Name
Title | ||
|---|---|---|
A practical implementation of distributed system control over an asynchronous Ethernet network using time stamped data |
Abstract | ||
|---|---|---|
With the increasing use of Ethernet for real-time control of distributed dynamic systems, and inexpensive processing power at the sensor and actuator nodes, there is a growing interest in the process control community to move towards “model based” distributed control. Prior work shows that the lack of precise time synchronization is a critical hindrance to reliable model generation or estimation in networked distributed systems. This paper explores the use of IEEE 1588 Precision Time Protocol (PTP) to improve the fidelity of model estimates and the reliability of control messaging. The implemented controller is tested on a control system testbed augmented with PTP based time stamping and shows substantially improved tracking performance when compared to a similar controller without precise time knowledge. This improvement was achieved by building a propagated estimation of the master system to provide a reference tracking signal for the slave system, a technique that would not be feasible without time synchronization. |
Year | DOI | Venue |
|---|---|---|
2010 | 10.1109/COASE.2010.5584532 | Automation Science and Engineering |
Keywords | Field | DocType |
actuators,distributed control,local area networks,precision engineering,predictive control,process control,protocols,sensors,synchronisation,IEEE 1588 precision time protocol,actuator node,asynchronous Ethernet network,distributed dynamic system,distributed system control,master system,model based distributed control,networked distributed system,precise time synchronization,process control,real-time control,reference tracking signal,sensor node,slave system,time stamped data,PTP,data quality,networked control,time synchronization,time-stamping | Asynchronous communication,Synchronization,Control theory,Real-time Control System,Precision Time Protocol,Real-time computing,Ethernet,Process control,Control system,Engineering,Distributed computing | Conference |
ISBN | Citations | PageRank |
978-1-4244-5447-1 | 3 | 0.81 |
References | Authors | |
4 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Dhananjay M. Anand | 1 | 10 | 4.81 |
| Jeffrey G. Fletcher | 2 | 3 | 0.81 |
| Ya-Shian Li-Baboud | 3 | 16 | 3.37 |
| James R. Moyne | 4 | 209 | 72.77 |