CN200973133Y - Outer synchronous wire array CCD drive control system - Google Patents
Outer synchronous wire array CCD drive control system Download PDFInfo
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- CN200973133Y CN200973133Y CNU2006201258755U CN200620125875U CN200973133Y CN 200973133 Y CN200973133 Y CN 200973133Y CN U2006201258755 U CNU2006201258755 U CN U2006201258755U CN 200620125875 U CN200620125875 U CN 200620125875U CN 200973133 Y CN200973133 Y CN 200973133Y
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Abstract
The utility model discloses an external synchronous line CCD driving control device, which comprises a high-velocity SCM, a high-velocity SCM and a communication interface chip connected with an external speed measuring unit, wherein the high-velocity SCM uses the electrical level commutation chip to connect with the CCD chip; the CCD chip is connected with the high-velocity device that outputs the pixels to the external processing system; the high-velocity SCM is connected with the electrical level commutation chip that outputs the pixel synchronous signals and the horizontal synchronous signals to the external processing system. The utility model has a reasonable structure and the CCD driving pulse realizes the external synchrony, with a good working performance.
Description
Technical field:
The utility model relates to a kind of control device, is a kind of CCD driving control device.
Background technology:
CCD has simple in structure, characteristics such as precision is high, speed is fast, stable performance as a kind of electrooptical device, is widely used in image sensing and non-contact measurement field at present.The CCD application system comprises that pictorial data obtains (hardware) and data processing algorithm (software) two aspects, along with the development of computer technology and image processing techniques, this aspect two people all obtained some achievements in research.Comparatively speaking, more be at present research, and at hardware aspect at software algorithm, the difference according to used CCD system has following two big class schemes usually:
One, general integrated system: adopt general line array CCD camera and high-speed data acquisition card, directly all Pixel Information of image are passed to PC.Obviously this class scheme need not to research and develop hardware system, and product development cycle can shorten greatly, whole attentivenesss can be concentrated on the realization aspect of software algorithm, and system reliability is also better in addition.But this class scheme also has open defect: 1) often only need partial images information in the actual detected, when detecting as fabric defects, only need fault information uploading PC is got final product, fault amount of information proportion is very little under the normal condition, and the CCD camera will transmit all information, and obviously data volume is very big, the rapidity and the real-time that will certainly the reduction system detect, simultaneously also increased the host computer data processing load greatly, Processing Algorithm has also been had higher requirement; 2) for the detection of motion workpiece, require CCD driving pulse frequency and measured object speed to keep synchronously, otherwise can cause " omission " or " crossing inspection ", and camera system can't change owing to internal circuit configuration, program circuit, moreover do not provide interface with outside velocity-measuring system yet, want to keep synchronously, can only between camera system and velocity-measuring system, increase both interface treatment systems, otherwise can only utilize the synchronizing signal control CCD in the camera system to drive sequential, thereby be difficult to keep synchronously with measured object speed; 3) universal products such as CCD camera, capture card are not to design at the particular system characteristics specially, therefore exist the waste or the deficiency of resource inevitably, thereby influence the detection system performance; 4) linear array CCD camera and supporting high-speed data acquisition card cost an arm and a leg, if be applied on the detection system of commercialization, certainly will greatly increase product cost, have weakened competition capability.
Two, dedicated hardware systems: with controllers such as single-chip microcomputer, DSP is that core makes up hardware system, realizes the ccd image sensing, information is obtained and transmit control.This type of scheme comes down to develop voluntarily linear array CCD camera and high-speed data acquisition card, and is just the opposite with the pluses and minuses of general integrated system scheme: cheap, with strong points; The pictorial data of gathering can transmit host computer again through preliminary treatment earlier, improved the rapidity and the real-time of detection system, also reduced the host computer data processing load; Owing to be development system voluntarily, the stationary problem of CCD driving pulse frequency and measured object speed can be solved in addition.Certainly dedicated hardware systems relates to CCD and drives links such as sequential, Image sensing, data acquisition, transmission control, and the sequential of CCD driving pulse requires very strictness, so development difficulty increases the construction cycle lengthening.
In the dedicated hardware systems, the generation that drives sequential is a key technology, CCD manufacturer is numerous, model is different, its production method that drives sequential is also varied, generally there is digital circuit to drive, EPROM drives, microprocessor driven, four kinds of driving methods such as programmable logic device, preceding two kinds are commonly referred to " hardware driving method ", can produce the higher driving pulse of frequency, but the sequential that produces immobilizes, and is not suitable for the occasion that needs to adjust in real time driving frequency, and back two kinds are called " software-driven method " again, because in the CCD application system, generally all to use microprocessor, so, then need not increase hardware if adopt the microprocessor driven method, the simplest on circuit structure, system cost is also minimum, but in the past because microprocessor speed such as single-chip microcomputer are low, it is low to exist driving frequency usually, the wasting of resources is many, shortcomings such as sequential is inhomogeneous, along with development of computer, can be overcome by adopting high speed microprocessor at present.
Summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and the CCD driving pulse is realized outer synchronous a kind of outer line array CCD driving control device synchronously.
Technical solution of the present utility model is:
A kind of outer line array CCD driving control device synchronously, it is characterized in that: comprise high-speed microprocessor, high-speed microprocessor with connect the test the speed communication interface chip of unit of outside and be connected, high-speed microprocessor is connected with the CCD chip through level transferring chip, the CCD chip is connected with high speed amplifier to outside treatment system output pixel point voltage, and high-speed microprocessor is connected with level transferring chip to outside treatment system output pixel point synchronizing signal and line synchronizing signal.
High-speed microprocessor adopts C805 1F300 high-speed microprocessor.The CCD chip adopts the TCD1206 chip.
The utility model is rational in infrastructure, and has following advantage:
1, synchronously, promptly adjusts CCD driving pulse frequency in real time outside the CCD driving pulse is realized, keep strict synchronism, improved certainty of measurement with measured object speed according to the speed of outside measured object;
2, adopt the novel high speed microprocessor, CCD is provided driving pulse, shortcoming such as overcome that the driving frequency that CCD microprocessor driven mode exists is low, system resource waste, sequential are inhomogeneous at interval;
3, can online adjustment driving frequency, can provide pixel synchronizing signal and line synchronizing signal to the outside, be convenient to realize information exchange with the external treatment system.
4, the system configuration advantages of simple, with low cost, volume is little, easy for installation.
Description of drawings:
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing is the configuration diagram of an embodiment of the utility model.
Embodiment:
A kind of outer line array CCD driving control device synchronously, comprise C8051F300 high-speed microprocessor 1, C8051F300 high-speed microprocessor 1 with connect the test the speed RS-232 communication interface chip 5 (model: MAX3223) be connected of unit 7 of outside, the C8051F300 high-speed microprocessor is through SN74LVC4245 level transferring chip 2 and CCD chip 3 (model: TCD1206) be connected, CCD chip 3 is with (model: AD8031) be connected, the C8051F300 high-speed microprocessor is connected with level transferring chip 6 (model SN74LVC4245) to outside treatment system 8 output pixel point synchronizing signals and line synchronizing signal to the high speed amplifier 4 of outside treatment system 8 output pixel point voltages.
Operation principle of the present utility model is:
Driving control system by RS-232 interface read measured object speed (by the outside test the speed the unit detect draw), adjust the frequency that CCD drives sequential according to this velocity amplitude, and provide CCD driving pulse through the CCD chip, CCD output differential voltage is handled through high speed amplifier 4, form pixel voltage U o and output to the outside, simultaneously provide pixel synchronizing signal PS and line synchronizing signal FS, handle for the external treatment system to the outside.
Claims (3)
1, a kind of outer line array CCD driving control device synchronously, it is characterized in that: comprise high-speed microprocessor, high-speed microprocessor with connect the test the speed communication interface chip of unit of outside and be connected, high-speed microprocessor is connected with the CCD chip through level transferring chip, the CCD chip is connected with high speed amplifier to outside treatment system output pixel point voltage, and high-speed microprocessor is connected with level transferring chip to outside treatment system output pixel point synchronizing signal and line synchronizing signal.
2, outer line array CCD driving control device synchronously according to claim 1, it is characterized in that: high-speed microprocessor adopts the C8051F300 high-speed microprocessor.
3, outer line array CCD driving control device synchronously according to claim 1 and 2, it is characterized in that: the CCD chip adopts the TCD1206 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201258755U CN200973133Y (en) | 2006-11-27 | 2006-11-27 | Outer synchronous wire array CCD drive control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201258755U CN200973133Y (en) | 2006-11-27 | 2006-11-27 | Outer synchronous wire array CCD drive control system |
Publications (1)
| Publication Number | Publication Date |
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| CN200973133Y true CN200973133Y (en) | 2007-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2006201258755U Expired - Fee Related CN200973133Y (en) | 2006-11-27 | 2006-11-27 | Outer synchronous wire array CCD drive control system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368607A (en) * | 2011-10-27 | 2012-03-07 | 山东超越数控电子有限公司 | Power-off protection system for electronic product drop process |
| CN102572283A (en) * | 2012-01-09 | 2012-07-11 | 北京凌云光视数字图像技术有限公司 | External synchronous signal card and image collection system for linear array camera |
| CN104390897A (en) * | 2013-07-22 | 2015-03-04 | 南通大学 | Beam homogeneity improved optical system for detecting size and shape of microparticle |
| CN104458510A (en) * | 2013-07-22 | 2015-03-25 | 南通大学 | Particle size and shape detection optical system capable of improving detection accuracy |
| CN104880155A (en) * | 2015-06-05 | 2015-09-02 | 苏州市建设工程质量检测中心有限公司 | Long-distance reference laser displacement sensor and distance measurement method thereof |
-
2006
- 2006-11-27 CN CNU2006201258755U patent/CN200973133Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102368607A (en) * | 2011-10-27 | 2012-03-07 | 山东超越数控电子有限公司 | Power-off protection system for electronic product drop process |
| CN102572283A (en) * | 2012-01-09 | 2012-07-11 | 北京凌云光视数字图像技术有限公司 | External synchronous signal card and image collection system for linear array camera |
| CN104390897A (en) * | 2013-07-22 | 2015-03-04 | 南通大学 | Beam homogeneity improved optical system for detecting size and shape of microparticle |
| CN104458510A (en) * | 2013-07-22 | 2015-03-25 | 南通大学 | Particle size and shape detection optical system capable of improving detection accuracy |
| CN104880155A (en) * | 2015-06-05 | 2015-09-02 | 苏州市建设工程质量检测中心有限公司 | Long-distance reference laser displacement sensor and distance measurement method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |