Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/13967
Title: Dynamic scheduling of real-time control systems
Authors: QIAN LIN
Keywords: task on-line urgency, dynamic scheduling, sampling frequency, aperiodic sampling, performance index change rate, scheduling constraints
Issue Date: 26-May-2004
Source: QIAN LIN (2004-05-26). Dynamic scheduling of real-time control systems. ScholarBank@NUS Repository.
Abstract: In this thesis, a systematic way to evaluate the task on-line urgency change in real-time is developed. Based on this on-line task urgency, a dynamic scheduling algorithm for on-line adjustment of task periods is proposed. An aperiodic sampling method is employed in the dynamic scheduling algorithm to improve the efficiency of CPU usage. Task periods are regarded as variables dependent on the on-line performance index change rate of the tasks and system scheduling constraints. Simulation results are presented to compare our on-line dynamic scheduling algorithm with the traditional designed scheduling algorithm. The simulation results show that with on-line dynamic scheduling the system performance is improved.
URI: http://scholarbank.nus.edu.sg/handle/10635/13967
Appears in Collections:Master's Theses (Open)

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