Internet-of-things edge services for device fault detection based on current signals

A non-transitory computer-readable storage medium coupled to one or more processors and having instructions stored thereon which, when executed by the one or more processors, cause the one or more processors to perform operations for detecting anomalous operation of devices, the operations comprising:

• receiving, by an anomalous operation detection service, current signal data representing a driving current applied to a device over a time period;
• processing, by an anomalous operation detection service, the current signal data through a deep neural network (DNN) module, a frequency spectrum analysis (FSA) module, and a time series classifier (TSC) module to provide a set of indications, each indication in the set of indications indicating one of normal operation of the device and anomalous operation of the device;
• processing, by an anomalous operation detection service, the set of indications through a voting gate to provide an output indication, the output indication indicating one of normal operation of the device and anomalous operation of the device;
• and
• selectively transmitting one or more of an alert and a message based on the output indication.

A system, comprising:

• a computing device;
• and
• a computer-readable storage device coupled to the computing device and having instructions stored thereon which, when executed by the computing device, cause the computing device to perform operations for detecting anomalous operation of devices, the operations comprising:
• receiving, by an anomalous operation detection service, current signal data representing a driving current applied to a device over a time period;
• processing, by an anomalous operation detection service, the current signal data through a deep neural network (DNN) module, a frequency spectrum analysis (FSA) module, and a time series classifier (TSC) module to provide a set of indications, each indication in the set of indications indicating one of normal operation of the device and anomalous operation of the device;
• processing, by an anomalous operation detection service, the set of indications through a voting gate to provide an output indication, the output indication indicating one of normal operation of the device and anomalous operation of the device;
• and
• selectively transmitting one or more of an alert and a message based on the output indication.