Mobile Robot Display Positioning for User Posture Adaptation
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Solution Overview
Problem
Mobile robots equipped with displays do not consider real-time changes in user posture, leading to ergonomically inefficient viewing experiences when users adopt various postures.
Innovation Solution
A mobile robot equipped with sensors, a display, and processors that adjust the display's angle and position based on user posture changes, identifying necessary adjustments through sensing data to enhance ergonomic viewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the mobile robot uses a fixed display position and angle, then the device structure is simple, but the viewing experience becomes ergonomically inefficient when users adopt various postures
Solution Approach 1:
The display position and angle are made dynamically adjustable based on real-time detection of user posture changes. The processor continuously monitors user position data and automatically adjusts display parameters (position coordinates and rotation angle) to match the user's current posture, transforming a static display system into a dynamic one that adapts to varying viewing conditions.
Solution Approach 2:
The system implements a feedback loop where the sensor detects user posture, the processor analyzes the posture change amount, and the display is adjusted accordingly. This closed-loop control ensures the display maintains an ergonomic viewing angle by continuously responding to user position changes, with the feedback mechanism comparing current posture against threshold values to determine when adjustment is necessary.
2Ease of operation
If the mobile robot continuously adjusts the display based on user posture, then the viewing experience is optimized, but the energy consumption increases
Solution Approach 1:
Instead of continuously adjusting the display, the system performs adjustments only when necessary - specifically when the user posture change amount exceeds a predetermined threshold. This partial action approach avoids unnecessary adjustments during minor posture variations, thereby reducing energy consumption while still maintaining ergonomic viewing conditions when they are actually needed.
Solution Approach 2:
The display adjustment operates periodically based on detected posture changes rather than continuously. The system monitors user posture at regular intervals and triggers adjustments only when the monitored changes meet the threshold criteria, creating a periodic adjustment pattern that conserves energy compared to continuous operation.
3Manufacturing precision
If the mobile robot detects detailed user posture changes, then the display adjustment precision is improved, but the device complexity increases
Solution Approach 1:
The system focuses detection and adjustment on the critical local parameter that most affects viewing comfort - the angle between the display surface and the user's line of sight. Rather than tracking all possible posture parameters, the system specifically monitors the relevant angular relationship and adjusts display orientation to maintain optimal local viewing geometry, achieving high precision where it matters most.
Solution Approach 2:
The system achieves precise display positioning by changing key parameters (display position coordinates and rotation angle) based on detected user posture. The processor calculates the required parameter changes to maintain the display at a predetermined optimal angle relative to the user's head position, using mathematical relationships to translate posture detection data into precise display adjustment commands.
Data Source
AI summary
A mobile robot including at least one sensor; a display; a driver configured to adjust an angle of the display relative to a user; memory storing instructions; and one or more processors configured to execute the instructions. The instructions, when executed by the one or more processors individually or collectively, cause the mobile robot to identify a posture change amount of the user for a threshold time based on sensing data acquired by the at least one sensor, based on the posture change amount being less than a threshold change amount, identify that position adjustment of the display is necessary, based on identifying that the position adjustment of the of the display is necessary, identify a target position of the display and a target angle of the display, and control the driver based on the target position of the display and the target angle of the display.