Application of predictive control scheduling method to real-time periodic control tasks overrun

作者：Shen Qing^*; Gui Wei hua; Yang Chun hua; Yang Tie jun

来源：Journal of Central South University of Technology, 2007, 14(2): 266-270.

DOI：10.1007/s11771-007-0053-9

• real-time system
• overrun
• predictive control scheduling
• stability

Based on the abort strategy of fixed periods, a novel predictive control scheduling methodology was proposed to efficiently solve overrun problems. By applying the latest control value in the prediction sequences to the control objective, the new strategy was expected to optimize the control system for better performance and yet guarantee the schedulability of all tasks under overrun. The schedulability of the real-time systems with p-period overruns was analyzed, and the corresponding stability criteria was given as well. The simulation results show that the new approach can improve the performance of control system compared to that of conventional abort strategy, it can reduce the overshoot and adjust time as well as ensure the schedulability and stability.

• 出版日期2007-4
• 单位中国人民解放军国防科学技术大学; 中南大学