Soil Compactor Path Control Using As-Built Compaction Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ensuring a sufficient but not excessive compaction level of soil during soil compaction processes, as existing methods lack accurate control and verification of compaction levels and may damage the soil structure with excessive compaction.
Innovation Solution
A method involving the generation of an as-built model of compaction level, determining boundaries, and creating an up-to-date travel path for soil compactors, using location and travel data, and continuous measurement of compaction levels to ensure precise and controlled compaction, preventing excessive compaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the soil compactor drives a sufficient number of times over each part of the area to be compacted to achieve sufficient compaction level, then the compaction quality is improved, but it becomes difficult to verify whether the sufficient number of times has been achieved and whether excessive compaction has occurred
Solution Approach 1:
The patent implements a feedback mechanism by equipping the soil compactor with a measurement arrangement that continuously measures the compaction level of the ground during operation. The control system receives this measurement data and compares it against target values, enabling real-time verification of compaction quality and prevention of excessive compaction. This feedback loop solves the verification problem by providing objective data on compaction levels achieved.
Solution Approach 2:
The patent introduces an intermediary measurement arrangement and control system that acts as a mediator between the compaction process and the operator. This intermediary system automatically tracks compaction times, measures compaction levels, and provides guidance information to the operator, eliminating the need for manual verification and ensuring accurate recording of compaction data.
2Length of stationary object
If pressure pulses or vibrations are produced to the soil to extend compaction effect deeper, then the compaction depth is improved, but it becomes necessary to verify that the intended compaction level has been provided without excessive compaction
Solution Approach 1:
The measurement arrangement continuously measures the compaction level at different depths during the compaction process. The control system uses this feedback information to monitor whether the intended compaction level has been achieved at various depths and to prevent excessive compaction, even when pressure pulses or vibrations are applied to extend compaction depth.
Solution Approach 2:
The control system dynamically adjusts the compaction process based on real-time measurement data. When the target compaction level is reached at a specific depth, the system can modify subsequent compaction actions to avoid excessive compaction, enabling precise control over compaction depth and level throughout the soil profile.
3Reliability
If manual verification of compaction times is used, then the device complexity is kept low, but the reliability of achieving sufficient compaction level cannot be ensured
Solution Approach 1:
The soil compactor performs self-verification of compaction levels through its integrated measurement arrangement. The system automatically tracks compaction times, measures achieved compaction levels, and provides guidance information without requiring external verification equipment or complex manual monitoring procedures, making the reliability improvement cost-effective.
Solution Approach 2:
The patent replaces manual verification methods with automated electronic measurement and control systems. The measurement arrangement uses sensors and data processing to automatically monitor compaction levels, substituting manual observation and recording with reliable electronic measurement, thereby ensuring consistent and accurate verification of compaction achievement.
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 provides accurate knowledge of achieved compaction levels, ensuring sufficient compaction without excessive pressure, thus maintaining soil structure integrity and optimizing compaction processes.
Implementation Method 1
producing, by at least one soil compacting device forming part of the soil compactor, pressure pulses or vibrations to the soil to be compacted
Data Source
AI summary
A method for compacting soil by a soil compactor including at least one soil compacting device, and a soil compactor. The method includes generating an as-built model of compaction level covering at least a work order area to be compacted, determining boundaries for the work order area and determining location data for an area over which the at least one soil compacting device travels. Furthermore, it is generated an up-to-date travel path to be driven to cover the work order area by the at least one soil compacting device by using compactor operation for compacting soil and measurement function for measuring the compaction level of soil while compacting. The soil compactor is driven according to the up-to-date travel path and a location-specific as-built compaction level of soil and determined boundaries for the work order area are saved to the as-built model of compaction level.