RFID Tag Communication Format Switching Based on Usage Frequency

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Solution Overview

Problem

Existing RFID tag communication systems are inefficient due to equally proportioned switching of communication formats, leading to unnecessary communication opportunities for infrequently used formats, resulting in prolonged time to complete information scanning.

Innovation Solution

An RFID tag communication system that sequentially switches communication formats based on their frequency of use, prioritizing frequently used formats to reduce the time required for successful wireless communication.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If communication formats are switched in equal proportions, then all communication formats are treated equally, but the time to complete information scanning increases due to unnecessary communication opportunities for infrequently used formats

Engineering Contradiction:
Improvecommunication format coverageVSAvoidtime to complete information scanning
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent changes the switching parameter from equal proportion to frequency-based proportion. The format switching portion switches communication formats according to the frequency of use results, where formats with higher usage frequency are switched more frequently. This parameter change resolves the contradiction by adapting the switching strategy to actual usage patterns, reducing time for infrequently used formats while maintaining coverage for frequently used ones.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent implements feedback through the frequency of use results recording mechanism. The recording portion records the frequency of use results for each communication format, and this recorded feedback information is used by the format switching portion to determine the switching order. This feedback loop allows the system to learn from past performance and optimize future switching decisions, reducing unnecessary communication attempts.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If communication formats are switched according to predetermined priority ranking, then the switching order is fixed, but the efficiency decreases when actual usage patterns differ from the predetermined ranking

Engineering Contradiction:
Improveswitching control simplicityVSAvoidcommunication efficiency
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent transitions from a static predetermined priority ranking to a dynamic switching order based on actual usage frequency. The format switching portion determines the switching order in real-time based on recorded frequency of use results, allowing the system to adapt to changing usage patterns. This dynamic approach maintains ease of operation through automated frequency-based decision making while significantly improving communication efficiency.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system performs self-service by automatically learning and adapting to usage patterns without external intervention. The recording portion automatically records frequency of use results, and the format switching portion automatically uses this information to determine switching order. This self-service mechanism eliminates the need for manual configuration of priority rankings while optimizing communication efficiency based on actual usage behavior.

Inventive Principle:
Principle #25Self-service

3Adaptability or versatility

If multiple communication formats are provided, then compatibility with different RFID tags is improved, but the number of communication opportunities increases unnecessarily for infrequently used formats

Engineering Contradiction:
ImproveRFID tag compatibilityVSAvoidnumber of communication opportunities
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent changes the parameter of communication opportunity allocation from uniform distribution to frequency-based distribution. The format switching portion switches communication formats according to the frequency of use results, allocating more opportunities to frequently used formats and fewer opportunities to infrequently used formats. This parameter change maintains compatibility with multiple RFID tag types while reducing the total number of unnecessary communication attempts.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent applies local quality by treating different communication formats differently based on their usage frequency. Instead of uniform treatment, the system assigns different switching frequencies to different formats according to their actual usage patterns. This local differentiation optimizes the quantity of communication opportunities, providing more attempts for frequently used formats that have higher compatibility needs while reducing attempts for infrequently used formats.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS8922345B2RFID tag communication system and RFID tag communication apparatus
Publication Date: 2014.12.30 BROTHER KOGYO KK
  • US8922345B2 patent drawing
  • US8922345B2 patent drawing
  • US8922345B2 patent drawing

AI summary

This disclosure discloses an RFID tag communication system comprising: a communication antenna that performs wireless communication using a plurality of communication formats with a plurality of types of RFID circuit elements, each of the RFID circuit elements having an IC circuit part configured to store information and a tag antenna configured to transmit and receive information, each type of the plurality of types of RFID circuit element having a different compatibility factor and lacking communication compatibility; a format switching portion that sequentially switches the plurality of communication formats in a switching order that corresponds to the frequency of use results of each of the plurality of communication formats used in the past; and an information acquisition portion that performs an acquisition process to acquire information by wireless communication from the RFID circuit elements using each of the communication formats that are sequentially switched by the format switching portion.