Mobile Robot Ground Projection for Travel Intention Guidance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional methods for mobile robots to communicate their traveling intentions to pedestrians, such as voice broadcasting, are inefficient and inaccurate, especially in noisy environments like restaurants and shopping malls, leading to lower interaction efficiency and accuracy.
Innovation Solution
Equipping mobile robots with a projection device and environmental perception sensors to project intended travel paths onto the ground, using real-time obstacle and map data to determine projection parameters and display travel intentions visually.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If voice broadcasting is used to communicate traveling intentions, then the mobile robot can inform pedestrians of its intentions, but the communication efficiency and accuracy deteriorate in noisy environments
Solution Approach 1:
The patent replaces the acoustic communication system (voice broadcasting) with a visual communication system (ground projection). The projection device displays traveling path information directly on the ground, substituting sound-based interaction with light-based visual interaction, thereby eliminating the impact of noise on communication effectiveness.
Solution Approach 2:
The patent introduces the ground surface as an intermediary medium for information transmission. Instead of direct voice communication between the robot and pedestrian, the traveling intention is projected onto the ground as a visual indicator, which then conveys information to the pedestrian. This intermediary visual channel bypasses the noisy acoustic environment.
2Loss of information
If prompt sounds are used to transmit information, then the mobile robot can describe its intentions to pedestrians, but the transmission accuracy deteriorates due to distance and environmental factors
Solution Approach 1:
The patent transitions from auditory information transmission (three-dimensional sound propagation) to visual information transmission through ground projection (two-dimensional surface display). By projecting the traveling path directly onto the ground in the spatial dimension where the pedestrian is already positioned, the system eliminates the need for sound to propagate through air over distance, thereby preventing information loss due to distance and environmental acoustic conditions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances interaction efficiency and accuracy by clearly conveying travel intentions to pedestrians through visual projections, overcoming the limitations of voice-based communication in noisy environments.
Implementation Method 1
controlling the projection device according to the projection parameter to project the to-be-projected pattern onto the ground projection region
Data Source
AI summary
An interaction method for a mobile robot comprises: acquiring map data information of a space in which a mobile robot is located, and acquiring real-time environment perception data collected by an environment perception sensor, the real-time environment perception data comprising real-time obstacle information, and real-time indication information for indicating a road condition around the mobile robot; acquiring target traveling path information of the mobile robot on the basis of the real-time obstacle information and the map data information, and determining a ground projection region according to the target traveling path information and the real-time indication information; acquiring a pattern to be projected, and determining a projection parameter corresponding to said pattern, wherein said pattern is used for indicating a traveling intention of the mobile robot; and controlling a projection apparatus according to the projection parameter, so as to project said pattern onto the ground projection region.