Supporting Personizable Virtual Internet of Things

This paper reports the design and development of an HTML5-empowered Virtual Sensor Editor (VSE) over Internet of Things cloud. VSE is a scalable tool that allows users to design virtual sensors with user-defined dataflow logic, by visually aggregating existing sensors, either physical sensors or user-defined virtual sensors. VSE supports a real-time and historical visualization of sensor values and analytical studies, and is a cross-platform and customizable tool equipped with ability to support verifiable sensor data service compos ability. A discussion on design decisions is presented. Our preliminary work has been applied to NASA Sustainability Base for Smart Building monitoring. Preliminary performance and scalability study is also reported.