Distributed Interval Observers with Switching Topology Design for Cyber-Physical Systems

Abstract

In this paper, the distributed interval estimation problem for networked Cyber-Physical systems suffering from both disturbances and noise is investigated. In the distributed interval observers, there are some connected interval observers built for the corresponding subsystems. Then, due to the communication burden in Cyber-Physical systems, we consider the case where the communication among distributed interval observers is switching topology. A novel approach that combines L∞ methodology with reachable set analysis is proposed to design distributed interval observers. Finally, the performance of the proposed distributed interval observers with switching topology is verified through a simulation example.

Keywords

• cyber-physical systems
• distributed interval observers
• reachable set analysis
• switching topology
• <i>L</i>_∞ technique