Lid State Detection for Small Planing Watercraft Storage
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Solution Overview
Problem
Small planing watercrafts face issues with water ingress and object fall from storage boxes due to open lids during operation, which can disrupt travel and make retrieval difficult.
Innovation Solution
Incorporating an opening and closing sensor to detect the state of the lid and outputting a signal when open, allowing for notification to the operator and switching to a travel mode that suppresses output to prevent water ingress and object fall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the lid of the storage box is left open during operation, then the operator can easily access the storage box, but water ingress and object fall occur
Solution Approach 1:
The system performs preliminary detection of the lid state using the opening/closing sensor before travel begins. The processing circuitry determines whether the lid is open in advance and prepares appropriate responses (notification or travel mode adjustment) to prevent water ingress and object fall before they occur
Solution Approach 2:
The opening/closing sensor provides continuous feedback about the lid state to the processing circuitry. This feedback loop enables the system to monitor the lid position and trigger appropriate actions (notification to operator or automatic travel mode adjustment) when the lid is detected to be open
2Reliability
If a sensor and processing circuitry are added to detect lid state, then water ingress and object fall are prevented, but device complexity increases
Solution Approach 1:
The processing circuitry serves multiple functions: it processes sensor signals to detect lid state, determines whether the lid is open, triggers notifications to the operator, and adjusts travel modes. By consolidating these functions into a single control unit, the patent minimizes the number of separate components needed while achieving reliable prevention of water ingress and object fall
Data Source
AI summary
A small planing watercraft includes: a body including a storage box and a lid, the storage box including an opening, the lid releasably closing the opening; an opening and closing sensor detecting opening and closing of the lid; and processing circuitry determining whether the lid is open based on a result of detection of the opening and closing sensor, and, when determining that the lid is open, outputting a signal indicating that the lid is open.