CN100336357C - Redundant crossing ring data bus network topological structure - Google Patents
Redundant crossing ring data bus network topological structure Download PDFInfo
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- CN100336357C CN100336357C CNB2005100290698A CN200510029069A CN100336357C CN 100336357 C CN100336357 C CN 100336357C CN B2005100290698 A CNB2005100290698 A CN B2005100290698A CN 200510029069 A CN200510029069 A CN 200510029069A CN 100336357 C CN100336357 C CN 100336357C
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Abstract
The present invention relates to a network topology structure of a redundant cross ring-shaped data bus in the technical field of communication. A backup unit is added at each node of the ring-shaped topology structure of the existing data bus; three pairs of transceivers are respectively arranged in each node and each backup unit. When the nodes are mutually connected by the first transceivers, a backbone link is formed; when the backup units are connected by the first transceivers, a backup link is formed. Each node or each backup unit is connected with the isolated nodes or backup units by the second transceivers to form a bypass link. The third transceivers of each nod are connected with the adjacent backup units and the third transceivers of the backup units are mutually connected with the adjacent nodes to form a cross link. When the single node or a plurality of nodes and a link of the data bus have failure, the present invention ensures that the data is still transmitted constantly; thus, the reliability of the data bus is improved. The network topology structure can be widely applied to the various current data buses.
Description
Technical field
What the present invention relates to is a kind of network configuration of communication technical field, specifically is a kind of redundant crossing ring graphic data bus network.
Background technology
Data/address bus claims data highway again, is the communication system that is made of bus communication control device, transmission medium, network topology structure and communication protocol etc.Along with the extensive application of electronic equipment in the motor platforms such as Aero-Space vehicle and car and boat, develop rapidly based on the electronic comprehensive system of bussing technique.Bus network in the motor platforms such as Aero-Space vehicle and car and boat should also will satisfy the real-time requirement of each functional subsystem by the crosslinked purpose that reaches function synthesized of information.Compare with the bussing technique of general meaning, it requires to have high reliability.Have stronger mechanical oscillation and electromagnetic interference at work at motor platforms such as Aero-Space vehicle and car and boat, temperature, humidity, air pressure, cleanliness factor also be difficult to guarantee, maintenance difficult in use, and the loss that fault causes is often bigger.Therefore such total line products has been strengthened reliability design on hardware and communication protocol, takes isolation, redundant and multiple error detection and recovery mechanism, reduces the error rate, prevents network paralysis, guarantees that bus can reliably working in rugged environment.The at present existing multiple topological structure that is used for bus system is applied, for example bus-type, annular, star-like etc.For these network topology structures, when one or more node in the data/address bus breaks down, all can cause the interruption of link, data can't correctly be transmitted.
Find through literature search prior art, Sachs, M.W. at " Communications Magazine, IEEE " (ieee communication magazine, Volume 34, Issue 8, Aug.1996 pp:40-50) " Fibre Channel and related standards " (optical-fibre channel and relevant standard) article of delivering, introduced the belt topological structure that optical-fibre channel is generally used in this article, but exist when one or more node in the data/address bus breaks down equally, the interruption of link is caused in the capital, and data can't correctly be transmitted.Therefore, the design of bus system topological structure directly has influence on the reliability and the fault-tolerant ability of bus system.
Summary of the invention
The objective of the invention is at the available data bus in the technical deficiency that exists aspect the data transmission credibility, a kind of redundant crossing ring graphic data bus network is proposed, make it can improve the data/address bus data transmission credibility, guarantee when data/address bus is operated in the adverse circumstances, when individual node or a plurality of node and link occurs fault, still can guarantee the reliable transmission of data, thereby improve the reliability of data bus network.
The present invention is achieved by the following technical solutions, the present invention is on the basis of the ring topology of existing data/address bus, introduce the ring bus structure of redundant and cross link simultaneously, constitute redundant crossing ring shape bus structures, thereby guarantee reliability of data transmission.Specifically: each node at the ring topology of available data bus has increased a backup units, in each node and backup units, three pairs of transceivers is set respectively.
For each node, corresponding backup units all is set, guarantee when node breaks down the correct transmission of backup units guarantee of work data.For each node or backup units, three R-T units are set simultaneously.In each node or backup units, node that the first pair of transceiver is direct with adjacent or adjacent backup units link to each other, and constitute trunk link and backup link.In each node or backup units, second pair of transceiver is connected with node of being separated by or backup units in addition, constitutes bypass link.The 3rd pair of transceiver of each node is connected with adjacent backup units, and the 3rd pair of transceiver and the adjacent node of backup units are connected to each other, and constitutes cross link.By this network topology structure, can guarantee when individual node or a plurality of node and link occurs fault, still can guarantee the transmission of data.
When the some nodes in the middle of the trunk link broke down, system can pass through cross link, switches to backup link automatically.If corresponding backup units also breaks down simultaneously, system can pass through bypass link, directly links to each other with next node, guarantees the interrupted transmission of data.Simultaneously, when a certain link occurs fault in the network, system can guarantee the continuation transmission of data by enabling the mode of cross link or bypass link.
The present invention proposes a kind of ring bus structure redundant and the intersection loop of introducing simultaneously, constitute redundant crossing ring shape bus structures, can guarantee when the individual node of data/address bus or a plurality of node and link occurs fault, data are transmission incessantly still, thereby improves the reliability of data/address bus.This network topology structure can be widely used in the current various data/address buss.
Description of drawings
Fig. 1 is network topology structure figure of the present invention
Fig. 2 is the connected mode illustration 1 of data/address bus of the present invention
Fig. 3 is the connected mode illustration 2 of data/address bus of the present invention
Fig. 4 is the connected mode illustration 3 of data/address bus of the present invention
Embodiment
As shown in Figure 1, basic structure of the present invention is ring topology, in order to guarantee reliability of data transmission, for each node has increased a backup units.In each node and backup units, three pairs of transceivers are set respectively.When node interconnects by first pair of transceiver, constitute the trunk link, when each backup units interconnects by first pair of transceiver, constitute backup link.When certain or a plurality of node and link occurs fault in the middle of the trunk link, system automatically switches to backup link, guarantees the interrupted transmission of data.Each node or backup units are connected with node of being separated by or backup units by second pair of transceiver in addition, constitute bypass link.The 3rd pair of transceiver of each node is connected with adjacent backup units, and the 3rd pair of transceiver and the adjacent node of backup units are connected to each other, and constitutes cross link.By cooperatively interacting of bypass link and cross link, can guarantee when a plurality of nodes in trunk link or the backup link or link occurs fault, still can ensure the interrupted transmission of data.Below when data/address bus broke down, the connected mode of data/address bus of the present invention exemplified 3 examples:
Example 1
As shown in Figure 2, when some nodes of data/address bus break down, the connected mode of data/address bus of the present invention is that the break down backup units of adjacent two nodes by cross link and malfunctioning node of node is connected to each other, and forms closed link, thereby guarantees the correct transmission of data.
Example 2
As shown in Figure 3, when some nodes of data/address bus and backup units break down simultaneously, the connected mode of data/address bus of the present invention is that adjacent two nodes of malfunctioning node directly connect by bypass link, though at this moment can't receive and send the data of malfunctioning node, but whole data/address bus still forms the link of a closure, can guarantee the correct transceive data of other node.
Example 3
As shown in Figure 4, when the backup units of adjacent two nodes of data/address bus and one of them node breaks down, the connected mode of data/address bus of the present invention is adjacent node the cooperatively interacting by bypass link and cross link of these two nodes, still make whole data/address bus form closed link, thereby guarantee the correct transmission of data.
Claims (4)
1, a kind of redundant crossing ring graphic data bus network is characterized in that, has increased a backup units at each node of the ring topology of available data bus, in each node and backup units, three pairs of transceivers is set respectively; When node interconnects by first pair of transceiver, constitute the trunk link, when each backup units interconnects by first pair of transceiver, constitute backup link; Each node or backup units are connected with node of being separated by or backup units by second pair of transceiver, constitute bypass link; The 3rd pair of transceiver of each node is connected with adjacent backup units, and the 3rd pair of transceiver and the adjacent node of backup units are connected to each other, and constitutes cross link.
2, redundant crossing ring graphic data bus network according to claim 1 is characterized in that, when certain or a plurality of node and link occurs fault in the middle of the trunk link, system switches to backup link by cross link, guarantees the normal transmission of data.
3, redundant crossing ring graphic data bus network according to claim 1 is characterized in that, if trunk link and corresponding backup link break down simultaneously, system directly links to each other with next node by bypass link, guarantees the normal transmission of data.
4, redundant crossing ring graphic data bus network according to claim 1 is characterized in that, when the trunk link in the network or backup link broke down, system guaranteed the continuation transmission of data by enabling the mode of cross link or bypass link.
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| CNB2005100290698A CN100336357C (en) | 2005-08-25 | 2005-08-25 | Redundant crossing ring data bus network topological structure |
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| CNB2005100290698A CN100336357C (en) | 2005-08-25 | 2005-08-25 | Redundant crossing ring data bus network topological structure |
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| CN1753385A CN1753385A (en) | 2006-03-29 |
| CN100336357C true CN100336357C (en) | 2007-09-05 |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101373990B (en) * | 2008-09-23 | 2012-09-05 | 北京星网锐捷网络技术有限公司 | Method and apparatus for link backup |
| KR101720347B1 (en) | 2011-01-20 | 2017-03-27 | 엘에스산전 주식회사 | Adaptive multi redundant ring topology system and Method for selecting the detour |
| CN102082695B (en) * | 2011-03-07 | 2013-01-02 | 中控科技集团有限公司 | Hot standby redundancy network system and redundancy realization method |
| CN102082696B (en) * | 2011-03-10 | 2012-11-21 | 中控科技集团有限公司 | Redundancy network system and message sending method based on same |
| CN102193543B (en) * | 2011-03-25 | 2013-05-15 | 上海磁浮交通发展有限公司 | Control system based on profibus redundant network topological structure and switching method of control system |
| CN102611567B (en) * | 2011-12-19 | 2016-03-30 | 北京星网锐捷网络技术有限公司 | A kind of group network system of dual-host backup and message transmitting method |
| CN105976594A (en) * | 2016-04-29 | 2016-09-28 | 天津大学 | Double backup transmission link device of array system |
| CN106506245B (en) * | 2016-12-28 | 2019-06-11 | 武汉智能控制工业技术研究院有限公司 | A kind of mobile unit failure reconnection bus interface module |
| CN111917526B (en) * | 2020-07-31 | 2022-12-23 | 许继集团有限公司 | Extensible cross-redundancy communication interface device and method |
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| EP0857003A2 (en) * | 1997-02-03 | 1998-08-05 | Siemens Aktiengesellschaft | Apparatus for realising redundancy circuits of communication devices in ring architectures for the bidirectional transmission of ATM cells |
| CN1207224A (en) * | 1996-11-12 | 1999-02-03 | 株式会社东芝 | Communication network system and controlling of communication path thereof |
| US6643255B1 (en) * | 1998-07-16 | 2003-11-04 | Alcatel | Node of a point-to-multipoint network |
| CN1466280A (en) * | 2002-06-22 | 2004-01-07 | 华为技术有限公司 | Method and device for inversing optical fibre node |
| CN1469595A (en) * | 2002-05-31 | 2004-01-21 | 日本电气株式会社 | Loop network system |
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2005
- 2005-08-25 CN CNB2005100290698A patent/CN100336357C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207224A (en) * | 1996-11-12 | 1999-02-03 | 株式会社东芝 | Communication network system and controlling of communication path thereof |
| EP0857003A2 (en) * | 1997-02-03 | 1998-08-05 | Siemens Aktiengesellschaft | Apparatus for realising redundancy circuits of communication devices in ring architectures for the bidirectional transmission of ATM cells |
| US6643255B1 (en) * | 1998-07-16 | 2003-11-04 | Alcatel | Node of a point-to-multipoint network |
| CN1469595A (en) * | 2002-05-31 | 2004-01-21 | 日本电气株式会社 | Loop network system |
| CN1466280A (en) * | 2002-06-22 | 2004-01-07 | 华为技术有限公司 | Method and device for inversing optical fibre node |
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