The scheduling and control of a class of wireless networked control system is investigated, whose control loop is closed via a shared IEEE 802.15.4 wireless network. By using a gain scheduler within the packet-based control framework and fitting the delay-dependent gains into a time-delay system model, a less conservative self-triggered approach is proposed to determine the sampling update, which consequently enables the design of two network scheduling algorithms to reduce the communication usage. Numerical and TrueTime based examples illustrate the effectiveness of the proposed approach in the sense that it reduces greatly the communication usage while maintaining satisfactory control performance.

研究了一类无线网络控制系统的调度和控制，该系统的控制回路通过共享的IEEE 802.15.4无线网络封闭。通过在基于数据包的控制框架内使用增益调度器并将与延迟相关的增益拟合到时滞系统模型中，提出了一种不太保守的自触发方法来确定采样更新，从而实现了两个网络的设计。调度算法以减少通信使用量。基于数字和TrueTime的示例从某种意义上说明了该方法的有效性，因为它可以在保持令人满意的控制性能的同时大大减少通信使用量。