| abstract |
The present invention provides a method and apparatus for obtaining exercise information. A frequency domain conversion is performed on the detection signal of the vibration propagated in the medium to obtain a frequency domain signal, and then a signal located outside the set vibration velocity range of the frequency domain signal is removed, that is, only the vibration signal is left, and then the set vibration propagation is performed. Obtain a position time graph based on the direction. According to the present invention, it is not necessary to perform motion prediction on vibration propagation through complicated calculations, and it is an efficient motion information acquisition method because a position time graph can be obtained simply by determining the presence or absence of vibration by processing in the frequency domain. |