Abstract: Provided are a power level acquisition circuit and apparatus, used for solving the problem in the prior art, when conducting reinforced insulation testing, of work hour wastage and safety hazards.

Abstract: A cabinet monitoring system, method, and apparatus, and an electronic device, and a computer storage medium are provided. Cabinet monitoring devices (KG) acquiring all monitoring data of connected monitored devices (S); generating cabinet control data according to a part of the monitoring data; sending the cabinet control data to the monitored devices (S); uploading a part of the monitoring data to an upper layer monitoring device (KS); receiving upper layer control data of the upper layer monitoring device (KS), and forwarding the upper layer control data to the monitored devices (S); and the upper layer monitoring device (KS) receiving the monitoring data uploaded by each cabinet monitoring device (KG), determining the upper layer control data according to the received monitoring data, and sending the upper layer control data to the cabinet monitoring devices (KG).