Design And Implementation Of OneM2M Group Location Service Based On OM2M

The oneM2M protocol is designed to provide a common M2M service layer protocol for the M2M network to further enhance the interoperability of many devices in the M2M network. By defining the concept of CSE, the public M2M service is summarized and split to form 12 CSF public service modules,and the geographic location function module is one of them. OneM2M protocol geographic function module for a single node under the application scenario, but for the geographical distribution of dense nodes lack of consideration.Based on the idea of group locating, this thesis improves the geographic location function module of oneM2M protocol.First of all, the oneM2M protocol geographic location function module for group positioning to consider the shortcomings of the oneM2M protocol geographic location function module to re-design the resources and processes.The geographic location information acquisition policy and the location information store are managed separately by splitting the <locationPolicy> of the geographic location function module in the original oneM2M protocol into a<locationParameter> and a <locationPolicy>. Based on the split of resources,redesign the related processes.Secondly, this thesis bases on OM2M framework to achieve oneM2M protocol geographic location functio. OM2M framework is open-source framework based on oneM2M protocol. It proposes a modular architecture running on top of an OSGi layer making the development swift and effective.Based on the analysis of OM2M framework and the development idea of OM2M framework, this thesis reconstructs the code of oneM2M protocol geographical location function module to implement oneM2M protocol geographic location function module, and Provide front-end display page.In this thesis, we will elaborate the idea and logic of the re-design of geographic location function module of oneM2M protocol, especially discuss the working flow of geographic location function module, discuss the design structure of OM2M framework and explain the design and implementation of geographic location function module.