CN201248043Y - Optical network base station - Google Patents
Optical network base station Download PDFInfo
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- CN201248043Y CN201248043Y CN 200820064917 CN200820064917U CN201248043Y CN 201248043 Y CN201248043 Y CN 201248043Y CN 200820064917 CN200820064917 CN 200820064917 CN 200820064917 U CN200820064917 U CN 200820064917U CN 201248043 Y CN201248043 Y CN 201248043Y
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Abstract
The utility model provides an optical network base station which solves the problems of complex data signal access device, high cost and inconvenient access of the prior CATV network base station. An optical work station is connected with a plurality of EOC data modems and is connected with a network management module, and the EOC data modems are connected with a data source module which is an ONU or an optical fiber transceiver or an Ethernet switch.
Description
Technical field:
The utility model is relevant with the optical workstation of the cable TV network of incoming data signal.
Background technology:
Ethernet coaxial cable (Ethernet over Coax) access technology is from the existing so far 13 years history of its invention, since 1997 enter China, it at first is representative with CMTS+CM, formed again look as e logical, the multiple form of expression such as Uclink, but all run into such or such problems of operation.As the access device complexity, insert inconveniently, the cost height can not utilize the device and the idle frequence of cable TV network.
The utility model content:
The purpose of this utility model provide a kind of in the optical workstation of cable TV network incoming data signal, insert convenient, flexibly, the optical-fiber network base station that cost is low.
The utility model is achieved in that
The utility model optical-fiber network base station, optical workstation is connected with some EOC data modem units, is connected with the webmaster module, and the EOC data modem unit is connected with the data source module, and the data source module is ONU or fiber optical transceiver or Ethernet switch.
Optical workstation and some EOC data modem units adopt modularized design respectively, and these two modules are installed in one and install above the base plate, realize interconnected by radio frequency connecting line, data wire, power line.
Optical workstation is the box body that upper and lower cavity constitutes, upper cavity is that radio frequency cavity, lower chamber are that power supply is installed cavity, the optical workstation box body is positioned at the right-hand member that base plate 7 is installed, the right-hand member that base plate is installed has EOC data modem unit, webmaster module, data source module, and the interface outside the box body is connected with optical fiber, the cable in the hfc plant.
The prevention at radio-frequency port of optical workstation is connected with duplexer filter, and the spare interface of duplexer filter is connected with the data signal interfaces of EOC data modem unit.
The central processing unit CPU of EOC data modem unit is connected with a RJ45 interface through the PHY/MAC interface, link to each other with the EOC data signal interfaces of optical workstation through AD/DA converting unit, filter unit, link to each other with Switching Power Supply, FLASH memory and SDRAM memory respectively.
The central processing unit of webmaster module is connected with the data detector of optical workstation by parameter acquisition unit, is connected with power supply, is connected with the 2nd RJ45 interface by the PHY/MAC unit.
The utility model has been released a kind of novel ethernet coaxial cable access scheme on the basis of summing up cable TV network construction experiences for many years and research network operation.This scheme has realized carrying out " integration of three networks " business rapidly in existing cable TV network, satisfies the multiple value-added service demand of user, but the market competitiveness of fast lifting cable television operators.
The utility model is incoming data signal in cable TV network (HFC), the fiber optic network base station equipment of data service service is carried out in realization by hfc plant and terminal, its feature is the optical node place of access point in traditional cable TV network (HFC) of data, it adopts optical workstation and the modularized design of EOC data modem unit, flexible combination adapts to different user's requests.The main business of cable TV network remains the transmission of video frequency program, when existing hfc plant provides video frequency program, adopt various fiber optic network technology such as fiber optical transceiver, ONU or optical switch at optical fiber link, adopt EOC equipment to realize data at the coaxial cable link, realization is by the purpose of hfc plant and terminal, and is low-cost, carry out the data service service fast.
Description of drawings:
Fig. 1 is a block diagram of the present utility model.
Fig. 2 is the optical workstation circuit theory diagrams.
Fig. 3 is an EOC data modem unit schematic diagram.
Fig. 4 is webmaster module principle figure.
Fig. 5 is box body structure figure.
Fig. 6 is for installing base plate mounting structure figure.
Embodiment:
The utility model can be by five most of compositions on structure.First: optical workstation part, mainly finish downlink optical signal and be converted to the signal of telecommunication and carry out equilibrium adjusting, decay adjusting, amplification, signal allocation, mixing EOC modulation-demodulation signal and the mixing of up radiofrequency signal, the functions such as regulating, amplify, be converted to light signal and output that decays, the switch power module of complete machine also has been installed in the bottom surface cavity in the optical workstation cavity; Second portion is: EOC data modem part, and the conversion of signals of mainly finishing Ethernet protocol is the function of adaptation at the signal of coax network transmission; Third part is: the webmaster module section, mainly finish the parameter detecting of the utility model optical-fiber network base station; The 4th part is: the data source part mainly provides the data-signal of Ethernet protocol; The 5th part is: base plate is installed, mainly as above tetrameric installation carrier.
The utility model optical-fiber network base station is to insert EOC data modem unit module on the optical workstation platform in cable TV network (HFC), realize the cable transmission altogether of cable TV signal and data-signal, adopt HomePlug (power line network alliance of HomePlug Powerline Alliance family) standard, idle frequence (5-30MHz) resource that makes full use of hfc plant is carried out the data access.
Optical workstation part of the present utility model is basic identical with general optical workstation principle, different be before prevention at radio-frequency port D1～D4 is used to insert EOC data modem unit signal C1～C4 by duplexer filter A1～A4 spare interface EOC data signal interfaces B1～B4.The overall optical work station partly adopts modularization, divide cavity design, integral body is a big box body structure, as shown in Fig. 5 the utility model optical workstation part box body structure figure, whole box body is divided into and is two main cavitys up and down, the cavity 1 of lower part is installed cavity for power supply, upper part is the radio frequency cavity, specifically being divided into a light harvesting again receives, light is sent out, radio frequency amplification and signal allocation are that the radio frequency processing of one divides cavity 2 and four radiofrequency signal ports to divide cavity 3-6, these four ports divide cavity to be responsible for the function that four road EOC data modem signals mix with cable TV signal respectively, perforate between each cavity is used for the connection of power supply line and holding wire etc., the optical workstation box body structure is positioned at the left end that base plate 7 is installed, the right-hand member that base plate is installed has EOC data modem unit 10-13, webmaster module 9, data source module 8.The outer interface of box body be responsible for all the other functional modules be connected with hfc plant in being connected of optical fiber, cable.The optical workstation part mainly comprises: Optical Receivers M1, light emission module M2, descending amplification module M3, up amplification module M4, descending equalizer EQ1, downstream attenuation device AT1, up attenuator AT2, duplexer filter A1～A5, compositions such as feeding switch K1～K4, Switching Power Supply P1.Downlink optical signal at first enters Optical Receivers M1, pass through descending equalizer EQ1 then, downstream attenuation device AT1 regulates, entering descending amplification module M3 again amplifies, by duplexer filter A1, carry out signal allocation by distributor F1～F3 again, be divided into four road signals, carry out signal by duplexer filter A1～A4 and EOC data modem unit signal C1～C4 respectively at last and mix the back from prevention at radio-frequency port D1～D4 output, upward signal is then at first respectively from prevention at radio-frequency port D1～D4 input, through duplexer filter A1～A4 partial wave, the following signal of 30MHz enters EOC data modem unit signal C1～C4, the signal of 45～65MHz oppositely is mixed into one road signal by duplexer filter A1 by distributor F1～F3 again, again by up attenuator AT2, amplify through up amplification module M4 then, send out module output by light at last.
2, EOC data modem part
The conversion of signals that the EOC data modem unit is mainly carried out Ethernet protocol is the function of adaptation at the signal of coax network transmission, adopt HomePlug (power line network alliance of HomePlug Powerline Alliance family) standard, utilize idle frequence (5-30MHz) resource of hfc plant to carry out the data access.Use OFDM (OFDM) technology, it is a kind of multicarrier multiplex technique, and this technology is divided into N subchannel with channel, is parallel data stream with the high speed data conversion of serial, carries out data-modulated then respectively.CPU element is the CPU of modulator-demodulator, controlled function such as the processing of responsible data, storage, transmitting-receiving, program and data are stored in the FLASH unit, SDRAM is responsible for the storage in the CPU element processing procedure, data source signal is by the RJ45 interface, carry out conversion of signals through the PHY/MAC interface again, entering CPU element at last handles, treated data, are linked to each other with the EOC data signal interfaces B1～B4 of optical workstation through filter unit by the AD/DA converting unit by CPU again.
3, webmaster module section
The webmaster module realizes the parameter detecting to the utility model optical-fiber network base station, comprises alternating current 220V or exchanges 60V voltage detecting, the detection of descending light receiving power, the detection of up light emitting power, direct voltage+24V detection, direct voltage+5V detection, working temperature etc.CPU in the webmaster module is a core devices, groundworks such as the collection of responsible data, communication, protocol conversion, the parameter that needs to gather enters CPU through parameter acquisition unit, through carrying out the conversion of hfc plant equipment management system specification protocol and WEB management http protocol after the computing again, be connected to the RJ45 interface through the PHY/MAC unit again, in the access network based on ethernet network, carry out communication with the front end webmastering software.
4, data source part
Data source of the present utility model can be ONU equipment, fiber optical transceiver or Ethernet switch etc., and the data-signal of Ethernet protocol mainly is provided.
5, base plate is installed
The utility model adopts modularized design, and all functions module is installed in one and installs on the base plate, connects by modes such as radio frequency connecting line, electric power connection line, data connecting lines, realizes that the power supply of each functional module, signal connect and data communication.
The utility model is optical workstation part, EOC data modem part, webmaster module section, data source part, base plate five parts composition is installed.Wherein four parts except that base plate is installed are functional module, and it is the carrier of each functional module that base plate is installed.
The utility model provides a kind of incoming data signal in the cable TV network (HFC) that is implemented in, the fiber optic network base station equipment of data service service is carried out in realization by hfc plant and terminal, the optical node place of the access point of data in traditional cable TV network (HFC), it provides the signal service of two big classes, one is traditional cable TV signal, and another is the data-signal business.
Introducing signal processing flow of the present utility model from two aspects below is:
1, traditional cable TV signal enters Optical Receivers M1 of the present utility model by optical fiber, through opto-electronic conversion, become the signal of telecommunication, carry out slope adjustment through equalizer EQ1 again and downstream attenuation device AT1 carries out level adjustment, enter descending amplification module M3 then and carry out the signal amplification, then by carrying out signal allocation by distributor F1～F3 again behind the duplexer filter A5, be divided into four road signals, enter respectively in four port cavitys among D1～D4, respectively by behind duplexer filter A1～A4 from port D1-D4 output; Then import by port D1-D4 at first respectively by the upward signals such as video request program that user side oppositely returns, through oppositely mixing by distributor F1～F3 again behind duplexer filter A1～A4, then by carrying out level adjustment by up attenuator AT2 behind the duplexer filter A5, amplifying the back by up amplification module M4 at last and carry out the electric light conversion by light emission module M2, is to enter passback optical fiber behind the light signal with electrical signal conversion;
2, the data-signal of downlink Ethernet agreement at first passes through data source module (can be ONU or fiber optical transceiver or Ethernet switch) and receives, enter EOC data modem module is transmitted for adaptation the conversion of signals of Ethernet protocol at coax network signal then, insert the optical workstation part by EOC data signal interfaces B1～B4 again, mix the back with descending cable TV signal by port D1-D4 output by duplexer filter A1～A4, upstream signal by the user side passback is then at first imported by port D1-D4, and then by duplexer filter A1～A4, enter by EOC data signal interfaces B1～B4 and to enter data-source device again, forward end passback again after EOC data modem module will adapt to the signal that conversion of signals in coax network transmission is an Ethernet protocol.
Claims (6)
1, optical-fiber network base station, it is characterized in that optical workstation is connected with some EOC data modem units, be connected with the webmaster module, the EOC data modem unit is connected with the data source module respectively with the webmaster module, and the data source module is ONU or fiber optical transceiver or Ethernet switch.
2, optical-fiber network according to claim 1 base station, it is characterized in that optical workstation and some EOC data modem units adopt modularized design respectively, these two modules are installed in one and install above the base plate, realize interconnected by radio frequency connecting line, data wire, power line.
3, optical-fiber network according to claim 2 base station, it is characterized in that optical workstation is the box body that upper and lower cavity constitutes, upper cavity is that radio frequency cavity, lower chamber are that power supply is installed cavity, the optical workstation box body is positioned at the right-hand member that base plate (7) is installed, the right-hand member that base plate is installed has EOC data modem unit, webmaster module, data source module, and the interface outside the box body is connected with optical fiber, the cable in the hfc plant.
4, according to claim 1 or 2 or 3 described optical-fiber network base stations, it is characterized in that the prevention at radio-frequency port of optical workstation is connected with duplexer filter, the spare interface of duplexer filter is connected with the data signal interfaces of EOC data modem unit.
5, optical-fiber network according to claim 1 base station, the central processing unit CPU that it is characterized in that the EOC data modem unit is connected with a RJ45 interface through the PHY/MAC interface, link to each other with the EOC data signal interfaces of optical workstation through AD/DA converting unit, filter unit, link to each other with Switching Power Supply, FLASH memory and SDRAM memory respectively.
6, optical-fiber network according to claim 1 base station is characterized in that the central processing unit of webmaster module is connected with the data detector of optical workstation by parameter acquisition unit, is connected with power supply, is connected with the 2nd RJ45 interface by the PHY/MAC unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820064917 CN201248043Y (en) | 2008-08-29 | 2008-08-29 | Optical network base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820064917 CN201248043Y (en) | 2008-08-29 | 2008-08-29 | Optical network base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201248043Y true CN201248043Y (en) | 2009-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200820064917 Expired - Fee Related CN201248043Y (en) | 2008-08-29 | 2008-08-29 | Optical network base station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011144075A2 (en) * | 2011-05-25 | 2011-11-24 | 华为技术有限公司 | Internet data transmission apparatus, transmission line and ethernet over coaxial-cable device |
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2008
- 2008-08-29 CN CN 200820064917 patent/CN201248043Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011144075A2 (en) * | 2011-05-25 | 2011-11-24 | 华为技术有限公司 | Internet data transmission apparatus, transmission line and ethernet over coaxial-cable device |
| WO2011144075A3 (en) * | 2011-05-25 | 2012-04-26 | 华为技术有限公司 | Internet data transmission apparatus, transmission line and ethernet over coaxial-cable device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHENGDU KINGTYPE ELECTRONIC NEW HI-TECH. CO., LTD. Free format text: FORMER NAME: |
|
| CP03 | Change of name, title or address |
Address after: 610045 Sichuan city of Chengdu Province east three road Wuhou District Wuke 9 Co-patentee after: Chengdu kingtype Network Engineering Technology Co. Ltd. Patentee after: CHENGDU KT ELECTRONIC HI-TECH CO., LTD. Address before: Three road 610045 Sichuan city of Chengdu province Wuhou District branch No. 9 Co-patentee before: Chengdu kingtype Network Engineering Technology Co. Ltd. Patentee before: Chengdu Kingtype Electronics Hi-Tech Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20170829 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |