面向物联网的多元标识映射模型

现有的物联网中存在多种信息标识方式,感知数据通过这些标识进行信息传输的过程中,由于标识间缺少严格的映射机制,会产生了信息追溯差,设备感控难的问题,这些问题在一定程度上限制了物联网服务的开放.因此本文以物联网四层模型为基础,综合分析各个层次中信息标识方式,并提出了异构环境下的物联网多元标识映射模型.该模型以物联网信息处理的全过程为主线,重点分析信息在采集、传输、处理和展示过程中的标识映射方式,并建立设备原始感知信息标识与IPv6地址、感知元数据与资源标识、资源标识与资源类标识、资源类标识与服务标识之间的映射方案.通过多元标识映射模型的构建,能够实现物联网信息源的可追溯性与物联网服务对感知元的更优的感控.论文最后在智慧校园原型系统上验证了本模型的可行性.

Mapping model of multi-identifers oriented to Internet of Things

Although in the course of messages transport of the perception data, there are many diferent methods of identifers information on the Internet of Things（IOT）, a strict mapping mechanism is missed which leads to many difculties in tracing information and controlling devices, further undermining IOT services opening. On the basis of four layer model of IOT, this paper comprehensively analyzes the marking methods of information in each layer, and proposes a new mapping model of diversifed identifers on IOT in heterogeneous network structures.In light of the whole processing of information on IOT, we focus on analyzing the identifers mapping methods of information in adopting, transmission, processing and displaying and establishes new mapping methods to identify the information identifers from origin devices and IPv6 address, meta data and resource identifers,resource identifers and resource catalogue identifers. By building a diversifed identifers mapping model, we gain a better identifcation and control of metadata and can retrace the information source under IOT services.Finally, the author verifed the feasibility through the prototype of smart campus.