RFID Book Tagging Device Optimizing Tag Placement
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Solution Overview
Problem
Conventional RFID systems face challenges in determining optimal attachment positions for RFID tags on books due to interference from metallic objects and conductive materials, leading to inefficient reading performance and potential damage from repetitive attachment and detachment processes, especially in library settings where high-frequency RFID tags are used.
Innovation Solution
An RFID-based book tagging device and method that includes a page holder, adjustable barcode reader bracket, tag mover, and evaluation system to optimize RFID tag placement near the book spine, using ultra-high-frequency RFID tags that are small and lightweight, and connecting to a database for encoding book information, with a tag mover to facilitate horizontal movement and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional RFID tags are repeatedly attached and detached to find optimal positions, then reading performance can be improved, but the RFID tags are damaged and adhesion is worn down
Solution Approach 1:
The patent uses a movable platform to pre-position the RFID tag at multiple potential locations before final attachment, allowing optimization of reading performance without repeatedly attaching and detaching the tag. The platform enables the tag to be moved horizontally to different positions while maintaining continuous connection, thus finding the optimal position without compromising tag integrity.
2Length of stationary object
If high-frequency RFID tags are used to achieve longer detection range, then detection range is improved, but the tags become larger and heavier
Solution Approach 1:
The patent separates the RFID tag from its power source by using a passive RFID tag that draws power from the electromagnetic field generated by the reader system. This allows the tag itself to remain small and lightweight while the detection range is extended through the use of high-frequency operation and optimized antenna design in the reader system rather than increasing tag size.
3Use of energy by moving object
If metallic objects and conductive materials are present near RFID tags, then electromagnetic coupling is improved, but interference is generated that affects reading performance
Solution Approach 1:
The patent acknowledges that metallic objects and conductive materials in the book binding process can generate electromagnetic coupling, but this same coupling can cause interference. The solution involves carefully controlling and positioning these metallic elements during the book binding process to optimize the electromagnetic field distribution, converting potential interference into beneficial field concentration that enhances reading performance at the optimal tag position.
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
Ensures optimal signal strength and reading performance of RFID tags by determining the best attachment position, reducing the risk of damage and improving the efficiency of library management processes such as inventory and security detection.
Implementation Method 1
The passive RFID tags have no power source internally and require an external electromagnetic field, that is mostly emitted from RFID readers, to power and activate an internal analog circuit embedded in the passive RFID tags for the chip operations
Implementation Method 2
Since the passive RFID tags and readers utilize the electromagnetic waves to transfer energy and signals
Data Source
AI summary
The present invention relates to a radio frequency identification (RFID) device and method for book tagging, using which a RFID tag which is designed to attach to a book is first being scanned and detected in view of optimizing the RFID tag's signal strength and its effective reading rate as well so as to determine a position on the book for the RFID tag to attach thereat while allowing the detection to the RFID tag to be prevented from being adversely affected by metals or magnetic materials that are situated ambient to the book.