RFID Location Visualization Using Transparent Displays
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Solution Overview
Problem
RFID systems face challenges in accurately locating tagged items due to imprecise data, leading to wasted time searching for products in storage areas, as they can only provide a general location rather than a precise physical position.
Innovation Solution
An enhanced RFID system that uses portable electronic devices with transparent displays and communication channels to process RF wave angles, allowing users to visualize the location of RFID tagged items by superimposing product information over the background, enabling precise identification and location through triangulation and database integration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If RFID systems provide general location data, then the system is simple and cost-effective, but the location precision is insufficient for easy product location
Solution Approach 1:
The patent introduces a portable electronic device as an intermediary between the RFID transceiver and the user. This device includes a transceiver for receiving RFID signals, a processor for determining location based on RF wave angles, and a transparent display for visualizing the location. The intermediary device bridges the gap between simple RFID tagging and precise location visualization without requiring complex infrastructure changes.
Solution Approach 2:
The patent adds a visual dimension to RFID location data by using a transparent display to superimpose product information over the physical background. Instead of仅提供 textual or digital location data, the system projects information directly onto the storage area, allowing users to see product locations and details overlaid on the actual physical space, thereby enhancing location precision through spatial visualization.
2Reliability
If RFID systems use only passive tags, then the system cost is lower, but the read range and detection capability are limited
Solution Approach 1:
The portable electronic device is designed to work with both passive and active RFID tags, making the system universal. The transceiver can detect signals from either tag type, and the location determination algorithm adapts to the characteristics of different tag types. This multi-functionality allows the system to achieve reliable detection capability regardless of tag type while maintaining flexibility in deployment scenarios.
3Productivity
If manual searching is used to locate products, then no additional equipment is needed, but time is wasted searching for particular items
Solution Approach 1:
The patent replaces the mechanical manual searching process with an automated electronic system. The portable electronic device automatically scans for RFID tags, processes RF wave angles to determine locations, and visualizes product information on the transparent display. This substitution eliminates the need for manual inspection and searching, significantly improving productivity while reducing the time required to locate specific products.
4Measurement precision
If general location data is provided, then the RFID system is easier to operate, but precise physical location determination becomes difficult
Solution Approach 1:
The portable electronic device performs automated location determination without requiring user intervention in the complex processing steps. The device's processor automatically calculates physical locations based on RF wave angles from multiple antennas, and the transparent display automatically presents the information in an intuitive visual format. This self-service approach maintains ease of operation while achieving precise physical location determination, as the complexity is handled automatically by the device itself.
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
This solution increases the accuracy and ease of locating RFID tagged items by providing a visual representation of their location, reducing search time and improving product identification in storage areas.
Implementation Method 1
The transceiver transmits electromagnetic waves that are received by an antenna and a microchip embedded on the RFID tag. The microchip includes an embedded code, or identification (ID), and is activated by the electromagnetic waves
Implementation Method 2
The microchip is activated by the electromagnetic waves and outputs electromagnetic waves at another frequency to send a return signal to the transceiver
Data Source
AI summary
Methods and apparatus to visualize locations of radio frequency identification (RFID) tagged items are described. One example method includes receiving a request from a portable electronic device to access product information associated with an individual radio frequency identification (RFID) tagged item, determining a location of the product information in a database, transmitting the located product information to the portable electronic device for display thereon, receiving modified product information associated with the individual RFID tagged item from the portable electronic device, and storing the modified product information to the location of the product information in the database.