Real-time intruder surveillance using low-cost remote wireless sensors

Intruder Detection is needed in order to monitor sensitive passages or gateways. These passages are usually existing in airports, police stations, government buildings, courts or even in special laboratories, like nuclear or chemical laboratories. For security or safety purposes, nobody is usually allowed to walk through these passages without permission and during the working hours. Video streaming monitoring systems are usually expensive in terms of data communication and data analysis, which may need an extra human subject analysis. In addition, to the scene limit of the camera visible area. In this paper we present real-time intruder detection mechanism using remote wireless sensor networks. Pair of wireless sensors are deployed in the monitored passage. In order to detect the motion of intruders, the proposed mechanism adopts the measured Received Signal Strength Indicator (RSSI) of the Radio Frequency (RF) signal between the deployed sensors. The results show that the RSSI of the received signal is reduced significantly when there are intruders in the passage and the amount of reduction depends on the number of intruders.