公开(公告)号：US09202088B2

公开(公告)日：2015-12-01

申请号：US13687823

申请日：2012-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ai Chen ,  Lujia Pan

IPC: G06K7/00 ,  G01S5/02 ,  H04W64/00

CPC classification number: G06K7/00 ,  G01S5/0284 ,  H04W64/00

Abstract: A method and an apparatus for selecting a reference tag used for positioning are provided. The method includes: obtaining first signal strength emitted by a reference tag and second signal strength emitted by a tag to be positioned, where the first signal strength and the second signal strength are detected by each radio frequency reader; comparing the first signal strength with the second signal strength to determine a boundary of the radio frequency readers, and dividing a network into a first area and a second area with the boundary; determining an estimated direction of the tag to be positioned relative to the reference tag according to a relative position of the reference tag and the boundary; and according to the estimated direction and according to the specified number of reference tags, selecting a valid reference tag group as the reference tag used for positioning.

Abstract translation: 提供了一种用于选择用于定位的参考标签的方法和装置。 该方法包括：获取由参考标签发出的第一信号强度和由待定位的标签发射的第二信号强度，其中由每个射频读取器检测第一信号强度和第二信号强度; 将第一信号强度与第二信号强度进行比较，以确定射频读取器的边界，并将网络划分成具有边界的第一区域和第二区域; 根据参考标签和边界的相对位置确定相对于参考标签定位的标签的估计方向; 并根据估计的方向和根据指定数量的参考标签，选择有效的参考标签组作为用于定位的参考标签。

公开(公告)号：US20130088334A1

公开(公告)日：2013-04-11

申请号：US13687823

申请日：2012-11-28

Applicant: Huawei Technologies Co., Ltd.

Inventor： Ai Chen ,  Lujia Pan

IPC: G06K7/00

CPC classification number: G06K7/00 ,  G01S5/0284 ,  H04W64/00

Abstract: A method and an apparatus for selecting a reference tag used for positioning are provided. The method includes: obtaining first signal strength emitted by a reference tag and second signal strength emitted by a tag to be positioned, where the first signal strength and the second signal strength are detected by each radio frequency reader; comparing the first signal strength with the second signal strength to determine a boundary of the radio frequency readers, and dividing a network into a first area and a second area with the boundary; determining an estimated direction of the tag to be positioned relative to the reference tag according to a relative position of the reference tag and the boundary; and according to the estimated direction and according to the specified number of reference tags, selecting a valid reference tag group as the reference tag used for positioning.

Abstract translation: 提供了一种用于选择用于定位的参考标签的方法和装置。 该方法包括：获取由参考标签发出的第一信号强度和由待定位的标签发射的第二信号强度，其中由每个射频读取器检测第一信号强度和第二信号强度; 将第一信号强度与第二信号强度进行比较，以确定射频读取器的边界，并将网络划分成具有边界的第一区域和第二区域; 根据参考标签和边界的相对位置确定相对于参考标签定位的标签的估计方向; 并根据估计的方向和根据指定数量的参考标签，选择有效的参考标签组作为用于定位的参考标签。