SEISMIC RECORDING SYSTEM FOR MONITORING EXTENDED SECURITY BOUNDARIES Russian patent published in 2015 - IPC G08B13/00 

FIELD: physics, signalling.

SUBSTANCE: invention relates to alarm signalling for detecting an intruder in the detection area of an extended security boundary. The sensitive element used in the disclosed seismic recording system is an extended seismic line which detects mechanical vibrations of the ground when an intruder moves on segmented areas of the extended seismic line with monitoring of each of the segments of the area of the security boundary, merged into groups of seismic links. The system consists of a central security post and a plurality of electronic units, designed to generate the number of the segmented area on which intrusion is detected. Each seismic link consists of a pair of seismic detectors mounted in the ground on the security boundary. The electronic units for generating the number of an area are connected to the central security post by a first RS-485 interface line. The seismic links are connected to corresponding electronic units by other CAN interface lines.

EFFECT: higher accuracy of localising a point of intrusion of a security boundary.

6 cl, 7 dwg