CN201662537U - Open visual detection device - Google Patents
Open visual detection device Download PDFInfo
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- CN201662537U CN201662537U CN2009202518700U CN200920251870U CN201662537U CN 201662537 U CN201662537 U CN 201662537U CN 2009202518700 U CN2009202518700 U CN 2009202518700U CN 200920251870 U CN200920251870 U CN 200920251870U CN 201662537 U CN201662537 U CN 201662537U
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Abstract
The utility model discloses an open visual detection device comprising an optical imaging system, an embedded hardware processing platform, an industrial computer or a touch screen, a feature matching database and an actuating mechanism, wherein the optical imaging system comprises an intelligent lighting device and a CCD camera, and the embedded hardware processing platform comprises an image acquisition control interface, an input/output control interface, an image processing algorithm module and a human-computer interaction interface. The detecting system provided by the utility model can contain detection matching images of various products, and by virtue of the wide open structure, a user can conduct secondary development on the device according to specific detection requirements. Moreover, the optical imaging system, the image processing algorithm module, the input/output control interface and the human-computer interaction interface all adopt the modular design, and thereby capable of being combined according to real demands, and expanding the application field of the visual detection device.
Description
Technical field
The utility model belongs to a kind of vision inspection apparatus, is specifically related to a kind of general open-type visual pick-up unit that On-line Product detects that can be used for.
Background technology
Early stage product quality detects the general manual detection that adopts, the cost height, and production efficiency is low, is difficult to meet the demand of large-scale industrial production.After the eighties in 20th century, because the characteristics such as rapidity, repeatability, intellectuality and scene property of machine vision, detect industry occasions such as classification in parts quality testing, industrial and agricultural products, obtained concrete application based on the various on-line detecting systems of vision detection technology.These on-line detecting systems adopt more buys ready-made CCD camera, adopts the mode of image acquisition integrated circuit board processing industry control computer, and host computer is developed different process softwares more voluntarily.
In order accurately to detect the difference of object, these detection systems adopt hardware handles platform at a high speed on the one hand, external conditions such as light source are required harsh, to obtain higher image in different resolution, adopt the Processing Algorithm of various complexity that image is handled on the other hand, algorithm often is confined to a certain certain products detection simultaneously.The hardware and software cost of these detection systems is higher, and simultaneously because the Processing Algorithm of its complexity that adopts, it is longer that image is carried out the processing time, is difficult to satisfy the demand that the modern industry production line high-speed detects in real time.
Summary of the invention
The utility model proposes in order to overcome the shortcoming that exists in the prior art, and its objective is provides a kind of open-type visual pick-up unit, to adapt to the requirement of the online detection of various industrial and agricultural products.
The technical solution of the utility model is: a kind of open-type visual pick-up unit, comprise optical imaging system, optical imaging system is made up of intelligent lighting device and ccd video camera, the intelligent lighting device comprises light source and a background board, and below chute, with the chute being respectively has two light sources and a background board before and after axis of symmetry is provided with respectively.
The output of described optical imaging system, input end signal are communicated with input, the output end signal of embedded hardware processing platform, the output of embedded hardware processing platform, input end signal are communicated with input, the output end signal of topworks with industrial computer or touch-screen, characteristic matching database and pick-up unit respectively, and described embedded hardware processing platform comprises image acquisition control interface, input and output control interface, image processing algorithm module and Man Machine Interface.
Light source adopts the multistage led light source of adjustable brightness.
The utility model one cover detection system can comprise the detection matching image of multiple product (material), owing to adopted wide-open structure, the user can require to carry out the exploitation second time according to concrete detection on this platform.Image processing software bag in the optical imaging system of the vision-based detection in the utility model, the embedded hardware processing platform, input and output control interface and Man Machine Interface have all adopted modular design, therefore can make up according to actual needs, widen the application of vision inspection apparatus.
Description of drawings:
Fig. 1 is the structured flowchart of a kind of open-type visual pick-up unit of the utility model;
Fig. 2 is the structural representation of optical imaging system of the present utility model.
Wherein:
1 optical imaging system, 2 embedded hardware processing platforms
3 industrial computers or touch-screen 4 characteristic matching databases
5 pick-up units and topworks's 6 intelligent lighting devices
7 ccd video cameras, 8 image acquisition control interfaces
9 input and output control interfaces, 10 image processing algorithm modules
11 Man Machine Interfaces, 15 feed bins
16 loaders, 17 chutes
18 light sources, 19 background boards
20 sensor chips, 21 pick-up lenss
22 nozzles
Embodiment
Below, with reference to drawings and Examples a kind of open-type visual pick-up unit of the present utility model is elaborated:
As shown in Figure 1, a kind of open-type visual pick-up unit, comprise optical imaging system 1, the output of optical imaging system 1, input end signal are communicated with input, the output end signal of embedded hardware processing platform 2, and the output of embedded hardware processing platform 2, input end signal are communicated with input, the output end signal of topworks 5 with industrial computer or touch-screen 3, characteristic matching database 4 and pick-up unit respectively.
Wherein, optical imaging system 1 is made up of intelligent lighting device 6 and ccd video camera 7.Wherein, intelligent lighting device 6 comprises light source 18 and a background board 19.Loader 16 being set below the feed bin 15, chute 17 is set below loader 16, is that two light sources 18 and a background board 19 are respectively arranged before and after axis of symmetry is provided with respectively below chute 17, with chute 17.Light source 18 uses the multistage led light source of adjustable brightness, by image capture interface 8 controls, can come one section LED illumination of automatic setting or multistage LED illumination to the demand of light intensity according to examined object, thereby regulate light-source brightness.Simultaneously can also select light sources of different colors for use according to the difference of examined object color.
Ccd video camera 7 is made up of high speed linear array CCD sensor chip 20 and pick-up lens 21, can cooperate as required to select the multiple standards camera lens for use.Intelligent lighting device 6 uses the multistage led light source of adjustable brightness, by image capture interface 8 controls, can come one section LED illumination of automatic setting or multistage LED illumination to the demand of light intensity according to examined object, thereby regulate light-source brightness.Simultaneously can also select light sources of different colors for use according to the difference of examined object color.
Optical imaging system 1 is responsible for the light signal of material is converted to electric signal, for the successive image collection is prepared.Optics pick-up lens 21 is used for entering the material optical imagery in the sight line under the irradiation of light source 21.The light that sensor chip 20 detection optical pick-up lenss are assembled, and detect its intensity, gather the image information of testee, the object of different colours produces the signal of varying strength.A sensor chip 20 is respectively established in front and back, and purpose is the double-edged color of material that is used to detect, and guarantees the comprehensive of detection.
Embedded hardware processing platform 2 comprises hardware components and software section.Wherein, core processor system and the relevant peripheral interface mainly formed of hardware components by on-site programmable gate array FPGA (Field Programmable Gate Array), digital signal processor DSP (Digital Signal Processor), synchronous dynamic random access memory SDRAM (Synchronous Dynamic Random Access Memory).Peripheral interface comprises image acquisition control interface 8, input and output control interface 9 and Man Machine Interface 11.Software section mainly is made up of with software programs such as relevant system's control, communication, IO interface image processing algorithm module 10.
Wherein, image acquisition control interface 8 is connected with optical imaging system 1 by special-purpose input/output signal connecting line, send the brightness regulation of instruction control intelligent lighting device 6 according to the requirement of object to be detected, send pulse command notice ccd video camera 7 images acquired simultaneously, the analog image that ccd video camera 7 collects is sent into image capture interface 8 by coaxial cable.
Wherein, IO interface 9 provides analog current, dc voltage signal input interface in order to connect the external detection device, and pick-up unit is generally various sensors, and the pressure, the position signals that can be used for the outside detect; Also provide the digital signal output interface to be used to export control signal corresponding simultaneously to pick-up unit and topworks 5.
Wherein, image processing algorithm module 10 is kernel software modules of embedded hardware processing platform 2.The image that 10 pairs of image acquisition control interfaces 8 of image processing algorithm module collect is handled, and carries out image and goes background denoising, characteristic component coupling and flaw point area matched.
Wherein, Man Machine Interface 11 provides VGA, RS232/485, RJ45, the PS2 interface of standard, can connect industrial computer or touch-screen 3 and other peripherals, for the operator provides operation display interface intuitively.
Industrial computer or touch-screen 3 provide user interface intuitively for the operator, and the operator can observe the associated picture feature of object to be detected intuitively by display or touch-screen, can also conveniently set detecting pattern surveyed area condition etc. simultaneously.
Industrial computer or touch-screen 3 are connected with embedded hardware processing platform 2 by signal wire as human-computer interaction interface.During sorting, treat the corresponding matching image characteristic of sorting material, on industrial computer or touch-screen 3, show the honest material image that sub-elects according to different sorting classifying standards and the image of the defective material of correspondence with it according to existing in the characteristic matching database 4.Click different images, can determine to have selected different sorting standards.Simultaneously when sorting work, collect the image of current sorting material through optical imaging system 1 after, can on industrial computer or touch-screen 3, show in real time, be convenient to observe.Industrial computer of the present invention or touch-screen 3 can be selected color touch screen like MT8121 type or the performance classes for use.
Characteristic matching database 4 is interested feature description factors of extracting from the examined object image in advance under the mode of off-line.Be included in acceptable object under particular color light source, the certain luminance and reject the gray-scale value, RGB (red, green, blue) component gray-scale value, flaw area etc. of object.Characteristic matching database 4 generally is stored in FLASH (flash memory) or other are deposited in all media.Specifically:, determine its normal material (honest material) and characteristic information such as image of the material (defective material) that will reject, shape profile according to image that collects relevant material and concrete sorting classifying standard.The characteristic matching database 4 general prior FLASH of being stored in (flash memory) or other are deposited in all media.
Pick-up unit and topworks 5 form (not shown) by nozzle 22 and control gear, and control gear is made up of Drive and Control Circuit, compressed air system and pressure adjustment assembly etc., and nozzle 22 can be designed to the different structure form as required, as the flat structure.(describing) with reference to the hypomere in the invention
Pick-up unit can selected components according to the different of the concrete application of pick-up unit with execution machine 5.Wherein pick-up unit is generally various industrial sensors, can be used for that pressure, the position signals of outside detected when detection system worked.Topworks can be a pneumatic actuator, also can be other mechanisms such as industrial machine human arm.Wherein pneumatic actuator is formed (not shown) by nozzle 22 and control gear, and control gear is made up of Drive and Control Circuit, compressed air system and pressure adjustment assembly etc., and nozzle 22 can be designed to the different structure form as required, as the flat structure.
Unacceptable product storehouse 23 and certified products storehouse 24 are set respectively below chute 17.
The course of work of the present utility model is undertaken by 10 controls of image processing algorithm module, and specific procedure may further comprise the steps:
(i) according to the difference of examined object color etc., for intelligent lighting device 6 is selected suitable light source for use, because differences such as examined object color, need the features such as gray scale of concern widely different under the irradiation of Different Light color, for outstanding interested feature, light sources of different colors be need select for use, when having the object of green, yellow color, differentiation green and yellow characteristic that green light source can be clearly selected for use as detection.
(ii) by industrial computer or touch-screen 3 or the suitable testing conditions of other display setting, rule of thumb or with methods such as eye-observations, set out the energy active zone and tell the characteristic condition of inspected object, as set G (green) component gray-scale value and the object flaw point area value that detects in RGB (red, green, the blueness) image, the testing conditions that configures is stored in the characteristic matching database 4.
(iii) images acquired
By image acquisition control interface 8 control optical imaging systems 1 beginning images acquired, according to predefined testing conditions, adjust the brightness of intelligent lighting device automatically, make interested characteristic quantity obviously outstanding.
(iv) image goes the background denoising
Its component gray-scale value of the image that collects etc. all is to obtain under unified background and light source, and the image that 10 pairs of image acquisition control interfaces 8 of image processing algorithm module collect goes the background denoising.
(v) G (green) component gray-scale value mates
Mate collecting the G component gray-scale value of image and the value of imposing a condition in the matching characteristic database 4.If the coupling would continue next step; Otherwise will return images acquired again.
(vi) flaw point is area matched
The gray-scale value of flaw point and the normal feature gray scale of locating etc. have obvious difference on the object, when previous step G component gray-scale value meets coupling when requiring, then begin to carry out area and add up, when area meets the setting value of matching characteristic database 4, then carry out next step, otherwise restart to add up.
(vii) export matching result
According to (when the condition vi) satisfies, exporting a matching structure, and relevant signal be delivered to pick-up unit and topworks 5, and further handle by pick-up unit and topworks 5 by input and output control interface 9.
The utility model one cover detection system can comprise the detection matching image of multiple product (material), owing to adopted wide-open structure, the user can require to carry out the exploitation second time according to concrete detection on this platform.Image processing software bag in the optical imaging system of the vision-based detection in the utility model, the embedded hardware processing platform, input and output control interface and Man Machine Interface have all adopted modular design, therefore can make up according to actual needs, widen the application of vision inspection apparatus.
Claims (2)
1. open-type visual pick-up unit, comprise optical imaging system (1), optical imaging system (1) is made up of intelligent lighting device (6) and ccd video camera (7), intelligent lighting device (6) comprises a light source (18) and a background board (19), below in chute (17), with chute (17) is that two light sources (18) and a background board (19) are respectively arranged before and after axis of symmetry is provided with respectively, it is characterized in that: the output of described optical imaging system (1), the input of input end signal and embedded hardware processing platform (2), output end signal is communicated with, the output of embedded hardware processing platform (2), input end signal respectively with industrial computer or touch-screen (3), the input of characteristic matching database (4) and pick-up unit and topworks (5), output end signal is communicated with, and described embedded hardware processing platform (2) comprises image acquisition control interface (8), input and output control interface (9), image processing algorithm module (10) and Man Machine Interface (11).
2. open-type visual pick-up unit according to claim 1 is characterized in that: light source (18) adopts the multistage led light source of adjustable brightness.
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| CN2009202518700U CN201662537U (en) | 2009-12-21 | 2009-12-21 | Open visual detection device |
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| CN2009202518700U CN201662537U (en) | 2009-12-21 | 2009-12-21 | Open visual detection device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601060A (en) * | 2012-03-02 | 2012-07-25 | 华南理工大学 | System and method for automatically sorting appearances of quartz wafers |
| CN105203901A (en) * | 2015-09-10 | 2015-12-30 | 苏州威盛视信息科技有限公司 | Component short-circuit AOI method |
| CN105203548A (en) * | 2015-09-10 | 2015-12-30 | 苏州威盛视信息科技有限公司 | Control system of AOI (automatic optic inspection) detection device |
| CN105242197A (en) * | 2015-09-09 | 2016-01-13 | 苏州威盛视信息科技有限公司 | AOI (Automatic Optic Inspection) scanning defect inspection processing method |
| CN107015709A (en) * | 2017-03-24 | 2017-08-04 | 苏州佳世达电通有限公司 | Optical touch control apparatus and optical touch control method |
| CN107664611A (en) * | 2017-09-21 | 2018-02-06 | 镇江康源新材料科技有限公司 | A kind of detection means located at PVC granular material in medical use production line exit side |
| CN107843404A (en) * | 2017-11-18 | 2018-03-27 | 国网新疆电力有限公司电力科学研究院 | Low-pressure metering box IK level estimate devices |
| CN110987942A (en) * | 2019-12-04 | 2020-04-10 | 联想(北京)有限公司 | Electronic device and machine vision system |
| CN111157532A (en) * | 2020-01-03 | 2020-05-15 | 天津大学 | Visual detection device and method for scratches of mobile phone shell |
| CN114486906A (en) * | 2021-12-20 | 2022-05-13 | 江苏特创科技有限公司 | RGB LED detection system and method thereof |
-
2009
- 2009-12-21 CN CN2009202518700U patent/CN201662537U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601060A (en) * | 2012-03-02 | 2012-07-25 | 华南理工大学 | System and method for automatically sorting appearances of quartz wafers |
| CN105242197A (en) * | 2015-09-09 | 2016-01-13 | 苏州威盛视信息科技有限公司 | AOI (Automatic Optic Inspection) scanning defect inspection processing method |
| CN105203901A (en) * | 2015-09-10 | 2015-12-30 | 苏州威盛视信息科技有限公司 | Component short-circuit AOI method |
| CN105203548A (en) * | 2015-09-10 | 2015-12-30 | 苏州威盛视信息科技有限公司 | Control system of AOI (automatic optic inspection) detection device |
| CN107015709A (en) * | 2017-03-24 | 2017-08-04 | 苏州佳世达电通有限公司 | Optical touch control apparatus and optical touch control method |
| CN107664611A (en) * | 2017-09-21 | 2018-02-06 | 镇江康源新材料科技有限公司 | A kind of detection means located at PVC granular material in medical use production line exit side |
| CN107843404A (en) * | 2017-11-18 | 2018-03-27 | 国网新疆电力有限公司电力科学研究院 | Low-pressure metering box IK level estimate devices |
| CN110987942A (en) * | 2019-12-04 | 2020-04-10 | 联想(北京)有限公司 | Electronic device and machine vision system |
| CN111157532A (en) * | 2020-01-03 | 2020-05-15 | 天津大学 | Visual detection device and method for scratches of mobile phone shell |
| CN114486906A (en) * | 2021-12-20 | 2022-05-13 | 江苏特创科技有限公司 | RGB LED detection system and method thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: RESEARCH INSTITUTE OF PHYSICAL AND CHEMICAL ENGINE Free format text: FORMER OWNER: TIANJIN HUAHE TECHNOLOGY CO., LTD. Effective date: 20111216 |
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| C41 | Transfer of patent application or patent right or utility model | ||
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Effective date of registration: 20111216 Address after: The 300384 Tianjin City Huayuan Industrial Zone Development Road six No. 6 Haitai green industry base building J room 104 Patentee after: Huahe New Technology Development Company, Research Institute of Physical and Chemical Engineering of Nuclear Industry Address before: The 300384 Tianjin City Huayuan Industrial Zone Development Road six No. 6 Haitai green industry base F building 6 Room 302 Patentee before: Tianjin Huahe Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101201 Termination date: 20161221 |