-
公开(公告)号:US08976063B1
公开(公告)日:2015-03-10
申请号:US14285183
申请日:2014-05-22
Applicant: Google Inc.
Inventor: Dale Kris Hawkins , Marc Stogaitis , Andrew Kirmse , David James Hawkey
CPC classification number: G01S19/05 , G01C21/165 , G01S19/14 , G01S19/49 , G08G1/096883
Abstract: In one example, a method includes determining, based on first motion data, that a change in an angle of a mobile computing device relative to gravity satisfies a threshold amount of change, and, responsive to determining that the change in the angle satisfies the threshold amount of change, initiating, at a first position of the mobile computing device, storage of second motion data, wherein the first position is a reference position. The method may also include determining, based on an external signal, a second position of the mobile computing device, wherein the second position is a current position of the mobile computing device that is different from the reference position, and, responsive to determining the second position of the mobile computing device, determining, based on the second motion data and the current position, the reference position of the mobile computing device.
Abstract translation: 在一个示例中,一种方法包括基于第一运动数据确定移动计算设备相对于重力的角度的变化满足阈值的变化量,并且响应于确定角度的变化满足阈值 改变量,在移动计算设备的第一位置启动第二运动数据的存储,其中第一位置是参考位置。 该方法还可以包括基于外部信号来确定移动计算设备的第二位置,其中第二位置是与参考位置不同的移动计算设备的当前位置,并且响应于确定第二位置 移动计算设备的位置,基于第二运动数据和当前位置确定移动计算设备的参考位置。