Autonomous Steering Accuracy Thresholds for Variable Work Types
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Solution Overview
Problem
Conventional autonomous steering systems face inefficiencies due to a uniformly set threshold for positional accuracy, leading to inappropriate setting of reference routes or inability to start autonomous traveling when required accuracy varies by work type, thereby decreasing work efficiency.
Innovation Solution
An autonomous steering method and system that adjusts the allowable range for positional accuracy based on user operations and work information, allowing for dynamic setting of reference routes and enabling autonomous steering when accuracy is within specified limits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a uniform threshold value for positional accuracy is set, then the system is simple to operate, but work efficiency decreases when accuracy requirements vary by work type
Solution Approach 1:
The threshold value for positional accuracy is changed from a static uniform value to a dynamic value that automatically adjusts based on the type of work being performed. The system dynamically selects appropriate threshold values from a plurality of predetermined thresholds corresponding to different work types, enabling the threshold to adapt to varying accuracy requirements without manual intervention.
Solution Approach 2:
The system changes the parameter of positional accuracy threshold based on work type. By associating different threshold values with different work types (e.g., high-precision planting vs. low-precision harvesting), the system optimizes the positional accuracy requirement to match the actual needs of each work operation, improving work efficiency.
2Measurement precision
If a high threshold value for positional accuracy is set, then positioning precision is improved, but autonomous traveling cannot be started when accuracy is insufficient
Solution Approach 1:
The system adjusts the positional accuracy threshold parameter according to different work types. For work types requiring high precision (e.g., planting), a higher threshold is applied, while for work types tolerant of lower precision (e.g., harvesting), a lower threshold is used. This flexible parameter adjustment prevents unnecessary restrictions on autonomous traveling while maintaining required precision standards.
3Productivity
If a low threshold value for positional accuracy is set, then autonomous traveling can be started more easily, but positioning precision is insufficient for high-precision work
Solution Approach 1:
The system dynamically adjusts the positional accuracy threshold based on the specific work type being performed. When high-precision work is detected, the system automatically raises the threshold requirement to ensure adequate positioning accuracy. When performing work with lower precision requirements, the system lowers the threshold to enable autonomous traveling even with reduced positioning accuracy.
Data Source
AI summary
A positioning control unit performs positioning of a position of a work machine. A vehicle control device causes the work machine to execute autonomous steering on the basis of position information indicating the position of the work machine, for which the positioning is performed. A restriction processing unit permits predetermined processing related to the autonomous steering when positional accuracy of the positioning is within an allowable range. A setting processing unit sets the allowable range on the basis of a user operation or work information in the work machine.