RFID EAS Tag Integrating Logic Block for Customizable Alarms
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Solution Overview
Problem
Current alarming electronic article surveillance (EAS) tags lack customization options for alarm tones and volume, and do not provide additional information about alarm events or battery levels, limiting their functionality and efficiency in retail security settings.
Innovation Solution
Integration of RFID logic blocks into EAS tags, including a transceiver, memory, processor, and alarm transducers, allowing for configuration of alarm settings, tracking of items, and monitoring of battery levels, enabling enhanced security features and inventory control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RFID logic block is integrated into EAS tag, then functionality and information capability are improved, but device complexity increases
Solution Approach 1:
The patent combines RFID technology with EAS tag functionality by integrating an RFID logic block that includes a transceiver, processor, and memory into the existing EAS tag structure. This merging allows the tag to perform both traditional EAS functions and additional RFID capabilities such as two-way communication, configuration, and information gathering, thereby improving versatility while managing complexity through integration.
Solution Approach 2:
The integrated RFID logic block enables the EAS tag to perform multiple functions beyond simple alarm triggering, including receiving interrogation signals, sending trigger signals, storing identifiers, and providing two-way communication. This multi-functionality allows a single device to serve both security and inventory management purposes, improving adaptability across different retail security needs.
2Device complexity
If alarming tag provides only audible alarm, then device complexity is reduced, but information capability and customization are limited
Solution Approach 1:
The RFID logic block acts as an intermediary between the EAS sensor and external systems, enabling two-way communication. The transceiver receives interrogation signals from external readers and can send back information about alarm events, battery status, and tag configuration. This intermediary capability allows rich information exchange without requiring complex built-in interfaces on the tag itself.
Solution Approach 2:
The integrated system enables feedback communication where the tag can report alarm event information, battery status, and configuration data back to external readers through the RFID transceiver. This feedback mechanism provides comprehensive information about alarm events and device status without adding complex output interfaces to the tag.
3Use of energy by moving object
If EAS tag uses traditional alarm-only design, then power consumption is reduced, but battery life management and monitoring capability are limited
Solution Approach 1:
The RFID transceiver operates in a periodic manner, being activated only when triggered by an external interrogation signal rather than continuously. This periodic operation allows the tag to remain in a low-power state most of the time while still being capable of two-way communication when needed, thereby extending battery life while maintaining monitoring capability.
Solution Approach 2:
The tag includes self-monitoring capabilities through the integrated processor and memory, allowing it to track its own battery status and operational state. The RFID logic block enables the tag to report this self-diagnostic information to external readers, allowing the system to monitor battery life without adding continuous power consumption for monitoring circuits.
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 integration of RFID capabilities in EAS tags allows for customizable alarms, improved battery life management, and enhanced inventory tracking, reducing power consumption and facilitating the secure monitoring of merchandise, thereby improving retail security and inventory management.
Implementation Method 1
The transceiver is operable to receive a first interrogation signal
Implementation Method 2
a detection system is configured at an exit from the protected area, which comprises one or more transmitters and antennas ('pedestals') capable of generating an electromagnetic field across the exit
Data Source
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AI summary
An alarming electronic article surveillance ("EAS") tag for securing an item of merchandise includes an EAS sensor, a radio frequency identification ("RFID") logic block, an alarm transducer, and an alarming tag processor. The RFID logic block includes a transceiver, a memory and a processor. The transceiver operates to receive a first interrogation signal. The memory includes a first identifier associated with the alarming EAS tag and a second identifier associated with the item of merchandise. The processor is operable to send a first trigger signal responsive to the transceiver receiving the first interrogation signal. The alarming tag processor is electrically coupled to the RFID logic block and the EAS sensor. The alarm transducer is operable to produce at least one of a visual indicator and an audible indicator based on the EAS sensor and the alarming tag processor.