Connection Unit for Noise-Resistant RFID Terminal Interface
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Solution Overview
Problem
Existing systems for reading data from various information media using a modular sled face issues with noise interference and require frequent detachment and attachment of reading units, which can damage the mobile terminal and are cumbersome to use.
Innovation Solution
A connection unit that securely attaches to the mobile terminal and reading unit for electrical connection, allowing for easy replacement of reading units without direct attachment to the terminal, reducing noise interference and minimizing terminal damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless communication is used between the modular sled and reading unit, then ease of operation is improved, but reliability deteriorates due to noise interference in weak radio wave environments
Solution Approach 1:
The patent introduces a connection unit as an intermediary device that provides both wireless communication capabilities and wired connection interfaces. This mediator allows the system to switch between wireless mode (for ease of operation) and wired mode (for reliability in noisy environments), resolving the contradiction by providing both communication methods rather than choosing one exclusively
Solution Approach 2:
The system dynamically adapts its communication mode based on environmental conditions. The reading unit can switch between wireless communication (when radio waves are strong) and wired connection through the connection unit (when radio waves are weak or noise is high), making the system flexible and responsive to changing conditions rather than static
2Adaptability or versatility
If reading units are directly attached to and detached from the mobile terminal for replacement, then adaptability is improved, but the mobile terminal is damaged due to frequent attachment and detachment operations
Solution Approach 1:
The patent segments the system into three distinct components: the mobile terminal, the connection unit, and the reading unit. The connection unit serves as a separate intermediary that the reading unit attaches to, rather than attaching directly to the mobile terminal. This segmentation protects the mobile terminal from wear and damage while maintaining the ability to replace reading units for different adaptability needs
Solution Approach 2:
The connection unit acts as a mediator between the reading unit and mobile terminal. It absorbs the mechanical stress and wear from frequent attachment and detachment operations, protecting the mobile terminal's terminal part. The reading unit attaches to and detaches from this intermediary rather than the terminal itself, reducing damage risk
3Adaptability or versatility
If multiple types of modular sleds are prepared for different reading units, then adaptability is improved, but device complexity increases
Solution Approach 1:
The connection unit is designed with universal compatibility to work with multiple types of reading units. Rather than creating specialized sleds for each reading unit type, this single multi-functional connection unit can interface with various reading units, reducing the number of components needed while maintaining adaptability across different information media types
Data Source
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AI summary
Provided is a connection unit capable of reducing influences from noise and minimizing the damage of a mobile terminal during the replacement of a reading unit. An information-processing device 1 includes a smartphone 3 having a connector 13, an RFID unit 5 to read data from a RF tag 71 and having a projecting electrode 47, and a connection unit 7 intervening between the smartphone 3 and the RFID unit 5. The connection unit 7 includes: a main body 23 to be attached to the smartphone 3, the RFID unit 5 being attached/detached to/from the main body 23 attached to the smartphone 3; a connector 25 disposed at the main body 23 to come in contact with the connector 13 of the smartphone 3 for electrical connection with the smartphone 3; a pattern electrode 27 disposed at the main body 23 to come in contact with the projecting electrode 47 of the RFID unit 5 for electrical connection; and an electrical pathway disposed between the connector 25 and the pattern electrode 27 to connect the smartphone 3 and the RFID unit 5.