RFID Reader Antenna Positioning for Multi-Tag Detection
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Solution Overview
Problem
Conventional image processing apparatuses can only read information from a single RFID tag, limiting their ability to obtain data from multiple storage units using a single communication unit.
Innovation Solution
An image processing apparatus is designed with multiple storage units and a single reading unit positioned to read information from both, allowing for the retrieval of data from multiple storage units using a single communication unit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single communication unit is used to read information from multiple RFID tags, then device complexity is reduced, but the ability to read from multiple storage units simultaneously is limited
Solution Approach 1:
The patent positions multiple RFID tags at different spatial locations and orientations relative to the single communication unit antenna. By exploiting the three-dimensional space around the antenna, the system enables reading from multiple tags simultaneously without adding multiple antennas, thus resolving the contradiction between device complexity and adaptability.
Solution Approach 2:
Each RFID tag is positioned at a specific location with distinct electromagnetic characteristics relative to the communication unit. The system exploits local variations in electromagnetic field distribution and tag positioning to differentiate and read from multiple storage units using a single communication unit.
2Adaptability or versatility
If multiple communication units are used to read information from multiple RFID tags, then the ability to read from multiple storage units is improved, but device complexity increases
Solution Approach 1:
Instead of adding multiple communication units, the patent utilizes spatial dimension by positioning multiple RFID tags at different locations and orientations around a single communication unit antenna. This dimensional approach allows the single antenna to interact with multiple tags simultaneously through electromagnetic field coupling, achieving multi-tag reading capability without increasing hardware complexity.
Solution Approach 2:
The single communication unit antenna is designed to serve multiple functions by reading from multiple different RFID tags simultaneously. The antenna acts as a universal reader that can detect signals from various tags positioned at different locations, eliminating the need for dedicated communication units for each tag.
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
Enables efficient data acquisition from multiple storage units without the need for multiple communication antennas, reducing complexity and cost while maintaining effective communication with weak electromagnetic waves.
Implementation Method 1
a reading unit disposed so as to face the first storage unit and the second storage unit. The reading unit reads the first information stored in the first storage unit and the second information stored in the second storage unit
Data Source
AI summary
An information processing apparatus includes a first storage unit that stores first information regarding a first unit, a second storage unit that stores second information regarding a second unit, and a reading unit disposed so as to face the first unit and the second unit. The reading unit reads the first information stored in the first storage unit and the second information stored in the second storage unit.