基于文件的MIL-STD-1553B总线传输研究

MIL-STD-1553B总线适用于小数据量的周期信号以及极少的非周期性信号的传输。为简化机载环境中任务数据传输的设计,提出了基于1553B总线的文件传输需求。简单介绍了1553B总线字格式和消息格式,提出了基于满帧和余帧的大块数据传输方法,构建了文件信息帧和文件数据帧,分析了文件传输的时序和发送及接收的流程。通过设计新的方式命令字实现BC→RT的文件传输,通过设计向量字实现由RT请求传输文件的异步通信。

Study on File-based Transfer of MIL-STD-1553B Data Bus

MIL-STD-1553B data bus is applied in the transmission of periodic signals with a small amount and minimal aperiodic signal.Requirement of file transfer based on 1553B data bus is proposed to simplify the design of mission data transfer in the airborne environment.The format of word and message of 1553B data bus is introduced briefly,and the transfer method of bulk data based on full frame and last frame is presented,and the frame of file information and file data is constructed,and time sequence and the process of sending and receiving of file transfer are analyzed.The file transfer from BC to RT is achieved by designing a new mode command word,and the asynchronous communication of file transfer requested by RT is implemented by the design of the word vector.