Proposal of Web Framework for Ubiquitous Sensor Network and Its Trial Application Using NO2 Sensor Mounted on Bicycle
Takayuki Nakamura, Yukio Kikuya, Yutaka Arakawa, Motonori Nakamura, Yuka Higashijima, Yasuko Yamada Maruo, Masayuki NAKAMURA · 2012
This paper proposes a web framework for a ubiquitous sensor network (u-framework), which supports application development on the uTupleSpace, a special database management system for sensor data. Moreover, an evaluation of this framework applied to a practical system development is also explained in this paper. We first analyzed some examples of vertical-domain services using a wireless sensor network, and found that server-side functions in each of the services share some degree of similarity. The proposed u-framework is built on Ruby on Rails and can save a great deal of effort in the development of such functions. We applied the u-framework to server development for our field trial. In the trial, we ran bicycles equipped with small and high-precision NO2 sensors to gather and share information on air pollution. We detail here the results of the field trial and the effects of the u-framework on server-side development.