一种基于REST的物联网资源模型和分布策略

摘要

The Internet of Things is a typical representative of new generation of information technology.With sig-nificant development of sensor networks,embedded technology and wireless communication,the number of IoT re-sources is growing rapidly and the type of IoT resources is more and more complex.According to the characteristics of the IoT resources,this paper puts forward a rest-based IoT resource model and description method.On the Internet of things mass resources storage problem,this paper uses distributed storage strategy based on consistent hashing, moreover.As for the problem that time consumption is too large caused by distributed query during the resources access based on random data placement strategy,this paper puts forward a random data placement strategy based on IoT re-source model and does some relevant tests for process of data resources creating and querying and analyze the advan-tages of the improved strategy on the process of accessing to IoT resources.%物联网是新一代信息技术的典型代表,随着传感器网络、嵌入式技术和无线通信等物联网技术的不断发展成熟,物联网资源数量不断增多,类型愈加复杂.针对物联网资源特点,提出了一种基于 REST 物联网资源模型和资源描述方法.此外,针对物联网海量资源的存储问题,采用基于一致性哈希的分布存储策略,并针对随机数据数据分布在资源访问时分散查询引起的时间开销较大的问题,提出了一种基于物联网资源模型的非随机数据分布策略,对数据资源的存入和获取过程做了相关的测试,分析了该策略相对于随机一致性哈希分布策略在获取资源请求上的优势.