Agricultural Vehicle Proxy Positioning with Shared RTK Corrections
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Solution Overview
Problem
Current position determination systems for agricultural and construction vehicles require expensive and complex receivers with RTK accuracy for precise positioning, especially in water management applications like surface grading and irrigation, which increases costs and complexity, and often necessitate separate subscriptions for each vehicle.
Innovation Solution
A system that utilizes a first receiver with advanced RTK accuracy capabilities to determine the position of a second vehicle, allowing for accurate three-dimensional positioning, including vertical positioning, without the need for a second costly receiver or RTK accuracy unlock on the second vehicle, by communicating position correction information between vehicles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each vehicle is equipped with its own RTK-capable receiver and subscription, then positioning accuracy is improved, but system cost and complexity increase
Solution Approach 1:
The patent combines the positioning functions of multiple vehicles into a single RTK receiver system. The first vehicle equipped with the RTK-capable receiver shares its correction information with the second vehicle through inter-vehicle communication, allowing both vehicles to achieve high positioning accuracy without each requiring separate RTK receivers and subscriptions.
Solution Approach 2:
The RTK receiver on the first vehicle serves multiple functions: it provides accurate positioning for itself and simultaneously acts as a correction source for the second vehicle. This multi-functional use of a single receiver reduces overall system complexity and cost while maintaining positioning accuracy for both vehicles.
2Measurement precision
If each vehicle is equipped with its own RTK-capable receiver, then positioning accuracy is improved, but cost increases
Solution Approach 1:
The patent merges the positioning capabilities of two vehicles into a single RTK receiver unit on the first vehicle. By sharing correction information through communication systems, one receiver serves both vehicles, reducing the total number of receivers from two to one while maintaining accurate positioning for both vehicles in water management operations.
3Quantity of substance
If simple receivers are used without RTK accuracy, then cost is reduced, but positioning accuracy deteriorates
Solution Approach 1:
The patent introduces correction information as an intermediary that bridges the gap between simple receivers and RTK accuracy. The first vehicle's RTK receiver generates correction information that is transmitted to the second vehicle, allowing the second vehicle's simpler receiver to achieve RTK-level accuracy without requiring RTK hardware, thus reducing cost while maintaining precision.
4Manufacturing precision
If RTK accuracy is implemented for water management operations, then operational precision is improved, but system complexity increases
Solution Approach 1:
The patent combines the RTK positioning function with the water management control system. The single RTK receiver on the first vehicle provides correction information that enhances the positioning accuracy of both vehicles, enabling precise water management operations like irrigation and drainage without requiring complex RTK systems on each vehicle.
Solution Approach 2:
The system implements feedback through the transmission of correction information from the first vehicle to the second vehicle. The RTK receiver continuously generates correction data that is communicated to the second vehicle, allowing real-time adjustment and maintenance of high positioning accuracy for water management operations without increasing individual vehicle complexity.
Data Source
AI summary
A system for providing a position for an agricultural vehicle. The system includes a first receiver structured to be coupled to a first vehicle, the first receiver configured to receive position correction information from an external source and determine a first position of the first receiver in three dimensions using the position correction information. The system also includes a second receiver structured to be coupled to a second vehicle and configured to determine a second position of the second receiver, wherein the first receiver is configured to determine the first position using the position correction information at a higher level of accuracy than the second receiver is configured to determine the second position. The system also includes one or more processing circuits, each processing circuit including a processor and a memory, the memory having instructions stored thereon that, when executed by the processor, cause the processing circuit to determine a position of the second vehicle in three dimensions, including a vertical position of at least a portion of the second vehicle, using the position correction information received by the first receiver.