Marker-Guided Berthing Point Cloud Search for Accurate Ship Docking
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Solution Overview
Problem
Existing berthing support systems for ships struggle to calculate parameters such as distance, speed, and angle with high accuracy, which is crucial for safe and smooth berthing.
Innovation Solution
An information processing device that acquires measurement data from a ship's measuring device, determines the position of markers at the berthing place, and sets a search range for a point cloud of the berthing place's edge portion based on the marker positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional berthing support systems are used, then the system can perform basic berthing support functions, but the calculation accuracy of parameters such as distance, speed, and angle is insufficient
Solution Approach 1:
The patent segments the berthing place into multiple regions by setting different search ranges based on marker positions. The edge portion search range is specifically defined relative to marker locations, dividing the measurement area into distinct zones with different processing requirements. This segmentation enables precise parameter calculation by focusing computational resources on relevant areas rather than processing the entire berthing zone uniformly.
2Reliability
If the search range for edge portion point cloud is expanded to improve measurement coverage, then more data can be collected, but the processing time and computational load increase
Solution Approach 1:
The patent applies local quality by setting different search ranges for different regions. The edge portion search range is specifically configured based on marker positions, creating a localized search area that balances data collection needs with processing efficiency. This localized approach ensures reliable measurements in critical areas while avoiding unnecessary processing in less important regions, thereby reducing overall processing time without compromising measurement reliability.
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 precise calculation of berthing parameters, ensuring safe and efficient ship berthing by accurately determining the ship's position and orientation relative to the berthing place.
Implementation Method 1
measurement data generated by a measuring device provided on a ship
Implementation Method 2
the light irradiated from the lidar and then reflected by the object around the berthing position
Data Source
AI summary
The information processing device comprises an acquisition means, a marker position acquisition means and a search range setting means. The acquisition means acquires measurement data generated by a measuring device provided on a ship. The marker position acquisition means acquires a position of at least one marker provided to a berthing place, based on the measurement data. The search range setting means sets a search range of a point cloud of an edge portion of the berthing place, based on the position of the at least one marker.