文摘
NCSs is defined as a feedback control system that the control loops are closed through a real-time network [40, 60]. The general theory for NCSs has received much attention in recent years, see for examples [73, 97, 108, 167, 244], and the references therein. A switched linear model has also been proposed to describe NCS in [304]. Predictive NCSs have also been investigated in [155, 156]. A sampling period scheduling of NCSs with multiple control loops has been addressed in [187]. The values of packets dropout and network-induced delays in NCSs are derived from the values of the input delay by the viewpoint of a logic ZOH [272]. The logic ZOH is assumed to be both time-driven and event-driven and has the logical capability of comparing the time steps of the arrived control input packets and choosing the latest one to control the process.