On the design and control of wireless networked embedded systems

• Wireless networked embedded systems are becoming increasingly important in a wide area of technical fields. In this tutorial paper we present recent results on the design of these systems and their use in control applications, that have been developed within the project Reconfigurable Ubiquitous Networked Embedded Systems (RUNES). RUNES is a European Integrated Project with the aim to control complexity in networked embedded systems by developing robust and scalable middleware systems. New components for control under varying network conditions are discussed for the RUNES architecture. The paper highlights how the complexity of the closed-loop system is increased, due to additional disturbances introduced by the communication system: additional delays, jitter, data rate limitations, packet losses, etc. Experimental work on integration test beds that demonstrates these results is presented, together with motivating links to the RUNES disaster relief tunnel scenario.

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik -- Reglerteknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering -- Control Engineering (hsv//eng)

Keyword

Added delay

Communication system control

Control systems

Embedded system

Fires

Jitter

Middleware

Mobile robots

Networked control systems

Testing

delays

data rate limitation

jitter

packet loss

communication system

closed-loop system

middleware systems

scalable system

robust system

wireless networked embedded systems

Reconfigurable Ubiquitous Networked Embedded Systems

Publication and Content Type

ref (subject category)

kon (subject category)