Ubiquitous Sensor Networks (USN) is the concept of having huge numbers of sensors networked by wireless for reasons as varied as monitoring and controlling the microclimate in industrial greenhouses and hospitals to monitoring weather and pollution in rivers and the sea. The millions to billions of tags involved will often have RFID and power sources and be made by printing to achieve the necessary very low cost. The Korean government is taking a lead in this as well as the US Army, Intel and the Holst Centre in the Netherlands. To assist the process, the Koreans are organising an exhibition with associated meetings.
For more read Active RFID and Sensor Networks 2007-2017 and Real Time Locating Systems 2007-2017 and attend the IDTechEx conference and exhibition Active RFID and RTLS, Dallas 5-6 December.