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.