CN104022829B - A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output - Google Patents
A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output Download PDFInfo
- Publication number
- CN104022829B CN104022829B CN201410268020.7A CN201410268020A CN104022829B CN 104022829 B CN104022829 B CN 104022829B CN 201410268020 A CN201410268020 A CN 201410268020A CN 104022829 B CN104022829 B CN 104022829B
- Authority
- CN
- China
- Prior art keywords
- ethernet
- data
- node
- output
- center
- 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.)
- Active
Links
Landscapes
- Small-Scale Networks (AREA)
Abstract
The invention discloses a kind of center-side list ethernet port and converge the Ethernet optical transmission chain of output, relate to optical communication field and aim to provide and provide a kind of low cost, the Ethernet optical transmission chain that equipment volume is little.Technical key point: include distalmost end node, link intermediate node and center-side；Distalmost end node transmits to optical fiber for the monitoring image that local monitor video camera exports is packaged into the output of Ethernet data bag；Two paths of data, for receiving Ethernet data and the monitoring image of local monitor video camera output of a distant-end node output, is multiplexed into a road Ethernet data and exports transmission on optical fiber by link intermediate node；Center-side is for receiving the Ethernet data that node on optical fiber transmits, it is de-multiplexed into, obtain the Ethernet data bag of each node, again the Ethernet data bag of each node being carried out multiplexing and obtain a road Ethernet data, the same port of center-side Ethernet switching chip is given in the road Ethernet data output that described multiplexing obtains.
Description
Technical field
The present invention relates to optical communication field.
Background technology
Currently, high Qinghua trend of accompanying image, network high-definition camera becomes the image acquisition mode of main flow, be correspondingly accomplished by building the Ethernet optical fiber transmission network spreading all over each corner, city with by these unattended outdoor camera image transmittings to Surveillance center.When in multinode (up to a hundred nodes) fiber-optic transfer business with separate physical isolation 100M ethernet channel, center-side output need to be by up to a hundred independent physically-isolated 100M Ethernet tandem outputs.Shown in Fig. 1 is exactly the Ethernet optical transmission chain that in prior art, multinode accesses.
All nodes (such as corresponding 100 distant-end nodes) PHY mouth or MII mouth are accessed sufficiently large exchanger chip by original technical scheme, in center-side exchange chip, complete caching and exchange, finally converge to the Ethernet interface output of 100M or 1000M.
Which disadvantageously, need the Ethernet switching chip of tens of or even up to a hundred switching ports in pool side, not only technical sophistication degree is high, and with high costs, and equipment volume is bigger.
Summary of the invention
The technical problem to be solved is: for the problem of above-mentioned existence, it is provided that a kind of center-side list ethernet port converges the Ethernet optical transmission chain structure of output.
The technical solution used in the present invention is as follows: include distalmost end node, link intermediate node and center-side；Described distalmost end node, link intermediate node and center-side are linked in sequence by optical fiber；
Described distalmost end node is for being packaged into Ethernet data bag by the monitoring image that local monitor video camera exports, and described Ethernet data bag is transmitted to optical fiber by the Ethernet switching chip output of this node；
Described link intermediate node is for receiving Ethernet data and the monitoring image of local monitor video camera output of a distant-end node output, two paths of data is multiplexed into a road Ethernet data, and the Ethernet data being multiplexed into a road is input to a port of this node Ethernet switching chip and exports transmission on optical fiber by other ports of this node Ethernet switching chip；
Described center-side is for receiving the Ethernet data that node on optical fiber transmits, it is de-multiplexed into, obtain the Ethernet data bag of each node, again the Ethernet data bag of each node being carried out multiplexing and obtain a road Ethernet data, the same port of center-side Ethernet switching chip is given in the road Ethernet data output that described multiplexing obtains.
Further, described distalmost end node includes CCTV camera, data processing unit and Ethernet switching chip, described CCTV camera is connected with the input of described data processing unit, and the outfan of data processing unit is connected with Ethernet switching chip port；Described data processing unit is for being packaged into Ethernet data bag by the monitoring image that CCTV camera exports；Described Ethernet switching chip is for transmitting the picture control information Ethernet data bag of this node from other port output to optical fiber.
Further, described link intermediate node includes CCTV camera, far-end Ethernet data input port, the first buffer area, the second buffer area, data processing unit, data-reusing unit and Ethernet switching chip；Far-end Ethernet data input port is for connecting optical fiber to receive the Ethernet data of a upper distant-end node output；Described CCTV camera is connected with described data processing unit, and data processing unit is for being packaged into Ethernet data bag by the monitoring image that CCTV camera exports；Described first buffer area is for caching the data that far-end Ethernet data input port receives；Described second buffer area is for the data of data cached processing unit output；Described data-reusing circuit, for the data-reusing in the first buffer area and the second buffer area is become a road, transmits it to a port of this node Ethernet switching chip；Described Ethernet switching chip is for transmitting multiplexing Hou mono-road Ethernet data from its other port output to optical fiber.
Further, described center-side includes Ethernet data input port, package recovery module, data-reusing module and Ethernet switching chip；Described Ethernet data input port is used for the Ethernet data that receiving node transmits from optical fiber；Package recovery module obtains the Ethernet data bag of each node for the Ethernet data demultiplexing transmitted by node；Data-reusing module has with package recovery module and is connected, and obtains a road Ethernet data output for the Ethernet data bag of each node carries out multiplexing；The outfan of described data-reusing module is connected with the same MII mouth of center-side Ethernet switching chip.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1. in the system of the most up to a hundred nodes, even if accessing the Ethernet of up to a hundred separate physical isolation, without at up to a hundred independent Ethernet interfaces of center-side output, or need to design the switch unit of the most up to a hundred ports of framework, greatly simplifie the design of center-side Ethernet-Aggregation part, reduce system cost.
2, present invention offers the lifting of security of system.In the fibre system of the Ethernet access of multiple nodes, owing to switch or exchange chip have such forwarding feature: for forwarding at the port from one port incoming data bag of exchange chip, therefore the present invention cannot mutually access between each node, even if certain node is invaded, invader can not directly obtain the image information of other node, Ethernet interface between all of node is relatively independent, can not form mutually communication.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the high-definition network camera local area network structure figure of prior art.
Fig. 2 is interior joint of the present invention and center-side information exchange principle schematic diagram.
Fig. 3 is the functional block diagram of distalmost end node in the present invention.
Fig. 4 is the functional block diagram of intermediate node in the present invention.
Fig. 5 be in Fig. 4 data-reusing module change a specific embodiment.
Fig. 6 is the functional block diagram of center-side of the present invention.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, in addition to mutually exclusive feature and/or step, all can combine by any way.
Any feature disclosed in this specification, unless specifically stated otherwise, all can be by other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, an example during each feature is a series of equivalence or similar characteristics.
Such as Fig. 2, one embodiment of the present of invention is to apply in the high-definition network camera network that chain multinode accesses.This network includes some nodes, is connected with center-side after each node concatenation, for the ease of clearly describing, node is divided into the farthest node of distance center end and intermediate node.The picture control information that the farthest node of distance center end is only responsible for being photographed by this node CCTV camera is transferred to the node that next distal end is nearer, and it is not as the transmission channel of other node image monitoring information.Intermediate node, also will be as the transmission channel of a distant-end node picture control information on it in addition to needing the picture control information collected by this node CCTV camera and exporting the node nearer to next distal end.
The present invention is by improving with center-side internal structure each node so that the access unit of node can effectively prevent the unauthorized access at a certain node, and the specific practice of the present invention is such that
Such as Fig. 3, in a specific embodiment, described distalmost end node includes CCTV camera, data processing unit and Ethernet switching chip, described CCTV camera is connected with the input of described data processing unit, and the outfan of data processing unit is connected with Ethernet switching chip port；Described data processing unit is for being packaged into Ethernet data bag by the monitoring image that CCTV camera exports；Described Ethernet switching chip is for transmitting the picture control information Ethernet data bag of this node from other port output to optical fiber.
Such as Fig. 4, an embodiment of described link intermediate node is such that including CCTV camera, far-end Ethernet data input port, the first buffer area, the second buffer area, data processing unit, data-reusing unit and Ethernet switching chip.Far-end Ethernet data input port is for connecting optical fiber to receive the Ethernet data of a upper distant-end node output；Described CCTV camera is connected with described data processing unit, and data processing unit is for being packaged into Ethernet data bag by the monitoring image that CCTV camera exports；Described first buffer area is for caching the data that far-end Ethernet data input port receives；Described second buffer area is for the data of data cached processing unit output；Described data-reusing circuit, for the data-reusing in the first buffer area and the second buffer area is become a road, transmits it to a port of this node Ethernet switching chip；Described Ethernet switching chip is for transmitting multiplexing Hou mono-road Ethernet data from its other port output to optical fiber.
Shown in Fig. 5 is an embodiment of data-reusing unit in intermediate node.Data-reusing unit reads the first buffer area and the data of the second buffer area in turn, puts the buffer area within data-reusing unit successively into, finally by the data Serial output in its inner buffer district.It is this that the embodiment of data-reusing module is not limited to Fig. 4, and intermediate node can also use code division multiplexing or self-defining multiplex mode by the Data Synthesis one road Ethernet data in two buffer areas in other embodiments.
Such as Fig. 6, described center-side includes Ethernet data input port, package recovery module, data-reusing module and Ethernet switching chip.
Described Ethernet data input port is used for the Ethernet data that receiving node transmits from optical fiber；Package recovery module obtains the Ethernet data bag of each node according to the Ethernet data demultiplexing that node is transmitted by node by the agreement of a node on it and local ethernet packet package again.
Data-reusing module has with package recovery module and is connected, and obtains a road Ethernet data output for the Ethernet data bag of each node carries out multiplexing；The outfan of described data-reusing module is connected with the same MII mouth of center-side Ethernet switching chip.Data-reusing mode herein can be time division multiplex, code division multiplexing etc..
Operation principle and the technique effect of the present invention are described in conjunction with Fig. 2 below.
Ethernet switching chip has such forwarding feature: for from a port, such as a MII mouth, incoming data bag will not forward at the port, but at other port, such as other MII mouth or PHY mouth, forwards.As shown in Figure 4: tri-Ethernet switching chip of RTU-1, RTU-2, RTU-3 lay respectively in the node of three series connection, connect the Ethernet data of RTU-1, RTU-2, RTU-3 Ethernet switching chip MII mouth, after forwarding step by step, the port 1(port 1 of the Ethernet switching chip all entering center-side is MII mouth), owing to the Ethernet data of 3 RTU all enters the same port of local side exchange chip, so the ethernet port between tri-Ethernet switching chip of RTU-1, RTU-2, RTU-3 can not mutually communication.And other ports of center-side Ethernet switching chip can carry out communication with the Ethernet interface of the Ethernet switching chip of any one node.The visible present invention not only saves the port of center-side Ethernet switching chip, it is also possible to effectively prevent the unauthorized access at node.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any new feature disclosed in this manual or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (4)
1. a center-side list ethernet port converges the Ethernet optical transmission chain exported, it is characterised in that include distalmost end node, link intermediate node and center-side；Described distalmost end node, link intermediate node and center-side are linked in sequence by optical fiber；
Described distalmost end node is for being packaged into Ethernet data bag by the monitoring image that local monitor video camera exports, and described Ethernet data bag is transmitted to optical fiber by the Ethernet switching chip output of this node；
Described link intermediate node is for receiving Ethernet data and the monitoring image of local monitor video camera output of a distant-end node output, two paths of data is multiplexed into a road Ethernet data, and the Ethernet data being multiplexed into a road is input to a port of this node Ethernet switching chip and exports transmission on optical fiber by other ports of this node Ethernet switching chip；
Described center-side is for receiving the Ethernet data that node on optical fiber transmits, it is de-multiplexed into, obtain the Ethernet data bag of each node, again the Ethernet data bag of each node being carried out multiplexing and obtain a road Ethernet data, the road Ethernet data that described multiplexing obtains exports to the same port of center-side Ethernet switching chip.
Center-side list ethernet port the most according to claim 1 converges the Ethernet optical transmission chain of output, it is characterized in that, described distalmost end node includes CCTV camera, data processing unit and Ethernet switching chip, described CCTV camera is connected with the input of described data processing unit, and the outfan of data processing unit is connected with Ethernet switching chip port；Described data processing unit is for being packaged into Ethernet data bag by the monitoring image that CCTV camera exports；The picture control information Ethernet data bag of this node is transmitted to optical fiber by described Ethernet switching chip from other port output.
Center-side list ethernet port the most according to claim 2 converges the Ethernet optical transmission chain of output, it is characterized in that, described link intermediate node includes CCTV camera, far-end Ethernet data input port, the first buffer area, the second buffer area, data processing unit, data-reusing unit and Ethernet switching chip；Far-end Ethernet data input port is for connecting optical fiber to receive the Ethernet data of a upper distant-end node output；Described CCTV camera is connected with described data processing unit, and data processing unit is for being packaged into Ethernet data bag by the monitoring image that CCTV camera exports；Described first buffer area is for caching the data that far-end Ethernet data input port receives；Described second buffer area is for the data of data cached processing unit output；Described data-reusing circuit, for the data-reusing in the first buffer area and the second buffer area is become a road, transmits it to a port of this node Ethernet switching chip；Described Ethernet switching chip is for transmitting multiplexing Hou mono-road Ethernet data from its other port output to optical fiber.
Center-side list ethernet port the most according to claim 3 converges the Ethernet optical transmission chain of output, it is characterised in that described center-side includes Ethernet data input port, package recovery module, data-reusing module and Ethernet switching chip；Described Ethernet data input port is used for the Ethernet data that receiving node transmits from optical fiber；Package recovery module, for the Ethernet data demultiplexing transmitted by node, obtains the Ethernet data bag of each node；Data-reusing module has with package recovery module and is connected, and obtains a road Ethernet data output for the Ethernet data bag of each node carries out multiplexing；The outfan of described data-reusing module is connected with the same MII mouth of center-side Ethernet switching chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268020.7A CN104022829B (en) | 2014-06-17 | 2014-06-17 | A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410268020.7A CN104022829B (en) | 2014-06-17 | 2014-06-17 | A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104022829A CN104022829A (en) | 2014-09-03 |
| CN104022829B true CN104022829B (en) | 2016-08-24 |
Family
ID=51439420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410268020.7A Active CN104022829B (en) | 2014-06-17 | 2014-06-17 | A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104022829B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773986A (en) * | 2016-12-30 | 2017-05-31 | 广州澳视互动传媒有限公司 | Digital Transmission case and fault diagnosis system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114531606B (en) * | 2022-02-22 | 2023-04-11 | 重庆紫光华山智安科技有限公司 | Method, system and equipment for generating packaged video data to be transmitted and transmitting video |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7043541B1 (en) * | 2000-09-21 | 2006-05-09 | Cisco Technology, Inc. | Method and system for providing operations, administration, and maintenance capabilities in packet over optics networks |
| CN102097001A (en) * | 2010-12-22 | 2011-06-15 | 深圳市诺龙实业有限公司 | Video monitor data transmission system |
| CN102665152A (en) * | 2012-05-11 | 2012-09-12 | 武汉邮电科学研究院 | Novel wide-area coverage hybrid wavelength-time division multiplexing passive optical network system |
-
2014
- 2014-06-17 CN CN201410268020.7A patent/CN104022829B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7043541B1 (en) * | 2000-09-21 | 2006-05-09 | Cisco Technology, Inc. | Method and system for providing operations, administration, and maintenance capabilities in packet over optics networks |
| CN102097001A (en) * | 2010-12-22 | 2011-06-15 | 深圳市诺龙实业有限公司 | Video monitor data transmission system |
| CN102665152A (en) * | 2012-05-11 | 2012-09-12 | 武汉邮电科学研究院 | Novel wide-area coverage hybrid wavelength-time division multiplexing passive optical network system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106773986A (en) * | 2016-12-30 | 2017-05-31 | 广州澳视互动传媒有限公司 | Digital Transmission case and fault diagnosis system |
| CN106773986B (en) * | 2016-12-30 | 2019-03-19 | 广州傲视物联网信息技术有限公司 | Digital Transmission case and fault diagnosis system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104022829A (en) | 2014-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2015283976B2 (en) | Data center path switch with improved path interconnection architecture | |
| JP4835422B2 (en) | Network device and communication system | |
| CN100382504C (en) | Cross-over end-to-end connection setting method for main apparatus protection in automatic exchange optical network | |
| CN102316036B (en) | Method for realizing packet transport network (PTN) function on optical transport network (OTN) platform and apparatus thereof | |
| CN204795335U (en) | KVM matrix system | |
| CN110445533A (en) | A kind of dual redundant fiber optic Ethernet Transmission system | |
| CN207124632U (en) | A kind of double gigabit power port fiber optical transceivers and apply its communication system | |
| WO2016086750A1 (en) | Transformer substation process layer message network-sharing port-sharing transmission system | |
| JP6503449B2 (en) | Method and apparatus for transmitting service data | |
| CN102769742A (en) | High-definition video multi-service optical transceiver | |
| CN103763161A (en) | Tri-network integration access module and control method thereof | |
| CN104660989A (en) | Optical fiber-to-full configuration type Camera link real-time image optical transceiver based on FPGA | |
| CN101499851B (en) | Method for interconnecting automatic switch optical network with traditional optical network | |
| CN104022829B (en) | A kind of center-side list ethernet port converges the Ethernet optical transmission chain of output | |
| JP2009017190A (en) | Sonet/sdh apparatus | |
| CN103957477A (en) | Power-grid-service-oriented optical switching method and network | |
| CN104135448B (en) | Include the interchanger of polymorphic type Ethernet coffret | |
| CN104113434B (en) | A kind of data center network redundancy control apparatus using multiple cases group system | |
| CN104009899B (en) | A kind of security protection picture control equipment opens the method for security protection of access network | |
| US9806909B2 (en) | Data switching apparatus and system | |
| CN106506064B (en) | A kind of three-dimensional passive optical access network realizes the system and method for multiple protective and extension function | |
| CN205160704U (en) | Integration streaming media service optical transmitter and receiver | |
| CN104639898B (en) | A kind of multifunctional service transmitting device based on Rapidio exchange networks | |
| CN217116263U (en) | Wavelength division multiplexing optical fiber transmission system | |
| CN103124233A (en) | Signal relay system and implementation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180504 Address after: 610041 No. 3, 1 building, 11 Gaoxin Avenue, Chengdu high tech Zone, Sichuan A Patentee after: Candice Sichuan Micro Control Technology Co Ltd Address before: 610041 3 building, A block, science and Technology Industrial Park, hi tech Zone, No. 11, Gaoxin Avenue, Chengdu High-tech Zone, Sichuan Patentee before: Sichuan Wei Di telecom technology co., ltd |
|
| TR01 | Transfer of patent right |