Multi-path transmission data bus redundancy synchronous communication method

Abstract

The invention relates to a multi-path transmission data bus redundancy synchronous communication method, in particular to a 1553B bus controller interface redundancy method for a multi-mode redundancycomputer, and aims to solve the problem that the working state recovery time is too long when the 1553B bus controller interface of the existing multi-mode redundancy fault-tolerant computer is subjected to single-point and reconstruction recovery, and can expand redundant fault-tolerant systems of various machine types. A single machine where each CPU is located is provided with an independent bus communication chip, and a 1553B bus working mode is configured to be a BC mode and is accessed to a bus communication network; the communication mechanism comprises that only one terminal is required to control the bus system at any moment, that is, only one active BC is available on the bus at any moment, wherein the minimum unit of the 1553B communication sequence is a message, the instruction word in the message is BC sending, the state word is RT sending, and the message transmission sequence determines that RT feedback is not received if the BC is not sent; wherein the interval time for the RT to respond to the valid instruction words is 4-12 us, the minimum response-free timeout is 14 us, and the RT response starts to be detected 2 us after the BC sends the words.

Description

technical field [0001] The invention relates to a redundant computer-oriented, digital time-division system command-response multi-channel transmission data bus redundant synchronous communication method, which belongs to the technical field of computers and their applications. Background technique [0002] The current triple-mode redundant fault-tolerant computer used in the prior art has a relatively urgent application demand in the field of safety-critical control because of its higher safety performance. In the field of aerospace, the digital time-division system command-response multiplex transmission data bus (MIL-STD-1553B bus, referred to as 1553B) is a widely used electronic system field bus, which has excellent reliability and high transmission speed. Speed ​​and anti-interference ability characteristics. [0003] There are three types of 1553B bus terminals: bus controller, remote terminal and bus monitor. as attached figure 1 As shown, in the 1553B bus control...

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Problems solved by technology

[0008] The multi-channel transmission data bus redundant synchronous communication method described in this application is to solve the problems in the prior art and propose a multi-mode redundant computer The 1553B bus controller interface redundancy method is designed to solve the problem that the existing multi-mode redundant fault-tolerant computer 1553B bus controller interface is single-pointed and the problem of too long working state recovery time when reconfiguration is restored, and can expand the redundancy of various models. redundant fault-tolerant system

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