Security issues in service oriented manufacturing architectures with distributed intelligence

Abstract

The paper discusses the main classes of shop floor devices relative to distributed intelligence for product-driven automation in heterarchical control. The intelligent product (IP) concept is enhanced with two additional require-ments: standard alignment and SOA capability. The paper classifies IPs from SOA integration point of view and introduces a formalized data structure in the form of a XSD schema for XML representation. We propose a security solution for service oriented manufacturing architectures (SOMA) that uses a public-key infrastructure to generate certificates and propagate trust at runtime (during product execution) for embedded devices that establish IPs on board pallets and communicate with shop floor resources. Experimental results are provided.