Robot Calibration Positioning Using Visual Field Size

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Solution Overview

Problem

Current methods for setting a calibration range for robots require laborious visual recognition to avoid zones where the robot cannot operate, necessitating a simpler approach to automate this process.

Innovation Solution

A robot control device and method that utilizes a space information acquisition unit to capture images of the operating space, calculate the actual visual field size, and generate a calibration position based on this information, allowing for automated setting of the calibration range without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual visual recognition is used to set calibration range, then robot operational safety is ensured, but calibration process complexity increases

Engineering Contradiction:

Improverobot operational safetyVSAvoidcalibration process complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The system performs self-calibration by automatically generating the calibration range using the robot's own operational parameters and the space information acquisition unit's visual field data, eliminating the need for manual visual recognition and complex calibration procedures

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces manual visual recognition with an automated computational system that uses the space information acquisition unit to capture images and calculate the calibration range mathematically, substituting human visual processing with machine-based image processing and coordinate transformation

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If manual calibration range setting is performed, then accurate calibration is achieved, but time consumption increases

Engineering Contradiction:

Improvecalibration accuracyVSAvoidcalibration time

Core Design Contradiction:

Measurement precisionVSLoss of time

Solution Approach 1:

The system pre-calculates the calibration range by obtaining the actual visual field size of the space information acquisition unit and using it to determine the calibration range before actual calibration operations begin, eliminating time-consuming manual adjustments during the calibration process

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent replaces time-consuming manual calibration operations with automated image capture and coordinate transformation processes, where the controller automatically calculates calibration positions based on the visual field size and captured images

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS20240342918A1Robot control device, robot control system, and robot control method

Publication Date: 2024.10.17 KYOCERA CORP

AI summary

A robot control device includes a controller. The controller obtains an actual visual field size of a space information acquisition unit configured to capture an image of an operating space of a robot and space information obtained by the space information acquisition unit, sets a predetermined first position based on the actual visual field size and the space information, and generates a calibration position of the robot based on the first position and the actual visual field size.