Ubiquitous applications using RFID tags

The "person-to-person" communications market is becoming saturated, prompting an interest in the "object-to-object" communications market. "Object-to-object" communications technology uses a large number of mobile devicesthat transmit information at low speed. It is especially useful in management of distribution systems and warehouse inventories. The attractiveness of the technology from the service provider's standpoint is that we can set the communication unit price per bit high compared with broadband services. In this article, we will introduce a position information service that uses small wireless tags to keep track of objects.