GIS (Geographic Information System) implantable acousto-optic-electric combined perception defect diagnosis method and device

The invention discloses a GIS (Gas Insulated Switchgear) implantable acousto-optic-electric combined perception defect diagnosis method and device, and belongs to the technical field of discharge defect identification. The method comprises the following steps: constructing a partial discharge test loop of typical gas insulation equipment; collecting acousto-optic electric signals during partial discharge of each typical gas insulation device in the discharge test loop; carrying out feature extraction on the acousto-optic electric signal; constructing a characteristic space of partial discharge of typical gas insulation equipment; synchronously and continuously collecting acoustic, optical and electrical signals in the gas insulation equipment through the acoustic-optical-electric combined sensing device; and determining the defect type of partial discharge of the gas insulation equipment. According to the invention, the internal partial discharge defect identification and early warning of the gas insulation e