The BikeNet Mobile Sensing System for Cyclist Experience Mapping

In this paper, we describe our experiences de-ploying BikeNet, an extensible mobile sensing sys-tem for cyclist experience mapping leveraging op-portunistic sensor networking principles and tech-niques. BikeNet represents a multifaceted sensing system and explores personal, bicycle, and environ-mental sensing using dynamically role-assigned bike area networking based on customized Moteiv Tmote Invent motes and sensor-enabled Nokia N80 mobile phones. Among bicycles that rendezvouz en route we explore inter-bicycle networking in the following forms: resource sharing; in situ data sharing both di-rectly, and indirectly via static location-specific stor-age/aggregation entities; bike-to-bike networking via data muling; and real-time and delay-tolerant up-loading of data via a number of sensor access points (SAPs) to a networked repository. The repository provides a cyclist with data archiving, retrieval, and visualization services. BikeNet promotes the so-cial networking of the cycling community through the provision of a web portal that facilitates back end sharing of real-time and archived cycling-related data from the repository. Furthermore, we design and build the sensing system to collect the data to feed into this portal. In this paper, we present: a de-scription of the system architecture and implementa-tion; an evaluation of sensing and inferencing that quantifies cyclist performance and the cyclist envi-ronment; a study of the potential for data and re-source sharing between cyclists en route; a report on networking performance in an environment charac-terized by bicycle mobility and human unpredictabil-ity; as well as describing BikeNet system-user inter-faces. Visit [5] to see how the BikeNet system visual-izes a user’s rides