Marine Power Supply Notification for Battery Switch Off-State
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Solution Overview
Problem
Existing marine power supply systems fail to prevent the unaware travel of marine vessels when battery switches are in an off-state, despite power being supplied to propulsion units with engines and electric motors.
Innovation Solution
A marine power supply system with a battery switch and a notifier that provides visual notifications when the battery switch is in the off-state, along with a controller to manage the notification and a hybrid system that switches between engine and electric motor driving states, reducing complexity and ensuring awareness of the off-state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a battery switch is provided to manually switch between on-state and off-state to prevent battery discharge, then battery discharge is reduced or prevented, but the user may not be aware that the battery switch is in off-state when power is supplied to the propulsion device
Solution Approach 1:
The system provides feedback to the user about the battery switch state through a notification device. When the battery switch is in the off-state, the notification device activates to inform the user, ensuring they are aware of the switch state even when power is being supplied to the propulsion device from other sources.
Solution Approach 2:
The notification device acts as an intermediary between the battery switch and the user. It translates the internal switch state into visible or audible notifications, bridging the gap between the battery switch mechanism and user awareness.
2Duration of action of stationary object
If the battery switch is in off-state to prevent discharge, then battery longevity is improved, but the system cannot supply power to the electric motor when needed
Solution Approach 1:
The system dynamically manages power supply by allowing the battery switch to remain in off-state for battery preservation while enabling power supply to the propulsion device through alternative paths or notifications that guide proper switching, adapting to different operational scenarios.
Solution Approach 2:
The notification device provides preliminary warning to the user about the battery switch state before power supply issues occur, allowing the user to take corrective action (switching the battery on) before the system fails to operate properly.
3Loss of information
If a notification device is added to alert users of the battery switch state, then user awareness is improved, but system complexity increases
Solution Approach 1:
The notification device is designed to serve multiple functions: it not only notifies users of the battery switch state but can also integrate with the existing propulsion control system, serving as part of the overall system monitoring and control interface, thereby reducing the net increase in complexity.
Solution Approach 2:
The notification device automatically detects and responds to the battery switch state without requiring additional user intervention or complex control logic, making the system self-monitoring and reducing the burden on the user while adding minimal complexity.
Data Source
AI summary
A marine power supply system includes a first battery to supply power to an electric motor, a battery switch to be manually switched between an on-state in which the first battery is used and an off-state in which the first battery is not used, and a notifier to provide a notification indicating that the battery switch is in the off-state when the battery switch is in the off-state.