For the problem of the system performance degradation caused by input saturation

anti-windup compensator is applied to improve the performance. In order to save the network communication resources

a novel adaptive event-triggered mechanism with time-varying parameters is formulated

which can be applied to the situation where the system state cannot be measured directly. Moreover

this event-triggered mechanism can save more network communication resources compared with related event-triggered condition that has fixed parameters. A new Lyapunov function containing the rate of threshold function and exponential term is constructed

and sufficient conditions for asymptotic stability of saturated system are derived by using Lyapunov stability analysis method. An optimization problem is formulated to maximize the estimated domain of attraction for the saturated system. The minimum inter-event time interval is calculated to avoid Zeno behavior. The effectiveness of the theoretical results is verified by simulation example.