Abstract：Dynamic schedule strategies can bring higher resource utilization of network then static ones, while techniques such as least slack time first (LSF) scheduling can hardly be applied to CAN bus. To solve these problems, an event-triggered LSF algorithm based on CAN bus arbitration is proposed. The principle and schedulability analysis of LSF and the overhead of processor are given. Finally the LSF is used to schedule vehicle body system by compare with DM algorithm, the scheduling result verifies that the proposed LSF is feasible, and has perfect performance.
管长焦. 基于最小裕度优先的车身CAN动态调度设计[J]. 电气技术, 2014, 15(03): 67-69.
Guan Changjiao. FTPScheduling of Vehicle Body CAN-Bus with Event-triggered Least Slack Time First Technique. Electrical Engineering, 2014, 15(03): 67-69.
[1] BUTTAZZO G C. Rate monotonic vs EDF: judgment day[J].Real-Time Systems.2005,29(1):5-26. [2] MARGULL U, DIEDERICHS C, MARGULL U, et al. An application based EDF scheduler for osek/vdx[J]. Proceedings of the conference on Design, automation and test in Europe, Munich, Germany, 2008,1045-1050. [3] PEDREIRAS P, ALMEIDA L. EDF message scheduling on controller area network[J]. Computing & Control Engineering Journal.2002,13(4):163-170. [4] TINDELL K, BURNS A, WELLINGS A J. Calculating controller area network (can) message response times[J]. Control Engineering Practice.1995,3(8):1163-1169. [5] TINDELL K, BURNS A. Guaranteeing message latencies on control area network (CAN)[C]. Proceedings of the first international CAN conference, Mainz, Germany, 1994.
2014, Vol. 15 
