BLE Anti-theft Tags for Retail Product Tracking
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Solution Overview
Problem
Existing anti-theft systems for luxury products in stores are cumbersome and require expensive infrastructure, including bulky mechanical fixings and gantries, which hinder customer interaction and product movement tracking.
Innovation Solution
An anti-theft system using electronic tags with Bluetooth Low Energy (BLE) chips that emit signals only within a defined perimeter, allowing real-time monitoring and alert generation via portable devices, without the need for locks or extensive infrastructure, utilizing BLE and WiFi technologies to track product presence and movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If RFID chips with mechanical fixing and gantries are used, then product security is improved, but device complexity and infrastructure cost increase
Solution Approach 1:
The patent replaces the mechanical RFID gantry system with an electronic solution using smartphones and Bluetooth Low Energy (BLE) technology. The mechanical infrastructure of overhead gantries is substituted with portable electronic devices that customers carry, eliminating the need for complex mechanical installation and reduction of infrastructure complexity while maintaining security functionality.
Solution Approach 2:
The patent introduces smartphones as intermediary devices between the product tags and the monitoring system. Instead of direct communication between gantries and RFID chips, the smartphone acts as a mediator that receives BLE signals from tags, processes location data, and communicates with the server, thereby simplifying the overall system architecture.
2Reliability
If mechanical fixing of RFID chips is used, then anti-theft capability is improved, but ease of operation deteriorates due to customer interaction restrictions
Solution Approach 1:
The patent replaces the mechanical locking mechanism with an electronic monitoring system using BLE technology. The mechanical fixing that physically restrained products is substituted with electronic signal monitoring, allowing customers to freely handle and try products while the system continuously tracks their location and detects unauthorized removal attempts.
Solution Approach 2:
The system enables customers to use their own smartphones as security devices, eliminating the need for store staff to manually monitor or physically constrain products. The smartphone application automatically performs tracking, alert generation, and communication with the server, allowing customers to participate in the security process themselves without hindering their shopping experience.
3Reliability
If gantries and mechanical fixing are installed, then security monitoring is improved, but loss of time increases due to checkout process requirements
Solution Approach 1:
The patent implements preliminary action by continuously monitoring product locations in real-time throughout the store using BLE signals. Instead of waiting for checkout to detect theft attempts, the system proactively tracks product movement and generates alerts immediately when unauthorized removal is detected, eliminating the need for time-consuming manual verification at checkout counters.
Solution Approach 2:
The patent replaces the mechanical checkout verification process with electronic real-time monitoring. The physical inspection and manual verification steps at checkout are substituted with automated electronic tracking that continuously monitors product locations and communicates with the server, dramatically reducing checkout time while maintaining security.
4Loss of information
If RFID readers with continuous interrogation are used, then product tracking is improved, but use of energy increases
Solution Approach 1:
The patent implements periodic action by using event-triggered BLE advertising instead of continuous RFID interrogation. The tags transmit location information periodically or when specific events occur (such as when a product is picked up or moved), rather than requiring continuous active communication. This approach maintains accurate tracking information while significantly reducing energy consumption compared to continuous monitoring systems.
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 system reduces infrastructure costs, allows seamless customer interaction, and effectively detects unauthorized product movement, enhancing security and data management for marketing purposes.
Implementation Method 1
The tag is provided with a chip which emits a first signal which is only receivable within a defined perimeter around the chip
Data Source
Figure 1
Figure 2a~2b
AI summary
The invention relates to an anti-theft system applicable in a commercial environment such as a watch store. The products displayed in the store are secured by an electronic tag (4) attached to the product. The tag is equipped with a chip (16) that emits a first signal, which is only receiveable within a defined perimeter around the chip. Within this perimeter is an electronic transmission device (5) that sends the data transmitted in the first signal as a second signal, which also contains a value relating to the distance between the tag and the transmission device. The second signal is managed by one or more computers, preferably laptops (6), which are equipped with a digital application configured to analyze the second signal and, in particular, to verify the presence of the tags (4) within a security zone (10) defined around the transmission device (5).