Vibration monitoring system for human activity detection

The monitoring and identification of suspicious activity is necessary for protection of Critical Infrastructure. The protection is extended to an early warning area beyond the physical security perimeter. The early warning area can cover from kilometer to hundred kilometers. The analysis of soil induced vibration by walking, digging, vehicle, can provide the useful information about human activity. In this paper is presented the development of a system for detection of human activity based on a network of vibration sensors. The main goal is to obtain a low power system that can operate continuously during several months. The acquisition hardware uses micro-powered circuits to meet the condition of low power conditions. Also are presented the result of acquisitions samples and identification of human steps.