Mobile RFID Reader Antenna Interface Design

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Solution Overview

Problem

RFID reader systems are costly and require multiple units for comprehensive coverage, necessitating a solution to reduce overall system expenses while ensuring effective communication with RFID tags across desired areas.

Innovation Solution

The development of mobile RFID readers with detachable docking stations and external antenna systems, allowing the reader to interface with additional antennas for enhanced coverage without the need for multiple readers at each location.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If multiple RFID readers are deployed to provide comprehensive coverage, then the coverage area is improved, but the system cost increases

Engineering Contradiction:
Improvecoverage areaVSAvoidnumber of readers
Core Design Contradiction:
Area of stationary objectVSQuantity of substance

Solution Approach 1:

The RFID reader is designed with a detachable antenna interface that allows it to work with multiple different antenna systems. A single reader unit can be coupled with various external antennas through the docking interface, enabling one reader to serve multiple locations and coverage areas, thereby reducing the total number of readers needed while maintaining comprehensive coverage

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system is divided into separate functional components: a portable reader unit and detachable antenna systems. The reader can be physically separated from different antenna configurations and reconfigured as needed. This segmentation allows the reader to be moved between different antenna systems to provide coverage in multiple areas without requiring permanent installation of multiple readers

Inventive Principle:
Principle #1Segmentation

2Reliability

If multiple RFID readers are deployed to ensure effective communication, then the communication reliability is improved, but the system cost increases

Engineering Contradiction:
Improvecommunication reliabilityVSAvoidnumber of readers
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

The standardized docking interface enables a single reader to be reliably coupled with different antenna systems depending on the operational requirements. The reader maintains consistent communication performance across different antenna configurations through the universal interface, ensuring reliable tag communication without needing multiple specialized readers for different locations

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system allows dynamic reconfiguration of the reader with different antenna systems based on operational needs. The detachable docking interface enables the reader to be adapted to different coverage requirements and environmental conditions, maintaining communication reliability across varying scenarios without requiring permanent deployment of multiple readers

Inventive Principle:
Principle #15Dynamics

3Area of stationary object

If external antenna systems are used with mobile readers, then the coverage area is expanded, but the device complexity increases

Engineering Contradiction:
Improvecoverage areaVSAvoidsystem complexity
Core Design Contradiction:
Area of stationary objectVSDevice complexity

Solution Approach 1:

The system separates the reader electronics from the antenna systems through a standardized docking interface. This segmentation allows the antenna systems to be independently designed for specific coverage requirements while the reader remains a standardized portable unit. The interface standardization reduces the complexity of integration, as the same docking mechanism works across different antenna configurations

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The docking interface is designed as a universal connection that works with multiple antenna types and configurations. This universality simplifies the system architecture by providing a single standardized interface rather than requiring custom connections for each antenna type, thereby expanding coverage capabilities without proportionally increasing system complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentUS7696875B2Antenna interfaces for mobile RFID readers
Publication Date: 2010.04.13 SYMBOL TECHNOLOGIES LLC
  • US7696875B2 patent drawing
  • US7696875B2 patent drawing
  • US7696875B2 patent drawing

AI summary

Methods, systems, and apparatuses for communicating with radio frequency identification (RFID) tags using an RFID reader are provided. A first communication signal configured to communicate with at least one RFID tag is generated. The first communication signal is transmitted from a first antenna of the reader. The reader is docked with a docking station, the docking station including a contact member coupled to at least one additional antenna, enabling the reader to couple a second communication signal through the contact member to the at least one additional antenna.