Design Andimplementation Ofascalabledata Repository System For Mobile Participatory Sensing Based On Hbase

With the popularity of smart phones, the arrival of3G and beyond3G era and a rich mixture of apps, the Internet has gone to mobile devices from computers. The last few years have witnessed a significant increase of the proportion of Mobile Internet subscribers in all mobile users and an explosive growth of Mobile Internet business income. Undoubtedly, the Mobile Internet has become a potential alternative to replace original Internet and turn into a new industry leadership. Therefore, the mobile devices have become the most popular network access port, preferable carriers for collecting participants’and environmental information and issuing knowledge. The recent proliferation of mobile devices has ushered in a new pervasive data collection model-participatory sensing. In participatory sensing, individuals explicitly select what sensing modalities and data to be used. By enabling people to interact easily with devices they use everyday,participatory sensing brings to idea of traditional community based data collection to an online and mobile environment.In this thesis, I propose a Scalable Data Repository System for Mobile Participatory Sensing, referred to MDR. MDR is responsible for undertaking high concurrent upload operations, and intelligent reorganization of uploaded data including numerical value such as collected by gravity sensor, gyroscope, light sensor, etc. and multimedia data such as photos, sound records and even videos in the first place. In the meantime, it provides efficient data retrieval for data mining and realtime applications. The objective of this research is to build a fast, stable, efficient and scalable storage and retrieval system.Firstly, this thesis introduces the related theories and technical background of participatory sensing and HBase. Secondly, requirement analysis and system design of the scalable data repository system for mobile participatory sensing based on HBase are depicted in detail. Thirdly, functional tests and performance tests are both adopted, which indicates that the entire system achieves the prospective design goals. In the end, the thesis summarizes the whole work of the system, looks forward to future work, and summarizes the work and achievements of the author during the post-graduate period.