Timing is everything: Analysis and synthesis of traffic patterns in event-triggered control

Event-triggered control (ETC) and self-triggered control (STC) are sample-and-hold control paradigms in which sensor data is only updated to the controller when necessary, often aperiodically, in contrast to the well-established periodic sampling paradigm. In ETC, a state-dependent event triggers a transmission, while in STC the controller...

ETCetera: Beyond Event-Triggered Control

We present ETCetera, a Python library developed for the analysis and synthesis of the sampling behaviour of event triggered control (ETC) systems. In particular, the tool constructs abstractions of the sampling behaviour of given ETC systems, in the form of timed automata (TA) or finite-state transition systems (FSTSs). When the abstraction...

Scalable Traffic Models for Scheduling of Linear Periodic Event-Triggered Controllers

This paper addresses the problem of modeling and scheduling the transmissions generated by multiple event-triggered control (ETC) loops sharing a network. We present a method to build a finite-state similar model of the traffic generated by periodic ETC (PETC), which by construction mitigates the combinatorial explosion that is typical of...

Automating scheduler design for Networked Control Systems with Event-Based Control: An approach with Timed Automata

As the use of Networked Control Systems increases, the need for control methods with more efficient network usage also grows. These methods require a more sophisticated way of pre- dicting their traffic, and an approach for this is using a formal modelling approach using Timed Automata. Timed Automata have been used for over 25 years for several...

Abstraction of In-Vehicle Event-Triggered Networked Control Systems for Scheduling

The number of electronic control systems applied in vehicles has increased dramatically over<br/>the years. This trend will only continue with the introduction of novel technologies such as<br/>advanced driver assistance systems (ADAS). To save cable weight and costs in-vehicle control<br/>systems often use shared communication networks. With...