Accession Number:

ADA492911

Title:

Dynamic Deployment of Mobile and Stationary Sensor Nodes for the Rapid Exploration of Emergency Areas

Descriptive Note:

Final rept. 12 Apr 2007-2008

Corporate Author:

OXFORD UNIV (UNITED KINGDOM)

Report Date:

2007-09-28

Pagination or Media Count:

60.0

Abstract:

The study of distributed event processing is of major importance in security and surveillance applications. The project is envisioned to assist mission-critical operations by providing command and control systems, which collect sensor information and react promptly to the detection of suspicious high-level events. Events are monitored, composed and propagated within a wireless sensor network that consists of nodes with varying sensing capabilities, including cameras, microphones, magnetometers, temperature and infrared sensors. Detecting complex events in a sensor network includes 1 selecting a suitable event execution plan, i.e. event operators e.g. event automata, and their order of execution, and 2 carefully placing event operators to physical nodes in the network. This effort developed three novel search algorithms suitable for a distributed control environment, Multiple Depth First Search MDFS, Brick and Mortar, and Hybrid Exploration. They are effective in environments with the following assumptions No a priori knowledge, lack of GPS positioning, and no centralized control of agents. The Hybrid Exploration algorithm does make use of RFlD tags and use 5 tag-to-tag communications, and assumes multi-hop communications as in a deployed sensor network.

Subject Categories:

  • Numerical Mathematics
  • Command, Control and Communications Systems
  • Target Direction, Range and Position Finding

Distribution Statement:

APPROVED FOR PUBLIC RELEASE