Cyber Physical Data Cloud: An Event Processing System for Real-World Awareness

The increasing access both to social and physical sensing data on the Web is opening up novel possibilities of interaction and situational awareness, where people will be making better decisions in their daily lives. The concept of Cyber-Physical Data Cloud (CPDC) aims to provide a global smart environment that can continuously collect natural and social sensing data related to the real world and simultaneously perceive its vertical and horizontal inter-situation, automatically transform useful actionable information as a feedbacks for people in the physical world. This talk introduces a CPDC platform to collect, integrate, and analyze heterogeneous sensing data from networked-people and devices. The platform consists of three main systems: CPSenS (Cyber-Physical Sensor Information System), INTSitu (Inter-Situation Analysis System), and Sticker (SpatioTemporal Information Clustering and Knowledge Extraction). The CPSenS dynamically creates a virtual sensor that searches, gathers, and archives both of physical and social sensing information, like weather, natural phenomena, Web news and SNS, on user's demand. The INTSitu aggregates event information from the heterogeneous sensing data based on spatio-temporal proximity. Then, it discovers latent relationships among events for being aware of local and remote situations about real-world events such as earthquakes, metro train collisions, and disease outbreak. Finally the Sticker facilitates exploration of those sensing and situation information by visualizing space-time geometries in a three-dimension (3D) spatiotemporal space. It helps a user to visually and intuitively understand where and when an event is happening/happened and how its situation is changing/changed over time.