Abstract: An insole having a position tracking function according to an embodiment of the present invention includes: an insole body including a ball of the foot support part which supports the front part of the sole and a heel support part which supports the rear part of the sole; a GPS antenna for receiving a GPS signal; a mobile communication antenna for transmitting or receiving a mobile communication signal; a wireless charging coil for wirelessly receiving power; and a position tracking part connected to the GPS antenna and the mobile communication antenna to perform a position tracking function, wherein the GPS antenna is seated on the ball of the foot support part of the insole body and a container is seated on the heel support part of the insole body.

Abstract: The present invention relates to a low-frequency stimulator using music, and a weight-loss assisting system having a low-frequency stimulator. The low-frequency stimulator according to an embodiment of the present invention includes: a beat extracting unit extracting a beat through a sound pressure magnitude comparison between one or more acoustic signals having different frequencies generated when music is played on a music player; a pulse generator generating a pulse having the same magnitude as that of the extracted beat; and a pair of electrode pads attached to a user's body and applying an electrical stimulus having an intensity corresponding to the magnitude of the generated pulse to the user's body.

Abstract: The present invention relates to a low-frequency stimulator using music, and a weight-loss assisting system having a low-frequency stimulator. The low-frequency stimulator according to an embodiment of the present invention includes: a beat extracting unit extracting a beat through a sound pressure magnitude comparison between one or more acoustic signals having different frequencies generated when music is played on a music player; a pulse generator generating a pulse having the same magnitude as that of the extracted beat; and a pair of electrode pads attached to a user's body and applying an electrical stimulus having an intensity corresponding to the magnitude of the generated pulse to the user's body.