SMOKE DETECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a smoke detection device for increasing the precision of smoke detection by providing two or more detection means (arithmetic means) in consideration of the characteristics of smoke.

SOLUTION: This smoke detection device for detecting the occurrence of smoke within a photographed range by carrying out image processing of an image photographed by a camera is provided with: a detection region setting means for setting a prescribed detection region within a photographed image; a moving detection image preparation means for detecting moving pixels within the detection region by carrying out frame difference; a first arithmetic means for calculating the first type of smoke detection determination elements relating to the detection region; and a second arithmetic means for calculating the second type of smoke detection determination elements relating to the detection region when prescribed conditions are satisfied by an arithmetic value in a certain detection region by the first arithmetic means.

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