文章基本信息

标题：The Improvement and Evaluation of the Implementation Ability for Deriving Timing Constraints Context in Service-Oriented Home Network
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作者：BenYan ; Hua-Ping Yao ; Masahide Nakamura 等
期刊名称：International Journal of Smart Home
印刷版ISSN：1975-4094
出版年度：2015
卷号：9
期号：12
页码：233-244
DOI：10.14257/ijsh.2015.9.12.24
出版社：SERSC
摘要：Home Network System (HNS) is comprised of networked home appliances and sensors to provide value-added and more powerful services. In order to build high-level HNS service by integrating multiple appliances and sensors, our earlier study proposes a method to derive timing constraints context based on Sensor Service Framework (SSF, which deploys sensor devices as web services to achieve easy development of context- aware application). That method divides timing constraints into two types: the sequential timing constraint and the continuous timing constraint. A high-level context can be defined as conditions expression based on the above two types. Moreover, we present a timer service to implement timing constraints context within SSF, and demonstrate how a high-level context with timing constraint is registered and detected in a real home network system. However, to create high-level context with timing constraints, the developer needs to know the details about pre-existing context of HNS, and also needs the ability to analyze and implement complex logic to detect a high-level timing constraints context. This limitation impedes the efficient creation of high-level context in HNS. Therefore, we propose a method to collectively manage the information of a pre- existing context of HNS in this paper, by which the developer can create high-level timing constraints context more easily than before. As a case study, we implement Enter-Leave context and TV Left On context, and execute an evaluation to prove the effectiveness of this proposal.
关键词：Home Network System (HNS); service-oriented architecture; context-aware ; application; web service; Sensor Service Framework (SSF); timing constraints context