CN103312985A - Diffraction-preventing web camera - Google Patents
Diffraction-preventing web camera Download PDFInfo
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- CN103312985A CN103312985A CN2013102196464A CN201310219646A CN103312985A CN 103312985 A CN103312985 A CN 103312985A CN 2013102196464 A CN2013102196464 A CN 2013102196464A CN 201310219646 A CN201310219646 A CN 201310219646A CN 103312985 A CN103312985 A CN 103312985A
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Abstract
The invention discloses a diffraction-preventing web camera which comprises a master control circuit, a storage, an automatic diaphragm drive circuit, an automatic focal distance drive circuit, an automatic zoom drive circuit, an image sensor, an Ethernet power supply module, a clock circuit and a watchdog circuit. The storage, the automatic diaphragm drive circuit, the automatic focal distance drive circuit, the automatic zoom drive circuit, the image sensor, the Ethernet power supply module, the clock circuit and the watchdog circuit are connected with the master control circuit. The image sensor is provided with a lens on the outside. A diffraction-preventing optical filter is disposed between the lens and the image sensor. The Ethernet power supply module is connected with a network interface circuit. The diffraction-preventing web camera is capable of preventing diffraction from affecting image acquisition, high in image resolution, and highly practical.
Description
Technical field
The present invention relates to a kind of web camera, relate in particular a kind of anti-diffraction web camera.
Background technology
Web camera is a kind of video camera of new generation that produces in conjunction with traditional cameras and network technology, and it can reach the earth other end by network with image, and the viewer of far-end need not use any professional software.Present web camera is at the diffraction phenomena in IMAQ time, and its image has some apertures, causes not fogging clearly, can have influence on shooting effect, so that IMAQ can not normally carry out.
Summary of the invention
The invention provides a kind of anti-diffraction web camera, solved in the past the web camera image and be subject to diffraction and disturb and cause the unsharp problem of IMAQ.
For solving above-mentioned technical problem, the present invention is by the following technical solutions: anti-diffraction web camera, comprise governor circuit and the memory that is connected with governor circuit, auto iris drive circuit, automatic focal length drive circuit, autozoom drive circuit, imageing sensor, Power over Ethernet module, clock circuit and watchdog circuit, described imageing sensor outside is provided with camera lens, be provided with anti-diffraction filter between camera lens and the imageing sensor, described Power over Ethernet module also is connected with network interface circuit.Power over Ethernet module (being the POE module) can provide 12V or 5V voltage to governor circuit by network interface circuit, so that web camera can be powered by network interface; Anti-diffraction filter has anti-diffraction and filter action, video camera can be prevented diffraction optical filtering processing to light by anti-diffraction filter when IMAQ, thereby it is present to eliminate optical diffraction, realizes the normal collection of image, but Effective Raise IMAQ definition is practical.
Described governor circuit comprises digital signal processor and ARM9 series processors.Digital signal processor (being the DSP microprocessor) has the characteristics of powerful data-handling capacity and the high speed of service, the ARM9 series processors has area characteristics little, low in energy consumption, governor circuit can reach very high data processing function by digital signal processor and ARM9 series processors, operation is efficient, can greatly improve the disposal ability of web camera.
It also comprises the WIFI transmission circuit that is connected with governor circuit.WIFI(Wireless Fidelity) transmission circuit can be realized the WIFI function of web camera, be used for can not carrying out that data wire is connected with the external world and situation that the image that causes can't be carried at video camera, the image of assurance camera acquisition can transmit timely.
Described digital signal processor adopts TMS320C6x series digit signal processor.TMS320C6x series digit signal processor provides low-down cost and power consumption, has very high Digital Signal Processing reliability and fail safe, has also reduced cost when improving digital signal processing capability.
Described memory adopts EEPROM.EEPROM is EEPROM (Electrically Erasable Programmable Read Only Memo), and EEPROM data after outage can not lost, and can protect greatly the data of video camera not to be lost.
Described Power over Ethernet module comprises the POE chip of the IEEE802.3af of TI company standard.The POE chip structure of TI company (being Texas Instrument) is small and exquisite, stable performance, the Power over Ethernet module adopts the POE chip of the TI IEEE802.3af of company standard can reduce greatly the video camera volume, improves overall performance, can prolong greatly the useful life of video camera.
Compared with prior art, the invention has the beneficial effects as follows: the web camera of this anti-diffraction of the present invention's design, can effectively prevent optical diffraction to the impact of IMAQ, image definition is high, and is practical.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing.
Embodiment
Anti-diffraction web camera as shown in Figure 1, comprise governor circuit and the memory that is connected with governor circuit, auto iris drive circuit, automatic focal length drive circuit, autozoom drive circuit, imageing sensor, Power over Ethernet module, clock circuit and watchdog circuit, described imageing sensor outside is provided with camera lens, be provided with anti-diffraction filter between camera lens and the imageing sensor, described Power over Ethernet module also is connected with network interface circuit.
It also comprises the WIFI transmission circuit that is connected with governor circuit.
Described governor circuit comprises digital signal processor and ARM9 series processors.
Described digital signal processor adopts TMS320C6x series digit signal processor
Described memory adopts EEPROM.
Described Power over Ethernet module comprises the POE chip of the IEEE802.3af of TI company standard.
Thereby the present invention eliminates light diffraction by add the diffraction filter of setting up defences between camera lens and imageing sensor, has avoided IMAQ aperture to occur and cause not fogging clear problem, has improved image definition, and practicality strengthens; Power over Ethernet module of the present invention (being the POE module) can provide 12V or 5V voltage to governor circuit by network interface circuit simultaneously, so that web camera can be powered by network interface; Also realized the WIFI function of web camera by adding the WIFI transmission circuit, so that web camera can not adopt data-interface to carry out image data transmission, practicality greatly increases.
Be as mentioned above embodiments of the invention.The present invention is not limited to above-mentioned execution mode, and anyone should learn the structural change of making under enlightenment of the present invention, and every have identical or close technical scheme with the present invention, all falls within protection scope of the present invention.
Claims (6)
1. prevent the diffraction web camera, it is characterized in that: comprise governor circuit and the memory that is connected with governor circuit, auto iris drive circuit, automatic focal length drive circuit, autozoom drive circuit, imageing sensor, Power over Ethernet module, clock circuit and watchdog circuit, described imageing sensor outside is provided with camera lens, be provided with anti-diffraction filter between camera lens and the imageing sensor, described Power over Ethernet module also is connected with network interface circuit.
2. anti-diffraction web camera according to claim 1, it is characterized in that: it also comprises the WIFI transmission circuit that is connected with governor circuit.
3. anti-diffraction web camera according to claim 1, it is characterized in that: described governor circuit comprises digital signal processor and ARM9 series processors.
4. anti-diffraction web camera according to claim 2 is characterized in that: described digital signal processor employing TMS320C6x series digit signal processor.
5. anti-diffraction web camera according to claim 1 is characterized in that: described memory employing EEPROM.
6. anti-diffraction web camera according to claim 1, it is characterized in that: described Power over Ethernet module comprises the POE chip of the IEEE802.3af of TI company standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102196464A CN103312985A (en) | 2013-06-05 | 2013-06-05 | Diffraction-preventing web camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102196464A CN103312985A (en) | 2013-06-05 | 2013-06-05 | Diffraction-preventing web camera |
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| Publication Number | Publication Date |
|---|---|
| CN103312985A true CN103312985A (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102196464A Pending CN103312985A (en) | 2013-06-05 | 2013-06-05 | Diffraction-preventing web camera |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070407A (en) * | 1990-05-11 | 1991-12-03 | Wheeler Ernest E | Filter changing mechanism for a video camera |
| CN101178469A (en) * | 2006-11-06 | 2008-05-14 | 富士能株式会社 | Lens |
| CN101511006A (en) * | 2009-03-12 | 2009-08-19 | 深圳市深视音电子技术有限公司 | Method for monitoring network audio and video, and network hard disk videocorder using the method |
| CN201623763U (en) * | 2009-11-17 | 2010-11-03 | 深圳市中瀛鑫科技发展有限公司 | High-definition network camera based on H.264 compression |
| CN203327126U (en) * | 2013-06-05 | 2013-12-04 | 四川艾普视达数码科技有限公司 | Anti-diffraction network camera |
-
2013
- 2013-06-05 CN CN2013102196464A patent/CN103312985A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5070407A (en) * | 1990-05-11 | 1991-12-03 | Wheeler Ernest E | Filter changing mechanism for a video camera |
| CN101178469A (en) * | 2006-11-06 | 2008-05-14 | 富士能株式会社 | Lens |
| CN101511006A (en) * | 2009-03-12 | 2009-08-19 | 深圳市深视音电子技术有限公司 | Method for monitoring network audio and video, and network hard disk videocorder using the method |
| CN201623763U (en) * | 2009-11-17 | 2010-11-03 | 深圳市中瀛鑫科技发展有限公司 | High-definition network camera based on H.264 compression |
| CN203327126U (en) * | 2013-06-05 | 2013-12-04 | 四川艾普视达数码科技有限公司 | Anti-diffraction network camera |
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Application publication date: 20130918 |