Decentralized periodic event-triggered control with quantization and asynchronous communication. (August 2018)

• Record Type: Journal Article
• Authors: Fu, Anqi; Mazo, Manuel
• Is Part Of: Automatica. Volume 94(2018)
• Page Start: 294
• Page End: 299
• Publication Date: 2018-08
• Subjects: Decentralized event-triggered control -- Periodic sampling -- Dynamic quantization -- Wireless networked control systems -- Cyber–physical systems; Automatic control -- Periodicals; Automation -- Periodicals; 629.805
• DOI: 10.1016/j.automatica.2018.04.045
• Languages: English
• ISSNs: 0005-1098

Abstract

Abstract: Asynchronous decentralized event-triggered control (ADETC) Mazo Jr. and Cao (2014) is an implementation of controllers characterized by decentralized event generation, asynchronous sampling updates, and dynamic quantization. Combining those elements in ADETC results in a parsimonious transmission of information which makes it suitable for wireless networked implementations. We extend the previous work on ADETC by introducing periodic sampling, denoting our proposal asynchronous decentralized periodic event-triggered control (ADPETC), and study the stability and L 2 -gain of ADPETC for implementations affected by disturbances. In ADPETC, at each sampling time, quantized measurements from those sensors that triggered a local event are transmitted to a dynamic controller that computes control actions; the quantized control actions are then transmitted to the corresponding actuators only if certain events are also triggered for the corresponding actuator. The developed theory is demonstrated and illustrated via a numerical example.