Systems and methods for order-picking
First Claim
1. An order-picking system, comprising:
- a picking cart having a radio frequency (RF) antenna arranged above an object-stacking surface of the picking cart; and
a radio frequency identification (RFID) tag reader coupled to the RF antenna, the RFID tag reader configured to identify a first RFID tag attached to a first tagged object placed on the picking cart and further configured to eliminate identification of a second RFID tag attached to a second tagged object located outside a perimeter of the object-stacking surface of the picking cart.
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Accused Products
Abstract
In one exemplary embodiment in accordance with the invention, an order-picking system includes a picking cart having a radio frequency (RF) antenna arranged above an object-stacking surface of the picking cart. The order-picking system further includes a radio frequency identification (RFID) tag reader coupled to the RF antenna. The RFID tag reader is configured to identify a first RFID tag attached to a first tagged object placed on the picking cart and further configured to eliminate identification of a second RFID tag attached to a second tagged object located outside a perimeter of the object-stacking surface of the picking cart.
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Citations
39 Claims
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1. An order-picking system, comprising:
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a picking cart having a radio frequency (RF) antenna arranged above an object-stacking surface of the picking cart; and
a radio frequency identification (RFID) tag reader coupled to the RF antenna, the RFID tag reader configured to identify a first RFID tag attached to a first tagged object placed on the picking cart and further configured to eliminate identification of a second RFID tag attached to a second tagged object located outside a perimeter of the object-stacking surface of the picking cart. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for order-picking, the method comprising:
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reading a first radio frequency identification (RFID) tag attached to a first tagged object placed on a picking cart; and
eliminating reading of a second RFID tag attached to a second tagged object located outside a perimeter of an object-stacking surface of the picking cart. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A method for order-picking using a radio frequency identification (RFID) tag reader mounted on a picking cart, the method comprising:
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setting a validation period for validating placement of an object upon the picking cart;
directing a first RFID interrogation signal during the validation period towards an object-stacking surface of the picking cart;
receiving in response thereof, a first RFID code from a first RFID tag;
directing a second RFID interrogation signal during the validation period towards the object-stacking surface of the picking cart;
receiving in response thereof, a second RFID code from a second RFID tag;
identifying the first RFID tag to be same as the second RFID tag upon detecting the first RFID code to be same as the second RFID code;
identifying the first RFID tag to be different than the second RFID tag upon detecting the first RFID code to be different than the second RFID code;
upon identifying the first RFID tag to be same as the second RFID tag, storing one of the first and second RFID codes in an RFID database configured to store at least one RFID code of a picked object placed on the picking cart; and
upon identifying the first RFID tag to be different than the second RFID tag, preventing storage of the first RFID code in the RFID database and further preventing storage of the second RFID code in the RFID database. - View Dependent Claims (24)
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25. A method for order-picking using a radio frequency identification (RFID) tag reader mounted on a picking cart, the method comprising:
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setting a validation period for validating placement of a first object upon the picking cart;
performing during the validation period, a plurality of RFID interrogations;
setting a confidence factor for a plurality of RFID responses generated thereto;
using the confidence factor and the plurality of RFID responses to validate RFID tag data obtained from a first RFID tag attached to the first object;
storing in a database thereon, RFID tag data obtained from the first RFID tag;
performing after the validation period, at least one RFID interrogation; and
retaining in the database, RFID tag data of the first object after the at least one RFID interrogation. - View Dependent Claims (26, 27, 28, 29, 30)
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31. An order-picking program stored on a computer-readable medium, the program comprising:
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logic configured to control a phased array antenna for directing RF radiation towards an object-stacking surface of a picking cart and suppressing RF radiation upon a location outside a perimeter of the object-stacking surface of the picking cart; and
logic configured to obtain RFID tag information from a first RFID tag attached to a first tagged object that is an item located in the picking cart. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A method for order-picking using a radio frequency identification (RFID) tag reader mounted on a picking cart, the method comprising:
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reading a first radio frequency identification (RFID) tag attached to a first tagged object; and
measuring a change in weight imposed upon an object-stacking surface of the picking cart. - View Dependent Claims (38, 39)
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Specification