CN111880327A - Electrical control system of small liquid crystal panel test platform - Google Patents
Electrical control system of small liquid crystal panel test platform Download PDFInfo
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- CN111880327A CN111880327A CN202010869590.7A CN202010869590A CN111880327A CN 111880327 A CN111880327 A CN 111880327A CN 202010869590 A CN202010869590 A CN 202010869590A CN 111880327 A CN111880327 A CN 111880327A
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 13
- 238000012800 visualization Methods 0.000 claims abstract description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000012552 review Methods 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0428—Safety, monitoring
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9513—Liquid crystal panels
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2612—Data acquisition interface
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Abstract
The invention discloses an electrical control system of a small liquid crystal panel test platform, which comprises: the human-computer operation interface is used for debugging equipment parameters and controlling the operation of the equipment to realize the visualization of the control process; the main control module is used for providing control instructions executable by the system; the motion control module is connected to the main control module, translates the motion control process into pulse signals which can be recognized, and controls the motion of the four axes; the servo driving module is connected with the motion control module, receives the pulse signal and converts the pulse signal into a voltage signal to control a servo motor connected to the servo driving module; and the trigger camera image capturing module is used for photographing and image capturing. The system meets the action requirement of the liquid crystal display panel after cutting, improves the detection efficiency and saves the manpower and financial resources.
Description
Technical Field
The invention relates to the technical field of electrical control, in particular to an electrical control system of a small liquid crystal panel test platform.
Background
The liquid crystal panel AOI equipment has the characteristics of high cost, high difficulty and high environmental requirement, and is obviously impractical to use large-scale liquid crystal panel AOI equipment for detecting defects on a liquid crystal panel through experiments, so that a small-sized liquid crystal panel test platform electrical control system is urgently needed to be designed and developed in order to realize the detection of the liquid crystal panel without high cost.
Disclosure of Invention
The invention aims to provide an electrical control system of a small liquid crystal panel test platform, which meets the action requirement of the liquid crystal panel after cutting, improves the detection efficiency and saves the manpower and financial resources.
In order to achieve the above object, the present invention provides an electrical control system for a small lcd panel testing platform, comprising:
the human-computer operation interface is used for debugging equipment parameters and controlling the operation of the equipment to realize the visualization of the control process;
the main control module is used for providing control instructions executable by the system;
the motion control module is connected to the main control module, translates the motion control process into pulse signals which can be recognized, and controls the motion of the four axes;
the servo driving module is connected with the motion control module, receives the pulse signal and converts the pulse signal into a voltage signal to control a servo motor connected to the servo driving module;
and the trigger camera image capturing module is used for photographing and image capturing.
Preferably, the main control module is Mitsubishi Q06HUDP and has executable control instructions through GX WORKS2 programming download; the trigger camera image capturing module comprises an ohm dragon laser sensor LV-NH37 matched with an amplifier LV-N11N.
Preferably, the human-machine interface comprises a main interface, a JOG interface, a cycle/single-point interface, a multi-point control interface, a matrix interface and an X-axis/Y-axis/X-up/Z-axis parameter interface.
Preferably, the main interface includes a system positioning module state, a light source communication state, a system reset, an axis zeroing, a resetY0, a mode switching, current position information of four axes, and a light source control button;
the JOG interface comprises position information of four axes, JOG speed grade switching, a JOG speed setting window switching button, an axis selection button and JOG forward and backward;
the circulation/single point interface comprises a single point positioning state, a review trigger time setting, a positioning and homing button, the current position of XYZ three axes, a scanning trigger direction setting, circulation related parameter setting and state display and a circulation starting button;
the multi-point control interface comprises two walking modes of pulse step and E step, related state display, parameter setting and feedback information;
the matrix interface comprises state information such as a mode switching button, a preparation state and the like, movement related parameter setting and running information feedback;
the X-axis/Y-axis/X-up/Z-axis parameter interface respectively comprises soft limit, speed parameter, acceleration and deceleration time and position information setting of each axis pair.
Preferably, the manual operation box is connected with the main control module and comprises a mode switching switch, a starting button, an emergency stop button and a system power indicator lamp.
Preferably, the four axes include a Y axis carrying the stage scan, an X axis with the bottom perpendicular to the Y direction, a Z axis with the review camera moving vertically, and an X upper axis located on the upper transfer Z axis.
Preferably, whether the laser sensor is electrified or not is controlled by outputting IO point signals, the laser sensor is electrified in a scanning interval, and when a light beam is shielded, the line scanning camera is triggered to collect images.
According to the technical scheme, as shown in fig. 1, the intelligent robot system comprises a touch screen, a programmable controller, a positioning module, an IO module, a personal service controller, a personal service motor, a laser sensor group, a line scanning camera, an upper computer host and a sub computer. Meanwhile, the system also comprises a human-computer operation interface which is used for debugging equipment parameters and controlling the operation of the equipment so as to realize the visualization of the control process. The main control module, Mitsubishi Q06HUDP, is the core of the control system, and is downloaded through GX WORKS2 programming, so that the system has executable control instructions. And the motion control module is connected to the main control module, translates the motion control process into pulse signals which can be recognized, and controls the motion of the 4 shafts. The servo driving module is connected with the motion control module and receives the pulse signal and then converts the pulse signal into a voltage signal; the trigger camera image capturing module, the ohm dragon laser sensor LV-NH37 and the amplifier LV-N11N are matched, the sensor has the characteristics of small light spot, quick response and high accuracy, the shooting is repeatedly triggered, and the position error of the image starting point is within 5 micrometers. The action requirement of cutting out the liquid crystal display panel detection is satisfied, and the detection software is matched to realize the defect detection in the panel, so that a large amount of manpower and financial resources are not required to be invested, the detection requirement can be satisfied, and the early evaluation and test stage of the panel detection project plays a very key role.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of an electrical control system of a small-sized LCD panel testing platform provided by the present invention;
FIG. 2 is a schematic diagram of a logic structure of an electrical control system of a small-sized LCD panel testing platform provided by the present invention;
FIG. 3 is a schematic diagram of a single scan of an electrical control system of a small LCD panel testing platform according to the present invention;
FIG. 4 is a schematic diagram of the electrical control system of the small LCD panel testing platform according to the present invention;
FIG. 5 is a schematic diagram of the pulse step operation of the electrical control system of the small LCD panel testing platform provided by the present invention;
FIG. 6 is a flow chart of the operation of the electrical control system of the small-sized LCD panel testing platform provided by the present invention.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional terms included in the terms merely represent the directions of the terms in a conventional use state or are colloquially known by those skilled in the art, and should not be construed as limiting the terms.
Referring to fig. 2, the present invention provides an electrical control system for a small lcd panel testing platform, comprising:
the human-computer operation interface is used for debugging equipment parameters and controlling the operation of the equipment to realize the visualization of the control process;
the main control module is used for providing control instructions executable by the system;
the motion control module is connected to the main control module, translates the motion control process into pulse signals which can be recognized, and controls the motion of the four axes;
the servo driving module is connected with the motion control module, receives the pulse signal and converts the pulse signal into a voltage signal to control a servo motor connected to the servo driving module;
and the trigger camera image capturing module is used for photographing and image capturing.
The main control module is Mitsubishi Q06HUDP and downloads the system with executable control instructions through GX WORKS2 programming; the trigger camera image capturing module comprises an ohm dragon laser sensor LV-NH37 matched with an amplifier LV-N11N.
The human-computer operation interface comprises a main interface, a JOG interface, a cycle/single-point interface, a multi-point control interface, a matrix interface and an X-axis/Y-axis/X-up/Z-axis parameter interface.
The main interface comprises a system positioning module state, a light source communication state, a system reset, an axis zero setting, a resetY0, a mode switching, current position information of four axes and a light source control button;
the JOG interface comprises position information of four axes, JOG speed grade switching, a JOG speed setting window switching button, an axis selection button and JOG forward and backward;
the circulation/single point interface comprises a single point positioning state, a review trigger time setting, a positioning and homing button, the current position of XYZ three axes, a scanning trigger direction setting, circulation related parameter setting and state display and a circulation starting button;
the multi-point control interface comprises two walking modes of pulse step (see figure 5) and E step (see figure 4), related state display, parameter setting and feedback information;
the matrix interface comprises state information such as a mode switching button, a preparation state and the like, movement related parameter setting and running information feedback;
the X-axis/Y-axis/X-up/Z-axis parameter interface respectively comprises soft limit, speed parameter, acceleration and deceleration time and position information setting of each axis pair.
Furthermore, the system also comprises a manual operation box connected with the main control module, wherein the manual operation box comprises a mode switching switch, a starting button, an emergency stop button and a system power indicator lamp.
The functions of the buttons are as follows: the mode selector switch is used for switching between a manual mode and an automatic mode; the starting button is used for controlling the program to start execution; the emergency stop button is used for carrying out emergency stop operation on the equipment in case of emergency; the system power indicator lamp is used for indicating whether the power supply of the equipment is normal.
In addition, the peripheral equipment of the system also comprises an origin switch of each shaft, a positive limit switch of each shaft and a negative limit switch of each shaft. The positive and negative limit switches are used for limiting the movement range of each shaft, and the origin switch is used for searching the origin when the origin of each shaft is lost, so that the movement range and the initial position of the equipment are controlled.
The four axes of the platform comprise a Y axis carrying the scanning of the carrier, an X axis with the bottom vertical to the Y direction, a Z axis with the vertical movement of the review camera and an X upper axis positioned on the upper shifting Z axis.
Triggering acquisition logic, controlling whether the laser sensor is electrified or not by outputting IO point signals, electrifying the laser sensor in a scanning interval, and triggering the line scanning camera to acquire images when light beams are shielded.
Through the technical scheme, the intelligent robot system comprises a touch screen, a programmable controller, a positioning module, an IO module, a personal clothing controller, a personal clothing motor, a laser sensor group, a line scanning camera, an upper computer host and a sub computer. Meanwhile, the system also comprises a human-computer operation interface which is used for debugging equipment parameters and controlling the operation of the equipment so as to realize the visualization of the control process. The main control module, Mitsubishi Q06HUDP, is the core of the control system, and is downloaded through GX WORKS2 programming, so that the system has executable control instructions. And the motion control module is connected to the main control module, translates the motion control process into pulse signals which can be recognized, and controls the motion of the 4 shafts. The servo driving module is connected with the motion control module and receives the pulse signal and then converts the pulse signal into a voltage signal; the trigger camera image capturing module, the ohm dragon laser sensor LV-NH37 and the amplifier LV-N11N are matched, the sensor has the characteristics of small light spot, quick response and high accuracy, the shooting is repeatedly triggered, and the position error of the image starting point is within 5 micrometers. The action requirement of cutting out the liquid crystal display panel detection is satisfied, and the detection software is matched to realize the defect detection in the panel, so that a large amount of manpower and financial resources are not required to be invested, the detection requirement can be satisfied, and the early evaluation and test stage of the panel detection project plays a very key role.
As shown in fig. 6, the specific operation flow of the system is as follows:
firstly, the equipment is powered on and is switched into a manual mode, whether the equipment returns to the original point or not is judged, if not, the equipment returns to the original point, and if the equipment returns to the original point, the scanning starting point and end point positions, the triggering direction and the running speed are set; then, switching to an automatic mode and selecting a scanning mode, wherein the selectable modes comprise single-row scanning, E-step scanning and pulse-step scanning; and starting scanning and triggering image taking after waiting for the scanning starting signal, finishing the whole process if the image taking is finished, and returning to the scanning signal for reprocessing if the image taking is not finished.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (7)
1. The utility model provides a small-size liquid crystal display panel test platform electrical control system which characterized in that includes:
the human-computer operation interface is used for debugging equipment parameters and controlling the operation of the equipment to realize the visualization of the control process;
the main control module is used for providing control instructions executable by the system;
the motion control module is connected to the main control module, translates the motion control process into pulse signals which can be recognized, and controls the motion of the four axes;
the servo driving module is connected with the motion control module, receives the pulse signal and converts the pulse signal into a voltage signal to control a servo motor connected to the servo driving module;
and the trigger camera image capturing module is used for photographing and image capturing.
2. The electrical control system of small liquid crystal panel testing platform as claimed in claim 1, wherein the main control module is Mitsubishi Q06HUDP and has executable control instructions through GX WORKS2 programming download; the trigger camera image capturing module comprises an ohm dragon laser sensor LV-NH37 matched with an amplifier LV-N11N.
3. The electrical control system of small lcd panel testing platform of claim 1, wherein the human-machine interface comprises a main interface, a JOG interface, a cycle/single point interface, a multi-point control interface, a matrix interface and an X-axis/Y-axis/X-up/Z-axis parameter interface.
4. The electrical control system for small-sized LCD panel testing platform as claimed in claim 3,
the main interface comprises a system positioning module state, a light source communication state, a system reset, an axis zero setting, a resetY0, a mode switching, current position information of four axes and a light source control button;
the JOG interface comprises position information of four axes, JOG speed grade switching, a JOG speed setting window switching button, an axis selection button and JOG forward and backward;
the circulation/single point interface comprises a single point positioning state, a review trigger time setting, a positioning and homing button, the current position of XYZ three axes, a scanning trigger direction setting, circulation related parameter setting and state display and a circulation starting button;
the multi-point control interface comprises two walking modes of pulse step and E step, related state display, parameter setting and feedback information;
the matrix interface comprises state information such as a mode switching button, a preparation state and the like, movement related parameter setting and running information feedback;
the X-axis/Y-axis/X-up/Z-axis parameter interface respectively comprises soft limit, speed parameter, acceleration and deceleration time and position information setting of each axis pair.
5. The electrical control system of small lcd panel test platform according to claim 1, further comprising a manual operation box connected to the main control module, wherein the manual operation box comprises a mode switch, a start button, an emergency stop button and a system power indicator.
6. The electrical control system for compact LCD panel testing platform of claim 1, wherein the four axes include Y-axis carrying stage scan, X-axis with bottom perpendicular to Y-direction, Z-axis with review camera moving vertically, and X-axis on upper transfer Z-axis.
7. The electrical control system for a small liquid crystal panel testing platform according to claim 1, wherein the laser sensor is controlled to be powered on or not by outputting an IO point signal, the laser sensor is powered on in a scanning zone, and when a light beam is blocked, the line scanning camera is triggered to collect an image.
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Cited By (2)
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CN112748718A (en) * | 2020-12-15 | 2021-05-04 | 北京无线电测量研究所 | Servo control system debugging table and debugging method |
CN113960934A (en) * | 2021-10-29 | 2022-01-21 | 中国工程物理研究院机械制造工艺研究所 | System and method for automatically testing electrical cabinet of control system |
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