TRACKING THE MOVEMENT OF RFID READER-EQUIPPED DEVICES WITHIN A DEFINED AREA USING BARRIER SERIES
First Claim
1. A method for identifying a history of movement of equipment in a target space by using barrier series, the method comprising the steps of:
- (a) dividing the target space into a number of areas and assigning respective areas with unique area IDs to be computerized by a computer system;
arranging a number of RFID tags on each boundary line between the areas obtained in step (a) at an identical interval to install a first barrier series with a number corresponding to each boundary line;
arranging a number of RFID tags at an identical interval at a predetermined distance from the first barrier series stalled in step (b) in parallel with the first barrier series to install a second barrier series with an identical number as the first barrier series;
(d) assigning the first and second barrier series installed in steps (b) and (c) with unique series IDs, respectively, to be computerized by the computer system;
(e) recognizing RFID tags belonging to the first and second barrier series at a discrete time interval and transmitting resulting information to the computer system by using a RFID reader mounted on a body of the equipment when the equipment moving in the target space crosses a boundary line between two areas constituting the target space; and
(f) confirming from and to which areas of the target space the equipment has moved based on the information received in step (e) and displaying results of confirmation by the computer system.
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Accused Products
Abstract
Disclosed is a method for checking and managing the history of movement of equipment, which operates in a target space divided into at least two areas, by using a number of RFID tags. The target space (e.g. warehouse) is divided into at least two areas, and RFID tags are installed on the boundary line between the areas at a short interval. When equipment (e.g. forklift) provided with a RFID reader moves across the boundary line and recognizes the RFID tags installed on the boundary line, the computer system recognizes that the equipment has moved from an area to another and displays the result of recognition to the outside so that the operator can finally recognize in which area of the target space the equipment or the object (cargo) carried by it exists in real time.
15 Citations
12 Claims
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1. A method for identifying a history of movement of equipment in a target space by using barrier series, the method comprising the steps of:
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(a) dividing the target space into a number of areas and assigning respective areas with unique area IDs to be computerized by a computer system; arranging a number of RFID tags on each boundary line between the areas obtained in step (a) at an identical interval to install a first barrier series with a number corresponding to each boundary line; arranging a number of RFID tags at an identical interval at a predetermined distance from the first barrier series stalled in step (b) in parallel with the first barrier series to install a second barrier series with an identical number as the first barrier series; (d) assigning the first and second barrier series installed in steps (b) and (c) with unique series IDs, respectively, to be computerized by the computer system; (e) recognizing RFID tags belonging to the first and second barrier series at a discrete time interval and transmitting resulting information to the computer system by using a RFID reader mounted on a body of the equipment when the equipment moving in the target space crosses a boundary line between two areas constituting the target space; and (f) confirming from and to which areas of the target space the equipment has moved based on the information received in step (e) and displaying results of confirmation by the computer system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification