Mine Work Machine Management Apparatus for Rut Prevention
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Solution Overview
Problem
In unmanned vehicle traveling systems used in mines, the generation of ruts in transportation tracks and work places leads to productivity deterioration and increased costs due to frequent ground leveling requirements.
Innovation Solution
A work machine management apparatus that sets switchback points and work points, generates target travel tracks, and selects optimal travel tracks to minimize rut formation by varying the route of unmanned dump trucks, thereby reducing continuous travel on the same paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If multiple work machines travel along the same target travel track, then the work machine can operate autonomously following a fixed route, but ruts are generated in the transportation track or work place
Solution Approach 1:
The system dynamically adjusts the target travel track for each work machine based on machine ID, switching between multiple alternative tracks (first target travel track, second target travel track, etc.) to distribute traffic and prevent rut formation while maintaining autonomous operation
Solution Approach 2:
The transportation track or work place is divided into multiple alternative routes (first target travel track, second target travel track, third target travel track), allowing work machines to be segmented into different groups that follow different paths, thereby reducing concentrated wear on any single path
2Reliability
If ground leveling work is performed to address deep ruts, then the rut problem is temporarily resolved, but productivity deteriorates and costs increase
Solution Approach 1:
The system proactively prevents rut formation by dynamically assigning different target travel tracks to work machines before ruts become deep enough to require leveling operations, thereby maintaining reliable traveling conditions without interrupting productivity for ground maintenance
Data Source
AI summary
A work machine management apparatus includes: a switchback point setting unit configured to set at least one switchback point of a work machine in a work place of a mine; a work point setting unit configured to set a plurality of work points of the work machine; a travel track generating unit configured to generate, based on a position of each of the plurality of work points and a position of the at least one switchback point in a loading place, a plurality of target travel tracks along which the work machine travels in the work place; and a travel track selecting unit configured to select, among the plurality of target travel tracks, a target travel track along which the work machine travels in the work place.