A hybrid scheduling algorithm of high speed radar tracking system based on CAN bus

In order to meet the development of the information exchange on a high speed radar tracking system, a hybrid scheduling algorithm based on CAN bus is presented. It combines the static (DM, FPS) and dynamic (EDF, LLF) scheduling algorithm. Static scheduling algorithm has fixed priority and can simply be used. However, its priority cannot be changed, which means that deadline of critical messages cannot be guaranteed. Dynamic scheduling algorithm can efficiently improve bandwidth utilization and guarantee the transmission of real-time messages. A hybrid scheduling algorithm is introduced with CAN2.0B extended data frame protocol. Finally, the experiment is carried out on a real network environment. Experimental results show that the proposed method can improve the system transmission efficiency and reliability, and meet the requirement of real-time information exchange.