Development of Underground Perimeter Intrusion Detection System

Abstract

An underground passive security system based on minimal electric charge detection was developed and implemented in the real application field. The fixed length of the sensor cable is buried underground named a security zone. It is generated an alarm when an intruder goes into the security zone. A shielded telecommunication cable can be used for sensing the generated minimal charges by the external intrusion. If two different types of materials are rubbed with each other, minimal electric charges are generated, called the triboelectric effect. Minimal electric charges are generated between the cable shield and conductors when forces and impacts are applied to the underground buried cable. The control device detects and amplifies generated minimal charges due to the intruders on the sensor cable. The proposed system can be shown a reliable intrusion detection rate of up to 96%-97% when we have kept and considered all installation and environmental conditions.