On event based state estimation

On event based state estimation

Sijs, J.
Lazar, M.
TNO Industrie en Techniek

2009

To reduce the amount of data transfer in networked control systems and wireless sensor networks, measurements are usually taken only when an event occurs, rather than at each synchronous sampling instant. However, this complicates estimation and control problems considerably. The goal of this paper is to develop a state estimation algorithm that can successfully cope with event based measurements. Firstly, we propose a general methodology for defining event based sampling. Secondly, we develop a state estimator with a hybrid update, i.e. when an event occurs the estimated state is updated using measurements; otherwise the update makes use of the knowledge that the monitored variable is within a bounded set that defines the event. A sum of Gaussians approach is employed to obtain a computationally tractable algorithm.

Electronics
Control problems
Estimated state
Event-based
Event-based measurement
Gaussians
Networked control systems
State estimation algorithms
State Estimators
Synchronous sampling
Tractable algorithms
Control system analysis
Data transfer
Electric grounding
Estimation
Hybrid computers
Hybrid systems
State estimation
Wireless sensor networks

http://resolver.tudelft.nl/uuid:b0572078-8cb0-4f69-876e-1b97603b60e7

241641

9783642006012

0302-9743

12th International Conference on Hybrid Systems: Computation and Control, HSCC 2009, 13 April 2009 through 15 April 2009, San Francisco, CA, USA. Conference code: 76496, 5469, 336-350

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)

conference paper