Pick verification using moving RFID tags
First Claim
1. A system, comprising:
- a robotic picker configured to move an item storage structure containing a plurality of items, wherein individual ones of the plurality of items have a radio frequency identification (RFID) tag affixed; and
an RFID tag identification device configured to;
energize a plurality of RFID tags affixed to respective ones of the plurality of items;
receive a respective plurality of responses from respective ones of the plurality of RFID tags, each of the respective plurality of responses from the respective ones of the plurality of RFID tags comprising velocity data for the respective ones of the plurality of RFID tags;
determine that a particular RFID tag within the plurality of RFID tags is in motion based at least in part on the velocity data in a respective response received from the particular RFID tag; and
determine an identifier for the particular RFID tag.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed are various embodiments for pick verification using moving radio frequency identification (RFID) tags. A robotic picker moves an item storage structure within range of a radio frequency identification (RFID) tag reader, wherein the item storage structure comprises multiple items and the items each have an RFID tag affixed. The RFID tag reader emits an electric field. The robotic picker moves the item storage structure while the RFID tag reader emits the electric field. An RFID tag identification device receives responses from energized RFID tags affixed to the items. The RFID tag identification device determines that an energized RFID tag is in motion and selects an identifier broadcast by the energized RFID tag that is in motion.
-
Citations
20 Claims
-
1. A system, comprising:
-
a robotic picker configured to move an item storage structure containing a plurality of items, wherein individual ones of the plurality of items have a radio frequency identification (RFID) tag affixed; and an RFID tag identification device configured to; energize a plurality of RFID tags affixed to respective ones of the plurality of items; receive a respective plurality of responses from respective ones of the plurality of RFID tags, each of the respective plurality of responses from the respective ones of the plurality of RFID tags comprising velocity data for the respective ones of the plurality of RFID tags; determine that a particular RFID tag within the plurality of RFID tags is in motion based at least in part on the velocity data in a respective response received from the particular RFID tag; and determine an identifier for the particular RFID tag. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A system, comprising:
-
a robotic picker configured to move an item storage structure containing a plurality of items, wherein individual ones of the plurality of items have a radio frequency identification (RFID) tag affixed; and an RFID tag identification device configured to; energize a plurality of RFID tags comprising the plurality of RFID tags affixed to respective ones of the plurality of items; receive a respective plurality of responses from respective ones of the plurality of RFID tags, each of the respective plurality of responses including acceleration data for the respective ones of the plurality of RFID tags, wherein the acceleration data indicates whether the respective ones of the plurality of RFID tags are in motion; determine that a particular RFID tag within the plurality of RFID tags is in motion based at least in part on the acceleration data included in a respective response received from the particular RFID tag; determine a first identifier for the particular RFID tag; and send the first identifier to a computing device; and the computing device being in network communication with the RFID tag identification device, wherein the computing device comprises a processor, a memory, and machine readable instructions stored in the memory that, when executed by the processor, cause the computing device to determine that the first identifier for the particular RFID tag matches a second identifier for an item on a pick list. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A method, comprising:
-
moving, with a robotic picker, an item storage structure within range of a radio frequency identification (RFID) tag reader, wherein the item storage structure comprises a plurality of items and individual ones of the plurality of items have an RFID tag affixed; emitting, from a RFID tag reader, an electric field; moving, with the robotic picker, the item storage structure while the RFID tag reader emits the electric field; receiving, with an RFID tag identification device, responses from a plurality of energized RFID tags affixed to the plurality of items; detecting, with the RFID tag identification device, a change in an electric field strength of each one of the plurality of energized RFID tags affixed to the plurality of items; determining, with the RFID tag identification device, that a particular energized RFID tag from the plurality of energized RFID tags is in motion based at least in part on the change in the electric field strength of the particular energized RFID tag; and selecting, with the RFID tag identification device, an identifier broadcast by the particular energized RFID tag that is in motion. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification