A device and method for detecting the appearance quality of electrochromic glass for buildings

By designing an inspection device that includes a camera, microscope, projector, and electric lifting mechanism, automated all-round appearance quality inspection of electrochromic glass has been achieved, solving the problems of low efficiency and large error in the existing technology and improving inspection efficiency and accuracy.

CN116297543BActive Publication Date: 2025-12-16SHANDONG HEFU TESTING & CERTIFICATION CO LTD
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Patent Information

Application Number
CN202310071742.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-01-16
Publication Date
2025-12-16
Estimated Expiration
2043-01-16

AI Technical Summary

Technical Problem

In the current technology, the appearance quality inspection of electrochromic glass relies on manual visual inspection and measurement, which results in low inspection efficiency and is prone to errors. It is difficult to achieve comprehensive appearance quality inspection, which is an urgent problem to be solved.

Method used

A device for inspecting the appearance quality of electrochromic glass for building applications was designed. It employs a camera, microscope, projector, rear projection screen, electric lifting components, and a horizontal movement mechanism to achieve automated inspection of electrochromic glass. Through image processing technology, it enables comprehensive inspection of the appearance quality of electrochromic glass.

Benefits of technology

This technology enables efficient and automated appearance quality inspection of electrochromic glass, reducing the workload of inspection personnel and improving inspection efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The application relates to a kind of building electrochromic glass appearance quality detection device and method, including first electric lifting piece and second electric lifting piece, and the lifting part top of first electric lifting piece and second electric lifting piece is connected with horizontal moving mechanism, and the moving part of horizontal moving mechanism is connected with glass plate fixing mechanism, one side of glass plate fixing mechanism is equipped with camera and microscope connected with control system, the other side is equipped with rear projection screen, and the side of rear projection screen away from glass plate fixing mechanism is equipped with projector, and the detection device of the application can realize the omnibearing efficient detection of electrochromic glass appearance quality.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of building material product detection, and particularly relates to a device and method for detecting appearance quality of electrochromic glass for building. BACKGROUND

[0002] The statements herein merely provide background information related to the present application and do not necessarily constitute the prior art.

[0003] The electrochromic glass has adjustable light absorption and transmission under the action of an electric field, can effectively control external radiation and internal heat diffusion, and can reduce the large amount of heat energy consumed by buildings to maintain indoor temperature, and is an energy-saving building material with broad application prospect. The current detection of the appearance quality of the electrochromic glass for building is performed by manual visual observation at a distance of 600 mm from the electrochromic glass and recording any visible appearance defects. For the size of the point defects and the width of the linear defects, a reading microscope with a graduation value of 0.01 mm is used for measurement, and for the length of the linear defects, a steel ruler with a graduation value of 1 mm or a measuring tool with equivalent accuracy is used for measurement. These appearance quality detection work is performed under the colored state and the faded state of the glass. The current appearance quality detection of the electrochromic glass is performed by manual visual observation and manual measurement. For example, to judge and measure the appearance of the electrochromic glass, for the point defects: pinholes, bubbles, stones and light distortion points with a diameter <1.0 mm should not be densely present, 1.0 mm≤diameter<1.5 mm, no more than 2 / m2 in the middle of the glass with a spacing of more than 300 mm, and should not be densely present at the edge, 1.5≤diameter<3.0 mm, not allowed to exist in the middle, no more than 1 / m2 at the edge, and not allowed to exist with a diameter >3 mm. For the point defect spots: spots with a diameter <1.0 mm should not be densely present, 1.0≤diameter<5.0 mm, not allowed to exist in the middle, no more than 2 / m2 at the edge, and not allowed to exist with a diameter >5 mm. For the linear defects: dark channels are not allowed to be visually visible, defects with a width ≥1.0 mm or a length >60 mm are not allowed to exist, defects with a width ≤0.5 mm and a length ≤60 mm are no more than 3 / m2, defects with a width >0.5 mm or a length >60 mm are not allowed to exist, and visually visible defects such as broken or cracked lines, unevenness or irregularity, and abnormal nakedness are not allowed to exist. When a large number of items are detected manually, visual fatigue often occurs in the detection personnel, resulting in frequent misjudgment, mistakes and omissions, and the detection efficiency is not high. The current image processing technology can be used to identify and measure the appearance defects of the glass plate, solving the problem of identifying and measuring the defects by manual visual observation. However, how to use the current image processing technology to realize efficient and comprehensive appearance quality detection of the electrochromic glass is a problem that needs to be solved in the field. SUMMARY

[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a building electrochromic glass appearance quality detection device, which solves the problem of using current image processing technology to conduct all-around appearance detection on electrochromic glass.

[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical scheme:

[0006] In the first aspect, the embodiment of the present application provides a building electrochromic glass appearance quality detection device, which comprises a first electric lifting part and a second electric lifting part, a horizontal moving mechanism is connected between the top ends of the lifting parts of the first electric lifting part and the second electric lifting part, a moving part of the horizontal moving mechanism is connected with a glass plate fixing mechanism, one side of the glass plate fixing mechanism is provided with a camera and a microscope connected with a control system, the other side is provided with a back projection screen, and the side of the back projection screen away from the glass plate fixing mechanism is provided with a projector.

[0007] Optionally, the camera and the microscope are connected with the lifting part of a third electric lifting part, the third electric lifting part is fixed on the tabletop of a workbench, the bottom end of the back projection screen is fixed on the tabletop of the workbench, the projector is connected with the lifting part of a fourth electric lifting part, the fourth electric lifting part is fixed on the tabletop of the workbench, and the center lines of the lenses of the projector and the camera are located in the same vertical plane.

[0008] Optionally, the top end of the lifting part of the third electric lifting part is provided with a supporting plate, the microscope is placed on the supporting plate, and the camera is detachably fixed on the supporting plate.

[0009] Optionally, the horizontal moving mechanism adopts a linear motor, the fixed part of the linear motor is fixed between the lifting parts of the first electric lifting part and the second electric lifting part, and the moving part is connected with the glass plate fixing mechanism.

[0010] Optionally, the glass plate fixing mechanism comprises a sliding plate fixed with the moving part of the horizontal moving mechanism, the sliding plate is slidably connected with a first sliding block and a second sliding block, the first sliding block and the second sliding block are connected with a driving mechanism to realize synchronous opposite or away movement, the first sliding block is fixed with a first fixing assembly, and the second sliding block is fixed with a second fixing assembly.

[0011] Optionally, the driving mechanism comprises a driving part fixed at one end of the sliding plate, the driving part is connected with a lead screw located in the cavity of the sliding plate, the first sliding block and the second sliding block are provided with lead screw nuts at the bottom, the rotation directions of the two lead screw nuts are opposite, and the two lead screw nuts are connected with the lead screw.

[0012] Optionally, the first fixing assembly and the second fixing assembly each comprise a lower fixing block provided with a placing groove, a fifth electric lifting part is arranged on one side surface of the lower fixing block, an upper fixing block is arranged at the top end of the fifth electric lifting part, the upper fixing block is also provided with a placing groove, and the lower fixing block and the upper fixing block are each provided with a clamping driving part, and the telescopic part of the clamping driving part extends into the placing groove and is used for clamping the glass plate in cooperation with the groove surface of the placing groove.

[0013] Optionally, the groove surface of the placing groove used for contacting the glass plate is provided with a flexible pad, and correspondingly, the end of the telescopic part of the clamping driving part is also provided with a flexible pad.

[0014] Optionally, the flexible pad arranged on the groove surface of the placing groove and / or the flexible pad arranged on the end of the telescopic part of the clamping driving part is internally provided with a pressure detection element.

[0015] In a second aspect, the embodiments of the present application provide a method for detecting the appearance quality of the electrochromic glass for building as described in the first aspect, and the method comprises the following steps:

[0016] The glass plate fixing mechanism fixes the electrochromic glass to be detected and makes the electrochromic glass in an energized coloring state or a bleaching state;

[0017] The first electric lifting part, the second electric lifting part and the horizontal moving mechanism are adjusted to adjust the electrochromic glass plate to an initial position.

[0018] The camera, the microscope and the projector are started, and the back projection screen emits the set natural light or heat dissipation light to the electrochromic glass.

[0019] The camera collects the image of the electrochromic glass, the appearance defects of the electrochromic glass are identified and recorded according to the image collected by the camera, and the size of the point-like and linear defects is measured by the microscope.

[0020] The position of the electrochromic glass is adjusted by adjusting the first electric lifting part, the second electric lifting part and the horizontal moving mechanism, and the appearance quality of the electrochromic glass at any position is detected.

[0021] The beneficial effects of the present application are as follows:

[0022] 1. The detection device of the present application has a camera, a microscope, a projector, a back projection screen and a first electric lifting piece, a second electric lifting piece, a horizontal moving mechanism, can emit the required natural light or heat dissipation light background by the back projection screen, then can collect the appearance defect image of the glass by the camera and record, can measure the size of the point and line defects by the microscope, without manual visual observation of defects and manual measurement of defect size, greatly reducing the labor intensity of the detection personnel, improving the work efficiency, and through the setting of the electric lifting piece and the horizontal moving mechanism, the glass can be adjusted to any position, realizing the omnibearing appearance quality detection of the glass, and the efficiency is high.

[0023] 2. The detection device of the present application, the flexible pad is arranged on the telescopic part of the clamping driving piece, and the pressure detection element is arranged in the inside, the flexible pad is arranged on the groove surface of the placing groove, and the pressure detection element is arranged in the inside, the collision force when clamping the glass can be buffered, and the clamping force can be detected by the pressure detection element, so that the damage to the glass caused by the excessive clamping force is prevented, and the damage to the glass in the fixing process is prevented.

[0024] 3. The detection device of the present application, the camera, the microscope and the third electric lifting piece are connected, the projector and the fourth electric lifting piece are connected, the first fixed assembly and the second fixed assembly are provided with the fifth electric lifting piece, the appearance quality detection requirement of different specifications and sizes of glass is met, and the applicability of the whole detection device is improved. DETAILED DESCRIPTION

[0025] The drawings accompanying the specification of the present application form a part of the present application, the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation of the present application.

[0026] Figure 1 is the overall structure front view of embodiment 1 of the present application;

[0027] Figure 2 is the local enlarged view of A in embodiment 1 of the present application; Figure 1

[0028] Figure 3 is the overall structure side view of embodiment 1 of the present application;

[0029] Figure 4 is the local enlarged view of B in the present application; Figure 3

[0030] Figure 5 is the overall structure top view of embodiment 1 of the present application;

[0031] Figure 6 is the local enlarged view of C in the present application; Figure 5 ​​​

[0032] Figure 7 This is the present invention. Figure 5 A schematic diagram of the section along direction A;

[0033] Figure 8 This is the present invention. Figure 7 Enlarged view of section D in the image;

[0034] Figure 9 This is the present invention. Figure 7 Enlarged view of section E in the image;

[0035] Figure 10 This is a schematic diagram of the control principle of Embodiment 1 of the present invention;

[0036] Among them, 1. Ground foundation, 2. First electric lifting component, 3. Workbench, 4. Electrochromic glass controller, 5. PLC controller, 6. Third electric lifting component, 7. Lifting part, 8. Flange, 9. Horizontal tray, 10. Microscope, 11. Camera, 12. Vertical plane, 13. Lifting part, 14. Flange, 15. Fixed part, 16. Moving part, 17. Servo motor, 18. Slide plate, 19. First slider, 20. First clamping drive, 21. Lower fixed block, 22. Second clamping drive, 23. Upper fixed block, 24. Electrochromic glass, 25. 26. Bushing, 27. Lifting part, 28. Fifth electric lifting component, 29. Rear projection screen, 30. Base, 31. Fourth electric lifting component, 32. Lifting part, 33. Flange, 34. Projector, 35. Lead screw, 36. Through hole, 37. Telescopic part, 38. Fourth pressure detection element, 39. Fourth flexible pad, 40. Third flexible pad, 41. Flat key, 42. Lead screw nut, 43. First flexible pad, 44. Telescopic part, 45. Through hole, 46. Second pressure detection element, 47. Second flexible pad, 48. First pressure detection element. Detailed Implementation

[0037] Example 1

[0038] This embodiment provides a device for inspecting the appearance quality of electrochromic glass for building applications, such as... Figures 1-10 As shown, the workbench 3 includes a tabletop, which is a rectangular plate structure. Columns are provided at the four corners of the tabletop. The top of the columns is fixed to the tabletop, and the bottom is fixed to the ground foundation 1 to support the tabletop.

[0039] Below the platform, there are vertically arranged first electric lifting component 2 and second electric lifting component. In this embodiment, both the first electric lifting component 2 and the second electric lifting component are electric servo lifting rods, and their servo motors are connected to the control system, which controls their operation.

[0040] The lifting parts 13 of the first and second electric lifting devices 2 extend above the table through an opening provided on the table, and the top ends of the lifting parts of the first and second electric lifting devices 2 are fixed with flanges 14, and the horizontal moving mechanism is fixed between the two flanges 14 by bolts.

[0041] In the embodiment, the horizontal moving mechanism adopts a linear motor arranged horizontally, which can be obtained by using existing equipment, and includes a fixed part 15 and a moving part 16, and the moving part 16 can move horizontally and linearly along the fixed part.

[0042] The two ends of the fixed part are fixed with the two flanges 14 by bolts, respectively.

[0043] The moving part 16 of the linear motor is fixed with a glass plate fixing mechanism, which is used for fixing the electrochromic glass to be detected.

[0044] The glass plate fixing mechanism includes a sliding plate 18 fixed with the moving part 16 of the linear motor by bolts, and the cross section of the sliding plate 18 adopts a dovetail structure, and has a cavity extending to the top surface.

[0045] The first and second sliding blocks are slidably connected to the sliding plate, and the first and second sliding blocks are connected with the sliding plate through dovetail-shaped grooves to realize sliding along the sliding plate.

[0046] In the embodiment, the first and second sliding blocks are symmetrically arranged with respect to the center of the sliding plate 18, and the first and second sliding blocks are connected with a driving mechanism, which can drive the first and second sliding blocks to move synchronously towards or away from each other.

[0047] In the embodiment, the driving mechanism includes a driving member, which adopts a servo motor 17, and the motor housing of the servo motor 17 is fixed on one side end of the sliding plate 18, the output shaft of the servo motor 17 is connected with one end of a lead screw 34, the bottom groove surfaces of the dovetail-shaped grooves of the first and second sliding blocks are fixed with lead screw nuts 42 by bolts, the internal threads of the two lead screw nuts 42 are opposite in direction, and the two lead screw nuts 42 are connected with the lead screw.

[0048] The servo motor 17 drives the lead screw 34 to rotate, which can drive the first and second sliding blocks to move synchronously towards or away from each other through the lead screw nuts 42.

[0049] The first sliding block 19 is fixed with a first fixing assembly for fixing one side of the electrochromic glass 24, and the second sliding block is fixed with a second fixing assembly for fixing the other side of the electrochromic glass 24.

[0050] In this embodiment, one side of the glass plate fixing mechanism is defined as the front side, and the other side is the rear side.

[0051] The first fixing assembly and the second fixing assembly are the same structure, and the first fixing assembly is taken as an example for description.

[0052] The first fixing assembly includes a lower fixing block 21. In this embodiment, the lower fixing block includes a first fixing part and a second fixing part located at the front side of the first fixing part. The height of the first fixing part is greater than that of the second fixing part, and the width of the second fixing part is greater than that of the first fixing part. The outer side surface of the first fixing part is flush along the width direction, and the rear surface of the protruding part of the second fixing part relative to the first fixing part is flush with the rear surface of the first fixing part along the width direction.

[0053] The inner surface of the second fixing part is provided with a first placing groove for placing the bottom end position of the glass. The first placing groove extends to the top surface of the second fixing part. The first placing groove has three side groove surfaces and one bottom groove surface. Two side groove surfaces are oppositely arranged and are respectively a first groove surface and a second groove surface. The first groove surface and the second groove surface are parallel to the front surface and the rear surface of the lower fixing block. The third groove surface is perpendicular to the first groove surface and the second groove surface. The bottom groove surface is horizontally arranged.

[0054] The front surface of the second fixing part is provided with a first clamping driving part 20. The first clamping driving part 20 is a clamping servo electric push rod. The fixed part of the servo electric push rod is fixed on the front surface of the second fixing part by bolts. The extension part 45 of the servo electric push rod passes through the first groove surface and extends into the placing groove through the through hole 45 of the second fixing part. The end of the extension part 45 of the servo electric push rod can cooperate with the second groove surface to clamp the bottom end of the electrochromic glass 24.

[0055] In this embodiment, the second groove surface, the bottom groove surface and the third groove surface of the first placing groove for contacting the glass are all provided with a first flexible pad 43. The first flexible pad 43 is made of rubber, sponge or other flexible materials. Correspondingly, the end of the extension part 44 of the clamping servo electric push rod is provided with a second flexible pad 47. The second flexible pad 47 is made of rubber, sponge or other flexible materials.

[0056] Through the setting of the flexible pad, the rigid collision damage to the glass during placing and clamping is avoided.

[0057] Meanwhile, the first flexible pad 43 is provided with a first pressure detection element 48, and the second flexible pad 47 is provided with a second pressure detection element 46. The first pressure detection element 48 and the second pressure detection element 46 are both flexible pressure sensors, which are used to detect the clamping force on the glass to prevent the glass damage caused by excessive clamping force and the clamping instability caused by insufficient clamping force.

[0058] The rear side of the first fixing part is fixed with a fifth electric lifting part 27, in this embodiment, the fifth electric lifting part 27 adopts a servo electric lifting rod, and the fixing part of the servo electric lifting rod is fixed on the rear side of the first fixing part by bolts.

[0059] The top end of the lifting part 26 of the fifth electric lifting part is fixed with an upper fixing block 23, the upper fixing block 23 is connected with the lifting part 26 by means of a flat key 41 and a shaft sleeve 25, one end of the upper fixing block 23 is fixed with the shaft sleeve 25, and the lifting part 26 is provided with a shaft shoulder structure in contact with the flat key 41 to vertically limit the shaft sleeve 25, and the shaft sleeve 25 is circumferentially limited along the lifting part 26 by means of the flat key 41.

[0060] The upper fixing block 25 is provided with a second placing groove corresponding to the first placing groove of the lower fixing block 21, the second placing groove is opened on the inner side of the lower fixing block 21, and includes three side groove surfaces, wherein the fourth groove surface and the fifth groove surface are two opposite groove surfaces, and the sixth groove surface is perpendicular to the fourth groove surface and the fifth groove surface, and the fourth groove surface and the fifth groove surface are parallel to the front side and the rear side of the lower fixing block.

[0061] The front side of the upper fixing block is provided with a second clamping driving part 22, the second clamping driving part adopts a servo electric push rod, the fixing part of the servo electric push rod is fixed on the front side of the upper fixing block by bolts, the telescopic part 36 of the servo electric push rod passes through the fourth groove surface after passing through the through hole 35 opened in the upper fixing block 23 and extends into the second placing groove, and the telescopic part can cooperate with the fifth groove surface to clamp the upper part of the glass side edge.

[0062] The fifth groove surface and the sixth groove surface are provided with a third flexible pad 39, the third flexible pad 39 is made of flexible materials such as rubber or sponge, and correspondingly, the end of the telescopic part 23 of the second clamping driving part 22 is provided with a fourth flexible pad 38, the fourth flexible pad 38 is made of flexible materials such as rubber or sponge.

[0063] The third flexible pad is provided with a third pressure detection element 40, and the fourth flexible pad 38 is provided with a fourth pressure detection element 37, the third pressure detection element 40 and the fourth pressure detection element 37 are both flexible pressure sensors, which are used to detect the clamping force generated on the glass plate.

[0064] The structure of the second fixing assembly is completely same as that of the first fixing assembly, and will not be repeated here.

[0065] In this embodiment, the bottom of the glass plate is placed in the first placement slot of the first and second fixing assemblies respectively, and the bottom and rear side of the glass plate are attached to the first flexible pad 43, and then the first clamping drive 20 is started. The telescopic part 44 of the first clamping drive 20 clamps the two ends of the bottom of the glass plate, and the clamping force is detected in real time by the first and second pressure detection elements 48 and 46. When the clamping force reaches the set value, the first clamping drive stops working.

[0066] The second clamping drive 22 connected to the upper fixing block 23 raised to the set height by the fifth electric lifting element 27 is operated, and the telescopic part 36 thereof is used to press the upper part of the two sides of the glass plate, so that the four-point fixing of the glass plate is realized.

[0067] The front side of the glass plate fixing mechanism is provided with a microscope 10 and a camera 11. In this embodiment, the microscope 10 and the camera 11 are connected to the top end of the lifting part 7 of the third electric lifting element 6. Specifically, the second electric lifting element 6 is a conventional servo electric lifting rod, the top end of the lifting part 7 of which is fixed with a flange plate 8, the top surface of the flange plate is fixed with a horizontal tray 9, and the microscope 10 and the camera 11 are fixed on the horizontal tray 9. The lens of the camera 11 is below the lens of the microscope 10, and the lens axes of the microscope 10 and the camera 11 are in the same vertical plane.

[0068] The installation positions of the microscope 10 and the camera 11 make the distance between the glass plate and the glass plate after being fixed reach 600 mm.

[0069] The bottom end of the second electric lifting element 6 is fixed on the table top of the workbench 3 by bolts.

[0070] The rear side of the glass plate fixing mechanism is provided with a rear projection screen 28, the two ends of the bottom of which are fixedly connected with a base 29, and the base 29 is fixed on the table top of the workbench 3 by bolts.

[0071] The rear side of the rear projection screen 28 is provided with a projector 33 used in cooperation therewith, the projector 33 is fixed on the top end of the lifting part 31 of the third electric lifting element 30, the third electric lifting element 30 is a conventional servo electric lifting rod, the top end of the lifting part 31 of which is provided with a flange plate 32, and the projector 33 is fixed by the flange plate 32. The lens axis of the projector 33 is in the same vertical plane as the lens axes of the microscope 10 and the camera 11. When in use, the third electric lifting element 30 drives the projector 33 to rise and fall, so that the lens axis thereof passes through the center of the rear projection screen 28.

[0072] In this embodiment, each servo electric lifting rod, servo clamping driving part, each pressure sensor, projector, camera, microscope, linear motor and other electric control devices are connected with the control system, the control system is connected with the upper computer, the control system adopts PLC controller 5, which can transmit the received data information to the upper computer for display, and the experimental personnel can send instructions to the PLC controller 5 through the upper computer to drive each electric control component to work automatically.

[0073] Embodiment 2

[0074] The embodiment provides a method for detecting the appearance quality of the electrochromic glass for building as described in embodiment 1, using the PLC controller 5 to control the electrochromic glass controller 4, so that the electrochromic glass is in the energized coloring state, and the above technical means can be realized by using the prior art, comprising the following steps:

[0075] Step 1: Place the electrochromic glass 24 to be tested in the first placement slot of the fixed block under the first and second fixed assemblies, and the glass is in contact with the first flexible pad 43. Press the detection start button in the PLC controller 5, and each electric control component works in the working state. The PLC controller 5 controls the servo motor 17 of the driving mechanism to work according to the image data transmitted by the camera 11 in real time, drives the screw rod 34 to rotate, and the first and second sliding blocks are close to each other at one end, so that the center line of the electrochromic glass 24 is located in the vertical plane 12 where the microscope 10, camera 11 and projector 33 lens axis are located. The fifth electric lifting part 27 drives the upper fixed block 23 to rise to the set height, and the PLC controller 5 controls the first and second clamping driving parts 20 and 22 to work, and clamps the electrochromic glass 24 by using the first and second clamping driving parts 20 and 22. When the PLC controller 5 receives the detection of each pressure detection element and detects that the clamping force reaches the set value, the PLC controller 5 controls the first and second clamping driving parts 20 and 22 to stop working.

[0076] Step 3: The PLC controller 5 controls the fourth electric lifting part 30 to ascend and descend, so that the lens axis of the projector 33 is located at the center position of the back projection screen 28, and the projector 33 is turned on, so that the back projection screen 28 emits the required natural light or heat dissipation light background, which can be realized by the PLC control 5.

[0077] Step 4: The camera 11 collects the image of the electrochromic glass at a distance of 600 mm, and the camera 11 transmits the collected image to the PLC controller 5. The PLC controller identifies any appearance defects of the electrochromic glass according to the existing defect identification method and automatically records.

[0078] The defect identification method can adopt the existing method, for example, the method of identifying defects through images as recorded in patent CN114965485A, or other methods of identifying appearance defects through images, which will not be described in detail.

[0079] The PLC controller 5 records the width and length of the point defects and linear defects measured by the microscope 10. The microscope is connected to the upper computer through the PLC controller 5. The microscope can collect images and automatically measure the size of point defects and linear defects using the software carried in the upper computer. This technology can adopt existing mature technology, which will not be described in detail.

[0080] In this embodiment, the defect width measurement is set to 0.01 mm, and the defect length measurement is set to 1 mm.

[0081] Step 5: When the appearance defect detection of the center of the electrochromic glass 24 is completed, the PLC controller 5 controls the linear motor to work and controls the first and second electric lifting devices to move, adjusting the position of the electrochromic glass 24, thereby completing the appearance quality detection of all parts of the electrochromic glass 24.

[0082] The PLC controller 5 controls the electrochromic glass controller 4 to make the electrochromic glass fade, and then uses the method of steps 1-5 to detect the appearance quality.

[0083] After the detection is completed, the PLC controller 5 displays all the observation and measurement results through the upper computer.

[0084] In this embodiment, in order to avoid omission, the detection starts from the middle position of the glass, and the whole glass is detected by moving the position to avoid omission. The defect judgment has requirements for the middle and edge indicators of the glass. After measuring the outer dimensions, the middle area can be calculated, and the boundaries of the middle and edge can be accurately controlled from the middle center.

[0085] The device of this embodiment can collect images of appearance defects on the glass using the camera 11 and record them. The size of point and linear defects can be measured using the microscope 10, without the need for manual visual observation and manual measurement of defect size, greatly reducing the labor intensity of the detection personnel and improving the work efficiency. Moreover, through the setting of the electric lifting devices and the horizontal moving mechanism, the glass can be adjusted to any position, realizing the full-range appearance quality detection of the glass with high efficiency.

[0086] At the same time, through the setting of the first and second sliding blocks and the driving mechanism, the setting of the fifth electric lifting device 27, and the setting of the third and fourth electric lifting devices 6 and 30, the appearance quality detection of electrochromic glasses 24 of different sizes can be realized, improving the applicability of the entire detection device.

[0087] After the measurement is completed, the PLC controller generates a defect site map according to the image captured by the camera, the defect recognition result, and the defect size obtained through the microscope. The generation of the defect site map can be achieved by using existing mature technology, and thus will not be described in detail here.

[0088] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for inspecting the appearance quality of electrochromic glass for building applications, characterized in that, It includes a first electric lifting component and a second electric lifting component. A horizontal moving mechanism is connected between the top ends of the lifting parts of the first electric lifting component and the second electric lifting component. The moving part of the horizontal moving mechanism is connected to the glass plate fixing mechanism. A camera and microscope connected to the control system are provided on one side of the glass plate fixing mechanism, and a rear projection screen is provided on the other side. A projector is provided on the side of the rear projection screen away from the glass plate fixing mechanism. The rear projection screen emits natural light or heat dissipation light background that meets the requirements. The glass plate fixing mechanism includes a sliding plate fixed to the moving part of the horizontal moving mechanism. The sliding plate is slidably connected to a first slider and a second slider. The first slider is fixed to a first fixing component, and the second slider is fixed to a second fixing component. Both the first and second fixing components include a lower fixing block with a placement groove. The upper fixing block also has a placement groove. Both the lower and upper fixing blocks are equipped with clamping drive components. The telescopic part of the clamping drive component extends into the placement groove to cooperate with the groove surface of the placement groove to clamp the glass plate. The groove surface of the placement groove that contacts the glass plate is provided with a flexible pad. Correspondingly, the end of the telescopic part of the clamping drive component is also provided with a flexible pad. Pressure detection elements are provided inside the flexible pad on the groove surface of the placement groove and / or the flexible pad at the end of the telescopic part of the clamping drive component.

2. The appearance quality inspection device for electrochromic glass for building use as described in claim 1, characterized in that, The camera and microscope are connected to the lifting part of the third electric lifting component, which is fixed on the workbench. The bottom of the rear projection screen is fixed on the workbench. The projector is connected to the lifting part of the fourth electric lifting component, which is fixed on the workbench. The center lines of the projector and camera lenses are located in the same vertical plane.

3. The appearance quality inspection device for electrochromic glass used in construction as described in claim 2, characterized in that, The third electric lifting component has a support plate at the top of its lifting part, on which the microscope is placed and the camera is detachably fixed.

4. The appearance quality inspection device for electrochromic glass for building use as described in claim 1, characterized in that, The horizontal moving mechanism uses a linear motor. The fixed part of the linear motor is fixed between the lifting parts of the first electric lifting component and the second electric lifting component, and the moving part is connected to the glass plate fixing mechanism.

5. The appearance quality inspection device for electrochromic glass for building use as described in claim 1, characterized in that, The first and second sliders are connected to the drive mechanism to achieve synchronous movement toward or away from each other.

6. The appearance quality inspection device for electrochromic glass for building use as described in claim 5, characterized in that, The drive mechanism includes a drive component fixed to one end of the slide plate. The drive component is connected to a lead screw located in the cavity of the slide plate. The bottom of the first slider and the second slider are provided with lead screw nuts, and the two lead screw nuts rotate in opposite directions. Both lead screw nuts are connected to the lead screw.

7. The appearance quality inspection device for electrochromic glass for building use as described in claim 1, characterized in that, A fifth electric lifting component is provided on one side of the lower fixed block, and an upper fixed block is provided at the top of the telescopic part of the fifth electric lifting component.

8. A method for inspecting the appearance quality of electrochromic glass for building applications according to any one of claims 1-7, characterized in that, Includes the following steps: The glass plate fixing mechanism fixes the electrochromic glass to be tested and puts the electrochromic glass into either an energized coloring state or a faded state. Adjust the first electric lifting component, the second electric lifting component, and the horizontal moving mechanism to adjust the electrochromic glass plate to the initial position; Activate the camera, microscope, and projector; the rear projection screen emits a set natural light or heat dissipation light onto the electrochromic glass. The camera captures images of the electrochromic glass, identifies and records appearance defects based on the images captured by the camera, and measures the size of point and line defects using a microscope. By adjusting the first electric lifting component, the second electric lifting component, and the horizontal moving mechanism, the position of the electrochromic glass can be adjusted, and the appearance quality of the electrochromic glass at any position can be inspected.

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