Marine Vessel Heading Control via Joystick Incremental Adjustment
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Solution Overview
Problem
Current marine vessel propulsion and steering control systems lack efficient automatic heading maintenance capabilities, requiring manual adjustments and complex operations for precise directional control.
Innovation Solution
A propulsion and steering control system incorporating a joystick device with a rotatable handle that allows operators to select and adjust the heading of a marine vessel by predefined increments, with a control unit that automatically maintains the selected heading, enabling intuitive and precise directional control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustments are used for directional control, then the system structure remains simple, but the operator workload increases and navigation accuracy decreases
Solution Approach 1:
The control system automatically maintains the selected heading without requiring continuous manual adjustments. The system serves itself by using sensors to detect actual heading and automatically adjusting the marine drive to maintain the desired heading, eliminating the need for constant operator intervention.
Solution Approach 2:
The system incorporates feedback mechanisms where sensors continuously monitor the actual heading of the marine vessel and compare it with the selected heading. Based on this feedback, the control unit automatically adjusts the marine drive to maintain the desired heading, improving navigation accuracy without increasing operator workload.
2Measurement precision
If automatic heading maintenance is implemented, then navigation accuracy improves, but the control system complexity increases
Solution Approach 1:
The system uses sensors to continuously detect the actual heading and provides feedback to the control unit. The control unit processes this information and automatically adjusts the marine drive to maintain the selected heading, achieving high navigation accuracy through closed-loop control.
Solution Approach 2:
The system replaces manual mechanical adjustments with an automated control system that uses electronic sensors and control units to maintain heading. This substitution of mechanical manual control with electronic automation improves precision while managing system complexity through integrated control architecture.
3Productivity
If manual steering operations are used, then the system remains simple, but the time required for directional adjustments increases
Solution Approach 1:
The control system automatically detects heading deviations and makes adjustments without waiting for manual operator input. The system serves itself by continuously monitoring and self-correcting the heading, significantly reducing response time for directional adjustments.
Solution Approach 2:
The system maintains continuous monitoring and adjustment of the heading through automated control. Sensors continuously detect heading information and the control unit continuously adjusts the marine drive, ensuring uninterrupted and timely response to any heading deviations.
Data Source
AI summary
A propulsion and steering control system for a marine vessel has a joystick device operable to provide control commands, the joystick device having a handle extending on an axis. The control system also has a control unit that receives control commands from the joystick device and correspondingly controls at least one marine drive. The joystick device and the control unit operate in a Heading mode such that the control unit controls the marine drive to automatically maintain the selected heading of the marine vessel. Rotation of the handle about the axis adjusts the selected heading by a predefined increment.