Mobile Terminal Map Service Without Pre-stored Data
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Solution Overview
Problem
Existing mobile terminals cannot provide road guidance services without pre-stored map information, limiting their functionality even when they can determine a user's position using GPS.
Innovation Solution
A method and apparatus that enable road guidance by generating a map service in a mobile terminal, which includes determining the current position, recording a moving path, inserting tag icons for multimedia content, and sending a map message with the path and content to another terminal, allowing for interactive map display and content playback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If map information is pre-stored in the mobile terminal, then road guidance service can be provided, but device storage requirements increase and initial setup complexity increases
Solution Approach 1:
The patent applies preliminary action by having the user generate and send map information before the actual road guidance service is needed. The user creates a map by moving the mobile terminal along the desired route, recording position data and attaching multimedia content, then sends this pre-generated map information to the destination terminal. This eliminates the need for pre-storing comprehensive map databases in the terminal.
Solution Approach 2:
The patent uses copying by creating a simplified representation of the map as a sequence of position data points and multimedia content rather than storing complete geographic information systems data. The map is copied as essential path information and key point content, which is then reconstructed at the destination terminal for display and guidance.
2Adaptability or versatility
If comprehensive map information is stored to enable road guidance, then service functionality improves, but device memory and storage capacity requirements increase
Solution Approach 1:
The patent extracts only the essential elements needed for road guidance from complete map information. Instead of storing comprehensive geographic data, the system extracts and stores only the specific path route as position data points and multimedia content at key points along the route. This extracted minimal information is sufficient for providing road guidance functionality.
Solution Approach 2:
The patent applies local quality by providing detailed map information only at specific key points along the route rather than uniformly across all areas. Multimedia content such as photographs and voice messages are attached only at significant locations (key points) along the path, rather than storing continuous detailed information throughout the entire route area.
3Quantity of substance
If map information is not pre-stored, then storage requirements are reduced, but the mobile terminal cannot display position and moving path without map data
Solution Approach 1:
The patent uses communication networks as an intermediary to transfer map information from the user's terminal to the destination terminal. Instead of requiring the destination terminal to have pre-stored map data, the system uses the network to deliver the generated map information (position data and multimedia content) to where it is needed, enabling path display without local storage.
Solution Approach 2:
The system performs preliminary action by having the user generate the complete map information including position data and multimedia content before transmission. This pre-generated information is then sent through the network to the destination terminal, which can display the full path and position information without having stored any map data beforehand.
Data Source
AI summary
An apparatus and method for providing a map service using a global positioning service in a mobile terminal includes determining a current position of the mobile terminal. A moving path of the mobile terminal is recorded. If content for key point marking are generated, a tag icon corresponding to the content is inserted into a point representing the current position of the mobile terminal. A map message includes the moving path, the tag icon, and the content.