基于距离加权证据理论的管网泄漏诊断  

Pipe Network Leak Diagnosis Based on Distance Weighted Evidence Theory

作　　者：王秀芳[1,2] 杨琦[2] 田金燕[2] 

机构地区：[1]北京邮电大学信息与通信工程学院,北京100876 [2]东北石油大学电气信息工程学院,黑龙江大庆163318

出　　处：《化工自动化及仪表》2012年第8期1001-1003,共3页Control and Instruments in Chemical Industry

基　　金：黑龙江省教育厅科学技术重点研究项目--基于多信息融合的天然气管网泄露监测(12511Z002)

摘　　要：针对高冲突情况下证据理论融合算法会出现的失效问题,提出基于距离的加权证据理论,根据天然气管网系统的特性,用各个传感器与待诊断点的距离来确定权重系数,利用加权平均与证据理论相结合的方法进行信息融合。Matlab仿真结果表明:该方法既能解决失效问题又能满足实际天然气管网系统特性的需要。Considering the fact that fusion algorithm of weighted evidence theory doesn＇t work in high conflicts,a new evidence theory which based on distance weight was proposed according to the characteristics of heating network;and weight coefficients were decided by the distance between sensors and points to be diagnosed,and the information were integrated with weighted by making use of average and evidence theory.Matlab simulation results show that the distance weighted evidence theory can solve the problem of being out of work and can meet the characteristics of pipe network system.

关 键 词：管网泄漏诊断 加权证据理论 距离权重 

分 类 号：TQ51[化学工程]