公开(公告)号：US20130331121A1

公开(公告)日：2013-12-12

申请号：US13916390

申请日：2013-06-12

Applicant: TRX Systems, Inc.

Inventor： Amrit Bandyopadhyay ,  Daniel Hakim ,  Carole Teolis

IPC: H04W64/00

CPC classification number: G01C21/12 ,  G01C21/165 ,  G01C21/206 ,  G01S5/0205 ,  G01S5/0263 ,  G01S5/0268 ,  H04W64/00

Abstract: Disclosed herein is the use of Wi-Fi based location estimates of a mobile device to provide global offset corrections (including automated initialization) and enhanced navigation accuracy through delivery of heading corrections. In an embodiment, dead reckoning tracking data may be received for a tracked subject. The tracking data includes a plurality of tracking points forming a tracking path of the tracked subject. A Wi-Fi position system location estimate is also obtained. The Wi-Fi position system location estimate is one of a plurality of Wi-Fi position system location estimates correlated to the dead reckoning tracking data. And a tracking related parameter is determined based on the correlation of the dead reckoning tracking data to the Wi-Fi position system location estimate.

Abstract translation: 这里公开的是使用基于Wi-Fi的移动设备的位置估计来提供全局偏移校正（包括自动初始化）和通过提供标题校正来增强导航精度。 在一个实施例中，可以为跟踪的对象接收航位推算跟踪数据。 跟踪数据包括形成跟踪对象的跟踪路径的多个跟踪点。 还获得Wi-Fi位置系统位置估计。 Wi-Fi位置系统位置估计是与航位推算跟踪数据相关联的多个Wi-Fi位置系统位置估计之一。 并且基于航位推算跟踪数据与Wi-Fi位置系统位置估计的相关性来确定跟踪相关参数。