CN111504381A - Terminal row product online detection device and detection method thereof - Google Patents
Terminal row product online detection device and detection method thereof Download PDFInfo
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- CN111504381A CN111504381A CN202010362819.8A CN202010362819A CN111504381A CN 111504381 A CN111504381 A CN 111504381A CN 202010362819 A CN202010362819 A CN 202010362819A CN 111504381 A CN111504381 A CN 111504381A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformation in the plane of the image
- G06T3/40—Scaling the whole image or part thereof
- G06T3/4038—Scaling the whole image or part thereof for image mosaicing, i.e. plane images composed of plane sub-images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0004—Industrial image inspection
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/10—Segmentation; Edge detection
- G06T7/11—Region-based segmentation
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V10/00—Arrangements for image or video recognition or understanding
- G06V10/20—Image preprocessing
- G06V10/26—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion
- G06V10/267—Segmentation of patterns in the image field; Cutting or merging of image elements to establish the pattern region, e.g. clustering-based techniques; Detection of occlusion by performing operations on regions, e.g. growing, shrinking or watersheds
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
- G06V30/14—Image acquisition
- G06V30/148—Segmentation of character regions
- G06V30/153—Segmentation of character regions using recognition of characters or words
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2200/00—Indexing scheme for image data processing or generation, in general
- G06T2200/32—Indexing scheme for image data processing or generation, in general involving image mosaicing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10004—Still image; Photographic image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30242—Counting objects in image
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V30/00—Character recognition; Recognising digital ink; Document-oriented image-based pattern recognition
- G06V30/10—Character recognition
Abstract
The invention discloses an online detection device and an online detection method for a terminal row product, and the online detection device comprises a first camera, a second camera, a third camera, a detection platform and a workbench, wherein the first camera and the second camera are fixedly connected to a cross rod, probes of the first camera and the second camera are downward, the cross rod is fixedly connected to the workbench through an inverted L-shaped frame, the third camera is fixedly connected to the workbench and positioned in front of the first camera and the second camera, the detection platform is arranged on the workbench, the first camera and the second camera are opposite to the detection platform, and the third camera faces the detection platform.
Description
Technical Field
The invention relates to terminal strip product online detection equipment and a detection method thereof, and belongs to the technical field of terminal strip quality detection equipment.
Background
The terminal block product is an important part in the industries of electricity, solar energy, automation and the like, and the production and the manufacture of the terminal block product are usually completed by a special production line. Because the degree of customization of the products is high, the products belong to small-batch and multi-batch production, the relevant links of the production are difficult to realize full automation, and most links still adopt manpower as a main link. The detection link is the last process before the product is off-line, and the main content is to detect whether the character label on the terminal strip has installation errors, such as wrong characters, missing characters, disorder and other defects. In the prior art, the detection operation is completed by manual detection. Through the manual operation mode, its efficiency is lower, the error rate is higher, can't satisfy the demand that improves quality control, expand the productivity.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides a terminal strip product on-line measuring equipment and detection method to solve the problem that exists among the above-mentioned prior art.
The invention adopts the technical scheme that the terminal row product online detection equipment comprises a first camera, a second camera, a third camera, a detection platform and a workbench, wherein the first camera and the second camera are fixedly connected to a cross rod, probes of the first camera and the second camera are downward, an L-shaped frame with the cross rod inverted is fixedly connected to the workbench, the third camera is fixedly connected to the workbench and positioned in front of the first camera and the second camera, the detection platform is arranged on the workbench, the first camera and the second camera are opposite to the detection platform, and the third camera faces the detection platform.
Preferably, the detection platform is provided with a limiting mechanism for limiting two sides of the terminal row in the length direction.
Preferably, the limiting mechanism comprises three limiting pins, two of the three limiting pins are fixedly connected to one side of the detection platform side by side, and the remaining one of the three limiting pins is fixedly connected to the detection platform and located in the middle of the other two opposite sides.
Preferably, a plurality of holes for inserting the limit pins are formed in the detection platform.
Preferably, the cross bar is made of aluminum profiles, T-shaped grooves are formed in four sides of the cross bar, the first camera and the second camera are fixedly connected to the bent L-shaped mounting plate respectively, and the L-shaped mounting plate is fixedly connected to the T-shaped grooves of the cross bar through T-shaped screws and nuts.
Preferably, above-mentioned third camera fixed connection is on connecting plate upper portion, and the connecting plate lower part is provided with vertical bar hole, adopts the screw to pass vertical bar hole and with connecting plate fixed connection in workstation front side.
Preferably, the front side of the workbench is provided with a plurality of threaded holes for mounting the connecting plate.
Preferably, the first camera, the second camera and the third camera are connected to an industrial personal computer, and the industrial personal computer is connected to a display screen.
A detection method of terminal row product on-line detection equipment comprises the following steps:
(1) manually placing the qualified terminal strip at a limiting mechanism of the detection platform, clicking to shoot and storing qualified image data;
(2) manually and successively placing the products of the same batch of terminal rows to a limiting mechanism of a detection area, clicking to take a picture, automatically detecting the difference between the current taken picture and the qualified picture stored in the step (1), if the difference exists, displaying an alarm, marking the alarm area and the error information of the terminal rows, and if the difference does not exist between the current taken picture and the qualified picture, displaying that the products are qualified, and displaying the detection result through a display; the detection data comprises information such as the number, color, line sequence and the like of the terminal rows, and the detection beat is 5 seconds;
(3) and (3) if a new batch of products is detected, repeating the steps (1) to (2).
The processing method for detecting the picture data comprises the following steps: identifying each character on the terminal block by an optical character detection (OCR) algorithm, and counting the characters to obtain the detection of the number and the line sequence of the terminal block; and adopting a color segmentation method to obtain the detection of the terminal strip color information.
The invention has the beneficial effects that: compared with the prior art, the terminal row detection device has the advantages that the number, the color and the line sequence of the terminals are recognized through the first camera and the second camera, the line sequence of the terminals is recognized through the third camera, so that the color, the line sequence and the quantity of the terminal rows photographed by the detection platform are realized, image data are transmitted to the industrial personal computer, and whether the terminal rows are installed correctly or not is conveniently detected.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a front view configuration of the present invention;
FIG. 3 is a schematic diagram of the right-hand side view of the present invention;
fig. 4 is a schematic top view of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Embodiment 1 as shown in fig. 1-4, an online detection device for a terminal strip product includes a first camera 1, a second camera 2, a third camera 3, a detection platform 4 and a workbench 5, wherein the first camera 1 and the second camera 2 are fixedly connected to a cross bar 6, probes of the first camera 1 and the second camera 2 face downwards, the cross bar 6 is fixedly connected to the workbench 5 through an inverted L-shaped frame 7, the third camera 3 is fixedly connected to the workbench 5 and located in front of the first camera 1 and the second camera 2, the detection platform 4 is arranged on the workbench 4, the first camera 1 and the second camera 2 face the detection platform 4, and the third camera 3 faces the detection platform 4.
Preferably, above-mentioned testing platform 4 is provided with the stop gear of spacing terminal row length direction both sides for the guide rail of the terminal row that spacing installation is good improves detection efficiency, and qualified product and the product of waiting to examine are located same position detection moreover, and it is higher to detect the accuracy nature.
Preferably, above-mentioned stop gear includes three spacer pin 8, and two fixed connection side by side in three spacer pin 8 are in testing platform 4 one side, and remaining a fixed connection just is located two relative one side middle parts in addition on testing platform 4, adopts the stop gear of spacing round pin structure, simple structure, and spacing convenience is with low costs, the preparation of being convenient for, and rotatable cylinder has been cup jointed to spacer pin 8, and the guide rail of being convenient for is fixed a position fast.
Preferably, the hole that the spacer pin 8 was pegged graft on above-mentioned testing platform 4 sets up a plurality ofly, is convenient for realize not the not terminal row of equidimension and detects, improve equipment utilization and rate, reduction equipment cost.
Preferably, above-mentioned horizontal pole 6 adopts the aluminium alloy, four sides are provided with T type groove, first camera 1 and second camera 2 are equallyd divide do not fixed connection on L type mounting panel 9 of bending, L type mounting panel 9 passes through T type screw and nut fixed connection on the T type groove of horizontal pole 6, the section bar structure, simple to operate installs and removes easily, connect reliably stably, the section bar structure in T type groove also is convenient for the regulation of interval between camera horizontal direction position and the two cameras in addition, more do benefit to the detection.
Preferably, 3 fixed connection of above-mentioned third camera are on 10 upper portions of connecting plate, and 10 lower parts of connecting plate are provided with vertical bar hole 11, adopt the screw to pass vertical bar hole 11 with connecting plate fixed connection in 1 front side of workstation, can realize the vertical direction altitude mixture control of third camera, are convenient for just detect the discernment to the terminal row.
Preferably, a plurality of threaded holes for mounting the connecting plate 10 are formed in the front side of the workbench 1, so that the third camera can be conveniently mounted at different positions.
Preferably, the first camera 1, the second camera 2 and the third camera 3 are connected to an industrial personal computer 12, the industrial personal computer 12 is connected to a display screen 13, and the industrial personal computer 12 and the display screen 13 are placed on a desktop 14.
The position of the workpiece to be photographed is divided into two parts, one is located above and the other is located at the side, and all characters to be recognized appear in the two areas. The upper two cameras are used for shooting images of the upper surface of the workpiece, and the lower cameras are used for shooting images of the side surfaces of the workpiece. The two cameras above need to be calibrated through a calibration technology, images shot by the two cameras are spliced through a splicing algorithm, and mutually overlapped parts are removed to form a finished image for processing by a subsequent processing algorithm. The images obtained by the three cameras are sent to a computer through a transmission cable, and various information of the terminal strip is finally obtained through processing of algorithms such as character recognition and detection, color recognition and the like.
Example 2: a detection method of terminal row product on-line detection equipment comprises the following steps:
(1) manually placing the qualified terminal strip at a limiting mechanism of the detection platform, clicking to shoot and storing qualified image data; the detection area range is greater than 15% of the size of the terminal block;
(2) manually and successively placing the products of the same batch of terminal rows to a limiting mechanism of a detection area, clicking to take a picture, automatically detecting the difference between the current taken picture and the qualified picture stored in the step (1), if the difference exists, displaying an alarm, marking the alarm area and the error information of the terminal rows, and if the difference does not exist between the current taken picture and the qualified picture, displaying that the products are qualified, and displaying the detection result through a display; the detection data comprises information such as the number, color, line sequence and the like of the terminal rows, and the detection beat is 5 seconds;
(3) and (3) if a new batch of products is detected, repeating the steps (1) to (2).
The detection data information can be inquired in real time, and the detection image can be stored in 100 sheets in a mode of covering image data.
The processing method for detecting the picture data comprises the following steps: identifying each character on the terminal block by an optical character detection (OCR) algorithm, and counting the characters to obtain the detection of the number and the line sequence of the terminal block; and adopting a color segmentation method to obtain the detection of the terminal strip color information.
Wherein the Optical Character Recognition (OCR) algorithm comprises the steps of:
(1) preprocessing, namely preprocessing image filtering and image sharpening to achieve the purpose of reducing image noise;
(2) the image segmentation technology is used for segmenting the noise-reduced image and selecting a target, the image segmentation uses the segmentation in space, namely the segmentation is carried out according to the region where the character is located, and the spatial information is from templates of each model and aims to accurately position the region where the character is located;
(3) extracting characters, namely accurately segmenting and extracting the characters in a character area, segmenting the characters according to contrast, segmenting the characters according to the background color of the area where each character is located and the difference information between the characters, and removing the influence of an interference area;
(4) and (4) character recognition, finally, calling a character database by a system, recognizing the characters and acquiring specific information of the characters.
The Optical Character Recognition (OCR) algorithm can automatically complete the recognition of characters, can replace manual work, and has the advantages of improving the efficiency and the accuracy.
The detection platform provided by the invention can be used for photographing the colors, line sequences and quantity of the terminal rows, transmitting image data to the industrial personal computer and calculating whether the terminal rows are correctly installed or not through a visual algorithm.
The use environment of the invention is as follows: indoor, there is no direct sunlight. The terminal row that uses in can being to the switch board detects, and the maximum width that the terminal row was placed is about 130mm, and maximum length is 430mm, and the detection success rate reaches more than 99.5%, and terminal row visual detection equipment storage qualified product image, detection system shoot the image at every turn after with qualified product image color, line order, quantity contrast, if have the mistake mark on the image.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention, and therefore, the scope of the present invention should be determined by the scope of the claims.
Claims (10)
1. The terminal row product online detection equipment is characterized by comprising a first camera (1), a second camera (2), a third camera (3), a detection platform (4) and a workbench (5), wherein the first camera (1) and the second camera (2) are fixedly connected onto a cross rod (6), probes of the first camera (1) and the second camera (2) face downwards, the cross rod (6) is fixedly connected onto the workbench (5) through an inverted L-shaped frame (7), the third camera (3) is fixedly connected onto the workbench (5) and located in front of the first camera (1) and the second camera (2), the detection platform (4) is arranged on the workbench (4), the first camera (1) and the second camera (2) face the detection platform (4), and the third camera (3) faces towards the detection platform (4).
2. The on-line detection device of a terminal block product according to claim 1, wherein: the detection platform (4) is provided with limiting mechanisms for limiting the two sides of the terminal strip in the length direction.
3. The on-line detection device of a terminal block product according to claim 2, wherein: stop gear includes three spacer pin (8), and two fixed connection side by side in three spacer pin (8) are in testing platform (4) one side, remain one fixed connection and just be located another two relative one side middle part on testing platform (4).
4. The on-line inspection apparatus of claim 3, wherein: the holes for inserting the limit pins (8) on the detection platform (4) are arranged in a plurality.
5. The terminal row product on-line detection equipment as claimed in claim 1, wherein the cross bar (6) is made of aluminum profile, T-shaped grooves are formed in four sides of the cross bar, the first camera (1) and the second camera (2) are fixedly connected to a bent L-shaped mounting plate (9), and the L-shaped mounting plate (9) is fixedly connected to the T-shaped grooves of the cross bar (6) through T-shaped screws and nuts.
6. The on-line detection device of a terminal block product according to claim 1, wherein: third camera (3) fixed connection is on connecting plate (10) upper portion, and connecting plate (10) lower part is provided with vertical bar hole (11), adopts the screw to pass vertical bar hole (11) and with connecting plate fixed connection in workstation (1) front side.
7. The on-line inspection apparatus of claim 6, wherein: the front side of the workbench (1) is provided with a plurality of threaded holes for installing the connecting plates (10).
8. The on-line detection device of a terminal block product according to claim 1, wherein: first camera (1), second camera (2) and third camera (3) are connected to industrial computer (12), and industrial computer (12) are connected to display screen (13).
9. The detection method of the terminal strip product on-line detection equipment according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
(1) manually placing the qualified terminal strip at a limiting mechanism of the detection platform, clicking to shoot and storing qualified image data;
(2) manually and successively placing the products of the same batch of terminal rows to a limiting mechanism of a detection area, clicking to take a picture, automatically detecting the difference between the current taken picture and the qualified picture stored in the step (1), if the difference exists, displaying an alarm, marking the alarm area and the error information of the terminal rows, and if the difference does not exist between the current taken picture and the qualified picture, displaying that the products are qualified, and displaying the detection result through a display; the detection data comprises information such as the number, color, line sequence and the like of the terminal rows, and the detection beat is 5 seconds;
(3) and (3) if a new batch of products is detected, repeating the steps (1) to (2).
10. The detection method of the terminal row product on-line detection device according to claim 9, characterized in that: the processing method for detecting the picture data comprises the following steps: identifying each character on the terminal strip through an optical character detection algorithm, and obtaining the detection of the number and the line sequence of the terminal strip through counting and counting the characters; and adopting a color segmentation method to obtain the detection of the terminal strip color information.
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| CN202010362819.8A CN111504381A (en) | 2020-04-30 | 2020-04-30 | Terminal row product online detection device and detection method thereof |
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Cited By (2)
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| CN112134049A (en) * | 2020-09-30 | 2020-12-25 | 上海徕木电子股份有限公司 | PCB-passing plate type connector capable of observing and checking back annular gap |
| CN112134048A (en) * | 2020-09-30 | 2020-12-25 | 上海徕木电子股份有限公司 | PCB-passing plate type connector capable of being observed and checked positively |
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