Asphalt Compactor Pass Planning With 3D GPS Mat Mapping
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Solution Overview
Problem
Existing compactor systems in road construction lack accurate 3-D spatial planning for asphalt mats, leading to inefficient compaction patterns and potential errors in compacting processes.
Innovation Solution
A system utilizing RTK-enabled GPS receivers on both sides of a paver machine's screed to communicate location information to a compactor machine, enabling auto-steering and pass planning, along with temperature sensors for optimal compaction timing, ensuring precise compaction routes and patterns.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional compactor systems are used without 3-D spatial planning, then the system complexity is low, but the manufacturing precision and reliability of compaction are insufficient
Solution Approach 1:
The patent replaces traditional mechanical compaction control with GPS-based spatial planning and automated guidance systems. The compactor uses GPS receivers, controllers, and auto-steering technology to receive and execute predefined pass patterns, substituting manual mechanical control with electronic navigation and automated positioning to achieve precise 3-D compaction planning
Solution Approach 2:
The system creates a digital copy or map of the work area boundaries and pass patterns before compaction begins. The controller stores predefined pass patterns and uses GPS to track the compactor's position, comparing real-time location against the stored digital map to ensure accurate execution of compaction routes without requiring continuous human intervention
2Productivity
If manual compaction planning is used, then the device complexity is low, but the productivity and efficiency are reduced
Solution Approach 1:
The compactor system performs self-guidance and self-positioning using onboard GPS receivers and controllers. The auto-steering capability allows the compactor to automatically follow predefined pass patterns without continuous operator intervention, enabling the machine to service itself in terms of navigation and positioning, thereby improving productivity
Solution Approach 2:
The system continuously monitors the compactor's position via GPS receivers and compares it against the predefined pass patterns stored in the controller. This feedback mechanism allows real-time correction of positioning deviations and ensures accurate execution of compaction routes, optimizing compaction efficiency through automated control
3Manufacturing precision
If basic GPS tracking is used, then the measurement precision is moderate, but the manufacturing precision of compaction patterns is insufficient
Solution Approach 1:
The system divides the compaction area into discrete pass patterns with specific geometric shapes and dimensions. By segmenting the work area into manageable sections with defined boundaries and routes, the system can apply precise GPS tracking and control to each segment, ensuring accurate execution of complex compaction patterns that would be difficult to achieve with continuous tracking alone
Data Source
AI summary
A system for controlling a compactor machine can include a first GPS receiver on one side of a screed of a paver machine and a second GPS receiver on a second side of the screed, the first and second GPS receivers configured to communicate location information of the first and second sides of the screed, respectively, to a compactor machine; and a controller configured to receive the location information from screed and define a pass pattern for the compactor machine in view of the location information.