受限空间火灾探测数据融合算法研究

为了实现对受限空间火灾发生情况多传感器自动探测信号处理,建立了基于CO浓度、烟气颗粒浓度、红外视频图像等多传感器探测的火灾探测数据融合分析系统.在受限空间内搭建基于多传感器火灾探测的数据融合分析实验平台.根据火灾红外视频图像的燃烧区域面积及圆形度等特征参数介绍了红外图像识别算法.在三种火灾探测方式特征参数的基础上提出了...

Research on data fusion algorithm of fire detection signal in confined space

In order torealize the multi- sensor automatic detection signal processing for the fireoccurrence in confined space, a fire detection data fusion analysis system wasdeveloped based on multi- sensor detection of CO concentration, smoke particleconcentration, infrared video image, etc. First, build a data fusion analysisexperimental platform based on multi- sensor fire detection in a confinedspace. Then, the infrared image recognition algorithm is introduced accordingto the characteristic parameters such as the area and circularity of the fireinfrared video image. Then, based on the characteristic parameters of the threefire detection methods, a fixed threshold power spectrum detection method isproposed, and data fusion is completed. Finally, based on the analysis andcomparison of the system performance evaluation methods such as the responsetime and alarm accuracy of the fire detection system, the method of multi-sensor detection signals for data fusion and the establishment of disastercriteria is explained. The experimental results show that: after using the datafusion algorithm, the false alarm rate of the detection system is lower thanthe single detection mode, and the alarm time is slightly higher than thesingle detection alarm mode. The data fusion system basically meets therequirements of stable and reliable automatic fire detection and alarm systemand low false alarm rate.