CN103236873B - Optical fiber transfer power line transition of communications system, Apparatus and method for - Google Patents
Optical fiber transfer power line transition of communications system, Apparatus and method for Download PDFInfo
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- CN103236873B CN103236873B CN201310138074.7A CN201310138074A CN103236873B CN 103236873 B CN103236873 B CN 103236873B CN 201310138074 A CN201310138074 A CN 201310138074A CN 103236873 B CN103236873 B CN 103236873B
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Abstract
The present invention discloses a kind of optical fiber transfer power line transition of communications method, and comprising: S1, optical signal processing unit have judged whether that downlink optical signal imports into from fiber optic network, PLC signal processing unit has judged whether that up electric-power wire communication signal imports into from distribution network; S2, when there being downlink optical signal to import into from fiber optic network, described downlink optical signal is converted to descending electric-power wire communication signal and will described descending electric line communication signal coupling extremely described distribution network; S3, when there being up electric-power wire communication signal to import into from distribution network, described up electric-power wire communication signal being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network.The present invention also provides a kind of optical fiber transfer power line transition of communications system, equipment.The present invention, by fiber-optic signal is converted to electric-power wire communication signal, when network is registered one's residence, by the existing distribution network access that coverage is very wide, avoids the difficult wiring problem that direct fiber entering household brings.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of optical fiber transfer power line transition of communications system, Apparatus and method for.
Background technology
At present, during existing fiber optic network access, most of optical fiber is all only routed to community or to building, to accomplish that fiber entering household then needs in the rewiring of each family, if use fiber entering household, usually can runs into installation and maintenance difficult problem; Mechanical fiber optic intensity is low in addition, higher to construction technical requirement; And no matter present stage is cable runs or fiber plant, price still costly.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of optical fiber transfer power line transition of communications system, Apparatus and method for, by fiber-optic signal is converted to electric-power wire communication signal, when network is registered one's residence, by the existing distribution network access that coverage is very wide, avoid the difficult wiring problem that direct fiber entering household brings.
For solving the problem, the technical scheme that the present invention adopts is:
The optical fiber transfer power line communication device that a kind of optical fiber transfer power line transition of communications system comprises fiber optic network, distribution network and is connected respectively with described fiber optic network and distribution network is provided; Described optical fiber transfer power line communication device is used for when there being downlink optical signal to import into from fiber optic network, described downlink optical signal is converted to descending electric-power wire communication signal also by described descending electric line communication signal coupling extremely described distribution network, and for when there being up electric-power wire communication signal to import into from distribution network, described up electric-power wire communication signal being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network.
Wherein, the PLC signal processing unit that described optical fiber transfer power line communication device comprises optical signal processing unit and is connected with described optical signal processing unit, described optical signal processing unit comprises the interface module be connected with described fiber optic network and the optical fiber modulation /demodulation module be connected with described interface module, and described PLC signal processing unit comprises the carrier signal coupling module be connected with described distribution network and the power line communication processing module be connected with described carrier signal coupling module; The downlink optical signal that described interface module is used for fiber optic network sends is passed to optical fiber modulation /demodulation module, described optical fiber modulation /demodulation module is used for downlink optical signal being demodulated into ethernet signal and being sent to PLC signal processing unit, described PLC signal processing unit is used for the ethernet signal received to be converted to descending electric-power wire communication signal, and described carrier signal coupling module is used for descending electric line communication signal coupling to distribution network; Described carrier signal coupling module also for up electric line communication signal coupling that distribution network is sent to PLC signal processing unit, described PLC signal processing unit is also for being converted to ethernet signal by up electric-power wire communication signal and being sent to optical fiber modulatedemodulate mode transfer, described optical fiber modulation /demodulation module is also for being modulated to uplink optical signal by the ethernet signal received, and described interface module is used for uplink optical signal to be sent to fiber optic network.
Wherein, described optical fiber transfer power line communication device also comprises the luminous indicating member be connected respectively with described optical signal processing unit and PLC signal processing unit, described optical fiber transfer power line signal of communication communication device is also for carrying out the conversion of uplink and downlink light signal and ethernet signal when described optical signal processing unit, or when described PLC signal processing unit carries out the conversion between ethernet signal and uplink and downlink electric-power wire communication signal, drive described luminous indicating member to light.
Another technical solution used in the present invention is:
A kind of optical fiber transfer power line transition of communications method is provided, run in described a kind of optical fiber transfer power line transition of communications system, comprise: S1, optical signal processing unit have judged whether that downlink optical signal imports into from fiber optic network, PLC signal processing unit has judged whether that up electric-power wire communication signal imports into from distribution network; S2, when there being downlink optical signal to import into from fiber optic network, described downlink optical signal is converted to descending electric-power wire communication signal and will described descending electric line communication signal coupling extremely described distribution network; S3, when there being up electric-power wire communication signal to import into from distribution network, described up electric-power wire communication signal being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network.
Wherein, the specific implementation step of described S2 comprises: downlink optical signal is demodulated into ethernet signal by optical signal processing unit; Ethernet signal is converted to descending electric-power wire communication signal by PLC signal processing unit; PLC signal processing unit by descending electric line communication signal coupling to distribution network.
Wherein, the specific implementation step of described S3 comprises: up electric-power wire communication signal is converted to ethernet signal by PLC signal processing unit; Ethernet signal is modulated to uplink optical signal by optical signal processing unit; Uplink optical signal is sent to fiber optic network by optical signal processing unit.
Another technical scheme of the present invention is:
A kind of optical fiber transfer power line communication device is provided, the PLC signal processing unit comprising optical signal processing unit and be connected with described optical signal processing unit, described optical signal processing unit comprises the interface module be connected with described fiber optic network and the optical fiber modulation /demodulation module be connected with described interface module, and described PLC signal processing unit comprises the carrier signal coupling module be connected with described distribution network and the power line communication processing module be connected with described carrier signal coupling module; The downlink optical signal that described interface module is used for fiber optic network sends is passed to optical fiber modulation /demodulation module, described optical fiber modulation /demodulation module is used for downlink optical signal being demodulated into ethernet signal and being sent to power line communication processing module, power line communication processing module is used for the ethernet signal received to be converted to descending electric-power wire communication signal, and described carrier signal coupling module is used for descending electric line communication signal coupling to distribution network; Described carrier signal coupling module also for up electric line communication signal coupling that distribution network is sent to power line communication processing module, described power line communication processing module is also for being converted to ethernet signal by up electric-power wire communication signal and being sent to optical fiber modulatedemodulate mode transfer, described optical fiber modulation /demodulation module is also for being modulated to uplink optical signal by the ethernet signal received, and described interface module is used for uplink optical signal to be sent to fiber optic network.
Wherein, described a kind of optical fiber transfer power line communication device also comprises the luminous indicating member be connected respectively with described optical signal processing unit and PLC signal processing unit, described optical fiber transfer power line signal of communication communication device is also for carrying out the conversion of uplink and downlink light signal and ethernet signal when described optical signal processing unit, or when described PLC signal processing unit carries out the conversion between ethernet signal and uplink and downlink electric-power wire communication signal, drive described luminous indicating member to light.
Wherein said a kind of optical fiber transfer power line communication device also comprises the network interface unit be connected with described optical signal processing unit, and described network interface unit is used for access network device and makes the network equipment carry out data interaction by optical signal processing unit and fiber optic network.
Wherein, described power line communication processing module comprises the modulation /demodulation treatment circuit, electric-power wire communication signal D/A converting circuit, signal gain control treatment circuit and the input and output filter circuit that are connected step by step.
Optical fiber transfer power line transition of communications system of the present invention, Apparatus and method for are for fiber entering household difficult wiring and expensive deficiency, optical fiber is adopted to add the mode of power line access network, i.e. FTTC or after building, utilize optical fiber transfer power line communication device of the present invention that optical fiber communication signal is converted to electric-power wire communication signal, then existing distribution network is linked into, by Network stretch to subscriber household, carry out transfer of data by power line, thus realize network and register one's residence.This access way need not set up more circuit and miscellaneous equipment, only need utilize existing distribution network infrastructure, not need rewiring, and power line wide coverage, is conducive to economizing on resources and cost.
Accompanying drawing explanation
Fig. 1 is the system architecture diagram of the optical fiber transfer power line transition of communications system in an embodiment of the present invention;
Fig. 2 is the structured flowchart of the optical fiber transfer power line communication device in an embodiment of the present invention;
Fig. 3 is the structured flowchart of optical signal processing unit in an embodiment of the present invention;
Fig. 4 is the structured flowchart of PLC signal processing unit in an embodiment of the present invention;
Fig. 5 is the flowchart of the optical fiber transfer power line transition of communications method in an embodiment of the present invention.
Main element symbol description
10, optical fiber transfer power line communication device; 20, fiber optic network; 30, distribution network; 11, optical signal processing unit; 111, interface module; 112, optical fiber modulation /demodulation module; 12, PLC signal processing unit; 121, power line communication processing module; 1211, modulation /demodulation treatment circuit; 1212, electric-power wire communication signal D/A converting circuit; 1213, signal gain control treatment circuit; 1214, input and output filter circuit; 122, carrier signal coupling module; 13, network interface unit; 14, luminous indicating member.
Embodiment
By describing technology contents of the present invention, structural feature in detail, realized object and effect, accompanying drawing is coordinated to be explained in detail below in conjunction with execution mode.
Referring to Fig. 1, is the system architecture diagram of the optical fiber transfer power line transition of communications system in an embodiment of the present invention.The optical fiber transfer power line communication device 10 that this optical fiber transfer power line transition of communications system comprises fiber optic network 20, distribution network 30 and is connected respectively with described fiber optic network 20 and distribution network 30.Described optical fiber transfer power line communication device 10 is for when there being downlink optical signal to import into from fiber optic network 20, described downlink optical signal is converted to descending electric-power wire communication signal also by described descending electric line communication signal coupling extremely described distribution network 30, described up electric-power wire communication signal also for when there being up electric-power wire communication signal to import into from distribution network 30, being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network 20 by described optical fiber transfer power line communication device 10.
Referring to Fig. 2, is the structured flowchart of the optical fiber transfer power line communication device in an embodiment of the present invention.The PLC signal processing unit 12 that described optical fiber transfer power line communication device 10 comprises optical signal processing unit 11 and is connected with described optical signal processing unit 11, described optical signal processing unit 11 is for realizing the conversion between uplink and downlink light signal and ethernet signal, and described PLC signal processing unit is for realizing the conversion between ethernet signal and uplink and downlink electric-power wire communication signal.
Particularly, see also Fig. 3, Fig. 4, Fig. 3 is the structured flowchart of optical signal processing unit in an embodiment of the present invention, Fig. 4, is the structured flowchart of PLC signal processing unit in an embodiment of the present invention.Described optical signal processing unit 11 comprises the interface module 111 be connected with described fiber optic network 20 and the optical fiber modulation /demodulation module 112 be connected with described interface module 111.Described PLC signal processing unit 12 comprises the carrier signal coupling module 122 be connected with described distribution network 30 and the power line communication processing module 121 be connected with described carrier signal coupling module 122.Described power line communication processing module 121 comprises the modulation /demodulation treatment circuit 1211, electric-power wire communication signal D/A converting circuit 1212, signal gain control treatment circuit 1213 and the input and output filter circuit 1214 that are connected step by step.
Described interface module 111 is passed to optical fiber modulation /demodulation module 112 for the downlink optical signal sent by fiber optic network 20, described optical fiber modulation /demodulation module 112 is for being demodulated into ethernet signal by downlink optical signal and being sent to power line communication processing module 121, described power line communication processing module 121 for the ethernet signal received is converted to descending electric-power wire communication signal, described carrier signal coupling module 122 for by descending electric line communication signal coupling to distribution network 30.
Described carrier signal coupling module 122 also for up electric line communication signal coupling that distribution network 30 is sent to power line communication processing module 121, described power line communication processing module 121 is also for being converted to ethernet signal by up electric-power wire communication signal and being sent to optical fiber modulation /demodulation module 112, described optical fiber modulation /demodulation module 112 is also for being modulated to uplink optical signal by the ethernet signal received, and described interface module 111 is for being sent to fiber optic network 20 by uplink optical signal.
Described optical fiber transfer power line communication device 10 also comprises luminous indicating member 14, described optical fiber transfer power line communication device 10 is also for carrying out the conversion of uplink and downlink light signal and ethernet signal when described optical signal processing unit 11, or when described PLC signal processing unit 12 carries out the conversion between ethernet signal and uplink and downlink electric-power wire communication signal, drive described luminous indicating member to light, described luminous indicating member can be LED or other light source.Described optical fiber transfer power line communication device 10 also comprises the network interface unit 13 be connected with described optical signal processing unit, and described network interface unit 13 is for access network device and make the network equipment carry out data interaction by optical signal processing unit 11 and fiber optic network 20.
Referring to Fig. 5, is the flowchart of the optical fiber transfer power line transition of communications method in an embodiment of the present invention.This optical fiber transfer power line transition of communications method runs in described optical fiber transfer power line transition of communications system, comprises step:
Step S1, optical signal processing unit have judged whether that downlink optical signal imports into from fiber optic network and PLC signal processing unit has judged whether that up electric-power wire communication signal imports into from distribution network;
Step S2, when there being downlink optical signal to import into from fiber optic network, described downlink optical signal is converted to descending electric-power wire communication signal and will described descending electric line communication signal coupling extremely described distribution network;
Step S3, when there being up electric-power wire communication signal to import into from distribution network, described up electric-power wire communication signal being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network.
Wherein, the specific implementation step of described step S2 comprises:
Downlink optical signal is demodulated into ethernet signal by step S21, optical signal processing unit;
Ethernet signal is converted to descending electric-power wire communication signal by step S22, PLC signal processing unit;
Step S23, PLC signal processing unit by descending electric line communication signal coupling to distribution network.
Wherein, the specific implementation step of described S3 comprises:
Up electric-power wire communication signal is converted to ethernet signal by step S31, PLC signal processing unit;
Ethernet signal is modulated to uplink optical signal by step S32, optical signal processing unit;
Uplink optical signal is sent to fiber optic network by step S33, optical signal processing unit.
Optical fiber transfer power line transition of communications system of the present invention, Apparatus and method for are for fiber entering household difficult wiring and expensive deficiency, optical fiber is adopted to add the mode of power line access network, i.e. FTTC or after building, utilize optical fiber transfer power line communication device of the present invention that optical fiber communication signal is converted to electric-power wire communication signal, then existing distribution network is linked into, by Network stretch to subscriber household, carry out transfer of data by power line, thus realize network and register one's residence.This access way need not set up more circuit and miscellaneous equipment, only need utilize existing distribution network infrastructure, not need rewiring, and power line wide coverage, is conducive to economizing on resources and cost.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (2)
1. an optical fiber transfer power line transition of communications system, is characterized in that, the optical fiber transfer power line communication device comprising fiber optic network, distribution network and be connected respectively with described fiber optic network and distribution network; Described optical fiber transfer power line communication device is used for when there being downlink optical signal to import into from fiber optic network, described downlink optical signal is converted to descending electric-power wire communication signal also by described descending electric line communication signal coupling extremely described distribution network, and for when there being up electric-power wire communication signal to import into from distribution network, described up electric-power wire communication signal being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network;
The PLC signal processing unit that described optical fiber transfer power line communication device comprises optical signal processing unit and is connected with described optical signal processing unit, described optical signal processing unit comprises the interface module be connected with described fiber optic network and the optical fiber modulation /demodulation module be connected with described interface module, and described PLC signal processing unit comprises the carrier signal coupling module be connected with described distribution network and the power line communication processing module be connected with described carrier signal coupling module;
The downlink optical signal that described interface module is used for fiber optic network sends is passed to optical fiber modulation /demodulation module, described optical fiber modulation /demodulation module is used for downlink optical signal being demodulated into ethernet signal and being sent to PLC signal processing unit, described PLC signal processing unit is used for the ethernet signal received to be converted to descending electric-power wire communication signal, and described carrier signal coupling module is used for descending electric line communication signal coupling to distribution network;
Described carrier signal coupling module also for up electric line communication signal coupling that distribution network is sent to PLC signal processing unit, described PLC signal processing unit is also for being converted to ethernet signal by up electric-power wire communication signal and being sent to optical fiber modulation /demodulation module, described optical fiber modulation /demodulation module is also for being modulated to uplink optical signal by the ethernet signal received, and described interface module is used for uplink optical signal to be sent to fiber optic network;
Described optical fiber transfer power line communication device also comprises the luminous indicating member be connected respectively with described optical signal processing unit and PLC signal processing unit, described optical fiber transfer power line communication device is also for carrying out the conversion of uplink and downlink light signal and ethernet signal when described optical signal processing unit, or when described PLC signal processing unit carries out the conversion between ethernet signal and uplink and downlink electric-power wire communication signal, drive described luminous indicating member to light;
Described power line communication processing module comprises the modulation /demodulation treatment circuit, electric-power wire communication signal D/A converting circuit, signal gain control treatment circuit and the input and output filter circuit that are connected step by step.
2. an optical fiber transfer power line transition of communications method, runs in a kind of optical fiber transfer power line transition of communications system according to claim 1, it is characterized in that, comprising:
S1, optical signal processing unit have judged whether that downlink optical signal imports into from fiber optic network, and PLC signal processing unit has judged whether that up electric-power wire communication signal imports into from distribution network;
S2, when there being downlink optical signal to import into from fiber optic network, described downlink optical signal is converted to descending electric-power wire communication signal and will described descending electric line communication signal coupling extremely described distribution network;
S3, when there being up electric-power wire communication signal to import into from distribution network, described up electric-power wire communication signal being converted to uplink optical signal and described uplink optical signal is sent to described fiber optic network; The specific implementation step of described S2 comprises:
Downlink optical signal is demodulated into ethernet signal by optical signal processing unit;
Ethernet signal is converted to descending electric-power wire communication signal by PLC signal processing unit;
PLC signal processing unit by descending electric line communication signal coupling to distribution network;
Up electric-power wire communication signal is converted to ethernet signal by PLC signal processing unit;
Ethernet signal is modulated to uplink optical signal by optical signal processing unit;
Uplink optical signal is sent to fiber optic network by optical signal processing unit.
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104882966B (en) * | 2015-06-08 | 2017-04-26 | 国网山东龙口市供电公司 | Distribution network automation communication system |
| CN105306103A (en) * | 2015-11-26 | 2016-02-03 | 国网辽宁省电力有限公司大连供电公司 | Processing system for downlink signal of power distribution automation system |
| CN106330263A (en) * | 2016-09-05 | 2017-01-11 | 国网辽宁省电力有限公司大连供电公司 | Uplink signal processing system |
| CN106656265B (en) * | 2016-12-29 | 2022-12-02 | 国网辽宁省电力有限公司沈阳供电公司 | Mixed medium communication network and uninterrupted communication method |
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| CN101317350A (en) * | 2005-11-29 | 2008-12-03 | Ls电线有限公司 | Power line communication system using hybrid-fiber coaxial and communication device used in the system |
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| CN101317350A (en) * | 2005-11-29 | 2008-12-03 | Ls电线有限公司 | Power line communication system using hybrid-fiber coaxial and communication device used in the system |
| CN201966905U (en) * | 2010-08-09 | 2011-09-07 | 上海中朗通信技术有限公司 | Power line carrier communication module with optical fiber port |
| CN203301476U (en) * | 2013-04-19 | 2013-11-20 | 深圳市国电科技通信有限公司 | System and apparatus for conversion from optical fiber to electric line |
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