CN103945172A - Audio-video monitor system based on optical fiber transmission - Google Patents
Audio-video monitor system based on optical fiber transmission Download PDFInfo
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- CN103945172A CN103945172A CN201310019920.3A CN201310019920A CN103945172A CN 103945172 A CN103945172 A CN 103945172A CN 201310019920 A CN201310019920 A CN 201310019920A CN 103945172 A CN103945172 A CN 103945172A
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Abstract
The invention relates to an audio-video monitor system based on optical fiber transmission. The audio-video monitor system comprises a front end camera, a pickup, an optical fiber transmission module, a digital video recorder and a displayer. The front end camera and the pickup are respectively connected with input ends of the optical fiber transmission module; output ends of the optical fiber transmission module are connected with the digital video recorder and the displayer; audio signals and video signals collected by the front end camera and the pickup are transmitted to the digital video recorder and the displayer through the optical fiber transmission module; the digital video recorder stores the received signals; and the displayer displays the received signals in real time. Compared with the prior art, the audio-video monitor system has the advantages of large message capacity, long transmission distance, strong anti-electromagnetic interference ability, good safety and so on.
Description
Technical field
The present invention relates to a kind of supervising device, relate in particular to a kind of audio/video monitor and control system based on Optical Fiber Transmission.
Background technology
Monitoring technique is as the requisite a kind of security service of modern society, is widely used at present, thereby plays multiple objects such as antitheft, record, traffic dispersion in places such as a lot of squares, market, station, bank or underground parkings.Traditional video monitoring system is a kind of analog video supervisory control system, and the transmission of the signal that camera acquisition obtains mainly adopts analog coaxial cable, twisted-pair feeder etc., and such transmission has some shortcomings part:
(1) transmission range is short, adopts SYV75-9 to transmit farthest and is no more than 1000 meters;
(2) signal transmission is single, and video, audio frequency, control signal will be divided not synteny transmission;
(3) adopt analog signal transmission, the interference and the confidentiality that are subject to external environment are poor;
(4) line construction and maintenance cost cable are higher than optical cable.
Summary of the invention
Object of the present invention be exactly provide in order to overcome the defect that above-mentioned prior art exists that a kind of message capacity is large, long transmission distance, anti-electromagnetic interference capability is strong and fail safe the is good audio/video monitor and control system based on Optical Fiber Transmission.
Object of the present invention can be achieved through the following technical solutions:
A kind of audio/video monitor and control system based on Optical Fiber Transmission, it is characterized in that, comprise front-end camera, pick-up, optical fiber transmission module, digital hard disc video recorder and display, described front-end camera, pick-up are connected with the input of optical fiber transmission module respectively, and the output of described optical fiber transmission module is connected with digital hard disc video recorder and display respectively;
The audio-video signal of described front-end camera and pick-up collection is transferred to respectively digital hard disc video recorder and display by optical fiber transmission module, described digital hard disc video recorder is stored the signal receiving, and display shows the signal of reception in real time simultaneously.
Optical fiber transmission module comprises the electrooptic conversion module, optical transmitter, optical fiber, optical receiver and the photoelectric conversion module that connect successively, described electrooptic conversion module is connected with front-end camera, pick-up respectively, and described photoelectric conversion module is connected with digital hard disc video recorder and display respectively;
Described electrooptic conversion module converts the audio frequency and video analog signal of front-end camera and pick-up collection to light signal, and optical transmitter through Optical Fiber Transmission, then after being received by optical receiver, is reduced into analog signal by photoelectric conversion module by light signal.
Compared with prior art, the present invention has the following advantages:
1, the present invention adopts Optical Fiber Transmission video, voice and control signal, transmission frequency bandwidth, and message capacity is large, decays little, non-relay, long transmission distance, anti-electromagnetic interference capability is strong, without crosstalking, strong security;
2, optical fiber is compared with copper cable, and volume is little, and fail safe is good, can not produce spark;
3, the raw material of optical fiber are mainly silicon dioxide, and aboundresources and cost are low.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
As shown in Figure 1, a kind of audio/video monitor and control system based on Optical Fiber Transmission, comprise front-end camera 1, pick-up 2, optical fiber transmission module, digital hard disc video recorder 5 and display 6, described front-end camera 1, pick-up 2 are connected with the input of optical fiber transmission module respectively, and the output of described optical fiber transmission module is connected with digital hard disc video recorder 5 and display 6 respectively; The audio-video signal that described front-end camera 1 and pick-up 2 gather is transferred to respectively digital hard disc video recorder 5 and display 6 by optical fiber transmission module, described digital hard disc video recorder 5 is stored the signal receiving, and display 6 shows the signal receiving in real time simultaneously.
Optical fiber transmission module comprises the electrooptic conversion module 31, optical transmitter 41, optical fiber 7, optical receiver 42 and the photoelectric conversion module 32 that connect successively, described electrooptic conversion module 31 is connected with front-end camera 1, pick-up 2 respectively, and described photoelectric conversion module 32 is connected with digital hard disc video recorder 5 and display 6 respectively; The audio frequency and video analog signal that described electrooptic conversion module 31 gathers front-end camera 1 and pick-up 2 converts light signal to, optical transmitter 41 transmits light signal through optical fiber 7, after being received by optical receiver 42 again, be reduced into analog signal by photoelectric conversion module 32.
Claims (2)
1. the audio/video monitor and control system based on Optical Fiber Transmission, it is characterized in that, comprise front-end camera, pick-up, optical fiber transmission module, digital hard disc video recorder and display, described front-end camera, pick-up are connected with the input of optical fiber transmission module respectively, and the output of described optical fiber transmission module is connected with digital hard disc video recorder and display respectively;
The audio-video signal of described front-end camera and pick-up collection is transferred to respectively digital hard disc video recorder and display by optical fiber transmission module, described digital hard disc video recorder is stored the signal receiving, and display shows the signal of reception in real time simultaneously.
2. a kind of audio/video monitor and control system based on Optical Fiber Transmission according to claim 1, it is characterized in that, optical fiber transmission module comprises the electrooptic conversion module, optical transmitter, optical fiber, optical receiver and the photoelectric conversion module that connect successively, described electrooptic conversion module is connected with front-end camera, pick-up respectively, and described photoelectric conversion module is connected with digital hard disc video recorder and display respectively;
Described electrooptic conversion module converts the audio frequency and video analog signal of front-end camera and pick-up collection to light signal, and optical transmitter through Optical Fiber Transmission, then after being received by optical receiver, is reduced into analog signal by photoelectric conversion module by light signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019920.3A CN103945172A (en) | 2013-01-18 | 2013-01-18 | Audio-video monitor system based on optical fiber transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019920.3A CN103945172A (en) | 2013-01-18 | 2013-01-18 | Audio-video monitor system based on optical fiber transmission |
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| Publication Number | Publication Date |
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| CN103945172A true CN103945172A (en) | 2014-07-23 |
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| CN201310019920.3A Pending CN103945172A (en) | 2013-01-18 | 2013-01-18 | Audio-video monitor system based on optical fiber transmission |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340222A (en) * | 2016-10-18 | 2017-01-18 | 浙江神州量子网络科技有限公司 | Teaching demonstration apparatus combining quantum cryptography communication with fiber eavesdropping |
| WO2017124913A1 (en) * | 2016-01-21 | 2017-07-27 | 广州市诚臻电子科技有限公司 | Camera, remote video speech system and applications thereof |
| CN108419060A (en) * | 2018-04-28 | 2018-08-17 | 安徽唐兴机械装备有限公司 | A kind of push pipe electrical-mechanical system based on optical-fibre communications |
| US10923798B2 (en) | 2016-01-04 | 2021-02-16 | Guangzhou Changen Electronic Technology Co., Ltd | Antenna support and antenna position control system |
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| CN202268048U (en) * | 2011-08-09 | 2012-06-06 | 毛振义 | Security monitoring system |
| CN202524512U (en) * | 2012-05-11 | 2012-11-07 | 山东鑫华泰电子科技有限公司 | Eight-path pure-video digital video optical transceiver |
| CN202602635U (en) * | 2012-04-17 | 2012-12-12 | 中山市卓梅尼控制技术有限公司 | Multimedia monitoring optical-fiber communication system |
| CN203072084U (en) * | 2013-01-18 | 2013-07-17 | 上海共联通信信息发展有限公司 | Audio and video monitoring device based on optical fiber transmission |
-
2013
- 2013-01-18 CN CN201310019920.3A patent/CN103945172A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202268048U (en) * | 2011-08-09 | 2012-06-06 | 毛振义 | Security monitoring system |
| CN202602635U (en) * | 2012-04-17 | 2012-12-12 | 中山市卓梅尼控制技术有限公司 | Multimedia monitoring optical-fiber communication system |
| CN202524512U (en) * | 2012-05-11 | 2012-11-07 | 山东鑫华泰电子科技有限公司 | Eight-path pure-video digital video optical transceiver |
| CN203072084U (en) * | 2013-01-18 | 2013-07-17 | 上海共联通信信息发展有限公司 | Audio and video monitoring device based on optical fiber transmission |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10923798B2 (en) | 2016-01-04 | 2021-02-16 | Guangzhou Changen Electronic Technology Co., Ltd | Antenna support and antenna position control system |
| WO2017124913A1 (en) * | 2016-01-21 | 2017-07-27 | 广州市诚臻电子科技有限公司 | Camera, remote video speech system and applications thereof |
| US10893174B2 (en) | 2016-01-21 | 2021-01-12 | Guangzhou Changen Electronic Technology Co., Ltd | Camera, remote video speech system and applications thereof |
| CN106340222A (en) * | 2016-10-18 | 2017-01-18 | 浙江神州量子网络科技有限公司 | Teaching demonstration apparatus combining quantum cryptography communication with fiber eavesdropping |
| CN108419060A (en) * | 2018-04-28 | 2018-08-17 | 安徽唐兴机械装备有限公司 | A kind of push pipe electrical-mechanical system based on optical-fibre communications |
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Application publication date: 20140723 |