Abstract: Provided are a smart shoe and a data processing method thereof. The smart shoe includes: a stance phase measurement unit for, when one of two feet is set as a reference foot and a period during which the reference foot is taken off a ground and touches the ground again is set as a walking cycle, detecting acceleration and gyro in a stance phase in which the reference foot touches the ground; a swing phase measurement unit for detecting a difference between acceleration of the swing phase when the reference foot is taken off the ground and acceleration at the moment when the reference foot touches the ground; and a predict velocity update (PUPT) unit for obtaining and correcting a velocity of the stance phase condition.

Abstract: Provided are a smart shoe and a data processing method thereof, wherein a position and a direction of a pedestrian can be accurately estimated by correcting a zero velocity while modifying a velocity of a stopped state in a process of recognizing a walking action. The present invention includes: a stance phase measurement unit for, when one of two feet is set as a reference foot and a period during which the reference foot is taken off a ground and touches the ground again is set as a walking cycle, detecting acceleration and gyro in a stance phase in which the reference foot touches the ground; a swing phase measurement unit for detecting a difference between acceleration of the swing phase when the reference foot is taken off the ground and acceleration at the moment when the reference foot touches the ground; and a predict velocity update (PUPT) unit for obtaining and correcting a velocity of the stance phase condition.

Abstract: The present invention relates to a coherent frequency modulated continuous wave (FMCW) lidar system, and more particularly, to a coherent FMCW lidar system including: a lidar sensor unit configured to generate an amplified laser by interfering a first FMCW laser, which is reference light, and a second FMCW laser, which is transmitted over sea and reflected, in a coherent scheme, and detect a marine object information signal from the amplified laser; a control unit (200) configured to process the marine object information signal received from the lidar sensor unit (100) into an image; and a housing unit (10) configured to house the lidar sensor unit (100) and the control unit (200).