RFID Tag Data Compression for Shorter Write Communication
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Solution Overview
Problem
The existing RFID tag communication systems face challenges in shortening communication time as the demand for increased storage capacity leads to longer communication times due to the need to transmit and process larger amounts of data, with existing techniques either not compressing data effectively or not improving transmission times.
Innovation Solution
A tag communication apparatus that compresses at least part of the transmit data before transmission to the RFID tag, using a data compressor and transmitter to reduce data amount and include a storage space information generator to manage multiple data pieces, along with an available space determiner and space shortage information transmitter to handle storage capacity issues, and employs a unique data compression method like bit inversion to optimize bit transmission times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the storage capacity of the RFID tag is increased to store more information, then the information storage capability is improved, but the communication time between the tag communication apparatus and the RFID tag is lengthened
Solution Approach 1:
The patent extracts and separates the data compression function from the RFID tag system by introducing an external data compressor in the tag communication apparatus. This allows the RFID tag to store compressed data without needing to perform compression operations, thereby maintaining short communication time while increasing effective storage capacity through efficient data encoding.
2Loss of time
If data compression is applied to reduce the amount of transmit data, then the communication time is shortened, but the device complexity increases due to the need for compression algorithms
Solution Approach 1:
The patent segments the data compression function from the RFID tag and places it in the tag communication apparatus. This segmentation allows the compression processing to be performed externally, reducing the computational burden and complexity within the RFID tag itself while still achieving the benefit of reduced communication time through transmitted compressed data.
3Reliability
If encryption is applied to enhance data security, then the security is improved, but the communication time is lengthened due to additional processing
Solution Approach 1:
The patent applies preliminary action by performing data compression before transmission and storage. By pre-compressing the data in the tag communication apparatus before it reaches the RFID tag, the system reduces the amount of data that needs to be transmitted and stored, thereby shortening communication time without compromising security, as the compressed data remains protected during transmission and storage.
Data Source
AI summary
A tag communication apparatus conducts wireless communication with an RFID tag through a radio wave. The tag communication apparatus includes a data receiver that receives transmit data to be transmitted to the RFID tag, a data compressor that compresses at least a part of the transmit data obtained by the data receiver, and outputs the compressed data, and a transmitter that transmits the compressed data, which is compressed and output by the data compressor, to the RFID tag.