Desigh And Implementation Of Concurrent Data Processing System Based On Participatory Sensing

With the improvement of communication technology and related hardware level, an ordinary mobile phone is gradually transforming from a communication tool to an intelligent terminal equipped with large numbers of advanced built-in sensors with rich computing, sensing and communication capabilities. In this context, a new data collection method, participatory sensing was put out. Different from the traditional sensor network generating data by the sensors, participatory sensing pay more attention to the "people". It uses conscious or unconscious users’participation, so that perceptual system has a wide coverage, data-rich, no additional hardware investment. In this way, a wide range of low-cost sensing data collection system is possible.During the process of sensor data collection by the mobile terminals, it will produce large amounts of raw data, which needs to be received and stored by the server. The data would be provided for the subsequent data integration, data analysis and data visualization modules. In the participatory sensing platform, a server capable of receiving and storing data efficiently is significant, and is the basis of other modules.In this thesis, a participatory sensing platform which is able to collect, upload, analysis and view data is designed and implemented. In the client, user can collect real-time data and upload it, while the server receive the data and analyze the data. As the interface between client and server, in order to achieve a stable and efficient concurrent data processing, a concurrent data processing system on the server side is designed.First, this thesis introduces the related theories and technical background of participatory sensing and incentive strategy. Second, this thesis presents the quirement analysis and system design of the participatory sensing platform. Third, the detailed design and implementation of each subsystem are highlighted. Then unit and integration testing are adopted, which indicates that the entire system achieves the prospective design goals. In the end, the thesis summarizes the whole work of the system, looking forward to future work, and summarizes the work and achievements of the author during the post-graduate period.