Service Continuity in Networked Control Using Etherware
Abstract
Service continuity is the capability to provide persistent and reliable service, with graceful degradation in the presence of changes. We contend that the implicit need for such a capability is the primary driver of middleware efforts today. This is particularly important for networked control systems interacting with the real world, as they have strict safety requirements. Such systems have to tolerate numerous changes, such as component faults, node failures, and software upgrades, while maintaining operational integrity. We focus on providing service continuity for networked control systems. The various changes in such systems are classified and illustrated using our traffic control testbed. We then describe how Etherware, our middle ware for networked control, handles these changes. Insights into co-design of Etherware, in conjunction with an implementation of our testbed, are presented. The ability of Etherware to provide service continuity, and the associated performance, is demonstrated through illustrative experiments.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2004
- Accession Number
- ADA424768
Entities
People
- Girish Baliga
- Lui R. Sha
- P. R. Kumar
- Scott R. Graham
Organizations
- University of Illinois Urbana–Champaign