NFC Shelf Rail Subsystem for Electronic Labels
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Solution Overview
Problem
Existing electronic shelf label systems are costly due to numerous mechanical components that are prone to wear, contamination, and damage, leading to operational malfunctions and high maintenance costs, and restrict the flexibility of shelf label positioning.
Innovation Solution
An electronic shelf label system utilizing near-field communication (NFC) technology, where each shelf label has a standardized NFC module for contactless communication with an NFC reader integrated into the shelf rail, eliminating mechanical contacts and allowing flexible positioning and reduced maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical contacts and conductors are used to electrically connect ESLs to the management module, then electrical connection is achieved, but the system becomes expensive, prone to wear and contamination, and requires considerable maintenance costs
Solution Approach 1:
The patent replaces the mechanical contact system (spring-loaded contacts and conductors) with a wireless communication system. The management module communicates with ESLs via radio frequency signals, eliminating the need for physical electrical connections. This substitution removes all mechanical components from the ESL structure, thereby improving reliability by eliminating wear and contamination issues while reducing device complexity.
Solution Approach 2:
The patent introduces a wireless communication intermediary (radio frequency transmitter/receiver system) between the management module and ESLs. Instead of direct mechanical electrical contact, data and power are transmitted through electromagnetic fields, serving as an intermediary that eliminates the need for physical contacts while maintaining functional connectivity.
2Ease of manufacture
If mechanical components are used in ESLs and shelf rails, then electrical connection is established, but the components are subject to wear, contamination, and damage leading to malfunctions
Solution Approach 1:
The patent eliminates mechanical components by implementing wireless communication between the management module and ESLs. The spring-loaded contacts and conductors are replaced with radio frequency transmission, which requires no physical assembly or maintenance. This simplifies manufacturing by removing precision mechanical parts while simultaneously improving operational stability by eliminating wear and contamination vulnerabilities.
3Reliability
If spring-loaded contacts are used on ESLs to contact conductors, then electrical connection is achieved, but the system requires considerable additional manufacturing and maintenance costs
Solution Approach 1:
The patent replaces the mechanical spring-loaded contact system with wireless radio frequency communication. This eliminates the need for springs, contacts, and conductors on each ESL, dramatically reducing component quantity and device complexity. The connection reliability is maintained through robust wireless communication protocols, achieving reliable data and power transmission without any mechanical parts.
4Ease of operation
If the shelf rail subsystem uses individual mechanical components for each ESL, then electrical connection is provided, but the ESLs cannot be freely positioned or moved along the shelf rail
Solution Approach 1:
The patent replaces the mechanical positioning system with wireless communication that is independent of physical location. ESLs can be freely positioned or moved along the shelf rail without any mechanical constraints because the wireless connection maintains connectivity regardless of position. This eliminates mechanical components entirely while maximizing positioning flexibility, allowing dynamic reconfiguration of the display system.
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 reduces manufacturing and maintenance costs, enables flexible shelf label placement, and provides a maintenance-free operation by using standardized NFC modules for communication, enhancing the overall cost-effectiveness and reliability.
Implementation Method 1
the NFC reader is configured for radio-based communication with the access point
Implementation Method 2
at least one conductor loop connected to the NFC reader, configured along the shelf rail and serving for NFC communication with an NFC-enabled shelf label
Data Source
Figure 1
Figure 2~3
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AI summary
The invention relates to an electronic shelf labelling system, wherein the system has a server which is designed to individually address a plurality of shelf labels in order to communicate data with them in an addressed manner, and wherein the system has at least one access point which is connected to the server and is designed for radio communication of the data with the shelf labels, and wherein the system has a near-field communication (NFC) sub-system on a shelf edge strip of a shelf, wherein the NFC sub-system is characterised in such a way that the shelf edge strip has an NFC reader which is designed for radio-based communication with the access point, and in such a way that at least one conductor loop is provided which is connected to the NFC reader, formed along the shelf edge strip and functioning for NFC communication with an NFC-enabled shelf label, wherein at least one NFC-enabled shelf label is attached to the shelf edge strip corresponding to the conductor loop, and wherein the NFC reader is designed for NFC communication of the data with the shelf label addressed by the server.