Marker-Based Robot Localization for True Position and Orientation
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Solution Overview
Problem
Current technologies lack a simple and low-cost single-unit device that can be easily mounted on land robots to obtain their actual location and orientation information.
Innovation Solution
A device comprising a pinion gear, rack gear, motor, telescopic vertical arms, clamping chuck, and a marker that physically leaves a trace on the ground, allowing for direct measurement of the robot's location and orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple cameras and motion capture systems are used to obtain location information, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent extracts the essential function of location measurement from complex multi-camera systems and implements it through a single marker-based device that can be independently deployed, eliminating the need for elaborate motion capture infrastructure while maintaining measurement capability
Solution Approach 2:
The patent uses a simple physical marker as a copy or representation of the robot's location, which can be detected by standard vision systems rather than requiring specialized motion capture cameras and complex processing infrastructure
2Measurement precision
If special camera systems and motion capture equipment are deployed, then measurement precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent segments the location measurement function into two independent parts: a simple marker attached to the robot and a detection system that can process the marker. This segmentation allows the marker to be easily installed on any robot without modifying the robot itself or requiring complex system integration
Solution Approach 2:
The marker serves as a self-contained measurement device that automatically provides location information through its visual features, eliminating the need for external calibration procedures, system synchronization, or complex operational setups required by motion capture systems
3Measurement precision
If multiple cameras and complex systems are used, then measurement precision is improved, but cost increases
Solution Approach 1:
The patent employs inexpensive markers that can be easily manufactured and attached to robots, replacing expensive motion capture cameras and specialized equipment. The markers serve their purpose effectively without requiring costly infrastructure or maintenance
Solution Approach 2:
The marker design is universal and can be used with standard vision systems across different robot platforms, eliminating the need for expensive specialized motion capture equipment. This multi-functionality allows the same simple marker to work in various localization scenarios without additional cost
Data Source
AI summary
A single-unit device does not require any additional installation, can be easily mounted on the robot to be used, and obtains real location and orientation information of land robots. The device includes a pinion gear, a rack gear, a motor, an upper vertical arm, a clamping chuck, a clamping chuck lock collar, a lower vertical arm, a clamping chuck collar, a bevel gear, a chuck body, and a marker.