普适计算中动态绑定的研究与实现

Research and Implementation of Dyanmic Binding in Pervasive Computing

普适计算环境中,应用程序需要能够自动发现和使用环境中的可利用服务,以适应普适计算的动态性。本文中,作者使用动态绑定机制来完成服务到应用的自动映射,实现并详细阐述了一个基于CORBA的支持动态绑定的中间件原型CWDB。在CWDB中,通过动态绑定层和高性能发现服务的组合来实现普适计算环境中的动态绑定。最后,通过一个位置显示应用来展示CWDB的适用性和其性能。

The pervasive computing is a dynamic environment. The applications in pervasive computing need have an ability to discovery and use the available services automatically. In the paper, the mechanism of dynamic binding is proposed to map the available services to the applications. A CORBA-based middleware for dynamic binding, named CWDB, is implemented and the details are explained. In CWDB, the dynamic binding layer and discovery service are composed to realize the dynamic binding function. At last, an electronic guide application, which shows the user's lo- cation, is implemented to verify the dynamic binding function and performance of CWDB.