Work Machine Control System for Topographical Data Accuracy
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Solution Overview
Problem
In work machines, accurately performing automatic control using current topographical data is challenging due to variations in data accuracy transmitted from management devices.
Innovation Solution
A work machine control system that acquires multiple sets of topographical data, sets high- and low-accuracy data, and calculates differences to generate revision data, improving data accuracy through parameter information related to the site's topography.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If current topographical data is transmitted from an external server to a work machine, then the work machine can perform automatic control, but the accuracy of automatic control deteriorates due to variations in data accuracy
Solution Approach 1:
The patent changes the parameter of topographical data by acquiring multiple datasets with different accuracy levels and synthesizing them. The control device selects and combines high-accuracy and low-accuracy data based on their respective strengths, transforming the data quality parameters to achieve overall high accuracy while maintaining automation.
Solution Approach 2:
The patent creates a composite topographical data structure by integrating multiple data sources. Similar to composite materials, it combines high-accuracy data (from work machine sensors) and low-accuracy data (from external servers) into a unified dataset that leverages the advantages of both sources.
2Measurement precision
If multiple pieces of current topographical data are acquired and processed, then data accuracy can be estimated and improved, but the computational complexity and processing time increase
Solution Approach 1:
The patent segments the topographical data into different accuracy levels (high-accuracy and low-accuracy data). This segmentation allows the system to process different data types using appropriate methods, reducing overall computational complexity while maintaining high accuracy in the final synthesized data.
Solution Approach 2:
The patent applies partial processing by selectively correcting only the necessary portions of low-accuracy data using high-accuracy data. Instead of completely reprocessing all data, it performs targeted corrections where needed, reducing computational burden while achieving the desired accuracy improvement.
Data Source
AI summary
A work machine control system includes: an acquisition unit configured to acquire a plurality of pieces of current topographical data of a work site where a work machine including a work unit performs work; a setting unit configured to set predetermined first current topographical data and second current topographical data from the plurality of pieces of current topographical data acquired by the acquisition unit; and an arithmetic unit configured to calculate a difference between the first current topographical data and the second current topographical data, and obtain revision data to revise the first current topographical data based on the difference and parameter information related to the current topography of the work site.