Calibrated hardware sensors for estimating real-world distances
    11.
    发明授权
    Calibrated hardware sensors for estimating real-world distances 有权
    用于估计真实距离的校准硬件传感器

    公开(公告)号:US09341471B2

    公开(公告)日:2016-05-17

    申请号:US14537852

    申请日:2014-11-10

    Abstract: In some embodiments, methods and systems are provided for assisting a user in determining a real-world distance. Hardware-based sensors (e.g., present in a mobile electronic device) may allow for a fast low-power determination of distances. In one embodiment, one or more telemetry-related sensors may be incorporated into a device. For example, data detected by a frequently-calibrated integrated accelerometer may be used to determine a tilt of the device. A device height may be estimated based on empirical data or based on a time difference between a signal (e.g., a sonar signal) emitted towards the ground and a corresponding detected signal. A triangulation technique may use the estimated tilt and height to estimate other real-world distances (e.g., from the device to an endpoint or between endpoints).

    Abstract translation: 在一些实施例中,提供了用于帮助用户确定真实世界距离的方法和系统。 基于硬件的传感器(例如,存在于移动电子设备中)可以允许对距离的快速低功率确定。 在一个实施例中,可以将一个或多个与遥测相关的传感器并入设备中。 例如,可以使用由经常校准的集成加速度计检测的数据来确定装置的倾斜度。 可以基于经验数据或者基于朝向地面发射的信号(例如,声纳信号)和相应的检测到的信号之间的时间差来估计设备高度。 三角测量技术可以使用估计的倾斜度和高度来估计其他真实距离(例如,从设备到端点或端点之间)。

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