Distributed event-based resource-oriented EPCglobal middleware using GPC

From its primal application in supply chain visibility using RFID, EPCglobal has expanded to embrace different IoT domains. With the interest of integrating diverse heterogeneous sensors/ actuators(Things) for distributed mobile IoT applications, a middleware that can address the requirements of heterogeneity and scalability is necessary. For mobile-connected devices, event-based middleware suits well as it loosely associates them; also, a common set of abstraction (thing model) is needed among heterogeneous things and applications to facilitate data exchange. In this article, we introduce a resource-oriented event-based middleware into EPCglobal architecture for IoT framework. It specifically addresses interoperability and scalability by proposing a distributed Publish/Subscription model using Global Product Classification (GPC) as a resource description for smart devices. This paper describes extension of GPC and its usage as service description in resource modeling, resource-oriented Publish/Subscription model, its evaluation and demonstration.