Automated Security Tag Removal via RFID Unlocking
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Solution Overview
Problem
Existing security tags in retail environments require manual removal after purchase, which is time-consuming and prone to errors, and can inadvertently detach other tags, leading to loss and inefficiency.
Innovation Solution
A system using a scanner with a release signal transmitter and RFID driver that sends a specific RFID signal to unlock the security tag, allowing for automated detachment by converting electrical energy into mechanical energy to release the tag from the merchandise, ensuring accurate and efficient removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual removal of security tags is used, then the removal process can be performed, but it is time-consuming and prone to errors
Solution Approach 1:
The patent replaces the manual mechanical removal process with an automated electromagnetic system. The scanner uses RFID technology to wirelessly communicate with the security tag, triggering an electromagnetic capacitor to activate the lock mechanism, thereby eliminating the need for manual mechanical detachment and significantly improving removal speed and accuracy.
2Extent of automation
If a detaching signal is transmitted to unlock the security tag, then the tag can be removed automatically, but other security tags in the vicinity may be inadvertently removed
Solution Approach 1:
The patent implements local quality by making the detaching signal specific to each individual security tag. The scanner communicates the unique identifier of the purchased item's tag through RFID, ensuring that only the targeted tag receives and responds to the detaching signal. This localized approach prevents inadvertent removal of other tags while maintaining automated operation.
3Power
If the capacitor is electrically connected to provide energy for detachment, then the lock mechanism can be unlocked, but energy management becomes critical
Solution Approach 1:
The patent applies preliminary action by charging the capacitor within the security tag before the detaching moment. The tag continuously charges the capacitor through electromagnetic induction from the scanner, so that when the detaching signal is received, the capacitor is already charged and ready to immediately activate the lock mechanism. This eliminates the need for real-time energy conversion during detachment, improving reliability and reducing energy management complexity.
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
The system enables efficient and error-free removal of security tags, reducing manual intervention and minimizing the risk of detaching unintended tags, thereby enhancing retail operations and reducing losses.
Implementation Method 1
a RFID driver 220 configured to transmit a RFID signal 164 to the RFID device 240 associated with the security tag 104
Implementation Method 2
generate an unlocking signal 172, in response to receiving the release signal 166, for unlocking a lock mechanism 280 of the security tag 104, wherein a first electrical energy of the unlocking signal 172 is derived from at least a portion of a second electrical energy of the release signal 166
Data Source
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AI summary
Aspects of the present disclosure include methods, systems, and non-transitory computer readable media for receiving a confirmation signal to unlock the security tag from being locked to a merchandise, transmitting a RFID signal to the RFID device associated with the security tag to enable a controller to receive a release signal used to unlock the security tag from the merchandise, and transmitting the release signal to the controller to unlock the security tag from the merchandise.