| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a fire detector capable of surely and highly precisely detecting fire caused in a tunnel. <P>SOLUTION: The fire detector 1 detects the fire in the tunnel AT comprises: an optical fiber temperature detection means (an optical fiber temperature sensor) 2 longitudinally laid on the inner wall of the tunnel AT and detecting temperature in the tunnel AT; imaging means (surveillance cameras) 3, 3 provided at specified intervals in the tunnel AT and image-picking up the interior of the tunnel AT; and a processing means (a processor) 4 detecting the fire in the tunnel AT based on temperature data from the optical fiber temperature detection means 2 and picture data from the imaging means 3, 3. <P>COPYRIGHT: (C)2004,JPO</p> |
