University of Twente Student Theses


A policy based MBU control system using OSGi

Braber, Kommer (2007) A policy based MBU control system using OSGi.

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Abstract:This thesis presents a policy-based control mechanism for the Mobile Base Unit (MBU), a component of a Mobile Healthcare (M-Health) system. The MBU functions as a gateway between a body area network and the network used by health service providers. A body area network consists of wired sensors and actuators on a human body. The current specifcation of the MBU does not enable the adaptation of changes from the outside, e.g. user preference changes or environment changes. Previous research showed the design of a policy-based control mechanism which enables the adaptability of an MBU [1]. It introduced an architecture that facilitates policies to be evaluated. A policy is a rule which decides to take action in case certain external changes are met. As an implementation of the policy-based control mechanism, a service oriented architecture can be used. In such an architecture, functionalities are put into atomic services. These services communicate with each other. The OSGi framework is an example of a service oriented architecture. An advantage of this architecture is the facilities it provides for services. We apply a policy-based control mechanism to control the MBU. This mechanism includes a refined version of the earlier researched policy-based architecture. We provide simple but realistic specifications and implementations of policies. Also an implementation of the mechanism in OSGi is presented. A prototype of this implementation demonstrates the exibility of the policy-based mechanism and the advantages of service oriented architectures.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:54 computer science
Programme:Computer Science MSc (60300)
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