面向智能环境的活动信息空间模型

智能环境是一种典型的普适计算环境,集中体现了普适计算的诸多本质特征。如何实现随时随地的信息交互;面对资源变化,如何实现信息交互的平滑过渡,是实现和评价智能环境的关键。但是,由于在智能环境中,资源的异构性、动态性和移动性变得尤为突出,使得其实现颇具挑战性。在分析智能环境信息交互特点和模型需求的基础上,本文提出活动信息空间模型来解决智能环境对信息交互的不同要求。该模型通过对信息单元的抽象,提供三级的信息交互机制,面向信息表示、面向设备和面向使用者。并且,该模型具有在三级信息交互级别上进行平滑过渡的特点,充分适应了智能环境的要求。开发了一个原型系统并应用在老人健康保健中,验证了模型的有效性。

An Active Information Space Model for Smart Environments

The smart information interaction is an important enabling technique for supporting smart environments,and it is challenged by three distinct features,the heterogeneity,dynamism,and mobility,of smart environments,which consist of ubiquitous information,information accessing devices,and people.To address this challenge,this paper presents an active information space model for smart environments,which provides three distinguished features:repre- sentation-oriented,device-oriented,and people-oriented information interaction.These features are achieved by conver- ting primitive information into three levels of active information units,which encapsulates the capabilities of devices and the context of people.As a proof of concept,we have developed a prototype implementation and an elder-oriented ap- plication.The resulted experiments show the effectiveness of this model.