Mobile Terminal Directional Data Search Using Orientation
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Solution Overview
Problem
Current mobile terminals do not effectively utilize GPS and geomagnetic sensors to present data with location information to users in an intuitive manner, lacking a method to search and display data based on the device's current location and orientation.
Innovation Solution
A mobile terminal equipped with a current-location information acquisition unit, direction information acquisition unit, storage unit, search unit, and display control unit that acquires and displays data with location information by computing a direction line from the current location and searching for data within a predetermined range based on the device's orientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If mobile terminals store various types of data with location information, then data storage capability is improved, but the ability to intuitively search and present this data to users remains insufficient
Solution Approach 1:
The patent introduces a directional dimension to data search by utilizing the geomagnetic sensor to detect device orientation. Instead of traditional keyword-based search, the system searches for data in the spatial direction the device is pointing, creating a new dimension for data retrieval that makes full use of stored location information.
Solution Approach 2:
The system automatically acquires current location information from GPS and direction information from the geomagnetic sensor without requiring manual user input. The search process is self-initiated based on the device's physical orientation, eliminating the need for users to manually search through stored data.
2Measurement precision
If GPS function and geomagnetic sensor are equipped in mobile terminals, then location and direction detection capability is improved, but effective utilization of these sensors for data presentation remains insufficient
Solution Approach 1:
The patent makes the GPS and geomagnetic sensor serve a dual purpose: not only do they provide location and direction information for navigation, but they also enable intuitive search and presentation of stored data with location information, making these sensors versatile tools for both navigation and data management functions.
Solution Approach 2:
The system pre-stores location information associated with various data items (contact information, image data, etc.) so that when a search is initiated, the data can be immediately retrieved and presented based on the current location and direction, without requiring real-time location lookup for each data item.
3Stability of the object's composition
If data with location information is stored, then data organization capability is improved, but the ability to present relevant data based on current location and orientation remains insufficient
Solution Approach 1:
The system continuously monitors the device's current location and orientation, and uses this feedback to dynamically determine which stored data to present. As the user moves or changes orientation, the presented data automatically updates to reflect the new spatial context, creating a responsive feedback loop between physical movement and data presentation.
Data Source
AI summary
A mobile terminal has a current-location information acquisition unit configured to acquire current-location information indicating a current location of the mobile terminal, a direction information acquisition unit configured to acquire direction information indicating a direction of orientation of the mobile terminal, a storage unit configured to store data added location information, a search unit configured to search for at least one of the data having the location information that is located in the direction from the current location of the mobile terminal and that falls within a predetermined range around the direction based on the current-location information and the direction information, and a display control unit configured to cause the retrieved data to be displayed.


