Robot Position Calibration Control Using Spatial Feedback
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Solution Overview
Problem
Current robot control systems require repetitive calibration when abnormalities occur, leading to increased workload and inefficiency.
Innovation Solution
A robot control device and method that acquires spatial information about the operational space and determines the need for calibration based on measurement positions and results, reducing the need for recalibration by aligning the coordinate systems of the robot and spatial information acquiring unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If calibration is performed repeatedly when abnormalities occur, then the robot's positional accuracy is maintained, but the workload and operational time increase
Solution Approach 1:
The system continuously monitors the robot's actual position using spatial information from the acquiring unit and compares it with the target position. This feedback mechanism allows the system to detect positional deviations and determine whether calibration is truly necessary, rather than performing calibration repeatedly upon every abnormality. The controller uses this feedback to make intelligent decisions about calibration needs.
Solution Approach 2:
The robot control device performs self-diagnosis by automatically comparing measurement results with target positions and determining its own calibration status. The system serves itself by autonomously identifying when calibration is needed without requiring external intervention or repeated manual calibration procedures, thereby reducing operational time and workload.
2Measurement precision
If calibration is performed repeatedly when abnormalities occur, then the robot's positional accuracy is maintained, but the workload increases
Solution Approach 1:
The continuous feedback loop comparing actual position with target position enables the system to automatically determine whether calibration is needed. This eliminates the need for operators to manually perform repeated calibration procedures, significantly reducing workload while maintaining positional accuracy through intelligent, condition-based calibration decisions.
Solution Approach 2:
The system performs automatic self-assessment of its calibration status by analyzing positional data. This self-service capability allows the robot control device to manage its own calibration needs without operator intervention, reducing the workload on operators while ensuring positional accuracy is maintained when necessary.
3Productivity
If spatial information is acquired and measurement comparison is performed, then unnecessary recalibration is reduced, but the system complexity increases
Solution Approach 1:
The spatial information acquiring unit serves multiple functions: it captures the robot's position, provides feedback for calibration determination, and supports abnormality diagnosis. By making this single component multi-functional, the system achieves improved operational efficiency through intelligent calibration management without proportionally increasing overall system complexity.
Solution Approach 2:
The controller acts as an intermediary that processes spatial information from the acquiring unit, compares it with target positions, and determines calibration needs. This intermediary role allows the system to reduce unnecessary recalibration events and improve productivity, while the complexity is centralized in the controller's processing logic rather than distributed across multiple specialized components.
Data Source
AI summary
A robot control device includes a controller configured to control a robot. The controller is configured to acquire a measurement position of a movement destination of the robot, acquire a measurement result of a position of the robot calculated based on spatial information about an operational space of the robot acquired by a spatial information acquiring unit, and determine whether to perform calibration of the robot based on the measurement position and the measurement result.