사용자 추종 및 도난 방지를 위한 스마트 캐리어 설계 및 구현

초록

This study proposes a smart luggage system that integrates autonomous following and active theft-prevention mechanisms. The proposed design estimates the user’s distance using BLE RSSI and calculates heading information with an IMU to achieve stable tracking. For theft prevention, the system incorporates wheel-lock control via encoders, lifting detection using a ToF sensor, and an audible siren alarm for real-time response. Experimental results demonstrate that the smart luggage achieved high accuracy in distance estimation within 2m and maintained a heading error of less than 6°, ensuring reliable control performance. These findings indicate that, unlike conventional luggage limited to simple following and post-theft reporting, the proposed smart luggage provides both prevention and reactive theft responses, thereby advancing toward an intelligent mobile platform with enhanced security.

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