CN202918412U - Signal transmission system - Google Patents
Signal transmission system Download PDFInfo
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- CN202918412U CN202918412U CN 201220583225 CN201220583225U CN202918412U CN 202918412 U CN202918412 U CN 202918412U CN 201220583225 CN201220583225 CN 201220583225 CN 201220583225 U CN201220583225 U CN 201220583225U CN 202918412 U CN202918412 U CN 202918412U
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Abstract
The utility model is suitable for the technical field of signal transmission, provides a signal transmission system. The signal transmission system includes: a network/power transmission device set which comprises at least one network/power transmission device connected with a camera and used for integrating network signals and/or analog audio and video signals output from the camera into a cable signal; a network fiber transmission relay device set connected with the network/power transmission device set which comprises at least one network fiber transmission relay device connected with a network fiber exchanger through the network/power transmission device set and a fiber cable and used for converting the cable signal into a fiber signal and then transmitting the fiber signal to the network fiber exchanger through the fiber cable. The signal transmission system integrates the cable transmission network and the fiber transmission network and conquers the defect of the prior art that the transmission distance is short. During the transmission process, the middle distance and long distance are combined and the application need in engineering is satisfied.
Description
Technical field
The utility model belongs to the signal transmission technology field, relates in particular to a kind of signal transmission system that is integrated with cable transmission network and optical fiber transmission network.
Background technology
Along with the development of computer technology and the raising of image processing techniques, video monitoring just more and more is widely used in the various fields such as security protection, education, government, hotel, and has brought into play important effect.In big-and-middle-sized video monitoring system, transmit simultaneously analog audio-video signal and network digital signal such as need, usually adopt many cables or twisted-pair feeder respectively transportation simulator audio-video signal and network digital signal, installation wiring is numerous and diverse, and the construction maintenance cost is high.
Be directed to this, prior art has proposed a kind of system that utilizes cable transmission analog audio-video signal and network digital signal, this system increases the code modulation decoder of a digital signal in the video camera of front end or in the front end digital communication encoder, this code modulation decoder connects the front end digital communication equipment, increase simultaneously the modulator-demodulator of a digital communication signal in the rear end, this modulator-demodulator connects the rear end digital communication equipment.Although installation wiring can be simplified by this system, only use the cable signal transmission, so that the transmission range of signal is short, can't solve the problem of signal middle and long distance transmission.
The utility model content
The purpose of this utility model is to provide a kind of signal transmission system, be intended to solve in the system of existing transportation simulator audio-video signal and network digital signal, only adopt the common cable signal transmission, transmission range is short, can't solve the problem of signal middle and long distance transmission.
The utility model is achieved in that a kind of signal transmission system, and described system comprises:
Network/power transmission device group, described network/power transmission device group comprise network/power transmission device that at least one is connected with video camera, network signal and/or the analog audio-video signal integration of described video camera output become a cable signal;
The network fiber transmission trunk device group that connects described network/power transmission device group, described network fiber transmission trunk device group comprise at least one by cable and described network/power transmission device group be connected optical fiber cable and be connected with the network fiber switch, described cable signal is converted to the network fiber transmission trunk device that is transferred to described network fiber switch behind the fiber-optic signal by described optical fiber cable.
Wherein, described network/power transmission device can comprise:
Connect described video camera by network cable, receive the Ethernet interface of the network signal of described video camera output;
Connect described Ethernet interface, described network signal is carried out the network interface circuit that data are processed;
Connect described network interface circuit, when having the multi-channel network signal, realize the network exchange circuit of multi-channel network Signal Exchange Processing;
Connect described network exchange circuit, described network signal code conversion is become the network signal change-over circuit of a coaxial signal;
Connect described network signal change-over circuit and coaxial cable, described coaxial signal is sent to the first coaxial cable interface of described network fiber transmission trunk device by described coaxial cable;
Be connected with each power circuit in the described system, the voltage transitions that will be inputted by the first coaxial cable interface by described network fiber transmission trunk device is the first power-switching circuit of described each power circuit required voltage.
At this moment, described Ethernet interface can be the RJ45 interface.
Simultaneously, described network/power transmission device can also comprise:
Be connected between described Ethernet interface and the described network exchange circuit, described network exchange circuit is passed the voltage of coming after the POE processing circuit processes, export to the Power over Ethernet circuit of described video camera by described Ethernet interface.
Simultaneously, described network fiber transmission trunk device can comprise:
Connect described network/power transmission device by coaxial cable, receive the second coaxial cable interface via the described coaxial signal of described coaxial cable transmission;
Connect described the second coaxial cable interface, described coaxial signal is carried out the network that network data processes/power delivery circuit;
Connect described network/power delivery circuit, when having the multichannel coaxial signal, the multichannel coaxial signal is converted to network signal and realizes network signal conversion and the network exchange circuit of multi-channel network Signal Exchange Processing;
Connect described network signal conversion and network exchange circuit, network signal is converted to the first fiber-optic signal change-over circuit of light signal;
Connect described the first fiber-optic signal change-over circuit and optical fiber cable, described light signal is sent to the first optical fiber interface of described network fiber switch by described optical fiber cable;
Be connected with each power circuit in the described system, external input voltage be converted to the second source change-over circuit of described each power circuit required voltage;
Be connected with the second source change-over circuit, accept the power input interface of external power source input.
Wherein, described network/power transmission device can comprise:
The transmitter that video/audio/control/power supply signal is processed and transmitted to the network cable transmission.
Wherein, described network fiber transmission trunk device can also comprise:
Connect described transmitter, to described video/audio/control/power supply signal video/audio/control of processing/power supply encoding and decoding treatment circuit of decoding;
Connect described video/audio/control/power supply encoding and decoding treatment circuit, described video/audio/control/power supply signal is converted to the second fiber-optic signal change-over circuit of fiber-optic signal;
Connect described the second fiber-optic signal change-over circuit and optical fiber cable, described fiber-optic signal is transferred to the second optical fiber interface of described network fiber switch by described optical fiber cable.
In the said system, described a plurality of network/power transmission device is connected with described network fiber transmission trunk device by point-to-point mode respectively, and perhaps described a plurality of network/power transmission device is connected with described network fiber transmission trunk device by described cable after adopting node type to connect;
Described a plurality of network fiber transmission trunk device is connected with described network fiber switch by point-to-point mode respectively, and perhaps described a plurality of network fiber transmission trunk device is connected with described network fiber switch by described optical fiber cable after adopting node type to connect.
Be integrated with cable transmission network and optical fiber transmission network in the signal transmission system that the utility model provides, with respect to the short problem of transmission range in the prior art, can realize that middle and long distance combines in transmission course, satisfy the application in the engineering.
Description of drawings
Fig. 1 is the structure chart of the signal transmission system that provides of the utility model;
Fig. 2 is among the utility model embodiment 1, the structure chart of network/power transmission device;
Fig. 3 is among the utility model embodiment 1, the structure chart of network fiber transmission trunk device;
Fig. 4 is among the utility model embodiment 2, signal transmission system structure chart;
Fig. 5 is among the utility model embodiment 2, the structure chart of network fiber transmission trunk device.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Problem for prior art exists is integrated with cable transmission network and optical fiber transmission network in the signal transmission system that the utility model provides.
Fig. 1 shows the structure of the signal transmission system that the utility model provides, and for convenience of explanation, only shows the part relevant with the utility model embodiment.
Particularly, the signal transmission system that the utility model embodiment provides comprises: network/power transmission device group 1, and it comprises network/power transmission device 11 that at least one is connected with video camera, network signal and/or the analog audio-video signal integration of video camera output become a cable signal; The network fiber transmission trunk device group 2 of interconnection network/power transmission device group 1, it comprise at least one by cable and network/power transmission device group 1 be connected optical fiber cable and be connected with the network fiber switch, cable signal is converted to the network fiber transmission trunk device 21 that is transferred to the network fiber switch behind the fiber-optic signal by optical fiber cable.
Wherein, a plurality of network/power transmission devices 11 can be connected with network fiber transmission trunk device 21 by point-to-point mode respectively, a plurality of network/power transmission devices 11 also can form topological network each other, be connected with network fiber transmission trunk device 21 by cable after adopting node type to connect, certainly, can also be the combination of these two kinds of connected modes; Similarly, a plurality of network fiber transmission trunk device 21 can be connected with the network fiber switch by point-to-point mode respectively, a plurality of network fiber transmission trunk device 21 also can form topological network each other, are connected with the network fiber switch by optical fiber cable after the employing node type connects.
Be integrated with cable transmission network and optical fiber transmission network in the signal transmission system that the utility model provides, with respect to the short problem of transmission range in the prior art, can realize that middle and long distance combines in transmission course, satisfy the application in the engineering.Cable wherein can be coaxial cable, data ground or power line cables etc.The below minute two embodiment describe respectively this system:
Embodiment 1
In embodiment 1, cable adopts coaxial cable.Fig. 2 shows among the embodiment 1, the structure of network/power transmission device 11.
Particularly, the structure of network/power transmission device 11 comprises: connect video camera by network cable, receive the Ethernet interface 111 of the network signal of video camera output; Connect Ethernet interface 111, network signal is carried out the network interface circuit 112 that data are processed; Interconnection network interface circuit 112, the network exchange circuit 114 of realization multi-channel network Signal Exchange Processing when having the multi-channel network signal; Interconnection network switched circuit 114 becomes the network signal code conversion network signal change-over circuit 115 of one coaxial signal; Interconnection network signaling conversion circuit 115 and coaxial cable send to coaxial signal the first coaxial cable interface 116 of network fiber transmission trunk device 21 by coaxial cable; Be connected with each power circuit in the system, the voltage transitions that will be inputted by the first coaxial cable interface 116 by network fiber transmission trunk device 21 is the first power-switching circuit of each power circuit required voltage.Wherein, Ethernet interface 111 can be the RJ45 interface.
Further, network/power transmission device 11 also can adopt Power over Ethernet (Power Over Ethernet, POE) technology, at this moment, network/power transmission device 11 also comprises: be connected between Ethernet interface 111 and the network exchange circuit 114, network exchange circuit 114 is passed the voltage of coming after the POE processing circuit processes, export to the Power over Ethernet circuit 113 of video camera by Ethernet interface 111, thereby solved the powerup issue during engineering is used, particularly the network port place for new installing does not need again to lay feed cable, lower the engineering wiring cost, easy to use, safeguard simple.
Fig. 3 shows among the embodiment 1, a kind of structure of network fiber transmission trunk device 12.
Particularly, network fiber transmission trunk device 12 comprises: by coaxial cable interconnection network/power transmission device 11, receive the second coaxial cable interface 211 via the coaxial signal of coaxial cable transmission; Connect the second coaxial cable interface 211, coaxial signal is carried out the network that network data processes/power delivery circuit 212; Interconnection network/power delivery circuit 212 is converted to network signal with the multichannel coaxial signal and realizes network signal conversion and the network exchange circuit 213 of multi-channel network Signal Exchange Processing when having the multichannel coaxial signal; The interconnection network signal is changed and network exchange circuit 213, network signal is converted to the first fiber-optic signal change-over circuit 214 of light signal; Connect the first fiber-optic signal change-over circuit 214 and optical fiber cable, light signal is sent to the first optical fiber interface 215 of network fiber switch by optical fiber cable; Be connected with each power circuit in the system, external input voltage be converted to the second source change-over circuit (not shown) of described each power circuit required voltage; Be connected with the second source change-over circuit, accept the power input interface (not shown) of external power source input.
Embodiment 2
In embodiment 2, cable Adoption Network cable shows among the embodiment 2 structure chart of signal transmission system such as Fig. 4.Wherein, it is the transmitter of putting down in writing in 201020233043.1 the formerly patent that transmitter 31 adopts the applicant's application numbers, and this transmitter interconnection network cable is used for video/audio/control/power supply signal to the network cable transmission and processes and transmit.
Fig. 5 shows among the embodiment 2, the structure of network fiber transmission trunk device 41.
Particularly, network fiber transmission trunk device 41 comprises: connect transmitter 31, to the video/audio/control/power supply signal video/audio/control of processing/power supply encoding and decoding treatment circuit 411 of decoding; Connect video/audio/control/power supply encoding and decoding treatment circuit 411, video/audio/control/power supply signal is converted to the second fiber-optic signal change-over circuit 412 of fiber-optic signal; Connect the second fiber-optic signal change-over circuit 412 and optical fiber cable, fiber-optic signal is transferred to the second optical fiber interface 413 of network fiber switch by optical fiber cable.Because embodiment 2 parts have adopted existing patented technology, therefore can greatly reduce the engineering construction difficulty.
Be integrated with cable transmission network and optical fiber transmission network in the signal transmission system that the utility model provides, with respect to the short problem of transmission range in the prior art, can realize that middle and long distance combines in transmission course, satisfy the application in the engineering.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (8)
1. a signal transmission system is characterized in that, described system comprises:
Network/power transmission device group, described network/power transmission device group comprise network/power transmission device that at least one is connected with video camera, network signal and/or the analog audio-video signal integration of described video camera output become a cable signal;
The network fiber transmission trunk device group that connects described network/power transmission device group, described network fiber transmission trunk device group comprise at least one by cable and described network/power transmission device group be connected optical fiber cable and be connected with the network fiber switch, described cable signal is converted to the network fiber transmission trunk device that is transferred to described network fiber switch behind the fiber-optic signal by described optical fiber cable.
2. signal transmission system as claimed in claim 1 is characterized in that, described network/power transmission device comprises:
Connect described video camera by network cable, receive the Ethernet interface of the network signal of described video camera output;
Connect described Ethernet interface, described network signal is carried out the network interface circuit that data are processed;
Connect described network interface circuit, when having the multi-channel network signal, realize the network exchange circuit of multi-channel network Signal Exchange Processing;
Connect described network exchange circuit, described network signal code conversion is become the network signal change-over circuit of a coaxial signal;
Connect described network signal change-over circuit and coaxial cable, described coaxial signal is sent to the first coaxial cable interface of described network fiber transmission trunk device by described coaxial cable;
Be connected with each power circuit in the described system, the voltage transitions that will be inputted by the first coaxial cable interface by described network fiber transmission trunk device is the first power-switching circuit of described each power circuit required voltage.
3. signal transmission system as claimed in claim 2 is characterized in that, described Ethernet interface is the RJ45 interface.
4. signal transmission system as claimed in claim 2 is characterized in that, described network/power transmission device also comprises:
Be connected between described Ethernet interface and the described network exchange circuit, described network exchange circuit is passed the voltage of coming after the POE processing circuit processes, export to the Power over Ethernet circuit of described video camera by described Ethernet interface.
5. signal transmission system as claimed in claim 2 is characterized in that, described network fiber transmission trunk device comprises:
Connect described network/power transmission device by coaxial cable, receive the second coaxial cable interface via the described coaxial signal of described coaxial cable transmission;
Connect described the second coaxial cable interface, described coaxial signal is carried out the network that network data processes/power delivery circuit;
Connect described network/power delivery circuit, when having the multichannel coaxial signal, the multichannel coaxial signal is converted to network signal and realizes network signal conversion and the network exchange circuit of multi-channel network Signal Exchange Processing;
Connect described network signal conversion and network exchange circuit, network signal is converted to the first fiber-optic signal change-over circuit of light signal;
Connect described the first fiber-optic signal change-over circuit and optical fiber cable, described light signal is sent to the first optical fiber interface of described network fiber switch by described optical fiber cable;
Be connected with each power circuit in the described system, external input voltage be converted to the second source change-over circuit of described each power circuit required voltage;
Be connected with the second source change-over circuit, accept the power input interface of external power source input.
6. signal transmission system as claimed in claim 1 is characterized in that, described network/power transmission device comprises:
The interconnection network cable is to the transmitter that video/audio/control/power supply signal is processed and transmitted of network cable transmission.
7. signal transmission system as claimed in claim 1 is characterized in that, described network fiber transmission trunk device comprises:
Connect described transmitter, to described video/audio/control/power supply signal video/audio/control of processing/power supply encoding and decoding treatment circuit of decoding;
Connect described video/audio/control/power supply encoding and decoding treatment circuit, described video/audio/control/power supply signal is converted to the second fiber-optic signal change-over circuit of fiber-optic signal;
Connect described the second fiber-optic signal change-over circuit and optical fiber cable, described fiber-optic signal is transferred to the second optical fiber interface of described network fiber switch by described optical fiber cable.
8. such as each described signal transmission system of claim 1 to 7, it is characterized in that, described a plurality of network/power transmission device is connected with described network fiber transmission trunk device by point-to-point mode respectively, and perhaps described a plurality of network/power transmission device is connected with described network fiber transmission trunk device by described cable after adopting node type to connect;
Described a plurality of network fiber transmission trunk device is connected with described network fiber switch by point-to-point mode respectively, and perhaps described a plurality of network fiber transmission trunk device is connected with described network fiber switch by described optical fiber cable after adopting node type to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583225 CN202918412U (en) | 2012-11-07 | 2012-11-07 | Signal transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220583225 CN202918412U (en) | 2012-11-07 | 2012-11-07 | Signal transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202918412U true CN202918412U (en) | 2013-05-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220583225 Expired - Lifetime CN202918412U (en) | 2012-11-07 | 2012-11-07 | Signal transmission system |
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| Country | Link |
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| CN (1) | CN202918412U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929249A (en) * | 2014-04-16 | 2014-07-16 | 北京经纬恒润科技有限公司 | Remote virtual direct connection data transmission method and system |
| CN107666159A (en) * | 2016-07-28 | 2018-02-06 | 深圳市赛音电子有限公司 | A kind of supply unit |
| CN107864320A (en) * | 2017-04-05 | 2018-03-30 | 北京图森未来科技有限公司 | A kind of video frequency transmitter and vehicle carried driving accessory system |
| CN109842099A (en) * | 2017-11-27 | 2019-06-04 | 许继集团有限公司 | A kind of route protection dual secondary circuit implementation method |
-
2012
- 2012-11-07 CN CN 201220583225 patent/CN202918412U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103929249A (en) * | 2014-04-16 | 2014-07-16 | 北京经纬恒润科技有限公司 | Remote virtual direct connection data transmission method and system |
| CN107666159A (en) * | 2016-07-28 | 2018-02-06 | 深圳市赛音电子有限公司 | A kind of supply unit |
| CN107666159B (en) * | 2016-07-28 | 2023-12-26 | 深圳市赛音电子有限公司 | Power supply device |
| CN107864320A (en) * | 2017-04-05 | 2018-03-30 | 北京图森未来科技有限公司 | A kind of video frequency transmitter and vehicle carried driving accessory system |
| CN107864320B (en) * | 2017-04-05 | 2020-08-21 | 北京图森智途科技有限公司 | Video transmission device and vehicle-mounted driving auxiliary system |
| CN109842099A (en) * | 2017-11-27 | 2019-06-04 | 许继集团有限公司 | A kind of route protection dual secondary circuit implementation method |
| CN109842099B (en) * | 2017-11-27 | 2021-08-03 | 许继集团有限公司 | Method for realizing line protection dual secondary circuit |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |