INTRUDER MONITORING SYSTEM

摘要

PROBLEM TO BE SOLVED: To improve the accuracy of detection for detecting the intrusion of outside person to a facility and to reduce an erroneous warning by combining a tension type sensor and a mat type sensor and providing the mat type sensor at a position away from the tension type sensor for a specified distance. SOLUTION: An intrusion monitoring sensor uses both the tension type sensor 2 and the mat type sensor unit 4. This mat type sensor unit 4 is installed at both the terminals of a plate provided at a position apart from the tension type sensor 2 for 2 to 4 m at least. A tension type sensor supporting pole 3 is installed away from the inside of a fence 1 for 500 mm, for example, and the tension type sensor 2 is fixed. The installation of the mat type sensor unit 4 in a useless space is avoided and the sensor unit is not installed at a sensor non-install part 9 just below the spike of the tension type sensor 2 but installed over all the internal periphery of the fence 1 while defining the width of 2 to 4 m from the sensor non-installing part 9 as a sensor installing part 10.