A WSN-based Intelligent Light Control System Considering User Activities and Profiles
ZigBee-based Bookmark :Auto-Focusing and Auto-Fitting LED Lamp System
Design and Implementation of a Real Time Video Surveillance System with Wireless Sensor Networks
One important goal of surveillance systems is to collect information about the behavior
and position of interested targets in the sensing environment. In traditional video surveillance
systems, the system performance and cost is proportional to the number of deployed video camera.
We propose a real time video surveillance system consisting of many low cost sensors and a few
wireless video cameras. The system allows a group of cooperating sensor devices to detect and
track mobile objects and to report their positions to the sink node in the wireless sensor
network. Then, the sink node uses the IP cameras deployed in the sensing area to record these
events and display the present situations. We also propose a camera control scheme to initialize
the coverage distribution of cameras and support the inter-task handoff operations between
cameras. The simulation result shows that our surveillance system is adaptable to variant
environments and provides real time information of the monitored environment.
Main achievements and outcomes
Research or technology outcomes
The proposed system uses less cameras to provide the same function
as the traditional video surveillance system. We have implemented the proposed system
with 16 sensor nodes and two IP cameras in National Tsing Hua University. The proposed
system is also published in VTC 2008-spring.
