ABSTRACT

This chapter provides sufficient conditions under which a bandwidth-limited eventtriggered system is efficiently attentive. It explores a dynamic quantizer with state-dependent upper bounds on the maximum acceptable delay under which a bandwidthlimited event-triggered system is assured to be efficiently attentive. The chapter focuses on the communication resources needed to assure that performance level. Event-triggered systems sample the system's outputs and transmit those outputs to a controller or an actuator when the "novelty" in the sample exceeds a specified threshold. Well-designed eventtriggered systems are efficiently attentive, which means that the intersampling intervals get longer as the system state approaches the control system's equilibrium point. Efficiently attentive event-triggered systems can share their bandwidth with other non-real-time transmission tasks. Generally speaking, the intersampling interval is growing long, and the inter- sampling intervals are efficiently attentive. The intersampling interval, however, is not necessarily the best way of characterizing the information needed to stabilize an event-triggered system.