Navigation Apparatus Facility Name Display Control
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Solution Overview
Problem
Conventional navigation apparatuses fail to display facility names and other relevant information reflecting user operations, such as facility searches, especially when multiple tenants occupy the same building, and cannot prioritize tenant names or display them as landmarks during route searches.
Innovation Solution
A navigation apparatus with facility search, displayed character string setting, map drawing, and display means that includes facility search functionality to ensure facility names are displayed on the map image when searched, and adjusts display content and position based on user instructions and scale, highlighting the searched facility and including character strings at right/left turn intersections for route guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional priority-based character display is used, then character data overlap is resolved, but facility names and user operation results are not displayed
Solution Approach 1:
The system performs preliminary actions by setting display flags for character strings before map image display. When facility search is executed, the system proactively sets the display flag for the facility name character string to ensure it is displayed, rather than waiting for overlap conflicts to occur. This preliminary configuration resolves the issue of facility names not being displayed without requiring complex real-time conflict resolution.
Solution Approach 2:
The display control system dynamically adjusts character string display based on user operations. When facility search is executed, the system changes the display state to show facility names; when route search is executed, it shows landmark names. This dynamic adaptation allows the system to display relevant information without complex static priority rules, resolving the contradiction between information completeness and control simplicity.
2Loss of information
If facility names are always displayed, then user operation results are reflected, but regular map display is disrupted
Solution Approach 1:
The system dynamically changes display content based on user operations. In normal state, regular map display shows standard character strings. When facility search is executed, the display flag for facility names is set to display them. When route search is executed, landmark names are displayed. This dynamic switching provides user operation feedback without permanently disrupting regular map display usability.
Solution Approach 2:
The system applies different display qualities to different character strings based on local conditions. Instead of uniformly displaying or hiding all character strings, it selectively sets display flags for specific strings (facility names, landmark names) based on the current user operation context. This localized quality adjustment maintains overall map display usability while providing necessary operation feedback.
3Loss of information
If multiple character strings are displayed at the same position, then information completeness is improved, but character overlap occurs
Solution Approach 1:
The system extracts and separates character strings that would otherwise overlap. When facility search is executed, the facility name character string is extracted and displayed at its designated position with the display flag set. When route search is executed, landmark names are extracted and displayed. This extraction approach ensures information completeness while avoiding overlap by giving each character string its own display position and control flag.
Solution Approach 2:
The system performs preliminary positioning and flag setting for character strings before display. By pre-configuring display flags for facility names and landmark names at their respective positions, the system avoids the need for complex real-time overlap resolution. This preliminary action ensures accurate character positioning and prevents overlap while maintaining information completeness.
Data Source
AI summary
There are provided a navigation apparatus and a navigation method capable of performing a character display reflecting the operation result of a user. The navigation apparatus includes a facility search section that searches for a facility fulfilling a set search condition; a display flag changing section that sets a character string, which is displayed at a position corresponding to the facility searched by the facility search section, as a character string indicating the facility; a map drawing section that draws a map image including the location of the facility searched by the facility search section and the character string set by the display flag changing section; and a display processing section and a display device, which display the map image drawn by the map drawing section.


