QoS-Based Middleware Architecture for Distributed Control Systems

摘要

This paper presents an implementation of a middleware architecture to control dis-tributed systems. The main objective is providing a QoS level between the communicationslayer and the control layer. This architecture is based on the use of a hierarchical communica-tions structure called "logical namespace tree" and a structured set of control processes inter-connected, called "logical sensors graph". This architecture is named Frame Sensor AdapterControl (FSA-Ctrl). In this architecture both: communication layer and control layer can man-age the QoS policies. The communication layer is based on the Data Distribution Service(DDS), a standard proposed by Object Management Group (OMG). Control layer is derivedfrom the Sensor Web Enablement (SWE) model proposed by Open Geospatial Consortium(OGC). By means of QoS policies, control components can take important decisions about dis-tributed questions, like components mobility or information redundancy detection.