Using Portable Device Sensors to Recognize Height Changing Modes of Motion

In portable navigation, the need to recognize the motion mode of the user, is useful - if not necessary - to improve the positioning estimation. This paper explains the use of sensors in a portable device, such as a smartphone, to recognize the user's mode of motion when a change in height is detected. The modes of motion detected are walking up or down stairs, taking the elevator, and standing or walking on an escalator. The portable device contains an accelerometer triad, gyroscope triad, a barometer, and occasionally a magnetometer triad. The solution is dependent on the sensors, and does not require satellite or wireless positioning. The height motion mode recognition module has been implemented in real-time on several brands of various consumer portable devices, including smartphones, tablets, smartwatches, and smart glasses.

在便携式导航中，识别用户的运动模式对于改进定位估计即使不是必需的，也是有用的。本文阐述了在便携式设备（如智能手机）中使用传感器，以便在检测到高度变化时识别用户的运动模式。所检测到的运动模式包括上下楼梯、乘坐电梯以及站在或走在自动扶梯上。该便携式设备包含一个加速度计三元组、一个陀螺仪三元组、一个气压计，偶尔还包含一个磁力计三元组。该解决方案依赖于传感器，不需要卫星或无线定位。高度运动模式识别模块已经在包括智能手机、平板电脑、智能手表和智能眼镜等多种消费类便携式设备的几个品牌上实时实现。