Navigation Planning System for Vessel Collision Risk Assessment
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Solution Overview
Problem
Vessel operators face challenges in safely navigating vessels due to the need to avoid collisions with obstacles and adapt to changing ocean conditions and tides, without effective tools to compare and choose between planned and evasion routes based on collision risk and route length.
Innovation Solution
A navigation planning system that acquires planned route, movable body, and obstacle information, calculates collision risks, and evaluates risks to determine when to change from a planned route to an evasion route, ensuring reduced collision risk and flexible route selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a vessel operator establishes an evasion route to avoid collisions with obstacles, then collision safety is improved, but the complexity of navigation decision-making increases due to the need to compare multiple routes and risk assessments
Solution Approach 1:
The system continuously calculates collision risks for both planned and evasion routes using real-time obstacle information and route data, providing feedback to the operator to support informed decision-making about route selection
Solution Approach 2:
The navigation planning system acts as an intermediary between the operator and the complex navigation environment, automatically computing risk assessments and presenting simplified comparisons to reduce decision-making complexity
2Measurement precision
If the system calculates and compares collision risks for multiple routes, then the ability to verify route safety is improved, but the processing time and computational resources increase
Solution Approach 1:
The system pre-calculates and stores route information and collision risk parameters before final decision-making is needed, allowing for faster real-time comparisons and reducing overall processing time while maintaining accuracy
3Adaptability or versatility
If the system provides detailed risk assessment data to the operator, then the flexibility and informality of route selection is improved, but the amount of information processing and data analysis required increases
Solution Approach 1:
The system extracts and presents only the most critical risk assessment information and route comparison data to the operator, filtering out unnecessary details to reduce information processing burden while maintaining sufficient flexibility for informed decisions
Data Source
AI summary
A navigation planning system configured to acquire a planned route for a movable body on a water. Further, movable body information and obstacle information an obstacle located in a surrounding area of the movable body is acquired. Subsequently, an evasion route, different from the planned route is acquired. Further, a collision risk indicating a risk of collision between the movable body and the obstacle is calculated based on the movable body information and obstacle information. Furthermore, a maximum evasion route collision risk when the movable body travels on the evasion route and a maximum planned route collision risk the movable body travels on the planned route are obtained. Finally, the navigation planning system outputs a navigation route change signal indicating that the movable body change the planned route to the evasion route when the maximum evasion route collision risk is less than the maximum planned route collision risk.