CN1874424A - Method and device for collecting image in large size for industrial products based on line array of CCD - Google Patents
Method and device for collecting image in large size for industrial products based on line array of CCD Download PDFInfo
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- CN1874424A CN1874424A CN200610085546.7A CN200610085546A CN1874424A CN 1874424 A CN1874424 A CN 1874424A CN 200610085546 A CN200610085546 A CN 200610085546A CN 1874424 A CN1874424 A CN 1874424A
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Abstract
The apparatus comprises the camera composed of the black or color linear CCD chip integration board (including A/D converter, RAM, PLD, I/O port and USB port), optical system (lens and light source), data collecting card, computer, light barrier board having tunable margin and glare shade. The camera is located at one side of manufactured products, and the manufactured products are exposed through a direction-tunable light source, and then the reflected light is coupled into the CCD sensing surface through the lens. The components in the integration board complete the A/D conversion, image processing and transmission. Through the image collecting card the images are transmitted to the computer to implement the saving of consecutive image. It can be used for field supervision, the PLD can make pre-process for the defect in collected image and send alarm signals. The consecutive image saved in the computer can provide a reference for the product classification.
Description
Technical field
The present invention relates to a kind of method and apparatus that utilizes line array CCD (CCD Charge Coupled Device) collecting image in large size for industrial products, belong to technical field of computer vision.
Background technology
Need detect automatically the surface of industrial products in many industry spot, by analyzing behind the image of gathering industrial products, thereby the production of guide product, as classification, grade, warning etc.The size breadth of some industrial products is bigger, as the steel plate band of steel rolling, the textile of printing and dyeing, the printed matter of printing and the rotary cut venner band of timber etc., more than reached at the 3000mm that its book size has.At present, the identification of industrial products defective also relies on manually and carries out in a lot of fields, the bottleneck that has caused product automation to produce like this, and simultaneously artificial accuracy of identification is lower, and working strength of workers is very big.Some industrial products is gathered the resolution of defective on the product and the pixel of CCD chip as required, adopted the camera of a plurality of area array CCDs or CMOS chip to realize the product IMAQ of industry spot by modes such as network connections, but, when image processing, the multiple image of gathering is spliced and there are many problems in the aspects such as synchronism of image real-time Transmission, may make image after splicing and combining can not accurately reflect the actual conditions of industrial products, simultaneously, the equipment investment of system is bigger.Therefore when the image of the industrial products of gathering large format, adopt the camera of line array CCD chip to carry out images acquired and can one-time continuous finish collection view picture industrial products image, thereby improve the detection effect of the automation of industrial products large-scale production, promote the lifting of the production level of enterprise.Design one cover utilizes the device of the camera collecting image in large size for industrial products of black and white or colored thread array CCD chip, can overcome owing to the artificial on-the-spot unfavorable factor that produces that detects, and enhances productivity, and reduces production costs.
Summary of the invention
When solving in the industrial production manual detection industrial products, particularly rely on for the detection of the industrial products of some large formats manually carry out classification, grade, when monitor possible since the problem of aspects such as artificial visual fatigue, stress, cause classification, inaccurate, defective omission grades.Based on the problems referred to above, the present invention proposes method and the corresponding device thereof of utilizing black and white or colored thread array CCD chip camera collecting image in large size for industrial products, can overcome because artificial on-the-spot detection the and issuable unfavorable factor is enhanced productivity reduces production costs.Adopt line array CCD to gather the method for large size for industrial products, can improve the detection effect of the automation of industrial products large-scale production, promote the lifting of the production level of enterprise.Thinking of the present invention is: adopt up-to-date many pixels black and white or colored thread array CCD chip (to comprise the A/D conversion by circuit board, memory RAM, programmable logic device, I/O mouth and USB2.0 interface etc.) and camera lens etc. form camera, place the quilt of industrial products to gather a side in camera, by the irradiation of light source to industrial products, make by collecting part and obtain enough illumination, reverberation sees through camera lens and the imaging of product is coupled on the photosurface of line array CCD, each assembly on the circuit board is finished and is comprised the A/D conversion, work such as image preliminary treatment and transmission, make the image information real-time Transmission to computer by capture card, realization is to the storage of product consecutive image, and can carry out on-site supervision, or by the programmable logic device internal program to the defective preliminary treatment in the images acquired after, send alarm signal.The collection of product consecutive image and transmission are stored in image information in the computer can be for follow-up classification to product, grading provides foundation.
Solving the technical scheme that its technical problem adopts is: the method for gathering large size for industrial products based on line array CCD has proposed to utilize line array CCD to form camera as sensor devices, realizes the IMAQ to large size for industrial products.The composition of camera comprises black and white or colored thread array CCD chip, circuit board (comprising A/D conversion, memory RAM, programmable logic device, I/O mouth and USB2.0 interface etc.) and camera lens etc., camera is rack-mount, place industrial products to need by a side of images acquired, camera sees through the image of the gap collection industrial products of adjustable distance shadow shield.Utilize light shield that camera, adjustable distance shadow shield, light source and quilt are gathered the partially enclosed in the environment of a shading of product, purpose is to prevent the interference of extraneous other light to CCD, and the adjustable distance shadow shield also can cover reverberation on the non-product collecting part to the influence of CCD simultaneously.The light source that is placed in the below of shadow shield shines industrial products, and the projecting direction of light can be regulated, to guarantee that product is by the light intensity of collecting part.Reverberation is by the gap of shadow shield, seeing through camera lens is coupled to the imaging of product on the photosurface of line array CCD, each assembly on the circuit board is finished work such as comprising A/D conversion, image preliminary treatment and transmission, make image information transfer to computer by capture card, realization is to the storage of product consecutive image, and can carry out on-site supervision, or by the programmable logic device internal program to the defective preliminary treatment in the images acquired after, send alarm signal.The collection of product consecutive image and transmission are stored in image information in the computer can be for follow-up classification to product, grading provides foundation.
The present invention proposes the method and apparatus of gathering large size for industrial products based on line array CCD, utilize the image of the camera collection large size for industrial products of many pixels line array CCD chip, following advantage is arranged:
1. owing to adopt linear array CCD camera, can once gather complete and continuous image, imaging precision height to large size for industrial products.
2. the image of Cai Jiing can be monitored and store in real time, is convenient to the image information of industrial products is carried out subsequent treatment.
3. in camera, use programmable logic device and can realize preliminary treatment by programming to images acquired, can Realtime Alerts at typical defect; Camera applications to the less demanding field of image processing the time, be can be used as the embedded system of image processing.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the example structure figure that camera is formed among the present invention.
Embodiment
Concrete execution mode:
Provide an embodiment preferably of the present invention below in conjunction with Fig. 1, Fig. 2, gather certain industrial products, its breadth is 2500mm, in order to architectural feature of the present invention, technical performance and functional characteristics to be described, rather than is used for limiting scope of the present invention.
As Fig. 1, in the present embodiment, the selection of the line array CCD in the camera 1 can be represented the unit of a resolution by 2 pixels, is 1mm (promptly being gathered the minimum defect size on the product) as resolution, and the breadth of product is 2500mm, can select the line array CCD chip of 5000 above pixels for use, present embodiment is selected the TCD2557D colored thread array CCD chip of Toshiba (TOSHIBA) for use, and its effective pixel is 5340, and pixel dimension is 7 μ m, overall dimension is 52.6 * 9.65mm, is output as R, G, B three tunnel.The line array CCD chip is integrated on the circuit board that comprises A/D conversion, memory RAM, field programmable gate array (FPGA FieldProgrammable Gate Array), I/O mouth and USB2.0 interface etc., as Fig. 2.The wide-angle lens that camera lens 2 is selected for use.The correction of camera can adopt the graph paper to having the grid that intersects in length and breadth to scan, and proofreaies and correct and adjusts obtaining the distortion in images degree.Camera is rack-mount, adjust camera in position and vertical with test product.Light source 5 can be selected fluorescent lamp, laser line light source or LED (Light EmittingDiode) line source of no frequency dispersion etc. as required for use, the line source of selecting for use a plurality of LEDs to form in the present embodiment, it is placed in the below of adjustable shadow shield, the projecting direction of light can be regulated, to guarantee that product is by the light intensity of collecting part.The gap e of adjustable distance shadow shield 3 can regulate with the relation between the translational speed of the sample frequency of camera and industrial products.The reverberation that shines on the product passes the shadow shield slit, seeing through camera lens is coupled to the imaging of product on the photosurface of line array CCD, each assembly on the circuit board is finished work such as comprising A/D conversion, image preliminary treatment and transmission, make the image information real-time Transmission to computer 7 by capture card, realization is to the storage of product consecutive image, and can carry out on-site supervision, or after realizing the image by the line array CCD collection comprised the preliminary treatment of binaryzation etc. by the program in the on-site programmable gate array FPGA of residing in, send alarm signal.The industrial products 6 that camera, adjustable distance shadow shield, light source and quilt are gathered etc. all are closed in light shield 5 environment, to prevent the interference to CCD of extraneous other light.The image of gathering the mesh coordinate paper of corresponding breadth by camera is adopted in the correction of camera, to observe by the distortion degree of images acquired, as the correction foundation of camera.
Claims (6)
1, based on the method and apparatus of line array CCD collecting image in large size for industrial products, it is characterized in that: camera, optical system (camera lens, light source etc.) and data collecting card, computer, adjustable distance shadow shield and the light shield etc. that adopt black and white or colored thread array CCD chip to form by circuit board (comprising A/D conversion, memory RAM, programmable logic device, I/O mouth and USB interface etc.) are formed the device of gathering large size for industrial products.
2, the method and apparatus based on line array CCD collection large size for industrial products according to claim 1 is characterized in that adopting the sensor devices of line array CCD chip as the camera images acquired.
3, the method and apparatus of gathering large size for industrial products based on line array CCD according to claim 1, it is characterized in that adopting the control assembly of programmable logic device as camera, realization is to the control of line array CCD chip, A/D conversion, memory, I/O mouth and USB interface etc., and can be by residing in the preliminary treatment that program in the programmable logic device realizes the image by the line array CCD collection is comprised binaryzation etc.
4, the method and apparatus of gathering large size for industrial products based on line array CCD according to claim 1, the spacing that it is characterized in that shadow shield is adjustable, adapt to the frequency acquisition of line array CCD and the relation of product translational speed on the one hand, reduce of the interference of the stray reflected of non-pickup area on the other hand line array CCD.
5, the method and apparatus of gathering large size for industrial products based on line array CCD according to claim 1, it is characterized in that light source can adopt no frequency dispersion fluorescent lamp, laser line light source or LED line source, be installed in the below of adjustable distance shadow shield, can determine the quantity (or length) of light source according to the breadth size of being gathered product, the projecting direction of light can be regulated, to guarantee that product is by the light intensity of collecting part.
6, the method and apparatus of gathering large size for industrial products based on line array CCD according to claim 1, the image of gathering the mesh coordinate paper of corresponding breadth by camera is adopted in the correction that it is characterized in that camera, to observe by the distortion degree of images acquired, as the correction foundation of camera.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100855467A CN100493145C (en) | 2006-06-22 | 2006-06-22 | Device for collecting image in large size for industrial products based on line array of CCD |
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2006100855467A CN100493145C (en) | 2006-06-22 | 2006-06-22 | Device for collecting image in large size for industrial products based on line array of CCD |
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| CN1874424A true CN1874424A (en) | 2006-12-06 |
| CN100493145C CN100493145C (en) | 2009-05-27 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475812A (en) * | 2013-07-30 | 2013-12-25 | 宁波迪吉特电子科技发展有限公司 | Camera array |
| CN105806816A (en) * | 2016-03-15 | 2016-07-27 | 合肥工业大学 | Detecting device and method for multichannel up-conversion luminescence |
| CN106027867A (en) * | 2016-07-07 | 2016-10-12 | 江门市江海区奥创电子科技有限公司 | Industrial linear CCD camera |
| CN106680151A (en) * | 2015-11-05 | 2017-05-17 | 无锡鼎立光测科技有限公司 | Solar battery oxidation membrane hydrophilic angle determinator |
| CN108259697A (en) * | 2018-02-06 | 2018-07-06 | 中国科学院西安光学精密机械研究所 | High resolution image scanning device |
| CN111504459A (en) * | 2020-04-09 | 2020-08-07 | 广东科达洁能股份有限公司 | Detection device for ceramic tile grading and color separation |
| CN114047123A (en) * | 2021-10-09 | 2022-02-15 | 江苏芯亿达电子科技有限公司 | Method and system for detecting production defects of integrated board |
-
2006
- 2006-06-22 CN CNB2006100855467A patent/CN100493145C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475812A (en) * | 2013-07-30 | 2013-12-25 | 宁波迪吉特电子科技发展有限公司 | Camera array |
| CN103475812B (en) * | 2013-07-30 | 2016-05-25 | 宁波迪吉特电子科技发展有限公司 | A kind of video camera array |
| CN106680151A (en) * | 2015-11-05 | 2017-05-17 | 无锡鼎立光测科技有限公司 | Solar battery oxidation membrane hydrophilic angle determinator |
| CN105806816A (en) * | 2016-03-15 | 2016-07-27 | 合肥工业大学 | Detecting device and method for multichannel up-conversion luminescence |
| CN106027867A (en) * | 2016-07-07 | 2016-10-12 | 江门市江海区奥创电子科技有限公司 | Industrial linear CCD camera |
| CN108259697A (en) * | 2018-02-06 | 2018-07-06 | 中国科学院西安光学精密机械研究所 | High resolution image scanning device |
| CN111504459A (en) * | 2020-04-09 | 2020-08-07 | 广东科达洁能股份有限公司 | Detection device for ceramic tile grading and color separation |
| CN111504459B (en) * | 2020-04-09 | 2021-10-08 | 广东科达洁能股份有限公司 | Detection device for ceramic tile grading and color separation |
| CN114047123A (en) * | 2021-10-09 | 2022-02-15 | 江苏芯亿达电子科技有限公司 | Method and system for detecting production defects of integrated board |
| CN114047123B (en) * | 2021-10-09 | 2024-04-09 | 无锡芯羿达微电子有限公司 | Method and system for detecting production defects of integrated board |
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| CN100493145C (en) | 2009-05-27 |
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