Boat Shore Arrival Control With Automatic-to-Manual Handover
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Solution Overview
Problem
Existing boat shore arrival systems require high skill and are limited to specific harbors, making smooth shore arrival and trailer loading challenging, especially in unfamiliar environments.
Innovation Solution
A boat equipped with a propulsion device and controller that executes automatic shore arrival control using environment information to navigate to a target position, allowing easy shore arrival in any harbor and facilitating trailer loading, with the ability to transition to manual control when the operator intentionally moves the boat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional shore arrival assistance devices are used, then shore arrival can be assisted in specific harbors, but the system cannot be used in unspecified harbors and requires high operator skill
Solution Approach 1:
The system uses environment information (images, maps, GPS) to automatically recognize shore arrival locations and generate control instructions, making it applicable to any harbor without requiring pre-recorded loci or operator expertise. The controller universally processes environmental data to determine boat positioning and generate navigation instructions.
2Measurement precision
If automatic shore arrival control is continuously executed, then precise positioning is maintained, but operator intention cannot be promptly reflected
Solution Approach 1:
The controller continuously monitors operator input status and automatically terminates control instruction output when the operator inputs a command. This feedback mechanism ensures that automatic control promptly yields to manual intervention while maintaining precise automatic positioning during normal operation.
Data Source
AI summary
A boat includes a boat body, a propulsion device, an operator that operates the propulsion device, and a controller. The propulsion device is disposed in the boat body and generates a propulsion force to move the boat body. The controller executes an automatic shore arrival control to control the propulsion device so as to cause the boat body to move toward a target position. The controller ends the automatic shore arrival control when the operator is positioned in a non-neutral position that differs from a neutral position.