Asymmetric Satellite Positioning for Parallel Work Vehicles
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Solution Overview
Problem
Existing parallel travel work systems face a cost vs. accuracy tradeoff in navigation, where high accuracy positioning increases costs but reduces errors, and low accuracy positioning increases errors and makes unmanned travel difficult.
Innovation Solution
Implementing a system where one work vehicle has a high-accuracy satellite positioning system and the other has a lower-accuracy system, with a remote control device calculating and displaying the distance between them to maintain a set range and provide alarms for deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high accuracy satellite positioning systems are mounted on both work vehicles, then positioning accuracy is improved, but cost increases
Solution Approach 1:
The patent applies asymmetry by configuring one work vehicle with a high-accuracy satellite positioning system while the other work vehicle uses a lower-accuracy system. This asymmetric configuration allows the system to achieve sufficient overall positioning accuracy for maintaining separation distance without requiring both vehicles to have expensive high-accuracy systems, thereby reducing total cost while maintaining functional requirements.
2Ease of manufacture
If low accuracy satellite positioning systems are used, then cost is reduced, but positioning error increases and unmanned travel becomes difficult
Solution Approach 1:
The patent uses one work vehicle equipped with a high-accuracy satellite positioning system as an intermediary reference for the other vehicle. The vehicle with high-accuracy positioning serves as a mediator that provides reliable position data, enabling the system to maintain accurate separation distance measurement even when the other vehicle uses a lower-accuracy positioning system, thus allowing unmanned travel to proceed.
3Reliability
If both work vehicles have high accuracy positioning systems, then positioning error is reduced, but device complexity and cost increase
Solution Approach 1:
The patent applies local quality by concentrating high-accuracy positioning capability on only one work vehicle where it is most needed for reference purposes, while the other vehicle uses a standard lower-accuracy system. This localized application of high-accuracy positioning maintains sufficient overall system reliability for maintaining separation distance without the complexity and cost of equipping both vehicles with high-accuracy systems.
Data Source
AI summary
The purpose of the present invention is to enable a parallel work by a first work vehicle and a second work vehicle to be achieved while measuring the locations of the work vehicles utilizing cheaper satellite location measurement systems. A first satellite location measurement system is mounted on one of a first work vehicle and a second work vehicle, a second satellite location measurement system, which has lower accuracy than that of the first satellite location measurement system, is mounted on a remote control device to be carried on the other of the work vehicles, the actual locations of the first work vehicle and the second work vehicle are measured by the first satellite location measurement system and the second satellite location measurement system, and the locations of the first work vehicle and the second work vehicle are displayed on a display device in the remote control device.