CN201114072Y - Novel wired network system - Google Patents
Novel wired network system Download PDFInfo
- Publication number
- CN201114072Y CN201114072Y CNU2007200739714U CN200720073971U CN201114072Y CN 201114072 Y CN201114072 Y CN 201114072Y CN U2007200739714 U CNU2007200739714 U CN U2007200739714U CN 200720073971 U CN200720073971 U CN 200720073971U CN 201114072 Y CN201114072 Y CN 201114072Y
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- network system
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- wired network
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Abstract
The utility model provides a novel cable network system, comprising an emitting part of a local side audio optical transceiver, a receiving part of the local audio optical transceiver, a user side audio optical transceiver receiving part, a user side audio optical transceiver emitting part, a light path terminal, a WDM/DEMUX part, a wavelength demultiplexer/ multiplexing device, an optical divider for evenly distributing the light signal of the same wavelength to a plurality of output ports, and a plurality of light network units. The utility model adopts the WDM technique to add the PON to the prior cable network by a single optical fiber. Meanwhile, the prior cable network is maintained; therefore, the network establishing process does not interfere the use of the prior user, the 1310nm wave band in the prior cable television is avoided effectively and the novel cable network system can be used together with the prior cable network. The novel cable network system does not need the re-pavement of the optical fiber, thereby greatly shortening the establishing cycle of the network reconstruction.
Description
Technical field
The utility model relates to a kind of cable network transmission system, the cable network that especially relates to analogue technique and digital technology and deposit.
Background technology
Domestic cable network mainly adopts analog optical signal generator and optical receiver at present, and the wavelength of transmission mainly is 1310nm, belongs to star-like broadcast type network framework, by splitter light signal is assigned to each optical node.Because adopt the analogue transmission technology, power consumption is big, transmission range is short, needs to increase the image intensifer of a plurality of costlinesses.In addition, owing to be the broadcast-type structure, have only downlink transfer, uplink realizes that very costliness takies a lot of fiber resources, has limited the increase of transmission bandwidth, is difficult to business such as realization and audience interaction, program request, can not satisfy following business demand.
The utility model content
The purpose of this utility model is to provide a kind of novel wired network system, to solve the problems of the technologies described above.
For achieving the above object, the utility model adopts following technical scheme:
A kind of novel wired network system comprises:
The emission element of local side video optical multiplexer, the vision signal that is used for transmitting is modulated to light signal;
The receiving-member of local side video optical multiplexer is used for light signal is demodulated to vision signal;
User terminal video optical transceiver receiving-member is connected by optical fiber with the emission element of described local side video optical multiplexer, is used for the light signal demodulation and the transmission of will receive;
User terminal video optical transceiver emission element;
Optical line terminal;
Wavelength division multiplexer/demultiplexer spare, the one end is connected with described optical line terminal with the receiving-member of local side video optical multiplexer respectively by optical fiber; Be used for cable TV light signal and network light signal compound or the reduction different wave length;
Wavelength-division demultiplexing/multiplexing device, the one end is connected by optical fiber with the other end of described Wavelength division multiplexer/demultiplexer spare, and its other end is connected with optical branching device with described user terminal video optical transceiver emission element respectively by optical fiber; Be used for reduction or compound cable TV light signal and network light signal;
Optical branching device is used for energy mean allocation with the light signal of same wavelength to a plurality of output ports;
A plurality of optical network units, each described optical network unit is connected with an output port of described optical branching device.
Further, the receiving-member of the emission element of described local side video optical multiplexer, local side video optical multiplexer and described user terminal video optical transceiver receiving-member, user terminal video optical transceiver emission element are analog machine, and its operation wavelength is 1310nm.
Further, also comprise the analog signal converter that is connected with described user terminal video optical transceiver receiving-member, be used for converting the analog electrical signal of user terminal video optical transceiver receiving-member to the signal that on coaxial cable, transmits or the signal that the signal of copper axis cable is changed into user terminal video optical transceiver emission element.
Further, described optical line terminal is the ether optical network device of independent up wavelength and downstream wavelength.
Further, described optical branching device is a fused biconical taper splitter or based on the splitter of plane light wave waveguide technology.
Further, the operation wavelength of described optical line terminal and described optical network unit is 1490nm and 1550nm.
Further, also comprise the cable bridge device that links to each other with optical network unit, the conversion of signals that is used for described optical network unit is transmitted is to wired copper axis cable.
Further, also comprise the copper y axis amplifier y that is connected with described analog signal converter, be used for the analog signal of described analog signal converter output is amplified.
Further, also comprise the copper axis distributor that is connected with described copper y axis amplifier y, use the analog signal that to transmit on the copper axle to carry out five equilibrium and send into the user.
Further, the quantity of described optical network unit is 2～64.
The utility model adopts wavelength-division multiplex technique by simple optical fiber EPON (PON) system to be added in the existing cable network.It has the following advantages:
1, the network system that existing network system based on analogue technique is transform as analogue technique and digital technology (ethernet technology) and deposits.Keep existing wired network system simultaneously, so the networking process can not disturb original user to use.
2, the PON system works in the technical solutions of the utility model has effectively been avoided the 1310nm wave band in traditional cable TV at 1400 ~ 1600 wave bands, can mix with traditional cable network and use.
3, save fiber resource, do not needed to increase optical fiber in the network rebuilding, saved the cable network improvement cost.
4, the utility model adopts the PON system of digital modulation technique, and its antijamming capability is strong, and long transmission distance does not need to increase expensive image intensifer in the circuit.
5, the utility model does not need to carry out the laying again of optical fiber, has shortened the construction period of the network rebuilding greatly.
The utility model is described in further detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
Embodiment
As shown in Figure 1, a kind of novel wired network system comprises:
Parts 1: the emission element of local side video optical multiplexer, the vision signal that is used for transmitting is modulated to light signal, and transmits in optical fiber, and its operation wavelength is 1310nm, is to belong to analog machine, and its transmission rate is at 622Mbps.
Parts 2: the receiving-member of local side video optical multiplexer, be used to receive the light signal of far-end, and light signal is demodulated to vision signal, in the present embodiment, realize that by the PON network equipment of this part can be transformed as purposes such as cell monitorings owing to upload signal.Its operation wavelength of receiving-member is 1310nm, is to belong to analog machine, and its transmission rate is at 622Mbps.
Parts 3: user terminal video optical transceiver receiving-member, be connected by optical fiber with the emission element 1 of described local side video optical multiplexer, be used for the light signal demodulation of will receive and deliver to copper axle distributor, its operation wavelength is 1310nm, belong to analog machine, its transmission rate is at 622Mbps.
Parts 4: user terminal video optical transceiver emission element, be used for being used with the video optical multiplexer receiving-member of local side, the vision signal that will transmit is modulated on the light signal, and transmits in optical fiber, and its operation wavelength is 1310nm.In an embodiment, realize that by the PON network equipment of this part can be transformed as purposes such as cell monitorings owing to upload signal.Its operation wavelength is 1310nm, is to belong to analog machine, and its transmission rate is at 622Mbps.
Parts 5: analog signal converter is used for converting the analog electrical signal of optical receiver to the signal that transmits or the signal that the signal of copper axis cable is changed into the optical transceiver emission element on coaxial cable.
Parts 6: the optical line terminal of ether optical-fiber network (OLT), the PON system all adopts independently 2 wavelength in the present embodiment, 1 up wavelength and downstream wavelength.Be used for transmission of digital signals, realize communicating by letter with the optical network unit (ONU) of far-end, thereby expanded the uplink and downlink bandwidth of cable network, OLT can leave in the core machine room.
Parts 7: Wavelength division multiplexer/demultiplexer spare, the one end is connected with parts 6 with parts 2 respectively by optical fiber; Be used for compound or reduce the light signal of existing cable TV (CATV) 1310nm and the signal of existing P ON network, in downlink transfer, the optical multiplexed signal of the light signal of 1310nm and 1550nm, 1490nm is incorporated into an optical fiber transmits.
Parts 8: wavelength-division demultiplexing/multiplexing device, the one end is connected by optical fiber with the other end of described parts 7, and its other end is connected with parts 9 with described parts 4 respectively by optical fiber.Be used for reduction or the light signal of compound existing cable TV (CATV) 1310nm and the signal of existing P ON network, in downlink transfer, the light signal of 1310nm sent into original catv network, the light signal of 1550nm and 1490nm is sent into the PON network.
Parts 9: optical branching device is used for energy mean allocation with the light signal of same wavelength to a plurality of output ports, to increase the quantity of optical network unit (ONU).Each optical branching device can connect 2～64 optical network units by optical fiber in the present embodiment.On fibre circuit, each OLT is equipped with the optical network unit of 1 optical branching device and corresponding port number and forms an EPON network.These parts 9 can use the product of fused biconical taper, also can use the splitter based on the plane light wave waveguide technology.
Parts 10: a plurality of optical network units (ONU), each PON system is equipped with mutually deserved ONU quantity according to the optical branching device port number.ONU adopts 2 optical wavelength to transmit the uplink and downlink data respectively.Same PON system adopts identical wavelength up and down, shares same luminous power.ONU leaves in the user building.
Parts 11: cable bridge device is used for the signal of the Ethernet of ONU transmission directly is transformed into wired copper axis cable.
Parts 12: the copper y axis amplifier y, be used for the analog signal of the output of the analog signal converter of parts 5 output is amplified, make the distance of transmission farther.
Parts 13: copper axis distributor, carry out the analog signal of transmitting on the copper axle five equilibrium and send into the user.The output signal of parts 5 analog signal converters inserts a plurality of user terminals by after amplification and distributing.
Claims (10)
1, a kind of novel wired network system is characterized in that comprising:
The emission element of local side video optical multiplexer, the vision signal that is used for transmitting is modulated to light signal;
The receiving-member of local side video optical multiplexer is used for light signal is demodulated to vision signal;
User terminal video optical transceiver receiving-member is connected by optical fiber with the emission element of described local side video optical multiplexer, is used for the light signal demodulation and the transmission of will receive;
User terminal video optical transceiver emission element;
Optical line terminal;
Wavelength division multiplexer/demultiplexer spare, the one end is connected with described optical line terminal with the receiving-member of local side video optical multiplexer respectively by optical fiber; Be used for cable TV light signal and network light signal compound or the reduction different wave length;
Wavelength-division demultiplexing/multiplexing device, the one end is connected by optical fiber with the other end of described Wavelength division multiplexer/demultiplexer spare, and its other end is connected with optical branching device with described user terminal video optical transceiver emission element respectively by optical fiber; Be used for reduction or compound cable TV light signal and network light signal;
Optical branching device is used for energy mean allocation with the light signal of same wavelength to a plurality of output ports;
A plurality of optical network units, each described optical network unit is connected with an output port of described optical branching device.
2, novel wired network system according to claim 1, it is characterized in that: the receiving-member of the emission element of described local side video optical multiplexer, local side video optical multiplexer and described user terminal video optical transceiver receiving-member, user terminal video optical transceiver emission element are analog machine, and its operation wavelength is 1310nm.
3, novel wired network system according to claim 1, it is characterized in that: also comprise the analog signal converter that is connected with described user terminal video optical transceiver receiving-member, be used for converting the analog electrical signal of user terminal video optical transceiver receiving-member to the signal that on coaxial cable, transmits or the signal that the signal of copper axis cable is changed into user terminal video optical transceiver emission element.
4, novel wired network system according to claim 1 is characterized in that: described optical line terminal is the ether optical network device of independent up wavelength and downstream wavelength.
5, novel wired network system according to claim 1 is characterized in that: described optical branching device is a fused biconical taper splitter or based on the splitter of plane light wave waveguide technology.
6, novel wired network system according to claim 1 is characterized in that: the operation wavelength of described optical line terminal and described optical network unit is 1490nm and 1550nm.
7, novel wired network system according to claim 1 is characterized in that: also comprise the cable bridge device that links to each other with optical network unit, the conversion of signals that is used for described optical network unit is transmitted is to wired copper axis cable.
8, novel wired network system according to claim 3 is characterized in that: also comprise the copper y axis amplifier y that is connected with described analog signal converter, be used for the analog signal of described analog signal converter output is amplified.
9, novel wired network system according to claim 8 is characterized in that: also comprise the copper axis distributor that is connected with described copper y axis amplifier y, use the analog signal that will transmit on the copper axle to carry out five equilibrium and send into the user.
10, novel wired network system according to claim 1 is characterized in that: the quantity of described optical network unit is 2～64.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200739714U CN201114072Y (en) | 2007-08-22 | 2007-08-22 | Novel wired network system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200739714U CN201114072Y (en) | 2007-08-22 | 2007-08-22 | Novel wired network system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201114072Y true CN201114072Y (en) | 2008-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200739714U Expired - Lifetime CN201114072Y (en) | 2007-08-22 | 2007-08-22 | Novel wired network system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201114072Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809429A (en) * | 2009-03-05 | 2018-11-13 | Adc电信公司 | Method, system and equipment for being integrated into wireless technology in fiber optic network |
| CN110336971A (en) * | 2019-06-25 | 2019-10-15 | 王兴文 | A kind of cable broadband speed-raising capacity-enlarging system |
-
2007
- 2007-08-22 CN CNU2007200739714U patent/CN201114072Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108809429A (en) * | 2009-03-05 | 2018-11-13 | Adc电信公司 | Method, system and equipment for being integrated into wireless technology in fiber optic network |
| CN110336971A (en) * | 2019-06-25 | 2019-10-15 | 王兴文 | A kind of cable broadband speed-raising capacity-enlarging system |
| CN110336971B (en) * | 2019-06-25 | 2021-08-24 | 王兴文 | Wired broadband acceleration capacity expansion system |
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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: SHANGHAI FUTURE BROADBAND TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANGHAI FUTURE BROADBAND TECHNOLOGY AND APPLICATION ENGINEERING RESEARCH CENTER CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 200336 Shanghai City Honggu Road No. 150 Patentee after: Shanghai B-Star Broadband Technology Co., Ltd. Address before: 200336 Shanghai City Honggu Road No. 150 Patentee before: Shanghai B-STAR Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080910 |
|
| CX01 | Expiry of patent term |