Secondary image deviation measuring system

Abstract

The invention provides a secondary image deviation measurement system, and relates to the technical field of measurement. The secondary image deviation measuring system comprises a light source which is arranged on the first side of the glass to be measured and is used for emitting light; the image position obtaining device is arranged on the second side, opposite to the first side, of the glass to be detected, the image position obtaining device and the light source are coaxially arranged, and the light source forms a main image and an auxiliary image on the image position obtaining device through the glass to be detected; the image position obtaining device is used for determining the main image coordinates and the auxiliary image coordinates and obtaining an auxiliary image deviation value according to the main image coordinates and the auxiliary image coordinates. Therefore, the secondary image deviation measurement system provided by the invention can realize automatic identification of the secondary image deviation value quickly and accurately, can realize dynamic measurement, and is high in automation degree, convenient to use and high in measurement accuracy.

Description

Technical Field

[0001] The present application relates to the field of measurement technology, and in particular to a secondary image deviation measurement system. Background Art

[0002] At present, with the rapid development of the automobile industry, the product iteration and update are constantly being updated. With the support of more and more black technologies, the intelligence of vehicles is also constantly improving. The safety performance indicators of the whole vehicle have been raised to a new height. The safety protection role of automobile windshields as key components has also been increasingly valued by the whole society. As one of the important components of the automobile safety system, automobile windshields are no longer just a tool to protect against wind and rain. They are related to the safety of drivers, passengers and pedestrians at any time.

[0003] The car windshield is formed by two pieces of glass attached together, which is prone to secondary image deviation. Secondary image deviation means that when the two surfaces of the glass are not parallel, under certain lighting conditions, when looking at an object through the glass, in addition to the main image (the target object within the visual range), one or more secondary images (commonly known as shadows) will be seen. The angle formed between the secondary image and the main image is called the secondary image deviation angle. When driving at night, the secondary image caused by bright lights is very obvious in the dark background. If the secondary image deviates greatly, the driver will have an illusion, which is prone to traffic accidents.

[0004] In the prior art, the position of the secondary image is mainly observed by placing the primary image at the pole of the polar coordinate system. When the secondary phase deviation of the glass sample is tested manually, the degree of automation is low, and there are errors in the manually marked measurement points, the repeatable measurement accuracy is low, the detection speed is slow, the production efficiency is low, and the production cost is high.

[0005] Therefore, how to provide a secondary image deviation detection device with a high degree of automation becomes an urgent problem to be solved. Summary of the invention

[0006] A technical problem to be solved by the present application is: how to provide a secondary image deviation detection device with a high degree of automation.

[0007] In order to solve the above technical problems, the embodiment of the present application provides a secondary image deviation measurement system, comprising:

[0008] A light source, the light source is arranged on the first side of the glass to be tested and is used to emit light;

[0009] An image acquisition device is provided on a second side of the glass to be tested that is opposite to the first side, the image acquisition device is coaxially arranged with the light source, the light source forms a primary image and a secondary image on the image acquisition device through the glass to be tested, the image acquisition device is used to determine the primary image coordinates and the secondary image coordinates, and obtain a secondary image deviation value according to the primary image coordinates and the secondary image coordinates.

[0010] In this embodiment, the image acquisition device includes a differentiation plate, and the optical axis of the light source is projected at a first position of the differentiation plate;

[0011] When the first position is located at the midpoint of the differentiation plate, the optical axis of the light source is coaxial with the optical axis of the image acquisition device.

[0012] In this embodiment, it also includes:

[0013] A movable device, the light source and / or the image acquisition device being movably connected to the movable device;

[0014] A controller, the controller being connected to the image acquisition device and the movable device, and configured to receive the coordinates of the first position on the differentiation plate, and control the light source and / or the image acquisition device to move on the movable device according to the coordinates of the first position on the differentiation plate;

[0015] When the first position is not located at the midpoint of the differentiation plate, the controller controls the image acquisition device and / or the light source to move on the movable device according to the coordinates of the first position until the first position is located at the midpoint of the differentiation plate.

[0016] In this embodiment, the movable device comprises:

[0017] A light source movable platform, the light source movable platform comprising a first frame, a first guide rail extending along a first direction, a first lead screw extending along a second direction, a first rotating platform and a first pitching platform, the first guide rail being slidably connected with the first lead screw along the first direction, the first rotating platform being rotationally connected with the first lead screw along the extension direction of the first lead screw, the first rotating platform being used to rotate around the second direction, the first rotating platform being provided with the first pitching platform, the first pitching platform being provided with the light source, and the first pitching platform being used to rotate around the first direction;

[0018] There is an angle between the first direction and the second direction.

[0019] In this embodiment, the movable device further comprises:

[0020] An image position device movable platform, the image position device movable platform comprising a second frame, a second guide rail extending along a first direction, a second lead screw extending along a second direction, a second rotating platform and a second pitching platform, the second guide rail is slidably connected to the second lead screw along the first direction, the second lead screw is rotatably connected to the second rotating platform along the second direction, the second rotating platform is provided with the second pitching platform, the second rotating platform is used to rotate along the second direction, the second pitching platform is provided with the image position acquisition device, and the second pitching platform is used to rotate around the first direction;

[0021] There is an angle between the first direction and the second direction.

[0022] In this embodiment, it also includes:

[0023] A panoramic positioning camera is arranged on the first side of the glass to be tested, and is used to photograph the glass to be tested and obtain the coordinates of the points to be tested on the glass to be tested. The panoramic positioning camera is connected to the controller to send the coordinates of the points to be tested to the controller. The controller controls the light source to move on the light source movable platform according to the position of the points to be tested until the position of the points to be tested is set corresponding to the position of the light source.

[0024] In this embodiment, it also includes:

[0025] A supporting device is arranged on the second side of the glass to be tested, a third rotating platform is arranged on the supporting device, the panoramic positioning camera is connected to the third rotating platform, and the third rotating platform is used to rotate around the supporting device.

[0026] In this embodiment, it also includes:

[0027] An operating device, the operating device includes a production line extending along a third direction, an adjustable angle platform and a lifting mechanism are arranged on the production line, the first end of the adjustable angle platform along the third direction is rotatably connected to the production line through a rotating shaft, the second end of the adjustable angle platform along the third direction is a free end, the adjustable angle platform has a first surface and a second surface arranged opposite to the first surface, the first surface of the adjustable angle platform is used to place the glass to be tested, one end of the lifting mechanism is connected to the production line near the second end of the adjustable angle platform, and the other end is connected to the second surface of the adjustable angle platform, the lifting mechanism is a retractable structure for lifting the second end of the adjustable angle platform; a stop mechanism is arranged at the first end of the first surface of the adjustable angle platform for blocking the glass to be tested, and a locking mechanism is arranged at the second end of the first surface of the adjustable angle platform for fixing the glass to be tested on the first surface of the adjustable angle platform.

[0028] In this embodiment, the operating device further includes:

[0029] A positioning mechanism, the positioning mechanism is extended in the vertical direction, a first end of the positioning mechanism is fixedly connected to the ground, and a second end of the positioning mechanism is used to connect to the midpoint of the second surface of the adjustable angle platform;

[0030] A driving member is connected to the controller and the lifting mechanism respectively, and the controller is used to control the driving member to drive the lifting mechanism to extend or retract.

[0031] In this embodiment, there are multiple light sources and multiple image acquisition devices, and the multiple light sources correspond one to one with the multiple image acquisition devices.

[0032] Therefore, the secondary image deviation measurement system provided by the present application includes a light source and an image acquisition device, wherein the light source and the image acquisition device are respectively arranged on the first side and the second side of the glass to be tested, and the glass to be tested is placed at a certain angle to the horizontal plane, so that the light emitted by the light source will be refracted through the glass to be tested to the image acquisition device to form an image on the image acquisition device. Since the glass to be tested is a two-layer glass structure, the imaging of the light on the image acquisition device has two types of imaging, namely, a primary image and a secondary image. The image acquisition device is also used to confirm the coordinates of the primary image and the coordinates of the secondary image, and confirm the deviation value of the secondary image relative to the primary image according to the coordinates of the primary image and the coordinates of the secondary image.

[0033] Therefore, the secondary image deviation measurement system provided by the present application can confirm the coordinates of the main image position and the secondary image position through the setting of the image position acquisition device, and confirm the deviation value of the secondary image relative to the main image according to the main image coordinates and the secondary image coordinates, so as to realize the automatic identification of the secondary image deviation value quickly and accurately, realize dynamic measurement, have a high degree of automation, be easy to use, and have high measurement accuracy. It can be applied to factory production lines and can be operated by a single person, which can reduce labor costs for enterprises and improve production efficiency. It can also simulate the driver's state to the greatest extent, improving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 is a schematic diagram of a secondary image deviation measurement system disclosed in an embodiment of the present application;

[0036] Figure 2 is a structural schematic diagram of a secondary image deviation measurement system disclosed in an embodiment of the present application;

[0037] Figure 3 It is a front view of a secondary image deviation measurement system disclosed in an embodiment of the present application;

[0038] Figure 4 It is a side view of a light source movable platform disclosed in an embodiment of the present application;

[0039] Figure 5 It is a side view of a movable platform of an image position device disclosed in an embodiment of the present application;

[0040] Figure 6 It is a partial structural schematic diagram of a secondary image deviation measurement system disclosed in an embodiment of the present application;

[0041] Figure 7 It is a schematic structural diagram of another secondary image deviation measurement system disclosed in an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 1. Secondary image deviation measurement system; 11. Light source; 12. Image acquisition device; 13. Movable device; 131. Light source movable platform; 1311. First frame; 1312. First guide rail; 1313. First lead screw; 1314. First pitch platform; 1315. First rotating platform; 132. Image device movable platform; 1321. Second frame; 1322. Second guide rail; 1323. Second lead screw; 15. Panoramic positioning camera; 16. Support device; 161. Third rotating platform; 17. Running device; 171. Production line; 172. Adjustable angle platform; 173. Lifting mechanism; 174. Locking mechanism; 175. Stop mechanism; 176. Positioning mechanism; 177. Driving member; 178. Rotating shaft; 2. Glass to be tested. DETAILED DESCRIPTION

[0044] The following is a further detailed description of the implementation methods of the present application in conjunction with the accompanying drawings and examples. The detailed descriptions of the following examples and the accompanying drawings are used to exemplarily illustrate the principles of the present application, but cannot be used to limit the scope of the present application. The present application can be implemented in many different forms and is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

[0045] The present application provides these embodiments to make the present application thorough and complete, and to fully express the scope of the present application to those skilled in the art. It should be noted that unless otherwise specifically stated, the relative arrangement of the parts and steps, the composition of the materials, the numerical expressions and the numerical values ​​set forth in these embodiments should be interpreted as being merely exemplary, and not as limiting.

[0046] It should be noted that, in the description of this application, unless otherwise specified, the meaning of "multiple" is greater than or equal to two; the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating the orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0047] In addition, the words "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. "Vertical" does not mean vertical in the strict sense, but is within the tolerance range. "Parallel" does not mean parallel in the strict sense, but is within the tolerance range. "Include" or "comprising" and similar words mean that the elements before the word include the elements listed after the word, and do not exclude the possibility of including other elements.

[0048] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0049] All terms used in this application have the same meaning as those understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries, such as general dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology, and should not be interpreted in an idealized or extremely formal sense, unless explicitly defined herein.

[0050] In the related art, the windshield of a car is formed by two pieces of glass attached together, thus forming a secondary image deviation. The secondary image deviation means that when the two pieces of glass of the car windshield are not parallel, under certain lighting conditions, when looking at an object through the glass, in addition to the main image (the target object within the visual observation range), one or more secondary images (commonly known as shadows) will be seen. The angle formed between the secondary image and the main image is called the secondary image deviation angle. When driving at night, the secondary image caused by the bright light is very obvious in the dark background. If the secondary image deviates greatly, the driver will have an illusion and traffic accidents are prone to occur.

[0051] In the prior art, when confirming the deviation of the secondary image, manual observation is mainly used to place the primary image at the pole of the polar coordinate system to observe the position of the secondary image. This method has a low degree of automation, and there are errors in the manually marked measurement points. Therefore, the present application provides a secondary image deviation measurement system that can automatically confirm the primary image coordinates and the secondary image coordinates, thereby confirming the secondary image deviation based on the primary image coordinates and the secondary image coordinates, thereby having a high degree of automation, high precision, and high efficiency.

[0052] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0053] like Figures 1 to 3 As shown, the present application provides a secondary image deviation measurement system 1, comprising:

[0054] A light source 11, the light source 11 is disposed on a first side of the glass to be tested 2, and is used to emit light;

[0055] The image acquisition device 12 is arranged on a second side of the glass to be tested 2 which is opposite to the first side. The image acquisition device 12 is coaxially arranged with the light source 11. The light source 11 forms a primary image and a secondary image on the image acquisition device 12 through the glass to be tested 2. The image acquisition device 12 is used to determine the primary image coordinates and the secondary image coordinates, and obtain the secondary image deviation value according to the primary image coordinates and the secondary image coordinates.

[0056] In this embodiment, the light source 11 is a laser light source 11, which is used to simulate external lights. The image acquisition device 12 includes a telescope, which is used to simulate the driver's eyes, so that the light emitted by the light source 11 will be refracted by the glass to be tested 2 and projected toward the image acquisition device 12, and imaged on the image acquisition device 12 to form a primary image and a secondary image. The image acquisition device 12 also includes a CCD camera, which is arranged on the side of the telescope away from the light source 11, and is used to take a picture with a primary image and a secondary image, and obtain the primary image coordinates and the secondary image coordinates according to the picture, and calculate the secondary image deviation value according to the focal length of the telescope and the pixel distance of the CCD camera. The primary image coordinates are arranged close to the optical axis of the image acquisition device 12 to ensure that the optical axis of the light source 11 and the optical axis of the image acquisition device 12 are within a certain deviation range.

[0057] The present application provides a secondary image deviation measurement system 1, comprising a light source 11 and an image position acquisition device 12, wherein the light source 11 and the image position acquisition device 12 are respectively arranged on the first side and the second side of the glass to be tested 2, and the glass to be tested 2 is placed at a certain angle to the horizontal plane, so that the light emitted by the light source 11 will be refracted through the glass to be tested 2 to the image position acquisition device 12, so as to form an image on the image position acquisition device 12. Since the glass to be tested 2 is a two-layer glass structure, the imaging of the light on the image position acquisition device 12 has two types of imaging, namely, a primary image and a secondary image. The image position acquisition device 12 is also used to confirm the primary image coordinates and the secondary image coordinates, and confirm the deviation value of the secondary image relative to the primary image according to the primary image coordinates and the secondary image coordinates.

[0058] Therefore, the secondary image deviation measurement system 1 provided in the present application can confirm the coordinates of the main image position and the secondary image position through the setting of the image position acquisition device 12, and confirm the deviation value of the secondary image relative to the main image based on the main image coordinates and the secondary image coordinates, so as to realize rapid and accurate automatic identification of the secondary image deviation value, with high degree of automation, easy use, accurate measurement, and the ability to simulate the driver's state to the greatest extent, thereby improving safety.

[0059] In the embodiment of the present application, the image acquisition device 12 includes a differentiation plate, and the optical axis of the light source 11 is projected at a first position of the differentiation plate;

[0060] When the first position is located at the midpoint of the differentiation plate, the optical axis of the light source 11 is coaxial with the optical axis of the image acquisition device 12 .

[0061] In this embodiment, the graticule is generally installed on the focal plane of the right objective lens of the image acquisition device 12. It is an extremely thin piece of glass with fine graticule lines engraved on the surface.

[0062] In this embodiment, the optical axis of the light source 11 is projected at the first position of the differentiation plate. When the optical axis of the light source 11 is coaxially arranged with the optical axis of the image acquisition device 12, the optical axis of the light source 11 will fall at the center of the differentiation plate, that is, the first position is the midpoint of the differentiation plate, and when the first position is not the midpoint of the differentiation plate, the light source 11 and the image acquisition device 12 are not coaxially arranged, and the position of the light source 11 or the image acquisition device 12 needs to be adjusted. Therefore, it can be confirmed whether the light source 11 and the image acquisition device 12 are coaxial by projecting the optical axis of the light source 11 at the position of the differentiation plate, so as to further obtain the secondary image deviation value.

[0063] like Figures 1 to 5 As shown, in the embodiment of the present application, it also includes:

[0064] The movable device 13, the light source 11 and / or the image acquisition device 12 are movably connected to the movable device 13;

[0065] A controller, the controller is connected to the image acquisition device 12 and the movable device 13, and is used to receive the coordinates of the first position on the differentiation plate, and control the light source 11 and / or the image acquisition device 12 to move on the movable device 13 according to the coordinates of the first position on the differentiation plate;

[0066] When the first position is not located at the midpoint of the differentiation plate, the controller controls the image acquisition device 12 and / or the light source 11 to move on the movable device 13 according to the coordinates of the first position until the first position is located at the midpoint of the differentiation plate.

[0067] In this embodiment, the movable device 13 is a device that can move the light source 11 and / or the image position acquisition device 12 so that the position or angle of the light source 11 and / or the image position acquisition device 12 can be changed. The controller can be a PLC for controlling the entire secondary image deviation measurement system 1.

[0068] In this embodiment, the light source 11 and the image acquisition device 12 are respectively arranged on the first side and the second side of the glass to be tested 2, and the glass to be tested 2 is placed at a certain angle to the horizontal plane, so that the light emitted by the light source 11 will be refracted through the glass to be tested 2 to the image acquisition device 12 to form an image on the image acquisition device 12. The image acquisition device 12 includes a differentiation plate, and the optical axis of the light source 11 falls on the first position on the differentiation plate, and the image acquisition device 12 can obtain the coordinates of the first position on the differentiation plate. The controller is connected to the image acquisition device 12 and the movable device 13 respectively. When the first position is located at the center of the differentiation plate, the position of the light source 11 and / or the image acquisition device 12 does not need to be moved, and the optical axis of the light source 11 is coaxial with the optical axis of the image acquisition device 12. When the first position is not located at the center of the differentiation plate, the position of the light source 11 and / or the image acquisition device 12 needs to be moved. The controller can receive the coordinates of the first position and control the light source 11 and / or the image acquisition device 12 to move in the movable device 13 according to the coordinates of the first position until the first position is located at the midpoint of the differentiation plate, so that the optical axis of the light source 11 is coaxial with the optical axis of the image acquisition device 12. When the optical axis of the light source 11 is coaxial with the optical axis of the image acquisition device 12, the image acquisition device 12 can obtain the secondary image deviation value.

[0069] like Figure 4 As shown, in the embodiment of the present application, the movable device 13 includes:

[0070] A light source movable platform 131, the light source movable platform 131 comprises a first frame 1311, a first guide rail 1312 extending along a first direction, a first lead screw 1313 extending along a second direction, a first rotating platform 1315 and a first pitching platform 1314, the first guide rail 1312 is slidably connected with the first lead screw 1313 along the first direction, the first rotating platform 1315 is rotatably connected with the first lead screw 1313 along the extension direction of the first lead screw 1313, the first rotating platform 1315 is used to rotate around the second direction, the first rotating platform 1315 is provided with the first pitching platform 1314, the first pitching platform 1314 is provided with the light source 11, and the first pitching platform 1314 is used to rotate around the first direction;

[0071] There is an angle between the first direction and the second direction.

[0072] In this embodiment, the movable device 13 may include a light source movable platform 131, so that the position of the light source 11 can be movable. The direction of the line from the light source 11 to the image acquisition device 12 is the third direction, the first direction is perpendicular to the third direction, the second direction has an angle with the first direction and the third direction; any two directions of the first direction, the second direction and the third direction are perpendicular. The second direction may be a vertical direction.

[0073] In this embodiment, the length of the first guide rail 1312 can be 1m, and the length of the first lead screw 1313 can be 0.7m. Of course, it can also be other lengths, as long as it is suitable for production and application, and is not limited here. The horizontal rotation range of the first rotating table 1315 is ±20°, and the pitch angle range of the first pitching table 1314 is ±15°. The rotation range of the first rotating table 1315 and the first pitching table 1314 can also be other, and it is limited according to the same specific limit structure as in the related art.

[0074] In this embodiment, the light source movable platform 131 includes a first frame 1311, a first guide rail 1312, a first screw 1313, a first rotating table 1315 and a first pitching table 1314. The frame can be a gantry frame. The frame can be provided with a first guide rail 1312 extending along a first direction and a first screw 1313 extending along a second direction. The first screw 1313 is slidably connected to the first guide rail 1312 along the first direction. The first screw 1313 is provided with a first rotating table 1315. The first rotating table 1315 can be rotatably connected to the first screw 1313 along the extension direction of the first screw 1313. The first rotating table 1315 is used to rotate around the first direction. The first rotating table 1315 is provided with a first pitching table 1314. The first pitching table 1314 is provided with a light source 11. The first pitching table 1314 is used to rotate around the second direction. Therefore, under the action of the first rotating platform 1315, the light source 11 can rotate around the second direction to achieve horizontal angle adjustment; under the action of the first pitch platform 1314, the light source 11 can rotate around the first direction to achieve pitch angle adjustment; under the action of the first lead screw 1313, the light source 11 can move along the second direction to achieve position adjustment in the second direction; under the action of the first guide rail 1312, the light source 11 can move along the first direction to achieve position adjustment in the first direction, so that when the optical axis of the light source 11 is not coaxial with the optical axis of the image position acquisition device 12, the light source 11 is moved on the light source movable platform 131 to adjust the position and / or angle of the light source 11, so as to achieve the coaxiality of the optical axis of the light source 11 and the optical axis of the image position acquisition device 12, and then obtain the secondary image deviation value.

[0075] like Figure 5 As shown, in the embodiment of the present application, the movable device 13 further includes:

[0076] The movable platform 132 of the image position device includes a second frame 1321, a second guide rail 1322 extending along the first direction, a second lead screw 1323 extending along the second direction, a second rotating platform and a second pitching platform, the second guide rail 1322 is slidably connected to the second lead screw 1323 along the first direction, the second lead screw 1323 is rotatably connected to the second rotating platform along the second direction, the second rotating platform is provided with the second pitching platform, the second rotating platform is used to rotate along the second direction, the second pitching platform is provided with the image position acquisition device 12, and the second pitching platform is used to rotate around the first direction;

[0077] There is an angle between the first direction and the second direction.

[0078] In this embodiment, the movable device 13 may include an image position device movable platform 132, so that the position of the image position acquisition device 12 can be moved. The direction of the line from the light source 11 to the image position acquisition device 12 is the third direction, the first direction is perpendicular to the third direction, the second direction has an angle with the first direction and the third direction; any two directions of the first direction, the second direction and the third direction are perpendicular. The second direction can be a vertical direction.

[0079] In this embodiment, the length of the second guide rail 1322 can be 1m, and the length of the second lead screw 1323 can be 0.7m. Of course, it can also be other lengths, as long as it is suitable for production and application, and is not limited here. The horizontal rotation range of the second rotating table is ±20°, the pitch angle range of the second pitching table is ±15°, and the rotation range of the second rotating table and the second pitching table can also be other, which is limited according to the same specific limit structure as in the related art.

[0080] In this embodiment, the movable platform 132 of the image position device includes a second frame 1321, a second guide rail 1322, a second screw 1323, a second rotating table and a second pitch table. The frame can be a gantry frame. The frame can be provided with a second guide rail 1322 extending along the first direction and a second screw 1323 extending along the second direction. The second screw 1323 is slidably connected to the second guide rail 1322 along the first direction. A second rotating table is provided on the second screw 1323. The second rotating table can be rotatably connected to the second screw 1323 along the extension direction of the second screw 1323. The second rotating table is used to rotate around the second direction. A second pitch table is provided on the second rotating table. The second pitch table is provided with the image position acquisition device 12, and the second pitch table is used to rotate around the first direction. Therefore, under the action of the second rotating platform, the image position acquisition device 12 can rotate around the second direction to achieve horizontal angle adjustment; under the action of the second pitch platform, the light source 11 can rotate around the first direction to achieve pitch angle adjustment; under the action of the second lead screw 1323, the image position acquisition device 12 can move along the second direction to achieve position adjustment in the second direction; under the action of the second guide rail 1322, the image position acquisition device 12 can move along the first direction to achieve position adjustment in the first direction, so that when the optical axis of the light source 11 is not coaxial with the optical axis of the image position acquisition device 12, the image position acquisition device 12 is moved on the image position device movable platform 132 to adjust the position and / or angle of the image position acquisition device 12, so as to achieve the coaxiality of the optical axis of the light source 11 and the optical axis of the image position acquisition device 12, and then obtain the secondary image deviation value.

[0081] In this embodiment, when the light source 11 is coaxial with the image acquisition device 12, the light source 11 and the image acquisition device 12 can be moved synchronously on the light source movable platform 131 and the image acquisition device movable platform 132. Therefore, when the light source 11 moves left and right, the image acquisition device 12 moves left and right with the light source 11, so that the light source 11 and the image acquisition device 12 always remain coaxial; when the light source 11 moves up and down, the image acquisition device 12 moves up and down with the light source 11, so that the light source 11 and the image acquisition device 12 always remain coaxial; when the light source 11 moves left and right and up and down, the glass 2 to be tested can be scanned and tested. The light source 11 can also be rotated horizontally and / or pitched within a certain angle. According to the rotation angle of the light source 11 and the distance between the light source 11 and the camera, the lens of the image acquisition device 12 is translated to the optical axis of the light source 11, and the rotation angle of the camera lens is adjusted at the same time, so that the optical axis of the camera lens is coaxial with the optical axis of the laser light source 11, so that the coaxial detection of the glass 2 to be tested within a certain angle range can be performed.

[0082] like Figure 2 and Figure 7 As shown, in the embodiment of the present application, it also includes:

[0083] The panoramic positioning camera 15 is arranged on the second side of the glass to be tested 2, and is used to photograph the glass to be tested 2 and confirm the position of the point to be tested on the glass to be tested 2. The panoramic positioning camera 15 is connected to the controller to send the position of the point to be tested to the controller. The controller controls the light source 11 to move on the light source movable platform 131 according to the position of the point to be tested until the position of the point to be tested is set corresponding to the position of the light source 11.

[0084] In this embodiment, the panoramic positioning camera 15 is used to photograph the glass to be tested 2 , and can photograph the outline of the glass to be tested 2 , and can confirm the test point from the photographed glass to be tested 2 .

[0085] In this embodiment, the secondary image deviation measurement system 1 includes a light source 11, an image position acquisition device 12, a movable device 13, a controller and a panoramic positioning camera 15. The light source 11 and the image position acquisition device 12 are respectively arranged on the first side and the second side of the glass to be measured 2. The light source 11 forms a primary image and a secondary image on the image position acquisition device 12 through the glass to be measured 2. The panoramic positioning camera 15 is arranged on the second side of the glass to be measured 2, and is used to photograph the glass to be measured 2 and obtain the coordinates of the points to be measured on the glass to be measured 2. The panoramic positioning camera 15 is also connected to the controller, and the controller is used to receive the coordinates of the points to be measured transmitted by the panoramic positioning camera 15. The coordinates of the test point on the glass 2 need to correspond to the position of the light source 11. When the coordinates of the test point on the glass 2 correspond to the position of the light source 11, that is, when the coordinates of the test point on the glass 2 are located on the optical axis of the light source 11, there is no need to adjust the position of the glass 2 or the light source 11; when the coordinates of the test point on the glass 2 do not correspond to the position of the light source 11, it is necessary to adjust the position of the glass 2 or the light source 11. At this time, the controller needs to control the light source 11 to move on the light source movable platform 131 according to the position of the light source 11 and the coordinates of the test point on the glass 2, so that the position of the test point is set corresponding to the position of the light source 11, so that the secondary image deviation measurement system 1 can measure the secondary image deviation value at the test point.

[0086] like Figure 2 and Figure 7 As shown, in the embodiment of the present application, a supporting device 16 is further included. The supporting device 16 is arranged on the second side of the glass to be tested 2. A third rotating platform 161 is arranged on the supporting device 16. The third rotating platform 161 is connected to a panoramic positioning camera 15. The third rotating platform 161 is used to rotate around the supporting device 16.

[0087] In this embodiment, the third rotating platform 161 may be connected to a driver to rotate under the driving of the driver, so as to adjust the angle of the panoramic positioning camera 15 to better photograph the glass 2 to be tested.

[0088] In this embodiment, the third rotating table 161 can also be a manual rotating table, which includes a manual knob, a worm gear and a turntable. The manual knob is connected to the worm gear, and the manual knob drives the worm gear to rotate. A panoramic positioning camera 15 is arranged on the turntable, so that the panoramic positioning camera 15 can be rotated by rotating the manual knob to adjust the angle.

[0089] like Figure 3 As shown, in the embodiment of the present application, it also includes:

[0090] The operating device 17 includes a production line 171 extending along a third direction, an adjustable angle platform 172 and a lifting mechanism 173 are provided on the production line 171, a first end of the adjustable angle platform 172 along the third direction is rotatably connected to the production line 171 through a rotating shaft 178, a second end of the adjustable angle platform 172 along the third direction is a free end, the adjustable angle platform 172 has a first surface and a second surface opposite to the first surface, the first surface of the adjustable angle platform 172 is used to place the glass 2 to be tested, and the lifting mechanism 173 is provided on the production line 171. One end of the adjustable angle platform 172 is connected to the production line 171 near the second end of the adjustable angle platform 172, and the other end is connected to the second surface of the adjustable angle platform 172. The lifting mechanism 173 is a retractable structure for lifting the second end of the adjustable angle platform 172. The first end of the first surface of the adjustable angle platform 172 is provided with a stop mechanism 175 for blocking the glass to be tested 2. The second end of the first surface of the adjustable angle platform 172 is provided with a locking mechanism 174 for fixing the glass to be tested 2 on the first surface of the adjustable angle platform 172.

[0091] In this embodiment, the production line 171 may be a transmission belt for transmitting the glass 2 to be tested, and the transmission belt is provided with an adjustable angle platform 172 and a lifting mechanism 173. The lifting mechanism 173 may include a retractable spring structure.

[0092] In this embodiment, the adjustable angle platform 172 can receive the glass 2 to be tested in the size range of 1.8*1.9 meters to 1.0*1.5 meters. The angle between the adjustable angle platform 172 and the production line 171 is in the range of 0 to 35 degrees.

[0093] In this embodiment, in the transmission state, the glass 2 to be tested is transmitted along the third direction on the conveyor belt, the minimum distance between the adjustable angle platform 172 and the conveyor belt is greater than the thickness of the glass 2 to be tested, and the adjustable angle platform 172 does not interfere with the glass 2 to be tested. When it is necessary to detect the secondary image angle of the glass 2 to be tested, the first end of the adjustable angle platform 172 can be connected to the production line 171, so that the glass 2 to be tested on the production line 171 can be transmitted to the adjustable angle platform 172; then the adjustable angle platform 172 is lifted by the lifting mechanism 173, and the adjustable angle platform 172 has a first end and a second end, the first end is rotatably connected to the production line 171 through the rotating shaft 178, and the second end is a free end, and the adjustable angle platform 172 also has a first surface and a second surface, the first surface is used to carry the glass 2 to be tested, and the second surface is arranged close to the production line 171. The lifting mechanism 173 is arranged near the second end of the adjustable angle platform 172, and one end of the lifting mechanism 173 is connected to the production line 171, and the second end is connected to the second surface of the adjustable angle platform 172. When the lifting mechanism 173 is extended, the second end of the adjustable angle platform 172 can be lifted, and the lifting angle becomes larger. When the lifting mechanism 173 is retracted, the lifting angle of the second end of the adjustable angle platform 172 will become smaller, so that the lifting angle of the adjustable angle platform 172 can be adjusted, and the consistency of the position of each piece of glass 2 to be tested can be ensured.

[0094] In this embodiment, a stop mechanism 175 and a locking mechanism 174 are provided on the first surface of the adjustable angle platform 172. The stop mechanism 175 is provided at the first end of the adjustable angle platform 172, and the locking mechanism 174 is provided at the second end of the adjustable angle platform 172. The locking mechanism 174 can be a bolt. When the glass to be tested 2 is placed on the adjustable angle platform 172, the bolt is provided above the glass to be tested 2, the bolt is inserted into the bolt hole, one end of the bolt is against the glass to be tested 2, and the bolt is tightened to fix the glass to be tested 2; the locking mechanism 174 can also be a clamping claw, which is used to clamp the glass to be tested 2 to achieve the fixation of the glass to be tested 2. The stop structure can be a baffle perpendicular to the adjustable angle platform 172, which is used to prevent the glass to be tested 2 from sliding down.

[0095] like Figure 3 As shown, in the embodiment of the present application, the operating device 17 also includes:

[0096] A positioning mechanism 176, the positioning mechanism 176 is extended in the vertical direction, a first end of the positioning mechanism 176 is fixedly connected to the ground, and a second end of the positioning mechanism 176 is used to connect to the midpoint of the second surface of the adjustable angle platform 172;

[0097] The driving member 177 is connected to the controller and the lifting mechanism 173 respectively, and the controller is used to control the driving member 177 to drive the lifting mechanism 173 to extend or retract.

[0098] In this embodiment, the driving member 177 may be a motor.

[0099] In this embodiment, the operating device 17 also includes a positioning mechanism 176 and a driving member 177. The first end of the positioning mechanism 176 is fixedly connected to the ground, and the second end is used to be movably connected to the midpoint of the second surface of the adjustable angle platform 172, so that the adjustable angle platform 172 at different angles can be supported. The driving member 177 is connected to the lifting mechanism 173, so that the extension and retraction degree of the lifting mechanism 173 can be controlled, and then the inclination angle of the adjustable angle platform 172 can be adjusted. The driving member 177 is also connected to the controller, and the controller controls the driving member 177 to drive the lifting mechanism 173 to extend and retract according to the position of the point to be measured, so as to adjust the inclination angle of the adjustable angle platform 172, until the position of the point to be measured is set corresponding to the position of the light source 11.

[0100] like Figure 1 As shown, in the embodiment of the present application, there are multiple light sources 11 and multiple image acquisition devices 12, and the multiple light sources 11 correspond to the multiple image acquisition devices 12 one by one.

[0101] In this embodiment, the size of the glass 2 to be tested is relatively large, so that multiple groups of measurement systems can be set on both sides of the glass 2 to be tested, each group of measurement systems includes a light source 11 and an image position acquisition device 12, and each group of test systems can be tested independently, so that multiple areas of the glass 2 to be tested can be tested at the same time to improve the test efficiency. The width of the middle area of ​​the glass 2 to be tested can be 500mm, and any group of measurement systems can be moved to the middle area to perform secondary image deviation detection on the middle area of ​​the glass 2 to be tested.

[0102] So far, the various embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Based on the above description, those skilled in the art can fully understand how to implement the technical solution disclosed herein.

[0103] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified or some technical features may be replaced by equivalents without departing from the scope and spirit of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict.

Claims

1. A secondary image deviation measurement system, characterized in that: include: A light source, the light source is arranged on the first side of the glass to be tested and is used to emit light; An image acquisition device is provided on a second side of the glass to be tested that is opposite to the first side, the image acquisition device is coaxially arranged with the light source, the light source forms a primary image and a secondary image on the image acquisition device through the glass to be tested, the image acquisition device is used to determine the primary image coordinates and the secondary image coordinates, and obtain a secondary image deviation value according to the primary image coordinates and the secondary image coordinates.

2. The secondary image deviation measurement system according to claim 1, characterized in that: The image acquisition device comprises a differentiation plate, and the optical axis of the light source is projected at a first position of the differentiation plate; When the first position is located at the midpoint of the differentiation plate, the optical axis of the light source is coaxial with the optical axis of the image acquisition device.

3. The secondary image deviation measurement system according to claim 2, characterized in that: Also includes: A movable device, the light source and / or the image acquisition device being movably connected to the movable device; A controller, the controller being connected to the image acquisition device and the movable device, and configured to receive the coordinates of the first position on the differentiation plate, and control the light source and / or the image acquisition device to move on the movable device according to the coordinates of the first position on the differentiation plate; When the first position is not located at the midpoint of the differentiation plate, the controller controls the image acquisition device and / or the light source to move on the movable device according to the coordinates of the first position until the first position is located at the midpoint of the differentiation plate.

4. The secondary image deviation measurement system according to claim 3, characterized in that: The activity device comprises: A light source movable platform, the light source movable platform comprising a first frame, a first guide rail extending along a first direction, a first lead screw extending along a second direction, a first rotating platform and a first pitching platform, the first guide rail being slidably connected with the first lead screw along the first direction, the first rotating platform being rotationally connected with the first lead screw along the extension direction of the first lead screw, the first rotating platform being used to rotate around the second direction, the first rotating platform being provided with the first pitching platform, the first pitching platform being provided with the light source, and the first pitching platform being used to rotate around the first direction; There is an angle between the first direction and the second direction.

5. The secondary image deviation measurement system according to claim 3, characterized in that: The activity device also includes: An image position device movable platform, the image position device movable platform comprising a second frame, a second guide rail extending along a first direction, a second lead screw extending along a second direction, a second rotating platform and a second pitching platform, the second guide rail is slidably connected to the second lead screw along the first direction, the second lead screw is rotatably connected to the second rotating platform along the second direction, the second rotating platform is provided with the second pitching platform, the second rotating platform is used to rotate along the second direction, the second pitching platform is provided with the image position acquisition device, and the second pitching platform is used to rotate around the first direction; There is an angle between the first direction and the second direction.

6. The secondary image deviation measurement system according to claim 4, characterized in that: Also includes: A panoramic positioning camera is arranged on the first side of the glass to be tested, and is used to photograph the glass to be tested and obtain the coordinates of the points to be tested on the glass to be tested. The panoramic positioning camera is connected to the controller to send the coordinates of the points to be tested to the controller. The controller controls the light source to move on the light source movable platform according to the position of the points to be tested until the position of the points to be tested is set corresponding to the position of the light source.

7. The secondary image deviation measurement system according to claim 6, characterized in that: Also includes: A supporting device is arranged on the second side of the glass to be tested, a third rotating platform is arranged on the supporting device, the panoramic positioning camera is connected to the third rotating platform, and the third rotating platform is used to rotate around the supporting device.

8. The secondary image deviation measurement system according to claim 3, characterized in that: Also includes: An operating device, the operating device includes a production line extending along a third direction, an adjustable angle platform and a lifting mechanism are arranged on the production line, the first end of the adjustable angle platform along the third direction is rotatably connected to the production line through a rotating shaft, the second end of the adjustable angle platform along the third direction is a free end, the adjustable angle platform has a first surface and a second surface arranged opposite to the first surface, the first surface of the adjustable angle platform is used to place the glass to be tested, one end of the lifting mechanism is connected to the production line near the second end of the adjustable angle platform, and the other end is connected to the second surface of the adjustable angle platform, the lifting mechanism is a retractable structure for lifting the second end of the adjustable angle platform; a stop mechanism is arranged at the first end of the first surface of the adjustable angle platform for blocking the glass to be tested, and a locking mechanism is arranged at the second end of the first surface of the adjustable angle platform for fixing the glass to be tested on the first surface of the adjustable angle platform.

9. The secondary image deviation measurement system according to claim 8, characterized in that: The operating device also includes: A positioning mechanism, the positioning mechanism is extended in the vertical direction, a first end of the positioning mechanism is fixedly connected to the ground, and a second end of the positioning mechanism is used to connect to the midpoint of the second surface of the adjustable angle platform; A driving member is connected to the controller and the lifting mechanism respectively, and the controller is used to control the driving member to drive the lifting mechanism to extend or retract.

10. The secondary image deviation measurement system according to claim 1, characterized in that: There are multiple light sources and multiple image acquisition devices, and the multiple light sources correspond to the multiple image acquisition devices one by one.

Images