Snoop: an expressive event specification language for active databases
Data & Knowledge Engineering
ACM Computing Surveys (CSUR)
GPSR: greedy perimeter stateless routing for wireless networks
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
GHT: a geographic hash table for data-centric storage
WSNA '02 Proceedings of the 1st ACM international workshop on Wireless sensor networks and applications
The cougar approach to in-network query processing in sensor networks
ACM SIGMOD Record
Data-centric storage in sensornets with GHT, a geographic hash table
Mobile Networks and Applications
Hood: a neighborhood abstraction for sensor networks
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Sensor network-based countersniper system
SenSys '04 Proceedings of the 2nd international conference on Embedded networked sensor systems
TAG: a Tiny AGgregation service for Ad-Hoc sensor networks
OSDI '02 Proceedings of the 5th symposium on Operating systems design and implementationCopyright restrictions prevent ACM from being able to make the PDFs for this conference available for downloading
EnviroSuite: An environmentally immersive programming framework for sensor networks
ACM Transactions on Embedded Computing Systems (TECS)
The regiment macroprogramming system
Proceedings of the 6th international conference on Information processing in sensor networks
Programming sensor networks using abstract regions
NSDI'04 Proceedings of the 1st conference on Symposium on Networked Systems Design and Implementation - Volume 1
Managing context evolution in pervasive environments
Proceedings of the 2nd International Conference on PErvasive Technologies Related to Assistive Environments
The SpaTeC composite event language for spatio-temporal reasoning in mobile systems
Proceedings of the Third ACM International Conference on Distributed Event-Based Systems
Specifying and detecting spatio-temporal events in the internet of things
Decision Support Systems
| Hi-index | 0.00 |
We propose a sensornet programming model based on declarative spatio-temporal constraints on events only, not sensors. Where previous approaches conflate events and sensors because they are often colocated, a focus on events allows programmers to specify their intent more directly, and better supports remote sensing devices such as cameras, microphones, and rangefinders. In our model, complex events are specified as aggregations of events in time or space, without regard to sensor locations or communication paths. New techniques are required to aggregate events based on these constraints without knowledge of nearby nodes. We present a decentralized, scalable event detection framework that allows for efficient in-network aggregation without coupling events and sensors. First, we describe a SQL-style declarative language with spatio-temporal constraints between events that can be used to express complex events. Next, we show how these complex events can be assembled efficiently. The distributed event detection mechanism scales to very large networks, load balances work across sensors, and is fault tolerant to network partitions and node failure.