| 摘要 |
A smoke detection method and apparatus (2), which uses the effects of the diffusion of light to identify the presence of smoke in a monitored area, are disclosed. This method comprises the steps of: (a) electronically capturing a sequence of images of a light source (6) in the monitored area, (b) transferring these images into an image buffer (8), (c) scanning these images to identify the chunks of adjacent pixels with brightness values above a prescribed threshold, (d) maintaining the sequence of such chunks obtained from consecutive images in a cluster stack, (e) analyzing the evolution of the features of each of these cluster over a prescribed period of time to identify the patterns that are caused by particle-induced light diffusion, and (f) issuing a prescribed system response in the event such light diffused patterns are identified. |
