Watercraft Position Correction for GPS Location Mismatch
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Solution Overview
Problem
Existing watercraft control systems face challenges in accurately determining the relative locations of a watercraft and a communication device, leading to inappropriate movement of the watercraft due to significant location errors.
Innovation Solution
A watercraft control system that includes a watercraft and a communication device, equipped with location detection units and communication units. The system calculates the difference between the detected locations of the watercraft and the communication device and uses this information to correct the location of the communication device, ensuring accurate relative positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If GPS is used to detect the location of the watercraft and the user device, then the location detection is simple and low-cost, but the detected locations include significant errors and are not identical even when the locations should be identical
Solution Approach 1:
The patent introduces a difference calculation unit as an intermediary component that calculates the positional difference between the watercraft and communication device. This mediator processes the GPS location data from both devices and quantifies their discrepancy, enabling the system to account for and correct the inherent GPS errors rather than directly using the raw GPS coordinates for control decisions
Solution Approach 2:
The system implements feedback by using the calculated positional difference to correct the control target location. The difference calculation unit continuously monitors the discrepancy between the two GPS readings, and this feedback information is used to adjust the watercraft's automatic maneuvering target, compensating for the GPS errors and improving positioning accuracy
Data Source
AI summary
A watercraft control system includes a watercraft and a communication device. The communication device includes a communication unit configured to transmit information indicating a location of the communication device to the watercraft. The watercraft includes a communication unit configured to receive the information indicating the location of the communication device and a difference calculation unit configured to calculate a difference between the location of the communication device and a location of the watercraft.