密集型母线槽温度监测参数异常点定位方法

Method of abnormal point localization of temperature monitoring parameters in intensive busway

为了快速找到母线槽接头温升监测异常节点,结合ZigBee无线监控母线槽系统节点网络布置,采用一种改进的二次修正接收信号强度指示(RSSI)加权质心定位方法:对路径损耗指数分区域初定;针对参数异常节点实时动态获取修正,得到距离值;利用锚节点自定位二次修正测距距离误差;加权质心计算出节点坐标。在控制计算量与通信成本的同时一定程度上克服了建筑内母线槽系统不同区域信号衰落的变化,仿真实验得到的误差满足母线槽系统监测异常点定位的需求。

In order to quickly find busway connector temperature anomaly monitoring node,an improved secondary correction received signal strength indication（ RSSI） weighted centroid localization method is adopted,combined with ZigBee wireless monitoring busway system node network arrangement. Path loss index is initialized,obtain real-time dynamic correction parameters of abnormal nodes and get the distance value,and the ranging distance error is corrected by anchor node self-localization. Weighted centroid is used to calculate node coordinates. In order to control the computational and communication costs,the signal fading in different regions of the busway system is overcomed to a certain extent,the error of simulation experiment can meet the demand for locationing abnormal node of busway system.