Guide Robot Position Control for Comfortable User Following
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Solution Overview
Problem
Conventional guidance systems may position a robot relative to a user in a way that feels uncomfortable, leading to user stress due to varying personal space preferences and environmental dynamics.
Innovation Solution
A guide robot control device that recognizes the relative position of the robot to the user and determines a target position based on the user's movement start, considering both static and dynamic environmental data to maintain a comfortable distance and orientation, with adjustments made as necessary to reduce stress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the robot controls its position based on user walking speed and movement direction, then the robot can follow the user, but the user may feel stressed due to uncomfortable positioning
Solution Approach 1:
The system dynamically changes the target position parameters based on the user's actual movement state. Instead of using predetermined positions, the target position is adjusted according to real-time detection of user movement start timing, creating a dynamic parameter adaptation that reduces user stress while maintaining reliable following
Solution Approach 2:
The system implements feedback by detecting user movement state and using this information to adjust the robot's target position. The detection unit monitors user movement, and this feedback loop allows the system to adapt to user preferences and reduce stress through continuous adjustment of positioning parameters
2Device complexity
If the robot uses a fixed target position, then the control is simple, but the position may be uncomfortable for users with different personal space preferences
Solution Approach 1:
The system transitions from static to dynamic positioning by making the target position changeable based on user movement state. The target position determination unit dynamically adjusts positioning parameters according to detected user movement, providing adaptability to different user preferences while maintaining relatively simple control architecture
Solution Approach 2:
The system changes positioning parameters dynamically based on user movement detection. Instead of fixed coordinates, the target position is adjusted according to when the user actually starts moving, allowing adaptation to individual user preferences without significantly complicating the control system
3Object-affected harmful factors
If the robot determines target position based on user start timing, then user comfort improves, but the system must detect and respond to timing variations
Solution Approach 1:
The system uses feedback from movement detection to adjust target position timing. The detection unit monitors user movement start timing, and this feedback enables the system to compensate for timing variations and maintain user comfort despite the added detection complexity
Data Source
AI summary
A server (3) includes a relative position recognition unit (3b) that recognizes a relative position of a robot (2) with respect to a user, and a target position determination unit (3f3) that determines a target position serving as a target of the relative position during guidance, based on the relative position when the user starts to move after the robot (2) starts the guidance.