Research on High Reliability 1553B Bus RT Mode Data Receiving Method

As the core control communication bus in the field of aerospace and weapons, 1553B bus has the characteristics of high reliability, high real-time, reasonable error control measures, high bus efficiency, and is widely used in rocket, satellite, spacecraft and other space fields, as well as modern aircraft avionics system. RT is a slave device of the 1553B bus, subject to the command of the bus controller, responsible for ready to receive and send data, and operate according to the data command of the bus controller, in order to ensure the reliability and efficiency of the 1553B bus system. In RT mode, how to receive bus controller commands correctly, efficiently and reliably and ensure the correct execution of commands has become a crucial part of RT system work. This paper presents three kinds of data receiving software implementation methods under RT mode of 1553B bus, which can realize real-time, accuracy and reliability of software data receiving.