Research On The Entities Searching Technology Of The Internet Of Things Supporting Location Privacy Protection

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.