斜度探测器及其在火灾自动探测中的应用

A Slope Detector and Its Application in Automatic Fire Detection

介绍的斜度探测器，能够检测信号变化后的斜率大小，有效地识别出阶跃信号的变化．其斜率判断采用了模糊逻辑方法，使输出信号更加接近实际情况．该探测器与信号检测的趋势算法相结合。

A slope detector is proposed, which is capable of detecting the slope of varied signals and recognizing the variation of the step signals, although these signals do not have a large slope. Fuzzy logic is used in the detector to decide the slope in order to make the signal output better agree with the actual one. A combination of the detector with the trend algorithm in signal detection is applicable to automatic and accurate fire detection. The smoke density(if smoke sensors are used) can also be obtained. Test results show that the ratio of false alarm is very small.