Automatic activation of speed measurement in mobile device based on available motion indicia
    1.
    发明授权
    Automatic activation of speed measurement in mobile device based on available motion indicia 有权
    基于可用运动标记自动激活移动设备中的速度测量

    公开(公告)号:US08355751B2

    公开(公告)日:2013-01-15

    申请号:US12388006

    申请日:2009-02-18

    IPC分类号: H04M1/00

    摘要: A system and method for speed measurement of a mobile device, using an speed sensor such as a satellite navigation system or an accelerometer, does not need such speed sensor to be continually activated. The system and method make use of a monitor for monitoring at least one motion indicium for indicating that the speed of the mobile device is above an initial threshold, including but not limited to: monitoring the Doppler shift measurements of a timing signal; monitoring the timing advance of a cellular radio signal; monitoring the number of base stations visible to the mobile device; monitoring the frequency of base station handover, however determined; monitoring the level crossings and/or the autocorrelation of an RSSI signal; and/or triangulation of the position of the mobile device. When the monitor determines that the mobile device may be travelling in excess of a threshold speed, a speed sensor is activated to confirm the indication. If the speed sensor determines that the mobile device is travelling at a speed below a second threshold, the speed sensor is deactivated.

    摘要翻译: 用于使用诸如卫星导航系统或加速度计的速度传感器的移动设备的速度测量的系统和方法不需要这种速度传感器被连续地激活。 该系统和方法利用监视器来监视至少一个运动标记,用于指示移动设备的速度高于初始阈值,包括但不限于监视定时信号的多普勒频移测量; 监视蜂窝无线电信号的定时提前; 监视移动设备可见的基站的数量; 监测基站切换的频率,然而确定; 监测RSSI信号的电平交叉和/或自相关; 和/或移动设备的位置的三角测量。 当监视器确定移动设备可能超过阈值速度行进时,速度传感器被激活以确认指示。 如果速度传感器确定移动设备以低于第二阈值的速度行进,则速度传感器被停用。

    AUTOMATIC ACTIVATION OF SPEED MEASUREMENT IN MOBILE DEVICE BASED ON AVAILABLE MOTION
    2.
    发明申请
    AUTOMATIC ACTIVATION OF SPEED MEASUREMENT IN MOBILE DEVICE BASED ON AVAILABLE MOTION 有权
    基于可用运动的移动设备中速度测量的自动启动

    公开(公告)号:US20100210301A1

    公开(公告)日:2010-08-19

    申请号:US12388006

    申请日:2009-02-18

    IPC分类号: H04M1/00 G08B21/00

    摘要: A system and method for speed measurement of a mobile device, using an speed sensor such as a satellite navigation system or an accelerometer, does not need such speed sensor to be continually activated. The system and method make use of a monitor for monitoring at least one motion indicium for indicating that the speed of the mobile device is above an initial threshold, including but not limited to: monitoring the Doppler shift measurements of a timing signal; monitoring the timing advance of a cellular radio signal; monitoring the number of base stations visible to the mobile device; monitoring the frequency of base station handover, however determined; monitoring the level crossings and/or the autocorrelation of an RSSI signal; and/or triangulation of the position of the mobile device. When the monitor determines that the mobile device may be travelling in excess of a threshold speed, a speed sensor is activated to confirm the indication. If the speed sensor determines that the mobile device is travelling at a speed below a second threshold, the speed sensor is deactivated.

    摘要翻译: 用于使用诸如卫星导航系统或加速度计的速度传感器的移动设备的速度测量的系统和方法不需要这种速度传感器被连续地激活。 该系统和方法利用监视器来监视至少一个运动标记,用于指示移动设备的速度高于初始阈值,包括但不限于监视定时信号的多普勒频移测量; 监视蜂窝无线电信号的定时提前; 监视移动设备可见的基站的数量; 监测基站切换的频率,然而确定; 监测RSSI信号的电平交叉和/或自相关; 和/或移动设备的位置的三角测量。 当监视器确定移动设备可能超过阈值速度行进时,速度传感器被激活以确认指示。 如果速度传感器确定移动设备以低于第二阈值的速度行进,则速度传感器被停用。