CN201766684U - Multi-channel digital-analog signal variable wavelength optical transmission device - Google Patents
Multi-channel digital-analog signal variable wavelength optical transmission device Download PDFInfo
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- CN201766684U CN201766684U CN2010202583863U CN201020258386U CN201766684U CN 201766684 U CN201766684 U CN 201766684U CN 2010202583863 U CN2010202583863 U CN 2010202583863U CN 201020258386 U CN201020258386 U CN 201020258386U CN 201766684 U CN201766684 U CN 201766684U
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Abstract
The utility model discloses a multi-channel digital-analog signal variable wavelength optical transmission device. A collaborative communication module in the device is respectively connected with the rest modules through a bus; an optical/wireless/cable transceiver module is sequentially connected with a photoelectric conversion module, a wavelength conversion module, a filter shaping module, a modulation/demodulation module and a wavelength division multiplexing module; an up/down-going signal is inputted through the port of the optical/wireless/cable transceiver module, and is outputted through the port of the optical/wireless/cable transceiver module after passing through various processing procedures. The device solves the resources problem caused by synchronously transmitting the analog and digital signals in a single fiber, and flexibly process signals of different formats through flexible configuration of the device. The device management function of the operating system is more powerful and more complete.
Description
Technical field
The utility model relates to the optical fiber transmission technique field, specifically be a kind ofly to carry out multi-channel digital and analogue signals mixed transport device by optical fiber, this device is to utilize existing precious railway repeater telecommunication optical fiber resource, carrying out mixed transport behind opto-electronic conversion of processes such as analog optical signal (or signal of telecommunication) and Ethernet data light signal necessity or the wavelength conversion in single fiber.
Background technology
The light signal that the Digital Optical Terminal of low capacity or simulated light terminal often can only aggregate transmission one type (analog or digital) in existing, its modularization and integrated level are lower, still can not satisfy the requirement that the multi-modulation scheme signal passes in single fiber altogether, flexible configuration is expanded, conveniently managed.The data of these existing equipments all are to adopt separated transmission, analog signal (radio frequency, sound etc.) is that network and the circuit that passes through respectively separately arrives different receiving terminals with digital signal (ethernet signal etc.), and receiving terminal is often all at same information monitoring central machine room, particularly in the direct discharging station of railway communication, fiber resource is limited, again it is consuming time to lay optical fiber consumption worker, it is higher to buy single-function device cost summation, be not suitable for the track traffic informix needs of transmission fast, hindered the fast development of track traffic to a certain extent.Therefore operation for convenience, unified supervision, necessary transmitting in the signal integration to of these different systems network.
The utility model content
Technical problem to be solved in the utility model provides a kind of can the utilization and has the variable-wavelength optical transmission device for multi-channel digital and analogue signals that single fiber carries out multiple signal aggregate transmission now.
Variable-wavelength optical transmission device for multi-channel digital and analogue signals described in the utility model, it comprises the communication for coordination module, light/Wireless/wired transceiver module, photoelectric conversion module, Wavelength conversion module, the filter shape module, the modulation module, Wavelength division multiplexing module, the oam module, clock synchronization module, protocol conversion module and power supply conversion module, described communication for coordination module connects above-mentioned all the other modules respectively by bus, and light/Wireless/wired transceiver module connects photoelectric conversion module successively, Wavelength conversion module, the filter shape module, modulation module and Wavelength division multiplexing module; Uplink and downlink signals inserts from the port of light/Wireless/wired transceiver module, and still exports from the port of light/Wireless/wired transceiver module after passing through various processing.
Above-mentioned communication for coordination module also is connected with warning system module and environmental monitoring module by bus.
The course of work of this variable-wavelength optical transmission device for multi-channel digital and analogue signals may further comprise the steps:
1) digital signal transfers to light/Wireless/wired transceiver module through the Ethernet electrical signal ports;
2) this digital signal is carried out the demodulation conversion through bus by protocol conversion module simultaneously, and isolates the up-downgoing business datum;
3) digital signal after the separation is modulated into signal through photoelectric conversion module the uplink and downlink light signal of suitable wavelength again;
4) convert to can be at ONU equipment (ONU (Optical Network Unit) optical network unit through protocol conversion module once more for light signal, generally be called optical network unit the equipment that comprises optical receiver, up optical sender, a plurality of bridging amplifier network monitorings is housed) go up the signal format of transmission, send into the wavelength division multiplexing veneer;
5) simultaneously, the analog radio-frequency signal that up-downgoing separates also transfers to light/Wireless/wired transceiver module, if wavelength is identical with front two-way wavelength, then carries out wavelength conversion through Wavelength conversion module earlier, and then through filter shape, delivers to the wavelength division multiplexing veneer; If wavelength is different with front two-way wavelength, then directly deliver to the wavelength division multiplexing veneer;
6) after multipath light signal synthesizes through wavelength division multiplexing, be connected to Surveillance center's equipment at a distance together through single fiber, realized the single fiber mixed transport of digital and analog signaling from light/Wireless/wired transceiver module port.
Equipment of the present utility model has adopted frame-saw groove structure, and modules such as light/Wireless/wired transmitting-receiving, opto-electronic conversion, wavelength conversion, modulation, wavelength division multiplexing, filter shape, oam, clock synchronization, protocol conversion, communication for coordination, power supply conversion are separated on each module.The data of different systems are used different interface and data processing module, by modules such as wavelength conversion, opto-electronic conversion the data-modulated of separating on different wavelength, converge on the single fiber by Wavelength division multiplexing module at last and transmit.In this process, the operation of operational administrative module controls entire equipment, the running status of record and watch-dog can be reported to the police and early warning automatically, in case of necessity data upload is arrived top management equipment, and carries out the instruction that high-level device issues.The operational administrative module is actually the microcomputer of a simplification, form by necessary hardware systems such as microprocessor, internal memory, hard disk, communication port, ancillary equipment, and be equipped with operating system, with the communicating by letter and controlled function software and man machine operation interface of each module, use various communications protocols and inner each module and external device communication.This equipment also can adopt traditional box type encapsulating structure, and the function height of above-mentioned all modules or part of module is integrated into wherein, to adapt to on-the-spot different functional requirement and environmental demand.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment the utility model is described in detail.
Example 1: suppose to have in the machine room of certain the light signal that comes from the analog communication radio frequency and the two kinds of signal demands of the digital Ethernet signal of telecommunication that come from video monitoring to be transferred to Surveillance center at a distance, detailed process is as follows:
As Fig. 1, at first digital Ethernet electrical signal ports is connected to the light/Wireless/wired transceiver module of this equipment, protocol conversion module carries out demodulation conversion with the signal that receives by the modulation module by the communication for coordination module, isolate the up-downgoing business datum, through photoelectric conversion module signal is modulated into the uplink and downlink light signal of suitable wavelength again, and pass through PON (PON (Passive Optical Network) EPON once more, it is a kind of prefect dielectric network, the electromagnetic interference and the effects of lightning of external equipment have been avoided, reduced the failure rate of circuit and external equipment, improved system reliability, having saved maintenance cost simultaneously, is the technology of the long-term expectation of telecommunications maintenance department.An EPON comprises an optical line terminal that is installed on console for centralized control, and a collection of supporting optical network unit that is installed on customer site.Optical distribution between optical line terminal and optical network unit has comprised optical fiber and passive optical splitters or coupler.) the procotol modular converter, convert to and can send into Wavelength division multiplexing module in the signal format of ONU device transmission; Simultaneously, the analog radio frequency light signal that up-downgoing has separated is connected to the input and output port on the light/Wireless/wired transceiver module of this equipment, if wavelength is identical with front two-way wavelength, then must carry out wavelength conversion through the wavelength Conversion module earlier, and then through the filtering Shaping Module, deliver to Wavelength division multiplexing module, after this four road light signal synthesizes through wavelength division multiplexing, the first line of a couplet port of slave unit is connected to Surveillance center's equipment at a distance together through single fiber, has realized the single fiber mixed transport of digital and analog signaling.In the middle of this process, clock synchronization module provides the regularly strict of trigger action, and the oam module is coordinated the work of each module, and collects power supply modular converter state, environmental monitoring module status, handles and the display alarm signal control rotation speed of the fan etc.
Exist the various wireless and wired light or the signal of telecommunication in actual applications, and need the signal of a plurality of scopes be transmitted and collect.Protocol conversion veneer in this programme can support that (ATM (Asynchronous Transfer Mode) asychronous transfer mode is a kind of connection-oriented fast packet switching technology that is based upon on circuit switching and the packet switching basis, and it adopts the unit of fixed length grouping as transmission and exchange for Ethernet protocol, ATM.The grouping of this fixed length is called cell in ATM) agreement, 802.11 protocol of wireless local area network, 3-G (Generation Three mobile communication system) agreement etc., and can satisfy the covering demand of different business by upgrading and configuration.
Example 2: suppose that (TD-SCDMA (Time Division-Synchronous Code Division Multiple Access) synchronous CDMA (Code Division Multiple Access) of time-division is one of 3G (Third Generation) Moblie air interface technical specification of the formal issue of International Telecommunications Union to the on-the-spot existing TD-SCDMA that sends from environmental monitoring and safety monitoring equipment, it has obtained comprehensive support of Chinese radio standard group and a plurality of international telecommunication normal structures) wireless wide band signal, wired again ethernet signal, then need to use relevant antenna and radio frequency interface, signal is after protocol conversion under receiving, modules such as opto-electronic conversion are delivered to the wavelength division multiplexing veneer together and are sent to receiving terminal.
The utility model provides a kind of thinking and implementation method of variable-wavelength optical transmission device for multi-channel digital and analogue signals; concrete application approach is a lot; the above only is a preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also make some improvement, these improvement also should be considered as protection range of the present utility model.
Claims (2)
1. variable-wavelength optical transmission device for multi-channel digital and analogue signals, it is characterized in that comprising the communication for coordination module, light/Wireless/wired transceiver module, photoelectric conversion module, Wavelength conversion module, the filter shape module, the modulation module, Wavelength division multiplexing module, the oam module, clock synchronization module, protocol conversion module and power supply conversion module, described communication for coordination module connects above-mentioned all the other modules respectively by bus, and light/Wireless/wired transceiver module connects photoelectric conversion module successively, Wavelength conversion module, the filter shape module, modulation module and Wavelength division multiplexing module; Uplink and downlink signals inserts from the port of light/Wireless/wired transceiver module, and still exports from the port of light/Wireless/wired transceiver module after passing through various processing.
2. variable-wavelength optical transmission device for multi-channel digital and analogue signals according to claim 1 is characterized in that the communication for coordination module also is connected with warning system module and environmental monitoring module by bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202583863U CN201766684U (en) | 2010-07-14 | 2010-07-14 | Multi-channel digital-analog signal variable wavelength optical transmission device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202583863U CN201766684U (en) | 2010-07-14 | 2010-07-14 | Multi-channel digital-analog signal variable wavelength optical transmission device |
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| Publication Number | Publication Date |
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| CN201766684U true CN201766684U (en) | 2011-03-16 |
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| CN2010202583863U Expired - Fee Related CN201766684U (en) | 2010-07-14 | 2010-07-14 | Multi-channel digital-analog signal variable wavelength optical transmission device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931554A (en) * | 2010-07-14 | 2010-12-29 | 南京泰通电子科技有限公司 | Variable-wavelength optical transmission device for multi-channel digital and analogue signals and working method thereof |
| CN105227236A (en) * | 2015-10-19 | 2016-01-06 | 中国电子科技集团公司第三十四研究所 | A kind of optical-fibre channel bus wireless optical transmission terminal and system |
-
2010
- 2010-07-14 CN CN2010202583863U patent/CN201766684U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101931554A (en) * | 2010-07-14 | 2010-12-29 | 南京泰通电子科技有限公司 | Variable-wavelength optical transmission device for multi-channel digital and analogue signals and working method thereof |
| CN101931554B (en) * | 2010-07-14 | 2012-11-07 | 南京泰通电子科技有限公司 | Variable-wavelength optical transmission device for multi-channel digital and analogue signals and working method thereof |
| CN105227236A (en) * | 2015-10-19 | 2016-01-06 | 中国电子科技集团公司第三十四研究所 | A kind of optical-fibre channel bus wireless optical transmission terminal and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20180714 |