Smart Alarm Management Using Directional People Counters
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Solution Overview
Problem
Traditional electronic article surveillance (EAS) systems experience false alarms due to environmental noise, resonance from tagged items, and undeactivated tags, limiting usable space and efficiency in retail stores, and are prone to environmental interference and costly retrofits.
Innovation Solution
A smart alarm management system incorporating directional people counters and security tags with a white-list mechanism to reduce false alarms, utilizing a reader device and server to manage alarms based on the presence and direction of customers and the status of security tags, allowing closer placement of tagged merchandise and adjusting detection zones to prevent unnecessary alarms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional EAS systems use reader devices to detect tag bearing articles, then theft detection capability is provided, but false alarms occur when customers or non-protected merchandise pass through, causing embarrassment and annoyance
Solution Approach 1:
The patent divides the detection space into multiple zones (first zone for entry detection, second zone for exit detection) and segments the detection function into separate reader devices positioned at different locations. This spatial segmentation allows the system to distinguish between customers entering/exiting and tagged merchandise, reducing false alarms while maintaining theft detection capability.
Solution Approach 2:
The patent introduces a directional people counter as an intermediary device that detects customer movement direction and provides this information to the reader device. This intermediary helps the reader device differentiate between legitimate customer traffic and potential theft, enabling more accurate alarm management by filtering out false alarms caused by customers or non-protected items.
2Area of stationary object
If tag bearing articles are placed closer to reader devices to increase display space, then usable display area increases, but false alarms increase due to resonance from tagged items
Solution Approach 1:
The patent implements dynamic alarm management where the reader device adjusts its detection sensitivity and alarm triggering based on real-time information from the directional people counter. When customers are detected moving in certain directions, the system dynamically adjusts detection parameters to reduce false alarms from resonance while maintaining security awareness.
Solution Approach 2:
The system uses feedback from the directional people counter about customer presence and movement direction to adjust the reader device's detection thresholds and alarm triggering. This feedback mechanism allows the system to learn from environmental conditions and adapt its detection sensitivity, reducing false alarms from tagged merchandise resonance while maintaining effective theft detection.
3Reliability
If traditional EAS systems are deployed in retail stores, then security monitoring is provided, but environmental noise and interference cause false alarms
Solution Approach 1:
The patent applies local quality by positioning reader devices and directional people counters at specific locations within the store (entry and exit points) where they can most effectively monitor customer flow. This localized deployment optimizes the detection environment and reduces the impact of environmental noise interference by focusing detection capabilities where they are most needed.
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 effectively reduces false alarms, increases usable space for displaying tagged merchandise, and improves the efficiency of EAS systems by accurately triggering alarms only when necessary, preventing embarrassment to customers and reducing environmental interference.
Implementation Method 1
uses directional detectors to detect in which direction people are passing through the pedestals
Implementation Method 2
a resonant circuit with a coil and a capacitor that operate to resonate when exposed to a predetermined electromagnetic field
Implementation Method 3
RFID tags use an integrated circuit coupled to an antenna (e.g., dipole antenna) or a resonant circuit and operate to emit information when exposed to a predetermined electromagnetic field
Data Source
AI summary
A security alarm management system and method includes a reader device, a person counter, and an alarm. The reader device reads security tags within a range of the reader. The person counter detects people passing through a point of entry. The person counter can determine a direction of travel of people passing through the point of entry. A white-list includes entries or product identifiers that will not trigger an alarm. The alarm is triggered if conditions associated with the reader device, person counter, and white-list are met.