Marine Vessel Trailer GNSS Positioning for Accurate Relative Alignment
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Solution Overview
Problem
Existing position locating systems for marine vessels and trailers lack accuracy in determining relative position information, particularly due to limited specifications on cameras used in previous techniques.
Innovation Solution
A position locating system utilizing GNSS receivers on both the marine vessel and trailer, with a controller to register and generate correction information based on positioning signals from satellites, allowing for precise determination of relative position information between the two.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a camera such as a stereo camera, an infrared camera, or a TOF camera is disposed on the hull to obtain distance and direction information, then position information can be obtained, but the specifications mounted on the camera are limited and measurement precision is insufficient
Solution Approach 1:
The patent replaces the optical/mechanical camera-based positioning system with an electromagnetic wave-based GNSS receiving system. Instead of using cameras (stereo, infrared, or TOF) to capture images and calculate positions, the invention uses GNSS receivers to directly receive positioning signals from satellites, obtaining position information through electromagnetic wave signal processing. This substitution resolves the limitation of camera specifications by using a different physical principle that provides superior measurement precision for position information.
2Reliability
If transmitters are disposed on the trailer and a receiving unit on the hull to obtain distance and direction, then position information can be obtained, but the system complexity increases and reliability is reduced compared to GNSS-based solutions
Solution Approach 1:
The patent applies universality by using GNSS receivers that can simultaneously provide both position information and direction information through signal processing. The same GNSS receiving system serves multiple functions: determining distance between trailer and hull, calculating relative directions, and providing location data for attachment/detachment operations. This multi-functionality reduces system complexity compared to separate transmitter-receiver configurations while improving reliability through a proven satellite-based positioning system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables high-accuracy determination of relative position information between marine vessels and trailers, improving the efficiency of detachment and attachment processes.
Implementation Method 1
a first GNSS receiving unit located on a trailer and configured or programmed to receive a positioning signal from a positioning satellite; a second GNSS receiving unit located on a marine vessel and configured or programmed to receive the positioning signal from the positioning satellite
Data Source
AI summary
A position locating system to determine relative position information between a marine vessel and a trailer includes a first GNSS receiver located on one of a marine vessel and a trailer to receive a positioning signal from a positioning satellite, a second GNSS receiver located on the other of the marine vessel and the trailer to receive the positioning signal from the positioning satellite, a registering unit to register a current position of the trailer based on the positioning signal received by the first GNSS receiver when the trailer is stationary, a direction obtaining unit to obtain a direction of the marine vessel, a generating unit to generate correction information in real time based on the current position and the positioning signal received from the positioning satellite by the first GNSS receiver, and a position locator to determine relative position information between the marine vessel and the trailer.