CN106468762A - A kind of circuit breaker adjustment screw vision positioning system - Google Patents
A kind of circuit breaker adjustment screw vision positioning system Download PDFInfo
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- CN106468762A CN106468762A CN201510519562.1A CN201510519562A CN106468762A CN 106468762 A CN106468762 A CN 106468762A CN 201510519562 A CN201510519562 A CN 201510519562A CN 106468762 A CN106468762 A CN 106468762A
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Abstract
A kind of present invention circuit breaker adjustment screw vision positioning system, reliable and stable it is achieved that screw quick, be accurately positioned, the chopper long delay testing time is shortened more than 30%.The present invention includes lighting source, image acquisition memory element, human and machine interface unit, PLC control unit and screw adjustment control unit；Image acquisition memory element includes optical lens, CCD camera, image pick-up card, and optical lens are arranged in CCD camera, and the outfan of CCD camera is connected with image pick-up card；Screw adjustment control unit is concentric Shuan Rou axial adjustment mechanism, and human and machine interface unit includes monitoring interface and image processing module, and monitoring interface and image processing module are connected with each other；The outfan of image pick-up card connects the input of image processing module, and the outfan of image processing module connects the input of PLC control unit, and the outfan of PLC control unit connects concentric Shuan Rou axial adjustment mechanism；The light irradiation that lighting source sends, on tripping screw nail, is then received by described optical lens.
Description
Technical field
The invention belongs to the detection technique field of low-voltage circuit breaker, more particularly to a kind of circuit breaker adjustment screw vision positioning system.
Background technology
Low-voltage circuit breaker be for connecting, a kind of switching device of disjunction power circuit load and various short trouble, the core component as low-voltage distribution system is widely used in distribution system.If the performance indications such as its long delay, reliability are below standard, distribution system normal work can be affected, or even the safety of entail dangers to system and power equipment, so long delay detection is the important indicator of circuit breaker, and the quick and precisely positioning to screw is key one step completing long delay detection, the positioning precision of screw plays vital effect to the test of chopper long delay.
Past, chopper screw adjustment link majority adopts manual hand manipulation, have that randomness is big, stability is poor, low production efficiency the problems such as, adopt the laser spots tactical deployment of troops that screw is positioned later, although solving the problems such as randomness is big, stability is poor, still suffer from the drawback that：Due to the rule restriction of laser dot-matrix Scan orientation, laser positioning tracking screw has larger time lag；Because screw sizes are less, bi-metal plate deformed drives screw to tilt, thus affecting laser positioning precision.Traditional screw localization method has been difficult to meet automatic, quick, high-precision testing requirement.
With the development of Computer Applied Technology and CCD imaging technique, obtain increasingly being widely applied based on the vision localization of image procossing.
Content of the invention
The present invention is aiming at the difficult problem during adjustment of chopper long delay, tripping screw nail quickly being positioned automatically, provides a kind of circuit breaker adjustment screw vision positioning system；The present invention reliable and stable it is achieved that, fast and accurately locating and tracking real-time to screw, there is noncontact, flexible, high precision and long-time stable.
For realizing the above-mentioned purpose of the present invention, the present invention adopts the following technical scheme that.
A kind of present invention circuit breaker adjustment screw vision positioning system, adjusts control unit including lighting source, image acquisition memory element, human and machine interface unit, PLC control unit and screw；Its structural feature is：Described image collection memory element includes optical lens, CCD camera, image pick-up card, and described optical lens are arranged in CCD camera, and the outfan of described CCD camera is connected with image pick-up card；Described screw adjustment control unit is concentric Shuan Rou axial adjustment mechanism, and described human and machine interface unit includes monitoring interface and image processing module, and described monitoring interface and image processing module are connected with each other；The outfan of described image capture card connects the input of image processing module, and the outfan of image processing module connects the input of PLC control unit, and the outfan of described PLC control unit connects concentric Shuan Rou axial adjustment mechanism；The light irradiation that described lighting source sends, on tripping screw nail, is then received by described optical lens.
As a preferred embodiment of the present invention, described lighting source adopts the CCS low angle LED ring light of LDR-96LA-1-SW.
As another kind of preferred version of the present invention, described CCD camera adopts the colored CCD industrial digital camera of Daheng's image Mercury series MER-125-30UC model.
As another kind of preferred version of the present invention, described optical lens adopt the mega pixel series of optical camera lens of Computer M1214-MP2 model.
As another kind of preferred version of the present invention, described image capture card is DH-VT140 tetra- tunnel Color Image Acquisition card.
The invention has the beneficial effects as follows.
1st, a kind of circuit breaker adjustment screw vision positioning system that the present invention provides, in testing for traditional chopper long delay, manual unstability to tripping screw nail and the static adjustment of nut, efficiency is low and Adjustment precision is difficult to ensure the problem of card it is proposed that the screw positioning and tracing method of view-based access control model image；The present invention adopts industrial CCD camera Real-time Collection screw picture, complete the locating and tracking to screw center by image processing techniquess, system operation safe and reliable it is achieved that to tripping screw nail quick, be accurately positioned, greatly shorten the chopper testing time it is achieved that chopper test automation.
2nd, the present invention passes through the mega pixel series of optical camera lens of industrial CCD camera and Computer M1214-MP2 model, obtain the image information of tripping screw nail on chopper three-phase bimetal leaf, carry out image procossing using computer vision storehouse (Open CV) software increased income and extract screw center, control concentric Shuan Rou axial adjustment mechanism that screw-nut is completed with long delay adjustment action thus its coordinate position is sent to PLC control unit；The present invention reliable and stable it is achieved that screw quick, be accurately positioned, the chopper long delay testing time is shortened more than 30%；Achieve, fast and accurately locating and tracking real-time to screw, there is noncontact, flexible, high precision and long-time stable.
Brief description
Fig. 1 is a kind of composition frame chart of present invention circuit breaker adjustment screw vision positioning system.
Fig. 2 is a kind of image vision positioning flow figure of present invention circuit breaker adjustment screw vision positioning system.
Specific embodiment
As shown in figure 1, the composition frame chart for a kind of present invention circuit breaker adjustment screw vision positioning system.In figure, adjusts control unit including lighting source, image acquisition memory element, human and machine interface unit, PLC control unit and screw；Its structural feature is：Described image collection memory element includes optical lens, CCD camera, image pick-up card, and described optical lens are arranged in CCD camera, and the outfan of described CCD camera is connected with image pick-up card；Described screw adjustment control unit is concentric Shuan Rou axial adjustment mechanism, and described human and machine interface unit includes monitoring interface and image processing module, and described monitoring interface and image processing module are connected with each other；The outfan of described image capture card connects the input of image processing module, and the outfan of image processing module connects the input of PLC control unit, and the outfan of described PLC control unit connects concentric Shuan Rou axial adjustment mechanism；The light irradiation that described lighting source sends, on tripping screw nail, is then received by described optical lens.
Described lighting source adopts the CCS low angle LED ring light of LDR-96LA-1-SW.
In recent years, the conventional camera mainly having based on two kinds of chips of CCD or CMOS in visual system, CCD has preferably picture quality and motility compared with CMOS camera on the image sensor；In addition, CCD is in sensitivity, noise, and when the aspect such as resolution is superior to cmos image sensor, so the present invention adopts CCD camera.Described CCD camera adopts the colored CCD industrial digital camera of Daheng's image Mercury series MER-125-30UC model；Resolution is 1292H × 964V (1,300,000 pixel).
Described optical lens adopt the mega pixel series of optical camera lens of Computer M1214-MP2 model；Its focal length is 12mm, and diaphragm coefficient F value is 1.4.
Described image capture card is typically inputted by image, modulus (A/D) is changed, EBI is formed with control, sequential and acquisition controlling, image procossing and output and 6 modules of control；Image pick-up card of the present invention is DH-VT140 tetra- tunnel Color Image Acquisition card.
Tripping screw nail vision positioning system software of the present invention includes monitoring interface and image procossing positioning and slave computer PLC program two parts of host computer.The main finishing man-machine interaction effect of described monitoring interface；Image procossing positioning completes the tripping screw nail Image semantic classification gathering, rim detection, central point are demarcated, and also carries out the work such as centre coordinate extraction simultaneously；Slave computer PLC program is responsible for servo control function.
Described monitoring interface system to grind magnificent industrial computer as platform, using Siemens's Configuration software WinCC programmed environment, picture configuration standardization, programming module method；Mainly realize system administration, process monitoring, information record and process, the function such as production data acquisition and communication debugging.
PLC control program of the present invention adopts ladder diagram modularization programming, and mastery routine is divided into difference in functionality submodule by the action being completed according to needed for system components；Program module mainly completes：Systematic parameter initialization, system reset, chopper compress and close button, energising test, image vision positioning, guiding mechanism tracking adjustment, test counting and fault alarm etc.；Whole image vision localization flow process is as shown in Figure 2, image vision positioning is an important ring in whole program module, the main image that CCD camera is caught carries out real-time pretreatment and identification positioning, complete bimetal leaf screwing centre coordinate to obtain, the coordinate data that host computer sends is converted into pulse signal and controls X by slave computer PLC, Y two direction motor action, guiding mechanism completes to screw to follow the tracks of with axial movement platform movement.
It is understandable that, above with respect to the specific descriptions of the present invention, it is merely to illustrate the present invention and is not limited to the technical scheme described by the embodiment of the present invention, it will be understood by those within the art that, still the present invention can be modified or equivalent, to reach identical technique effect；As long as meeting and using needs, all within protection scope of the present invention.
Claims (5)
1. a kind of circuit breaker adjustment screw vision positioning system, adjusts control unit including lighting source, image acquisition memory element, human and machine interface unit, PLC control unit and screw；It is characterized in that：Described image collection memory element includes optical lens, CCD camera, image pick-up card, and described optical lens are arranged in CCD camera, and the outfan of described CCD camera is connected with image pick-up card；Described screw adjustment control unit is concentric Shuan Rou axial adjustment mechanism, and described human and machine interface unit includes monitoring interface and image processing module, and described monitoring interface and image processing module are connected with each other；The outfan of described image capture card connects the input of image processing module, and the outfan of image processing module connects the input of PLC control unit, and the outfan of described PLC control unit connects concentric Shuan Rou axial adjustment mechanism；The light irradiation that described lighting source sends, on tripping screw nail, is then received by described optical lens.
2. a kind of circuit breaker adjustment screw vision positioning system according to claim 1 it is characterised in that：Described lighting source adopts the CCS low angle LED ring light of LDR-96LA-1-SW.
3. a kind of circuit breaker adjustment screw vision positioning system according to claim 1 it is characterised in that：Described CCD camera adopts the colored CCD industrial digital camera of Daheng's image Mercury series MER-125-30UC model.
4. a kind of circuit breaker adjustment screw vision positioning system according to claim 1 it is characterised in that：Described optical lens adopt the mega pixel series of optical camera lens of Computer M1214-MP2 model.
5. a kind of circuit breaker adjustment screw vision positioning system according to claim 1 it is characterised in that：Described image capture card is DH-VT140 tetra- tunnel Color Image Acquisition card.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510519562.1A CN106468762A (en) | 2015-08-23 | 2015-08-23 | A kind of circuit breaker adjustment screw vision positioning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510519562.1A CN106468762A (en) | 2015-08-23 | 2015-08-23 | A kind of circuit breaker adjustment screw vision positioning system |
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| CN106468762A true CN106468762A (en) | 2017-03-01 |
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| CN201510519562.1A Pending CN106468762A (en) | 2015-08-23 | 2015-08-23 | A kind of circuit breaker adjustment screw vision positioning system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211207A (en) * | 2018-06-29 | 2019-01-15 | 南京邮电大学 | A kind of screw identification and positioning device based on machine vision |
| CN114509000A (en) * | 2021-05-19 | 2022-05-17 | 深圳市聚鑫视科技有限公司 | Mobile phone screw fixing method and device based on laser point cloud scanning |
-
2015
- 2015-08-23 CN CN201510519562.1A patent/CN106468762A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109211207A (en) * | 2018-06-29 | 2019-01-15 | 南京邮电大学 | A kind of screw identification and positioning device based on machine vision |
| CN114509000A (en) * | 2021-05-19 | 2022-05-17 | 深圳市聚鑫视科技有限公司 | Mobile phone screw fixing method and device based on laser point cloud scanning |
| CN114509000B (en) * | 2021-05-19 | 2022-10-11 | 深圳市聚鑫视科技有限公司 | Mobile phone screw fixing method and device based on laser point cloud scanning |
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Application publication date: 20170301 |