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.