Marker Teaching Interface for Adaptive Robot Position Correction
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Solution Overview
Problem
Current methods for correcting the position of a robot using a camera attached to its tip to measure a marker in a workspace are inefficient, as they require multiple markers for accuracy, but changing measurement methods between single and multiple markers complicates the process, making it time-consuming and difficult to improve position correction accuracy.
Innovation Solution
A teaching device with a user interface that allows setting information for a first marker to be used for subsequent markers, enabling easy measurement and setting of multiple markers by simplifying the process through a common user interface, allowing for seamless switching from single to multiple marker measurements based on accuracy evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If measurement is performed using only one marker, then cycle time and man-hours are reduced, but measurement precision and position correction accuracy are insufficient
Solution Approach 1:
The system dynamically adjusts the number of markers to measure based on the measured accuracy. When accuracy meets the threshold, only one marker is measured; when accuracy is insufficient, additional markers are automatically measured. This dynamic adjustment resolves the contradiction by adapting the measurement process to actual accuracy requirements rather than using a fixed approach.
Solution Approach 2:
The system implements a feedback mechanism where the accuracy of position correction is evaluated after initial measurement, and this evaluation feeds back into the decision of whether to measure additional markers. The flowchart shows that measurement accuracy is continuously monitored and used to determine subsequent measurement actions, resolving the contradiction through closed-loop control.
2Measurement precision
If measurement method changes between one marker and multiple markers, then position correction accuracy is improved, but device complexity and operation difficulty increase
Solution Approach 1:
The user interface is designed to handle both single-marker and multi-marker measurements using the same operational流程和settings. The teaching device provides a unified interface that automatically adapts to the number of markers needed, eliminating the need for different measurement methods or procedures. This universal interface resolves the contradiction by maintaining operational simplicity while achieving high accuracy through automatic multi-marker measurement when needed.
Solution Approach 2:
The system automatically determines whether additional markers need to be measured based on the accuracy evaluation, without requiring user intervention or manual switching of measurement methods. The teaching device self-adjusts the measurement process by automatically proceeding to measure additional markers when accuracy is insufficient, as shown in the flowchart's automatic branching logic.
3Measurement precision
If multiple markers are measured to improve accuracy, then position correction accuracy is improved, but loss of time increases due to complex setup procedures
Solution Approach 1:
The system performs preliminary accuracy evaluation after measuring the first marker, and only then determines whether additional markers need to be measured. This preliminary action approach allows the system to quickly achieve acceptable accuracy with minimal markers when possible, reducing setup time while maintaining the capability to measure more markers if needed for higher precision applications.
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
This approach enables users to easily set up measurements for multiple markers in a manner similar to single-marker setups, reducing the complexity and time required to achieve accurate position correction, thereby improving the efficiency of robot positioning in automated systems.
Implementation Method 1
measuring a marker installed in a workspace by a visual sensor
Data Source
AI summary
Provided is a teaching device that is used to create a program for measuring, with a visual sensor, markers installed in a work space, the teaching device comprising a user interface creation unit that creates a user interface for inputting setting information pertaining to the measurement of a marker, wherein the user interface creation unit makes it possible to use first setting information input for a first marker in settings for a second marker in the user interface.