Paper Info
Title
Realistic case studies of wireless structural control
Abstract
Wireless Structural Control (WSC) systems can play a crucial role in protecting civil infrastructure in the event of earthquakes and other natural disasters. Such systems represent an exemplary class of cyber-physical systems that perform close-loop control using wireless sensor networks. Existing WSC research usually employs wireless sensors installed on small lab structures, which cannot capture realistic delays and data loss in wireless sensor networks deployed on large civil structures. The lack of realistic tools that capture both the cyber (wireless) and physical (structural) aspects of WSC systems has been a hurdle for cyber-physical systems research for civil infrastructure. This advances the state of the art through the following contributions. First, we developed the Wireless Cyber-Physical Simulator (WCPS), an integrated environment that combines realistic simulations of both wireless sensor networks and structures. WCPS integrates Simulink and TOSSIM, a state-of-the-art sensor network simulator featuring a realistic wireless model seeded by signal traces. Second, we performed two realistic case studies each combining a structural model with wireless traces collected from real-world environments. The building study combines a benchmark building model and wireless traces collected from a multi-story building. The bridge study combines the structural model of the Cape Girardeau bridge over the Mississippi River and wireless traces collected from a similar bridge (the Jindo Bridge) in South Korea. These case studies shed light on the challenges of WSC and the limitations of a traditional structural control approach under realistic wireless conditions. Finally, we proposed a cyber-physical co-design approach to WSC that integrates a novel holistic scheduling scheme (for sensing, communication and control) and an Optimal Time Delay Controller (OTDC) that substantially improves structural control performance.
Year
DOI
Venue
2013
10.1145/2502524.2502549
ICCPS
Keywords
Field
DocType
wireless sensor,optimal control,scheduling,close-loop control,mississippi river,bridges (structures),civil infrastructure,wireless cyber-physical simulator,telecontrol,south korea,wireless sensor network,structural engineering,cyber-physical systems,realistic tool,physical system,sensor network simulator,cyber,realistic wireless model,delays,jindo bridge,feedback,wireless structural control,structural model,optimal time delay controller,cape girardeau bridge,multistory building,realistic delay,signal traces,realistic simulation,feedback control loop,wireless sensor networks,wsc systems,cyber-physical co-design approach,wireless structural control systems,realistic case study,simulink,tossim,buildings (structures),holistic scheduling scheme,closed loop systems,realistic wireless condition,wcps,benchmark building model,sensors,wireless communication,cyber physical system,cyber physical systems,control systems
Key distribution in wireless sensor networks,Control theory,Wireless,Data loss,Scheduling (computing),Computer science,Real-time computing,Cyber-physical system,Building model,Wireless sensor network
Conference
ISSN
Citations 
PageRank 
2375-8317
18
0.94
References 
Authors
19
8
Name
Order
Citations
PageRank
Bo Li11314.88
Zhuoxiong Sun2682.59
Kirill Mechitov329020.91
Gregory Hackmann456533.55
Chenyang Lu56474385.38
Shirley Dyke6498.18
Gul A. Agha72947222.03
Billie F. Spencer, Jr.8204.01