Automated Compactor Lane Pattern Control Around Worksite Obstructions
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Solution Overview
Problem
Existing autonomous compaction systems face productivity issues when multiple machines are operating simultaneously, as they must wait for obstructions or incomplete surface preparation, leading to reduced efficiency and delayed soil stabilization.
Innovation Solution
A method and system for controlling construction machines that involve dividing the work area into multiple lanes, selecting consecutive lanes without obstructions, and completing passes on those lanes before adjusting the pass pattern and moving to another set of lanes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the compactor follows a strict sequential pass pattern across all lanes, then compaction quality is maintained, but productivity decreases due to waiting for obstructions
Solution Approach 1:
The system dynamically adjusts the pass pattern based on real-time obstruction detection. When obstructions are detected in certain lanes, the controller modifies the predetermined pass pattern to skip those lanes and work on available lanes instead, allowing the compactor to maintain productivity while ensuring quality compaction on accessible areas
Solution Approach 2:
The controller changes the operational parameters by altering the pass sequence based on detected conditions. The system transitions from a fixed sequential pattern to a flexible pattern that adapts lane selection based on obstruction presence, enabling continuous operation without compromising compaction standards on workable lanes
2Reliability
If the compactor waits for surface preparation to complete before working, then compaction quality is ensured, but time is lost and soil stabilization is delayed
Solution Approach 1:
The system performs preliminary detection of obstruction status in each lane before executing passes. By detecting which lanes are ready for compaction in advance, the compactor can immediately begin work on prepared lanes without waiting for other machines to complete their operations, reducing idle time while maintaining quality standards
Solution Approach 2:
The dynamic pass pattern enables continuous useful action by allowing the compactor to work on any available lane as soon as it is prepared. Instead of waiting for all lanes to be ready or following a rigid sequence, the system continuously operates on accessible lanes, eliminating unnecessary waiting time and accelerating soil stabilization
3Productivity
If the compactor works on non-consecutive lanes when obstructions are present, then productivity is maintained, but system complexity increases
Solution Approach 1:
The system uses feedback from obstruction detection sensors to automatically adjust the pass pattern. The controller receives real-time information about lane availability and dynamically modifies the compaction sequence, enabling the compactor to work on non-consecutive lanes when necessary while keeping the control logic manageable through automated decision-making
Data Source
AI summary
A method for controlling a construction machine can include dividing a work area into a plurality of work lanes; selecting a first set of consecutive work lanes of the plurality of work lanes that can be worked without an obstruction; and completing one or more passes on the selected first set of consecutive work lanes before moving on to another set of the plurality of work lanes.