EXEHDA-IoT: uma contribuição à Arquitetura do Middleware EXEHDA direcionada à Internet das Coisas

Abstract

In Ubiquitous Computing (UbiComp) computational services are made available at the user of way more as transparent as possible, integrating technologies into their daily lives without the need to have knowledge of the entire computing infrastructure involved. One of the main research fronts of UbiComp is related to the need of the applications have knowledge of its context of interest, and when necessary, react to it. Recent advances in the area of “Internet of Things -IoT” have provided a grow- ing incorporation of computational devices with processing capabilities, communication and sensoring the everyday objects, which are sources of contextual information dis- tributed, featuring the IoT as a promising strategy while alternative for materialization of the UbiComp. However, for the development of context-aware applications in scenarios introduced by IoT, a number of challenges must be overcome. Among these is the concept of infrastructure capable of aquisitar contextual information from a number of heteroge- neous devices, and distributed with limited capacity. Considering this, the main objective of this dissertation is to design mechanisms to meet the demands inherent in IoT, and whose design should to have as premise their integration into the software architecture of the a middleware. More specifically, this master thesis contributed to the Subsystem of Context Adap- tation and Recognition of the EXEHDA in three major aspects: (i) providing support for heterogeneity of the various hardware and software technologies inherent in the devices used in IoT, (ii) adding identification and automatic discovery of sensoring de- vices and actuation (iii) standardizing the form of interoperability between components of the software architecture. In evaluating the EXEHDA-IoT functionality it was used a case study in the field of agriculture, developed with Embrapa Clima Temperado. The results stimulate the continuity of research in the area.