Road Machine Cross-Slope Replication for Accurate Multi-Pass Paving
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Solution Overview
Problem
Existing methods for setting working parameters of construction machines during road surface repair, such as milling or laying construction layers, suffer from errors due to human factors and require costly 3D surveying and modeling, leading to uneven road surfaces and inadequate drainage.
Innovation Solution
A system that automatically records and replicates cross-slope data using a control device and communication port, allowing real-time adjustment of working parameters based on previous travel data, eliminating the need for expensive 3D modeling and minimizing human error.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual control of working parameters is used, then operator flexibility is maintained, but human error increases and precision deteriorates
Solution Approach 1:
The system records cross-slope data from previous travels and automatically copies this information to subsequent travels. The control unit retrieves stored cross-slope values based on GPS coordinates and applies them to maintain consistent slopes across multiple passes, eliminating manual transcription errors and ensuring precision without human intervention.
Solution Approach 2:
The system continuously monitors the construction machine's position via GPS and automatically adjusts working parameters based on recorded data from previous travels. This closed-loop feedback mechanism ensures that cross-slope values are consistently replicated across multiple travels while allowing manual override when necessary, resolving the contradiction between automation precision and operator flexibility.
2Manufacturing precision
If 3D surveying and modeling is used, then topography accuracy is improved, but costs increase significantly
Solution Approach 1:
The system performs preliminary recording of cross-slope data during the first travel and automatically retrieves this information for subsequent travels. By preparing and storing the necessary topographic information in advance during initial passes, the system eliminates the need for expensive 3D surveying and modeling while maintaining accurate topography control throughout the project.
Solution Approach 2:
Instead of performing expensive 3D surveying for each travel, the system copies cross-slope data from the first travel to subsequent travels using GPS coordinate matching. This approach achieves comparable topography accuracy at a fraction of the cost by reusing recorded information rather than conducting repeated surveys.
3Ease of operation
If cross-slope values are manually transcribed between travels, then flexibility is maintained, but errors increase due to human factors
Solution Approach 1:
The control unit automatically copies cross-slope values from the database based on GPS coordinates, eliminating manual transcription entirely. The system retrieves stored values and applies them automatically, ensuring slope consistency across travels while removing the source of human error. Operators retain flexibility through the ability to override automatic values when needed.
Solution Approach 2:
The system replaces the mechanical process of manual data transcription with an automated electronic information retrieval and transmission system. The control unit communicates with the GPS receiver and database to automatically obtain and apply cross-slope values, substituting human manual operations with automated mechanical-electronic systems that eliminate transcription errors.
4Manufacturing precision
If automated control is implemented, then precision is improved, but device complexity increases
Solution Approach 1:
The control unit serves multiple functions: it records cross-slope data during travels, stores information in the database, retrieves values for subsequent travels, and automatically adjusts working parameters. By consolidating these functions into a single multi-functional device, the system achieves high precision without proportionally increasing overall system complexity.
Solution Approach 2:
The system uses simple data copying and retrieval operations rather than complex real-time calculations. The control unit retrieves pre-recorded cross-slope values from the database based on GPS coordinates and applies them directly, using straightforward information transfer mechanisms that minimize computational complexity while maintaining high precision in working parameter control.
Data Source
AI summary
The invention relates to a method of repairing the surface of roads, highways, or other transport routes and earthworks in transport and civil engineering, using a method of recording and future functionality dependent adjustment of the cross-slope of the work of a construction machine depending on its spatial position, hereinafter referred to as slope replication, and a device for carrying out this method. In particular, it refers to the replication of the slope during the travel of a road milling machine or the laying of a construction layer by a road paver.