Mobile Robot Lighting Modules for Direction Intent Signaling
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Solution Overview
Problem
Omnidirectional autonomous robots lack effective visual cues for indicating their intended direction of movement, leading to potential collisions with other objects in their environment, and existing integrated mobile manipulator robots are inefficient and inflexible in performing complex tasks due to poor coordination between their mobile base and manipulator.
Innovation Solution
The implementation of individually-controllable lighting modules on a mobile robot, including programmable LEDs, to provide real-time visual cues about the robot's orientation and movement direction, speed, and status, allowing safe and controlled operation by indicating current and future travel directions without rotating the base, and distinguishing between autonomous and manual modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional headlights or taillights are fixed on the robot, then the robot can provide basic visual cues, but the robot must rotate frequently to maintain proper orientation of lights relative to movement direction
Solution Approach 1:
The lighting system is divided into multiple independently controllable light sources positioned at different locations on the robot. Each light source can be individually controlled to indicate direction, eliminating the need for robot rotation to orient lights properly.
Solution Approach 2:
The lighting system dynamically changes which lights are activated based on the robot's intended movement direction. The controller selectively turns on specific light sources to always indicate the correct direction of travel without requiring physical reorientation of the robot body.
2Reliability
If the robot provides comprehensive visual cues about orientation and movement, then safety is improved, but the lighting system complexity increases
Solution Approach 1:
The lighting system serves multiple functions: indicating current direction of travel, indicating future movement intent, showing operational status, and communicating autonomous versus manual mode. This multi-functionality consolidates what would otherwise require multiple separate systems into a single integrated lighting solution.
Solution Approach 2:
The controller acts as an intermediary that receives navigation information and robot status data, then translates this information into appropriate lighting patterns. This mediator coordinates the complex interactions between multiple light sources to provide clear, unambiguous visual cues without requiring complex mechanical reconfiguration.
3Device complexity
If fixed headlights and taillights are used, then the lighting system is simple, but the robot cannot effectively indicate future movement direction without rotating
Solution Approach 1:
The lighting system indicates the robot's future movement intent before the actual movement occurs. By illuminating the lights corresponding to the intended direction of travel in advance, the system communicates upcoming actions to observers without requiring the robot to rotate to face that direction first.
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 safety and efficiency by providing clear visual information about the robot's intentions and status, reducing the risk of collisions and improving task performance by enabling coordinated motion between the mobile base and manipulator.
Implementation Method 1
the plurality of individually-controllable light sources are programmable light emitting diodes (LEDs)
Data Source
AI summary
Methods and apparatus for controlling lighting of a mobile robot are provided. A mobile robot includes a drive system configured to enable the mobile robot to be driven, a navigation module configured to provide control instructions to the drive system, a plurality of lighting modules, wherein each of the plurality of lighting modules includes a plurality of individually-controllable light sources, and a controller configured to control an operation of the plurality of individually-controllable light sources based, at least in part, on navigation information received from the navigation module.