Patent ID: 7961106

Claim:
A method for constructing a location management system using an RFID series having the form of string after wrapping a number of RFID tags with a covering, wherein the RFID tags are arranged at regularly spaced intervals, and a division or a color indicating the intervals between the RFID tags is coded on the covering, under the conditions that the RFID series is installed in a straight line, and that a direction of increasing the length indication of the RFID series is a forward direction, the method comprising: (a) determining a portion requiring installation of RFID tags in an objective space; (b) determining a distance between RFID tags and selecting an RFID series complying with the distance; (c) determining a provisional starting point in a corner of the objective space and installing a first RFID series on the provisional starting point as a starting point; (d) reading and recording ID of an RFID tag corresponding to the starting point of the first RFID series and ID of an RFID tag corresponding to a final point of the first RFID series by using an RFID reader; (e) installing a second RFID series to cross the first RFID series; (f) reading and recording ID of the nearest RFID tag in a reverse direction from a crossing point of the first and second RFID series on any one phase of the first and second RFID series and a distance from the nearest RFID tag to the crossing point, and measuring and recording an angle between forward directions of the first and second RFID series; (g) reading and recording ID of an RFID tag corresponding to a starting point of the second RFID series and ID of an RFID tag corresponding to a final point of the second RFID series by using the RFID reader; and (h) repeating steps (a)-(g) until all of the locations required on the objective space are found.