WIRELESS SENSOR NETWORK BASED COGNITIVE SURVEILLANCE AND REPORTING SYSTEM

Abstract

A wireless sensor network, or a ‘WSN’, is composed of distributed independent sensor devices to supervise the surroundings, such as temperature, sound, vibration, motion etc, and to collaboratively pass their collected data to the end user through a gateway node which is responsible for the sole purpose to act as the bridge between the senor network and the base station. Generally, military setups and other security sensitive areas require tight security cordons to be established around them to prevent any intruder to enter their prohibited premises. A deterministic distribution of sensors is, therefore, required to create a virtual boundary around a highly sensitive institution. A Wireless Sensor Network strategically collects data from various locations of the area of installment, making use of specialized proximity sensors that consume less power and cover a wider range of motion detection. We have designed a security surveillance and reporting system which is based on several homogeneous sensors that are deployed around the concerned area to provide sufficient geographical coverage to help ensure the best possible security over a particularly larger tract. A Security Monitoring Software is designed to provide a serially communicating channel between the WSN and the central computer system. This software will also provide automatic E-mail and SMS facilities to caution the concerned personnel to take appropriate action, thus making it a complete surveillance and reporting system. Another application is designed for continuous video monitoring of the area in the vicinity of each sensor, and it is linked with the base station application software via Local Area Network (LAN) connection. This software application controls camera switching in case of motion detection from multiple sensors at the same time, thus providing a complete video monitoring facility over the WSN