Bringing IP to Low-power Smart Objects: The Smart Parking Case in the CALIPSO Project

The chapter describes the Calipso communication architecture for IP connectivity in wireless sensor networks (WSNs) and the Smart Parking application scenario developed within the Project. The use case is a real life demonstrator for traffic flow and parking monitoring deployed in the city of Barcelona, Spain. It is based on a communication infrastructure with sensors for parking and traffic detection embedded in the ground. The sensor nodes communicate parking space availability/traffic flow to neighboring sensors until they reach a gateway. Multi-hop routing is used when there is no direct communication with the gateway. Acentralized control system stores and processes all data gathered from sensors. The resulting information and implemented services are offered to citizens by means of mobile applications and city panels. In the chapter, we analyze the requirements of the use case, present the communication architecture of Calipso, and show how the Smart Parking application takes advantage of different modules within the architecture.