Large sensor networks in applications such as surveillance and virtual classrooms, have to deal with the explosion of sensor information. Coherent presentation of data coming from such large sets of sensors becomes a problem. Thus there is a need to summarize events while retaining the spatial relationship between sensors. Also, such systems are prone to routine failures influenced by hardware, software, or the environment. To recover from such failures, fault containment can be achieved by using redundant sensors. In this paper, we define Fault Containment Unit (FCU), which has built-in alternative actions in the event of failures. However, the combinatorial explosion of alternatives in large scale sensor networks dictates that the design of FCU is hard. Our strategy is to provide an augmented virtual reality interface to a human user by projecting the current state of the system, including camera orientation and objects being tracked, onto a virtual 3D world. We present an interface...
Shichao Ou, Deepak R. Karuppiah, Andrew H. Fagg, E