Recent years have shown a worldwide increase in terrorist bombings. Continuous monitoring for the presence of explosives in public places can improve security of the public and infrastructure. The objective of this research work is to reduce, control, and warn about the forthcoming terrorist activity by precise and quick detection of explosives. This paper proposes a wide area monitoring system using a multi phase wireless sensor network design. W-ReMADE uses multiple wireless sensor nodes integrated with different types of sensors to identify the explosives. Based on diverse orthogonal techniques, the system collects data from the sensing nodes, dynamically aggregates the data and forward to the sink node for further analysis. A mobile node has been introduced to further confirm the suspected objects, thus offering an enhanced target tracking mechanism that reduces number of false alarms. W-ReMADE provides an effective warning mechanism for security threats in public places so that immediate action can be taken against bomb threats.
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