CN204389671U - A kind of streamline identifies automatically the device of low-voltage current mutual inductor appearance information - Google Patents
A kind of streamline identifies automatically the device of low-voltage current mutual inductor appearance information Download PDFInfo
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- CN204389671U CN204389671U CN201420783861.7U CN201420783861U CN204389671U CN 204389671 U CN204389671 U CN 204389671U CN 201420783861 U CN201420783861 U CN 201420783861U CN 204389671 U CN204389671 U CN 204389671U
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Abstract
A kind of streamline identifies automatically the device of low-voltage current mutual inductor (3) appearance information, it is characterized in that: comprise to be located on described calibrating streamline, one surrounded the semiclosed cover only reserving mutual inductor and import and export by acrylic board, the top side configuration of described cover has cover end face high-speed image sampling device (1) and cover end face light source (2), a side of cover is configured with cover side high-speed image sampling device (5) and cover side light source (4).The utility model automatically can realize the identification of identification to the reading of low-voltage current mutual inductor name plate information and judgement, secondary current connection terminal screw, the identification of polarity mark, center bore and position and body slight crack on streamline, and efficiency at least improves 10 times.
Description
Technical field
The utility model relates to the device a kind of low-voltage current mutual inductor calibrating streamline identifying automatically low-voltage current mutual inductor appearance information.
Background technology
Low-voltage current mutual inductor is electric energy metering device the most frequently used in electric system, volume is little, quantity is many, calibration operation amount is large feature that it has.In order to improve the work efficiency to low-voltage current mutual inductor calibrating, saving human cost, realizing the centralized management of measurement instrument simultaneously, grid company is progressively promoting the application of low voltage current transformer automatic detection streamline.Automatic Verification line can realize the fully-automated synthesis of insulation to low-voltage current mutual inductor, error and withstand voltage properties, substantially increases the work efficiency of calibrating to a certain extent.But existing low voltage current transformer automatic detection streamline cannot realize the automatic identification to mutual inductor appearance information, outward appearance on streamline cannot there be is incomplete sample (as nameplate mistake, connection terminal disappearance, shell breakage etc.) to pick out.Therefore, the detection that current automatic calibration technology still needs artificial participation could realize low-voltage current mutual inductor outward appearance.
Utility model content
Technical problem to be solved in the utility model, just be to provide a kind of device examining and determine identification low-voltage current mutual inductor appearance information automatically on streamline, adopt device of the present utility model, on streamline, automatically can realize the identification to the reading of low-voltage current mutual inductor name plate information and judgement, the identification of secondary current connection terminal, the identification of polarity mark and body slight crack.
Solve the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
A kind of device examining and determine identification low-voltage current mutual inductor 3 appearance information automatically on streamline, it is characterized in that: comprise to be located on described calibrating streamline, one to be surrounded by acrylic board and only reserve the semiclosed cover that mutual inductor imports and exports B1, B2, the top side configuration of described cover inside has cover end face high-speed image sampling device 1 and cover end face light source 2, a side of cover is configured with cover side high-speed image sampling device 5 and cover side light source 4.
Described cover end face high-speed image sampling device 1 is positioned at mutual inductor outward appearance on calibrating streamline and takes pictures directly over station, described cover end face light source 2 fix for brightness strip source, be positioned at cover end face high-speed image sampling device 1 front; Described cover side high-speed image sampling device 5 is positioned at mutual inductor outward appearance on calibrating streamline and takes pictures the front-left of station, and described cover side light source 4 is the adjustable annular light source of brightness, is positioned at the dead ahead of cover side high-speed image sampling device 5.
As shown in Figures 1 to 4, take pictures station due to mutual inductor outward appearance on calibrating streamline can original place rotating 360 degrees, described light source and high-speed image sampling device, the end face of the low-voltage current mutual inductor in cover A and the photo of four sides can be taken respectively, by carrying out Intelligent treatment to the photographic intelligence in five faces, obtain the appearance information of low-voltage current mutual inductor.
Adopt said apparatus on calibrating streamline, automatically identify the method for low-voltage current mutual inductor appearance information, comprise the following steps:
S1, allows the low-voltage current mutual inductor on streamline enter cover from entrance, and under the effect of light source 2,4, high-speed image sampling device 1,5 takes the overlooking of low-voltage current mutual inductor end face and four sides, side photo respectively;
S2, after photographing the top view photograph of low-voltage current mutual inductor end face, utilizes image sampling technology to extract nameplate part in top view photograph, and recycling average filtration technology carries out pre-service to top view photograph;
S3, when detecting name plate information, first choosing the character that will identify to learn, setting up character repertoire; In target area, the character read respectively in character and character repertoire compares again, arranges the accuracy rate of smallest match mark and character number percent size raising character machining;
S4, divides three parts to detect respectively the model in nameplate: for Part I, radix point are be Part III after Part II, radix point before radix point, and three parts are all mated and just thought that model is correct;
S5, adopts the secondary terminals screw information on circular measuring technique detection top view photograph
In top view photograph, utilize radial pattern searching method to search marginal point, then the point of discovery is utilized to search most suitable circumference, thus find a circumference or an annular, and determine the center origin of circumference or annular, to determine whether there is circular screw in top view photograph;
The aperture reselected in the middle of two screws utilizes " accurate template discovery " technology to carry out secondary location;
Possible rotation in search restriction is set to ± 5 degree, possible pantograph ratio is set to 0.9-1.1, utilizes " accurate template discovery " technology to detect contact polarity mark S1, S2 in top view photograph and the polarity mark P1 in the photo of side;
S6, adopts circular measuring technique equally to the location in the low-voltage current mutual inductor punching aperture in the photo of side, determines that low-voltage current mutual inductor once walks position and the size in aperture; Meanwhile, adopt image geometry treatment technology that circular development is orthogonal;
S7, adopt speckle-detection technique to process four side photos, whether four sides detecting low-voltage current mutual inductor exist crackle;
In target area, use fixed threshold method to search random or unformed object, by limiting basic area, width and highly filtering spot, thus by obvious crack detection out.
Beneficial effect: adopt apparatus and method of the present utility model, on streamline, automatically can realize the identification of the identification to the reading of low-voltage current mutual inductor name plate information and judgement, secondary current connection terminal screw, the identification of polarity mark, center bore and position and body slight crack, efficiency at least improves 10 times.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of device calibrating streamline identifying automatically low-voltage current mutual inductor 3 appearance information;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the vertical view that Fig. 1 removes cover;
Fig. 4 is the schematic perspective view that Fig. 1 removes cover.
Embodiment
As Figure 1-Figure 4, calibrating streamline of the present utility model identifies automatically the device embodiment of low-voltage current mutual inductor 3 appearance information, comprise to be located on described calibrating streamline, one to be surrounded by acrylic board and only reserve the semiclosed cover that mutual inductor imports and exports B1, B2, the top side configuration of cover inside has cover end face high-speed image sampling device 1 and cover end face light source 2, the side of cover inside is configured with cover side high-speed image sampling device 5 and cover side light source 4; Cover end face high-speed image sampling device 1 is positioned at mutual inductor outward appearance on calibrating streamline and takes pictures directly over station, cover end face light source 2 fix for brightness strip source, be positioned at cover end face high-speed image sampling device 1 front; Cover side high-speed image sampling device 5 is positioned at mutual inductor outward appearance on calibrating streamline and takes pictures the front-left of station, and cover side light source 4 is the adjustable annular light source of brightness, is positioned at the dead ahead of cover side high-speed image sampling device 5.
See Fig. 1, under low-voltage current mutual inductor being inserted the environment of a relative closure, and adopt strip source and annular light source jointly to image collecting device illumination, wherein the brightness of strip source is fixing, and the brightness of annular light source is adjustable.
Adopt said apparatus on calibrating streamline, automatically identify the method for low-voltage current mutual inductor appearance information, comprise the following steps:
Low-voltage current mutual inductor on streamline enters cover from entrance, and under the effect of light source 2,4, high-speed image sampling device 1,5 takes photo top view photograph, the P2 of low-voltage current mutual inductor end face and side respectively;
After photographing the photo top view photograph of low-voltage current mutual inductor end face, utilize image sampling technology to extract nameplate part in photo, recycling average filtration technology comparison film carries out pre-service;
When detecting name plate information, first choosing the character that will identify to learn, setting up character repertoire; In target area, the character read respectively in character and character repertoire compares again, by arranging the accuracy rate of smallest match mark and character number percent size raising character machining;
In addition, the width of each character and being highly not quite similar, as: LMZ2D-0.5, if according to same standard configuration, when the white dust having particle larger, just very easily flase drop occurs, the means therefore taked technically are by " LMZ2D-0 ", ". " and " 5 ", be divided into three parts to detect respectively, three parts are all mated and are just thought that model is correct;
Adopt the secondary terminals screw information on circular measuring technique detection photo top view photograph;
In top view photograph, utilize radial pattern searching method to search marginal point, then the point of discovery is utilized to search most suitable circumference, thus find a circumference or an annular, and determine the center origin of circumference or annular, to determine whether there is circular screw in top view photograph;
To in the photo of side, the location in a low-voltage current mutual inductor punching aperture adopts circular measuring technique equally, thus determines that low-voltage current mutual inductor once walks position and the size in aperture; Meanwhile, adopt image geometry treatment technology that circular development is orthogonal, facilitate subsequent detection and process;
Adopt speckle-detection technique to process each photo, detect each side of low-voltage current mutual inductor and whether there is crackle.In target area, use fixed threshold method to search random or unformed object, by limiting basic area, width and highly filtering spot, thus by obvious crack detection out.Image information is transferred in outward appearance automatic recognition software by the quick image capture device clearly in top and side by image collecting device.First by the vertical view of top camera shooting mutual inductor, utilize image sampling technology to extract nameplate part in photo, recycling average filtration technology comparison film carries out pre-service.
When considering detection, the otherness of position during different mutual inductor, avoids causing flase drop, when optimum configurations, possible rotation in search restriction is set to ± 5 degree, possible pantograph ratio is set to 0.9-1.1.Polarity detects to utilize " accurate template discovery " location technology to have that it's too late to screw, and the aperture reselected in the middle of two screws carries out " accurate template discovery " location, is further increased the precision of location by this secondary positioning technique;
And then the character recognition technologies by utilizing system to set up, smallest match mark and character number percent change in size are set rightly, in conjunction with character repertoire realize to the identification of famous brand information with mate.
For side image, in order to effectively carry out surface defects detection, just circular development is orthogonal, pass through speckle-detection technique, automatically random or unformed object is searched, output sequence by basic area, the width of restriction and highly can filter spot, thus by obvious crack detection out.
On the position and Dimensions recognition of screw and side circular aperture, adopting circular survey instrument to utilize in target area radial pattern searching method to search marginal point, searching most suitable circumference or annular through comparing, export the center origin of circumference or annular.
Claims (2)
1. a streamline identifies automatically the device of low-voltage current mutual inductor (3) appearance information, it is characterized in that: comprise one and be located on described calibrating streamline, surrounded the semiclosed cover only reserving mutual inductor import and export by acrylic board, the top side configuration of described cover inside has cover end face high-speed image sampling device (1) and cover end face light source (2), a side of cover inside is configured with cover side high-speed image sampling device (5) and cover side light source (4).
2. streamline according to claim 1 identifies automatically the device of low-voltage current mutual inductor (3) appearance information, it is characterized in that: cover end face high-speed image sampling device (1) of described cover inside top surface is positioned at mutual inductor outward appearance on calibrating streamline and takes pictures directly over station, described cover end face light source (2) is the fixing strip source of brightness, is positioned at cover end face high-speed image sampling device (1) front; Cover side high-speed image sampling device (5) of described cover inner side is positioned at mutual inductor outward appearance on calibrating streamline and takes pictures the front-left of station, and described cover side light source (4) is the adjustable annular light source of brightness, the dead ahead being positioned at cover side high-speed image sampling device (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420783861.7U CN204389671U (en) | 2014-12-11 | 2014-12-11 | A kind of streamline identifies automatically the device of low-voltage current mutual inductor appearance information |
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| CN201420783861.7U CN204389671U (en) | 2014-12-11 | 2014-12-11 | A kind of streamline identifies automatically the device of low-voltage current mutual inductor appearance information |
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| CN204389671U true CN204389671U (en) | 2015-06-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483647A (en) * | 2014-12-11 | 2015-04-01 | 广东电网有限责任公司电力科学研究院 | Device and method for automatically recognizing appearance information of low-voltage current transformer in production line |
| CN107271943A (en) * | 2017-06-05 | 2017-10-20 | 广西电网有限责任公司电力科学研究院 | Switching device and method for standard verification secondary wiring of current mutual inductor |
-
2014
- 2014-12-11 CN CN201420783861.7U patent/CN204389671U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483647A (en) * | 2014-12-11 | 2015-04-01 | 广东电网有限责任公司电力科学研究院 | Device and method for automatically recognizing appearance information of low-voltage current transformer in production line |
| CN107271943A (en) * | 2017-06-05 | 2017-10-20 | 广西电网有限责任公司电力科学研究院 | Switching device and method for standard verification secondary wiring of current mutual inductor |
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