Waypoint-Based Display Switching for Ship Navigation
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Solution Overview
Problem
Current navigation systems for ships require manual adjustments of display settings, such as orientation and symbol visibility, which can divert attention from ship operation and increase the risk of navigation errors due to the complexity of changing settings during varying navigational conditions.
Innovation Solution
A navigation information device that automatically switches display settings based on pre-registered settings corresponding to specific waypoints, including changes in orientation, scale, and symbol visibility, using a position acquisition unit and display processing unit to optimize the display according to the ship's position relative to the waypoint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual adjustment of display settings is implemented, then display customization is achieved, but operator attention is diverted from ship operation
Solution Approach 1:
Display settings for each waypoint are pre-configured and stored in the system. When the ship approaches a waypoint, the system automatically retrieves and applies the corresponding pre-set display parameters, eliminating the need for manual adjustment during navigation and keeping the operator's attention focused on ship operation.
Solution Approach 2:
The navigation system automatically monitors the ship's position, detects when a waypoint is approached, and autonomously switches display settings without requiring operator intervention. The system serves itself by managing display configuration based on real-time positional data and pre-stored waypoint information.
2Loss of information
If multiple display settings are available, then navigational information completeness is improved, but device complexity increases
Solution Approach 1:
Display settings are segmented into distinct packages for different waypoints, with each package containing a complete set of parameters (orientation, scale, symbol visibility). This segmentation allows the system to manage complexity by treating each waypoint's display configuration as an independent, pre-defined unit rather than individual adjustable parameters.
Solution Approach 2:
The system manages multiple display parameters (orientation, scale, symbol visibility) by changing them as a coordinated set when switching between waypoints. Each waypoint has a predefined parameter combination that is applied together, simplifying the management of multiple parameters through bundled configuration changes rather than individual adjustments.
3Productivity
If automatic switching of display settings is implemented, then navigation efficiency is improved, but system complexity increases
Solution Approach 1:
The system continuously monitors the ship's current position and compares it with stored waypoint positions. When the ship approaches a waypoint (based on pre-set distance criteria), the system automatically triggers the corresponding display setting switch. This feedback mechanism enables automatic adaptation without complex decision-making logic.
Solution Approach 2:
The system uses the ship's position data as an intermediary to trigger automatic display setting changes. Rather than directly complex decision-making, the simple positional comparison between current location and waypoint locations serves as the triggering condition, simplifying the automation logic while maintaining efficiency.
Data Source
AI summary
A navigation information device is provided with a position acquisition unit for acquiring a position information of its own ship, a memory for storing display settings corresponding to a waypoint that is a via point on a planned route, and a display processing unit for performing generation processing for generating a screen in which the position information is superimposed on a chart, and performing change processing for changing display settings to display settings corresponding to the waypoint based on a positional relationship between the position information and the waypoint.