Data subpackage multi-beat retransmission redundancy communication design method based on double channels

The invention discloses a dual-channel-based data subpackage multi-beat retransmission redundant communication design method, which comprises the following steps of: designing key sampling data into independent subpackages through the design of dual-channel serial communication and data subpackage multi-beat retransmission, respectively packaging front and back beats of data and then placing the data in the same frame for sending, the frame loss fault is reported only when the software judges that the sampling data of the two channels are not available. According to the invention, the frame loss failure rate is reduced, the communication transmission is more reliable, the anti-interference capability of an inertial navigation product is effectively enhanced, and the equipment reliability is improved. 本发明公开了一种基于双通道的数据分包多拍重发冗余通讯设计方法，通过双通道串口通讯和数据分包多拍重发的设计，将关键的采样数据设计独立分包，前后两拍数据各自打包后放置在同一帧里发送，仅当软件判断双通道的采样数据都不可用时，才上报丢帧故障。本发明降低了丢帧故障率，通讯传输更可靠，有效增强了惯性导航产品的抗干扰能力，提高了设备可靠性。