Navigation Device Text Location Display
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Solution Overview
Problem
Navigation devices struggle to convey a user's location in a text-readable form, especially in emergency situations where the GPS position is not easily recognizable.
Innovation Solution
A method and navigation device that receive a request for location display, determine the GPS location, compare it to stored map information, and convert it into a text-readable form for display on an integrated input and display device, allowing users to easily identify their position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS position data is displayed in numerical format (latitude/longitude), then the location information is precise, but the user cannot easily recognize or understand their location
Solution Approach 1:
The patent introduces map data as an intermediary between the GPS position data and the user. The system overlays the current GPS position onto a displayed map, allowing users to visually identify their location within the context of familiar geographical features (roads, landmarks, city names) while maintaining the precision of GPS coordinates. This resolves the contradiction by providing both accurate positioning and intuitive recognition.
2Ease of operation
If the navigation device processes and converts GPS data to text-readable form, then the location becomes more understandable, but the device complexity increases
Solution Approach 1:
The patent leverages the existing map display functionality of modern navigation devices to achieve location recognition. Rather than creating a separate text-description system, the invention uses the universal map interface that users already expect and understand. The GPS position data is simply overlaid onto the existing map display, allowing the same display system to serve both navigation guidance and location identification purposes, thereby minimizing additional complexity.
3Measurement precision
If the device stores detailed map information for location comparison, then the location description becomes more accurate, but the memory requirements and data size increase
Solution Approach 1:
The patent extracts only the essential elements needed for location recognition from the full map data set. Rather than requiring complete detailed maps, the system identifies and displays key reference points and features (major roads, landmarks, city boundaries) that are sufficient for users to understand their location. This selective extraction maintains location description accuracy while reducing the quantity of stored map data required.
Data Source
AI summary
A method and device are disclosed for navigation. In at least one embodiment, the method includes receiving a request for display of a location of a navigation device; determining at least one of a last known and a current GPS location of the navigation device; comparing the determined GPS location to stored map information and converting the determined GPS location into a text readable form; and displaying the text readable form of the determined GPS location on an integrated input and display of the navigation device. In at least one embodiment, the navigation device includes a processor to receive a request for display of a location of a navigation device, to determine at least one of a last known and a current GPS location of the navigation device, to compare the determined GPS location to stored map information and to convert the determined GPS location into a text readable form; and an integrated input and display device to display the text readable form of the determined GPS location.