CN101110726A - Area summarized information access system - Google Patents
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- CN101110726A CN101110726A CNA2007100299526A CN200710029952A CN101110726A CN 101110726 A CN101110726 A CN 101110726A CN A2007100299526 A CNA2007100299526 A CN A2007100299526A CN 200710029952 A CN200710029952 A CN 200710029952A CN 101110726 A CN101110726 A CN 101110726A
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Abstract
The present invention provides a regional comprehensive information access system, which comprises a comprehensive information access device and a user terminal information device; an Ethernet wave coupling device module and a network management module are arranged in the comprehensive information access device, one or more Ethernet wave coupling device(s) are contained in the Ethernet wave coupling device, and an Ethernet wave coupling device is contained in the user terminal information device; the mixed signal interface of the Ethernet wave coupling device in the user terminal information device are connected with the mixed signal interface of the corresponding Ethernet wave coupling device in the comprehensive information access device through a coaxial cable. The present invention can process the data signal and the television signal to form a data / television mixed signal, the signal is transmitted to the user through a coaxial cable, the television signal and the data signal are separated at the user terminal, and the data signal and the television signal are not affected during the transmission; the funnel effect can be effectively eliminated; the maintenance is easy, and convenient; and the present invention has a perfect network management function.
Description
Technical field
The present invention relates to the wire signal transmission system, specifically, relate to and cable TV signal and data-signal can be mixed and be transferred to the user by same coaxial cable, and at user terminal with cable TV signal and data-signal separate areas summarized information access system, this area summarized information access system is applicable to that the integrated information in zone such as sub-district, building inserts.
Background technology
At present, it is hfc plant that TV and Radio Service is used for the cable TV network of transmitting television signals (genus one-way transmission), the hybrid network that hfc plant is made up of optical fiber and coaxial cable, decline along with the optical fiber price, a lot of local television network broadcasts have arrived the sub-district with optical fibre installation, even have arrived building or unit.
TV and Radio Service is in order to carry out two-way services, must build two-way broadband network or existing hfc plant is carried out bidirectional rebuilding, make data-signal and TV signal all can enter user's family by coaxial cable, data-signal is separated with TV signal and be delivered to data terminal and television set respectively at user's family, and the user data terminal can be uploaded data by coaxial cable.
Main now Cable Modem Terminal System (Cable Modem TerminalSystem is called for short CMTS) and the cable modem (Cable Modem is called for short CM) of adopting by the HFC bilateral network, realized transfer of data.CMTS mixes with TV RF signals after converting downlink data signal to the data radiofrequency signal, mixed signal is after optical sender converts light signal to, arrive optical receiver through Optical Fiber Transmission, optical receiver converts light signal to radiofrequency signal, through the radiofrequency signal port, branch distributor, coaxial cable is sent to a plurality of user's familys, the shared optical receiver of a plurality of users (the radiofrequency signal port that is optical receiver is connected with a plurality of users through coaxial cable), be transported to computer after the CM that is installed in user's family converts the data radiofrequency signal that receives to ethernet signal, TV RF signals then is delivered directly to television set; The upstream data. signals of computer converts the data radiofrequency signal to through CM, transfer to optical receiver through coaxial cable, be provided with the backlight transmitter module in the optical receiver, convert the data radiofrequency signal to light signal, light signal through up Optical Fiber Transmission to returning optical receiver, the passback optical receiver converts light signal to the data radiofrequency signal, and the data radiofrequency signal is transported to CMTS, is converted to by CMTS and continues upwards transmission behind the data-signal.The shortcoming that this network exists mainly contains: because CMTS is relatively more expensive, and therefore usually a lot of shared CMTS of user, the bandwidth that can enjoy of each user is just quite little like this; CMTS and CM (each user needs a CM) compare expensive, so networking cost of investment height; When the user uploaded data, the noise that each user is transmitted produced great noise (i.e. " funneling effect ") at signal gathering point; Because a lot of shared CMTS of user when certain subscriber equipment breaks down, must investigate one by one, maintenance difficulties is big.
Summary of the invention
Because EPON (based on the EPON of Ethernet mode) self has tree (this tree is identical with hfc plant), long-distance transmissions, centre and does not have inherent advantages such as active equipment, installation and maintenance be simple and convenient, therefore adopt EPON that existing unidirectional hfc plant is transformed into bilateral network, to realize carrying out of two-way services.
Technical problem to be solved by this invention provides a kind of area summarized information access system, this area summarized information access system is applicable to and adopts EPON to transform unidirectional hfc plant, it is the part of improved bilateral network, be applicable to the sub-district, the integrated information in zone such as building inserts, it forms data/TV mixed signal after treatment with data-signal and the TV signal that receives, data/TV mixed signal is transferred to the user by a coaxial cable, and cable TV signal is separated with data-signal at user terminal, data-signal and TV signal are independent of each other in the transmission course, and each user is connected with comprehensive information access device by a transmission lines separately, the bandwidth that the user can enjoy is big, when uploading data, the user can not produce the noise collection effect phenomenon, and easy to maintenance, and has perfect Network Management Function.The technical scheme that adopts is as follows:
A kind of area summarized information access system comprises comprehensive information access device and user terminal information device;
Wherein comprehensive information access device comprises:
(1) passive optical network unit data module converts the downlink data light signal data ethernet signal to and is transferred to switch module, will convert the data light signal to from the upstream data ethernet signal of switch module and uploads;
(2) switch module, the data ethernet signal from the passive optical network unit data module distributed exchange after, be transferred to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module; After handling, be transferred to the passive optical network unit data module from the upstream data ethernet signal of Ethernet wave multiplexer module;
(3) TV signal receives and processing module, and after the TV signal that receives was handled, the output TV RF signals was to distributor;
(4) distributor after the TV RF signals distribution that receives, is transferred to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module;
(5) Ethernet wave multiplexer module, it comprises one or more Ethernet wave multiplexers, the Ethernet wave multiplexer will mix from the data ethernet signal of switch module with from the TV RF signals of distributor, and the data that obtain after will mixing/TV mixed signal transfers to the user terminal information device through coaxial cable; To be transferred to switch module from the upstream data ethernet signal of user's end message device;
(6) network management module is monitored and is managed TV signal reception and processing module and power module, and the information that monitors is uploaded by switch module, passive optical network unit data module; The network management signals that reception passes down through passive optical network unit data module, switch module, and TV signal reception and processing module and power module carried out network management;
(7) power module is for comprehensive information access device provides working power;
Wherein the user terminal information device comprises an Ethernet wave multiplexer, and this Ethernet wave multiplexer will be separated into data ethernet signal and TV RF signals from the data/TV mixed signal of coaxial cable, flow to data terminal and television set respectively; To be transferred to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module through coaxial cable from the upstream data ethernet signal of data terminal.
The passive optical network unit data module has optical signal interface and ethernet signal interface, and its optical signal interface is used for input, dateout light signal; Its ethernet signal interface is used for input, dateout ethernet signal, and this ethernet signal interface connects the data-interface of corresponding Ethernet wave multiplexer through switch module.Usually be provided with optical transceiver and the inner exchanging machine that connects successively in the passive optical network unit data module, optical transceiver has optical signal interface (this optical signal interface is the optical signal interface of passive optical network unit data module) and ethernet signal interface, the ethernet signal interface of optical transceiver connects inner exchanging machine corresponding interface, and the inner exchanging machine also has a plurality of ethernet signal interfaces (the ethernet signal interface that these a plurality of ethernet signal interfaces are passive optical network unit data modules).An ethernet signal interface of above-mentioned passive optical network unit data module connects the switch module in this comprehensive information access device, all the other ethernet signal interfaces can connect the switch module in other comprehensive information access device that does not have the passive optical network unit data module, like this, can increase the access customer number amount by increasing the comprehensive information access device that does not have the passive optical network unit data module.The passive optical network unit data module also can only be provided with optical transceiver, and optical transceiver has optical signal interface (this optical signal interface is the optical signal interface of passive optical network unit data module) and ethernet signal interface (the ethernet signal interface that this ethernet signal interface is the passive optical network unit data module).Optical transceiver is through its optical signal interface downlink data receiving light signal, and converts the downlink data light signal to the data ethernet signal, exports inner exchanging machine or switch module to through its ethernet signal interface; Optical transceiver is through the upstream data ethernet signal of its ethernet signal interface input from inner exchanging machine or switch module, and converts the upstream data ethernet signal to the data light signal, uploads through its optical signal interface.The passive optical network unit data module will convert the data ethernet signal to from the downlink data light signal of optical signal interface input, be transferred to switch module, input to data-interface corresponding in the Ethernet wave multiplexer module after switch module distributes.
Switch module exports data-interface corresponding the Ethernet wave multiplexer module to from corresponding interface after receiving the data ethernet signal and distributing exchange to handle.Switch module is made up of administrative center and interface, and administrative center's control and management enters the data of each interface, and safeguards the physical address form of each interface of coming in and going out in its inside.After data entered switch from certain interface, administrative center was according to entering the physical address information that carries in the data, and contrast physics address form allows data go out from the interface of correspondence.
TV signal receives and processing module is divided two kinds of cable TV Optical Receivers and radio frequency signal amplifiers modules.
Be provided with optical receiver and radio frequency signal amplifiers in the cable TV Optical Receivers, the optical signal interface of optical receiver is the optical signal interface of cable TV Optical Receivers, the radiofrequency signal output interface of optical receiver connects the radiofrequency signal input interface of radio frequency signal amplifiers, the radiofrequency signal output interface of radio frequency signal amplifiers (the radiofrequency signal output interface that this radiofrequency signal output interface is the cable TV Optical Receivers) connects the radio frequency interface of Ethernet wave multiplexer module through distributor, the optical receiver of cable TV Optical Receivers will convert TV RF signals to from the TV light signal of optical signal interface input, after radio frequency signal amplifiers amplifies, after distributing, distributor inputs to radio frequency interface corresponding in the Ethernet wave multiplexer module.In a scheme, optical signal interface in the cable TV Optical Receivers connects the TV signal input optical fibre, optical signal interface in the passive optical network unit data module connects data optical fiber, and TV light signal and data light signal transmit in TV signal input optical fibre and data optical fiber respectively.In another program, the optical signal interface in the cable TV Optical Receivers is connected same optical fiber with optical signal interface in the passive optical network unit data module through light wavelength division multiplexing, and TV light signal and data light signal transmit in this same optical fiber.
Be provided with radio frequency signal amplifiers in the radio frequency signal amplifiers module, the radiofrequency signal input interface of radio frequency signal amplifiers (the radiofrequency signal input interface that this radiofrequency signal input interface is the radio frequency signal amplifiers module) connects TV signal input cable, the radiofrequency signal output interface of radio frequency signal amplifiers (the radiofrequency signal output interface that this radiofrequency signal output interface is the radio frequency signal amplifiers module) connects corresponding radio frequency interface in the Ethernet wave multiplexer module through distributor, radio frequency signal amplifiers in the radio frequency signal amplifiers module will input to radio frequency interface corresponding in the Ethernet wave multiplexer module after will importing the TV RF signals amplification of cable from TV signal after distributor distributes.
Dispenser module is made up of the signal divider, and these dividers carry out five equilibrium to signal.After TV signal enters distributor from input interface, according to the number of divider with signal halves, then from all output interface output.
Be provided with one or more Ethernet wave multiplexer modules in the comprehensive information access device, comprise an Ethernet wave multiplexer (single-port ethernet wave multiplexer module) or a plurality of Ethernet wave multiplexer (multiport Ethernet wave multiplexer module) in the Ethernet wave multiplexer module.Ethernet wave multiplexer (Ethernet Over Cable is called for short EOC) also is the coaxial cable wave multiplexer, is a passive device.The concrete structure of Ethernet wave multiplexer is, be provided with data-interface, balance/nonbalance converter, low pass filter, radio frequency interface, high pass filter and mixed signal interface in the Ethernet wave multiplexer, data-interface, balance/nonbalance converter, low pass filter and mixed signal interface are connected successively, radio frequency interface, high pass filter and mixed signal interface are connected successively, the external coaxial cable of mixed signal interface.The data-interface of the Ethernet wave multiplexer in the comprehensive information access device receives the data ethernet signal, radio frequency interface receives TV RF signals, these two kinds of signals are after the Ethernet wave multiplexer mixes, the data that obtain/TV mixed signal, data/TV mixed signal is exported from mixed signal interface, is transferred to user's family through same coaxial cable of registering one's residence.The principle of frequency division multiplexing is adopted in the transmission of mixed signal, and in concrete the application, TV RF signals is transmitted by the frequency range of high pass filter more than 87M; And the data ethernet signal transmits in the frequency band of 0.5～30M by balance/nonbalance converter and low pass filter, and the data ethernet signal does not pass through any processing, and the mode with base band in coaxial cable transmits; Data ethernet signal (data-signal) and TV RF signals (TV signal) in data/TV mixed signal are independent of each other, and data has bigger bandwidth.
Network management module and TV signal reception and processing module, power module, switch module are connected among the present invention.Network management module is made up of signal picker, signal storage and ethernet module, and signal picker is gathered the signal parameter value of TV signal reception and processing module, power module, carry out quantization encoding after, deliver in the signal storage and store; EPON network management system software extracts canned data in the signal storage by passive optical network unit data module, switch module, ethernet module, and pass network management signals down by passive optical network unit data module, switch module, ethernet module, TV signal reception and processing module and power module are carried out network management.By increasing network management module, EPON network management system software can be realized the control and management to TV signal reception and processing module, power module, and all modules (passive optical network unit data module, switch module and Ethernet wave multiplexer module itself have Network Management Function, therefore do not need network management module to manage) unified management in the realization comprehensive information access device; Can understand the ruuning situation of all modules in real time, trouble saving takes place; When breaking down, find reason, the place of generation problem fast, accelerate troubleshooting speed.
The user terminal information device comprises an Ethernet wave multiplexer, and this Ethernet wave multiplexer structure is identical with Ethernet wave multiplexer in the comprehensive information access device.The mixed signal interface of corresponding Ethernet wave multiplexer is connected by coaxial cable in the mixed signal interface of the Ethernet wave multiplexer in the user terminal information device and the comprehensive information access device.Ethernet wave multiplexer in the user terminal information device receives data/TV mixed signal by mixed signal interface; After high pass filter filters, export TV RF signals to television set from radio frequency interface; Through low pass filter filtering, and after the conversion of balance/nonbalance converter, from data-interface dateout ethernet signal to data terminal, thereby realize separating of data ethernet signal and TV RF signals.
The corresponding a plurality of user terminal information devices of a common comprehensive information access device, promptly contain a plurality of Ethernet wave multiplexers in a comprehensive information access device, the quantity of its quantity and user terminal information device adapts (its quantity can equal or more than user terminal information device quantity), and each Ethernet wave multiplexer can connect a user terminal information device.
The data ethernet signal that the data terminal of user's family is uploaded inputs to the data-interface of the Ethernet wave multiplexer in the user terminal information device, through balance/nonbalance converter conversion and after low pass filter filtering, from mixed signal interface output, be delivered to the mixed signal interface of corresponding Ethernet wave multiplexer in the comprehensive information access device through coaxial cable; The low pass filter filtering of corresponding Ethernet wave multiplexer in comprehensive information access device, and after balance/nonbalance converter conversion, (this interface is semiduplex interface from data-interface dateout ethernet signal to switch module corresponding interface, descending data ethernet signal passes through these interfaces with up data ethernet signal in the different periods), by the ethernet signal interface that is delivered to the passive optical network unit data module after the switch module processing, the passive optical network unit data module converts the data ethernet signal to the data light signal, through optical signal interface, data optical fiber is uploaded.
The present invention utilizes Ethernet wave multiplexer module that data-signal and the TV signal that receives formed data/TV mixed signal after treatment, data/TV mixed signal is transferred to the user by same coaxial cable, and at user terminal TV signal is separated with data-signal, data-signal and TV signal are independent of each other in the transmission course; The corresponding user of each Ethernet wave multiplexer, the bandwidth that each user can enjoy is big; When the user uploads data, the Ethernet data signal that each user uploads is transferred to switch module after by Ethernet wave multiplexer resume module, after handling by switch module again the optical transceiver in the passive optical network unit data module convert light signal to and continue to upload, eliminate funneling effect effectively; The present invention adopts modular construction, can match, increase and decrease certain module (for example can progressively increasing switch module and Ethernet wave multiplexer module, and progressively increase the access customer number amount according to business development) as required flexibly, adapts to the needs of networking; Because a user uses an Ethernet wave multiplexer, promptly each user is connected with comprehensive information access device by a transmission lines separately, and in addition because the present invention adopts modular construction, therefore maintenance is more prone to, conveniently; Comprehensive information access device is by network management module, can adopt modules such as the network management system Management Television signal reception of EPON (based on the EPON of Ethernet mode) and processing module, power module, has perfect Network Management Function.The present invention is applicable to that the integrated information in zones such as sub-district, building inserts, and is particularly suitable for being installed on corridor to user's family, and wherein comprehensive information access device is installed on corridor; Basic identical with the improved network configuration of the present invention and original hfc plant, therefore the various facilities in original hfc plant are fully used, and save network construction cost.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiment of the present invention 1;
Fig. 2 is the structural representation of Ethernet wave multiplexer module among Fig. 1;
Fig. 3 is the structural representation of cable TV Optical Receivers among Fig. 1;
Fig. 4 is the syndeton schematic diagram of the Ethernet wave multiplexer module in the comprehensive information access device and the Ethernet wave multiplexer in the user terminal information device among Fig. 1;
Fig. 5 is the structural representation of the preferred embodiment of the present invention 2.
Embodiment
As depicted in figs. 1 and 2, this area summarized information access system comprises comprehensive information access device and user terminal information device;
Wherein comprehensive information access device comprises:
Passive optical network unit data module 1 converts the downlink data light signal data ethernet signal to and is transferred to switch module 2, will convert the data light signal to from the upstream data ethernet signal of switch module 2 and uploads;
Switch module 2, the data ethernet signal from passive optical network unit data module 1 distributed exchange after, be transferred to Ethernet wave multiplexer 50 corresponding in the Ethernet wave multiplexer module 5; After handling, be transferred to passive optical network unit data module 1 from the upstream data ethernet signal of Ethernet wave multiplexer module 5;
Cable TV Optical Receivers 3, after the TV light signal that receives handled, the output TV RF signals was to distributor 4;
Three Ethernet wave multiplexer modules 5 (being called for short EOC module 5), comprise an Ethernet wave multiplexer 50 (being called for short EOC) in each Ethernet wave multiplexer module 5, Ethernet wave multiplexer 50 will mix from the data ethernet signal of switch module 2 with from the TV RF signals of distributor 4, and the data that obtain after will mixing/TV mixed signal transfers to the user terminal information device through coaxial cable 8; To be transferred to switch module 2 from the upstream data ethernet signal of user's end message device;
Network management module 6 is monitored and is managed cable TV Optical Receivers 3 and power module 7, and the information that monitors is uploaded by switch module 2, passive optical network unit data module 1; The network management signals that reception passes for 2 times through passive optical network unit data module 1, switch module, and cable TV Optical Receivers 3 and power module 7 carried out network management;
Power module 7 is for comprehensive information access device provides working power;
Wherein the user terminal information device comprises an Ethernet wave multiplexer 502, Ethernet wave multiplexer 502 will be separated into data ethernet signal and TV RF signals from the data/TV mixed signal of coaxial cable 8, flow to data terminal 11 and television set 12 respectively; To be transferred to Ethernet wave multiplexer 50 corresponding in the Ethernet wave multiplexer module 5 through coaxial cable 8 from the upstream data ethernet signal of data terminal 11.
Be provided with data-interface 51 (data-interface 51 adopts the RJ45 interface in the present embodiment), balance/nonbalance converter 52, low pass filter 53, radio frequency interface 54, high pass filter 55 and mixed signal interface 56 in above-mentioned each Ethernet wave multiplexer 50, data-interface 51, balance/nonbalance converter 52, low pass filter 53 and mixed signal interface 56 are connected successively, radio frequency interface 54, high pass filter 55 and mixed signal interface 56 are connected successively, mixed signal interface 56 external coaxial cables 8.In the present embodiment, corresponding three the user terminal information devices of comprehensive information access device, promptly contain three Ethernet wave multiplexers 50 in a comprehensive information access device, each Ethernet wave multiplexer 50 connects the Ethernet wave multiplexer 502 of a user terminal information device.
The TV RF signals (from distributor 4) that data ethernet signal that above-mentioned Ethernet wave multiplexer 50 receives data-interface 51 (from switch module 2) and radio frequency interface 54 receive is mixed, mixed signal is transferred to the user terminal information device of user's family from mixed signal interface 56 outputs through the same coaxial cable of registering one's residence 8.The principle of frequency division multiplexing is adopted in the transmission of mixed signal, and TV RF signals is transmitted for 8 li at coaxial cable by the frequency range of high pass filter 55 more than 87M; And the data ethernet signal transmits in the frequency band of 0.5～30M by balance/nonbalance converter 52 and low pass filter 53, and the data ethernet signal does not pass through any processing, transmits in 8 li modes with base band of coaxial cable.
Passive optical network unit data module 1 has optical signal interface and ethernet signal interface, and wherein optical signal interface connects data optical fiber 9, is used for input, dateout light signal; The ethernet signal interface is through the data-interface 51 of the corresponding Ethernet wave multiplexer 50 of switch module 2 connections, and this ethernet signal interface is used for input, dateout ethernet signal.Be provided with the optical transceiver and the inner exchanging machine that connect successively in the passive optical network unit data module 1, optical transceiver has optical signal interface (this optical signal interface is the optical signal interface of passive optical network unit data module) and ethernet signal interface, the ethernet signal interface of optical transceiver connects inner exchanging machine corresponding interface, and the inner exchanging machine also has a plurality of ethernet signal interfaces (the ethernet signal interface that these a plurality of ethernet signal interfaces are passive optical network unit data modules).An ethernet signal interface of above-mentioned passive optical network unit data module 1 connects the switch module 2 in this comprehensive information access device, and all the other ethernet signal interfaces can connect the switch module in other comprehensive information access device that does not have the passive optical network unit data module.Optical transceiver is through its optical signal interface downlink data receiving light signal, and converts the downlink data light signal to the data ethernet signal, exports the inner exchanging machine to through its ethernet signal interface; Optical transceiver is through the upstream data ethernet signal of its ethernet signal interface input from the inner exchanging machine, and converts the upstream data ethernet signal to the data light signal, uploads through its optical signal interface.Passive optical network unit data module 1 will convert the data ethernet signal to from the downlink data light signal of optical signal interface input, be transferred to switch module 2, input to data-interface 51 corresponding in the Ethernet wave multiplexer module 5 after switch module 2 distributes.
After switch module 2 receives the data ethernet signal and distributes exchange to handle, export the data-interface 51 (in the present embodiment, this data-interface 51 is data-interfaces of the Ethernet wave multiplexer module 5 of correspondence) of corresponding Ethernet wave multiplexer 50 to from corresponding interface.
As shown in Figure 3, cable TV Optical Receivers 3 has optical signal interface 31 and radiofrequency signal output interface 32.Be provided with optical receiver 33 and radio frequency signal amplifiers 34 in the cable TV Optical Receivers 3, the optical signal interface 31 of optical receiver 33 (optical signal interface 31 that this optical signal interface 31 is cable TV Optical Receivers 3) connects TV signal input optical fibre 10, the radiofrequency signal output interface of optical receiver 33 connects the radiofrequency signal input interface of radio frequency signal amplifiers 34, the radio frequency interface 54 that the radiofrequency signal output interface of radio frequency signal amplifiers 34 (the radiofrequency signal output interface 32 that this radiofrequency signal output interface is a cable TV Optical Receivers 3) connects corresponding Ethernet wave multiplexer 50 through distributor 4 (in the present embodiment, this radio frequency interface 54 is radio frequency interfaces of the Ethernet wave multiplexer module 5 of correspondence), the optical receiver 33 of cable TV Optical Receivers 3 will convert radiofrequency signal to from the light signal of TV signal input optical fibre 10, after radio frequency signal amplifiers 34 amplifies, after distributing, distributor 4 inputs to the radio frequency interface of corresponding Ethernet wave multiplexer module 5.
Network management module 6 is connected with cable TV Optical Receivers 3, power module 7, switch module 2.Network management module 6 is made up of signal picker, signal storage and ethernet module, and signal picker is gathered the signal parameter value of cable TV Optical Receivers 3, power module 7, carry out quantization encoding after, deliver in the signal storage and store; EPON network management system software extracts canned data in the signal storage by passive optical network unit data module 1, switch module 2, ethernet module, and, cable TV Optical Receivers 3 and power module 7 are carried out network management by passing network management signals under passive optical network unit data module 1, switch module 2, the ethernet module.
As shown in Figure 4, Ethernet wave multiplexer 502 structures in the user terminal information device are identical with the Ethernet wave multiplexer 50 in the comprehensive information access device, and the mixed signal interface 56 of corresponding Ethernet wave multiplexer 50 is connected by coaxial cable 8 in the mixed signal interface 562 of Ethernet wave multiplexer 502 and the comprehensive information access device.Ethernet wave multiplexer 502 is separated data ethernet signal and TV RF signals, is delivered to data terminal 11 and television set 12 respectively.Ethernet wave multiplexer 502 in the user terminal information device receives data/TV mixed signal by mixed signal interface 562, after high pass filter 552 filtering from radio frequency interface 542 output TV RF signals to television set 12, through low pass filter 532 filtering and after 522 conversions of balance/nonbalance converter from data-interface 512 dateout ethernet signals to data terminal 11.
The data ethernet signal that the data terminal 11 of user's family is uploaded inputs to the data-interface 512 of the Ethernet wave multiplexer 502 in the user terminal information device, through 522 conversions of balance/nonbalance converter and after low pass filter 532 filtering, from mixed signal interface 562 output, be delivered to the mixed signal interface 56 of corresponding Ethernet wave multiplexer 50 in the comprehensive information access device through coaxial cable 8; Low pass filter 53 filtering of corresponding Ethernet wave multiplexer 50 in comprehensive information access device, and after 52 conversions of balance/nonbalance converter, (this interface is semiduplex interface from data-interface 51 dateout ethernet signals to switch module 2 corresponding interface, descending data ethernet signal passes through these interfaces with up data ethernet signal in the different periods), by the ethernet signal interface that is delivered to passive optical network unit data module 1 after switch module 2 processing, passive optical network unit data module 1 converts the data ethernet signal to the data light signal, through optical signal interface, data optical fiber 9 is uploaded.
Embodiment 2
As shown in Figure 5, TV signal reception and processing module are radio frequency signal amplifiers module 13 in the present embodiment, promptly with the cable TV Optical Receivers 3 in radio frequency signal amplifiers module 13 alternate embodiments 1.Be provided with radio frequency signal amplifiers in the radio frequency signal amplifiers module 13, the radiofrequency signal input interface of radio frequency signal amplifiers connects TV signal input cable 14, the radiofrequency signal output interface of radio frequency signal amplifiers (the radiofrequency signal output interface that this radiofrequency signal output interface is the radio frequency signal amplifiers module) connects corresponding radio frequency interface in the Ethernet wave multiplexer module 5 through distributor 4, radio frequency signal amplifiers in the radio frequency signal amplifiers module 13 will input to radio frequency interface corresponding in the Ethernet wave multiplexer module 5 after will importing the TV RF signals amplification of cable 14 from TV signal after distributor 4 distributes.
Network management module 6 is connected with radio frequency signal amplifiers module 13, power module 7, switch module 2.6 pairs of radio frequency signal amplifiers modules 13 of network management module and power module 7 are monitored and are managed, and the information that monitors is uploaded by switch module 2, passive optical network unit data module 1; The network management signals that reception passes for 2 times through passive optical network unit data module 1, switch module, and radio frequency signal amplifiers module 13 and power module 7 carried out network management.
All the other structures of present embodiment are identical with embodiment 1.
In other embodiments, the Ethernet wave multiplexer module in the comprehensive information access device can adopt multiport Ethernet wave multiplexer module, is provided with a plurality of Ethernet wave multiplexers in each Ethernet wave multiplexer module.Multiport Ethernet wave multiplexer module is to be combined by certain transformation by a plurality of Ethernet wave multiplexers, does as a whole the use.Its a kind of concrete structure is, be provided with an internal distribution device in the multiport Ethernet wave multiplexer module, a plurality of Ethernet wave multiplexers, a radio frequency interface, a plurality of data-interfaces and a plurality of mixed signal interface (have 4 data interfaces as 4 road Ethernet wave multiplexer modules, 1 radio frequency interface and 4 mixed signal interfaces, and 6 road Ethernet wave multiplexer modules have 6 data interfaces, 1 radio frequency interface and 6 mixed signal interfaces), radio frequency interface is connected through the radio frequency interface of internal distribution device with each Ethernet wave multiplexer, each data-interface is the data-interface of each Ethernet wave multiplexer, and each mixed signal interface is the mixed signal interface of each Ethernet wave multiplexer.It is connected with the corresponding interface of switch module by each data-interface; Be connected with distributor by radio frequency interface; Be connected with the Ethernet wave multiplexer of user terminal information device through the coaxial cable service wire by mixed signal interface.
Claims (8)
1. an area summarized information access system comprises comprehensive information access device and user terminal information device;
Wherein comprehensive information access device comprises:
(1) passive optical network unit data module converts the downlink data light signal data ethernet signal to and is transferred to switch module, will convert the data light signal to from the upstream data ethernet signal of switch module and uploads;
(2) switch module, the data ethernet signal from the passive optical network unit data module distributed exchange after, be transferred to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module; After handling, be transferred to the passive optical network unit data module from the upstream data ethernet signal of Ethernet wave multiplexer module;
(3) TV signal receives and processing module, and after the TV signal that receives was handled, the output TV RF signals was to distributor;
(4) distributor after the TV RF signals distribution that receives, is transferred to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module;
(5) Ethernet wave multiplexer module, it comprises one or more Ethernet wave multiplexers, the Ethernet wave multiplexer will mix from the data ethernet signal of switch module with from the TV RF signals of distributor, and the data that obtain after will mixing/TV mixed signal transfers to the user terminal information device through coaxial cable; To be transferred to switch module from the upstream data ethernet signal of user's end message device;
(6) network management module is monitored and is managed TV signal reception and processing module and power module, and the information that monitors is uploaded by switch module, passive optical network unit data module; The network management signals that reception passes down through passive optical network unit data module, switch module, and TV signal reception and processing module and power module carried out network management;
(7) power module is for comprehensive information access device provides working power;
Wherein the user terminal information device comprises an Ethernet wave multiplexer, and this Ethernet wave multiplexer will be separated into data ethernet signal and TV RF signals from the data/TV mixed signal of coaxial cable, flow to data terminal and television set respectively; To be transferred to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module through coaxial cable from the upstream data ethernet signal of data terminal.
2. area summarized information access system according to claim 1 is characterized in that: be provided with the optical transceiver and the inner exchanging machine that connect successively in the described passive optical network unit data module; Optical transceiver has optical signal interface and ethernet signal interface, and the optical signal interface of optical transceiver is the optical signal interface of passive optical network unit data module, and this optical signal interface is used for input, dateout light signal; The ethernet signal interface of optical transceiver connects inner exchanging machine corresponding interface, the inner exchanging machine also has a plurality of ethernet signal interfaces, the ethernet signal interface that these a plurality of ethernet signal interfaces are passive optical network unit data modules, the ethernet signal interface of passive optical network unit data module are used for input, dateout ethernet signal; Optical transceiver is through its optical signal interface downlink data receiving light signal, and converts the downlink data light signal to the data ethernet signal, exports the inner exchanging machine to through its ethernet signal interface; Optical transceiver is through the upstream data ethernet signal of its ethernet signal interface input from the inner exchanging machine, and converts the upstream data ethernet signal to the data light signal, uploads through its optical signal interface.
3. area summarized information access system according to claim 1 is characterized in that: described TV signal receives and processing module is cable TV Optical Receivers or radio frequency signal amplifiers module.
4. area summarized information access system according to claim 3, it is characterized in that: be provided with optical receiver and radio frequency signal amplifiers in the described cable TV Optical Receivers, the optical signal interface of optical receiver is the optical signal interface of cable TV Optical Receivers, the radiofrequency signal output interface of optical receiver connects the radiofrequency signal input interface of radio frequency signal amplifiers, the Ethernet wave multiplexer of the radiofrequency signal output interface of radio frequency signal amplifiers in distributor connection Ethernet wave multiplexer module, the optical receiver of cable TV Optical Receivers will convert TV RF signals to from the TV light signal of optical signal interface input, after radio frequency signal amplifiers amplifies, after distributor distributes, input to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module.
5. area summarized information access system according to claim 3, it is characterized in that: be provided with radio frequency signal amplifiers in the described radio frequency signal amplifiers module, the radiofrequency signal input interface of radio frequency signal amplifiers connects TV signal input cable, the radiofrequency signal output interface of radio frequency signal amplifiers connects corresponding Ethernet wave multiplexer in the Ethernet wave multiplexer module through distributor, radio frequency signal amplifiers in the radio frequency signal amplifiers module will input to Ethernet wave multiplexer corresponding in the Ethernet wave multiplexer module after will importing the TV RF signals amplification of cable from TV signal after distributor distributes.
6. according to each described area summarized information access system of claim 1～5, it is characterized in that: be provided with one or more Ethernet wave multiplexer modules in the described comprehensive information access device, comprise one or more Ethernet wave multiplexers in the Ethernet wave multiplexer module.
7. according to each described area summarized information access system of claim 1～5, it is characterized in that: the Ethernet wave multiplexer structure of Ethernet wave multiplexer in the described comprehensive information access device and user terminal is identical; Be provided with data-interface, balance/nonbalance converter, low pass filter, radio frequency interface, high pass filter and mixed signal interface in the Ethernet wave multiplexer, data-interface, balance/nonbalance converter, low pass filter and mixed signal interface are connected successively, and radio frequency interface, high pass filter and mixed signal interface are connected successively; The mixed signal interface of corresponding Ethernet wave multiplexer is connected by coaxial cable in the mixed signal interface of the Ethernet wave multiplexer in the user terminal information device and the comprehensive information access device.
8. area summarized information access system according to claim 6 is characterized in that: the Ethernet wave multiplexer structure of Ethernet wave multiplexer in the described comprehensive information access device and user terminal is identical; Be provided with data-interface, balance/nonbalance converter, low pass filter, radio frequency interface, high pass filter and mixed signal interface in the Ethernet wave multiplexer, data-interface, balance/nonbalance converter, low pass filter and mixed signal interface are connected successively, and radio frequency interface, high pass filter and mixed signal interface are connected successively; The mixed signal interface of corresponding Ethernet wave multiplexer is connected by coaxial cable in the mixed signal interface of the Ethernet wave multiplexer in the user terminal information device and the comprehensive information access device.
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| CNB2007100299526A CN100534058C (en) | 2007-08-22 | 2007-08-22 | Area summarized information access system |
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| CNB2007100299526A CN100534058C (en) | 2007-08-22 | 2007-08-22 | Area summarized information access system |
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| CN100534058C CN100534058C (en) | 2009-08-26 |
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| CN101345589B (en) * | 2008-08-25 | 2011-06-15 | 杭州华三通信技术有限公司 | Apparatus and method for integrating passive optical network and coaxial Ethernet component |
| CN102215191A (en) * | 2011-04-12 | 2011-10-12 | 北京傲天动联技术有限公司 | Ethernet over coax (EOC) multimode multiband composite transmission equipment |
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| CN102694783A (en) * | 2011-03-25 | 2012-09-26 | 上海澳润信息科技有限公司 | Tri-network integrated multi-service photoelectric integrated network element |
| CN103023660A (en) * | 2012-12-03 | 2013-04-03 | 湖北牧马人网络技术股份有限公司 | Conversion method and conversion device for Ethernet connection media |
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| CN102215191A (en) * | 2011-04-12 | 2011-10-12 | 北京傲天动联技术有限公司 | Ethernet over coax (EOC) multimode multiband composite transmission equipment |
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| CN103023660A (en) * | 2012-12-03 | 2013-04-03 | 湖北牧马人网络技术股份有限公司 | Conversion method and conversion device for Ethernet connection media |
| WO2015081574A1 (en) * | 2013-12-06 | 2015-06-11 | 华为技术有限公司 | Mixer circuit, service device, and mixer service system |
| CN103782548B (en) * | 2013-12-06 | 2017-09-12 | 华为技术有限公司 | A kind of mixting circuit, business device and mixing operation system |
| CN103647743A (en) * | 2013-12-29 | 2014-03-19 | 联想(北京)有限公司 | Signal processing method and associated device |
| CN103647743B (en) * | 2013-12-29 | 2017-12-26 | 联想(北京)有限公司 | A kind of signal processing method and relevant apparatus |
| CN104320191A (en) * | 2014-10-15 | 2015-01-28 | 成都广达电子股份有限公司 | Multiservice access system and multiservice access method based on optical fiber communications |
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