Fishing-Mode Trim Tab Control to Prevent Line Entanglement
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Solution Overview
Problem
In marine vessels, the automatic trim tab mode can cause trim tabs to be lowered during fishing, potentially entangling fishing lines with the vessel's posture control tabs, requiring crew members to carefully manage their position to avoid entanglement, which complicates fishing operations.
Innovation Solution
A posture control system that includes a controller to detect when the vessel is in fishing mode and automatically raises the posture control tab to a predetermined position, preventing entanglement with fishing lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the automatic trim tab mode is used to control the posture of the hull, then the posture control is automated and easier to operate, but the trim tabs may be lowered even when a crew member is fishing, causing fishing lines to be entangled with the trim tabs
Solution Approach 1:
The controller determines in advance whether the marine vessel is in fishing mode before automatically controlling the trim tabs. When fishing mode is detected, the controller prevents the trim tabs from being lowered or raises them to a predetermined position, proactively avoiding the entanglement issue before it occurs
Solution Approach 2:
The controller acts as an intermediary between the automatic posture control system and the trim tabs. It receives input from the fishing mode determination and mediates the control signals to the trim tabs, preventing conflicting actions that would cause entanglement while maintaining automated posture control
2Object-affected harmful factors
If the crew member takes a position to avoid fishing line drift toward the stern, then fishing line entanglement is prevented, but the ease of fishing operation is reduced
Solution Approach 1:
The posture control system automatically adjusts the trim tabs based on fishing mode detection without requiring crew member intervention. The system serves itself by autonomously preventing entanglement through automated trim tab positioning, freeing the crew member from the need to manually manage their position
Data Source
AI summary
A posture control system for a hull, and a marine vessel including the posture control system, allows crew members to fish more comfortably and includes a posture control tab attached to a stern of the hull to control a posture of the hull, a driver to drive the posture control tab, and a controller to control the driver. When it is determined that the hull has changed to a fishing mode, the controller causes the driver to raise the posture control tab to a predetermined position.