Fire detection system for a building

A fire detection system mounted in a large building comprising:

• a plurality of smoke detectors distributed throughout the building for detecting fire;
• a controller activated by one of the smoke detectors sending a fire signal thereto;
• a plurality of alarms distributed throughout the building, the alarms being activated by the controller;
• a plurality of image fetching devices distributed throughout the building, one of the image fetching devices nearest the scene of fire being activated by the controller for generating an AV signal;
• communication means;
• and
• a system monitor center,
• wherein the controller is adapted to generate an AV fire signal contained images from the scene of fire, the communication means is adapted to receive the AV fire signal from the controller and transfer the AV fire signal to the system monitor center via a telephone company, and system monitor center is adapted to process the AV fire signal and send the processed AV fire signal to a plurality of predetermined recipients including a fire department and a police department via a telephone company.