Bridging sensor networks and the Internet on cellular phones: Towards richer and easier-to-use sensor network applications for end-users

Federation of ubiquitous applications to our daily lives requires enabling the use of those applications on terminals that end-users can use without intensive knowledge on computers or networks. This paper presents the techniques for cellular phones to achieve this goal, which consist of a sensor data transceiver, and the software for sensor data utilization. Users are allowed to leverage ubiquitous services provided by cellular phone applications just by downloading and installing the applications to their phones. The presented techniques thus can accelerate the federation of ubiquitous services to end-users. This paper shows the potential applications enabled by our techniques, describes the prototype systems, and explores the challenges that should be met in the future direction of this research.