Robot Pose Measurement Using Infrared Identification Signals
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Solution Overview
Problem
Current methods for positioning robots in arbitrary environments are inefficient, as they rely on cumbersome landmark installations, error-prone laser sensors for non-uniform surfaces, and fail to accurately determine the positions of multiple robots in real-time.
Innovation Solution
An apparatus and method using light emitting and receiving parts to transmit and receive photo signals with identification information, enabling accurate determination of positional information between robots through unique IDs, transmit times, and pose calculations, allowing for precise distance and angle measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a landmark is installed in the ceiling for positioning, then robots can transmit and receive infrared signals for pose measurement, but the installation process becomes cumbersome and requires pre-known landmark positions
Solution Approach 1:
The patent extracts the positioning function from the fixed ceiling landmark and relocates it to movable robots themselves. Each robot carries light emitting and receiving parts, transforming the positioning system from infrastructure-dependent to self-contained, thereby eliminating installation complexity while maintaining measurement precision.
Solution Approach 2:
Each robot equips itself with light emitting parts that transmit identification information and light receiving parts that detect other robots. The system becomes self-service as robots independently perform positioning without external landmarks, using their own hardware to measure relative positions in real-time.
2Ease of operation
If laser sensors are used for scanning surrounding environments, then robots can acquire two-dimensional maps, but positioning accuracy deteriorates in non-uniform surfaces
Solution Approach 1:
The patent replaces the mechanical laser scanning system with an optical direct-detection system. Instead of scanning environments and processing complex 2D maps, robots use light emitting parts to transmit identification information and light receiving parts to directly detect signals from other robots, achieving accurate positioning without environmental surface dependencies.
3Loss of information
If current positioning methods are used, then robots can identify their own positions, but real-time position determination of other robots becomes impossible
Solution Approach 1:
The patent segments the positioning function into independent light emitting and light receiving parts that can operate autonomously. Each robot transmits its identification information via light emitting parts and receives information from other robots through light receiving parts, enabling simultaneous real-time position determination of all robots in the system.
Solution Approach 2:
The system implements bidirectional feedback where each robot both transmits identification information through light emitting parts and receives information from others. This mutual feedback mechanism enables real-time position determination of all robots, as each robot continuously updates knowledge of others' positions based on received light signals.
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
Enables each robot to accurately acquire and share positional information with others, enhancing task efficiency by preventing redundant efforts and integrating results effectively in dynamic environments.
Implementation Method 1
at least one light emitting part transmitting a photo signal
Implementation Method 2
at least one light receiving part receiving a photo signal transmitted from the counterpart apparatus
Data Source
AI summary
Disclosed are an apparatus for measuring position of other apparatus and a method for the same. The apparatus may comprise at least one light emitting part transmitting a photo signal, at least one light receiving part receiving a photo signal transmitted from other apparatus, and a signal processing part controlling the at least one light emitting part to transmit the photo signal including identification information of itself, acquiring identification information of the other apparatus based on the photo signal received from the other apparatus, and acquiring a positional information of the other apparatus based on the acquired identification information of the other apparatus. Thus, the apparatus located in an arbitrary space may accurately acquire relative positional information of counterpart apparatuses.