CN102855682A - Image acquisition device - Google Patents
Image acquisition device Download PDFInfo
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- CN102855682A CN102855682A CN2012103259485A CN201210325948A CN102855682A CN 102855682 A CN102855682 A CN 102855682A CN 2012103259485 A CN2012103259485 A CN 2012103259485A CN 201210325948 A CN201210325948 A CN 201210325948A CN 102855682 A CN102855682 A CN 102855682A
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Abstract
The invention discloses an image acquisition device which comprises a controller, an image sensing part controlled by current, and a current source provided with a control end. The controller is connected with the image sensing part and the control end of the current source respectively, an output end of the current source is connected with a current input end of the image sensing part, and an output end of the image sensing part is connected with the controller. According to the technical scheme, the image acquisition device has the advantages that brightness stability of a light source of a non-contact image sensor is increased, structure is simple, operation speed is high, and the image acquisition device is convenient to operate and maintain.
Description
Technical field
The present invention relates to a kind of currency identification equipment, relate in particular to a kind of image collecting device that is applied to the currency identification equipment.
Background technology
The contactless imageing sensor of the general employing of present currency identification equipment on the market, the light-source brightness stability of contactless imageing sensor is controlled by power supply, existing power supply control mode can't be kept the stability of the light-source brightness of contactless imageing sensor, cause image acquisition unstable, and then have influence on the recognition accuracy of currency identification equipment.
Summary of the invention
For the problems referred to above that existing currency identification equipment exists, now provide a kind of image collecting device that is intended to improve the light-source brightness stability of contactless imageing sensor.
Concrete technical scheme is as follows:
A kind of image collecting device, wherein, comprise control device, the image sensing parts by Current Control and with the current source of control end, described control device respectively with described image sensing parts be connected the control end of current source and be connected, the output terminal of described current source is connected with the current input terminal of described image sensing parts, and the output terminal of described image sensing parts is connected with described control device.
Preferably, described image sensing parts are the contactless imageing sensor by the Current Control light source, and described contactless imageing sensor comprises the light source control mouth of accepting Current Control, and the output terminal of described current source is connected with described light source control mouth.
Preferably, described control device comprises the sequential control parts, the output terminal of described sequential control parts respectively with described image sensing parts be connected the control end of current source and be connected.
Preferably, also comprise the analog to digital conversion parts, the output terminal of described image sensing parts is connected with described control device by described analog to digital conversion parts, and described control device is connected with the control end of described analog to digital conversion parts by described sequential parts.
Preferably, comprise also mainly by circuit-formed current adjusting device that the output terminal of described current source is connected with the current output terminal of described image sensing parts by described current adjusting device.
Preferably, described current source is constant current source.
Preferably, described control device is mainly by FPGA(Programmable Gate Array field programmable gate array) form.
The beneficial effect of technique scheme is:
Improved the light-source brightness stability of contactless imageing sensor, simple in structure, operating rate is fast, convenient operation and maintenance.
Description of drawings
Fig. 1 is the logical organization synoptic diagram of the embodiment of a kind of image collecting device of the present invention.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments, but not as limiting to the invention.
As shown in Figure 1, the embodiment of a kind of image collecting device of the present invention, wherein, comprise control device, the image sensing parts by Current Control and with the current source of control end, control device is connected control end with the image sensing parts respectively and is connected with current source, the output terminal of current source is connected with the current input terminal of image sensing parts, and the output terminal of image sensing parts is connected with control device.
The principle of work of technique scheme is, the image sensing parts are sent to control device and identify in order to gather picture signal, the control device Harmonious Graph is as the work step of sensing element and current source, thereby play the effect that improves image sensing component working stability, simultaneously, can reduce the circuit setting by a control device centralized control, simplify one-piece construction.
On the technique scheme basis, further, the image sensing parts are the contactless imageing sensor by the Current Control light source, and contactless imageing sensor comprises the light source control mouth of accepting Current Control, and the output terminal of current source is connected with the light source control mouth.Wherein, control device comprises the sequential control parts, and the output terminal of sequential control parts is connected control end with the image sensing parts respectively and is connected with current source.Control device can be by the coordination of sequential control parts realization to image sensing parts and current source.
On the technique scheme basis, further, also comprise the analog to digital conversion parts, the output terminal of image sensing parts is connected with control device by the analog to digital conversion parts, and control device is connected with the control end of analog to digital conversion parts by the sequential parts.The analog to digital conversion parts become digital signal to be sent to control device the analog signal conversion of the output of image sensing parts, so that control device is further processed signal.
On the technique scheme basis, further, comprise also that mainly by circuit-formed current adjusting device, the output terminal of current source is connected by the current output terminal of current adjusting device with the image sensing parts.Can realize control to current source output by the device in the Circuit tuning.
On the technique scheme basis, further, current source can be constant current source, and control device can mainly be formed by FPGA.
The above only is preferred embodiment of the present invention; be not so restriction embodiments of the present invention and protection domain; to those skilled in the art; should recognize that being equal to that all utilizations instructions of the present invention and diagramatic content done replace and the resulting scheme of apparent variation, all should be included in protection scope of the present invention.
Claims (7)
1. image collecting device, it is characterized in that, comprise control device, the image sensing parts by Current Control and with the current source of control end, described control device respectively with described image sensing parts be connected the control end of current source and be connected, the output terminal of described current source is connected with the current input terminal of described image sensing parts, and the output terminal of described image sensing parts is connected with described control device.
2. image collecting device as claimed in claim 1, it is characterized in that, described image sensing parts are the contactless imageing sensor by the Current Control light source, described contactless imageing sensor comprises the light source control mouth of accepting Current Control, and the output terminal of described current source is connected with described light source control mouth.
3. this machine of image as claimed in claim 1 is characterized in that described control device comprises the sequential control parts, the output terminal of described sequential control parts respectively with described image sensing parts be connected the control end of current source and be connected.
4. image collecting device as claimed in claim 1, it is characterized in that, also comprise the analog to digital conversion parts, the output terminal of described image sensing parts is connected with described control device by described analog to digital conversion parts, and described control device is connected with the control end of described analog to digital conversion parts by described sequential parts.
5. image collecting device as claimed in claim 1 is characterized in that, comprises also that mainly by circuit-formed current adjusting device, the output terminal of described current source is connected with the current output terminal of described image sensing parts by described current adjusting device.
6. such as image collecting device as described in arbitrary among the claim 1-5, it is characterized in that described current source is constant current source.
7. such as image collecting device as described in arbitrary among the claim 1-5, it is characterized in that described control device is mainly formed by FPGA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103259485A CN102855682A (en) | 2012-09-06 | 2012-09-06 | Image acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103259485A CN102855682A (en) | 2012-09-06 | 2012-09-06 | Image acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102855682A true CN102855682A (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103259485A Pending CN102855682A (en) | 2012-09-06 | 2012-09-06 | Image acquisition device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008052368A (en) * | 2006-08-22 | 2008-03-06 | Aruze Corp | Paper money processor |
| JP2009157504A (en) * | 2007-12-25 | 2009-07-16 | Toshiba Corp | Paper sheet discrimination device |
| CN102142166A (en) * | 2011-04-13 | 2011-08-03 | 张文峰 | Driving circuit of color changing ink recognition device in currency count machine |
| CN102324133A (en) * | 2011-08-10 | 2012-01-18 | 深圳市怡化电脑有限公司 | Contact image sensor module for banknote recognition |
| CN202134053U (en) * | 2011-05-27 | 2012-02-01 | 尤新革 | CIS interface and image processing circuit used for multispectral bill image analysis |
| CN202854943U (en) * | 2012-09-06 | 2013-04-03 | 上海古鳌电子科技股份有限公司 | Image acquisition apparatus |
-
2012
- 2012-09-06 CN CN2012103259485A patent/CN102855682A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008052368A (en) * | 2006-08-22 | 2008-03-06 | Aruze Corp | Paper money processor |
| JP2009157504A (en) * | 2007-12-25 | 2009-07-16 | Toshiba Corp | Paper sheet discrimination device |
| CN102142166A (en) * | 2011-04-13 | 2011-08-03 | 张文峰 | Driving circuit of color changing ink recognition device in currency count machine |
| CN202134053U (en) * | 2011-05-27 | 2012-02-01 | 尤新革 | CIS interface and image processing circuit used for multispectral bill image analysis |
| CN102324133A (en) * | 2011-08-10 | 2012-01-18 | 深圳市怡化电脑有限公司 | Contact image sensor module for banknote recognition |
| CN202854943U (en) * | 2012-09-06 | 2013-04-03 | 上海古鳌电子科技股份有限公司 | Image acquisition apparatus |
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Application publication date: 20130102 |