A Location Model for Communicating and Processing of Context
A Location Model for Communicating and Processing of Context
复制标题
用于上下文通信和处理的位置模型
DOI：
10.1007/s007790200039
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发表时间：
2002
影响因子：
--
通讯作者：
C. Decker
中科院分区：
文献类型：
--
作者：
M. Beigl;T. Zimmer;C. Decker
摘要：位置是普适计算中最重要的上下文元素之一。在本文中，我们描述了位置模型、空间感知通信模型以及利用位置来处理和通信上下文的模型的实现。所提出的位置模型描述了位置树，其中包含有关组织和结构的人类可读语义和几何信息，以描述对象或上下文的当前位置。所提出的系统不仅致力于在手持设备等功能更强大的设备上工作，而且还致力于嵌入日常制品（使其成为数字制品）的小型计算机系统。模型和设计决策是根据我们从 1998 年到 2002 年构建的具有多个应用程序的三个原型设置的经验做出的。在运行这些原型时，我们收集了设计者、实施者和用户的经验，并将其制定为本文中的指南。所有原型应用程序都大量使用位置信息来提供其功能。我们发现位置不仅可以用作应用程序的信息，而且对于传达上下文也很重要。在本文中，我们介绍了空间感知通信的概念，其中数据是根据数字文物的相对位置而不是其身份来通信的。
Abstract: Location is one of the most important elements of context in ubiquitous computing. In this paper we describe a location model, a spatial-aware communication model and an implementation of the models that exploit location for processing and communicating context. The location model presented describes a location tree, which contains human-readable semantic and geometric information about an organisation and a structure to describe the current location of an object or a context. The proposed system is dedicated to work not only on more powerful devices like handhelds, but also on small computer systems that are embedded into everyday artefact (making them a digital artefact). Model and design decisions were made on the basis of experiences from three prototype setups with several applications, which we built from 1998 to 2002. While running these prototypes we collected experiences from designers, implementers and users and formulated them as guidelines in this paper. All the prototype applications heavily use location information for providing their functionality. We found that location is not only of use as information for the application but also important for communicating context. In this paper we introduce the concept of spatial-aware communication where data is communicated based on the relative location of digital artefacts rather than on their identity.