Abstract: The present disclosure relates to a voltage detection apparatus and method for determining whether a high voltage at an input terminal exceeds a preset value. The device includes a high-voltage arm and a low-voltage arm, and the low-voltage arm includes a capacitor charging/discharging module, a signal indication module, a threshold selection module, a control module, a signal transmission module, and a signal processing module.

Abstract: Methods and systems for providing data analytics and generating real-time and historical views of network events using a single processing pipeline, managed by a single code base, are presented. A computing device may receive a stream of data indicative of a plurality of events occurring on a network. The computing device may process the stream of data to generate intermediate data and batch data using the single processing pipeline. The intermediate data may be available to generate historical views and the batch data may include a plurality of intermediate data for a time interval. The computing device may generate a historical view of the events based on a subset of intermediate data and the batch data. Finally, the computing device may provide the historical view to a processing layer to enable the computing device to respond to requests for information about the network.