Due to many fire extinguishing divisions, special architectural structure and complex facilities existing in large interior space, it is difficult to extinguish fire. This paper introduces a automatic tracking and locating jet fire extinguishing system which can be used to automatically detect, locate and extinguish fire early. Because of the gravity and the air resistance, the jet-flow cannot be kept in the linear motion after leaving the nozzle, its trajectory is approximate to a curve. Therefore, even if the nozzle can accurately point to the center of the fire source, there may be a large positional deviation between the jet placement and the fire source. To solve this problem, this paper proposes a fire extinguishing method based on multipoint remote image location. ln this method, the live video images taken by the surveillance cameras are used to amend the jet placement on the upper computer' s monitoring plat-form, thus automatically tracking and locating the fire source.%室内大空间场所的空间分割、防火分区多,且建筑结构特殊、设施复杂,灭火困难.自动跟踪定位射流消防系统可用于火灾早期的自动探测、定位和灭火.但由于重力和空气阻力,射流离开喷头后并不是直线运动,其运动轨迹近似一条曲线.因此,即使可实现喷头对火源中心的精确定位,射流落水点与火源之间也存在较大的偏差.针对该问题提出了一种基于远程图像定位的快速灭火方法,在对火源进行自动跟踪的基础上,利用微型监控摄像头采集的现场视频图像,在上位机监控平台上通过修正落水点位置,实现精确定位灭火.
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