National CPS PI Meeting 2012

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Visible to the public Delays, Clocks, Timing and Reliability in Networked Control Systems: Theories, Protocols and Implementations

Abstract

Wireless networks are increasingly used in networked control systems. An important challenge is to provide delay guarantees for every packet in the system. In this work, we propose a framework for real-time wireless networks. The core of this framework is an analytical model that jointly considers several practical concerns that include the strict delay bound for each packet, the throughput requirement of each client, and the unreliable nature of wireless transmissions.

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Visible to the public Control of Surgical Robots: Network Layer to Tissue Contact

Abstract

The original goals of this project were to take an existing open surgical robot testbed (the RAVEN robot), and to create a robust infrastructure for cyber-physical systems with which to extend traditional real-time control and teleoperation concepts. This is done by adding three new interfaces to the system: