CN201515465U - Visual sense sensor - Google Patents
Visual sense sensor Download PDFInfo
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- CN201515465U CN201515465U CN2009202360701U CN200920236070U CN201515465U CN 201515465 U CN201515465 U CN 201515465U CN 2009202360701 U CN2009202360701 U CN 2009202360701U CN 200920236070 U CN200920236070 U CN 200920236070U CN 201515465 U CN201515465 U CN 201515465U
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Abstract
A visual sense sensor comprises a lens, an image gathering unit, an image processing unit and a communication unit, wherein the output end of the lens is connected with the input end of the image gathering unit, the output end of the image gathering unit is connected with the input end of the signal output unit, and the general-purpose input/output end of the signal output unit is connected with the communication unit. The visual sense sensor has the advantages that the visual sense sensor solidifies a mature machine visual sense algorism, and users can achieve the function of existed/none judgment, surface/shortcoming detection of workpieces, size measurement, edge extraction, Blob, grey scale histogram, OCR/OCV, code reading and the like. The visual sense sensor is easy to learn, use, maintain and mount, and has the characteristics of simplifying, modularization and production, and a reliable and effective machine visual system can be formed in short term.
Description
Technical field
The utility model belongs to the video acquisition technical field, specifically is a kind of vision sensor.
Background technology
Vision sensor (smart camera) as the machine vision important component part is at the early-stage at home, and the market overwhelming majority is occupied by foreign enterprises such as COGNEX, Feith, companies such as DALSA, Banner.Present machine vision applications system mainly is a kind of vision system based on personal computer (PC), generally is made of light source, optical lens, CCD or CMOS camera, image pick-up card, image processing software and a PC.Big, the complex structure of machine vision applications system dimension based on PC, the construction cycle is longer, but can reach desirable precision and speed, can realize comparatively complicated systemic-function.
Summary of the invention
Big in order to overcome the existing volume of vision sensor, the structuring complexity is used inconvenience, problems such as working service cost height.The utility model proposes a kind of vision sensor (claiming smart camera Smart Camera again), collection, processing and the communication function of image are integrated in the single camera, thus provide have multi-functional, modularization, high reliability, easy-operating Vision Builder for Automated Inspection.Be extensive use of with industrial automation and detect fields such as bar-code identification.Concrete technical scheme is as follows:
A kind of vision sensor comprises camera lens, image acquisition units, graphics processing unit and communication unit; The output of described camera lens connects the input of image acquisition units, and the output of image acquisition units connects the input of signal output unit, and the general input of signal output unit/go out end connects communication unit.The image information that described camera lens collects is converted into the signal of telecommunication in image acquisition units, this signal of telecommunication is sent into graphics processing unit after the A/D conversion.This graphics processing unit is loaded with image processing software, assisting down of software, handles and obtains corresponding data information, and this data message is transferred to external equipment through communication unit.Graphics processing unit also receives the instruction or the out of Memory of external equipment by communication unit.
Also comprise demonstration/control appliance, the video signal input terminal of demonstration/control appliance connects the output of graphics processing unit, and the control signal output ends of demonstration/control appliance connects the input of graphics processing unit.
Described camera lens is the CMOS camera, also is provided with LED annular lamp around the camera lens.Described image acquisition units is a cmos image sensor.Graphics processing unit is DSP module and memory module, and this memory module comprises FLASH and SDRAM, and FLASH comes program and some data of storage system operation.SDRAM is mainly used to the data of image of storage of collected and the result of image processing.Communication unit is a network communication device, and communicator comprises Ethernet, serial port and USB module.
The beneficial effects of the utility model are, this vision sensor has solidified ripe machine vision algorithm, the user need not programming, just can realize/not have the functions such as surface/defect inspection, dimensional measurement, edge extracting, Blob, grey level histogram, OCR/OCV, bar code reading of judgement, workpiece.Make that vision sensor is easily learned, easy-to-use, easy care, easily install, have the characteristics of simplification, module piece and commercialization, can build reliable and effective Vision Builder for Automated Inspection in a short time,
Description of drawings
Fig. 1 is this vision sensor theory diagram.
Fig. 2 is this vision sensor hardware principle block diagram.
Fig. 3 .1 is this vision sensor profile rearview.
Fig. 3 .2 is this vision sensor profile front view.
Fig. 3 .3 looks this vision sensor side sectional view.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
A kind of vision sensor comprises camera lens, image acquisition units, graphics processing unit and communication unit; The output of described camera lens connects the input of image acquisition units, and the output of image acquisition units connects the input of signal output unit, and the general input of signal output unit/go out end connects communication unit.The image information that described camera lens collects is converted into the signal of telecommunication in image acquisition units, this signal of telecommunication is sent into graphics processing unit after the A/D conversion.This graphics processing unit is loaded with image processing software (often see in the prior art owing to software, be not further limited at this), assisting down of software, handles and obtains corresponding data information, and this data message is transferred to external equipment through communication unit.Graphics processing unit also receives the instruction or the out of Memory of external equipment by communication unit.
This vision sensor has solidified ripe machine vision algorithm, and the user need not programming, just can realize/not have functions such as judgement, surface/defect inspection, dimensional measurement, edge extracting, Blob, grey level histogram, OCR/OCV, bar code reading.
As Fig. 2, the cmos image sensor OV7640 that described image acquisition units adopts CMOS camera+OminiVision company to produce, it is a integrated color chips of one 640 * 480 (300,000 pixel) image array, can be operated in colored and two kinds of patterns of black and white, be 30 frames/s when lining by line scan.Graphics processing unit adopts the TMS320VC5509A in the TI digital signal processor C55x of the company series DSP, and maximum clock can reach 200MHz, and there are two MAC and two ALU in inside, makes the fastest operand of DSP reach 400MIPS.It also has 32 program data bus simultaneously, article 5,16 data/address bus and 6 24 s' program and data address bus, this parallel multiple bus architecture makes VC5509A finish the reading of a 32bit program code, reading of 3 16bit data and writing of 2 16bit data in one-period.
Image capture module: acquisition module mainly is made up of cmos image sensor OV7660, FIFO (CY7C4291V), CPLD (EPM240) and DSP.Send the IMAQ order by DSP,, gather FIFO, and DSP advances the SDRAM of memory module by DMA images acquired in the FIFO by CPLD control.
Processing module: be mainly DSP (TMS320VC5509A) chip, finish the core control and the processing capacity of image.
Memory module: mainly contain FLASH and SDRAM and form.Because 5509A inside does not have FLASH, so must extend out program and some data that FLASH comes the storage system operation.SDRAM is mainly used to the data of image of storage of collected and the result of image processing.
Communication module has three communication interfaces: Ethernet, serial ports, USB.Ethernet module W5100 and main DSP adopt the mode of interrupting to communicate.
Display module: adopting special-purpose module, can be LCD MODULE.
As Fig. 2, in the gatherer process of image, DSP gives the CPLD control signal by the GPIO pin, again by the write sequential of CPLD control cmos image sensor to FIFO.FLASH and SDRAM are the storage of program code and the storage of view data.The communication aspect mainly is provided with dual mode: a, TCP/IP communication (using hardware Ethernet card CP200); B, USB communication use DSP5509A to comprise USB interface, meet the USB2.0 agreement.Ethernet is applied to the industry spot communication, and figure emphasis is relatively set in the USB communication during for single-set operation, to improve the real-time that detects.Liquid crystal and keyboard can selection function be set.This transducer also can carry out Long-distance Control by industrial bus.
As Fig. 3, LED annular lamp 1 provides the illumination of shooting.CMOS camera module 2 (comprising camera lens, CMOS camera, OV7660) is finished the collection and the digital translation of image.Circuit board 3 is finished the real-time collection and the image processing of picture signal, signal transmission, storage, its detailed structure of input/output interface.Shell 4 plays protection, fixing, beauty function.Liquid crystal module 5 (comprise keyboard, 2 inches colour liquid crystal display devices, 2 inches (TS8015M-V2) are comprising chip for driving) is used for demonstration and detects figure, man-machine interaction.
This vision sensor is used CPLD, FIFO, DSP is the high-speed data acquisition and the image processing system of core, guarantees the real-time that article detect, accuracy.The on-the-spot man-machine interactive system that shows, the quality of assurance IMAQ, the menu demonstration is provided with multiple function selecting.
Claims (7)
1. a vision sensor is characterized in that comprising camera lens, image acquisition units, graphics processing unit and communication unit; The output of described camera lens connects the input of image acquisition units, and the output of image acquisition units connects the input of signal output unit, and the general input of signal output unit/go out end connects communication unit.
2. vision sensor according to claim 1, it is characterized in that also comprising demonstration/control appliance, the video signal input terminal of demonstration/control appliance connects the output of graphics processing unit, and the control signal output ends of demonstration/control appliance connects the input of graphics processing unit.
3. vision sensor according to claim 1 and 2 is characterized in that described camera lens is the CMOS camera; Described image acquisition units is a cmos image sensor;
4. vision sensor according to claim 3 is characterized in that also being provided with LED annular lamp around the described camera lens.
5. vision sensor according to claim 1 and 2 is characterized in that described graphics processing unit is DSP module and memory module.
6. vision sensor according to claim 5 is characterized in that described memory module comprises FLASH and SDRAM.
7. vision sensor according to claim 1 and 2 is characterized in that described communication unit is a network communication device, and communicator comprises Ethernet, serial port and USB module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202360701U CN201515465U (en) | 2009-09-23 | 2009-09-23 | Visual sense sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202360701U CN201515465U (en) | 2009-09-23 | 2009-09-23 | Visual sense sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201515465U true CN201515465U (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202360701U Expired - Fee Related CN201515465U (en) | 2009-09-23 | 2009-09-23 | Visual sense sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955644A (en) * | 2018-07-12 | 2018-12-07 | 董中浩 | A kind of programmable machine sighting device |
-
2009
- 2009-09-23 CN CN2009202360701U patent/CN201515465U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108955644A (en) * | 2018-07-12 | 2018-12-07 | 董中浩 | A kind of programmable machine sighting device |
| CN108955644B (en) * | 2018-07-12 | 2020-11-06 | 端黎明 | Programmable machine vision device |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20120923 |