Pixel detection system and method of using the same

Abstract

The embodiments of the present disclosure provide a pixel detection system and a method of using the same, which belong to the field of electronic control technology. The pixel detection system includes: a frame; a fixture, the fixture is arranged on the frame, and the fixture is used to hold the pixel to be detected; a lighting device, the lighting device includes a lighting board, and the lighting board is electrically connected to the pixel to be detected; an electrical parameter detection device, the electrical parameter detection device is electrically connected to the lighting board; a light intensity detection device, the light intensity detection device includes a light intensity sensor; a moving device, the moving device is movably arranged on the frame; a control device, the control device is electrically connected to the data output end of the electrical parameter detection device and the light intensity detection device. Through the processing scheme of the present disclosure, the current and voltage information and the light intensity information of the pixel are detected simultaneously, thereby improving the detection efficiency of the pixel detection system.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic control technology, and in particular to a pixel detection system and a method for using the same. Background Art

[0002] At present, with the development of society and the enrichment of entertainment life, lamps have become indispensable items in people's lives, and light emitting diodes (LEDs) are used in many scenes. In the production process of LED pixels, due to the problem of process flow, unqualified products will inevitably appear. How to efficiently detect qualified LED pixels has become a key issue. The existing pixel detection system needs to detect the relevant information of LED pixels separately for multiple times, and manual sorting is required, resulting in low efficiency. Summary of the invention

[0003] In view of this, an embodiment of the present disclosure provides a pixel detection system, aiming to solve the problem of low detection efficiency of existing pixel detection systems.

[0004] In a first aspect, an embodiment of the present disclosure provides a pixel detection system, comprising:

[0005] frame;

[0006] A jig, the jig being arranged on the frame and used for holding pixels to be detected;

[0007] A lighting device, the lighting device is arranged below the fixture, the lighting device comprises a lighting board, and the lighting board is electrically connected to the pixel to be detected;

[0008] An electrical parameter detection device, the electrical parameter detection device is electrically connected to the lighting board, the electrical parameter detection device comprises a voltage transmitter and a current transmitter, the voltage transmitter is used to detect the voltage value of the pixel to be detected after lighting, and the current transmitter is used to detect the current value of the pixel to be detected after lighting;

[0009] A light intensity detection device, the light intensity detection device is arranged above the fixture, the light intensity detection device comprises a light intensity sensor, and the light intensity sensor is used to detect the light intensity value of the pixel to be detected after being lit;

[0010] A moving device, the moving device is movably arranged on the frame;

[0011] A control device, wherein the control device is electrically connected to data output terminals of the electrical parameter detection device and the light intensity detection device, and the control device is electrically connected to a control terminal of the mobile device, and the control device is used to determine whether a detection result of the pixel to be detected is qualified based on output data of the electrical parameter detection device and the light intensity detection device, and control the mobile device to move the pixel to be detected out when the detection result is unqualified.

[0012] According to a specific implementation of the embodiment of the present disclosure, the lighting device further includes a first motor and a probe;

[0013] The probe is arranged on the lighting board, the first motor is connected to the lighting board, and the first motor drives the lighting board to move horizontally to a preset position corresponding to the fixture, so that the lighting board is electrically connected to the pixel to be detected through the probe.

[0014] According to a specific implementation of the embodiment of the present disclosure, the moving device includes a support frame, a conveyor belt, a second motor, two first cylinders and a magnet;

[0015] The support frame is fixed on the frame, the second motor is arranged at one end of the support frame, the two first cylinders are arranged on the outer side of the support frame, the magnet and the jig are located at the same horizontal position, the magnet cooperates with the two first cylinders to clamp the jig, and the second motor drives the conveyor belt to drive the jig to move horizontally along the support frame.

[0016] According to a specific implementation of the embodiment of the present disclosure, the light intensity detection device further includes a plurality of light shields;

[0017] The light-isolating cover covers the pixel to be detected;

[0018] The outer surface of the light-isolating cover is connected to the moving device, and the light intensity sensor is arranged on the inner surface of the light-isolating cover.

[0019] According to a specific implementation of the embodiment of the present disclosure, the light-isolating cover is a cylindrical structure with an opening at the bottom, and the diameter of the light-isolating cover is larger than the diameter of the pixel to be detected.

[0020] According to a specific implementation of the embodiment of the present disclosure, the mobile device further includes a clamping claw, a gantry and a guide rail;

[0021] One end of the clamp is connected to the gantry through a connecting piece, and the other end of the clamp is connected to the light shield. The guide rail is fixed to the frame, and the gantry slides along the guide rail.

[0022] According to a specific implementation of the embodiment of the present disclosure, a receiving tray is provided on the side of the support frame;

[0023] The clamping claw drives the light shield to move above the material receiving tray.

[0024] According to a specific implementation of the embodiment of the present disclosure, the moving device further includes a second cylinder, and the lighting device further includes a third cylinder;

[0025] The second cylinder is disposed at the top of the clamp, and the connecting member is movably disposed in the second cylinder to drive the clamp to clamp the light-isolating cover to movably cover the pixel to be detected, so that the light intensity sensor in the light-isolating cover collects the light intensity value corresponding to the pixel to be detected; and

[0026] The third cylinder is connected to the bottom of the lighting board, and the third cylinder drives the lighting board to approach or move away from the pixel to be detected.

[0027] According to a specific implementation of the embodiment of the present disclosure, the fixture is provided with placement holes arranged in an array, and the pixels to be detected are placed in the placement holes;

[0028] The moving device moves the light intensity detection device to the pixel to be detected at the placement hole.

[0029] In a second aspect, an embodiment of the present disclosure provides a method for using a pixel detection system, for using the pixel detection system as described in any one of the above disclosed embodiments, the method comprising:

[0030] A pixel detection system and a plurality of pixels to be detected are provided, wherein the pixel detection system comprises a frame, a fixture, a lighting device, an electrical parameter detection device, a light intensity detection device, a moving device and a control device;

[0031] Controlling the moving device to move the jig containing the pixels to be inspected to a preset inspection area;

[0032] Controlling the lighting device to light up the pixel to be detected at the preset position;

[0033] Controlling the electrical parameter detection device to collect the current value and voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect the light intensity value corresponding to each pixel to be detected;

[0034] Determine whether the current value is within a preset current value range and whether the voltage value is within a preset voltage value range, and determine whether the light intensity value is within a preset light intensity value range;

[0035] If the current value is within the preset current value range, the voltage value is within the preset voltage value range, and the light intensity value is within the preset light intensity range, then the pixel to be detected is determined to be qualified;

[0036] If the current value is not within the preset current value range or the voltage value is not within the preset voltage value range, or the light intensity value is not within the preset light intensity range, it is determined that the pixel to be detected is unqualified, and the moving device moves the pixel to be detected out.

[0037] According to a specific implementation of the embodiment of the present disclosure, the steps of controlling the electrical parameter detection device to collect the current value and the voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect the light intensity value corresponding to each pixel to be detected, include:

[0038] The voltage transmitter controlling the electrical parameter device collects the voltage value corresponding to the pixel to be detected through a lighting board electrically connected to the pixel to be detected; and,

[0039] The current transmitter controlling the electrical parameter device collects the current value corresponding to the pixel to be detected through a lighting board electrically connected to the pixel to be detected; and,

[0040] The moving device is controlled to move the light intensity detection device to the position of the pixel to be detected and to cover the pixel to be detected, and the light intensity sensor of the light intensity detection device collects the light intensity value corresponding to the pixel to be detected.

[0041] The pixel detection system in the embodiment of the present disclosure includes a frame; a fixture, the fixture is arranged on the frame, the fixture is used to hold the pixel to be detected; a lighting device, the lighting device is arranged below the fixture, the lighting device includes a lighting board, the lighting board is electrically connected to the pixel to be detected; an electrical parameter detection device, the electrical parameter detection device is electrically connected to the lighting board, the electrical parameter detection device includes a voltage transmitter and a current transmitter, the voltage transmitter is used to detect the voltage value of the pixel to be detected after lighting, and the current transmitter is used to detect the current value of the pixel to be detected after lighting; a light intensity detection device, the light intensity detection device is arranged Above the jig, the light intensity detection device includes a light intensity sensor, which is used to detect the light intensity value of the pixel to be detected after lighting; a moving device, which is movably arranged on the frame; a control device, which is electrically connected to the data output end of the electrical parameter detection device and the light intensity detection device, and the control device is electrically connected to the control end of the mobile device, and the control device is used to determine whether the pixel to be detected is qualified based on the output data of the electrical parameter detection device and the light intensity detection device, and when the pixel to be detected is detected to be unqualified, the mobile device is controlled to move the pixel to be detected out. Through the scheme disclosed in the present invention, the voltage value, current value and light intensity value of the pixel to be detected are detected at the same time, and the pixel to be detected that is determined to be unqualified is automatically moved out, thereby improving the detection efficiency of the pixel detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0043] Figure 1 A schematic diagram of the structure of a pixel detection system provided by an embodiment of the present disclosure;

[0044] Figure 2 A schematic diagram of the structure of another pixel detection system provided by an embodiment of the present disclosure;

[0045] Figure 3 A schematic diagram of the structure of another pixel detection system provided by an embodiment of the present disclosure;

[0046] Figure 4 A schematic diagram of the structure of another pixel detection system provided by an embodiment of the present disclosure;

[0047] Figure 5 A schematic diagram of the structure of another pixel detection system provided by an embodiment of the present disclosure;

[0048] Figure 6 A flowchart of a method for using a pixel detection system provided in an embodiment of the present disclosure.

[0049] Summary of reference numerals:

[0050] Pixel detection system 100;

[0051] Rack 110;

[0052] Fixture 120;

[0053] A lighting device 130, a first motor 131, a probe 132, a lighting plate 133, and a third cylinder 134;

[0054] Receiving tray 140;

[0055] Light intensity detection device 150, light shield 151, light intensity sensor 152;

[0056] Moving device 160 , supporting frame 161 , conveyor belt 162 , second motor 163 , first cylinder 164 , clamp 165 , gantry 166 , guide rail 167 , second cylinder 168 . DETAILED DESCRIPTION

[0057] The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

[0058] The following describes the embodiments of the present disclosure through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. The present disclosure can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present disclosure.

[0059] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.

[0060] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present disclosure. The drawings only show components related to the present disclosure rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0061] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0062] See also Figure 1 , a schematic diagram of a pixel detection system provided by an embodiment of the present disclosure. Figure 1 As shown, the pixel detection system 100 mainly includes:

[0063] Rack 110;

[0064] A fixture 120, wherein the fixture 120 is disposed on the frame 110, and the fixture 120 is used to hold pixels to be detected;

[0065] A lighting device 130, wherein the lighting device 130 is disposed below the fixture 120, and the lighting device 130 includes a lighting board 133, and the lighting board 133 is electrically connected to the pixel to be detected;

[0066] An electrical parameter detection device (not shown in the figure), the electrical parameter detection device is electrically connected to the lighting board 133, and the electrical parameter detection device includes a voltage transmitter and a current transmitter, the voltage transmitter is used to detect the voltage value of the pixel to be detected after lighting, and the current transmitter is used to detect the current value of the pixel to be detected after lighting;

[0067] A light intensity detection device 150, wherein the light intensity detection device 150 is disposed above the fixture 120, and the light intensity detection device 150 comprises a light intensity sensor 152, wherein the light intensity sensor 152 is used to detect the light intensity value of the pixel to be detected after being lit;

[0068] A moving device 160, wherein the moving device 160 is movably disposed on the frame 110;

[0069] A control device (not shown in the figure), the control device is electrically connected to the data output end of the electrical parameter detection device and the light intensity detection device 150, and the control device is electrically connected to the control end of the moving device 160, the control device is used to determine whether the detection result of the pixel to be detected is qualified according to the output data of the electrical parameter detection device and the light intensity detection device 150, and control the moving device 160 to move the pixel to be detected out when the detection result is unqualified.

[0070] Taking into account that during the production of LED pixels, due to problems with the process flow, unqualified products will inevitably appear, so it is necessary to perform current parameter, voltage parameter, and light intensity detection on the LED pixels after completion, and sort out qualified products from unqualified products. The embodiment of the present disclosure provides a pixel detection system 100, which can be applied to the scenario of assembly line production of LED pixels to synchronously detect the current parameters, voltage parameters, and light intensity of the pixels.

[0071] During specific assembly, the jig 120 is set on the frame 110, the moving device 160 is movably set on the frame 110, the lighting device 130 is set below the jig 120, the light intensity detection device 150 is set above the jig 120, the lighting board 133 of the lighting device 130 is electrically connected to the pixel to be detected, and then the electrical parameter detection device is connected to the lighting board 133, and the data output ends of the electrical parameter device and the light intensity detection device 150 are electrically connected to the control device.

[0072] When in use, the moving device 160 moves the jig 120 holding the pixel to be detected onto the frame 110, and then the moving device 160 drives the light intensity detection device 150 to move toward the jig 120 so that the light intensity detection device 150 covers the pixel to be detected, and the lighting device 130 moves horizontally to the preset position of the jig 120 so that the lighting plate 133 of the lighting device 130 is electrically connected to the pixel to be detected, so that the voltage transmitter detects the voltage value of the pixel to be detected after lighting, the current transmitter detects the current value of the pixel to be detected after lighting, and the light intensity sensor 152 of the light intensity detection device 150 detects the light intensity value of the pixel to be detected.

[0073] The data output end of the voltage transmitter, the data output end of the current transmitter and the data output end of the light intensity sensor 152 are electrically connected to the control device. After the voltage transmitter and the current transmitter detect the voltage value and the current value of the pixel to be detected, and the light intensity sensor 152 detects the light intensity value of the pixel to be detected, the voltage value, the current value and the light intensity value of the pixel to be detected are transmitted to the control device through the data output end. The control device determines whether the detection result of the pixel to be detected is qualified based on the output data of the electrical parameter detection device and the light intensity detection device 150. When the detection result is unqualified, the moving device 160 is controlled to move the pixel to be detected out, and the moved pixel to be detected can be recycled as waste.

[0074] In the disclosed embodiment, after the lighting device lights up the pixel to be detected, the electrical parameter detection device starts to detect the current parameter and voltage parameter of the pixel to be detected, and the light intensity detection device also detects the light intensity of the pixel to be detected at the same time, and transmits the detected current parameter, voltage parameter and light intensity data to the control device, which determines whether the value collected in real time is qualified. If the value is within the upper and lower ranges set by the program, the product is determined to be qualified, and if the value is outside the upper and lower ranges set by the program, the product is determined to be unqualified. Based on the comprehensive judgment results, the control device determines that the unqualified pixels to be detected are moved out by the moving device, thereby realizing automation during pixel detection and improving detection efficiency and detection accuracy.

[0075] Based on the above embodiments, Figure 2 As shown, the lighting device 130 further includes a first motor 131 and a probe 132;

[0076] The probe 132 is disposed on the lighting board 133 , and the first motor 131 is connected to the lighting board 133 . The first motor 131 drives the lighting board 133 to move horizontally to a preset position corresponding to the fixture 120 , so that the lighting board 133 is electrically connected to the pixel to be detected through the probe 132 .

[0077] When in use, a plurality of probes 132 may be arranged on the lighting board 133, and the first motor 131 is connected to the lighting board 133. When the first motor 131 is working, the lighting board 133 is driven to move horizontally to a preset position corresponding to the jig 120, so that the heads of every two probes 132 are electrically connected to one of the pixels to be detected and light up the pixel to be detected. The tail of the probe 132 is connected to the electrical parameter detection device so that the voltage transmitter of the electrical parameter detection device detects the voltage value of the pixel to be detected after lighting, and the current transmitter of the electrical parameter detection device detects the current value of the pixel to be detected after lighting. At the same time, the lighting device 130 can also be provided with modules, insulating plates, fixing plates, cylinder connecting plates, linkage plates and lighting board mounting seats between multiple probes 132 to ensure that short circuit, poor contact or false touch will not occur when power is turned on. A left cylinder and a right cylinder can also be provided. The cylinder is connected to the probe 132. The probe 132 can include a left probe and a right probe. When started, the left cylinder drives the left probe to move to the right, and the right cylinder drives the right probe to move to the left, so that the head of one of the left probes and the head of one of the right probes cooperate to clamp the pins at the bottom of the pixel to be detected, so that the lighting board 133 is electrically connected to the bottom of the pixel to be detected.

[0078] Based on the above embodiments, Figure 3 As shown, the moving device 160 includes a support frame 161, a conveyor belt 162, a second motor 163, two first cylinders 164 and a magnet (not shown in the figure);

[0079] The support frame 161 is fixed on the frame 110, the second motor 163 is arranged at one end of the support frame 161, the two first cylinders 164 are arranged on the outer side of the support frame 161, the magnet and the jig 120 are located at the same horizontal position, the magnet and the two first cylinders 164 cooperate to clamp the jig 120, and the second motor 163 drives the conveyor belt 162 to drive the jig 120 to move horizontally along the support frame 161.

[0080] During specific assembly, the support frame 161 is fixed on the frame 110, the second motor 163 is arranged at one end of the support frame 161, the two first cylinders 164 are arranged on the outer side of the support frame 161, and the magnet and the fixture 120 are located at the same horizontal position.

[0081] In a specific implementation, considering that manually replacing or fixing the jig 120 during production inspection will increase labor costs and reduce inspection efficiency, the conveyor belt 162 can be driven by the second motor 163 to drive the jig 120 to move horizontally along the support frame 161. When the jig 120 moves to a preset position, the jig 120 is clamped by the two first cylinders 164, and the jig 120 is adsorbed by the magnet to fix the position of the jig 120. Of course, a robotic arm or other device may also be used to fix the jig 120. At the same time, the moving device 160 may also be provided with an anti-jump baffle, a conveyor belt support plate, a conveyor belt pulley, a conveyor belt pulley fixing pin, left and right supporting profiles, a linkage shaft proximity switch sensor, a proximity switch mounting seat, a magnet mounting seat, a blocking cylinder and a position sensor and other components to cooperate with the movement or fixation of the jig 120. When the position sensor jig 120 moves to a preset position, the magnet cooperates with the first cylinder 164 to fix the jig 120, and at the same time, it can prevent the jig 120 from slipping or moving unsteadily during the movement of the jig 120.

[0082] Based on the above embodiments, Figure 4 As shown, the light intensity detection device 150 further includes a plurality of light shields 151;

[0083] The light-isolating cover 151 covers the pixel to be detected;

[0084] The outer surface of the light-isolating cover 151 is connected to the moving device 160 , and the light intensity sensor 152 is disposed on the inner surface of the light-isolating cover 151 .

[0085] Optionally, the light-isolating cover 151 is a cylindrical structure with an opening at the bottom, and the diameter of the light-isolating cover 151 is larger than the diameter of the pixel to be detected.

[0086] During use, considering that when the light intensity of the pixel to be detected is detected, the external light source will affect the detection result, a plurality of light-shielding covers 151 can be provided, and the light-shielding covers 151 cover the pixel to be detected, and the light intensity sensor 152 is provided on the inner surface of the light-shielding cover 151, so that the external interference factors can be reduced during the detection. At the same time, the light-shielding cover 151 is a cylindrical structure with an opening at the bottom, and the diameter of the light-shielding cover 151 is larger than the diameter of the pixel to be detected. Of course, light-shielding covers 151 of different specifications can be selected according to the different shapes and sizes of the pixel to be detected. The outer surface of the light-shielding cover 151 is connected to the mobile device 160 so that the mobile device 160 can move the light-shielding cover 151 to different positions corresponding to the pixels to be detected.

[0087] Based on the above embodiments, Figure 5 As shown, the mobile device 160 further includes a clamp 165, a gantry 166 and a guide rail 167;

[0088] One end of the clamp 165 is connected to the gantry 166 via a connecting piece, and the other end of the clamp 165 is connected to the light shield 151 . The guide rail 167 is fixed to the frame 110 , and the gantry 166 slides along the guide rail 167 .

[0089] Furthermore, the fixture 120 is provided with placement holes arranged in an array, and the pixels to be detected are placed in the placement holes;

[0090] The moving device 160 moves the light intensity detection device 150 to the pixel to be detected at the placement hole.

[0091] Furthermore, a receiving tray 140 is provided on the side of the support frame 161;

[0092] The clamping claw 165 drives the light shield 151 to move above the receiving tray 140 .

[0093] In the specific implementation, considering that when the light intensity detection is performed on the pixel to be detected, after the pixel to be detected at the preset position is detected, the light intensity detection device 150 needs to be moved to other positions for detection. One end of the clamp 165 can be connected to the outer surface of the light shield 151, and the other end of the clamp 165 is connected to the gantry 166. The gantry 166 slides along the guide rail 167 to drive the clamp 165 to move above the placement hole of the jig 120. The number and size of the placement holes set on the jig 120 can be changed according to the detection amount and the specifications of the detection pixel. At the same time, the receiving tray 140 is set at the side position of the support frame 161. When the control device determines that the pixel to be detected is unqualified, the clamp 165 clamps the pixel to be detected and moves it above the receiving tray 140, and releases the clamp 165 so that the pixel to be detected falls into the receiving tray 140. Of course, the mobile device 160 can also be provided with silicone claws, a clamp mounting plate, a position sensing plate, a guide rail pillar mounting foot, a guide rail pillar, a guide rail mounting plate, a gantry connecting plate, a clamp assembly guide rail, a gantry module connecting plate, a module mounting plate, a module pillar mounting foot and a connector fixing seat and other components, so that the clamp 165 can remain stable when driving the light isolation cover 151 to cover the pixel to be detected, and the clamp 165 will not damage the light isolation cover 151 or the pixel to be detected during the clamping action.

[0094] On the basis of the above embodiment, the moving device 160 further includes a second cylinder 168, and the lighting device 130 further includes a third cylinder 134;

[0095] The second cylinder 168 is disposed on the top of the clamp 165, and the connecting member is movably disposed in the second cylinder 168 to drive the clamp 165 to clamp the light shield 151 to movably cover the pixel to be detected, so that the light intensity sensor 152 in the light shield 151 collects the light intensity value corresponding to the pixel to be detected; and,

[0096] The third cylinder 134 is connected to the bottom of the lighting board 133, and the third cylinder 134 drives the lighting board 133 to approach or move away from the pixel to be detected.

[0097] When in use, the second cylinder 168 drives the clamping jaw 165 to move toward the pixel to be detected, so that the light shield 151 connected to the clamping jaw 165 covers the pixel to be detected. At the same time, the third cylinder 134 drives the lighting board 133 to move toward the pixel to be detected, so that the lighting board 133 is electrically connected to the pixel to be detected and lights up the pixel to be detected. After the detection is completed, the second cylinder 168 drives the clamping jaw 165 away from the pixel to be detected, and the third cylinder 134 drives the lighting board 133 away from the pixel to be detected.

[0098] The pixel detection system of the above-mentioned embodiment of the present disclosure is suitable for automated assembly line operations. The jig can be moved in and out of the equipment along with the pushing mechanism, and the current parameters, voltage parameters and light intensity of LED pixels can be detected simultaneously. The pixels to be detected that are judged unqualified can be automatically sorted out by the clamp, so as to achieve seamless connection between the front and rear processes. The control device integrates the four functions of current parameter detection, voltage parameter detection, lighting light intensity detection and automatic sorting into one, achieving the level of intelligent automation. At the same time, the work efficiency far exceeds that of manual labor, the cost is reduced, and since there is no need for manual participation, the errors caused by human factors are reduced, and the stability of product quality is improved.

[0099] like Figure 6 As shown, the embodiment of the present disclosure also provides a method for using a pixel detection system, the method comprising:

[0100] A pixel detection system and a plurality of pixels to be detected are provided, wherein the pixel detection system comprises a frame, a fixture, a lighting device, an electrical parameter detection device, a light intensity detection device, a moving device and a control device;

[0101] S101, controlling the moving device to move the fixture containing the pixels to be inspected to a preset inspection area;

[0102] During specific implementation, the second motor is controlled to drive the conveyor belt to move the fixture to the preset detection area.

[0103] S102, controlling the lighting device to light up the pixel to be detected at the preset position;

[0104] In a specific implementation, the probe is controlled to connect to the pin of the pixel to be detected at the preset position and energize to light up the pixel to be detected. For example, when the placement holes of the fixture are 5 rows and 5 columns, a control program A can be set in the control device. The value of control program A is N, and the logic is N=n+1 (n is the value before the command is executed). The initial value of N is 1. When the value of N is 5, the command is executed again, and N automatically returns to the initial value 1. The value N of the first loop control program A is the initial value 1, so the first loop program outputs the moving coordinate x1 value of the clamp and the moving coordinate y1 value of the lighting board (output coordinate rule: when the value of control program A is N (N≤5), the coordinate code of the clamp is X, and the coordinate code of the lighting board is Y. The initial displacement coordinate of the clamp is x0, and the initial displacement coordinate of the lighting board is y0. When the value of control program A is N=1, the displacement coordinate of the clamp is x1, and the displacement coordinate of the lighting board is y1. When the value of control program A is N= 2, the displacement coordinate of the clamp is x2, and the displacement coordinate of the lighting board is y2. When the value N of the control program A is 3, the displacement coordinate of the clamp is x3, and the displacement coordinate of the lighting board is y3. When the value N of the control program A is 4, the displacement coordinate of the clamp is x4, and the displacement coordinate of the lighting board is y4. When the value N of the control program A is 5, the displacement coordinate of the clamp is x5, and the displacement coordinate of the lighting board is y5. The control device can edit the coordinates x1, x2, x3, x4, x5, y1, y2, y3, y4, y5. ). The clamp and the lighting board are displaced to the corresponding positions according to the coordinates output by the control program A, and the probe set on the lighting board is electrically connected to the pin corresponding to the bottom of the pixel to be detected and powered on. After the program is cycled 5 times, the detection of the pixel to be detected on the fixture is completed.

[0105] For example, according to the coordinate displacement output by the control program A, the mechanical action before the detection is completed: after the control program outputs the coordinates, the control device controls the clamp of the moving device and the first motor of the lighting device to start working at the same time according to the coordinate position. The clamp is controlled by the control device and accurately displaced to the coordinate x1 value to ensure that the clamp is accurately displaced to the top of the pixel to be detected in the first row of the fixture. The clamp stops working and the second cylinder is started to lower the clamp until the light shield covers the pixel to be detected. At the same time, the first sensor in the second cylinder sends a signal that the cylinder has been lowered. The first motor is controlled by the control device and precisely displaced to the coordinate y1 value to ensure that the lighting board is displaced to the bottom of the pixel to be detected on the fixture, and the third cylinder is started to bring the lighting board close to the pixel to be detected so that the probe is stuck in the four pins at the bottom of the pixel to be detected. At the same time, the first sensor in the third cylinder transmits a signal that the cylinder lifting is completed, and then the solenoid valve is started to control the cylinder to drive the cylinder connecting plate, linkage plate, fixed plate, and insulating plate to move, so that the probe supports the four pins at the bottom of the pixel to be detected, and the sensor on the cylinder transmits a signal, the lighting board is energized, and the pixel to be detected is lit.

[0106] S103, controlling the electrical parameter detection device to collect the current value and voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect the light intensity value corresponding to each pixel to be detected;

[0107] For example, the probe moves to the first row according to the coordinates output by the program, and the probe lights up the five pixels to be detected in the first row. At the same time, the electrical parameter detection device electrically connected to the lighting board begins to detect the electrical parameters of the pixels to be detected in real time, the voltage transmitter of the electrical parameter detection device detects the voltage value of the pixels to be detected, and the current transmitter of the electrical parameter detection device detects the current value of the pixels to be detected. In addition, the clamp moves to the first row according to the coordinates output by the program at the same time, driving the light shield to move and cover the pixels to be detected in the first row, and the light intensity sensor in the light shield begins to detect the light intensity value of the pixels to be detected.

[0108] S104, determining whether the current value is within a preset current value range and whether the voltage value is within a preset voltage value range, and determining whether the light intensity value is within a preset light intensity value range;

[0109] In the specific implementation, the voltage transmitter is controlled to detect the voltage value of the pixel to be detected, the current transmitter is controlled to detect the current value of the pixel to be detected, and the light intensity sensor is controlled to detect the light intensity value of the pixel to be detected, and then the data is transmitted to the control device. Of course, after the voltage transmitter and the current transmitter detect the voltage value and the current value of the pixel to be detected, the information can be isolated and converted and then communicated with the control device through the Modbus communication expansion module. In addition, the light intensity sensor can use the GY-49 light intensity sensor module (the core chip is the MAX44009 sensor). After lighting the LED pixel, the GY-49 light intensity sensor module detects the light intensity of the LED chip on the pixel to be detected, and converts it into a digital signal to communicate with the single-chip microcomputer. After the single-chip microcomputer processes the communication protocol, it communicates with the control device through the Modbus communication expansion module. The control device determines whether the current value and the voltage value are within the preset current value and voltage value range, and whether the light intensity value is within the preset light intensity range, thereby determining the next operation process.

[0110] If the current value is within the preset current value range, the voltage value is within the preset voltage value range, and the light intensity value is within the preset light intensity range, then step S105 is executed to determine that the pixel to be detected is qualified;

[0111] If the current value is not within the preset current value range or the voltage value is not within the preset voltage value range, or the light intensity value is not within the preset light intensity range, step S106 is executed to determine that the pixel to be detected is unqualified, and the mobile device moves the pixel to be detected out.

[0112] For example, if the current value is 1A, the voltage value is 5V, the preset current value range is 0.5A to 2A, the preset voltage value range is 3V to 8V, the light intensity value is 20cd, and the preset light intensity value range is 10cd to 50cd, then the pixel to be detected is determined to be qualified; if one of the current value, voltage value or light intensity value is not within the preset range, then the pixel to be detected is determined to be unqualified, and the clamp can be controlled to clamp the pixel to be detected to the receiving tray.

[0113] On the basis of the above embodiment, the step of controlling the electrical parameter detection device to collect the current value and the voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect the light intensity value corresponding to each pixel to be detected in step S103 includes:

[0114] The voltage transmitter controlling the electrical parameter device collects the voltage value corresponding to the pixel to be detected through a lighting board electrically connected to the pixel to be detected; and,

[0115] The current transmitter controlling the electrical parameter device collects the current value corresponding to the pixel to be detected through a lighting board electrically connected to the pixel to be detected; and,

[0116] The moving device is controlled to move the light intensity detection device to the position of the pixel to be detected and to cover the pixel to be detected, and the light intensity sensor of the light intensity detection device collects the light intensity value corresponding to the pixel to be detected.

[0117] In a specific implementation, the lighting board may be provided with a plurality of movable left probes and a plurality of right probes, the head of a left probe and the head of a right probe cooperate to clamp a pin at the bottom of the pixel to be detected, the tail of the left probe and the tail of the right probe are electrically connected to the electrical parameter device, when the lighting device lights up the pixel to be detected, the electrical parameter device collects the voltage value and current value corresponding to the pixel to be detected through the left probe and the right probe, at the same time, the light intensity detection device may be provided with a light shield, so that when performing light intensity detection, the interference of external light on the detection result is reduced, the light shield is connected to the mobile device, the light intensity sensor is arranged in the light shield, the mobile device is controlled to drive the light shield to cover the pixel to be detected, and the light intensity sensor collects the light intensity value corresponding to the pixel to be detected. The voltage value, current value and light intensity value after detection can be transmitted to the control device in real time for subsequent judgment operations, of course, the voltage value, current value and light intensity value after detection can also be transmitted in real time and stored in a preset storage space for subsequent data analysis.

[0118] To summarize, the pixel detection system of the above-mentioned embodiment of the present disclosure, by setting up a frame, a fixture, a lighting device, an electrical parameter detection device, a light intensity detection device, a moving device and a control device, can realize the simultaneous detection of the current and voltage information and light intensity information of the pixel, comprehensively judge whether the pixel is qualified, and automatically sort out unqualified pixels, thereby improving the detection efficiency of the pixel detection system.

[0119] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present disclosure should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A pixel detection system, characterized in that: include: frame; A jig, the jig being arranged on the frame and used for holding pixels to be detected; A lighting device, the lighting device is arranged below the fixture, and the lighting device comprises a lighting plate, The lighting board is electrically connected to the pixel to be detected; An electrical parameter detection device, the electrical parameter detection device is electrically connected to the lighting board, the electrical parameter detection device comprises a voltage transmitter and a current transmitter, the voltage transmitter is used to detect the voltage value of the pixel to be detected after lighting, and the current transmitter is used to detect the current value of the pixel to be detected after lighting; A light intensity detection device, the light intensity detection device is arranged above the fixture, the light intensity detection device includes a light intensity sensor, the light intensity sensor is used to detect the light intensity value of the pixel to be detected after lighting, the light intensity detection device also includes a plurality of light isolation covers, the light isolation covers cover the pixels to be detected, the outer surface of the light isolation covers is connected to the moving device, and the light intensity sensor is arranged on the inner surface of the light isolation covers; A moving device, the moving device is movably arranged on the frame; A control device, wherein the control device is electrically connected to data output terminals of the electrical parameter detection device and the light intensity detection device, and the control device is electrically connected to a control terminal of the mobile device, and the control device is used to determine whether the pixel to be detected is qualified based on output data of the electrical parameter detection device and the light intensity detection device, and when the pixel to be detected is detected to be unqualified, control the mobile device to move the pixel to be detected out.

2. The system according to claim 1, characterized in that The lighting device also includes a first motor and a probe; The probe is arranged on the lighting board, the first motor is connected to the lighting board, and the first motor drives the lighting board to move horizontally to a preset position corresponding to the fixture, so that the lighting board is electrically connected to the pixel to be detected through the probe.

3. The system according to claim 1, characterized in that The moving device comprises a support frame, a conveyor belt, a second motor, two first cylinders and a magnet; The support frame is fixed on the frame, the second motor is arranged at one end of the support frame, the two first cylinders are arranged on the outer side of the support frame, the magnet and the jig are located at the same horizontal position, the magnet cooperates with the two first cylinders to clamp the jig, and the second motor drives the conveyor belt to drive the jig to move horizontally along the support frame.

4. The system according to claim 3, characterized in that The light-isolating cover is a cylindrical structure with an opening at the bottom, and the diameter of the light-isolating cover is larger than the diameter of the pixel to be detected.

5. The system according to claim 4, characterized in that The mobile device also includes a clamping claw, a gantry and a guide rail; One end of the clamp is connected to the gantry through a connecting piece, and the other end of the clamp is connected to the light shield. The guide rail is fixed to the frame, and the gantry slides along the guide rail.

6. The system according to claim 5, characterized in that A material receiving tray is provided on the side of the support frame; The clamping claw drives the light shield to move above the material receiving tray.

7. The system according to claim 6, characterized in that The moving device further includes a second cylinder, and the lighting device further includes a third cylinder; The second cylinder is disposed at the top of the clamp, and the connecting member is movably disposed in the second cylinder to drive the clamp to clamp the light-isolating cover to movably cover the pixel to be detected, so that the light intensity sensor in the light-isolating cover collects the light intensity value corresponding to the pixel to be detected; and The third cylinder is connected to the bottom of the lighting board, and the third cylinder drives the lighting board to approach or move away from the pixel to be detected.

8. The system according to claim 1, characterized in that The fixture is provided with placement holes arranged in an array, and the pixels to be detected are placed in the placement holes; The moving device moves the light intensity detection device to the pixel to be detected at the placement hole.

9. A method for using a pixel detection system, characterized in that: The pixel detection system applied to any one of claims 1 to 8, wherein the method comprises: A pixel detection system and a plurality of pixels to be detected are provided, wherein the pixel detection system comprises a frame, a fixture, a lighting device, an electrical parameter detection device, a light intensity detection device, a moving device and a control device; Controlling the moving device to move the jig containing the pixels to be inspected to a preset inspection area; Controlling the lighting device to light up the pixel to be detected at the preset position; Controlling the electrical parameter detection device to collect the current value and voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect the light intensity value corresponding to each pixel to be detected; Determine whether the current value is within a preset current value range and whether the voltage value is within a preset voltage value range, and determine whether the light intensity value is within a preset light intensity value range; If the current value is within the preset current value range, the voltage value is within the preset voltage value range, and the light intensity value is within the preset light intensity range, then the pixel to be detected is determined to be qualified; If the current value is not within the preset current value range or the voltage value is not within the preset voltage value range, or the light intensity value is not within the preset light intensity range, it is determined that the pixel to be detected is unqualified, and the moving device moves the pixel to be detected out.

10. The method according to claim 9, characterized in that The steps of controlling the electrical parameter detection device to collect the current value and the voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect the light intensity value corresponding to each pixel to be detected, include: The voltage transmitter controlling the electrical parameter device collects the voltage value corresponding to the pixel to be detected through a lighting board electrically connected to the pixel to be detected; and, The current transmitter controlling the electrical parameter device collects the current value corresponding to the pixel to be detected through a lighting board electrically connected to the pixel to be detected; and, The moving device is controlled to move the light intensity detection device to the position of the pixel to be detected and to cover the pixel to be detected, and the light intensity sensor of the light intensity detection device collects the light intensity value corresponding to the pixel to be detected.

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