USING OBJECT TO ALIGN AND CALIBRATE INERTIAL NAVIGATION SYSTEM
    3.
    发明申请
    USING OBJECT TO ALIGN AND CALIBRATE INERTIAL NAVIGATION SYSTEM 有权
    使用对象对齐和校准惯性导航系统

    公开(公告)号:US20110178708A1

    公开(公告)日:2011-07-21

    申请号:US12689085

    申请日:2010-01-18

    IPC分类号: G01C21/16 G06K7/00

    摘要: The initialization of an inertial navigation system is performed using information obtained from an image of an object. Positional and orientational information about the object in a global reference frame and positional and orientational information about the camera relative to the object are obtained from the image. Positional and orientational information for the camera in the global reference frame is determined along with a transformation matrix between inertial sensor reference frame and a navigation coordinate frame. The inertial navigation system is initialized using the positional and orientational information for the camera, the transformation matrix and the velocity of the camera when the object was imaged, i.e., zero. Using the initialized data with measurements from the inertial sensors the position of the mobile platform may be updated during navigation and provided, e.g., on a digital map. Inertial navigation errors may be corrected using information obtained from images of different objects.

    摘要翻译: 使用从对象的图像获得的信息来执行惯性导航系统的初始化。 从图像中获得关于全局参考帧中的对象的位置和取向信息以及关于相机相对于对象的位置和取向信息。 全局参考帧中相机的位置和方位信息与惯性传感器参考系和导航坐标系之间的变换矩阵一起确定。 惯性导航系统使用摄像机的位置和方位信息,变换矩阵和摄像机成像时的摄像机速度(即零)进行初始化。 使用来自惯性传感器的测量的初始化数据,可以在导航期间更新移动平台的位置,并且例如在数字地图上提供。 可以使用从不同对象的图像获得的信息来校正惯性导航错误。

    Advanced power management for satellite positioning system
    4.
    发明授权
    Advanced power management for satellite positioning system 失效
    卫星定位系统先进电源管理

    公开(公告)号:US07573422B2

    公开(公告)日:2009-08-11

    申请号:US10489525

    申请日:2002-09-14

    IPC分类号: G01S5/14 H04B1/16 G06F1/32

    CPC分类号: G01S19/34

    摘要: A power management system for managing power in a wireless device having a SPS receiver, communication device and a power source, the power management is described. The power management system may include a real-time clock, an input/output device, a radio frequency front-end and a SPS engine in signal communication with the real-time clock, input/output device and radio frequency front-end, the SPS engine capable of powering down itself, the input/output device and radio frequency front-end in response to determining a mode of operation.

    摘要翻译: 一种用于在具有SPS接收机,通信设备和电源的无线设备中管理电力的电源管理系统,描述了电源管理。 电源管理系统可以包括与实时时钟,输入/输出设备和射频前端进行信号通信的实时时钟,输入/输出设备,射频前端和SPS引擎, 响应于确定操作模式,能够自己断电的SPS引擎,输入/输出设备和射频前端。

    Satellite Clock Prediction
    6.
    发明申请
    Satellite Clock Prediction 有权
    卫星时钟预测

    公开(公告)号:US20080238765A1

    公开(公告)日:2008-10-02

    申请号:US11694430

    申请日:2007-03-30

    IPC分类号: G01S1/00 H04B7/185

    摘要: Devices and methods are described for determining position information without broadcast ephemeris data for a spanned time period using predictions of future satellite states. These predictions include predictions of satellite clock bias. During the spanned time period, broadcast ephemeris is received such that a broadcast-ephemeris-derived satellite clock bias may be determined. The predictions of satellite clock bias subsequent to the receipt of the broadcast ephemeris may then be corrected based upon the broadcast-ephemeris-derived satellite clock bias.

    摘要翻译: 描述了用于使用对未来卫星状态的预测来确定跨越时间段的广播星历数据的位置信息的装置和方法。 这些预测包括对卫星时钟偏差的预测。 在跨越的时间段期间,接收广播星历,使得可以确定广播 - 星历衍生的卫星时钟偏差。 然后可以基于广播 - 星历衍生的卫星时钟偏差来校正在接收广播星历之后的卫星时钟偏差的预测。

    Using object to align and calibrate inertial navigation system
    7.
    发明授权
    Using object to align and calibrate inertial navigation system 有权
    使用对象来对齐和校准惯性导航系统

    公开(公告)号:US08855929B2

    公开(公告)日:2014-10-07

    申请号:US12689085

    申请日:2010-01-18

    摘要: The initialization of an inertial navigation system is performed using information obtained from an image of an object. Positional and orientational information about the object in a global reference frame and positional and orientational information about the camera relative to the object are obtained from the image. Positional and orientational information for the camera in the global reference frame is determined along with a transformation matrix between inertial sensor reference frame and a navigation coordinate frame. The inertial navigation system is initialized using the positional and orientational information for the camera, the transformation matrix and the velocity of the camera when the object was imaged, i.e., zero. Using the initialized data with measurements from the inertial sensors the position of the mobile platform may be updated during navigation and provided, e.g., on a digital map. Inertial navigation errors may be corrected using information obtained from images of different objects.

    摘要翻译: 使用从对象的图像获得的信息来执行惯性导航系统的初始化。 从图像中获得关于全局参考帧中的对象的位置和取向信息以及关于相机相对于对象的位置和取向信息。 全局参考帧中相机的位置和方位信息与惯性传感器参考系和导航坐标系之间的变换矩阵一起确定。 惯性导航系统使用摄像机的位置和方位信息,变换矩阵和摄像机成像时的摄像机速度(即零)进行初始化。 使用来自惯性传感器的测量的初始化数据,可以在导航期间更新移动平台的位置,并且例如在数字地图上提供。 可以使用从不同对象的图像获得的信息来校正惯性导航错误。

    Mobile Access Point Detection
    9.
    发明申请
    Mobile Access Point Detection 有权
    移动接入点检测

    公开(公告)号:US20140036701A1

    公开(公告)日:2014-02-06

    申请号:US13612582

    申请日:2012-09-12

    IPC分类号: H04W24/00

    摘要: Methods and devices for detecting mobile access points are disclosed. In one embodiment, a method of detecting mobile access points comprises collecting crowdsourcing data associated with one or more access point devices, quantizing the crowdsourcing data to generate a quantized crowdsourcing data, for each access point device, determining an interfracile range of the access point device using the quantized crowdsourcing data, where the interfracile range is a measure of statistical dispersion of the quantized crowdsourcing data with respect to the access point device, identifying the access point device as a mobile access point device in response to the interfracile range exceeds a first predetermined range. The method of collecting crowdsourcing data comprises collecting the crowdsourcing data within a predetermined sliding time window.

    摘要翻译: 公开了用于检测移动接入点的方法和设备。 在一个实施例中,检测移动接入点的方法包括:收集与一个或多个接入点设备相关联的众包数据,对每个接入点设备量化众包数据以生成量化的众包数据,确定接入点设备的间接范围 使用量化的众包数据,其中interfracile范围是量化的众包数据相对于接入点设备的统计色散的度量,将接入点设备识别为响应于interfracile范围的移动接入点设备超过第一预定 范围。 收集众包数据的方法包括在预定的滑动时间窗口内收集众包数据。

    Methods and apparatus for efficient transport and management of a positioning & timing almanac
    10.
    发明申请
    Methods and apparatus for efficient transport and management of a positioning & timing almanac 有权
    有效运输和管理定位和定时年历的方法和设备

    公开(公告)号:US20130267218A1

    公开(公告)日:2013-10-10

    申请号:US13439686

    申请日:2012-04-04

    IPC分类号: H04W64/00

    摘要: A method and apparatus for reporting almanac versions and almanac identification by a mobile station to a server is provided. The server compares the almanac version and almanac identification held by the mobile station with almanac versions and almanac identifications held by the server. The server then sends instructions to the mobile station to match the server versions of the almanac versions and almanac identifications for the almanac versions and almanac identifications that the mobile station should hold.

    摘要翻译: 提供了一种用于向移动台向服务器报告历书版本和历书识别的方法和装置。 服务器将历史版本和移动台持有的年历标识与服务器持有的历书版本和历书标识进行比较。 然后,服务器向移动台发送指令以匹配历史版本的历史版本和历书的年历标识用于移动台应该保存的历书版本和历书标识。