Construction Plan Determination for Work Machines at Changing Sites
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Solution Overview
Problem
Construction site productivity is hindered by the need to efficiently transport soil across changing topography, where excavation and embankment regions are distributed across multiple areas, and the sequence of travel paths significantly impacts construction efficiency.
Innovation Solution
A system and method that determine a construction plan by acquiring and analyzing excavation and embankment region data, considering topography changes, to optimize travel paths and sequences for work machines, using a region data module and planning module within a computer-based system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple combinations of travel paths are assumed to link excavation regions and embankment regions, then construction efficiency can be improved, but the complexity of determining the optimal construction plan increases
Solution Approach 1:
The system dynamically determines travel paths and construction sequences by simulating topography changes as construction progresses. The travel paths are not fixed but are recalculated based on the current state of the construction site, allowing the plan to adapt to changing conditions and maintain optimal efficiency throughout the construction process.
Solution Approach 2:
The system performs preliminary simulation of topography changes and travel path variations before finalizing the construction plan. By pre-calculating the effects of different construction sequences and path combinations on the evolving topography, the system identifies the most efficient plan in advance, avoiding the need to manage multiple complex options during actual construction.
2Productivity
If the sequence of construction is optimized in consideration of topography changes, then construction efficiency is improved, but the computational complexity and time required for planning increases
Solution Approach 1:
The system uses periodic simulation steps to evaluate topography changes at key stages of construction. Instead of continuously recalculating, the system divides the construction process into discrete phases, simulating and evaluating travel paths at each phase boundary. This periodic approach maintains accuracy while reducing computational burden and planning time.
3Productivity
If travel paths are re-planned based on changing topography, then construction efficiency is maintained, but the complexity of path determination increases
Solution Approach 1:
The system incorporates feedback loops where the results of each construction phase (actual topography changes) are fed back into the planning process. The simulation compares predicted topography with actual outcomes, and subsequent travel path determinations are adjusted based on this feedback, creating an adaptive system that maintains efficiency without requiring overly complex deterministic algorithms.
Data Source
AI summary
A system includes a region data module and a planning module. The region data module acquires excavation region data and embankment region data. The excavation region data indicates positions of a plurality of excavation regions at a work site. The embankment region data indicates positions of a plurality of embankment regions at the work site. The planning module determines, as a construction plan, a construction sequence and a target travel path including a combination of a plurality of travel paths connecting the excavation regions and the embankment regions while taking into account a change in a topography at the work site.