A middleware for fast and flexible sensor network deployment
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Detecting intra-room mobility with signal strength descriptors
Proceedings of the eleventh ACM international symposium on Mobile ad hoc networking and computing
Proceedings of the 11th international conference on Information Processing in Sensor Networks
Towards robust device-free passive localization through automatic camera-assisted recalibration
Proceedings of the 10th ACM Conference on Embedded Network Sensor Systems
SCPL: indoor device-free multi-subject counting and localization using radio signal strength
Proceedings of the 12th international conference on Information processing in sensor networks
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The transition to Internet of Things depends on the ability to create small, simple applications that are easily written and can be flexibly combined into larger, more powerful systems. We have designed an infrastructure to meet this need and report on a year's experience expanding and using it in an open-plan academic office space with up to a hundred sensors enabling nearly a dozen applications ranging from announcing tea time in the break room, notifying users that the conference room is in use, to printing documents from a web-based map. Applications are simple to write, modular, easily reused, and can incorporate diverse data inputs in a heterogeneous sensing environment. We discuss our efforts to incrementally improve user interfaces and system management.