CN113686873A - Vehicle-mounted multi-connected screen based testing device and method - Google Patents
Vehicle-mounted multi-connected screen based testing device and method Download PDFInfo
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- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- G01N21/84—Systems specially adapted for particular applications
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- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
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Abstract
The invention relates to the technical field of display screen manufacturing, and provides a vehicle-mounted multi-connected screen-based testing device and a method, wherein a main control module, a conveying mechanism connected with the main control module, a space positioning structure and an optical testing module are designed to form the vehicle-mounted multi-connected screen testing device, and a product to be tested is automatically transported by utilizing the conveying mechanism, so that the production efficiency of the product can be improved; rely on the space of first motion axle subassembly to remove the function, steerable optical test module aims at the test product that awaits measuring in test area in the space, cooperation second motion axle subassembly's horizontal migration function, steerable optical test module enlarges or reduces its test coverage in the horizontal direction to the jumbo size that is compatible various sizes is many to be shielded more adaptively, and equipment compatibility is strong, and production line adaptability is high, and automatic test production line not only can promote product test efficiency, still can reduce test cost effectively.
Description
Technical Field
The invention relates to the technical field of display screen manufacturing, in particular to a vehicle-mounted multi-connected screen based testing device and method.
Background
Along with the intelligent development of automobiles, the vehicle-mounted display also develops towards the direction of screen connection and large-size multi-connected screen, and the display screen is attractive for the representative color value of the intelligent cabin at first sight, beautiful, high-grade and scientific, and reflects timely and reasonable processing of relevant information. The customers of the car factory display the appearance defects of the multi-connected screen, the detection requirement of the optical performance is very strict, and the production, manufacturing and detection of the multi-connected screen face the contradiction between quality, efficiency and cost.
In the current industry, in production and manufacturing, an industrial camera is mainly adopted for detecting the display appearance defects of the vehicle-mounted screen, and a probe type brightness meter is mainly adopted for detecting the optical performance of the vehicle-mounted screen. However:
on appearance defect detection, along with the screen size increase that ally oneself with more, there are the following problems in current detection scheme:
(1) under the condition of the same precision visual field, the industrial camera combines motion control and multi-point test, and the low efficiency of the industrial camera cannot meet the requirement of mass production;
(2) the resolution of the industrial camera is correspondingly improved by several times, the cost is very expensive, the multi-connected screen is generally a transverse screen, the industrial camera meets the condition of transverse size, the longitudinal precision is excessive, and the equipment cost is wasted.
On the aspect of optical performance detection, if a probe type brightness meter is adopted to detect the optical performance of the vehicle-mounted screen, a detection area can only cover the brightness within the diameter range of the probe, a display area outside the diameter range of the probe cannot cover the brightness, the efficiency of increasing the number of test points is increased, all display areas cannot be covered all the time, and the problem is more prominent along with the increase of the size of a multi-connected screen. If the imaging luminance meter is adopted to detect the optical performance of the vehicle-mounted screen, the equipment cost is too high, and therefore the imaging luminance meter cannot be widely popularized and used in production line batch production.
Disclosure of Invention
The invention provides a vehicle-mounted multi-connected screen-based testing device and method, and solves the technical problems that the conventional display screen detection equipment cannot be compatible with a large-size vehicle-mounted multi-connected screen (brightness is not uniform, and all display areas cannot be covered), the testing efficiency is low, and the cost of the testing equipment is high.
In order to solve the technical problems, the invention provides a vehicle-mounted multi-connected screen-based testing device which comprises a main control module, a conveying mechanism, a space positioning structure and an optical testing module, wherein the conveying mechanism, the space positioning structure and the optical testing module are connected with the main control module; the space positioning structure comprises a first moving shaft assembly and a second moving shaft assembly; the optical test module is fixedly arranged on the second moving shaft assembly, and the second moving shaft assembly is fixed on the first moving shaft assembly;
the conveying mechanism is used for conveying a product to be tested to a test area;
the space positioning structure is used for moving the optical test module to a corresponding test area;
the optical test module is used for acquiring image information of the product to be tested in a test area and feeding the image information back to the main control module;
and the main control module is used for carrying out data analysis according to the image information and outputting a corresponding test result.
The basic scheme designs that the main control module, the conveying mechanism connected with the main control module, the space positioning structure and the optical testing module form a vehicle-mounted multi-connected screen testing device, and the conveying mechanism is used for automatically conveying a product to be tested, so that the production efficiency of the product can be improved; rely on the space of first motion axle subassembly to remove the function, steerable optical test module aims at the test product that awaits measuring in test area in the space, cooperation second motion axle subassembly's horizontal migration function, steerable optical test module enlarges or reduces its test coverage in the horizontal direction to the jumbo size that is compatible various sizes is many to be shielded more adaptively, and equipment compatibility is strong, and production line adaptability is high, and automatic test production line not only can promote product test efficiency, still can reduce test cost effectively.
In a further embodiment, the first moving shaft assembly is a three-shaft moving mechanism, and includes a frame, an X-shaft fixing frame, a Y-shaft fixing frame, and a Z-shaft fixing frame, where the X-shaft fixing frame, the Y-shaft fixing frame, and the Z-shaft fixing frame are respectively provided with an X-shaft slide rail, a Y-shaft slide rail, and a Z-shaft slide rail; two groups of Y-axis fixing frames are symmetrically arranged on the rack, two ends of the X-axis fixing frame are respectively and movably arranged on Y-axis sliding rails of the two groups of Y-axis fixing frames, and the Z-axis fixing frame is movably arranged on the X-axis sliding rails; the X-axis fixing frame, the Y-axis fixing frame and the Z-axis fixing frame are mutually vertical.
According to the scheme, based on the test requirement of a multi-connected screen, a three-axis moving mechanism is arranged to serve as a first motion shaft assembly, so that an optical test module fixed on the first motion shaft assembly can freely move in space, and corresponding test data can be obtained; wherein, set up two sets of Y axle mounts symmetry and install in the frame, be used for providing the degree of freedom of Y axle direction on the one hand, on the other hand then provides stable holding power to X axle mount, Z axle mount, guarantees triaxial moving mechanism's stability.
In a further embodiment, the second moving shaft assembly comprises a fixed bracket, a first displacement shaft and a second displacement shaft, the fixed bracket is movably mounted on the first moving shaft assembly, and the first displacement shaft and the second displacement shaft are horizontally mounted on the fixed bracket;
the first displacement shaft comprises a first slide rail and a first slide block movably mounted on the first slide rail, and the second displacement shaft comprises a second slide rail and a second slide block movably mounted on the second slide rail;
when the size of the product to be tested changes, the first displacement shaft and the second displacement shaft are used for responding to the control of the main control module, driving the first sliding block and the second sliding block to move along the X-axis direction, and expanding or reducing the coverage area of the optical test module.
This scheme is based on the demand that the screen was many ally oneself with to the jumbo size, adds the second motion axle subassembly, and the design possesses the first displacement axle and the second displacement axle of horizontal degree of freedom, when the size change of examination product, moves along the X axle direction through controlling first slider, second slider, can enlarge or reduce optical test module's coverage, change the size of test product promptly, produce the line change efficiency height, and the cost is 0 basically.
In further embodiments, the optical test module comprises an image acquisition module, a brightness acquisition module;
the image acquisition module comprises a first camera, a second camera and a third camera, and the first camera, the second camera and the third camera are sequentially and vertically arranged on the first sliding block, the fixed support and the second sliding block;
the brightness acquisition module is arranged on one side of the fixed support and is close to the first camera;
the image information includes current luminance data and current image data.
According to the scheme, two cameras are additionally arranged on the basis of an original single camera to obtain an image acquisition module comprising a first camera, a second camera and a third camera, and 3 cameras can be basically compatible with most of products to be tested with larger sizes; meanwhile, the distance among the first camera, the second camera and the third camera can be controlled by utilizing the horizontal moving capability of the first displacement shaft and the second displacement shaft, so that the coverage range of the optical test module is enlarged or reduced, and other products to be tested with larger sizes are compatible. The method adopts a multi-axis and multi-camera testing method, is compatible with products with various screen sizes, realizes synchronous parallel testing of the appearance defects and the product performance of the display screen through parallel testing program development, can greatly shorten the single-screen testing time, and improves the throughput of a testing system.
In a further embodiment, the conveying mechanism comprises a base, a belt conveying structure fixed on the base, a position sensing module and a clamping jaw structure, wherein the position sensing module is installed at the tail end of the belt conveying structure; the clamping jaw structures are arranged on two sides of the tail end of the belt conveying structure and are aligned with the placement positions of the products to be tested;
the belt conveying structure is used for conveying the products to be tested to a testing station;
the position sensing module is used for detecting the position judgment of the product to be tested and sending a signal to the main control module when the product to be tested reaches a testing station;
the clamping jaw structure is used for lifting and/or overturning the product to be tested on the testing station, and moving the product to be tested to a testing area.
According to the scheme, the material characteristics of the products to be tested (vehicle-mounted multi-connected screens) are considered, and the products are conveyed by adopting a belt conveying structure, so that the damage probability of the products in the transportation process can be reduced; the position sensing module is adopted to automatically detect the product to be detected, so that the detection efficiency of the product can be improved, and the labor cost is reduced; the clamping jaw structure is used for moving a product to be tested to a test area, and the lifting and/or overturning of the product to be tested can be controlled due to the flexibility of the clamping jaw structure, so that various angles and heights in test requirements are met; through realizing the automatic test of full chain, saved personnel's transport time, stopped the risk of colliding with that probably appears in the handling, promoted transmission efficiency and personnel operation convenience.
In further embodiments, the first camera, the second camera, the third camera are all industrial cameras; the brightness acquisition module is a probe type brightness meter.
The invention also provides a test method based on the vehicle-mounted multi-connected screen, which is applied to the test device based on the vehicle-mounted multi-connected screen and comprises the following steps:
s1, conveying the product to be tested to a test area;
s2, driving the product to be tested to enter a test mode according to a preset test logic;
s3, controlling the optical test module to collect the image information of the product to be tested;
and S4, analyzing the image information and outputting a corresponding test result.
This basic scheme is different from traditional manual plugging test, adopts foretell a test device based on-vehicle many screen that ally oneself with, passes through data communication control product under test according to predetermineeing test logic and gets into the test mode, acquires corresponding image information and carries out data analysis, can confirm corresponding test result fast, and the automation of on-vehicle many screen tests that ally oneself with not only makes efficiency promote by a wide margin, has still reduced test cost.
In further embodiments, the step S3 includes:
s31, acquiring the size information of the product to be tested, and driving a second motion shaft assembly to drive an image acquisition module to expand/reduce the image acquisition range;
s32, driving the first motion shaft assembly to drive the image acquisition module and the brightness acquisition module to reach a target position;
and S33, controlling the image acquisition module and the brightness acquisition module to respectively acquire current brightness data and current image data.
According to the scheme, based on the space moving function of the first motion shaft assembly, the image acquisition module and the brightness acquisition module can be controlled to freely move in space to reach a target position (aiming at a product to be tested); based on the horizontal movement function of the second motion shaft assembly, the image acquisition module can be driven to expand/reduce the image acquisition range (control the distance between the first camera, the second camera and the third camera), so that the test device is compatible with test products of various sizes.
In further embodiments, the step S1 includes:
s11, controlling the belt conveying structure to convey the product to be tested to the testing station;
and S12, after the determination information of the position sensing module is received, controlling the clamping jaw structure to lift and/or turn over the product to be tested on the testing station, and moving the product to be tested to a testing area.
In a further embodiment, the present invention further comprises step S5: and when the test result is that the product is qualified, putting the product to be tested back to the belt conveying structure and conveying the product to the next station, otherwise, taking out the product to be tested.
Drawings
Fig. 1 is a schematic structural diagram of a vehicle-mounted multi-connected screen-based testing device provided in embodiment 1 of the present invention;
FIG. 2 is a partial block diagram of the test apparatus of FIG. 1 according to embodiment 1 of the present invention;
fig. 3 is a flowchart of a test method based on a vehicle-mounted multi-connected screen according to embodiment 2 of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are given solely for the purpose of illustration and are not to be construed as limitations of the invention, including the drawings which are incorporated herein by reference and for illustration only and are not to be construed as limitations of the invention, since many variations thereof are possible without departing from the spirit and scope of the invention.
Example 1
The reference numbers in the drawings in the present embodiment include: a main control module 1; the conveying mechanism 2, a belt conveying structure 21, a position sensing module 22 and a clamping jaw structure 23; the space positioning structure 3, a first moving shaft assembly 31, an X-axis fixing frame 311, a Y-axis fixing frame 312 and a Z-axis fixing frame 312; a second moving shaft assembly 32, a fixed bracket 321, a first displacement shaft 322 and a second displacement shaft 323; the system comprises an optical test module 4, a first camera 41, a second camera 42, a third camera 43 and a brightness acquisition module 44.
As shown in fig. 1 and 2, the testing device and method provided by the embodiment of the invention comprise a main control module 1, a conveying mechanism 2 connected with the main control module, a spatial positioning structure 3 and an optical testing module 4, wherein the spatial positioning structure 3 is arranged above the tail end of the conveying mechanism 2; the spatial positioning structure 3 comprises a first moving shaft assembly 31 and a second moving shaft assembly 32; the optical test module 4 is fixedly arranged on the second moving shaft assembly 32, and the second moving shaft assembly 32 is fixed on the first moving shaft assembly 31;
the conveying mechanism 2 is used for conveying a product to be tested to a testing area;
the space positioning structure 3 is used for moving the optical test module 4 to a corresponding test area;
the optical test module 4 is used for acquiring image information of a product to be tested in a test area and feeding the image information back to the main control module 1;
the main control module 1 is used for performing data analysis according to the image information and outputting a corresponding test result.
In this embodiment, the main control module 1 is preferably an upper computer, the product to be tested is a vehicle-mounted multi-connected screen, and data communication exists between the upper computer and the product to be tested.
In this embodiment, the first moving shaft assembly 31 is a three-axis moving mechanism, and includes a frame, an X-axis fixing frame 311, a Y-axis fixing frame 312, and a Z-axis fixing frame 312, where the X-axis fixing frame 311, the Y-axis fixing frame 312, and the Z-axis fixing frame 312 are respectively provided with an X-axis slide rail, a Y-axis slide rail, and a Z-axis slide rail; two groups of Y-axis fixing frames 312 are symmetrically arranged on the rack, two ends of the X-axis fixing frame 311 are respectively and movably arranged on Y-axis sliding rails of the two groups of Y-axis fixing frames 312, and the Z-axis fixing frame 312 is movably arranged on the X-axis sliding rails; the X-axis fixing frame 311, the Y-axis fixing frame 312 and the Z-axis fixing frame 312 are mutually perpendicular.
In this embodiment, based on the test requirement of a multi-connected screen, a three-axis moving mechanism is provided as the first motion shaft assembly 31, so that the optical test module 4 fixed on the first motion shaft assembly 31 can freely move in space to obtain corresponding test data; wherein, set up two sets of Y axle mounts 312 and symmetrically install in the frame, be used for providing the degree of freedom of Y axle direction on the one hand, on the other hand then provides stable holding power to X axle mount 311, Z axle mount 312, guarantees three-axis moving mechanism's stability.
In this embodiment, the second moving axle assembly 32 includes a fixed bracket 321, a first displacement axle 322 and a second displacement axle 323, the fixed bracket 321 is movably mounted on the first moving axle assembly 31, and the first displacement axle 322 and the second displacement axle 323 are horizontally mounted on the fixed bracket 321;
the first displacement shaft 322 comprises a first slide rail and a first slide block movably mounted on the first slide rail, and the second displacement shaft 323 comprises a second slide rail and a second slide block movably mounted on the second slide rail;
when the size of the product to be tested changes, the first displacement shaft 322 and the second displacement shaft 323 are used for driving the first slider and the second slider to move along the X-axis direction in response to the control of the main control module 1, so as to expand or reduce the coverage of the optical test module 4.
The first displacement shaft 322 and the second displacement shaft 323 are parallel to the X-axis fixing frame 311.
The first displacement shaft 322 and the second displacement shaft 323 are arranged in axial symmetry, and the symmetry axis of the first displacement shaft and the second displacement shaft coincides with the middle line of the Z-axis fixing frame 313; the first displacement shaft 322 and the second displacement shaft 323 are both parallel to the Y-axis fixing frame 312; the first displacement shaft 322 and the second displacement shaft 323 have the same dimension.
In this embodiment, based on the requirement of a large-size multi-connection screen, the second motion shaft assembly 32 is additionally provided, and the first displacement shaft 322 and the second displacement shaft 323 with horizontal freedom are designed, so that when the size of a product to be tested changes, the coverage of the optical test module 4 can be enlarged or reduced by controlling the first slider and the second slider to move along the X-axis direction, that is, the size of the test product is changed, the production line is high in change efficiency, and the cost is basically 0.
In the present embodiment, the optical test module 4 includes an image acquisition module, a brightness acquisition module 44;
the image acquisition module comprises a first camera 41, a second camera 42 and a third camera 43, wherein the first camera 41, the second camera 42 and the third camera 43 are sequentially and vertically arranged on the first sliding block, the fixed support 321 and the second sliding block;
the brightness acquisition module 44 is installed at one side of the fixing bracket 321, close to the first camera 41;
the image information includes current luminance data and current image data.
In the present embodiment, the first camera 41, the second camera 42, and the third camera 43 are all industrial cameras; the brightness acquisition module 44 is a probe type brightness meter.
Wherein before testing, device debugging is also required. Specifically, the first camera 41, the second camera 42, the third camera 43 and the brightness acquisition module 44 are controlled to simultaneously perform gray scale and brightness tests on the same display area of multiple multi-connected screen products respectively to obtain multiple groups of data, and the brightness test calibration is performed on the first camera 41, the second camera 42 and the third camera 43 by taking the measurement rate result of the probe type brightness meter as a reference. The calibration principle is that binarization processing is carried out on a picture, the gray value of a light emitting area of the picture is calculated, a saturation area of the gray value is stripped, data fitting is carried out on a linear area and a brightness value of the gray value, so that the calibration relation between the gray measurement result and the brightness value of the industrial camera is obtained, and conversion of shooting and imaging of the industrial camera is realized to replace a color analyzer to carry out full-screen brightness test.
The embodiment utilizes probe formula luminance meter + industrial camera, designs luminance fitting algorithm model, calibrates industrial camera parameter, makes industrial camera possess the color analyzer function, realizes that on-vehicle many screen full screen brightness that ally oneself with detects the requirement, satisfies on the basis of the strict quality management and control of product, has greatly saved equipment input cost, has improved efficiency of software testing greatly.
In this embodiment, two cameras are added on the basis of the original single camera to obtain an image acquisition module including a first camera 41, a second camera 42 and a third camera 43, and 3 cameras are basically compatible with most of products to be tested with larger sizes; meanwhile, the horizontal movement capability of the first displacement shaft 322 and the second displacement shaft 323 is utilized to control the distance between the first camera 41, the second camera 42 and the third camera 43, so as to expand or reduce the coverage area of the optical test module 4, thereby being compatible with other products to be tested with larger sizes; the method adopts a multi-axis and multi-camera testing method, is compatible with products with various screen sizes, realizes synchronous parallel testing of the appearance defects and the product performance of the display screen through parallel testing program development, can greatly shorten the single-screen testing time, and improves the throughput of a testing system.
In the embodiment, the conveying mechanism 2 comprises a base, a belt conveying structure 21 fixed on the base, a position sensing module 22 and a clamping jaw structure 23, wherein the position sensing module 22 is installed at the tail end of the belt conveying structure 21; the clamping jaw structures 23 are arranged on two sides of the tail end of the belt conveying structure 21 and aligned with the placement positions of the products to be tested;
the belt conveying structure 21 is used for conveying a product to be tested to a testing station;
the position sensing module 22 is used for detecting the position judgment of the product to be tested and sending a signal to the main control module 1 when determining that the product to be tested reaches the testing station;
the clamping jaw structure 23 is used for lifting and/or overturning a product to be tested on the testing station, and moving the product to be tested to a testing area.
The clamping jaw structure 23 comprises a left clamping jaw and a right clamping jaw, and the left clamping jaw and the right clamping jaw respectively comprise an upper jaw and a lower jaw; the inner side clamping surface of the upper claw is a +/-type clamping structure, and the inner side clamping surface of the lower claw is a +/-type clamping structure.
In the embodiment, the material characteristics of the product to be tested (vehicle-mounted multi-connected screen) are considered, and the belt conveying structure 21 is adopted for conveying, so that the damage probability of the product in the transportation process can be reduced; the position sensing module 22 is adopted to automatically detect the product to be detected, so that the detection efficiency of the product can be improved, and the labor cost can be reduced; the clamping jaw structure 23 is used for moving a product to be tested to a test area, and the flexibility of the clamping jaw structure 23 can control the lifting and/or overturning of the product to be tested, so that various angles and heights in test requirements are met; through realizing the automatic test of full chain, saved personnel's transport time, stopped the risk of colliding with that probably appears in the handling, promoted transmission efficiency and personnel operation convenience.
In this embodiment, the specific working process of the testing device is as follows:
before testing, the first displacement shaft 322 and the second displacement shaft 323 are controlled to respond to the control of the main control module 1 according to the size of the current test product, and the first slider and the second slider are driven to move along the X-axis direction, so that the coverage of the optical test module 4 is expanded or reduced.
Initializing the system, and entering a debugging stage:
controlling a brightness acquisition module 44 to detect the brightness of the prototype to obtain a current brightness parameter; the parameters of the first camera 41, the second camera 42, and the third camera 43 are calibrated by linearly fitting the current luminance value in the linear region of the gradation value by the linear fitting model.
After the calibration is finished, entering a testing stage:
the belt conveying structure 21 conveys the product to be tested to the testing station, and the position sensing module 22 sends a signal to the main control module 1 when determining that the product to be tested reaches the testing station. The main control module 1 issues an instruction to the clamping jaw structure 23 to clamp and lift the product to be tested to the test area.
The main control module 1 presets a test logic to drive a product to be tested to enter a test mode (for example, an upper computer establishes a communication handshake with the product to be tested through a bus and a serial port to enable the product to be tested to enter the test mode), and controls the product to be tested to sequentially execute a function test step a, a function test step B and a function test step C.
The main control module 1 controls the first motion shaft assembly 31 to move, moves the optical test module 4 to the test area, and controls the image acquisition module (the first camera 41, the second camera 42, and the third camera 43) and the brightness acquisition module 44 to acquire current image data and current brightness data.
And finally, the main control module 1 analyzes the image information and outputs a corresponding test result.
The embodiment of the invention designs a vehicle-mounted multi-split screen testing device consisting of a main control module 1, a conveying mechanism 2 connected with the main control module, a space positioning structure 3 and an optical testing module 4, and the conveying mechanism 2 is used for automatically conveying a product to be tested, so that the production efficiency of the product can be improved; rely on the space of first motion axle subassembly 31 to remove the function, steerable optical test module 4 aims at the test area's of awaiting measuring product in space, the horizontal migration function of cooperation second motion axle subassembly 32, steerable optical test module 4 enlarges or reduces its test coverage in the horizontal direction, thereby the compatible jumbo size of various sizes of ground is many to be screened adaptively, equipment compatibility is strong, it is high to produce line adaptability, automatic test production line not only can promote product test efficiency, still can reduce test cost effectively.
Example 2
The embodiment of the present invention further provides a vehicle-mounted multi-connected screen-based testing method, which is applied to the vehicle-mounted multi-connected screen-based testing device provided in embodiment 1, and referring to fig. 3, the method includes steps S1 to S5:
s1, conveying the product to be tested to the test area, including steps S11-S12:
s11, controlling the belt conveying structure 21 to convey the product to be tested to the testing station;
and S12, after receiving the determination information of the position sensing module 22, controlling the clamping jaw structure 23 to lift and/or turn over the product to be tested on the test station, and moving the product to be tested to the test area.
S2, driving the product to be tested to enter a test mode according to the preset test logic;
s3, controlling the optical test module 4 to collect the image information of the product to be tested, including steps S31-S33:
s31, acquiring the size information of the product to be tested, and driving the second motion shaft assembly 32 to drive the image acquisition module to expand/reduce the image acquisition range;
s32, driving the first motion shaft assembly 31 to drive the image acquisition module and the brightness acquisition module 44 to reach the target position;
s33, the image-controlling module and the brightness-collecting module 44 respectively obtain the current brightness data and the current image data.
In this embodiment, based on the spatial movement function of the first moving shaft assembly 31, the image acquisition module and the brightness acquisition module 44 can be controlled to freely move in space to reach a target position (aligned with a product to be tested); based on the horizontal movement function of the second motion shaft assembly 32, the image acquisition module can be driven to expand/reduce the image acquisition range (control the distance between the first camera 41, the second camera 42 and the third camera 43), so that the test products with various sizes can be compatible.
And S4, analyzing the image information and outputting a corresponding test result.
In the embodiment, at least appearance defect detection and optical brightness performance detection are carried out according to image information. For example: and (3) appearance defect detection, namely controlling the first camera 41, the second camera 42 and the third camera 43 to shoot the display area of the product to be tested simultaneously to obtain an image, performing defect detection by using data image processing, and judging whether the appearance of the product to be tested has defects.
S5: and when the test result is that the product is qualified, putting the product to be tested back to the belt conveying structure 21 and conveying the product to the next station, otherwise, taking out the product to be tested.
When the product is unqualified and the product to be tested is taken out, the system can be selected to be completely ended according to the requirement, the test program is closed, and the equipment is powered off; or selecting to continue the test, waiting for the next product to be tested to enter the test station by the equipment, and circularly executing the steps S1-S5.
The embodiment of the invention is different from the traditional manual plugging test, the test device based on the vehicle-mounted multi-connection screen is adopted, the product to be tested is controlled to enter the test mode through data communication according to the preset test logic, the corresponding image information is obtained and the data analysis is carried out, so that the corresponding test result can be rapidly determined, the automation of the vehicle-mounted multi-connection screen test not only greatly improves the efficiency, but also reduces the test cost.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Claims (10)
1. The utility model provides a testing arrangement based on-vehicle many screens that ally oneself with which characterized in that: the system comprises a main control module, a conveying mechanism connected with the main control module, a space positioning structure and an optical test module, wherein the space positioning structure is arranged above the tail end of the conveying mechanism; the space positioning structure comprises a first moving shaft assembly and a second moving shaft assembly; the optical test module is fixedly arranged on the second moving shaft assembly, and the second moving shaft assembly is fixed on the first moving shaft assembly;
the conveying mechanism is used for conveying a product to be tested to a test area;
the space positioning structure is used for moving the optical test module to a corresponding test area;
the optical test module is used for acquiring image information of the product to be tested in a test area and feeding the image information back to the main control module;
and the main control module is used for carrying out data analysis according to the image information and outputting a corresponding test result.
2. The vehicle-mounted multi-connected screen-based testing device as recited in claim 1, wherein: the first moving shaft assembly is a three-shaft moving mechanism and comprises a rack, an X-shaft fixing frame, a Y-shaft fixing frame and a Z-shaft fixing frame, wherein an X-shaft sliding rail, a Y-shaft sliding rail and a Z-shaft sliding rail are respectively arranged on the X-shaft fixing frame, the Y-shaft fixing frame and the Z-shaft fixing frame; two groups of Y-axis fixing frames are symmetrically arranged on the rack, two ends of the X-axis fixing frame are respectively and movably arranged on Y-axis sliding rails of the two groups of Y-axis fixing frames, and the Z-axis fixing frame is movably arranged on the X-axis sliding rails; the X-axis fixing frame, the Y-axis fixing frame and the Z-axis fixing frame are mutually vertical.
3. The vehicle-mounted multi-connected screen-based testing device as recited in claim 1, wherein: the second moving shaft assembly comprises a fixed support, a first displacement shaft and a second displacement shaft, the fixed support is movably arranged on the first moving shaft assembly, and the first displacement shaft and the second displacement shaft are horizontally arranged on the fixed support;
the first displacement shaft comprises a first slide rail and a first slide block movably mounted on the first slide rail, and the second displacement shaft comprises a second slide rail and a second slide block movably mounted on the second slide rail;
when the size of the product to be tested changes, the first displacement shaft and the second displacement shaft are used for responding to the control of the main control module, driving the first sliding block and the second sliding block to move along the X-axis direction, and expanding or reducing the coverage area of the optical test module.
4. The vehicle-mounted multi-connected screen-based testing device as recited in claim 3, wherein: the optical test module comprises an image acquisition module and a brightness acquisition module;
the image acquisition module comprises a first camera, a second camera and a third camera, and the first camera, the second camera and the third camera are sequentially and vertically arranged on the first sliding block, the fixed support and the second sliding block;
the brightness acquisition module is arranged on one side of the fixed support and is close to the first camera;
the image information includes current luminance data and current image data.
5. The vehicle-mounted multi-connected screen-based testing device as recited in claim 1, wherein: the conveying mechanism comprises a base, a belt conveying structure, a position sensing module and a clamping jaw structure, wherein the belt conveying structure, the position sensing module and the clamping jaw structure are fixed on the base; the clamping jaw structures are arranged on two sides of the tail end of the belt conveying structure and are aligned with the placement positions of the products to be tested;
the belt conveying structure is used for conveying the products to be tested to a testing station;
the position sensing module is used for detecting the position judgment of the product to be tested and sending a signal to the main control module when the product to be tested reaches a testing station;
the clamping jaw structure is used for lifting and/or overturning the product to be tested on the testing station, and moving the product to be tested to a testing area.
6. The vehicle-mounted multi-connected screen-based testing device as recited in claim 4, wherein: the first camera, the second camera and the third camera are all industrial cameras; the brightness acquisition module is a probe type brightness meter.
7. A test method based on a vehicle-mounted multi-connected screen is applied to the test device based on the vehicle-mounted multi-connected screen, and is characterized by comprising the following steps:
s1, conveying the product to be tested to a test area;
s2, driving the product to be tested to enter a test mode according to a preset test logic;
s3, controlling the optical test module to collect the image information of the product to be tested;
and S4, analyzing the image information and outputting a corresponding test result.
8. The vehicle-mounted multi-screen based test method according to claim 7, wherein the step S3 includes:
s31, acquiring the size information of the product to be tested, and driving a second motion shaft assembly to drive an image acquisition module to expand/reduce the image acquisition range;
s32, driving the first motion shaft assembly to drive the image acquisition module and the brightness acquisition module to reach a target position;
and S33, controlling the image acquisition module and the brightness acquisition module to respectively acquire current brightness data and current image data.
9. The vehicle-mounted multi-screen based test method according to claim 7, wherein the step S1 includes:
s11, controlling the belt conveying structure to convey the product to be tested to the testing station;
and S12, after the determination information of the position sensing module is received, controlling the clamping jaw structure to lift and/or turn over the product to be tested on the testing station, and moving the product to be tested to a testing area.
10. The vehicle-mounted multi-screen based test method as recited in claim 7, further comprising step S5: and when the test result is that the product is qualified, putting the product to be tested back to the belt conveying structure and conveying the product to the next station, otherwise, taking out the product to be tested.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054052A (en) * | 2023-08-16 | 2023-11-14 | 昆山迈致治具科技有限公司 | Screen brightness testing device, assembly method and testing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117054052A (en) * | 2023-08-16 | 2023-11-14 | 昆山迈致治具科技有限公司 | Screen brightness testing device, assembly method and testing method |
| CN117054052B (en) * | 2023-08-16 | 2024-04-05 | 昆山迈致治具科技有限公司 | Screen brightness testing device, assembly method and testing method |
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