物联网需求驱动的服务组合方法  

Requirement-driven service composition approach for Internet of things

作　　者：张婷[1] 张鑫[2] 刘志都[1] 

机构地区：[1]南阳师范学院计算机与信息技术学院,河南南阳473000 [2]南阳理工学院软件学院,河南南阳473000

出　　处：《计算机应用研究》2013年第6期1756-1759,1763,共5页Application Research of Computers

基　　金：河南省重点攻关项目(102102210388;112102210408);河南省基础与前沿技术研究计划项目(112300410118)

摘　　要：为实现依据用户需求动态地组合原子服务,形成服务集合,提出一种基于本体的服务组合方法。首先对物联网服务进行多视图建模,使用服务交互模型描述服务与物理实体的交互过程,服务功能模型刻画物理世界中服务的属性和行为,服务状态模型表示服务引起的期望状态变化,并采用扩展的OWL描述面向物理对象的服务。同时,采用多维QoS模型对用户的需求进行建模,使用语义的方法进行服务的匹配与组合,并基于QoS选择满足约束的服务。最后,通过案例研究和实验验证了所提方法的正确性和有效性。According to the desiderata of users,this paper proposed the service combination approach based on ontology to combine atomic services dynamically and form service set.Firstly,it introduced the multi-view modeling of IOT.It described interactions between service and physical entity by interaction model.It depicted service attributes and behaviors in physical world by function model.It represented expectations state conversions caused by service with state model.It expanded the OWL description for physical objects service.Secondly,it adopted QoS multidimensional model for the modeling of requirement.Service matching and combination employed semantic approach.The appropriate composition service that satisfied the user＇s constrains could be selected from service set on the basis of QoS set.Finally,it gave a study case and simulation experiment to verify the correctness and effectiveness of the proposed method.

关 键 词：物联网 需求驱动 自动服务组合 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]