CN202652399U - Receiving system using a video cable to transmit video signals - Google Patents
Receiving system using a video cable to transmit video signals Download PDFInfo
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- CN202652399U CN202652399U CN2012202873013U CN201220287301U CN202652399U CN 202652399 U CN202652399 U CN 202652399U CN 2012202873013 U CN2012202873013 U CN 2012202873013U CN 201220287301 U CN201220287301 U CN 201220287301U CN 202652399 U CN202652399 U CN 202652399U
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Abstract
A receiving system using a video cable to transmit video signals relates to the signal transmission technology field. The system is composed of a transmitter arranged on a camera end, a receiver connected with the transmitter through a video cable, and a control holder connected with the transmitter. The system is characterized in that composite signals emitted by the transmitter are input by the video cable through a received composite input terminal, the composite signals are divided into eight paths of camera video signals by a duplex signal separator, the eight paths of camera video signals are respectively connected with corresponding 1-8 monitors or hard disk video recorders through radio frequency-to-video and video output terminals, and a 485 signal of the control holder is connected with a receiver input end through a control keyboard output terminal. Through a frequency division multiplexing mode, one video cable is adopted to realize eight paths of video signals and one path of reversal data, all data are transmitted in real time, images are high-definition and free of time delay, and the system is very suitable to be used in new projects or reconstruction projects.
Description
Technical field
The utility model relates to the signal transmission technology field, is specifically related to the system that accepts of a vision cable transmission video signal of a kind of usefulness.
Background technology
Along with the progress of science and technology and the raising of people's awareness of safety, now a lot of residential quarters, factories and miness, schools etc. all are equiped with supervisory control system, the position of supervising device and quantity are according to the residential quarter, factories and miness, the area of school etc. and actual conditions and decide, and be provided with the control room at the property management center, all supervising devices all carry out connecting communication with the control room, the signal that monitors is sent to terminal equipment in the control room, operating personnel according to circumstances send control signal by the control room to all or indivedual supervising device simultaneously, thereby form an information network, become the residential quarter, factories and miness, the supervisory control system of school etc.
In order to realize the communication transfer between supervising device and the control room, following several implementation is arranged at present:
(1) between control room and each supervising device all by twisted pair line connection, yet, use twisted-pair feeder to carry out communication, that the signal that at first need is transmitted is encoded, transfer to the other side after, decode again, just can normally read, also namely between control room and each supervising device, a cover coding/decoding apparatus need be set all, not only cause system huge, and cost is high, cost of manufacture is high, and since on the twisted-pair feeder signal transmitting attenuation more serious, therefore and be not suitable for the telecommunication transmission;
(2) be connected by video coaxial cable respectively between control room and each supervising device, although saved like this coding/decoding apparatus, yet still owing between control room and each supervising device, need configure respectively a video coaxial cable, and cause the high of cost of manufacture;
(3) another transmission means is to adopt popular now optical fiber, optical fiber is fast owing to transmission speed, capacity is large, reliability is high is widely used, yet, because the difficult access device that increases in the centre of optical fiber, so that in a single day supervisory control system is finished, change with regard to being difficult for again, cause access property poor, the scope of application is little.
Therefore, China Patent No. is 200910024528, and a kind of common cable video transmission system is provided, and it is with the splitter of each distributor in the system within same vision cable connects machine room; China Patent No. is 200610031915, a kind of N-ISDN closed-circuit monitoring transmission system is disclosed, system's intermediate frequency modulator is connected distributor by a coaxial cable, two-way amplifier is arranged in the coaxial cable path, distributor is connected with the monitoring client integration of equipments successively with the all-channel demodulator, and the coaxial cable monitoring client also connects the monitoring client integration of equipments through data terminal controller; Also having China Patent No. is 200920137705, discloses a kind of co-cable transmission system for monitoring, also is to carry out the transmission of signal by a radio frequency coaxial-cable;
Although above-mentioned patent has solved the problem with a radio frequency line transmitting multi-path video signal, they have common defects, are exactly
1. must adopt radio frequency line, like this, when the original video supervisory control system is point-to-point when connecting by vision cable, when needing dilatation to 2 road to 5 tunnel video signal transmission, if use " co-cable transmission system " and " Integrated Service Digital Network transmission system ", radio frequency line of cloth again just, this is large or indoor fitted up engineered for difficulty of construction, still is not desirable solution;
2. each video camera place must arrange transmitter and distributor, and machine room arranges splitter;
3. the output of the input of reflector and demodulator does not have inevitable corresponding relation, need to arrange and debug during practical operation, could determine one by one corresponding relation;
4. lack reverse video channel, can't see the display effect of rear end the commissioning staff of front end.
The utility model content
Technical problem to be solved in the utility model is to improve that a kind of cost is low, and resource consumption is few, the system that accepts of a vision cable transmission video signal of usefulness of easy construction.
Technical problem to be solved in the utility model realizes by the following technical solutions:
The system that accepts with a vision cable transmission video signal, reached the receiver that is connected with transmitter by vision cable by the transmitter that is installed in the video camera end, and the control The Cloud Terrace that is connected with transmitter forms, it is characterized in that: the compound input terminal input of composite signal by receiving that described vision cable sends transmitter, through the duplex signaling separator composite signal is separated into 8 road camera video signals, 8 road camera video signals turn video and video output terminal through radio frequency respectively and receive corresponding 1-8 monitor or DVR, 485 signals of described control The Cloud Terrace by the control output end sub-connection to the receiver input.
Described composite signal is separated into 8 road camera video signals through three grades of signals.
The working power of described receiver is DC12V.
The beneficial effects of the utility model are: the utility model is by the frequency division multiplex mode, realization realizes 8 tunnel vision signals and 1 road reverse data at a vision cable, all data are real-time Transmission, and the image high definition is highly suitable in new construction or the improvement project and uses without time-delay.
Description of drawings
Fig. 1 is the utility model total system principle schematic;
Fig. 2 is that the utility model is accepted the system principle schematic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Such as Fig. 1, shown in Figure 2, the system that accepts with a vision cable transmission video signal, reached the receiver that is connected with transmitter by vision cable by the transmitter that is installed in the video camera end, and the control The Cloud Terrace that is connected with transmitter forms, the compound input terminal input of composite signal by receiving that vision cable sends transmitter, through the duplex signaling separator composite signal is separated into 8 road camera video signals, 8 road camera video signals turn video through radio frequency respectively and video output terminal is received corresponding 1-8 monitor or DVR, 485 signals of control The Cloud Terrace are connected to the receiver input by the supervisory keyboard lead-out terminal, composite signal is separated into 8 road camera video signals through three grades of signals, the working power of receiver is DC12V, and wherein the vision cable employing is no longer than the vision cable of 400 meters SYV75-5.
Above demonstration and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. with the system that accepts of a vision cable transmission video signal, reached the receiver that is connected with transmitter by vision cable by the transmitter that is installed in the video camera end, and the control The Cloud Terrace that is connected with transmitter forms, it is characterized in that: the compound input terminal input of composite signal by receiving that described vision cable sends transmitter, through the duplex signaling separator composite signal is separated into 8 road camera video signals, 8 road camera video signals turn video through radio frequency respectively and video output terminal is received corresponding 1-8 monitor or DVR, and 485 signals of described control The Cloud Terrace are connected to the receiver input by the supervisory keyboard lead-out terminal.
2. the system that accepts of a vision cable transmission video signal of usefulness according to claim 1, it is characterized in that: described composite signal is separated into 8 road camera video signals through three grades of signals.
3. the system that accepts of a vision cable transmission video signal of usefulness according to claim 1, it is characterized in that: the working power of described receiver is DC12V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202873013U CN202652399U (en) | 2012-06-18 | 2012-06-18 | Receiving system using a video cable to transmit video signals |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202873013U CN202652399U (en) | 2012-06-18 | 2012-06-18 | Receiving system using a video cable to transmit video signals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202652399U true CN202652399U (en) | 2013-01-02 |
Family
ID=47421421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202873013U Expired - Fee Related CN202652399U (en) | 2012-06-18 | 2012-06-18 | Receiving system using a video cable to transmit video signals |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202652399U (en) |
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2012
- 2012-06-18 CN CN2012202873013U patent/CN202652399U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130102 Termination date: 20150618 |
|
| EXPY | Termination of patent right or utility model |