Shelf Edge NFC Reader Layout for Flexible Electronic Shelf Labels
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Solution Overview
Problem
The existing electronic shelf label systems with proprietary shelf edge strip sub-systems are costly due to numerous mechanical components that wear out, require maintenance, and limit flexibility in positioning ESLs along the shelf edge.
Innovation Solution
An electronic shelf label system utilizing a near-field communication (NFC) sub-system with an NFC reader and conductor loop on the shelf edge strip for wireless communication with NFC-enabled labels, eliminating electromechanical contacts and allowing flexible positioning of ESLs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mechanical contact components are used to connect ESLs to the shelf edge strip, then electrical connection is achieved, but the system becomes expensive and unreliable due to wear and maintenance requirements
Solution Approach 1:
The patent replaces the mechanical contact system (resilient contacts on ESLs pressing against conductor tracks on the shelf edge strip) with a wireless communication system. The management module on the shelf edge strip communicates with ESLs via wireless signals, eliminating all mechanical contact components including resilient contacts, conductor tracks, and associated mounting structures. This substitution directly resolves the contradiction by removing the source of wear and mechanical failure while reducing overall system complexity.
Solution Approach 2:
The patent introduces a wireless communication intermediary (radio frequency or other wireless signal transmission) between the management module and ESLs. Instead of direct mechanical electrical contact, wireless signals serve as the intermediary carrier for data and control signals. This intermediary approach eliminates the need for physical contact components while maintaining reliable communication, thereby improving reliability and reducing mechanical complexity.
2Ease of manufacture
If proprietary mechanical components are provided in each ESL and shelf edge strip, then electrical connection is established, but production and maintenance costs increase significantly
Solution Approach 1:
By replacing the complex mechanical contact system with wireless communication, the patent eliminates the need for precision-machined conductor tracks, resilient contacts, and associated mechanical assemblies in both ESLs and shelf edge strips. This reduces manufacturing complexity and material costs while simultaneously improving operational reliability by removing wear-prone components. The wireless management module can be implemented with standard electronics, simplifying production.
3Adaptability or versatility
If fixed mechanical positioning structures are used for ESLs on the shelf edge strip, then electrical connection is ensured, but flexibility in positioning ESLs is lost
Solution Approach 1:
The wireless communication system removes the dependency on fixed mechanical positioning structures. Since electrical connection is no longer required through physical contact, ESLs can be positioned flexibly along the shelf edge strip without needing to align with specific conductor track locations or mounting features. The wireless signals propagate through space, allowing ESLs to be placed at any position along the shelf while maintaining communication with the management module, thereby maximizing positioning adaptability and eliminating mechanical positioning 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
This solution reduces production and maintenance costs, enhances system reliability by avoiding mechanical components, and allows for flexible placement and segmentation of ESLs along the shelf edge, improving operational efficiency and cost-effectiveness.
Implementation Method 1
the shelf edge strip comprises an NFC reader which is designed for wireless communication with the access point, and that at least one conductor loop is provided, which is connected to the NFC reader, is formed along the shelf edge strip and is used for NFC communication with an NFC-enabled shelf label
Data Source
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.