A Web-Services Framework for 1451 Sensor Networks

The following paper provides an architectural proposal and integrate common Web-services methodologies (XML based messaging, XML based transformation tools, Web-service tools and platforms) in order to facilitate the development of a Web-services based 1451.1 NCAP information model. A distinct separation exists within the 1451.1 NCAP model based on an internal service structure (characterized as internal methods/functions for representation of the 1451.1 object-oriented models) and an external service structure (characterized as 1451 standards based interfaces to transducer components and external network communications). Network visible operations, such as publishing sensory data-readings, are facilitated via a Web-services communication platform, based on WSDL interfaces and WS-eventing services bound to the SOAP protocol. This work entails in the development of a software/Web-services based tool which can expose internal NCAP function-block operations/methods as network visible operations to a remote HMI. The NCAP's data-model is modelled via an XML data representation which complies with the integrity of the proposed IEEE 1451.1 standard's object-oriented model