Patent ID: 7403108

Claim:
A method for tracking and locating wireless tags in limited and well defined areas that provides for differentiation between the well defined areas comprising: installing location receivers in a proximity of the well defined areas to locate wireless tags; installing short range transmitters installed in a proximity of entrance/exit points, said entrance/exit points connecting between said well defined areas, said short range transmitters transmit area identifying information related to a specific defined area where each short range transmitter is located; receiving the identifying information by the wireless tags in coverage range of any of the short range transmitters; programming each wireless tag in the coverage range of any of the short range transmitters with the identifying information of the short range transmitter of which the wireless tag is in coverage range, wherein each wireless tag is reprogrammed with new identifying information when in coverage range of a different one of the short range transmitters; and transmitting the identifying information which is transmitted in a tag message by each wireless tag, said transmission including the identifying information last received and programmed into each wireless tag.