Multi-Axis Servomotor Tuning With Synchronized Trajectory Display
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Solution Overview
Problem
Evaluating the appropriateness of setting conditions for multiple axes operating in cooperation within a servo control system is challenging due to the difficulty in visually assessing the state and followability of each axis's performance.
Innovation Solution
A servomotor adjustment device with a dual-display interface that shows measurement data and control trajectories on the same time base, allowing for the visualization of target and control trajectories alongside error identification, facilitating the evaluation of parameter settings and mechanical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If measurement data and control trajectories are displayed separately for each axis, then detailed analysis of individual axis performance is possible, but evaluation of multi-axis cooperation state becomes difficult
Solution Approach 1:
The patent merges the display of measurement data (time-series graphs) and control trajectories (target and actual positions) into a unified visual interface. By overlaying multiple axes' data and trajectories on the same display with synchronized time bases, the system enables simultaneous evaluation of both individual axis performance and multi-axis cooperation state, resolving the contradiction between detailed measurement precision and ease of comprehensive evaluation.
2Reliability
If multiple parameters are adjusted for each motor, then servo control performance can be optimized, but the complexity of adjustment operations increases
Solution Approach 1:
The patent creates a universal adjustment interface that can evaluate and adjust multiple servo parameters (gain values, filter characteristics) across multiple axes simultaneously. The unified display showing measurement data and control trajectories for all axes enables the operator to evaluate the effect of parameter adjustments on the entire multi-axis system rather than adjusting each axis independently, thereby reducing adjustment operation complexity while maintaining optimized servo control performance.
3Measurement precision
If time-series data for each axis is displayed individually, then response characteristics of each motor can be evaluated, but the followability of multi-axis cooperation cannot be assessed
Solution Approach 1:
The patent combines individual axis measurement data display with multi-axis control trajectory display in a unified interface. By synchronizing the time bases and overlaying the data, the system preserves the ability to evaluate response characteristics of each motor while simultaneously displaying the control trajectories that reveal the followability and coordination state of the entire multi-axis system, thus preventing loss of multi-axis cooperation information.
Data Source
AI summary
To improve the usability so that the result of adjustment of a plurality of axes operating in cooperation is easily evaluated. An adjustment apparatus displays a graph indicating a temporal change of measurement data for each control axis and a control instruction on the same time base in a first area in a screen, and displays a control trajectory of a control position of each control axis, the control instruction, and a target trajectory of a target position in the screen.