NFC Data Exchange Optimization via Status Check
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Solution Overview
Problem
Conventional near field communication systems often perform unnecessary data exchanges with the same communication target, leading to inefficient communication due to lack of data management and status tracking.
Innovation Solution
A storage medium with a communication program that reads identification and status information from a communication target to determine if main data needs to be read or written, optimizing data exchange by checking if the data has already been acquired and updating status information accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data reading and writing is performed every time a communication target comes close, then data exchange is ensured, but communication efficiency deteriorates due to unnecessary redundant operations
Solution Approach 1:
The system performs preliminary actions by storing management information (data presence status and data version information) in advance in the communication target device. Before actual data reading/writing operations, the information processing device checks this pre-stored management information to determine whether data operations are necessary, thereby avoiding redundant operations and improving communication efficiency while reducing time loss.
2Reliability
If data reading and writing is performed every time a communication target comes close, then data is always up-to-date, but power consumption increases due to frequent operations
Solution Approach 1:
The system implements a feedback mechanism where the information processing device reads management information (data presence status and data version information) from the communication target device before performing data operations. Based on this feedback information, the device intelligently determines whether data reading or writing is necessary, thereby avoiding unnecessary operations that consume power while ensuring data freshness only when actually needed.
3Ease of operation
If data reading and writing is performed every time a communication target comes close, then communication is simple and direct, but communication overhead increases due to repeated full data transfers
Solution Approach 1:
The system segments data management into two parts: management information (data presence status and data version information) and actual main data. The management information is stored and checked in the communication target device, while the main data is stored in the information processing device. This segmentation allows the system to perform simple status checks before data transfers, reducing communication overhead and data transfer volume while maintaining ease of operation.
Data Source
AI summary
An example of an information processing apparatus performs near field communication with a communication target. An example of a communication target has stored therein main data to be read, identification information, and status information set in accordance with writing of the main data to the communication target. In accordance with the fact that, as a result of the communication target coming close to the information processing apparatus, the information processing apparatus has become capable of performing near field communication with the communication target, the information processing apparatus reads the identification information and the status information from the communication target. Further, the information processing apparatus determines, on the basis of the read identification information and status information, whether or not it is necessary to read the main data.