Underground Construction Device Automatic Calibration
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Solution Overview
Problem
Existing ground working methods require manual input of setting parameters by machine operators, which is inefficient and dependent on their knowledge and experience, especially in non-uniform or unknown ground conditions.
Innovation Solution
An automatic calibration program is executed by the control and evaluation unit, using multiple calibration sections with different sets of setting parameters to determine suitable parameters for ground working, independent of operator expertise and ground type, by analyzing state variables from these sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual input of setting parameters by machine operator is used, then the method can be operated with simple equipment, but the efficiency and reliability deteriorate due to dependence on operator knowledge and experience
Solution Approach 1:
The system performs self-calibration by automatically executing multiple calibration sections with different setting parameters and evaluating the results to determine optimal parameters for ground working, eliminating the need for manual operator input while maintaining equipment simplicity
Solution Approach 2:
The control and evaluation unit executes calibration sections before actual ground working to pre-determine suitable setting parameters based on ground conditions, allowing the system to adapt automatically without requiring operator expertise during the main operation
2Productivity
If manual input of setting parameters is required, then the device complexity is low, but the productivity and reliability worsen in non-uniform or unknown ground conditions
Solution Approach 1:
The control and evaluation unit continuously monitors state variables during calibration sections and uses this feedback to evaluate which setting parameters produce optimal results, automatically adjusting parameters for subsequent ground working based on observed performance
Solution Approach 2:
The system automatically varies multiple setting parameters across different calibration sections (such as rotational speed, feed rate, pressure) and evaluates the effects of these parameter changes to identify optimal settings for the specific ground conditions encountered
3Adaptability or versatility
If calibration sections with different setting parameters are executed, then the manufacturing precision and adaptability improve, but the loss of time increases
Solution Approach 1:
The calibration process is divided into multiple distinct calibration sections, each testing specific setting parameters independently. This segmentation allows systematic evaluation of different parameters (rotational speed, feed rate, pressure) separately, making it easier to identify optimal settings while organizing the time-consuming calibration process into manageable segments
Data Source
AI summary
The invention relates to a method for ground working with an underground construction device which comprises at least one rotary drive unit for rotationally driving a ground working tool and at least one feed unit, by means of which the ground working tool is introduced into the ground for creating a hole, wherein a control and evaluation unit is provided, by means of which setting parameters are acquired and stored during ground working, at least one state value resulting from ground working is acquired and stored and the setting parameters are changed and set by the control and evaluation unit depending on the at least one acquired state value. According to the invention, it is provided that an automatic calibration is carried out by the control and evaluation unit at least at the beginning of ground working, wherein ground working is performed in a first calibration section with a first set of setting parameters predetermined by a calibration program and at least in a further second calibration section with a second set of setting parameters predetermined by the calibration program, wherein the predetermined sets of setting parameters differ from one another, and that subsequently the control and evaluation unit sets the setting parameters for further ground working depending on the state variables acquired in the calibration sections.