Transmitter Extraction for Portable Device Positioning
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Solution Overview
Problem
Portable devices face limitations in processing efficiency and communication volume due to the large number of transmitters they need to store, which restricts the number of transmitters they can handle effectively, especially in systems like iBeacon where the number of beacon transmitters is limited.
Innovation Solution
An information processing device that extracts and transmits a predetermined number of transmitters based on their positional information, allowing the portable device to determine if received transmitter information matches those in the list, thereby reducing the number of transmitters stored and improving processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the portable device stores a large number of transmitter information, then the device can handle more transmitters, but the processing efficiency deteriorates and communication volume increases
Solution Approach 1:
The patent divides the complete list of transmitter information into multiple segments based on geographical area. The portable device stores only the transmitter information relevant to its current location (a segment of the full list) rather than the complete list, thereby reducing the number of transmitters processed while maintaining the ability to handle transmitters in different areas through area-based segmentation.
Solution Approach 2:
The patent applies local quality by storing transmitter information selectively based on the portable device's current geographical area. Instead of uniformly storing all transmitter information, the system stores only transmitters located in the current area, optimizing the balance between the number of transmitters handled and processing efficiency for the local context.
2Adaptability or versatility
If the portable device stores a large number of transmitter information, then the device can handle more transmitters, but the communication volume with the server increases
Solution Approach 1:
The patent segments transmitter information by geographical area and communicates only the relevant segment to the portable device based on its current location. This reduces the communication volume between the server and portable device compared to transmitting the complete transmitter list, while still enabling the device to handle transmitters across multiple areas.
Solution Approach 2:
The system performs preliminary classification of transmitter information by geographical area before communication with the portable device. This preliminary organization allows the server to transmit only the necessary portion of data based on the device's location, reducing unnecessary communication volume while maintaining comprehensive coverage capability.
3Productivity
If the number of transmitters stored in the portable device is limited, then processing efficiency improves, but the number of transmitters that can be handled is limited
Solution Approach 1:
The patent implements a dynamic approach where the portable device updates its stored transmitter list based on changes in geographical location. The device dynamically adjusts which transmitter information to store and process according to its current area, enabling efficient processing of a manageable number of transmitters while maintaining the capability to handle a larger total number of transmitters across different areas.
Solution Approach 2:
The system segments the complete transmitter database into area-specific segments and dynamically loads only the relevant segment based on the portable device's current location. This allows the device to maintain high processing efficiency by working with a limited, location-relevant subset of transmitters while still having access to the complete set of transmitters across all areas when needed.
Data Source
AI summary
An information processing device includes a processor configured to: receive first positional information related to a position of a portable device from the portable device; extract transmitters located within a certain area including a first positional coordinate, which is a positional coordinate of the portable device based on the first positional information, from among registered transmitters, calculate respective distances between transmitters within the certain area and the portable device, and extract a predetermined number or less of transmitters based on the calculated distances from among the transmitters within the certain area; and transmit first identification information of the predetermined number or less of transmitters, which allows the portable device to determine whether the first identification information includes second identification information indicating a transmitter transmitted from the transmitter in and to perform a particular process when the first identification information includes the second identification information, to the portable device.