CN111175030A - Pixel detection system and method of use thereof - Google Patents

Pixel detection system and method of use thereof Download PDF

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Publication number
CN111175030A
CN111175030A CN202010139149.3A CN202010139149A CN111175030A CN 111175030 A CN111175030 A CN 111175030A CN 202010139149 A CN202010139149 A CN 202010139149A CN 111175030 A CN111175030 A CN 111175030A
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China
Prior art keywords
detected
pixel
light intensity
detection device
preset
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CN202010139149.3A
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Chinese (zh)
Inventor
郭惠民
杨万山
胡永宝
傅姝炀
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Pujiang Sansi Optoelectronics Technology Co Ltd
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Pujiang Sansi Optoelectronics Technology Co Ltd
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Priority to CN202010139149.3A priority Critical patent/CN111175030A/en
Publication of CN111175030A publication Critical patent/CN111175030A/en
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/02—Testing optical properties
    • G01M11/0207—Details of measuring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/342—Sorting according to other particular properties according to optical properties, e.g. colour
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34—Sorting according to other particular properties
    • B07C5/344—Sorting according to other particular properties according to electric or electromagnetic properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2601—Apparatus or methods therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/26—Testing of individual semiconductor devices
    • G01R31/2607—Circuits therefor
    • G01R31/2632—Circuits therefor for testing diodes
    • G01R31/2635—Testing light-emitting diodes, laser diodes or photodiodes
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/44—Testing lamps

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The embodiment of the disclosure provides a pixel detection system and a using method thereof, belonging to the technical field of electric control. Wherein the pixel detection system comprises: a frame; the jig is arranged on the rack and used for containing the pixels to be detected; the lighting device comprises a lighting plate, and the lighting plate is electrically connected with the pixels to be detected; an electrical parameter detection device electrically connected to the lighting panel; a light intensity detection device including a light intensity sensor; the mobile device is movably arranged on the rack; and the control device is electrically connected with the data output ends of the electrical parameter detection device and the light intensity detection device. Through the processing scheme disclosed by the invention, the current and voltage information and the light intensity information of the pixel are simultaneously detected, and the detection efficiency of the pixel detection system is improved.

Description

Pixel detection system and method of use thereof
Technical Field
The present disclosure relates to the field of electronic control technologies, and in particular, to a pixel detection system and a method for using the same.
Background
At present, with the development of society and the abundance of entertainment life, lamps become essential articles in people's life, and Light Emitting Diodes (LEDs) are used in many scenes. In the manufacturing process of the LED pixel, the problem of unqualified products is inevitably caused due to the problem of the process flow, and how to efficiently detect the qualified LED pixel becomes a key problem. The existing pixel detection system needs to separately detect relevant information of LED pixels for multiple times and needs manual sorting, so that the problem of low efficiency is caused.
Disclosure of Invention
In view of this, the embodiments of the present disclosure provide a pixel detection system, which aims to solve the problem of low detection efficiency of the existing pixel detection system.
In a first aspect, an embodiment of the present disclosure provides a pixel detection system, including:
a frame;
the jig is arranged on the rack and used for containing the pixels to be detected;
the lighting device is arranged below the jig and comprises a lighting plate, and the lighting plate is electrically connected with the pixels to be detected;
the electrical parameter detection device is electrically connected with the lighting plate and comprises a voltage transmitter and a current transmitter, the voltage transmitter is used for detecting the voltage value of the lighted pixel to be detected, and the current transmitter is used for detecting the current value of the lighted pixel to be detected;
the light intensity detection device is arranged above the jig and comprises a light intensity sensor, and the light intensity sensor is used for detecting the light intensity numerical value of the lightened pixel to be detected;
the mobile device is movably arranged on the rack;
the control device is electrically connected with the data output ends of the electrical parameter detection device and the light intensity detection device, the control device is electrically connected with the control end of the mobile device, and the control device is used for determining whether the detection result of the pixel to be detected is qualified or not according to the output data of the electrical parameter detection device and the light intensity detection device, and controlling the mobile device to move out the pixel to be detected when the detection result is unqualified.
According to a specific implementation manner of the embodiment of the present disclosure, the lighting device further includes a first motor and a probe;
the probe is arranged on the lighting plate, the first motor is connected with the lighting plate, and the first motor drives the lighting plate to horizontally move to the preset position corresponding to the jig, so that the lighting plate is electrically connected with the pixels to be detected through the probe.
According to a specific implementation manner of the embodiment of the disclosure, the moving device comprises a support frame, a conveyor belt, a second motor, two first cylinders and a magnet;
the support frame is fixed in the frame, the second motor set up in support frame one end, two first cylinders set up in the support frame lateral surface, magnet with the tool is located same horizontal position, magnet and two first cylinder cooperation centre gripping the tool, the second motor drive the conveyer belt drives the tool is followed support frame horizontal migration.
According to a specific implementation manner of the embodiment of the disclosure, the light intensity detection device further comprises a plurality of light shielding covers;
the light shielding cover covers the pixels to be detected;
the outer surface of the light shield is connected with the moving device, and the light intensity sensor is arranged on the inner surface of the light shield.
According to a specific implementation manner of the embodiment of the disclosure, the light shielding cover is a cylindrical structure with an opening at the bottom, and the diameter of the light shielding cover is larger than that of the pixel to be detected.
According to a specific implementation manner of the embodiment of the disclosure, the moving device further comprises a clamping jaw, a portal frame and a guide rail;
clamping jaw one end pass through the connecting piece with the portal frame is connected, the clamping jaw other end with the light shield is connected, the guide rail is fixed in the frame, the portal frame is followed the guide rail slides.
According to a specific implementation manner of the embodiment of the disclosure, a material receiving disc is arranged on the side face of the support frame;
the clamping jaw drives the light shielding cover to move to the position above the material receiving disc.
According to a specific implementation manner of the embodiment of the present disclosure, the moving device further includes a second cylinder, and the lighting device further includes a third cylinder;
the second cylinder is arranged at the top of the clamping jaw, and the connecting piece is movably arranged in the second cylinder to drive the clamping jaw to clamp the light shielding cover to movably cover the pixel to be detected, so that the light intensity sensor in the light shielding cover acquires a light intensity numerical value corresponding to the pixel to be detected; and the number of the first and second groups,
and the third cylinder is connected with the bottom of the lighting plate and drives the lighting plate to be close to or far away from the pixels to be detected.
According to a specific implementation manner of the embodiment of the disclosure, the jig is provided with placing holes arranged in an array, and the pixels to be detected are placed in the placing holes;
and the moving device moves the light intensity detection device to the position of the pixel to be detected of the placing hole.
In a second aspect, an embodiment of the present disclosure provides a method for using a pixel detection system, which is used in any one of the above-mentioned embodiments, and includes:
providing a pixel detection system and a plurality of pixels to be detected, wherein the pixel detection system comprises a rack, a jig, 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 detected to a preset detection area;
controlling the lighting device to light the pixel to be detected at the preset position;
controlling the electrical parameter detection device to acquire a current numerical value and a voltage numerical value corresponding to each pixel to be detected, and controlling the light intensity detection device to acquire a light intensity numerical value corresponding to each pixel to be detected;
judging whether the current value is within a preset current value range and the voltage value is within a preset voltage value range, and judging 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, determining that the pixel to be detected is qualified;
and if the current value is not in a preset current value range or the voltage value is not in a preset voltage value range, or the light intensity value is not in a preset light intensity range, determining that the pixel to be detected is unqualified, and moving the pixel to be detected out by the mobile device.
According to a specific implementation manner of the embodiment of the present disclosure, the step of controlling the electrical parameter detection device to collect a current value and a voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect a light intensity value corresponding to each pixel to be detected includes:
controlling a voltage transmitter of the electrical parameter device to acquire a voltage value corresponding to the pixel to be detected through a lighting plate electrically connected with the pixel to be detected; and the number of the first and second electrodes,
controlling a current transmitter of the electrical parameter device to acquire a current numerical value corresponding to the pixel to be detected through a lighting plate electrically connected with the pixel to be detected; and the number of the first and second electrodes,
and controlling the moving device to move the light intensity detection device to the position of the pixel to be detected and movably cover the pixel to be detected, wherein a light intensity sensor of the light intensity detection device acquires a light intensity numerical value corresponding to the pixel to be detected.
The pixel detection system in the embodiment of the present disclosure includes a frame; the jig is arranged on the rack and used for containing the pixels to be detected; the lighting device is arranged below the jig and comprises a lighting plate, and the lighting plate is electrically connected with the pixels to be detected; the electrical parameter detection device is electrically connected with the lighting plate and comprises a voltage transmitter and a current transmitter, the voltage transmitter is used for detecting the voltage value of the lighted pixel to be detected, and the current transmitter is used for detecting the current value of the lighted pixel to be detected; the light intensity detection device is arranged above the jig and comprises a light intensity sensor, and the light intensity sensor is used for detecting the light intensity numerical value of the lightened pixel to be detected; the mobile device is movably arranged on the rack; the control device is electrically connected with the data output ends of the electrical parameter detection device and the light intensity detection device, the control device is electrically connected with the control end of the mobile device, and the control device is used for judging whether the pixel to be detected is qualified or not according to the output data of the electrical parameter detection device and the light intensity detection device, and controlling the mobile device to move out the pixel to be detected when the pixel to be detected is detected to be unqualified. Through the scheme disclosed by the invention, the voltage value, the current value and the light intensity value of the pixel to be detected are detected at the same time, and the pixel to be detected which is judged to be unqualified is automatically moved out, so that the detection efficiency of the pixel detection system is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pixel detection system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of another pixel detection system provided in the embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of another pixel detection system provided in the embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of another pixel detection system provided in the embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another pixel detection system provided in the embodiment of the present disclosure;
fig. 6 is a schematic flowchart of a method for using a pixel detection system according to an embodiment of the present disclosure.
Summary of reference numerals:
a pixel detection system 100;
a frame 110;
a jig 120;
a lighting device 130, a first motor 131, a probe 132, a lighting plate 133, a third cylinder 134;
a take-up pan 140;
a light intensity detecting device 150, a light shielding cover 151, a light intensity sensor 152;
the device comprises a moving device 160, a support frame 161, a conveyor belt 162, a second motor 163, a first air cylinder 164, a clamping jaw 165, a portal frame 166, a guide rail 167 and a second air cylinder 168.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, 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 may be practiced without these specific details.
Referring to fig. 1, a schematic structural diagram of a pixel detection system according to an embodiment of the present disclosure is provided. As shown in fig. 1, the pixel detection system 100 mainly includes:
a frame 110;
the jig 120, the jig 120 is disposed on the frame 110, and the jig 120 is used for accommodating pixels to be detected;
the lighting device 130 is arranged below the jig 120, the lighting device 130 comprises a lighting plate 133, and the lighting plate 133 is electrically connected with the pixel to be detected;
an electrical parameter detection device (not shown in the figure), electrically connected to the lighting board 133, including a voltage transmitter and a current transmitter, wherein the voltage transmitter is configured to detect a voltage value of the lighted pixel to be detected, and the current transmitter is configured to detect a current value of the lighted pixel to be detected;
the light intensity detection device 150 is arranged above the jig 120, the light intensity detection device 150 comprises a light intensity sensor 152, and the light intensity sensor 152 is used for detecting the light intensity value of the lighted pixel to be detected;
a moving device 160, wherein the moving device 160 is movably arranged on the frame 110;
and a control device (not shown in the figure), electrically connected to the data output ends of the electrical parameter detection device and the light intensity detection device 150, and electrically connected to the control end of the moving device 160, wherein the control device is configured 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 out the pixel to be detected when the detection result is unqualified.
Considering that in the manufacturing process of an LED pixel, because of the problem of the process flow, the problem of an unqualified product inevitably occurs, it is necessary to detect the current parameter, the voltage parameter and the light intensity of the manufactured LED pixel, and sort the qualified product and the unqualified product.
During specific assembly, the jig 120 is arranged on the frame 110, the moving device 160 is movably arranged on the frame 110, the lighting device 130 is arranged below the jig 120, the light intensity detection device 150 is arranged above the jig 120, the lighting plate 133 of the lighting device 130 is electrically connected with the pixel to be detected, then the electrical parameter detection device is connected with the lighting plate 133, and the data output ends of the electrical parameter device and the light intensity detection device 150 are electrically connected with the control device.
When the device is used, the moving device 160 moves the jig 120 containing the pixel to be detected to the rack 110, then the moving device 160 drives the light intensity detection device 150 to move towards the jig 120, so that the light intensity detection device 150 covers the pixel to be detected, the lighting device 130 moves horizontally towards the preset position where the jig 120 is located, so that the lighting plate 133 of the lighting device 130 is electrically connected with 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.
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 with the control device, the voltage transmitter and the current transmitter detect the voltage value and the current value of the pixel to be detected, 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 according to the output data of the electrical parameter detection device and the light intensity detection device 150, the moving device 160 is controlled to move out the pixel to be detected when the detection result is unqualified, and the moved out pixel to be detected can be subjected to waste recovery.
In the embodiment of the disclosure, after the pixel to be detected is lighted by the lighting device, the electrical parameter detection device starts to detect the current parameter and the voltage parameter of the pixel to be detected, the light intensity detection device also detects the light intensity of the pixel to be detected at the same time, the detected current parameter, voltage parameter and light intensity data are transmitted to the control device, the control device determines whether the real-time collected value is qualified, the value determines that the product is qualified in the upper and lower intervals set by the program, the value determines that the product is unqualified outside the upper and lower intervals set by the program, and the control device determines that the unqualified pixel to be detected is moved out by the mobile device according to the comprehensive determination result, so that the automation during pixel detection is realized, and the detection efficiency and the detection precision are improved.
On the basis of the above embodiment, as shown in fig. 2, the lighting device 130 further includes a first motor 131 and a probe 132;
the probe 132 is disposed on the lighting plate 133, the first motor 131 is connected to the lighting plate 133, and the first motor 131 drives the lighting plate 133 to horizontally move to a preset position corresponding to the fixture 120, so that the lighting plate 133 is electrically connected to the pixel to be detected through the probe 132.
When the pixel detection device is used, the lighting plate 133 may be provided with a plurality of probes 132, the first motor 131 is connected to the lighting plate 133, and when the first motor 131 works, the lighting plate 133 is driven to horizontally move to a preset position corresponding to the jig 120, so that the heads of every two probes 132 are electrically connected to one pixel to be detected and light the pixel to be detected. The tail of the probe 132 is connected with the electrical parameter detection device, so that a voltage transmitter of the electrical parameter detection device detects a voltage value of the lighted pixel to be detected, and a current transmitter of the electrical parameter detection device detects a current value of the lighted pixel to be detected, meanwhile, the lighting device 130 can be further provided with a module, an insulating plate, a fixing plate, a cylinder connecting plate, a linkage plate, a lighting plate mounting seat and other components among the probes 132, so as to ensure that short circuit, poor contact or mistaken contact can not occur during power-on, and a left cylinder and a right cylinder can be further provided, the cylinders are connected with the probes 132, the probes 132 can comprise a left probe and a right probe which are started, the left cylinder drives the left probe to move rightwards, the right cylinder drives the right probe to move leftwards, so that the head of one left probe and the head of one right probe cooperate to clamp a pin at the bottom of the pixel to be detected, so that the lighting plate 133 is electrically connected to the bottom of the pixel to be detected.
On the basis of the above embodiment, as shown in fig. 3, the moving device 160 includes a supporting frame 161, a conveyor belt 162, a second motor 163, two first air cylinders 164 and a magnet (not shown in the figure);
the support frame 161 is fixed on the frame 110, the second motor 163 is disposed at one end of the support frame 161, the two first cylinders 164 are disposed on the outer side surface 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.
During assembly, the support frame 161 is fixed on the frame 110, the second motor 163 is disposed at one end of the support frame 161, the two first cylinders 164 are disposed on the outer side surface of the support frame 161, and the magnet and the jig 120 are located at the same horizontal position.
In specific implementation, considering that the jig 120 is manually replaced or fixed during detection in production, the labor cost is increased, and the detection efficiency is reduced, the conveyor belt 162 can be driven by the second motor 163 to drive the jig 120 to horizontally move 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, so that the position of the jig 120 is fixed. Of course, also can choose for use devices such as arm to fix tool 120, simultaneously, mobile device 160 can also be provided with prevents jumping baffle, conveyer belt backup pad, conveyer belt fixed pin, controls and supports parts such as section bar, universal driving shaft proximity switch sensor, proximity switch mount pad, magnet mount pad, block cylinder and position sensor to the cooperation removes or is fixed tool 120, position sensor tool 120 removes when predetermineeing the position, the magnet cooperation first cylinder 164 is fixed tool 120 can prevent to remove simultaneously tool 120's in-process appears tool 120 landing or removes unstable phenomenon.
On the basis of the above embodiment, as shown in fig. 4, the light intensity detecting device 150 further includes a plurality of light shielding covers 151;
the light shielding cover 151 covers the pixels to be detected;
the outer surface of the light shielding cover 151 is connected with the moving device 160, and the light intensity sensor 152 is disposed on the inner surface of the light shielding cover 151.
Optionally, 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 that of the pixel to be detected.
When the device is used, considering that an external light source influences a detection result when the pixel to be detected is subjected to light intensity detection, a plurality of light shielding covers 151 can be arranged, the light shielding covers 151 cover the pixel to be detected, the light intensity sensor 152 is arranged on the inner surface of the light shielding covers 151, external interference factors can be reduced during detection, meanwhile, the light shielding covers 151 are of cylindrical structures with openings at the bottoms, and the diameter of the light shielding covers 151 is larger than that of the pixel to be detected. Of course, the light shielding cover 151 with different specifications can be selected according to different shapes and sizes of the pixels to be detected. The outer surface of the light shielding cover 151 is connected with the moving device 160, so that the moving device 160 can move the light shielding cover 151 to different positions corresponding to the pixels to be detected.
On the basis of the above embodiment, as shown in fig. 5, the moving device 160 further includes a clamping jaw 165, a gantry 166 and a guide rail 167;
one end of the clamping jaw 165 is connected with the portal frame 166 through a connecting piece, the other end of the clamping jaw 165 is connected with the light shielding cover 151, the guide rail 167 is fixed on the rack 110, and the portal frame 166 slides along the guide rail 167.
Further, the jig 120 is provided with placing holes arranged in an array, and the pixels to be detected are placed in the placing holes;
the moving device 160 moves the light intensity detecting device 150 to the to-be-detected pixel of the placement hole.
Further, a material receiving tray 140 is arranged at the side position of the supporting frame 161;
the clamping jaws 165 drive the light shielding cover 151 to move to the position above the material receiving tray 140.
In the specific implementation, 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 clamping jaw 165 is connected with the outer surface of the light shielding cover 151, the other end of the clamping jaw 165 is connected with the portal frame 166, the portal frame 166 slides along the guide rail 167 to drive the clamping jaw 165 to move to the position above the placing hole of the jig 120, and the number and size of the placing holes formed in the jig 120 can be changed according to the detection amount and the specification of the pixel to be detected. Meanwhile, the material receiving tray 140 is arranged at the side position of the supporting frame 161, when the control device determines that the pixel to be detected is unqualified, the clamping jaws 165 clamp the pixel to be detected to move to the position above the material receiving tray 140, and the clamping jaws 165 are loosened, so that the pixel to be detected falls into the material receiving tray 140. Of course, mobile device 160 can also be provided with parts such as silica gel claw, clamping jaw mounting panel, position-sensitive piece, guide rail pillar installation foot, guide rail pillar, guide rail mounting panel, portal frame connecting plate, clamping jaw subassembly guide rail, portal frame module connecting plate, module mounting panel, module pillar installation foot and connecting piece fixing base, makes clamping jaw 165 drives light shield 151 activity covers remain stable when waiting to detect the pixel, and, makes clamping jaw 165 can not damage when the centre gripping action light shield 151 or wait to detect the pixel.
In addition to the above embodiments, the moving device 160 further includes a second cylinder 168, and the lighting device 130 further includes a third cylinder 134;
the second cylinder 168 is arranged at the top of the clamping jaw 165, and the connecting piece is movably arranged in the second cylinder 168 to drive the clamping jaw 165 to clamp the light shielding cover 151 to movably cover the pixel to be detected, so that the light intensity sensor 152 in the light shielding cover 151 acquires a light intensity value corresponding to the pixel to be detected; and the number of the first and second groups,
the third cylinder 134 is connected to the bottom of the lighting plate 133, and the third cylinder 134 drives the lighting plate 133 to approach or separate from the pixel to be detected.
When the lighting device is used, the second air cylinder 168 drives the clamping jaw 165 to move towards the pixel to be detected, so that the light shielding cover 151 connected with the clamping jaw 165 covers the pixel to be detected, and meanwhile, the third air cylinder 134 drives the lighting plate 133 to move towards the pixel to be detected, so that the lighting plate 133 is electrically connected with the pixel to be detected and lights the pixel to be detected. After the detection is completed, the second cylinder 168 drives the clamping jaw 165 to be away from the pixel to be detected, and the third cylinder 134 drives the lighting plate 133 to be away from the pixel to be detected.
Above-mentioned pixel detecting system of this disclosed embodiment is applicable to automatic assembly line work, can with the tool is along with push mechanism discrepancy equipment, can carry out current parameter, voltage parameter and luminous intensity detection simultaneously to the LED pixel again to can will judge unqualified wait to detect the pixel by the clamping jaw is automatic sorts out, and seamless butt joint between two processes around accomplishing, detects current parameter, voltage parameter detection, lights luminous intensity detection, four kinds of function unifications of automatic sorting by controlling means, reaches intelligent automatic degree, and work efficiency is far more artifical simultaneously, and cost reduction, and because of need not artifical the participation, reduces the error that artificial factor caused, improves product quality's stability.
As shown in fig. 6, an embodiment of the present disclosure further provides a method for using a pixel detection system, where the method includes:
providing a pixel detection system and a plurality of pixels to be detected, wherein the pixel detection system comprises a rack, a jig, a lighting device, an electrical parameter detection device, a light intensity detection device, a moving device and a control device;
s101, controlling the moving device to move the jig containing the pixels to be detected to a preset detection area;
when the tool detection device is specifically implemented, the second motor is controlled to drive the conveyor belt to drive the tool to move to the preset detection area.
S102, controlling the lighting device to light the pixel to be detected at the preset position;
in a specific implementation, the probe is controlled to connect and energize the pins of the pixels to be detected at the preset position, and the pixels to be detected are lighted, for example, when the placing holes of the jig are 5 rows and 5 columns, a control program a may be set in the control device, where the control program a has a value N, a logic N ═ N +1(N is a value before the command is executed), an initial value of N is 1, and when the value N is 5, the command is executed again, and N automatically returns to the initial value 1. The value N entering the loop control program a for the first time is an initial value 1, so that the loop program for the first time outputs a motion coordinate X1 value of the clamping jaw, and outputs a motion coordinate y1 value of the lighting plate (output coordinate rule: when the value of the control program a is N (N is less than or equal to 5), the coordinate code of the clamping jaw is X, the coordinate code of the lighting plate is y, the initial displacement coordinate of the clamping jaw is X0, the initial displacement coordinate of the lighting plate is y0. when the value N of the control program a is 1, the displacement coordinate of the clamping jaw is X1, the displacement coordinate of the lighting plate is y1. when the value N of the control program a is 2, the displacement coordinate of the clamping jaw is X2, the displacement coordinate of the lighting plate is y2. when the value N of the control program a is 3, the displacement coordinate of the clamping jaw is X3, and the displacement coordinate of the lighting plate is y3. when the value N of the control program a is 4, the displacement coordinate of the clamping jaw is x4, and the displacement coordinate of the lighting plate is y 4. When the value N of the control program a is 5, the displacement coordinate of the clamping jaw is x5, and the lighting plate displacement coordinate is y 5. The control device may edit coordinates x1, x2, x3, x4, x5, y1, y2, y3, y4, y 5. ). And the clamping jaw and the lighting plate are displaced to corresponding positions according to the coordinates output by the control program A, the probe arranged on the lighting plate is electrically connected with the pin corresponding to the bottom of the pixel to be detected and electrified, and after the program is circulated for 5 times, the detection of the pixel to be detected on the jig is completed.
For example, according to the coordinate displacement output by the control program a, the mechanical action before detection is completed: and after the control program outputs the coordinates, the control device controls the clamping jaw of the moving device and the first motor of the lighting device to start to work simultaneously according to the coordinate position. The clamping jaw is controlled by the control device to accurately shift to a coordinate x1 numerical value, so that the clamping jaw is accurately shifted to a position right above the pixel to be detected in the first row of the jig, the clamping jaw stops working, the second cylinder is started to descend the clamping jaw until the light shielding cover movably covers the pixel to be detected, and meanwhile, a first sensor in the second cylinder transmits a cylinder descending completion signal. The first motor is controlled by the control device to be accurately shifted to a coordinate y1 numerical value, the lighting plate is enabled to be shifted to a position right below a pixel to be detected on the jig, the third cylinder is started, the lighting plate is close to the pixel to be detected, the probe is clamped into four pins at the bottom of the pixel to be detected, meanwhile, a first sensor in the third cylinder transmits a cylinder jacking completion signal, then, the solenoid valve is started to control the cylinder to drive the cylinder connecting plate, the linkage plate, the fixed plate and the insulating plate to move, the probe is enabled to be abutted against the four pins at the bottom of the pixel to be detected, the sensor on the cylinder transmits the signal, the lighting plate is electrified, and the pixel to be detected is lightened.
S103, controlling the electrical parameter detection device to acquire a current numerical value and a voltage numerical value corresponding to each pixel to be detected, and controlling the light intensity detection device to acquire a light intensity numerical value corresponding to each pixel to be detected;
for example, the probe moves to a first row according to the program output coordinate, the probe lights five pixels to be detected in the first row, meanwhile, the electrical parameter detection device electrically connected with the lighting plate starts 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, the current transmitter of the electrical parameter detection device detects the current value of the pixels to be detected, the clamping jaw moves to the first row according to the program output coordinate simultaneously, the light shielding cover is driven to movably cover the pixels to be detected in the first row, and the light intensity sensor in the light shielding cover starts to detect the light intensity value of the pixels to be detected.
S104, judging whether the current value is in a preset current value range or not, judging whether the voltage value is in a preset voltage value range or not, and judging whether the light intensity value is in a preset light intensity value range or not;
in 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, the light intensity sensor is controlled to detect the light intensity value of the pixel to be detected, and then 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 voltage transmitter and the current transmitter can communicate with the control device through a Modbus communication expansion module after isolating and converting information, and after the light intensity sensor selects a GY-49 light intensity sensor module (a core chip is a MAX44009 sensor), and after the LED pixel is lightened, the GY-49 light intensity sensor module detects the light intensity of the LED chip on the pixel to be detected, converts the light intensity into a digital signal to communicate with the single chip microcomputer, and communicates with the control device through the Modbus communication expansion module after a single chip microcomputer processes a communication, and determining whether the current value and the voltage value are in a preset current value and voltage value range and whether the light intensity value is in a preset light intensity range by the control device, thereby determining the next operation flow.
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, executing step S105, and determining that the pixel to be detected is 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, step S106 is executed to determine that the pixel to be detected is unqualified, and the mobile device moves out the pixel to be detected.
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, the pixel to be detected is determined to be qualified, if one of the current value, the voltage value, or the light intensity value is not within the preset range, the pixel to be detected is determined to be unqualified, and the clamping jaw can be controlled to clamp the pixel to be detected out of the receiving tray.
On the basis of the above embodiment, the step of controlling the electrical parameter detection device to acquire the current value and the voltage value corresponding to each pixel to be detected and controlling the light intensity detection device to acquire the light intensity value corresponding to each pixel to be detected in step S103 includes:
controlling a voltage transmitter of the electrical parameter device to acquire a voltage value corresponding to the pixel to be detected through a lighting plate electrically connected with the pixel to be detected; and the number of the first and second electrodes,
controlling a current transmitter of the electrical parameter device to acquire a current numerical value corresponding to the pixel to be detected through a lighting plate electrically connected with the pixel to be detected; and the number of the first and second electrodes,
and controlling the moving device to move the light intensity detection device to the position of the pixel to be detected and movably cover the pixel to be detected, wherein a light intensity sensor of the light intensity detection device acquires a light intensity numerical value corresponding to the pixel to be detected.
In specific implementation, the lighting board may be provided with a plurality of movable left probes and a plurality of movable right probes, a head of one of the left probes and a head of one of the right probes cooperate to clamp a pin at the bottom of the pixel to be detected, a tail of the left probe and a tail of the right probe are electrically connected to the electrical parameter device, when the lighting device lights the pixel to be detected, the electrical parameter device collects a voltage value and a current value corresponding to the pixel to be detected through the left probe and the right probe, and the light intensity detection device may be provided with a light-shielding cover, so as to reduce interference of external illumination influence on a detection result when performing light intensity detection, the light-shielding cover is connected to the moving device, the light intensity sensor is disposed in the light-shielding cover, and controls the moving device to drive the light-shielding cover to movably cover the pixel to be detected, and the light intensity sensor acquires a light intensity numerical value corresponding to the pixel to be detected. The detected voltage value, current value and light intensity value can be transmitted to the control device in real time to carry out subsequent judgment operation, and of course, the detected voltage value, current value and light intensity value can also be transmitted in real time and stored in a preset storage space so as to facilitate subsequent data analysis.
In summary, the pixel detection system according to the embodiment of the present disclosure, by setting the rack, the jig, the lighting device, the electrical parameter detection device, the light intensity detection device, the moving device and the control device, it is achieved that the current voltage information and the light intensity information of the pixel are detected simultaneously, whether the pixel is qualified or not is comprehensively judged, and the unqualified pixel is automatically picked out, so that the detection efficiency of the pixel detection system is improved.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims (11)

1. A pixel detection system, comprising:
a frame;
the jig is arranged on the rack and used for containing the pixels to be detected;
the lighting device is arranged below the jig and comprises a lighting plate, and the lighting plate is electrically connected with the pixels to be detected;
the electrical parameter detection device is electrically connected with the lighting plate and comprises a voltage transmitter and a current transmitter, the voltage transmitter is used for detecting the voltage value of the lighted pixel to be detected, and the current transmitter is used for detecting the current value of the lighted pixel to be detected;
the light intensity detection device is arranged above the jig and comprises a light intensity sensor, and the light intensity sensor is used for detecting the light intensity numerical value of the lightened pixel to be detected;
the mobile device is movably arranged on the rack;
the control device is electrically connected with the data output ends of the electrical parameter detection device and the light intensity detection device, the control device is electrically connected with the control end of the mobile device, and the control device is used for judging whether the pixel to be detected is qualified or not according to the output data of the electrical parameter detection device and the light intensity detection device, and controlling the mobile device to move out the pixel to be detected when the pixel to be detected is detected to be unqualified.
2. The system of claim 1, wherein the illumination device further comprises a first motor and a probe;
the probe is arranged on the lighting plate, the first motor is connected with the lighting plate, and the first motor drives the lighting plate to horizontally move to the preset position corresponding to the jig, so that the lighting plate is electrically connected with the pixels to be detected through the probe.
3. The system of claim 1, wherein the moving means comprises a support frame, a conveyor belt, a second motor, two first cylinders, and a magnet;
the support frame is fixed in the frame, the second motor set up in support frame one end, two first cylinders set up in the support frame lateral surface, magnet with the tool is located same horizontal position, magnet and two first cylinder cooperation centre gripping the tool, the second motor drive the conveyer belt drives the tool is followed support frame horizontal migration.
4. The system of claim 3, wherein the light intensity detection device further comprises a plurality of light barriers;
the light shielding cover covers the pixels to be detected;
the outer surface of the light shield is connected with the moving device, and the light intensity sensor is arranged on the inner surface of the light shield.
5. The system of claim 4, wherein the light shielding cover is a cylindrical structure with an open bottom, and the diameter of the light shielding cover is larger than that of the pixel to be detected.
6. The system of claim 5, wherein the moving means further comprises a gripper, a gantry, and a guide;
clamping jaw one end pass through the connecting piece with the portal frame is connected, the clamping jaw other end with the light shield is connected, the guide rail is fixed in the frame, the portal frame is followed the guide rail slides.
7. The system of claim 6, wherein a receiving tray is arranged at a side position of the supporting frame;
the clamping jaw drives the light shielding cover to move to the position above the material receiving disc.
8. The system of claim 7, wherein the moving means further comprises a second cylinder, and the illuminating means further comprises a third cylinder;
the second cylinder is arranged at the top of the clamping jaw, and the connecting piece is movably arranged in the second cylinder to drive the clamping jaw to clamp the light shielding cover to movably cover the pixel to be detected, so that the light intensity sensor in the light shielding cover acquires a light intensity numerical value corresponding to the pixel to be detected; and the number of the first and second groups,
and the third cylinder is connected with the bottom of the lighting plate and drives the lighting plate to be close to or far away from the pixels to be detected.
9. The system according to claim 1, wherein the jig is provided with placing holes arranged in an array, and the pixels to be detected are placed in the placing holes;
and the moving device moves the light intensity detection device to the position of the pixel to be detected of the placing hole.
10. A method for using a pixel detection system, applied to the pixel detection system of any one of claims 1 to 9, the method comprising:
providing a pixel detection system and a plurality of pixels to be detected, wherein the pixel detection system comprises a rack, a jig, 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 detected to a preset detection area;
controlling the lighting device to light the pixel to be detected at the preset position;
controlling the electrical parameter detection device to acquire a current numerical value and a voltage numerical value corresponding to each pixel to be detected, and controlling the light intensity detection device to acquire a light intensity numerical value corresponding to each pixel to be detected;
judging whether the current value is within a preset current value range and the voltage value is within a preset voltage value range, and judging 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, determining that the pixel to be detected is qualified;
and if the current value is not in a preset current value range or the voltage value is not in a preset voltage value range, or the light intensity value is not in a preset light intensity range, determining that the pixel to be detected is unqualified, and moving the pixel to be detected out by the mobile device.
11. The method according to claim 10, wherein the step of controlling the electrical parameter detection device to collect a current value and a voltage value corresponding to each pixel to be detected, and controlling the light intensity detection device to collect a light intensity value corresponding to each pixel to be detected comprises:
controlling a voltage transmitter of the electrical parameter device to acquire a voltage value corresponding to the pixel to be detected through a lighting plate electrically connected with the pixel to be detected; and the number of the first and second electrodes,
controlling a current transmitter of the electrical parameter device to acquire a current numerical value corresponding to the pixel to be detected through a lighting plate electrically connected with the pixel to be detected; and the number of the first and second electrodes,
and controlling the moving device to move the light intensity detection device to the position of the pixel to be detected and movably cover the pixel to be detected, wherein a light intensity sensor of the light intensity detection device acquires a light intensity numerical value corresponding to the pixel to be detected.
CN202010139149.3A 2020-03-03 2020-03-03 Pixel detection system and method of use thereof Pending CN111175030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010139149.3A CN111175030A (en) 2020-03-03 2020-03-03 Pixel detection system and method of use thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010139149.3A CN111175030A (en) 2020-03-03 2020-03-03 Pixel detection system and method of use thereof

Publications (1)

Publication Number Publication Date
CN111175030A true CN111175030A (en) 2020-05-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010139149.3A Pending CN111175030A (en) 2020-03-03 2020-03-03 Pixel detection system and method of use thereof

Country Status (1)

Country Link
CN (1) CN111175030A (en)

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