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在网络带宽受限的情况下,综合考虑了系统响应的误差和误差变化率,设计了一个共享通信网络的模糊反馈调度器.该调度器采用模糊最大优先调度算法对网络消息发送的优先级进行动态调整.同时定义了一种归一化控制质量衡量指标来评价多回路系统的控制性能.在此评价方法下,对三种不同调度算法在不同随机时延序列下进行了仿真比较.结果表明本文提出的调度算法优化了系统的控制性能,并在不确定运行环境中具有更好的适应性.
Considering the error of system response and rate of change of error when the network bandwidth is limited, a fuzzy feedback scheduler for shared communication network is designed.The priority of fuzzy scheduling algorithm is used to send the priority of network message Dynamic adjustment. At the same time, a normalized control quality measure is defined to evaluate the control performance of multi-loop system. Under the evaluation method, three different scheduling algorithms are simulated under different random delay sequences. The proposed scheduling algorithm optimizes the control performance of the system and has better adaptability in the uncertain operating environment.