CN102291285A - PFTTM (Passive optical network Fiber to the Home) service access system and method - Google Patents
PFTTM (Passive optical network Fiber to the Home) service access system and method Download PDFInfo
- Publication number
- CN102291285A CN102291285A CN2011102732621A CN201110273262A CN102291285A CN 102291285 A CN102291285 A CN 102291285A CN 2011102732621 A CN2011102732621 A CN 2011102732621A CN 201110273262 A CN201110273262 A CN 201110273262A CN 102291285 A CN102291285 A CN 102291285A
- Authority
- CN
- China
- Prior art keywords
- data
- power line
- network
- sms
- interface
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Small-Scale Networks (AREA)
- Telephonic Communication Services (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a PFTTM (Passive optical network Fiber to the Home) service access system and method. The system comprises an SMS (Storage Management Server) and one or more electric PLAs (Power Line Adaptors), wherein the SMS is used for receiving data in an OPLC (Optical Fiber Composite Low-Voltage Cable) and coupling the data to a to-the-home power line network; and the PLAs are used for receiving the data from the to-the-home power line network and transmitting the data to corresponding receiving equipment. According to the technical scheme provided by the invention, the problems of difficult OPLC installation process and low application property because a bandwidth cannot effectively support the increasing data stream in the conventional fiber to the home technology are solved, data stream access which is compatible with the conventional FTTH (Fiber To the Home) and is even wider is realized, three-network service integration is supported, and the effects of broadband access and household entertainment business service at any position with power supply inside the household of a user are achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of PFTTM service access system and method.
Background technology
Information superhighway is the key that realizes to the information-intensive society transformation, from WAN (Wide Area Network, wide area network), MAN (Metropolitan Area Network, metropolitan area network) to user access networks, and even the new page of human civilization has been opened in the invention and the enforcement of the diverse network technology of the home networking technology of user inside.Undoubtedly, industry has more unified understanding to the network technology of WAN and MAN, and at registering one's residence Access Network, then because the difference of numerous, the transmission medium of registering one's residence of operator and the difference of access service previously, make the consumer wideband access technology be in that technology is numerous, the skimble-scamble situation of standard.
Net is registered one's residence from transmission medium by existing family, can be divided into that copper cash is registered one's residence, optical fiber is registered one's residence net and wireless registering one's residence.The copper cash net of registering one's residence comprises common telephone network home loop and coaxial cable television network, the former access technology mainly is ADSL (Asymmetric Digital Subscriber Line, ADSL (Asymmetric Digital Subscriber Line)), the downstream rate of maximum 8Mnps can be provided, and coaxial main technical schemes of registering one's residence net has present DOCSIS (Data Over Cable Service Interface Specification, wire transmission data service interface specification) 2.0 and various EOC (Ethernet over COAX, the ether data are transmitted by coaxial cable) technology, can offer user's access rate of several million at most.
And wireless access technology is limit by the infinite bandwidth resource, and wideband switch-in business is difficult to carry out on a large scale.
Therefore, FTTH (Fiber To The Home, Fiber to the home) just becomes the technology of enjoying popular confidence.This is not only because the optical fiber cost of raw material cheap, and main is because the enormous bandwidth of optical fiber.Meanwhile, domestic consumer's high speed Internet access demand, IPTV (the IPTV)/demand for development of Triple Play (unification of three nets), the needs of MMS (Multimedia Message Service) (comprise tele-medicine, long-distance education, government and enterprises' informationization), P2P (Peer-to-Peer) has proposed urgent requirement to the appearance of multiple new business such as the consumption of bandwidth and the promotion that two-way video is used, high-resolution video monitoring, NodeB transmission, cable television operators management data business, new demand to the speed-raising of bandwidth.In addition, aggravation, the internal demands that reduces cost and the new technology of existing market competition all impel optical fiber to become the choosing of the certainty that solves current needs gradually to the good support of new business.
But in the implementation process of FTTH Access Network " last kilometer ".Also exist problems at present, as PON (Passive Optical Network as the access device core, passive optical-fiber network) equipment price is too high, the complex scene of user's house wiring causes single equipment form to be difficult to satisfy the actual needs of building, and construction mode under different scenes (all standing/thin covers, optical splitter is concentrated/dispersions, one-level beam split/secondary beam split, fused fiber splice/cold joint, handing-over and become end mode etc.) has very big difference to cause the networking cost of integral body to vary.These problems make FTTH's " last 100 meters " construction process slow.
Yet the intelligent grid notion provides new approaches for last 100 meters construction.The intelligent grid access network construction mainly uses OPLC (Optical Fiber Composite Low-Voltage Cable, Optical Fiber Composite low-voltage cable), a kind of composite cable with low-voltage power and optical communication duplicate transmissions ability.Itself has multi-core fiber OPLC, except electrical network optical communication self-demand, also can provide separate user's passage for telecommunications and radio and TV operator respectively.Therefore, OPLC optical fiber has been finished optical fiber and has been registered one's residence in cable laying, and its laying has been pushed ahead major step with the construction of " last hundred meters ", makes optical line terminal further close to the user.
The construction that national grid carries out PFTTM (Power Fiber To The Meters, optical fiber is to ammeter) mainly has following advantage.
At first, the backbone network of electric network information communication network capital construction finish.The long distance line optical cable of whole country electrical network can pass through OPGW (Optical Fiber Composite Overhead Ground Wire, Optical Fiber composite overhead Ground Wire) 220kV and the 110kV transformer station in each city and each administrative county in the whole nation covered in the mode classification, each (comprising quite zone, city) at county level electric company also can cover each small towns transformer station of (comprising quite zone, city) with the bridge optical cable or in OPPC (Opticalphase Conductor, a kind of novel optical cable) mode by distribution line.
Secondly, OPLC has finished optical fiber and the compound manufacturing of cable optical fiber and has registered one's residence in cable laying, greatly reduce the complexity of network and physical topology.PFTTH scheme and main flow FTTB (Fiber to The Building based on OPLC, Fiber-To-The-Building)+LAN (Local Area Network, local area network (LAN)) compares, only increase material cost less than 10%, can make integrated cost reduce about 40%, be the highest optical fiber of present cost performance " the last hundred meters " scheme of registering one's residence.
The 3rd, integrate power network resources, realize " Joint construction and sharing " of network infrastructure, can save resources such as a large amount of pipelines, metal, plastics, the masses of the interference community normal life of avoiding overlapping construction and causing.OPLC has significantly reduced the optical fiber cost of registering one's residence, and can bring into play the potentiality of xPON (mainly being meant GPON, EPON) the optical-fiber network framework of present main flow to greatest extent with this all-optical network of constructing.
But present PFTTH scheme also exists some problems not solve, mainly contain following some:
(1) EPON of GBit (Ethemet Passive Optical Network, Ethernet passive optical network) or GPON (Gigabit-Capable PON), its ONU (Optical Network Unit, optical node) generally can only ensure bandwidth, also be not enough to support simultaneously the above HDTV (HDTV (High-Definition Television)) of 2 covers for each household provides the minimum of 30Mbps.Even its minimum of 10GEPON ensures bandwidth or have ten multiplications long, still can not effectively support the video flowing of growing magnanimity.
(2) compare with covered wire cable, the pliability of OPLC is poor relatively, and its welding and installation technology require high.
(3) although the OPLC optical cable can be registered one's residence with the power line form, but still too forced, the implementation of engineering is general.
And wherein the most difficulty be, FTTH is the same with PFTTH, its popularize and widely application be faced with the problem of in user family, constructing, i.e. fiber to the desk all the time.Want the tame inner ply fiber the user, that not only will face the wish the problem whether user agrees, also will be faced with problems such as construction, cost, maintenance simultaneously.If use fuse machine user family's interior focusing fibre carry out hot joining to face so the construction site narrow and small, adjust situation such as inconvenience in the future, if use cold connector to carry out cold joint, face the too high situation of cold connector device cost so again.At these problems in the correlation technique, effective solution is not proposed as yet at present.
Summary of the invention
Registering one's residence at existing fiber, bandwidth can not effectively support growing data flow in the technology, the problem that OPLC mounting process difficulty and application property are not high, and this provides a kind of PFTTM service access system and method, to address the above problem.
According to an aspect of the present invention, a kind of PFTTM service access system is provided, comprise: SMS (Smart Meter Station, the intelligent electric meter work station), one or more PLA (Power Line Adaptor, the wideband power adapter), wherein, SMS, be used for receiving the data of OPLC, and above-mentioned data are coupled to family's power line network of registering one's residence; PLA is used for receiving above-mentioned data from family's power line network of registering one's residence, and above-mentioned data is sent to corresponding receiving equipment.
SMS comprises: bi-directional data optical fiber interface, bidirectional optical transceiver, bidirectional data exchange device, multiplexing demultiplexing device, power line modem, power line interface, wherein, the bi-directional data optical fiber interface, be connected to the optical fiber of transmission bi-directional data among the OPLC, be used to receive bi-directional data and be transmitted to bidirectional optical transceiver; Bidirectional optical transceiver is used for bi-directional data is converted to electrical data signal number also output; The bidirectional data exchange device is used for electrical data signal number is exchanged and exports; Multiplexing demultiplexing device is used to receive the electrical data signal number of bidirectional data exchange device exchange output, and this electrical data signal number is carried out multiple connection and output; Power line modem is used for the electrical data signal after the multiple connection number is converted to and meets the signal that power line transmits standard; Power line interface, be used for will meet the power line signal that transmits standard be sent to family's power line network of registering one's residence.
SMS also comprises: one-way data optical fiber interface, unidirectional optical receiver, one-way data interchanger, and wherein, the one-way data optical fiber interface is connected to the optical fiber of transfer of unidirectional data among the OPLC, is used to receive one-way data and is transmitted to unidirectional optical receiver; Unidirectional optical receiver is used for one-way data is converted to electrical data signal number also output; The one-way data interchanger is used for electrical data signal number is exchanged and export to multiplexing demultiplexing device.
Each output port configuration a multiplexing demultiplexing device, a power line modem and a power line interface for bidirectional data exchange device and one-way data interchanger.
SMS also comprises: the ammeter control interface, be connected to one or more electric supply meters, be used for the ammeter control information by bi-directional data fiber-optic signal interface, bidirectional optical transceiver and bidirectional data exchange device receiving front-end, the data message of real-time collection electric supply meter also is back to front end.
When electric supply meter when being a plurality of, SMS is by RS485 interface and a plurality of electric supply meter cascade.
SMS also comprises: network manager, be connected to bidirectional data exchange device and one-way data interchanger, and be used for setting, reading system running parameter, system is managed.
PLA comprises: power line port, power line modem, ether media access controller, ether physical layer converter, output interface, wherein, the power line port, be connected to family's power line network of registering one's residence, be used to receive SMS and be coupled to family's data of power line network of registering one's residence, and be forwarded to power line modem; Power line modem is used for data are converted to electrical data signal number also output; The ether media access controller is used for number isolating data and the output that belongs to local service from electrical data signal; The ether physical layer converter, the data transaction that is used for belonging to local service becomes the standard signal of the receiving equipment of this data correspondence; Output interface is used for above-mentioned standard signal is sent to corresponding receiving equipment.
Above-mentioned output interface is the RJ45 port.
According to a further aspect in the invention, provide a kind of PFTTM business access method, having comprised: SMS receives the data among the OPLC, and above-mentioned data are coupled to family's power line network of registering one's residence; PLA receives above-mentioned data from power line network is registered one's residence by family, and above-mentioned data are sent to corresponding receiving equipment.
By the present invention, employing is provided with SMS and PLA, utilize above-mentioned SMS and PLA to link up access device in fiber optic network and the subscriber household by family's power line network of registering one's residence, the scheme of transmission corresponding business data, solved existing fiber and registered one's residence that bandwidth can not effectively support growing data flow in the technology, the problem that OPLC mounting process difficulty and application property are not high, and then reached and provide comparable with existing FTTH, and even wideer data flow inserts, support three network services to merge, in the user's position realization broadband access that the power supply supply is arranged arbitrarily of portion within the family and the effect of home entertaining business.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structured flowchart according to the PFTTM service access system of the embodiment of the invention;
Fig. 2 is the structured flowchart of SMS according to the preferred embodiment of the invention;
Fig. 3 is the structured flowchart of PLA according to the preferred embodiment of the invention;
Fig. 4 is the overall structure schematic diagram of the PFTTM connecting system of the example according to the present invention;
Fig. 5 is the structured flowchart of the PFTTM connecting system of the example according to the present invention;
Fig. 6 is the webmaster of the example according to the present invention and the schematic diagram of the data flow that ammeter is controlled;
Fig. 7 is the application scenarios schematic diagram of the PFTTM connecting system of the example according to the present invention;
Fig. 8 is the flow chart according to the PFTTM business access method of the embodiment of the invention.
Embodiment
Hereinafter will describe the present invention with reference to the accompanying drawings and in conjunction with the embodiments in detail.Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 1 is the structured flowchart according to the PFTTM service access system of the embodiment of the invention.As shown in Figure 1, comprise according to the PFTTM service access system of the embodiment of the invention: SMS12, PLA14 (can in the present embodiment be one) for one or more, wherein,
SMS12 is used for receiving the data of OPLC, and these data are coupled to family's power line network of registering one's residence;
PLA14 is used for receiving above-mentioned data from family's power line network of registering one's residence, and above-mentioned data is sent to corresponding receiving equipment.
In the present embodiment, because PFTTM does not have optical fiber to register one's residence, but fiber-to-the-home ammeter outdoors, therefore PFTTM does not need to realize in the family the laying of optical fiber, need not the complicated construction technology and the expensive device such as cold connector, fast fibre connector such as quick termination of mechanically splicing optical fiber, optical fiber splice, lower the construction cost of the SMS system of PFTTM greatly, and made the maintenance of SMS and maintenance become simple.
And, because data only transmit in this scope of family, the problems of power line data transmission applications, not enough as bandwidth, problems such as reflection interference noise become and are easy to solve, and the power line network advantage such as the widest, easy-to-use that distributes then shows out.The more important thing is and do not adopt optical fiber to register one's residence, but adopted the necessary power line of huge numbers of families to realize broadband access that the problem that the difficulty that does not exist other networks to register one's residence maybe can not insert has reduced the resistance that the building is gone in construction effectively.
In addition, the headend equipment SMS of PFTTM is together integrated with access technology and digital home network technological synthesis, and the characteristics of power communication and network thereof have been showed in perfection.Power line household network technology (promptly linking up each receiving equipment in fiber optic network and the subscriber household by family's power line network of registering one's residence) makes the user realize broadband access easily, easily by PLA in any one position in the family, do not need to lay new cable at home, Access Network and digital home network have organically been unified.
It is diversified that SMS is coupled to the register one's residence mode of power line network of family with the data among the OPLC, and this preferred embodiment provides a kind of SMS structure preferably, to realize this coupling function.Preferably, as shown in Figure 2, SMS12 may further include: bi-directional data optical fiber interface 1202, bidirectional optical transceiver 1204, bidirectional data exchange device 1206, multiplexing demultiplexing device 1208, power line modem 1210, power line interface 1212, wherein,
Bi-directional data optical fiber interface 1202 is connected to the optical fiber that transmits bi-directional data among the OPLC, is used to receive bi-directional data and is transmitted to bidirectional optical transceiver 1204;
Bidirectional optical transceiver 1204 is used for above-mentioned bi-directional data is converted to electrical data signal number also output;
Bidirectional data exchange device 1206 is connected to bidirectional optical transceiver 1204, is used for above-mentioned electrical data signal number is exchanged and exports;
Preferably, as shown in Figure 2, SMS12 can also comprise: one-way data optical fiber interface 1214, unidirectional optical receiver 1216, one-way data interchanger 1218, wherein,
One-way data optical fiber interface 1214 is connected to the optical fiber of transfer of unidirectional data among the OPLC, is used to receive above-mentioned one-way data and is transmitted to unidirectional optical receiver 1216;
Unidirectional optical receiver 1216 is used for above-mentioned one-way data is converted to electrical data signal number also output;
One-way data interchanger 1218 is connected to unidirectional optical receiver 1216, is used for above-mentioned electrical data signal number is exchanged and export to multiplexing demultiplexing device 1208.
Itself has multi-core fiber OPLC, except electrical network optical communication self-demand, also can provide separate user's passage for telecommunications and radio and TV operator respectively, corresponds respectively to above-mentioned bi-directional data and one-way data.In specific implementation process, corresponding SMS can be set according to different needs, make SMS only support bi-directional data or only support one-way data, preferably mode still makes SMS support bi-directional data and one-way data simultaneously certainly.
The SMS that this preferred embodiment provides can make full use of the multi-core fiber in the OPLC cable, utilizes two optical fiber wherein, a carrier as the EPON technology, realize the two-way broadband data to the ammeter group; Another root then is used as the descending transmission of ether TV data.The binary channels access module of this multicast+clean culture is better than the FTTH pattern of classical xPON on performance, and meets the business development demand of the integration of three networks more.The descending TV data service that wherein occupies the access network maximum bandwidth transmits via an independent optical-fibre channel, not only can provide the digital cable TV service for the user glibly, avoided simultaneously and the competition of voice, data two-way interactive business such as (comprising program request), thereby can provide data, services efficiently for the user to bandwidth.
In this preferred embodiment, SMS supports gigabit bi-directional data and gigabit unidirectional (video) data to be inserted by two optical fiber among the OPLC, can support a plurality of domestic consumers, can be each domestic consumer average access bandwidth above 100Mbps is provided.Though data stream bandwidth is less than the flow of cable TV broadband access network 6G, but have following advantage: the all-IPization of (1) data makes the networking technology of PFTTM simple more and unified, meet the technological accumulation of power telecom network more, and the existing IP technology by means of a large amount of can realize the maintenance of system easily and effectively; (2) construction cost of structure IP broadcast or multicast channel will be far below RF/QAM (the Quadrature Amplitude Modulation of present Digital Television, digital modulator) construction of passage does not need the QAM modulator, inserts optical transmitter and a large amount of equipment such as edge QAM modulator.
In various FTTH patterns, its cost structure was after optical fiber was registered one's residence: ODN (optical distribution network, optical cable wiring) account for the 15-20% of total cost, the xPON system accounts for 50-60%, and broadcasting (RF/QAM in the cable television network) or IP multi-cast system account for 25-30%.In this preferred embodiment, the ONU of the required usefulness of each household and the optical receiver of multicast or broadcasting have been moved on among the SMS, the fiber-to-the-home door makes the one-tenth instinct of 85-80% be shared by how tame user, has reduced the cost of FTTH extremely effectively.Simultaneously, PFTTM adopts dual channel mode, and OLT (Optical Line Terminal, the optical fiber cable termination equipment) quantity of xPON is effectively reduced, and relatively saves more costs with traditional F TTH.
Preferably, each output port for bidirectional data exchange device 1206 and one-way data interchanger 1218 disposes a multiplexing demultiplexing device, a power line modem and a power line interface.
In above-mentioned preferred enforcement, multiplexing demultiplexing device 1208 among the SMS12, power line modem 1210 and power line interface 1212 are public by bidirectional data exchange device 1206 and one-way data interchanger 1218, and what each output port of bidirectional data exchange device 1206 and one-way data interchanger 1218 used all is same set of multiplexing demultiplexing device, power line modem and power line interface.In this preferred embodiment, for each port of bidirectional data exchange device 1206 and one-way data interchanger 1218 all is provided with cover multiplexing demultiplexing device, power line modem and a power line interface, thereby can significantly improve the operating efficiency of system, but corresponding cost increases to some extent.
Preferably, SMS can further include: the ammeter control interface, be connected to one or more electric supply meters, be used for the ammeter control information by bi-directional data fiber-optic signal interface, bidirectional optical transceiver and bidirectional data exchange device receiving front-end, the data message of the real-time above-mentioned electric supply meter of collection also is back to front end.
Long-rangely make a copy for and control what SMS increased that above-mentioned ammeter control interface can realize ammeter simultaneously, thereby build intelligent grid (Smart Grid).
Preferably, when electric supply meter when being a plurality of, SMS can pass through RS485 interface and above-mentioned a plurality of electric supply meter cascade.
Preferably, SMS can also comprise: network manager, be connected to bidirectional data exchange device and one-way data interchanger, and be used for setting, reading system running parameter, system is managed.
Network manager has increased whole connecting system application flexibility and the property monitored, and makes a PFTTM service access system can tackle multiple different situation, and the running status of reponse system when needed.The setting of concrete running parameter can be provided with according to concrete applicable cases.
Preferably, as shown in Figure 3, PLA14 may further include: power line port one 402, power line modem 1404, ether MAC (Media Access Control, medium access control) device 1406, ether physical layer (PHY) transducer 1408, output interface 1410, wherein
Power line port one 402 is connected to family's power line network of registering one's residence, and is used to receive SMS12 and is coupled to family's data of power line network of registering one's residence, and be forwarded to modulator-demodulator 1404;
Power line modem 1404 is used for above-mentioned data are converted to electrical data signal number also output;
Ether media access controller 1406 is connected to power line modem 1404, is used for number isolating data and the output that belongs to local service from above-mentioned electrical data signal;
Ether physical layer converter 1408 is connected to ether media access controller 1406, is used for the above-mentioned data transaction that belongs to local service is become the standard signal of the receiving equipment of this data correspondence;
This preferred embodiment provides a kind of preferably PLA structure, SMS can be coupled to register one's residence data in the power line network of family by above-mentioned PLA, is reduced to the discernible data mode of corresponding reception device and finally offers this receiving equipment.
Preferably, output interface 1410 can be the RJ45 port.
Below in conjunction with example above preferred embodiment is elaborated.
The overall structure of the PFTTM connecting system of example can be supported multiple network such as Intemet network, telephone network, intelligent grid and cable TV network as shown in Figure 4 according to the present invention.Its concrete structure as shown in Figure 5, OPLC links to each other with the descending video data optical fiber interface of 10Gbit (one-way data optical fiber interface) with EPON user side optical fiber interface (bi-directional data optical fiber interface) among the SMS, access in order to the downlink broadcast business of the access that realizes the wide-band bidirectional data and wideband video exchanges to certain corresponding multiplexing demultiplexing device by list/bidirectional data exchange device with same user's data again and realizes professional converging.Business after converging is admitted to corresponding power line modem, is converted into the power line transmission signal of standard, by the power line port output of correspondence.The data-signal of output is then delivered to the PLA that each room links to each other with supply socket by the household internal power line network.PLA isolates local data from the signal of receiving, deliver to corresponding data terminal equipment, as television set, sound equipment or computer etc.
And on up direction, the various data-signals that the user sends flow to the power line modem of work station SMS by power line, restore data-signal, straight-through through multiplexing demultiplexing device, the upstream data. signals that receives is sent into the bidirectional data exchange device.The bidirectional data exchange device reads all users' upstream data and ammeter and the control information multiple connection, pool high data rate bit stream, be modulated on the light wave by bidirectional optical transceiver, send into the front end OLT that is uploaded to EPON in the optical fiber of OPLC by the bi-directional data optical fiber interface again.
Can realize multiple services broadband access based on above-mentioned PFTTM service access system, comprise the access of wide-band bidirectional data, broadband downstream video IP data and intelligent grid business.
As shown in Figure 5, SMS has a plurality of power line output ports, a GE bi-directional data optical fiber interface, GE unidirectional (descending) data optical fiber interface and an ammeter control interface in this example.SMS also comprises bidirectional optical transceiver, unidirectional optical transceiver, network manager, bidirectional data exchange device, unidirectional (video) data exchange unit, multiplexing demultiplexing device group, and power line modem group, power line interface group.The bi-directional data signal is sent into SMS by an optical fiber among the OPLC, through the bi-directional data optical fiber interface, receives and be converted to electrical data signal number by bidirectional optical transceiver; And ether multicast TV data is sent into SMS via another root optical fiber of OPLC, through the one-way data optical fiber interface, receives and be converted to the signal of telecommunication by unidirectional optical transceiver.Two kinds of data are sent into list/bidirectional data exchange device respectively, and exchange exports multiplexing demultiplexing device to, and multiplexing demultiplexing device is output as the downlink data of two-way access service and the multiple connection of one-way video data.Data-signal after the multiple connection converts to via the broadband power line modem and meets the signal that power line transmits standard, is exported by power line interface.In this example, the port number of list/bidirectional data exchange device is consistent with the number of power line modem number, signal multiplexing/demodulation multiplexer and power line interface.
As shown in Figure 5, each PLA inside includes in this example: a power line modem, an ether MAC device and an ether PHY transducer.External interface comprises a RJ45 network data interface and a power line port, and the power line port is simultaneously as the power port of wideband power adapter and the data-interface of power line.The power line port links to each other with supply socket, and reception is by the power line transmission signal of SMS transmission, send into power line modem output electrical data signal number, deliver to ether MAC device then, taking-up belongs to the data of local service, converting the corresponding standard signal to through ether PHY transducer is again sent to corresponding user data equipment, as sound equipment, television set or apparatus such as computer by the RJ45 port.
This example is the multiport application model, and promptly to be that institute of many families family is common use for SMS, and the power line port of each SMS and a user's the ammeter port of registering one's residence links.SMS again simultaneously as the switching equipment of multi-user's Access Network and the server of home network, realizes that the broadband access of a plurality of families and the multi-service of each household internal insert both as EPON network of network terminal equipment simultaneously.
As shown in Figure 5, for work station SMS and the ustomer premises access equipment PLA management that realizes the FPTTM system, and to the Based Intelligent Control of ammeter, SMS is provided with a network manager, an ammeter control interface, network manager is connected with list/bidirectional data exchange device, and the ammeter control interface is connected with the bidirectional data exchange device.As shown in Figure 6, the webmaster flow process is: the management end of network management system is realized and the agent communication of SMS by snmp protocol, and system is carried out reading of parameter setting and information, and SMS is by parameter setting and the read-write of OAM message realization to PLA.SMS sends or receives network management information by OAM message to the OLT front end.As shown in Figure 6, the ammeter control flow is: the ammeter control information of front end, receive by bidirectional optical transceiver to the bi-directional data optical fiber interface through the bi-directional data optical-fibre channel, and send into the bidirectional data exchange device, exchange exports the ammeter control port to.SMS realizes the cascade of each electric supply meter by the RS485 interface, by the information that the ammeter control port is gathered electric supply meter in real time, be stored in the memory of SMS, and by the bidirectional data exchange device, converge forward end passback ammeter data information with uplink user data.
Fig. 7 is the application scenarios schematic diagram of the PFTTM connecting system of the example according to the present invention, and the concrete application scenarios of this example as shown in Figure 7.
Fig. 8 is the flow chart according to the PFTTM business access method of the embodiment of the invention.As shown in Figure 8, the PFTTM business access method according to the embodiment of the invention comprises:
Step S802, SMS receive the data among the OPLC, and above-mentioned data are coupled to family's power line network of registering one's residence;
Step S804, PLA receives above-mentioned data from power line network is registered one's residence by family, and above-mentioned data are sent to corresponding receiving equipment.
The method that present embodiment provides does not use optical fiber to register one's residence, but fiber-to-the-home ammeter outdoors, therefore do not need to realize in the family the laying of optical fiber, need not complicated construction technology and expensive equipment, lowered the construction cost of system greatly, and make maintenance and maintenance become simple.
Simultaneously, the method that present embodiment provides has shown the power line network advantage such as the widest, easy-to-use that distributes, the more important thing is and do not adopt optical fiber to register one's residence, but realized broadband access with the necessary power line of huge numbers of families, the problem that the difficulty that does not exist other networks to register one's residence maybe can not insert has reduced the resistance that the building is gone in construction effectively.
And, the method that present embodiment provides is together integrated with access technology and digital home network technological synthesis, the characteristics of power communication and network thereof have been showed in perfection, power line household network technology (promptly linking up each receiving equipment in fiber optic network and the subscriber household by family's power line network of registering one's residence) makes the user realize broadband access easily, easily by PLA in any one position in the family, do not need to lay new cable at home, Access Network and digital home network have organically been unified.
As can be seen from the above description, technical scheme provided by the invention utilizes OPLC to realize fiber-to-the-floor ammeter box group, shares an optical node with a plurality of users of floor; Avoided the inconvenience of the cable wiring manufacture that optical fiber registers one's residence; Realized an optical node Gbit bi-directional data, the binary channels optical node of Gbit one-way video data inserts, and user's access bandwidth surpasses 100Mbps, can provide comparable with existing FTTH, and even wideer data flow inserts; The multi-service that has realized bi-directional data traffic, broadband video service and intelligent grid management service inserts, and broadband access system and digital home network and intelligent grid data service good combination can be supported the broadband data network that three network services merge; Organically combine the home networking technology, can support the user to realize broadband access and home entertaining business in the position that has power supply to supply with arbitrarily of portion within the family; Separate between the PFPTTM system user port, guaranteed safety of user information and privacy; Port can effectively user-isolated inside and outside loop, has improved the reliability of network.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with the general calculation device, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation element forms, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and carry out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into each integrated circuit modules respectively, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. an optical fiber is characterized in that to ammeter PFTTM service access system, comprising: intelligent electric meter work station SMS, one or more wideband power adapter PLA, wherein,
Described SMS is used for receiving the data of Optical Fiber Composite low-voltage cable OPLC, and described data are coupled to family's power line network of registering one's residence;
Described PLA is used for receiving described data from the described family power line network of registering one's residence, and described data is sent to corresponding receiving equipment.
2. system according to claim 1 is characterized in that, described SMS comprises: bi-directional data optical fiber interface, bidirectional optical transceiver, bidirectional data exchange device, multiplexing demultiplexing device, power line modem, power line interface, wherein,
Described bi-directional data optical fiber interface is connected to the optical fiber that transmits bi-directional data among the described OPLC, is used to receive described bi-directional data and is transmitted to described bidirectional optical transceiver;
Described bidirectional optical transceiver is used for described bi-directional data is converted to electrical data signal number also output;
Described bidirectional data exchange device is used for described electrical data signal number is exchanged and exports;
Described multiplexing demultiplexing device is used to receive the electrical data signal number of described bidirectional data exchange device exchange output, and this electrical data signal number is carried out multiple connection and output;
Described power line modem is used for the electrical data signal after the multiple connection number is converted to and meets the signal that power line transmits standard;
Described power line interface is used for meeting signal that power line transmits standard and being sent to the described family power line network of registering one's residence described.
3. system according to claim 2 is characterized in that, described SMS also comprises: one-way data optical fiber interface, unidirectional optical receiver, one-way data interchanger, wherein,
Described one-way data optical fiber interface is connected to the optical fiber of transfer of unidirectional data among the described OPLC, is used to receive described one-way data and is transmitted to described unidirectional optical receiver;
Described unidirectional optical receiver is used for described one-way data is converted to electrical data signal number also output;
Described one-way data interchanger is used for described electrical data signal number is exchanged and export to described multiplexing demultiplexing device.
4. system according to claim 3, it is characterized in that, be each output port configuration a described multiplexing demultiplexing device, a described power line modem and described power line interface of described bidirectional data exchange device and described one-way data interchanger.
5. system according to claim 2 is characterized in that, described SMS also comprises:
The ammeter control interface, be connected to one or more electric supply meters, be used for the ammeter control information by described bi-directional data fiber-optic signal interface, described bidirectional optical transceiver and described bidirectional data exchange device receiving front-end, the data message of the real-time described electric supply meter of collection also is back to front end.
6. system according to claim 5 is characterized in that, when described electric supply meter when being a plurality of, described SMS is by RS485 interface and described a plurality of electric supply meter cascade.
7. system according to claim 3 is characterized in that, described SMS also comprises:
Network manager is connected to described bidirectional data exchange device and described one-way data interchanger, is used for setting, reading system running parameter, and system is managed.
8. system according to claim 1 is characterized in that, described PLA comprises: power line port, power line modem, ether media access controller, ether physical layer converter, output interface, wherein,
Described power line port is connected to the described family power line network of registering one's residence, and is used to receive described SMS and is coupled to the described family data of power line network of registering one's residence, and be forwarded to described power line modem;
Described power line modem is used for described data are converted to electrical data signal number also output;
Described ether media access controller is used for number isolating data and the output that belongs to local service from described electrical data signal;
Described ether physical layer converter is used for the described data transaction that belongs to local service is become the standard signal of the receiving equipment of this data correspondence;
Described output interface is used for described standard signal is sent to corresponding receiving equipment.
9. system according to claim 8 is characterized in that, described output interface is the RJ45 port.
10. an optical fiber is characterized in that to ammeter PFTTM business access method, comprising:
Receive data among the Optical Fiber Composite low-voltage cable OPLC by intelligent electric meter work station SMS, and described data are coupled to family's power line network of registering one's residence;
Wideband power adapter PLA receives described data from power line network is registered one's residence by described family, and described data are sent to corresponding receiving equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102732621A CN102291285A (en) | 2011-09-15 | 2011-09-15 | PFTTM (Passive optical network Fiber to the Home) service access system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102732621A CN102291285A (en) | 2011-09-15 | 2011-09-15 | PFTTM (Passive optical network Fiber to the Home) service access system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102291285A true CN102291285A (en) | 2011-12-21 |
Family
ID=45337405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102732621A Pending CN102291285A (en) | 2011-09-15 | 2011-09-15 | PFTTM (Passive optical network Fiber to the Home) service access system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102291285A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187989A (en) * | 2011-12-29 | 2013-07-03 | ***通信集团广东有限公司 | Home-entry power line adapter and communication system and method based on power line |
| WO2014173354A1 (en) * | 2013-08-16 | 2014-10-30 | 中兴通讯股份有限公司 | Home network communication method and system, plc device and storage medium |
| CN104378269A (en) * | 2014-12-10 | 2015-02-25 | 刘丽新 | Optic fiber broadband access method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848826A (en) * | 2006-04-30 | 2006-10-18 | ***通信集团公司 | Family gateway equipment |
| CN1874474A (en) * | 2006-06-28 | 2006-12-06 | ***通信集团公司 | Equipment of TV set |
| CN201937582U (en) * | 2010-12-31 | 2011-08-17 | 深圳市天益光纤通信技术有限公司 | Power line communication device combined with PON technology |
| 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 |
-
2011
- 2011-09-15 CN CN2011102732621A patent/CN102291285A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1848826A (en) * | 2006-04-30 | 2006-10-18 | ***通信集团公司 | Family gateway equipment |
| CN1874474A (en) * | 2006-06-28 | 2006-12-06 | ***通信集团公司 | Equipment of TV set |
| 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 |
| CN201937582U (en) * | 2010-12-31 | 2011-08-17 | 深圳市天益光纤通信技术有限公司 | Power line communication device combined with PON technology |
Non-Patent Citations (1)
| Title |
|---|
| 薛智谊 等: "宁波将试点电力线上网；http://nb.people.com.cn/GB/200881/14171600.html", 《人民网》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187989A (en) * | 2011-12-29 | 2013-07-03 | ***通信集团广东有限公司 | Home-entry power line adapter and communication system and method based on power line |
| WO2014173354A1 (en) * | 2013-08-16 | 2014-10-30 | 中兴通讯股份有限公司 | Home network communication method and system, plc device and storage medium |
| CN104378269A (en) * | 2014-12-10 | 2015-02-25 | 刘丽新 | Optic fiber broadband access method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101882960B (en) | Point-to-multi-point two-way optical fiber coaxial mixed full-service broadband access system | |
| CN101364914B (en) | Coaxial cable access and networking method based on HFC network | |
| CN103763161A (en) | Tri-network integration access module and control method thereof | |
| CN102263593A (en) | FTTH (fiber to the home)-based energy efficiency intelligent management and broadband access system and method | |
| CN102082714B (en) | EPON (Ethernet passive optical network) device containing power carrier module and signal transmission method thereof | |
| CN204993716U (en) | Novel wavelength devision multiplex integration of three networks system that fiber to home | |
| CN102291285A (en) | PFTTM (Passive optical network Fiber to the Home) service access system and method | |
| CN1747363A (en) | Optical fiber network system at user dwelling place based on open inserting | |
| CN101312449B (en) | Synthetic access equipment | |
| CN106685481A (en) | Communication coding system and method based on optical fibers and power lines | |
| CN204069231U (en) | A kind of intelligent residential district power optical fiber household-entry system | |
| CN201100951Y (en) | Integrated access device | |
| CN203027261U (en) | Optical transmission system | |
| CN101951352A (en) | Cable television integrated gateway | |
| CN102223366A (en) | Multimedia advertisement propelling system and method thereof based on power utilization information acquisition system | |
| CN209497462U (en) | A kind of single fiber nets isolation access device more | |
| CN202094928U (en) | Multimedia advertising recommending system based on electricity information acquisition system | |
| CN102594407B (en) | Networking framework of three-network access community based on PLC technology | |
| CN101478504A (en) | Multimedia house gateway for implementing conversion between signals of optical cable and coaxial electric cable | |
| CN110381390A (en) | A kind of Intelligent Fusion device and its application method based on 10G-PON access | |
| CN108712194A (en) | A kind of communication coding system and method based on optical fiber and power line | |
| CN203761398U (en) | FTTH (Fiber To The Home) extension equipment suitable for point-to-point axial access | |
| KR19990046136A (en) | Internet Subscriber Network | |
| CN101026420B (en) | Method and system for solving FTTP safety problem | |
| CN201467347U (en) | Wideband access system based on coaxial network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| ASS | Succession or assignment of patent right |
Owner name: SHANGHAI ZHONGXING SIJIE COMMUNICATION CO., LTD. Free format text: FORMER OWNER: ZTE CORPORATION Effective date: 20131217 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 518057 SHENZHEN, GUANGDONG PROVINCE TO: 201620 SONGJIANG, SHANGHAI |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20131217 Address after: Songjiang District Wen Xiang Road 201620 Shanghai City No. 2200 Building 8 Room 407 4 Applicant after: Shanghai Zhongxing Sijie Communication Co., Ltd. Address before: 518057 Nanshan District science and technology, Guangdong Province, South Road, No. 55, No. Applicant before: ZTE Corporation |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111221 |