CN107818582B - Detection system and method for full-automatically identifying carrier tape reel angle and bar code information - Google Patents
Detection system and method for full-automatically identifying carrier tape reel angle and bar code information Download PDFInfo
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Abstract
The utility model provides a detection system of full-automatic identification carrier band reel angle and bar code information, including treater, storage device and image acquisition device, image acquisition device is used for gathering the image of the carrier band reel that awaits measuring, the treater is handled the image.
Description
Technical Field
The disclosure relates to the field of detection systems, in particular to a detection system and a method for fully automatically identifying carrier tape reel angles and bar code information.
Background
With the continuous deepening of the transformation and upgrading of the industry in China, the enterprise demands for quality optimization, energy consumption reduction and production efficiency improvement are more and more urgent. In recent years, visual inspection technology for computer, communication and consumer electronics has been rapidly developed, and relates to a plurality of fields such as production flow, mass flow and logistics. In China, due to the limits of technical strength and process level, a carrier tape reel related detection system serving as a typical 3C system is still in a preliminary development stage, market share is low, and machine vision serving as the core of the system is directly related to the precision, reliability and stability of the whole system. In order to ensure the running precision and the consistency of the marking disc of the detection system, the machine vision not only needs to realize the accurate measurement of the data, especially the angle information of the carrying tape reel, but also needs to accurately identify all the bar code (including one-dimensional code and two-dimensional code) information on the carrying tape reel.
Different manufacturers, different batches, the carrier band reel shape of different components and parts is different, and its guiding hole position of different carrier band reels or fixed braid head department rectangle size are inconsistent, and manual identification and check-up need more manpower and inefficiency, the error rate is high, uses traditional detecting system to be difficult to the different carrier band reels of accurate location simultaneously. The invention provides a detection system suitable for identifying angles and bar codes of various carrier tape reels, which is insensitive to the size of the carrier tape reels and the relative position of the carrier tape reels and a lens within the depth of field range of the lens, and improves the stability of the detection system. In addition, the system is suitable for the carrier tape reels at all the positions of the guide holes, so that the application range is wider, and the requirements of large-scale, multi-batch, high-quality and high-efficiency production in industrial production can be met.
Disclosure of Invention
The utility model provides a detection system of full-automatic identification carrier band reel angle and bar code information, includes treater, storage device and image acquisition device, image acquisition device is used for gathering the image of the carrier band reel that awaits measuring, the treater carries out following procedure step:
s1, reading the image, judging whether a template file exists in the storage device, if the template file is not established, automatically entering a modeling process by the detection system, and if the template file exists, entering the step S2;
s2, reading a template file, positioning a first circle and a central hole area in the image, deducting the central hole area in the first circle area, and determining the residual area as a search area of the template;
s3, in the search area, matching a guide hole in the image with the first circle by using the template, and converting the angle of the carrier tape reel to be tested through the center position coordinates of the guide hole and the first circle;
s4, calculating the center position coordinates of the bar codes and identifying bar code information according to the position relation between the bar codes on the carrier tape reel to be tested and the guide holes and the first circle;
s5, verifying the angle information of the to-be-tested carrier tape reel obtained in the step S3 according to the center position coordinates of the guide hole and the center position coordinates of the bar code;
and S6, selecting to finish or detect again according to the verification result, and determining the final angle and bar code information of the carrier tape reel to be detected.
The first circle is used for calibrating a reference center of the carrier tape reel, and the central hole and the guide hole are both in the area of the first circle.
The position of the first circle is fixed, and the material belt is fixed on the carrying belt reel around the first circle area; the first circle can also be replaced by the outline of the carrying reel and is used for calibrating the center of the carrying reel; three guide holes are formed, the interval is 120 degrees, and one of the guide holes is randomly selected to be used as a positioning circle; because the central hole needs to be matched with different positioning columns in the carrier tape reel detection system, the image information of the central structure is unfavorable for positioning detection, and the step S2 deducts the central hole area to reduce the search range and improve the detection efficiency.
Further, the modeling process of step S1 includes:
a, establishing a template of the guide hole;
b, establishing a template of the first circle;
c, storing all the template information in the detection directory of the storage device.
Wherein, the guide hole template and the first round template are two retractable round outline templates.
Further, in step S3, the angle of the tape carrier reel is obtained by converting an included angle between a line connecting the centers of the guide hole and the first circle and the positive direction of the X axis.
Further, in step S5, the verification method includes: calculating the angle of the carrier tape reel to be tested by using the center position coordinates of the guide hole and the center position coordinates of the bar code, comparing the angle with the angle in the step S3, and verifying whether the difference value of the angle and the angle is within the error range.
The absolute value of the difference between the angle in the step S3 and the angle in the step S5 needs to be smaller than the error, and if the absolute value exceeds the error range, the two angle measurements have a gross error and need to be detected again. The error range is set according to actual precision requirements.
Further, the end condition in step S6 is: the verification result is within the error range.
Further, the method for identifying the carrier tape reel angle and the bar code information by using the detection system comprises the following steps:
s1, collecting and reading the image of the carrier tape reel to be tested, judging whether a template file exists in the storage device, if the template file is not established, automatically entering a modeling process by the detection system, and if the template file exists, entering the step S2;
s2, reading a template file, positioning a first circle and a central hole area in the image, deducting the central hole area in the first circle area, and determining the residual area as a search area of the template;
s3, matching a guide hole and the first circle in the image by using a template in the search area, and converting the angle of the carrier tape reel to be tested through the center position coordinates of the guide hole and the first circle;
s4, calculating the center position coordinates of the bar codes and identifying bar code information according to the position relation between the bar codes on the carrier tape reel to be tested and the guide holes and the first circle;
s5, verifying the angle information of the to-be-tested carrier tape reel obtained in the step S3 according to the center position coordinates of the guide hole and the center position coordinates of the bar code;
and S6, selecting to finish or detect again according to the verification result, and determining the final angle and bar code information of the carrier tape reel to be detected.
The beneficial effect of this disclosure:
1) the detection system is rapid, accurate, wide in application range and strong in stability, can be self-adaptive to the relative positions of the carrier tape reel and the image acquisition device, feeds back detection angle information, and realizes high-precision identification and detection of the carrier tape reel and the bar code at different guide hole positions;
2) the search area of the template and the bar code can be reduced to the maximum extent, and the detection efficiency is greatly improved;
3) the image processing code is simple, and the method can be applied to carrier tape reel positioning and bar code visual detection in various software environments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.
FIG. 1 is an exemplary diagram of two carrier tape reel configurations for a fully automated carrier tape reel angle and barcode information identification detection system and method according to embodiments of the present disclosure;
FIG. 2 is a flowchart of the detection system operation of the detection system and method for fully automatically identifying carrier tape reel angle and barcode information in accordance with embodiments of the present disclosure;
FIG. 3 is a schematic diagram of a template for a fully automated carrier tape reel angle and barcode information identification detection system and method according to embodiments of the present disclosure;
FIG. 4 is a schematic view of a search area of a template for a fully automated carrier tape reel angle and barcode information identification detection system and method according to embodiments of the present disclosure;
FIG. 5 is a schematic view of a barcode location of a fully automated carrier tape reel angle and barcode information identification detection system and method according to embodiments of the present disclosure;
fig. 6 is a schematic diagram of the detection result of the detection system and method for fully automatically identifying the carrier tape reel angle and the barcode information according to the embodiment of the present disclosure.
Detailed Description
The present disclosure is described in further detail below with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant disclosure and not restrictive of the disclosure. It should be further noted that, for the convenience of description, only the portions relevant to the present disclosure are shown in the drawings.
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying examples and figures 1-6.
The detection system for fully automatically identifying the angle of the carrier tape reel and the bar code information comprises a processor, a storage device and an image acquisition device, wherein the image acquisition device is used for acquiring an image of the carrier tape reel to be detected, and the processor executes the following program steps:
s1 reading the image, judging whether there is template file in the storage device, if not, the detection system will automatically enter the modeling process, if there is template file, then enter step S2;
s2, reading the template file, positioning a first circle and a central hole area in the image, deducting the central hole area in the first circle area, and determining the residual area as a search area of the template;
s3, in the search area, matching the guide hole and the first circle in the image by using the template, and converting the angle of the carrier tape reel to be tested through the center position coordinates of the guide hole and the first circle;
s4, calculating the center position coordinates of the bar codes and identifying the bar code information according to the position relation between the bar codes on the carrier tape reel to be tested and the guide holes and the first circle;
s5, verifying the angle information of the to-be-tested carrier tape reel obtained in the step S3 according to the center position coordinates of the guide hole and the center position coordinates of the bar code;
and S6, finishing or detecting again according to the verification result, and determining the final angle and bar code information of the carrier tape reel to be detected.
The first circle is used for calibrating the reference center of the carrier tape reel, and the central hole and the guide hole are both in the area of the first circle.
The modeling flow of step S1 includes:
a, establishing a template of a guide hole;
b, establishing a template of a first circle;
and c, storing all the template information in the detection directory of the storage device.
In step S3, the angle of the tape carrier reel is obtained by converting the angle between the line connecting the centers of the guide hole and the first circle and the positive direction of the X axis.
The verification method in step S5 is: and calculating the angle of the carrier tape reel to be measured by using the center position coordinates of the guide hole and the center position coordinates of the bar code, comparing the angle with the angle in the step S3, and verifying whether the difference value of the angle and the angle is within the error range.
The error range is set according to the actual precision requirement.
The end condition of step S6 is: the verification result is within the error range.
The method for identifying the carrier tape reel angle and the bar code information by using the detection system comprises the following steps:
s1, collecting and reading the image of the carrier tape reel to be tested, judging whether a template file exists in the storage device, if the template file is not established, automatically entering a modeling process by the detection system, and if the template file exists, entering the step S2;
s2, reading the template file, positioning a first circle and a central hole area in the image, deducting the central hole area in the first circle area, and determining the residual area as a search area of the template;
s3, in the search area, matching the guide hole and the first circle in the image by using the template, and converting the angle of the carrier tape reel to be tested through the center position coordinates of the guide hole and the first circle;
s4, calculating the center position coordinates of the bar codes and identifying the bar code information according to the position relation between the bar codes on the carrier tape reel to be tested and the guide holes and the first circle;
s5, verifying the angle information of the to-be-tested carrier tape reel obtained in the step S3 according to the center position coordinates of the guide hole and the center position coordinates of the bar code;
and S6, finishing or detecting again according to the verification result, and determining the final angle and bar code information of the carrier tape reel to be detected.
In more detail, the present invention is described in more detail,
fig. 1 shows two typical carrier tape reel configurations, and fig. 2 shows a flow chart of the operation of the detection system to identify carrier tape reel angle and bar code information.
Firstly, acquiring a reel image of a carrier tape to be tested, reading the image, judging whether a template file exists, and if the template file is not established, entering a modeling flow by a detection system: manually positioning the position of the guide hole of the template image, establishing a guide hole outline template, obtaining a first circle outline information template in the same way as shown in fig. 3(b), and storing all templates in a detection directory.
The area for roughly locating the first circle and the central hole of the image to be measured by using the template file is shown in fig. 4. Fig. 4(a) shows a first circle region of the rough positioning of the detection system, and fig. 4(b) shows a center hole region of the rough positioning of the detection system. Because the central hole needs to be matched with different positioning columns in the related detection system of the carrier tape reel, the image information of the central structure is unfavorable for positioning detection, the central hole area is deducted to reduce the search range, the search area of the template shown in figure 4(c) is obtained, the left figure visually reflects the position of the search area in the whole image to be detected, and the right figure is the determined search area information. It is easy to see that the detection system can reduce the search area to the maximum extent while ensuring the integrity of the positioning information, greatly improve the search speed and realize the real-time data transmission.
Matching a guide hole and a first circle of the reel to be tested in a search area by utilizing a template file, wherein the guide hole and the first circle are positioning circles, calculating an included angle between a circle center connecting line of the positioning circles and the positive direction of an X axis by system software, and converting an angle theta of the carrier tape reel1。
In the search area, the system calculates the rough position of the bar code according to the position relationship between the bar code and the positioning circle as shown in fig. 5, thereby realizing the search and identification of the bar code and acquiring the information of the bar code and the coordinates of the center position of the bar code. Fig. 6 is a schematic diagram of the result of the detection system identifying the center hole, the first circle, the guide hole and the bar code information of the carrier tape reel to be detected by using the template file. The detection system combines the coordinates of the center position of the guide hole and the coordinates of the center position of the bar code to obtain a direction vector
According to
The angle theta of the carrier tape reel is calculated by the value of the included angle with the positive direction of the X axis2By comparison of theta1And theta2If the difference is within the error range (i.e. | θ)1-θ2If | < epsilon, epsilon is an error value set according to actual precision requirements), the angle information is detected correctly, and the average value of the two is taken as the final angle information of the carrier tape reel to be detected. Otherwise, the angle acquisition fails, and the gross error can be eliminated through multiple detection according to the actual peripheral equipment and the working precision requirementOptimizing in the same way, and finally obtaining the angle and the bar code information of the carrier tape reel to be tested.
The selection of the two positioning circles is not fixed, for example, a small hole at the edge of the carrier tape reel can replace a guide hole to be used as one positioning circle, and the angle of the carrier tape reel can be calculated by combining the center position coordinates of a circle or a bar code.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of illustration of the disclosure and are not intended to limit the scope of the disclosure. Other variations or modifications may occur to those skilled in the art, based on the foregoing disclosure, and are still within the scope of the present disclosure.
Claims (6)
1. The utility model provides a detection system of discernment carrier band reel angle and bar code information which characterized in that, includes treater, storage device and image acquisition device, image acquisition device is used for gathering the image of the carrier band reel that awaits measuring, the treater carries out following procedure step:
s1, reading the image, judging whether a template file exists in the storage device, if the template file is not established, automatically entering a modeling process by the detection system, and if the template file exists, entering the step S2;
s2, reading a template file, positioning a first circle and a central hole area in the image, deducting the central hole area in the first circle area, and determining the residual area as a search area of the template;
s3, in the search area, matching a guide hole in the image with the first circle by using the template, and converting the angle of the carrier tape reel to be tested through the center position coordinates of the guide hole and the first circle;
s4, calculating the center position coordinates of the bar codes and identifying bar code information according to the position relation between the bar codes on the carrier tape reel to be tested and the guide holes and the first circle;
s5, verifying the angle information of the to-be-tested carrier tape reel obtained in the step S3 according to the center position coordinates of the guide hole and the center position coordinates of the bar code;
s6, selecting to finish or detect again according to the verification result, and determining the final angle and bar code information of the carrier tape reel to be detected;
the first circle is used for calibrating a reference center of the carrier tape reel, and the central hole and the guide hole are both in the area of the first circle.
2. The inspection system of claim 1, wherein the modeling process of step S1 includes:
a, establishing a template of the guide hole;
b, establishing a template of the first circle;
c, storing all the template information in the detection directory of the storage device.
3. The detecting system according to claim 1 or 2, wherein the angle of the carrier tape reel in step S3 is obtained by converting an angle between a line connecting the centers of the guide hole and the first circle and a positive direction of the X-axis.
4. The detection system according to any one of claims 1-2, wherein the verification method of step S5 is: calculating the angle of the carrier tape reel to be tested by using the center position coordinates of the guide hole and the center position coordinates of the bar code, comparing the angle with the angle in the step S3, and verifying whether the difference value of the angle and the angle is within the error range.
5. The detection system according to claim 4, wherein the end condition of step S6 is: the verification result is within the error range.
6. A method of identifying carrier tape reel angle and barcode information using the detection system of any one of claims 1-5, comprising the steps of:
s1, collecting and reading the image of the carrier tape reel to be tested, judging whether a template file exists in the storage device, if the template file is not established, automatically entering a modeling process by the detection system, and if the template file exists, entering the step S2;
s2, reading a template file, positioning a first circle and a central hole area in the image, deducting the central hole area in the first circle area, and determining the residual area as a search area of the template;
s3, matching a guide hole and the first circle in the image by using a template in the search area, and converting the angle of the carrier tape reel to be tested through the center position coordinates of the guide hole and the first circle;
s4, calculating the center position coordinates of the bar codes and identifying bar code information according to the position relation between the bar codes on the carrier tape reel to be tested and the guide holes and the first circle;
s5, verifying the angle information of the to-be-tested carrier tape reel obtained in the step S3 according to the center position coordinates of the guide hole and the center position coordinates of the bar code;
and S6, selecting to finish or detect again according to the verification result, and determining the final angle and bar code information of the carrier tape reel to be detected.
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| CN201711174435.8A CN107818582B (en) | 2017-11-22 | 2017-11-22 | Detection system and method for full-automatically identifying carrier tape reel angle and bar code information |
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| CN201711174435.8A CN107818582B (en) | 2017-11-22 | 2017-11-22 | Detection system and method for full-automatically identifying carrier tape reel angle and bar code information |
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| JP4337760B2 (en) * | 2005-03-29 | 2009-09-30 | セイコーエプソン株式会社 | Printing / processing system, printing apparatus, processing apparatus, printing / processing apparatus, printing / processing system control method and program |
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| US5515600A (en) * | 1993-04-14 | 1996-05-14 | Kabushiki Kaisha Toshiba | Parts mounter and cartridge structure |
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