Product display and inventory monitoring
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Solution Overview
Problem
Existing inventory monitoring systems, such as those using electronic article surveillance and capacitive sensor pads, often fail to detect product movement or theft in a timely manner, leading to potential losses and inefficiencies in retail and other settings.
Innovation Solution
A system that includes a capacitive sensor pad integrated with a display pedestal and a shelf, which detects movement via a tether or coil spring, allowing for real-time tracking and differentiation between restricted and open access zones, generating interaction data to prevent theft and manage inventory effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional inventory monitoring systems (EAS, barcode scanners, shelf weight scales) are used, then product movement can be monitored, but detection timeliness is poor and theft is not detected in a timely fashion
Solution Approach 1:
The patent replaces traditional mechanical inventory monitoring systems (barcode scanners, shelf weight scales, RFID tags) with a capacitive sensing system that uses electrical field changes to detect product movement. The capacitive sensor array detects changes in capacitance values when products are moved or removed, providing real-time detection without mechanical contact or line-of-sight requirements, thus improving detection timeliness.
Solution Approach 2:
The patent introduces an intermediary capacitive sensing layer between the shelf surface and the products. This capacitive sensor array acts as a mediator that detects the presence and movement of products through electrical field interactions, enabling timely detection of product removal without direct contact with the products themselves.
2Measurement precision
If capacitive sensor pads are used to monitor product stock, then inventory changes can be detected, but the system cannot differentiate between product removal and customer interaction
Solution Approach 1:
The patent divides the capacitive sensing surface into multiple discrete sensor elements arranged in an array pattern. Each sensor element monitors a specific zone, and by analyzing the spatial distribution and temporal sequence of capacitance changes across multiple sensors, the system can differentiate between product removal (sustained capacitance change in one location) and customer interaction (transient capacitance changes across multiple locations).
Solution Approach 2:
The patent implements a feedback mechanism where the capacitive sensor array continuously monitors capacitance values and provides real-time feedback to the control system. The control system analyzes patterns of capacitance changes and provides feedback signals to distinguish between legitimate customer interactions and theft, enabling contextual understanding of product movement.
3Reliability
If display pedestals with tethers are used to secure products, then product security is improved, but the tether may interfere with capacitive sensor detection
Solution Approach 1:
The patent applies local quality by positioning capacitive sensors in specific zones where they can detect product movement without being interfered with by tethers. The sensor array is strategically placed to monitor critical areas while the tether is positioned in regions where it has minimal impact on capacitive field distribution, allowing both security and detection to function effectively.
Solution Approach 2:
The patent employs a dynamic tether system that can extend and retract based on product interaction. When a customer legitimately picks up a product, the tether extends to allow movement; when the product is returned, the tether retracts. The capacitive sensors dynamically adjust their monitoring parameters to account for tether position changes, maintaining detection accuracy throughout the interaction cycle.
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 enhances consumer experience, reduces theft, and improves inventory management by providing real-time data on product interactions and movements, eliminating the need for manual inspections and enabling quick restocking and targeted sales efforts.
Implementation Method 1
Capacitive sensor pad systems have been developed to monitor the stock or supply of products disposed on a shelf. The sensor pads in such systems detect changes in capacitance as the products are added or removed from the shelf.
Implementation Method 2
a sensor system including a capacitive sensor pad, the capacitive sensor pad being supported by the fixture and configured to detect the movement of the product via the tether
Data Source
AI summary
A system for monitoring a product on display includes a display pedestal configured to secure the product to a fixture to which the display pedestal is mounted. The display pedestal includes a tether to allow movement of the product relative to the fixture. The system includes a sensor system including a capacitive sensor pad. The capacitive sensor pad is supported by the fixture and configured to detect the movement of the product via the tether.