Mobile robot system

Mobile robot system that tracks users via low-frequency triangulation

This technology is a mobile robot system that controls driving modes (following/leading) by combining LF signal-based triangulation with gait status measurement from a wearable device. It also performs infrared-based alignment between multiple robots and gesture control via smartwatch.

Existing image processing methods require high-performance processors and consume significant battery power, while sensor network methods are limited to specific spaces and struggle with precise positioning and navigation in complex, obstacle-filled environments.

This technology utilizes multiple LF transmitters on the mobile robot to perform triangulation based on signal strength received by the user's wearable device, enabling precise positioning. It automatically switches driving modes (Mode 1: Following, Mode 2: Leading) based on the user's gait and rotation, and includes alarm and gesture control via smartwatch, as well as formation driving control through infrared communication between multiple robots.

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Key Features:

• A wearable device provided for the user and a mobile robot that travels according to the user's position and movement direction
• A carriage, a drive unit for moving the carriage, and a plurality of low-frequency transmitters for transmitting low-frequency signals to detect the position of the wearable device
• A driving control unit that manages the drive unit to ensure the mobile robot maintains a preset distance and direction from the user
• A positioning unit that identifies the location of the wearable device using triangulation based on the signal strength of the low-frequency signals received by the device

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