Sentinel System

Intruder Alarm System

Brief description

Intruder Alarm System based on Passive Infra-Red (PIR) motion detector provided by Visonic. It detects the variation of human body temperature within a range of 15m and sensing angle of 180 deg. This system is installed only in array antennas. When a intrusion is detected inside the antenna shell the system drives the electric siren located in the antenna tower. This gives warning to the security staff. Simultaneously the PIR status is transmitted to the Control Room through Telemetry system.

Block Diagram

Circuit Diagram

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