Ship Return-to-Harbor Notification System Using Dynamic Route Calculation
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Solution Overview
Problem
Existing technologies for calculating return-to-harbor time for ships are not suitable as they do not accurately account for the differing courses from the harbor to the current location and back, particularly in maritime environments where routes may vary significantly.
Innovation Solution
A device and method that includes a user interface and processing circuitry to generate a traveling route upon returning to the home harbor, calculate the required time, and notify the return-to-harbor start time based on planned arrival times, using GPS, direction sensors, and radar systems to provide accurate notifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the travel time is calculated based on the distance of the course returning to the reference location, then the calculation is simple, but the accuracy of return-to-harbor time notification deteriorates because the course from harbor to current location differs from the current location to harbor
Solution Approach 1:
The system dynamically generates a traveling route based on the ship's current position, heading, and planned home route, rather than using a fixed symmetric course. The route is continuously updated as the ship travels, allowing accurate calculation of return time based on actual maritime conditions and varying courses.
Solution Approach 2:
The system uses feedback from GPS position data, direction sensor information, and radar inputs to continuously refine the traveling route calculation. This feedback mechanism ensures the return-to-harbor time notification remains accurate despite changes in maritime conditions and course variations.
2Device complexity
If a fixed return-to-harbor time is notified, then the notification system is simple, but it cannot adapt to changing ship routes and conditions
Solution Approach 1:
The notification system transitions from a static fixed time approach to a dynamic calculated time approach. The system continuously monitors the ship's position, heading, and route changes, automatically updating the return-to-harbor time notification to reflect current conditions and planned trajectory.
Solution Approach 2:
The system changes the parameter used for return-to-harbor time calculation from a fixed value to a dynamically calculated value based on current ship position, heading, and planned route. This allows the notification to adapt to varying maritime conditions and route changes without requiring system redesign.
Data Source
AI summary
A return-to-harbor notifying device is provided, which may include a user interface and processing circuitry. The user interface may receive an information related to a planned time of arrival at a home harbor that is a location to which a ship returns. The processing circuitry may generate a traveling route upon returning to the harbor, calculate a required time for traveling from a current location of the ship to the home harbor based on the traveling route, calculate a return-to-harbor start time of the ship based on the required time and the information related to the planned time of arrival, and notify a content based on the return-to-harbor start time.