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    DEAD RECKONING SYSTEM BASED ON LOCALLY MEASURED MOVEMENT
    1.
    发明公开
    DEAD RECKONING SYSTEM BASED ON LOCALLY MEASURED MOVEMENT 审中-公开
    澳大利亚创始人基金会

    公开(公告)号：EP3137923A1

    公开(公告)日：2017-03-08

    申请号：EP15721983.3

    申请日：2015-04-30

    申请人： Trimble Navigation Limited

    发明人： RUDOW, Richard ,  WOLD, Robert ,  KASIRAJAN, Venkateswaran ,  TALBOT, Nicholas C. ,  LOOMIS, Peter ,  WEISENBURGER, Shawn ,  JANKY, James M.

    IPC分类号： G01S19/48 ,  G01S19/49

    CPC分类号： G01S19/48 ,  G01S19/49

    摘要： A Global Navigation Satellite System (GNSS) chipset embedded within the cellular device is accessed. The GNSS chipset calculates raw pseudoranges. The raw pseudoranges are extracted from the GNSS chipset for processing elsewhere in the cellular device outside of the GNSS chipset. A position fix is calculated based on the raw pseudoranges. At a first point in time, a first image, and at a second point in time, a second image are obtained with an image capturing device that is in a known physical relationship with the cellular device. An estimate of a distance that the cellular device moved from the first point in time to the second point in time is calculated by processing image data collected from the first point in time to the second point in time. The position fix is processed based on the estimate of the distance.

    摘要翻译： 访问嵌入在蜂窝设备内的全球导航卫星系统（GNSS）芯片组。 GNSS芯片组计算原始伪距。 从GNSS芯片组提取原始伪距，用于在GNSS芯片组外的蜂窝设备的其他地方进行处理。 基于原始伪距计算定位。 在第一时间点，使用与蜂窝设备处于已知物理关系的图像捕获设备获得第一图像，并且在第二时间点获得第二图像。 通过处理从第一时间点到第二时间点收集的图像数据来计算蜂窝设备从第一时间点移动到第二时间点的距离的估计。 基于距离的估计来处理定位。