed and fixed on the side surface of the screen mounting rack 1 by rotating the second wrench; the image detector 34 is positioned above the left upper corner or the right upper corner of the LED screen, is connected with the fixed rod 31 through a hinged joint, can rotate in a vertical plane, and the optical axis of the lens of the image detector is always positioned in the plane of the front surface of the LED screen in the rotating process; the angle ruler 33 is fixed on the fixing rod 31, and the rotation center of the image detector coincides with the center of the angle ruler 33.
The fixing rod 31 may be a quadrangular prism, a cylinder or other column with two parallel planes.
The image detector can adopt an infrared acquisition instrument or other equipment capable of acquiring images on the side face of the LED screen, and preferably adopts the infrared acquisition instrument.
As shown in fig. 1, taking an infrared collector as an example of an image detector, the method for simply measuring the splicing flatness of the side-light LED screen in this embodiment is as follows:
the method comprises the following steps: under the condition that the LED screen is dark, the infrared light collector is turned on, so that light beams emitted by the infrared light collector irradiate the side face of the LED screen;
step two: rotating the infrared light collector to form a 30-degree included angle with the fixed rod 31, collecting an image of the side face of the LED screen, and measuring and recording the projection size of the LED screen;
step three: rotating the infrared light collector to form a 45-degree included angle with the fixed rod 31, collecting an image of the side face of the LED screen, and measuring and recording the projection size of the LED screen;
step four: rotating the infrared light collector to form a 60-degree included angle with the fixed rod 31, collecting an image of the side face of the LED screen, and measuring and recording the projection size of the LED screen;
step five: and recording the projection size of the LED screen according to each angle to judge the flatness of the LED screen, wherein if no projection exists, the flatness of the LED screen is high, otherwise, the flatness of the LED screen needs to be debugged.
Example 2
As shown in fig. 3, the simple device for measuring the splicing flatness of the side-view LED screen of the present invention includes a fixing rod 31, a U-shaped holder, and an image detector 34.
The LED screen is formed by splicing a plurality of display units, and each display unit is fixedly arranged on the screen mounting frame 1; the screen mount 1 is composed of a plurality of longitudinal beams and cross beams fixed together by fixing clips 2.
The U-shaped fixer comprises a U-shaped structure frame 321 and a first wrench 322; the U-shaped structure frame 321 is clamped at the edge of the screen mounting frame 1, the first wrench 322 is in threaded connection with one side wall of the U-shaped structure frame 321, and the U-shaped structure frame and the screen mounting frame 1 can be clamped and fixed together by rotating the first wrench; the fixing rod 31 is arranged on the inner side of the U-shaped structure frame 321 and is welded and fixed with the U-shaped structure frame 321; the image detector 34 is located above the upper left corner or the upper right corner of the LED screen and connected with the fixing rod 31 through a hinged joint, the image detector can rotate in a vertical plane, and the optical axis of the lens of the image detector is always located in the plane of the front surface of the LED screen in the rotating process.
The fixing rod 31 may be a quadrangular prism, a cylinder or other column with two parallel planes.
The image detector can adopt an infrared acquisition instrument or other equipment capable of acquiring an LED screen image, and preferably adopts an infrared acquisition instrument.
Taking an infrared acquisition instrument as an example of an image detector, the lateral light mode LED screen splicing flatness simple measurement method of the embodiment is as follows:
the method comprises the following steps: under the condition that the LED screen is dark, the infrared light collector is turned on, so that light beams emitted by the infrared light collector irradiate the side face of the LED screen;
step two: the method comprises the following steps of (1) continuously collecting side images of an LED screen while slowly rotating an infrared light collector, and observing the projection size of the LED screen;
step three: and judging the flatness of the screen according to the projection size of the LED screen, if no projection is generated, the flatness of the LED screen is high, otherwise, the flatness of the LED screen needs to be debugged.
The present invention is not limited to the above-mentioned embodiments, and the image detector may be disposed above, below, on the left side or on the right side of the screen mounting frame 1, as long as the optical axis of the lens is in the plane of the front surface of the LED screen. Similarly, the simple measuring device for the splicing flatness of the side light type LED screen is not limited to the structure, and can be reasonably foreseen, and technicians in the field can also design various simple deformation structural forms.
Claims (7)
1. A simple measuring method for the splicing flatness of a lateral light mode LED screen is characterized by comprising the following steps: arranging an image detector outside the LED screen, rotating the image detector under the condition that the LED screen is dark, and collecting a side image of the LED screen; the optical axis of the image detector is always positioned in the plane of the front surface of the LED screen in the rotating process; and judging the flatness of the screen according to the projection size of the LED screen, if no projection is generated, the flatness of the LED screen is high, otherwise, the flatness of the LED screen needs to be debugged.
2. The method for easily measuring the splicing flatness of the side-light LED screens according to claim 1, wherein the image detector is preferably an infrared light collector.
3. The simple method for measuring the splicing flatness of the side light type LED screen according to claim 2, is characterized in that the side images of the LED screen are collected when the infrared light collector rotates to form included angles of 30 degrees, 45 degrees and 60 degrees with the side surface of the LED screen, the projection size of the LED screen is measured and recorded, and the flatness of the screen is judged according to the projection size of the LED screen.
4. The simple measuring method for the splicing flatness of the side light type LED screen according to claim 2, characterized in that the infrared light collector is slowly rotated while continuously collecting the side images of the LED screen, the projection size of the LED screen is observed, and the flatness of the screen is judged according to the projection size of the LED screen.
5. A device for realizing the simple measuring method of the splicing flatness of the side light type LED screen according to claim 3; the device is characterized in that the device for simply measuring the splicing flatness of the lateral light type LED screen comprises a fixed rod (31), a U-shaped fixer, an angle ruler (33) and an image detector (34); the U-shaped fixer comprises a U-shaped structure frame (321), a first wrench (322) and a second wrench (323); the U-shaped structure frame (321) is clamped at the edge of the screen mounting frame (1), a first wrench (322) is in threaded connection with one side wall of the U-shaped structure frame (321), a second wrench (323) is in threaded connection with a bottom plate of the U-shaped structure frame (321), and the U-shaped structure frame and the edge of the screen mounting frame (1) can be clamped and fixed together by rotating the first wrench; the fixing rod (31) is arranged on the inner side of the U-shaped structure frame (321), and the fixing rod (31) can be pressed and fixed on the side surface of the screen mounting frame (1) by rotating the second wrench; the image detector (34) is positioned outside the LED screen and is connected with the fixed rod (31) through a hinged joint; the image detector (34) can rotate in a vertical plane, and the optical axis of the image detector is always positioned in the plane of the front surface of the LED screen in the rotating process; the angle ruler (33) is fixed on the fixing rod (31), and the rotation center of the image detector is superposed with the circle center of the angle ruler (33).
6. A device for realizing the simple method for measuring the splicing flatness of the side light type LED screen as claimed in claim 4; the device is characterized by comprising a fixing rod (31), a U-shaped fixer and an image detector (34); the U-shaped fixer comprises a U-shaped structure frame (321) and a first wrench (322); the U-shaped structure frame (321) is clamped at the edge of the screen mounting frame (1), the first wrench (322) is in threaded connection with one side wall of the U-shaped structure frame (321), and the U-shaped structure frame and the edge of the screen mounting frame (1) can be clamped and fixed together by rotating the first wrench; the fixing rod (31) is arranged on the inner side of the U-shaped structure frame (321) and fixed with the U-shaped structure frame (321); the image detector (34) is positioned outside the LED screen and is connected with the fixed rod (31) through a hinged joint; the image detector (34) can rotate in a vertical plane, and the optical axis of the image detector is always positioned in the plane of the front surface of the LED screen in the rotating process.
7. The device for realizing the method for easily measuring the splicing flatness of the lateral light type LED screen according to claim 5 or 6, wherein the fixed rod (31) is in a shape of a quadrangular prism, a cylinder or a cylinder with two parallel planes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210013194.3A CN114353703A (en) | 2022-01-07 | 2022-01-07 | Method and device for simply measuring splicing flatness of side light mode LED screen |
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| CN202210013194.3A CN114353703A (en) | 2022-01-07 | 2022-01-07 | Method and device for simply measuring splicing flatness of side light mode LED screen |
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