Artificial Neural Networks for Sensor Data Classification on Small Embedded Systems

In this paper we investigate the usage of machine learning for interpreting measured sensor values in sensor modules. In particular we analyze the potential of artificial neural networks (ANNs) on low-cost micro-controllers with a few kilobytes of memory to semantically enrich data captured by sensors. The focus is on classifying temporal data series with a high level of reliability. Design and implementation of ANNs are analyzed considering Feed Forward Neural Networks (FFNNs) and Recurrent Neural Networks (RNNs). We validate the developed ANNs in a case study of optical hand gesture recognition on an 8-bit micro-controller. The best reliability was found for an FFNN with two layers and 1493 parameters requiring an execution time of 36 ms. We propose a workflow to develop ANNs for embedded devices.

Subjects

Computer Science - Learning

Computer Science - Neural and Evolutionary Computing

Machine Learning

Artificial Neural Networks

Embedded Systems

Hand Gesture Recognition

MLE@TUHH

DDC Class

000: Allgemeines, Wissenschaft

Options

Artificial Neural Networks for Sensor Data Classification on Small Embedded Systems