基于DS理论瓦斯监测证据融合策略研究

Research on Gas Detection Evidence Integration Strategy Based on DS Theory

为了提高煤矿瓦斯监测系统决策与预判能力,将传感器采集的数据信息转化为满足DS证据理论归一化的基本概率分配,针对DS证据理论合成高冲突证据失效的问题,提出一种新的加权平均方法。该方法引入各证据与平均证据的偏离度辨别出与平均证据差异较大游离证据并用平均证据替换,有效地降低了证据间冲突程度,应用分析中高度冲突瓦斯监测证据的有效融合验证了方法的可行性。

This paper presents a new weighted average method.The method adapts the evidence and the average evidence of deviation,it can identify the differences between average evidence and free evidence.Through this method,it can reduce the degree of conflict between the evidences effectively.