说明：   本文以数字图像处理为基础，主要设计了监控环境中的背景图像提取、火灾火焰和人为入侵的综合判断算法，并给出算法程序流程图和有关的实验数据，实验证实了此算法是简单且有效的。
(This paper is based on digital image processing, mainly designed to monitor the environment background image extraction, and man-made fire flame to judge the invasion of a comprehensive algorithm and the algorithm flow chart of procedures for experimental data, the experiment confirmed that this algorithm is simple and effective.)