Lightning arrester online fault diagnosis method, non-transient readable recording medium and data processing system

The invention belongs to the technical field of power equipment monitoring, and discloses a lightning arrester on-line fault diagnosis method, which comprises the following steps: calculating fluctuation of lightning arrester surface temperature data acquired by a thermal infrared imager in a specific direction to determine whether a lightning arrester is in a fault state or not, and further determining the fault level of the lightning arrester on the basis of the fluctuation. Labor is saved, and the monitoring efficiency and accuracy are improved. The invention also provides a non-transient readable recording medium in which a lightning arrester on-line fault diagnosis program is stored and a system comprising the medium, the program can be called through a processing circuit to execute the method, and the non-transient readable recording medium is suitable for being applied to operation and maintenance management work of real-time on-line monitoring of the lightning arrester. 本发明属于电力设备监测技术领域，公开了一种避雷器在线故障诊断方