High-reliable fault-tolerant system based on bus network

A technology of fault-tolerant system and bus network, applied in the direction of bus network, transmission system, digital transmission system, etc., can solve the problems of low bus bandwidth, computer system failure, and high-speed interactive transmission of data streams, etc., and achieve extensive fault tolerance and transmission The effect of speed increase
CN108768754AActive Publication Date: 2018-11-06XIAN MICROELECTRONICS TECH INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN MICROELECTRONICS TECH INST
Publication Date
2018-11-06

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Abstract

The invention discloses a high-reliable fault-tolerant system based on a bus network. The fault-tolerant system comprises a simulation IO (Input Output) control module, an interface and switching module, an onboard flight control and integrative computation module, a high-performance processing module, a digital IO control module, a router module, and dual-redundancy isomorphic modules corresponding to above six modules; the six modules and the corresponding dual-redundancy isomorphic modules compose four network connections to realize the dual-redundancy hot backup; and thus, the fault-tolerant capacity of the dual-redundancy system is improved through the dual-ring topological structure by using the SpaceWire interconnected bus architecture. Based on a plurality of point-to-point bus interconnected bridge connections, the fault-tolerant system provided by the invention realizes the faster and stronger system fault-tolerant capability by using the dual-ring topological structure.
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Description

technical field

[0001] The invention belongs to the technical field of embedded system design in aerospace applications, and in particular relates to a highly reliable fault-tolerant system based on a bus network. Background technique

[0002] Traditional aerospace high-reliability embedded computers mostly adopt the method of multi-module dual-redundant hot standby, and the system's dual-channel redundant bus mostly uses CAN, 1553, AFDX, etc. Such a dual redundant structure has two obvious disadvantages. First, the system is sensitive to multiple failures. In addition, the traditional space-oriented application buses such as CAN, 1553, and AFDX have low speeds, which cannot meet the requirements of fast and reliable transmission of aerospace product data processing.

[0003] With the increasing demand for high reliability and high performance of military aerospace products, aerospace embedded computer products are required to have higher fault tolerance and higher communi...

Claims

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