RFID Switch Tag With Detachable Card And Coupling Coil

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Solution Overview

Problem

Conventional RFID tags lack flexibility in supporting multiple frequencies, limiting their application in various scenarios and requiring multiple tags for different operating conditions, which is inconvenient and less efficient.

Innovation Solution

A RFID switch tag with a detachable card containing multiple ultra-high frequency RFID modules and a near-field communication module, coupled with a booster antenna and a movable coupler, allowing selective coupling with the antenna for different frequency operations, enabling use in various scenarios such as electronic toll collection and contactless payments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional RFID tags use a single fixed frequency configuration, then the device structure is simple, but the adaptability to different operating scenarios is limited

Engineering Contradiction:

Improvefrequency adaptabilityVSAvoidtag configuration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The RFID tag is divided into separate functional modules: a base tag with a first antenna for high frequency operation, and detachable card modules each containing second antennas for ultra-high frequency operation. This segmentation allows the system to support multiple frequencies without requiring a complex integrated design, resolving the contradiction between adaptability and complexity.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The base tag is designed with universal compatibility to work with both high frequency and ultra-high frequency systems. By incorporating multiple frequency capabilities in a single base unit that can interface with different detachable cards, the system achieves multi-functionality without proportionally increasing overall complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Ease of operation

If multiple separate RFID tags are used for different frequency requirements, then each tag can be optimized for its specific frequency, but the ease of operation is reduced due to needing multiple tags

Engineering Contradiction:

Improveuser operation convenienceVSAvoidnumber of tags required

Core Design Contradiction:

Ease of operationVSQuantity of substance

Solution Approach 1:

Multiple frequency-specific RFID functions are merged into a single integrated system. The base tag combines high frequency and ultra-high frequency capabilities, allowing users to operate with one tag instead of multiple separate tags. This merging directly improves ease of operation while reducing the quantity of tags needed.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system incorporates dynamic configurability where the base tag can dynamically interface with different detachable cards depending on the operational requirement. This dynamic adaptation allows a single tag to serve multiple purposes, improving user convenience without requiring users to manage multiple static tags.

Inventive Principle:

Principle #15Dynamics

3Productivity

If multiple RFID tags are maintained for different scenarios, then frequency-specific performance is optimized, but the loss of time is increased due to needing to switch between tags

Engineering Contradiction:

Improveoperational efficiencyVSAvoidtime for tag switching

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The base tag is pre-configured with multiple frequency capabilities and antenna systems, so that when a detachable card is inserted, the appropriate frequency can be immediately activated without requiring time-consuming reconfiguration or switching. This preliminary preparation eliminates the need to switch between multiple separate tags, improving productivity while reducing time loss.

Inventive Principle:

Principle #10Preliminary action

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The RFID switch tag provides higher accuracy in identification, simplifies user operation by allowing a single tag to function across multiple travel conditions, and facilitates wide application in various scenarios due to its detachable and adaptable design.

Implementation Method 1

a coupling coil, configured to couple the booster antenna with one of the at least one ultra-high frequency RFID module when the detachable card is attached to the housing

Methodology Applied

Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 2

a booster antenna, and at least one ultra-high frequency RFID module uncoupled to the booster antenna when the detachable card is detached from the housing

Methodology Applied

Scientific EffectElectromagnetic radiation:

Implementation Method 3

contactless payment systems can be implemented using high frequency (HF) or near-field communication (NFC) readers and transponders (e.g., operating at a frequency of 13.56 MHz)

Methodology Applied

Scientific EffectNear-field communication:

Data Source

PatentUS11663440B1Radio frequency identification switch tag

Publication Date: 2023.05.30 LI BING XUAN

AI summary

A radio frequency identification (RFID) switch tag exemplarily includes: a housing; a detachable card including: a booster antenna, and at least one ultra-high frequency RFID module uncoupled to the booster antenna when the detachable card is detached from the housing; and a coupling coil, configured to couple the booster antenna with one of the at least one ultra-high frequency RFID module when the detachable card is attached to the housing. The RFID switch tag may have complete functions, the RFID switch tag is detachable and convenient in use, and the RFID switch tag can be applied in various scenarios.