PORTABLE ENCODED INFORMATION READING TERMINAL CONFIGURED TO LOCATE GROUPS OF RFID TAGS

摘要

A portable radio-frequency identifier (RFID) reading terminal can comprise a microprocessor, a memory, an RFID reading device, and a display. The portable EIR terminal can be configured, responsive to successfully reading a plurality of RFID tags attached to a plurality of items sustained by a physical structure, to group the plurality of read RFID tags into zero or more clusters, by correlating quantities of RFID tags read within several time periods to spatial positions of the coverage shapes of the RF signals transmitted by the RFID reading device during the several time periods. The EIR terminal can be further configured to determine the spatial positions of the RFID signal coverage shapes based on the spatial positions and orientations of the portable EIR terminal during the several time periods. The EIR terminal can be further configured to display a quantity of RFID tags within each cluster overlaid over an image.

主权项

1. A device comprising:
an RFID reader that reads RFID tags in an area comprising a plurality of locations and determines a number of the RFID tags that are within each of the plurality of locations; and a display that:
displays an image of the area; andfor each of the plurality of locations, overlays an alphanumeric character over respective portions of the image corresponding to respective locations where the RFID tags are read, each alphanumeric character representing the number of the RFID tags read within each respective location.