US 2022/0188529 A1Published application

RFID Multi-Read Portal

AssigneeFujitsu Frontech North America Inc.

InventorsHerbert MARKMAN, Aaron TETER, Daniel G. DALTON

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Abstract

A system and method for multi-reading RFID codes is disclosed. The system may comprise a portal, a RFID reader, an entrance sensor, an exit sensor and a controller. The controller is configured to receive the RFID code data and the read timestamp for each article, receive the start trigger timestamp and the stop trigger timestamp, determine a read area time range based on the start trigger timestamp and the stop trigger timestamp, determine an active read area timeframe based on the read area time range as adjusted by a pre-read offset and a post-read offset, associate RFID code data with the first group if the read timestamp associated with the RFID code data occurred during the active read area timeframe, and process the RFID code data of the first group and transmit a result of the processing of the first group to an output interface.

Claims20

Dependent claims

A system for multi-reading Radio Frequency Identification (RFID) tags carried by articles, the system comprising:

a portal having a reading zone disposed between an inlet and an outlet of the reading zone, the portal configured to receive a plurality of articles, each article including an RFID tag;
a RFID reader configured to read the RFID tag of each article and transmit to a controller:
(a) RFID code data that is based on the RFID tag, and (b) a read timestamp representative of the time that the RFID tag was read;
an entrance sensor configured to detect a start trigger and transmit a start trigger timestamp to the controller, the start trigger timestamp indicative of the entrance into the reading zone of a first group of the plurality of articles;
and
an exit sensor configured to detect a stop trigger and transmit a stop trigger timestamp to the controller, the stop trigger timestamp indicative of the exit of the first group from the reading zone;
and
the controller in operable communication with the RFID reader, the entrance sensor, the exit sensor, and an output interface, the controller configured to:
receive the RFID code data and the read timestamp for each article;
receive the start trigger timestamp and the stop trigger timestamp;
determine a read area time range based on the start trigger timestamp and the stop trigger timestamp;
determine an active read area timeframe based on the read area time range as adjusted by at least one of a pre-read offset of time and a post-read offset of time;
associate RFID code data with the first group when the read timestamp associated with the RFID code data occurred during the active read area timeframe;
and
process the RFID code data of the first group and transmit a result of the processing of the first group to an output interface.

12 more elements

A method for multi-reading Radio Frequency Identification (RFID) tags carried by articles, the method comprising:

receiving by a portal a plurality of articles, each article including an RFID tag;
receiving, by a controller, RFID code data and an associated read timestamp for each article;
receiving a start trigger timestamp and a stop trigger timestamp;
determining a read area time range based on the start trigger timestamp and the stop trigger timestamp;
determining an active read area timeframe based on the read area time range as adjusted by at least one of a pre-read offset of time and a post-read offset of time;
associating RFID code data with a first group of the plurality of articles when the read timestamp associated with the RFID code data occurred during the active read area timeframe;
processing the RFID code data with the first group;
and
transmitting a result of the processing of the first group to an output interface.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/121,516Filed 14 Dec 2020
Published: 16 Jun 2022
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

G06K 7/10297
Sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves: arrangements for handling protocols designed for…
G07G 1/009
With a code reader for reading of an identifying code of the article to be registered, e.g. barcode reader or radio-frequency identity [RFID]…
G06F 16/1748
Redundancy elimination performed by the file system: de-duplication implemented within the file system, e.g. based on file segments
G06K 7/10108
Resolving collision on the communication channels between simultaneously or concurrently interrogated record carriers.: interrogating only those…