Mine Route Mesh Classification for Productivity Decline Detection
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Solution Overview
Problem
Existing mine management systems fail to accurately account for GPS sensor errors and travel path deviations, leading to misclassification of routes and reduced frequency of productivity index computation, and do not directly link productivity with management indexes, making it difficult to maintain and improve mine productivity.
Innovation Solution
A mine management system that utilizes a processing device to generate mesh information from positional and working data of mine vehicles, classifying travel cycles, computing productivity indexes, and detecting declines by comparing these indexes with stored reference values, outputting results to a display terminal for proactive management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If GPS sensor data is used to specify mine vehicle positions and classify routes, then route classification can be performed, but GPS sensor errors and travel path deviations cause misclassification of routes leading to inaccurate management indexes
Solution Approach 1:
The patent segments the travel path into multiple mesh units based on GPS coordinates, where each mesh represents a small geographic area. By comparing the sequence of mesh units traversed by the vehicle with pre-stored route mesh sequences, the system achieves accurate route classification even when GPS positions have errors or the vehicle deviates slightly from the path. This segmentation approach transforms continuous position data into discrete, comparable units that are more robust to measurement errors.
2Measurement precision
If management indexes are computed only in zones with straight paths, small gradients, and no intersections, then computation accuracy is improved, but the frequency of index computation is reduced due to limited eligible zones
Solution Approach 1:
The patent shifts from computing indexes at specific location zones to computing indexes along the entire route by comparing the actual travel cycle with the reference route. This dimensional transformation allows productivity indexes to be calculated for complete travel cycles regardless of whether the path contains straight sections, gradients, or intersections, thereby increasing computation frequency while maintaining accuracy through the mesh-based route comparison method.
3Device complexity
If conventional route classification methods are used that do not account for GPS errors, then system complexity is reduced, but productivity management accuracy deteriorates making it difficult to maintain and improve mine productivity
Solution Approach 1:
The patent introduces mesh units as an intermediary between GPS position data and route classification. Instead of directly comparing GPS coordinates with route definitions, the system converts positions into mesh unit sequences, which serve as a buffer that absorbs GPS errors and path deviations. This intermediary layer maintains relatively simple system architecture while dramatically improving productivity management accuracy through robust route identification.
Data Source
AI summary
An object of the invention of the present application is to provide a mine management system capable of accurately maintaining and managing the productivity of a mine. To achieve the object, a processing device is configured to generate mesh information of travel cycles in which mine vehicles move from a location in which earth is dumped to a location where the mine vehicles are loaded with a load and then move again to the earth removing location, on the basis of positional information of the mine vehicles, compare the mesh information of the travel cycles with mesh information of routes stored in a storage device to classify the travel cycles to any one of the routes, compute productivity indexes of the travel cycles on the basis of working information of the mine vehicles, compare the productivity indexes of the travel cycles with a productivity reference value of the one of the routes to detect a productivity decline of the one of the routes, and output the detected productivity decline to a display terminal device.