Terrain-Adjusted Land Mapping for Accurate Machine Guidance
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Solution Overview
Problem
Existing automated guidance systems for agricultural and heavy-equipment machinery in uneven or sloped terrain rely on two-dimensional maps, which fail to accurately account for height and slope, leading to inefficient and inaccurate machine control due to inconsistencies between the map and the actual terrain.
Innovation Solution
A system that uses sensors to capture three-dimensional position data, generates a three-dimensional model path, and projects it onto a two-dimensional land map, adjusting path positions to compensate for terrain features, allowing for terrain-adjusted paths that account for height and slope variations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If two-dimensional maps are used for guidance, then device complexity is reduced, but measurement precision of terrain height and slope deteriorates
Solution Approach 1:
The patent applies dimensionality change by representing three-dimensional terrain information (height and slope) through two-dimensional map adjustments. Instead of using full 3D maps, the invention projects terrain corrections onto the 2D map plane, allowing guidance systems to account for elevation changes and slopes while maintaining map simplicity and avoiding complex 3D data structures.
2Measurement precision
If three-dimensional maps with high precision data are used, then measurement precision of terrain is improved, but device complexity and data processing requirements increase
Solution Approach 1:
The patent extracts only the essential terrain correction information (height and slope adjustments) from complex three-dimensional terrain data and applies it to two-dimensional maps. This extraction approach captures the critical terrain features needed for accurate guidance while discarding unnecessary 3D data complexity, achieving precision without proportional increases in system complexity.
Solution Approach 2:
The invention transforms three-dimensional terrain correction data into two-dimensional map adjustments, allowing precise terrain representation through planar corrections. This dimensionality reduction enables the system to maintain high measurement precision while avoiding the computational burden of processing and storing full 3D terrain models.
3Ease of operation
If two-dimensional maps are used, then ease of operation is improved, but manufacturing precision of guidance paths deteriorates
Solution Approach 1:
The patent reconciles ease of operation with path accuracy by implementing terrain-adjusted two-dimensional maps that incorporate three-dimensional corrections. The system maintains the simplicity of 2D map visualization and operation while integrating height and slope data to calculate accurate guidance paths that compensate for terrain variations, achieving both operational simplicity and manufacturing precision.
Data Source
AI summary
A system and method for generating land maps of a land area. The land maps can include two-dimensional and three-dimensional land maps. The land maps may be efficiently generated based on field data obtained by mobile machines configured to traverse the land area, with the mobile machines associated with one or more sensors. The land maps may be used to accurately and efficiently guide other mobile machines as such mobile machines traverse through or operate within the land area.