'current Accelerometers Brain Brushless direct current motor Convolution Convolutional neural networks Data mining Decision making Deep learning sensor fusion Deep neural networks Extraction Fault detection Faults detection Feature extraction Learning methods Long short-term memory Microphones Predictive maintenance Sensor concepts Sensor fusion Sensors data fusion State of the art accelerometer brushless direct current motor deep convolutional neural networks deep learning sensor fusion faults detection long short-term memory microphone