Abstract: The disclosure provides a method for monitoring a short-term voltage stability of a power system. The method includes: obtaining a topology and time series of a current power system; inputting the topology and the time series of the current power system into a trained spatial-temporal graph network model, the trained spatial-temporal graph network model being obtained by classification learning on a spatial-temporal graph network model based on a simulation sample dataset; outputting a status of the short-term voltage stability of the power system; and sending an alarm signal in response to outputting an unstable status of the short-term voltage stability of the power system.

Abstract: Novel tools and techniques for acoustic array detection and imaging are provided. A system includes an acoustic array comprising one or more array panels. Each of the one or more array panels includes a transceiver array of one or more acoustic transceivers, each acoustic transceiver further including a transmitter element configured to generate sound and a receiver element to capture sound. A driver circuit is coupled to a first transceiver array of a first array panel of the one or more array panels, the driver circuit configured to drive individually each transmitter element and each receiver element of the first transceiver array. A controller interface is coupled to the driver circuit, and a controller coupled to the controller interface.

Abstract: Novel tools and techniques for acoustic array detection and imaging are provided. A system includes an acoustic array comprising one or more array panels. Each of the one or more array panels includes a transceiver array of one or more acoustic transceivers, each acoustic transceiver further including a transmitter element configured to generate sound and a receiver element to capture sound. A driver circuit is coupled to a first transceiver array of a first array panel of the one or more array panels, the driver circuit configured to drive individually each transmitter element and each receiver element of the first transceiver array. A controller interface is coupled to the driver circuit, and a controller coupled to the controller interface.