A hardware accelerator for data classification within the sensing infrastructure

Cyber Physical Systems are typically deployed using simple sensing nodes and communicate with a complex elaboration and management infrastructure through the internet. The new trend in the design of such systems is to implement significant part of the data elaboration within the sensing infrastructure. Due to the scarce computing capabilities of the nodes and tight performance constrains, it is necessary to equip the nodes with special purpose hardware accelerators. In particular, we discuss a Decision Support System implementation in which special nodes are able to autonomously perform the data classification task. In this paper, we present a node architecture equipped with a special purpose co-processors to perform data classification trough decision tree visiting algorithm, and we discuss its suitability for the WSN domain.