Fire detection system

A fire detection system for an enclosed area having a plurality of detection zones, said system comprising:

• a plurality of infrared (IR) imagers, each IR imager comprising:
• an area array of IR radiation detectors for generating electrical signals of corresponding arrays of IR radiation measurements which are representative of infrared images of a corresponding portion of the enclosed area;
• and
• an image processor for processing said electrical signals of said infrared images to determine if a fire is perceived present in the corresponding portion, and for generating a first signal indicative of said perceived presence of fire;
• at least one fire detector disposed at each detection zone, each fire detector for monitoring the corresponding detection zone of the enclosed area, each fire detector comprising at least one fire byproduct chemical sensor for generating at least one second signal representative of the presence of at least one fire byproduct chemical in the corresponding detection zone, and a first controller governed by the second signals for generating a third signal indicative of the presence of fire in the corresponding detection zone;
• and
• a second controller governed by said first signals generated by the plurality of IR imagers and said third signals corresponding to the plurality of detection zones to confirm that a fire is present in at least one detection zone of the enclosed area.

A fire detection system for a plurality of enclosed areas, each having a plurality of detection zones, said system comprising:

• a plurality of infrared (IR) imagers for each enclosed area, each IR imager comprising:
• an area array of IR radiation detectors for generating electrical signals of corresponding arrays of IR radiation measurements which are representative of infrared images of a corresponding portion of the corresponding enclosed area;
• and
• an image processor for processing said electrical signals of said infrared images to determine if a fire is perceived present in the corresponding portion, and for generating a first signal indicative of said perceived presence of fire;
• at least one fire detector disposed at each detection zone of each enclosed area, each fire detector for monitoring the corresponding detection zone of the corresponding enclosed area, each fire detector comprising at least one fire byproduct chemical sensor for generating at least one second signal representative of the presence of at least one fire byproduct chemical in the corresponding detection zone, and a first controller governed by the second signals for generating a third signal indicative of the presence of fire in the corresponding detection zone;
• and
• a second controller governed by said first signals generated by the plurality of IR imagers of each enclosed area and said third signals corresponding to the plurality of detection zones of each enclosed area to confirm that a fire is present in at least one detection zone of at least one of the enclosed areas.

A fire detection system for an enclosed area, said system comprising:

• a plurality of infrared (IR) imagers oriented to view corresponding portions of the enclosed area, each IR imager of said plurality comprising:
• an area array of IR radiation detectors for generating electrical signals of corresponding arrays of IR radiation measurements which are representative of infrared images of its corresponding portion of the enclosed area;
• and
• an image processor for processing said electrical signals of said infrared images to determine if a fire is perceived present in said portion of the enclosed area, and for generating a first signal indicative of said perceived presence of fire;
• at least one fire detector for monitoring at least a portion of the enclosed area, said fire detector comprising a smoke sensor for generating a second signal indicative of the presence of smoke in the enclosed area, and at least one fire byproduct chemical sensor for generating at least one third signal representative of the presence of at least one fire byproduct chemical in the enclosed area;
• and
• a controller governed by said first signals generated by the plurality of IR imagers, second signal, and at least one third signal to confirm that a fire is present in the enclosed area.

A fire detection system for an enclosed area having a plurality of detection zones, said system comprising:

• a plurality of infrared (IR) imagers, each IR imager comprising:
• an area array of IR radiation detectors for generating electrical signals of corresponding arrays of IR radiation measurements which are representative of infrared images of a corresponding portion of the enclosed area;
• and
• an image processor for processing said electrical signals of said infrared images to determine if a fire is perceived present in the corresponding portion, and for generating a first signal indicative of said perceived presence of fire;
• at least one fire detector disposed at each detection zone, each fire detector for monitoring the corresponding detection zone of the enclosed area, each fire detector comprising a smoke sensor for generating a second signal indicative of the presence of smoke in the corresponding detection zone, at least one fire byproduct chemical sensor for generating at least one third signal representative of the presence of at least one fire byproduct chemical in the corresponding detection zone, and a first controller governed by the second and third signals for generating a fourth signal indicative of the presence of fire in the corresponding detection zone;
• and
• a second controller governed by said first signals generated by the plurality of IR imagers and said fourth signals corresponding to the plurality of detection zones to confirm that a fire is present in at least one detection zone of the enclosed area.

A fire detection system for a plurality of enclosed areas, each having a plurality of detection zones, said system comprising:

• a plurality of infrared (IR) imagers for each enclosed area, each IR imager comprising:
• an area array of IR radiation detectors for generating electrical signals of corresponding arrays of IR radiation measurements which are representative of infrared images of a corresponding portion of the corresponding enclosed area;
• and
• an image processor for processing said electrical signals of said infrared images to determine if a fire is perceived present in the corresponding portion, and for generating a first signal indicative of said perceived presence of fire;
• at least one fire detector disposed at each detection zone of each enclosed area, each fire detector for monitoring the corresponding detection zone of the corresponding enclosed area, each fire detector comprising a smoke sensor for generating a second signal indicative of the presence of smoke in the corresponding detection zone, at least one fire byproduct chemical sensor for generating at least one third signal representative of the presence of at least one fire byproduct chemical in the corresponding detection zone, and a first controller governed by the second and third signals for generating a fourth signal indicative of the presence of fire in the corresponding detection zone;
• and
• a second controller governed by said first signals generated by the plurality of IR imagers of each enclosed area and said fourth signals corresponding to the plurality of detection zones of each enclosed area to confirm that a fire is present in at least one detection zone of at least one of the enclosed areas.