Pedestrian track plotting method, navigation method and device, handheld terminal and medium
A pedestrian dead reckoning and handheld terminal technology, applied in the field of navigation, can solve problems such as PDR heading deviation, achieve the effect of improving accuracy, avoiding too much error, and improving accuracy
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[0046] Such as figure 1 As shown, the natural walking of the human body includes three components: forward, lateral and vertical, and the three components correspond to Y P , X P ,Z P The direction of the three coordinate axes, the mobile phone coordinate axis is the coordinate axis of the inertial sensor in the mobile phone. Hold the phone in the palm of your hand while walking, the vertical axis of the phone corresponds to Y D Axis and horizontal axis correspond to X D Axis, perpendicular to screen Z D Axis, the vertical axis of the phone Y D The axis coincides with the forward component of the pedestrian. At present, in the process of calculating the pedestrian trajectory, the Y-axis of the mobile phone is used as the forward direction of the pedestrian, that is, the direction of the forward axis.
[0047] However, in the process of using mobile phones, we often encounter situations where the direction of the mobile phone is inconsistent with the forward direction of pedestrian...
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