Terrain Mapping via Machine Steering and Speed Parameters
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Solution Overview
Problem
Existing terrain mapping systems are inefficient and inaccurate due to reliance on GPS receivers, which may not be equipped on all vehicles and can experience outages, leading to incomplete or inaccurate terrain maps.
Innovation Solution
A system that uses a controller to determine machine parameters such as steering and speed to create terrain maps, determining geometry and grade of paths traveled by machines, and generating maps without relying on GPS technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If GPS receivers are used for terrain mapping, then location data can be obtained, but the system becomes dependent on GPS availability and accuracy
Solution Approach 1:
The patent extracts the terrain mapping function from GPS dependency by using machine parameter data (steering, speed, engine RPM) already collected by the machine's own sensors and controllers. This removes the need for external GPS receivers while maintaining mapping capability through alternative data sources that are inherently available on the machine.
Solution Approach 2:
The machine serves its own terrain mapping needs by utilizing its existing operational parameters and onboard sensors. The machine's controller processes its own steering, speed, and performance data to generate terrain maps, eliminating dependence on external GPS systems and making the machine self-sufficient for mapping operations.
2Loss of information
If GPS receivers are equipped on all vehicles for terrain mapping, then complete coverage is achieved, but cost and complexity increase
Solution Approach 1:
The patent creates a universal terrain mapping system where a single machine with onboard sensors can contribute data that benefits the entire fleet. By using multi-functional machine parameters (steering, speed, engine data) that serve both operational control and terrain mapping purposes, the system achieves complete terrain coverage without requiring dedicated GPS equipment on each vehicle.
3Measurement precision
If GPS location data is used for terrain mapping, then position information is obtained, but accuracy is reduced during GPS outages or in poor signal conditions
Solution Approach 1:
The patent replaces the electronic GPS positioning system with a mechanical/physical measurement approach using the machine's own motion parameters. By calculating position and terrain information from steering angles, wheel speed, and engine performance data—physical quantities directly measured by the machine's operational sensors—the system achieves continuous accurate positioning independent of GPS satellite signals.
Data Source
AI summary
A system for mapping terrain using at least one machine traveling along the terrain includes at least one controller. The at least one controller is configured to determine a plurality of machine parameters of the at least one machine as the at least one machine travels along the terrain. The plurality of machine parameters include a steering parameter and a speed of a component of the at least one machine. The at least one controller is also configured to determine, based on the determined machine parameters, a geometry and a grade of at least one path on the terrain along which the at least one machine travels. The at least one controller is further configured to create, based on the determined geometry and grade, a map indicating the at least one path.