公开(公告)号：US09288633B2

公开(公告)日：2016-03-15

申请号：US14126096

申请日：2013-06-28

Applicant: INTEL CORPORATION

Inventor： Xue Yang ,  Lei Yang ,  Aveek Purohit

IPC: H04W4/04 ,  H04W64/00 ,  H04W4/02

CPC classification number: H04W4/04 ,  G01S5/02 ,  G01S5/0252 ,  H04W4/02 ,  H04W4/029 ,  H04W64/00 ,  H04W64/006

Abstract: A method of detecting a revisit position includes receiving at a computing system a plurality of position data points, each of the plurality of position data points including a signal scan measurement. The method farther includes calculating a first signal distance between a first signal scan measurement corresponding to a first position data point of the plurality of position data points and a second signal scan measurement corresponding to a second position data point of the plurality of position data points. The method further includes determining that the first signal distance is less than a first threshold, that the first signal distance is a local minimum for the first position data point, and the first signal distance is a local minimum for the second position data point. The method further includes, based on the determining, identifying the first and second position data points as revisit points.

Abstract translation: 检测重访位置的方法包括在计算系统处接收多个位置数据点，所述多个位置数据点中的每一个包括信号扫描测量。 该方法还包括计算与多个位置数据点中的第一位置数据点相对应的第一信号扫描测量值和对应于多个位置数据点的第二位置数据点的第二信号扫描测量值之间的第一信号距离。 该方法还包括确定第一信号距离小于第一阈值，第一信号距离是第一位置数据点的局部最小值，第一信号距离是第二位置数据点的局部最小值。 该方法还包括：基于确定，将第一和第二位置数据点识别为重访点。

公开(公告)号：US09400181B2

公开(公告)日：2016-07-26

申请号：US14128164

申请日：2013-06-27

Applicant: INTEL CORPORATION

Inventor： Xue Yang ,  Yang Lei ,  Aveek Purohit

IPC: G01V3/38 ,  G01C21/04 ,  G01S5/02 ,  G01C21/20 ,  G06F11/30

CPC classification number: G01C21/04 ,  G01C21/16 ,  G01C21/20 ,  G01C21/206 ,  G01S5/0252 ,  G01S5/0263 ,  G01S5/0294

Abstract: A method of determining landmarks includes receiving, at a computing system, a plurality of potential landmark measurements and corresponding signal measurements. The method further includes determining, at the computing system, a plurality of landmark candidates from the plurality of potential landmark candidates and corresponding signal measurements. The method further includes determining a normalized signal distance between a first signal measurement corresponding to a first landmark candidate of the plurality of landmark candidates and a second signal measurement corresponding to a second landmark candidate of the plurality of landmark candidates. The method further includes determining, at the computing system, that the first landmark corresponds to the second landmark based on the normalized signal distance.

Abstract translation: 确定地标的方法包括在计算系统处接收多个潜在地标测量值和对应的信号测量值。 该方法还包括在计算系统处确定来自多个潜在地标候选的多个地标候选和对应的信号测量。 该方法还包括确定对应于多个地标候选的第一地标候选的第一信号测量与对应于多个地标候选的第二地标候选的第二信号测量之间的归一化信号距离。 该方法还包括在计算系统处，基于归一化的信号距离来确定第一标记对应于第二标记。