公开(公告)号：US10591578B2

公开(公告)日：2020-03-17

申请号：US15668899

申请日：2017-08-04

Applicant: Zebra Technologies Corporation

Inventor： James J. O'Hagan ,  Rodrigo G. Alonso ,  Michael A. Wohl

IPC: G01S5/02 ,  H04W4/02 ,  H04W4/029

Abstract: An example for processing location information received from a radio frequency (RF) location tag includes determining a first location of a first RF location tag associated with an asset; determining at least one second location of at least one second RF location tag associated with the asset; determining, using a processor, that the first location is not a valid location based at least in part on a comparison of the first location with the at least one second location using a spatial association model associated with the asset; and identifying the first location as erroneous in response to determining that the first location is not a valid location.

公开(公告)号：US11156693B2

公开(公告)日：2021-10-26

申请号：US16777351

申请日：2020-01-30

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： James J. O'Hagan ,  Rodrigo G. Alonso ,  Michael A. Wohl

IPC: G01S5/02 ,  H04W4/02 ,  H04W4/029

Abstract: An example method includes determining that first locations of a first location tag and second locations of a second location tag indicate that the first location tag is moving at a different rate than the second location tag; and, in response to determining that the first and second locations indicate that the first location tag is moving at a different rate than the second location tag at a first time, determining a distance magnitude between the first location tag and the second location tag at the first time; comparing the distance magnitude to a reference distance; and determining, based on the comparing of the distance magnitude to the reference distance, whether the first and second locations indicate that a type of movement of an asset is rotational.

公开(公告)号：US20200166599A1

公开(公告)日：2020-05-28

申请号：US16777351

申请日：2020-01-30

Applicant: ZEBRA TECHNOLOGIES CORPORATION

Inventor： James J. O'Hagan ,  Rodrigo G. Alonso ,  Michael A. Wohl

IPC: G01S5/02 ,  H04W4/02 ,  H04W4/029

Abstract: An example method includes determining that first locations of a first location tag and second locations of a second location tag indicate that the first location tag is moving at a different rate than the second location tag; and, in response to determining that the first and second locations indicate that the first location tag is moving at a different rate than the second location tag at a first time, determining a distance magnitude between the first location tag and the second location tag at the first time; comparing the distance magnitude to a reference distance; and determining, based on the comparing of the distance magnitude to the reference distance, whether the first and second locations indicate that a type of movement of an asset is rotational.