Wearable RFID Antenna Array for Hands-Free Scanning
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Solution Overview
Problem
Current portable RFID scanners are primarily uni-directional and require manual pointing, limiting their efficiency in applications where hands-free operation is necessary, such as inventory control and shipping verification.
Innovation Solution
A wearable RFID scanning system featuring a vest-like garment with a flexible, multi-directional antenna array that allows for automatic detection of RFID tags without conscious effort, enabling hands-free operation and real-time data transmission or storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual pointing scanners are used, then scanning accuracy is improved, but operational efficiency deteriorates due to hands-free requirement
Solution Approach 1:
The RFID scanning system automatically detects and reads tags without requiring manual operation. The wearable device with antenna array continuously scans for RFID tags in the vicinity, eliminating the need for employees to manually point scanners at each item while maintaining accurate tag detection and data collection
2Device complexity
If portable RFID scanners are made uni-directional for manual pointing, then device complexity is reduced, but adaptability deteriorates for hands-free applications
Solution Approach 1:
The patent transitions from uni-directional manual scanning to multi-directional automatic scanning by implementing an antenna array that radiates RFID signals in multiple directions simultaneously. This dimensional expansion of scanning coverage enables hands-free operation while maintaining relatively simple wearable device structure
3Productivity
If automatic tag detection is implemented without manual intervention, then productivity is improved, but measurement precision deteriorates due to lack of targeted scanning
Solution Approach 1:
The RFID scanning system continuously monitors the environment for tag signals and provides real-time feedback on tag presence and location. The system automatically adjusts scanning parameters based on detected signal strength and position, ensuring accurate tag identification while maintaining high-speed automatic operation without manual intervention
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 seamless, hands-free scanning of RFID tags in various environments, improving operational efficiency by allowing users to perform tasks while continuously monitoring and recording tag presence without manual intervention.
Implementation Method 1
a wearable RFID system including an RF antenna, an RFID reader... When the worker moves an object with an attached RFID tag, the antenna automatically begins scanning for signals from the object's RFID tag. When a RF signal is received by the antenna, the RFID reader collects the signal
Data Source
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AI summary
In combination, an RFID antenna array, an RFID tag reader, and a power supply, the foregoing components being adapted to be worn or otherwise borne by a person and be operatively connected so that the power supply powers the reader and the reader energizes the antenna array and receives RFID tag signals through the antenna array while the person passes through an area as the person' s hands and arms are unencumbered by said components.