Map Generation System Correcting 3D Data Shifts During Work Machine Swing
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Solution Overview
Problem
In image display systems for work machines, the use of scanning distance measurement sensors can result in measurement position shifts when the work machine swings or moves during a scanning period, leading to degraded work efficiency.
Innovation Solution
A map generation system that includes a measurement data acquisition unit, an operation information acquisition unit, a correction amount calculation unit, and a correction processing unit to correct measurement data shifts by calculating and applying correction amounts based on the work machine's operation information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a scanning distance measurement sensor is used to measure distance to a work target, then distance measurement capability is provided, but measurement position shifts occur when the work machine swings or moves during scanning
Solution Approach 1:
The system obtains operation information representing work machine operations during the scanning period, calculates correction amounts based on this feedback, and applies these corrections to compensate for measurement position shifts. This closed-loop feedback mechanism resolves the contradiction by using the operation information to correct the measurement data, thereby maintaining both measurement precision and reliability even when the work machine moves during scanning.
2Adaptability or versatility
If the work machine swings or moves during scanning period, then operational flexibility is improved, but measurement position shift occurs
Solution Approach 1:
The system obtains operation information that represents operations occurring during the scanning period before final measurement processing. By having this operation information available in advance, the system can calculate and apply correction amounts to compensate for position shifts, thus maintaining measurement precision even when the work machine swings or moves during scanning.
3Measurement precision
If correction processing is applied to measurement data, then measurement position accuracy is improved, but system complexity increases
Solution Approach 1:
The system introduces operation information as an intermediary element that bridges the gap between raw measurement data and corrected results. This operation information serves as a mediator that enables the calculation of correction amounts without requiring complex direct analysis of measurement data alone, thus improving measurement position accuracy while managing system complexity through the use of this intermediate information layer.
Data Source
AI summary
An aspect of the invention is a map generation system including a three-dimensional data acquisition unit configured to acquire three-dimensional data from a scanning distance measurement sensor measuring a distance to a target to be measured, an operation information acquisition unit configured to acquire operation information representing an operation of a work machine occurring in a cycle of update of the three-dimensional data by the scanning distance measurement sensor, a correction amount calculation unit configured to calculate a correction amount of each measurement point of the three-dimensional data based on the operation information, and a correction processing unit configured to apply the correction amount to each measurement point of the three-dimensional data to correct the three-dimensional data.