Ship Vicinity Display Device for Intuitive Destination Visualization
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Solution Overview
Problem
Existing ship vicinity information display devices struggle to intuitively convey destination information of other ships, as destination codes are difficult to understand, especially for unfamiliar locations, hindering safe navigation.
Innovation Solution
A ship vicinity information display device that includes a display unit, receiver, and processing circuitry to acquire and graphically display the longitude and latitude of a ship's destination, allowing for intuitive representation of positional relationships and estimated courses, using a destination position memory to convert codes into geographical positions and displaying geometric shapes to represent destinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If destination information is displayed as a code (e.g., UN/LOCODE), then the information can be transmitted efficiently through AIS, but the user cannot intuitively understand the destination
Solution Approach 1:
The patent introduces an intermediary conversion process that transforms the AIS destination code into a visual geographic representation. The processing circuitry acts as a mediator that receives the destination code, converts it to coordinates, and displays it as a geometric shape on the radar screen, bridging the gap between efficient code transmission and intuitive visual understanding
Solution Approach 2:
The patent transitions from one-dimensional text/code display to two-dimensional spatial visualization. By representing the destination as a geometric shape positioned at its actual geographic location on the radar display, the system adds a spatial dimension that makes destination understanding immediate and intuitive without sacrificing the efficiency of code-based transmission
2Ease of operation
If destination information is converted to geographical name, then the destination becomes easier to understand to some extent, but it still requires searching and is not intuitive for unfamiliar locations
Solution Approach 1:
The patent moves from text-based geographical names to spatial visualization by displaying the destination as a geometric shape at its actual geographic coordinates on the radar screen. This dimensional transformation eliminates the need for text searching and provides immediate intuitive understanding of the destination's location relative to the own ship and other vessels
Solution Approach 2:
The patent uses visual characteristics of geometric shapes (and potentially color coding) to represent destination information, making it immediately distinguishable and understandable without requiring the user to read or search for text. The visual representation provides instant recognition of the destination's spatial position
3Device complexity
If only destination code is displayed in a window, then the display device maintains simplicity, but the user cannot easily estimate the scheduled course of the other ship
Solution Approach 1:
The patent enhances the display by adding spatial positioning of geometric shapes that represent destinations. This allows users to visually estimate scheduled courses by observing the positions and orientations of the geometric shapes, providing course estimation capability without significantly increasing device complexity
Solution Approach 2:
The processing circuitry pre-calculates and displays the destination positions as geometric shapes in their final locations, allowing users to immediately estimate scheduled courses without requiring additional calculations or data processing. The information is prepared and presented in advance in a usable visual format
Data Source
AI summary
A ship vicinity information display device is provided, which is capable of displaying a position etc. of a destination of another ship based on information of the destination obtained from the other ship, in a mode which is intuitively easy to understand. A radar indicator may include a display unit, an AIS interface, and processing circuitry. The display unit may be capable of displaying an image of a situation in the vicinity of one ship. The AIS interface may receive the information of the destination of the other ship. The processing circuitry may acquire a longitude and latitude of the destination based on the destination information of the other ship and graphically display at least one of the position of the destination of the other ship and a direction of the destination from the other ship (other-ship destination symbol), on the display unit.