CN107271447A - A kind of PLC outward appearances and LED status detection means based on machine vision - Google Patents
A kind of PLC outward appearances and LED status detection means based on machine vision Download PDFInfo
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- CN107271447A CN107271447A CN201710624201.2A CN201710624201A CN107271447A CN 107271447 A CN107271447 A CN 107271447A CN 201710624201 A CN201710624201 A CN 201710624201A CN 107271447 A CN107271447 A CN 107271447A
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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
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- 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
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
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Abstract
The invention belongs to product detection device, and in particular to a kind of PLC outward appearances and LED status detection means based on machine vision.Detection means includes image acquisition units, motion control unit and real-time monitoring unit.Image acquisition units are made up of industrial camera, industrial lens, strip source group and image pick-up card, collection and transmission for image.Motion control unit is made up of mechanical arm, mechanical arm switch board, conveyer belt, IO cards, proximity transducer and probe, feeding and detection for product.Real-time monitoring unit is made up of industrial computer and display, industrial computer is connected by EPA line with the industrial camera in image acquisition units, the mechanical arm switch board in motion control unit, is connected by IO cards with the probe in motion control unit, proximity transducer.The present invention can help the automatic detection for realizing vision guide robot automatic charging and PLC outward appearances and LED status.
Description
Technical field
Patent of the present invention belongs to Product checking field, and in particular to a kind of PLC outward appearances and LED status detection means.
Background technology
Programmable logic controller (PLC) (PLC) plays very heavy in the production, processing and manufacturing process of modern industrial enterprises
The effect wanted, is widely used in automation application field.And in PLC production processes, easily occur outward appearance defective
Or rosin joint, the caused instruction abnormal problem of lamp on/off of solder skip of internal circuit, done over again if can not detect in time, after giving
Continuous use leaves hidden danger.Traditional detection method relies primarily on manually feeding and naked eyes are detected, inefficiency and objectivity
Not strong, automaticity and reliability be not high.
The self-dependent eyes of the mankind obtain external environmental information, and then make various judgements and action.Machine vision
Technology is then that the visual performance of human eye is simulated using industrial camera, and information is extracted from the image of objective things, is handled
And understood, eventually for actual detection, measurement and control.The characteristics of NI Vision Builder for Automated Inspection be improve production flexibility and
Automaticity.It is not suitable at some in the hazardous environment of manual work or high-volume industrial processes, machine in normal service is regarded
Feel to substitute artificial vision.
Patent of the present invention is machine vision technique to be applied in the detection process of PLC outward appearances and LED status, profit
Realize that robot captures product feeding automatically with vision positioning technology, can greatly liberate manpower, and use vision technique
Parts defect situation and LED status are detected, the automatization level of system can be improved.
The content of the invention
In view of the above-mentioned problems, patent of the present invention provides a kind of PLC outward appearances and LED status inspection based on machine vision
Survey device.
The technical scheme that patent of the present invention is used is：
A kind of PLC outward appearances and LED status detection means, are supervised by image acquisition units, motion control unit and in real time
Control unit composition.
Image acquisition units are by 2 Basler acA2500-14gm black and white industrial cameras, 2 TAMRON-M118FM08 hundred
Ten thousand pixels focus industrial lens, 2 light source groups and image pick-up card composition；Each light source group is by 2 OPT-LI9022 strip lights
Source, 2 OPT-LI23034 strip sources are constituted；Totally two sets of camera, camera lens and light source, the black and white industrial camera (2) in B areas, industry
The feeding overlying regions that camera lens (4), light source group (6) are arranged on transmission end of tape help to constitute mechanical arm hand-eye system, A areas it is black
White industrial camera (1), industrial lens (3), light source group (5), which are arranged in the camera bellows of detection station, to be used for completing the inspection to product
Survey.Industrial lens are arranged on industrial camera, and light source group is arranged on below industrial lens, and in its center line and industrial lens
Heart line is consistent, and the distance between light source group and industrial lens lower surface is maintained in the range of 50 ± 5mm, and industrial lens are to be checked
The product PLC of survey distance is 500mm ± 10mm；Image pick-up card (17) is arranged on the industrial computer (16) of real-time monitoring unit
In PCI slot, image pick-up card is connected with two industrial cameras by gigabit Ethernet line, realizes collection and the biography of image
It is defeated.
Motion control unit is made up of UR mechanical arms (10), mechanical arm switch board (11), teaching machine and conveyer belt (7).UR
Mechanical arm connects mechanical arm switch board by the private cable carried；Teaching machine is controlled by the communication cable and mechanical arm carried
Cabinet is connected；Clamping jaw handgrip is made up of clamping jaw support and clamping jaw, and clamping jaw support is arranged at the ring flange position of mechanical arm tail end, folder
Pawl is fixed on clamping jaw support；Mechanical arm switch board is connected by EPA line with the industrial computer of real-time monitoring system,
Realize mechanical arm and the communication connection of industrial computer and data transfer；Conveyer belt is used to transmit product PLC to be detected.
Real-time monitoring unit is by industrial computer (16), display, IO cards (15), proximity transducer (9) and detection probe (14)
Composition.Industrial computer passes through the machinery in 2 industrial cameras, motion control units in EPA line and image acquisition units
Arm switch board is connected；Industrial computer is connected by IO cards with detection probe, proximity transducer；Industrial computer is communicated by RS485
Cable is connected with the communication port of motion control unit；Display provides man-machine monitoring interface, the robot of display in real time feeding
Situation and Product checking situation, record and preserve detection data and image.
The advantageous effects of patent of the present invention：Apparatus structure is simple, can realize robot capture automatically product feeding and
PLC outward appearances and the quick, accurate of LED status, automatic detection.
Brief description of the drawings
Patent of the present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the hardware connection structure figure of a kind of PLC outward appearances based on machine vision and LED status detection means.
Accompanying drawing 2 is the detection content schematic diagram of a kind of PLC outward appearances based on machine vision and LED status detection means.
Accompanying drawing 3 is the overhaul flow chart of a kind of PLC outward appearances based on machine vision and LED status detection means.
Numbering 1,2 is Basler acA2500-14gm black and white industrial cameras in accompanying drawing 1, and numbering 3,4 is that focal length is 8mm
TAMRON-M118FM08 mega pixels focus industrial lens, and numbering 5,6 is light source group, and numbering 7 is feeding conveyer belt, and numbering 8 is
Product feeding region, numbering 9 is proximity transducer, and numbering 10 is that mechanical arm, numbering 11 are mechanical arm switch boards, and numbering 12 is to carry
Thing platform, numbering 13 is code reader, and numbering 14 is probe, and numbering 15 is IO cards, and numbering 16 is industrial computer, and numbering 17 is IMAQ
Card, numbering 18,19 is product PLC to be detected.
Numbering 1~6 is six terminal blocks to be detected in accompanying drawing 2, and numbering 7~9 is three kinds of cover plates to be detected, numbering 10
It is input indicator, numbering 11 is system indicator, and numbering 12 is status indicator lamp, and numbering 13 is side label, and numbering 14 is
Quick Response Code, numbering 15 is 45 ° of minute surfaces tiltedly put.
Embodiment
The embodiment to patent of the present invention is described further below in conjunction with the accompanying drawings.
PLC outward appearances and LED status detect it is last one of quality testing process, substandard product in PLC production processes
It should be detected in time and modification of doing over again.
After system electrification starts, the product PLC to be detected in accompanying drawing 1 on conveyer belt reaches product feeding region (8), touches
Proximity transducer (9) is sent out, signal sends industrial computer (16), industrial computer (16) control camera to product by IO cards (15) in place
(2) image is gathered, and industrial computer (16) to is sent picture by image pick-up card (17) and carries out framing processing, production is extracted
Product PLC (18) positional information, mechanical arm switch board (11), machine are fed back to if positional information is extracted successfully by position data
Tool arm switch board (11) accurately captures product PLC to be detected after the pose of mechanical arm (10) is adjusted according to the positional information of acquisition
(18) fixed position into A areas above objective table (12), and by product PLC (18) to be detected is captured, by code reader (13)
Reading code is carried out to the label of product PLC left surfaces, product type and numbering is obtained, reading is finished, completes a production to be detected
Product PLC feeding task, otherwise positioning failure, by manually adjusting product space.
After the completion of feeding, mechanical arm switch board (11) sends feeding completion signal and gives industrial computer (16), industrial computer (16) control
Camera (1) processed gathers image, and sends picture in industrial computer (16) detection accompanying drawing 2 six ends by image pick-up card (17)
Whether son row, three cover plates, left surface label and Quick Response Code lack；To ensure that each part feature focuses on an image upper body
Existing, product PLC (19) to be detected sets up the minute surface (15) tiltedly put such as one 45 ° in accompanying drawing 2 on objective table (12).Open
Light source group (5), industrial computer (16) control probe (14) action, is connected to the input of product PLC (19) on objective table (12)
Point, power supply signal point and RS485 communication terminals；Pass through RS485 communication electricity to electricity on product PLC (19), then by industrial computer (16)
Cable sends signal to product PLC (19) step by step, input indicator (10) in accompanying drawing 2 is lighted successively, system indicator (11), defeated
Go out indicator lamp (12), industrial computer (16) coordinates every time collection image to carry out visual processes and detection, produced by industrial computer (16)
The whether qualified signal of product, detection is captured product PLC (19) blanking to be detected by mechanical arm (10) after finishing, and is waited next
The detection of product, it is ensured that the uninterrupted operation of whole system and whole production line.Whole feeding information and vision-based detection fructufy
When be shown in the man-machine interface of industrial computer (16), while will detection data and image preserved, traced to the source to carry out data.
Above is presently preferred embodiments of the present invention, not makees any formal limitation, every foundation to the present invention
The technical spirit of the present invention belongs to invention skill to any simple modification, equivalent variations and modification made for any of the above embodiments
In the range of art scheme.
Claims (1)
1. a kind of PLC outward appearances and LED status detection means based on machine vision, it is characterised in that the device is adopted by image
Collect unit, motion control unit and real-time monitoring unit composition；
Image acquisition units are by 2 Basler acA2500-14gm black and white industrial cameras, 2 pictures of TAMRON-M118FM08 million
Element focuses industrial lens, 2 light source groups and image pick-up card composition；Each light source group is by 2 OPT-LI9022 strip sources, 2
Individual OPT-LI23034 strip sources are constituted；Totally two sets of camera, camera lens and light source, the black and white industrial camera (2) in B areas, industrial lens
(4), light source group (6) helps to constitute mechanical arm hand-eye system, the black and white work in A areas installed in the feeding overlying regions of transmission end of tape
Industry camera (1), industrial lens (3), light source group (5), which are arranged in the camera bellows of detection station, to be used for completing the detection to product；Work
Industry camera lens is arranged on industrial camera, and light source group is arranged on below industrial lens, and its center line and the center line of industrial lens
It is consistent, the distance between light source group and industrial lens lower surface is maintained in the range of 50 ± 5mm, industrial lens are to be detected
Product PLC distance is 500mm ± 10mm；Image pick-up card (17) is arranged on the PCI of the industrial computer (16) of real-time monitoring unit
In slot, image pick-up card is connected with two industrial cameras by gigabit Ethernet line；
Motion control unit is made up of UR mechanical arms (10), mechanical arm switch board (11), teaching machine and conveyer belt (7)；UR machineries
Arm connects mechanical arm switch board by the private cable carried；Teaching machine passes through the communication cable and mechanical arm switch board phase that carry
Even；Clamping jaw handgrip is made up of clamping jaw support and clamping jaw, and clamping jaw support is arranged at the ring flange position of mechanical arm tail end, and clamping jaw is solid
It is scheduled on clamping jaw support；Mechanical arm switch board is connected by EPA line with the industrial computer of real-time monitoring system, is realized
Mechanical arm and the communication connection of industrial computer and data transfer；Conveyer belt is used to transmit product PLC to be detected；
Real-time monitoring unit is made up of industrial computer (16), display, IO cards (15), proximity transducer (9) and detection probe (14)；
Industrial computer passes through the mechanical arm control in 2 industrial cameras, motion control units in EPA line and image acquisition units
Cabinet processed is connected；Industrial computer is connected by IO cards with detection probe, proximity transducer；Industrial computer passes through RS485 communication cables
It is connected with the communication port of motion control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624201.2A CN107271447A (en) | 2017-07-27 | 2017-07-27 | A kind of PLC outward appearances and LED status detection means based on machine vision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624201.2A CN107271447A (en) | 2017-07-27 | 2017-07-27 | A kind of PLC outward appearances and LED status detection means based on machine vision |
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| Publication Number | Publication Date |
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| CN107271447A true CN107271447A (en) | 2017-10-20 |
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| CN201710624201.2A Withdrawn CN107271447A (en) | 2017-07-27 | 2017-07-27 | A kind of PLC outward appearances and LED status detection means based on machine vision |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966836A (en) * | 2017-11-29 | 2018-04-27 | 南昌工程学院 | TFT-L CD defect optical automatic detection system |
| CN108318806A (en) * | 2018-02-13 | 2018-07-24 | 中山职业技术学院 | A kind of control panel working station indicator detection device |
| CN109060833A (en) * | 2018-08-09 | 2018-12-21 | 世特科汽车工程产品（常州）有限公司 | A kind of full-automatic photographic means for detecting sprocket wheel model and defect |
| CN109406533A (en) * | 2018-10-25 | 2019-03-01 | 北京阿丘机器人科技有限公司 | A kind of detection system and method for surface defects of products |
| CN109894763A (en) * | 2019-01-16 | 2019-06-18 | 武汉纺织大学 | A kind of solar assembly junction box positioning system and its localization method |
| CN110018172A (en) * | 2019-04-25 | 2019-07-16 | 伟创力电子设备(深圳)有限公司 | Products detection system and method |
| CN110102511A (en) * | 2019-05-23 | 2019-08-09 | 北京阿丘机器人科技有限公司 | A kind of vision detection system and method for product appearance |
| CN110376194A (en) * | 2019-07-11 | 2019-10-25 | 中国人民解放军国防科技大学 | Automatic trace explosive detection system |
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| CN101576508A (en) * | 2009-05-27 | 2009-11-11 | 华南理工大学 | Device and method for automatically detecting chip appearance defects |
| CN203235694U (en) * | 2013-04-12 | 2013-10-16 | 湖北工业大学 | High-precision vision measurement system of electronic connector |
| CN204725502U (en) * | 2015-07-01 | 2015-10-28 | 江南大学 | Door of elevator feeding device under a kind of vision guide |
| CN105699387A (en) * | 2016-03-15 | 2016-06-22 | 广州市慧眼电气产品有限公司 | Electronic product appearance defect detection system |
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| CN101576508A (en) * | 2009-05-27 | 2009-11-11 | 华南理工大学 | Device and method for automatically detecting chip appearance defects |
| CN203235694U (en) * | 2013-04-12 | 2013-10-16 | 湖北工业大学 | High-precision vision measurement system of electronic connector |
| CN204725502U (en) * | 2015-07-01 | 2015-10-28 | 江南大学 | Door of elevator feeding device under a kind of vision guide |
| CN105699387A (en) * | 2016-03-15 | 2016-06-22 | 广州市慧眼电气产品有限公司 | Electronic product appearance defect detection system |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966836A (en) * | 2017-11-29 | 2018-04-27 | 南昌工程学院 | TFT-L CD defect optical automatic detection system |
| CN108318806A (en) * | 2018-02-13 | 2018-07-24 | 中山职业技术学院 | A kind of control panel working station indicator detection device |
| CN109060833A (en) * | 2018-08-09 | 2018-12-21 | 世特科汽车工程产品（常州）有限公司 | A kind of full-automatic photographic means for detecting sprocket wheel model and defect |
| CN109406533A (en) * | 2018-10-25 | 2019-03-01 | 北京阿丘机器人科技有限公司 | A kind of detection system and method for surface defects of products |
| CN109894763A (en) * | 2019-01-16 | 2019-06-18 | 武汉纺织大学 | A kind of solar assembly junction box positioning system and its localization method |
| CN110018172A (en) * | 2019-04-25 | 2019-07-16 | 伟创力电子设备(深圳)有限公司 | Products detection system and method |
| CN110018172B (en) * | 2019-04-25 | 2021-12-07 | 伟创力电子设备(深圳)有限公司 | Product detection system and method |
| CN110102511A (en) * | 2019-05-23 | 2019-08-09 | 北京阿丘机器人科技有限公司 | A kind of vision detection system and method for product appearance |
| CN110376194A (en) * | 2019-07-11 | 2019-10-25 | 中国人民解放军国防科技大学 | Automatic trace explosive detection system |
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Application publication date: 20171020 |