RFID control system

• US 6,959,229 B2
• Filed: 03/07/2003
• Issued: 10/25/2005
• Est. Priority Date: 03/07/2003
• Status: Expired due to Fees

• Current Assignee: SDI Industries, Inc.
• Original Assignee: SDI Industries, Inc.
• Inventors: Eidemiller, Patrick
• Primary Examiner(s): Tran, Khoi H.
• Application Number:
  US10/383,803
• Publication Number:
  US 20040176872A1
• Time in Patent Office: 963 Days
• Field of Search: 700/226, 700/215, 700/225, 700/227, 700/229, 700/230, 198/349, 198/350
• US Class Current: 700/226
• CPC Class Codes: B07C 3/12 using electric or electronic detecting means B07C3/14 takes precedence
• CPC Class Codes: B65G 2201/0229 Clothes, clothes hangers
• CPC Class Codes: B65G 2203/046 RFID
• CPC Class Codes: B65G 47/50 according to destination signals stored in separate systems

Abstract

A system and method for routing a carrier on a movable conveyance system having a multiplicity of switching stations and at least one carrier. Each carrier has an electronic readable tag coupled thereto, and each tag has a specific identifier that can be read. A reader is configured to read the electronic readable tag and to communicate the tag'"'"'s identifier to a controller. The controller, in turn, is configured to control at least one switching station of the movable conveyance system based at least in part on the identifier.

Claims

1. A system for transporting a product, comprising:

a movable conveyance system having a plurality of pathways for transporting a product along a predetermined pathway;

a carrier removably coupled to one of the plurality of pathways, said carrier adapted to move the product from a first location to a second location, said carrier further having an electronic readable transponder coupled thereto, said transponder containing information for routing the carrier along the plurality of pathways;

a plurality of smart readers joined to the movable conveyance system being in selective electronic communication with the transponder such that the information can be transmitted from the transponder to the reader;

wherein each of the plurality of smart readers includes a custom circuit board with an intelligent circuitry, a memory, and an input/output module to interface with one of a touch screen or a programmable key pad, and the plurality of smart readers are independent of each other such that they are not controlled by a centralized control center;

a switch for selectively switching between pathways such that the carrier can be directed from one pathway to another; and

a controller for selectively activating said switch, said controller in communication with at least one of the plurality of smart readers such that the at least one of the plurality of smart readers may convey the information to the controller, wherein activation of the switch is based at least in part on the information.

2. The system of transporting according to claim 1, wherein each one of the plurality of pathways is a rail.

3. The system of transporting according to claim 1, wherein the conveyance system is an overhead rail system for transporting hanging garments.

4. A decentralized system for routing a carrier through a fixed location, comprising:

a movable conveyance system for routing a carrier along a path, said movable conveyance system having a plurality of tracks;

a carrier for transporting at least one product, said carrier being removably coupled to the movable conveyance system;

an RFID tag coupled to the carrier, said RFID tag containing information for routing the carrier;

a plurality of smart readers for obtaining the information, said reader being located adjacent to the movable conveyance system so as to be able to receive a signal from the tag and in selective communication with the tag wherein each of the plurality of smart readers includes a custom circuit board with an intelligent circuitry, a memory, and an input/output module to interface with one of a touch screen or a programmable key pad, and the plurality of smart readers are independent of each other such that they are not controlled by a centralized control center;

a switch for switching between the plurality of tracks of the movable conveyance system; and

a controller for controlling the operation of the switch, said controller being in communication with at least one of the plurality of smart readers and with the switch and configured to receive the information from the at least one of the plurality of smart readers and to perform an operation on the switch based at least in part on the information.

5. The system of claim 4, wherein the carrier is a trolley system configured to convey hanging garments.

6. The routing system of claim 4, wherein the RFID tag is a passive chip.

7. The routing system of claim 4, wherein the RFID tag operates at a frequency within the 30-300 kHz frequency range.

8. The routing system of claim 4, wherein the RFID tag includes a read/write chip.

9. The routing system of claim 8, further including a programming device configured to program a specific identifier to the read/write chip.

10. The routing system of claim 9, where in the programming device includes at least one of a handheld programming unit, a touch screen computer, a fixed location programmable key pad and a logic controller.

11. The routing system of claim 9, wherein the programming device is configured to be programmed with a layout of a fixed location.

12. The routing system of claim 9, wherein the read/write chip is configured to be programmed with a code denoting a destination location for the carrier.

13. The routing system of claim 9, wherein the read/write chip is configured to be programmed with a code denoting a path through a plurality of switches to arrive at a destination location.