Multi-Work-Machine Path Control to Reduce Undug Area
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Solution Overview
Problem
Existing techniques for controlling work machines are limited to single machine operations in a work area, which hinders efficient digging processes.
Innovation Solution
A system and method for controlling multiple work machines, where a communication device and controller determine and adjust work paths for each machine to minimize the interval between their paths, thereby optimizing digging efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If only one work machine performs digging in one work area, then the control system is simple, but the digging efficiency is low
Solution Approach 1:
The work area is segmented into multiple zones with different ground conditions, and different work machines are assigned to different zones based on their capabilities. The controller segments the work area into a first work area with harder ground and a second work area with softer ground, then allocates appropriate machines to each segment to optimize overall digging efficiency.
Solution Approach 2:
The work machine dynamically changes its working parameters and location based on real-time ground condition feedback. The machine transitions between different work areas with varying ground hardness, and the controller adjusts work paths and parameters dynamically to adapt to changing conditions, thereby maintaining high digging efficiency throughout the entire work area.
2Productivity
If a plurality of work machines perform digging in one work area, then the digging efficiency improves, but the control complexity increases
Solution Approach 1:
Multiple work machines are merged into a coordinated system controlled by a single controller that manages all machines simultaneously. The controller integrates the operation of multiple machines, assigning them to different work areas based on ground conditions, and coordinates their movements to avoid conflicts while maximizing overall digging efficiency across the entire work area.
Solution Approach 2:
Each work machine is equipped with sensors that automatically detect ground conditions and transmit this information to the controller. The machines receive automatic work path assignments and parameter adjustments from the controller based on real-time conditions, reducing the need for manual intervention and simplifying the control interface while maintaining efficient multi-machine operation.
3Productivity
If work paths are set with large intervals between machines, then collision risk is reduced, but the undug area increases and efficiency decreases
Solution Approach 1:
The system continuously monitors the positions and work progress of multiple machines in real-time through communication between machines and the controller. Based on this feedback, the controller dynamically adjusts work paths and intervals between machines to maintain optimal spacing that minimizes undug area while preventing collisions. The system responds to changing conditions by reallocating work paths as needed.
Solution Approach 2:
The controller pre-calculates and assigns work paths to multiple machines before they begin digging, taking into account the ground conditions in different work areas and the capabilities of each machine. This preliminary planning ensures that machines are positioned optimally from the start, with intervals that maximize coverage while preventing potential collision zones, thereby improving efficiency without compromising safety.
Data Source
AI summary
A system controls a plurality of work machines including a first work machine and a second work machine. The system includes a communication device configured to wirelessly communicate with the plurality of work machines, and a controller. The controller acquires area data indicative of a position of a work area. The controller determines a first work path to be dug by the first work machine, the first work path extending in a predetermined work direction in the work area. The controller determines a second work path to be dug by the second work machine, the second work path extending in the work direction in the work area and disposed at an interval from the first work path in a lateral direction intersecting the work direction. The controller determines a next first work path and a next second work path so that the interval is decreased.