When fire department receive an emergency call, it is important to determine its place of origin in order to respond without fault quickly. When such a call is made from a cellular phone, its place of origin can be determined by using GPS or a cell-based positioning technique. However, this technique is sometimes inaccurate for example lack of information on the exact floor of a building and existence of blind spots. We have been developing a system that would determine location using active radio frequency identification (RFID) reader and GPS equipped cellular phones. This paper introduces the outline of the prototype system.
