Electronic Shelf Label LED Pattern Detection for Store Event Alerts
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Solution Overview
Problem
Existing electronic shelf labels require inefficient manual monitoring by store staff to detect events such as low battery, out-of-stock items, and product misplacement, leading to potential sales declines due to prolonged misplacement and stock shortages.
Innovation Solution
A method and system that utilize a light emission pattern of LEDs in electronic shelf labels to identify and provide information on events like battery level, stock status, and product misplacement by capturing images and identifying specific LED patterns, enabling automated event detection and correction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual monitoring by store staff is used to detect events, then operational simplicity is maintained, but productivity and response time deteriorate due to inefficiency
Solution Approach 1:
The electronic shelf label system performs self-monitoring of battery levels, product stock status, and placement accuracy. The LED indicators automatically signal events without requiring staff intervention, enabling the system to monitor itself and report status changes autonomously.
Solution Approach 2:
The patent replaces manual visual inspection and physical checking by staff with an automated optical signaling system using LEDs. The system uses light emission patterns visible through the electronic paper display to communicate event status, substituting mechanical human labor with an automated optical indication mechanism.
2Productivity
If automated LED-based event detection is implemented, then productivity and response time improve, but device complexity increases due to additional components
Solution Approach 1:
The LED serves multiple functions: it indicates battery status, product stock status, and placement accuracy simultaneously through different light emission patterns. This multi-functionality reduces the need for separate indicator components for each event type, thereby limiting the increase in device complexity.
Solution Approach 2:
The system uses different colors of light emission from the LED to represent different event types and statuses. By encoding information through color variations and light patterns, the system communicates multiple types of events using a single component, avoiding the need for multiple separate indicators.
3Measurement precision
If all events are monitored individually by staff, then measurement precision is maintained, but loss of time increases due to extended monitoring duration
Solution Approach 1:
The system continuously monitors and detects events in advance before they become critical. Battery levels, stock status, and product placement are checked proactively, allowing staff to respond to alerts before issues affect sales or require urgent attention, thus reducing the time lost to reactive monitoring.
Solution Approach 2:
The LED provides immediate visual feedback about system status and detected events. When an event occurs (low battery, out-of-stock, misplacement), the LED emits a specific light pattern that instantly communicates the issue to staff, eliminating the time delay associated with manual checking and enabling rapid response.
4Ease of operation
If electronic labels are used to display product information, then ease of operation improves for information updates, but loss of information occurs when events go undetected
Solution Approach 1:
The electronic shelf label system separates information display functions from event monitoring functions. The electronic paper display continues to show product information while the LED independently monitors and signals events. This segmentation ensures that automated information updates do not interfere with event detection, preventing information loss about system status.
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
Automated detection and correction of events improve store management efficiency by providing timely information on product status and reducing manual oversight, enhancing sales by maintaining accurate product displays.
Implementation Method 1
identifying a light emission pattern of the LED based on the captured image
Data Source
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AI summary
Provided in one embodiment is a method by which a processor of a computing device linked to an electronic shelf label provides event information related to the electronic shelf label, performed by a processor of a computing device linked to the electronic shelf label, comprising the steps of: acquiring a captured image by capturing an LED included in the electronic shelf label; identifying a light emission pattern of the LED on the basis of the captured image; and providing information about an event related to the electronic shelf label, which corresponds to the identified light emission pattern of the LED.