【作者】 黄春刚；

【导师】 余翔湛；

【作者基本信息】 哈尔滨工业大学 ， 计算机科学与技术， 2011， 硕士

【摘要】 物联网描绘的美好前景以及它所带来的巨大商业利益,吸引着科研机构、跨国企业、科技公司和各国政府的投入,以物联网为代表的新兴技术一跃成为信息社会的核心产业之一。在各方面因素的推动下,物联网的技术步入一个快速发展的阶段。在拥有海量实体的物联网中,实体的搜索和定位技术成为首先需要解决的问题。搜索处于物联网框架的底层,是物联网的基础,尚未有成熟的解决方案。实体搜索作为物联网中最重要的模块,能够建立实体间紧密的联系,支撑不同的应用层服务。同时,由于物联网中定位服务广泛的应用,位置隐私越来越吸引研究人员和普通大众的关注,而位置隐私保护与服务质量的矛盾、位置隐私需求的个性化特征、位置隐私与其他隐私的强关联性等特征使位置隐私保护成为难以解决的问题。本文首先分析了物联网实体搜索和位置隐私保护的研究现状,梳理了不同的研究思路,明确了物联网实体搜索和位置隐私保护方面的关键性问题。结合已有的实体搜索框架,本文提出一个支持定位隐私保护的物联网实体搜索算法。针对现有算法中没有将实体和服务器统一考虑的问题,在该算法中提出了支持最短路径和地理敏感度的隐私保护算法。经过测试,该算法可以有效地模糊实体位置,而服务器的服务质量并没有受到影响。更多还原

【Abstract】 The bright promise of Internet of Things and the commercial interests brought by it has been attracting research institutions, multinational corporations, technology companies and governments. Internet of Things, which represents emerging technologies, has become one of the core industries of Information Society. Concerned technology has stepped into a stage of rapid development, thanks to multi-factors.The technology of searching and locating an entity among massive others is a top priority. It is elementary to the Internet of Things, and there is no mature solution yet. Searching entity is the most important part of Internet of Things, brings close links between the entities and supports kinds of services in the application layer. Meanwhile, the public and researchers have increasingly been concerned about location privacy protection, which is difficult to deal with due to the contradiction between location privacy and the quality of service, customized needs of privacy protection and the strong correlation between location privacy and other privacies.The paper summarizes current researches of entity searching and location privacy protection of Internet of Things, analyzes different research ideas and specifies the key issues. Based on existing frameworks of entity searching, the paper proposes a new algorithm which supports location privacy protection. Because there is no existing algorithm for the integrated consideration of the request and the response, the shortest path algorithm and geographic sensitivity are used for location privacy protection in the design. Testing proves that the algorithm can change location effectively and quality of service is not affected.更多还原