Checkout Belt Divider Detection for Reliable Goods Scanning
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Solution Overview
Problem
Existing POS systems face reliability issues in recognizing goods when they are deposited closely together, leading to unreliable scanning due to obstruction of optical sight axes and customer placement errors.
Innovation Solution
Incorporating a sensor device arranged at a distance from the goods detection device along the feed path to detect the presence of goods dividers, which controls the transport belt's movement, ensuring accurate recognition by adjusting speed and stopping the belt when necessary, and using RFID or bar codes for clear detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If goods are deposited closely together on the transport belt, then customer convenience is improved, but goods recognition reliability deteriorates due to obstruction of optical sight axes
Solution Approach 1:
The sensor device detects goods dividers in advance before they reach the goods detection device, allowing the system to prepare for upcoming goods batches. This preliminary detection enables the control device to adjust belt speed proactively, ensuring proper spacing is maintained even when goods are initially deposited closely together, thus preventing recognition failures before they occur.
Solution Approach 2:
The system implements continuous feedback by monitoring the position of goods dividers with the sensor device and dynamically adjusting the transport belt speed through the control device. This closed-loop control ensures that goods are always presented at optimal spacing to the goods detection device, maintaining high recognition reliability regardless of initial customer placement density.
2Productivity
If the scanning device attempts to recognize closely spaced goods, then throughput is maintained, but recognition accuracy deteriorates due to obstructed optical sight axes
Solution Approach 1:
The transport belt speed is made dynamic rather than fixed. The control device continuously adjusts the belt speed based on real-time detection of goods divider positions by the sensor device. This dynamic speed adjustment ensures that goods are optimally spaced during the scanning process, maintaining high recognition accuracy while preserving throughput by only slowing down when necessary.
Solution Approach 2:
The sensor device acts as an intermediary between the customer's goods placement and the goods detection device. It provides advance warning of upcoming goods dividers, allowing the control device to mediate the transport process by adjusting belt speed to ensure proper spacing, thereby protecting the recognition accuracy of the goods detection device.
3Reliability
If customers are trained to place goods at sufficient distances, then recognition reliability improves, but customer convenience and ease of operation deteriorates
Solution Approach 1:
The system performs the spacing function automatically without requiring customer intervention or training. The sensor device and control device work together to self-regulate the presentation of goods to the scanner, eliminating the need for customers to learn proper placement techniques while maintaining high recognition reliability.
Solution Approach 2:
The mechanical approach of relying on customers to manually space goods is replaced with an automated sensor-based detection and control system. The optical sensor detects goods dividers and the control device automatically adjusts belt transport, substituting customer action with automated control to achieve reliable recognition without impacting convenience.
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
Enhances the reliability and precision of goods recognition, allowing for efficient and accurate separation and identification of items, even when deposited at close distances, thereby improving the overall checkout process.
Implementation Method 1
using RFID or bar codes for clear detection
Implementation Method 2
The sensor device is formed and provided to detect whether or not a goods divider is present in the detection area
Data Source
AI summary
The invention relates to a POS system arrangement with a transport belt device with at least one belt portion which for the transport of the goods present thereon can be put into a feed movement along a goods feed path, wherein the goods along the goods feed path are separable from each other by at least one goods divider, and a goods detection device for detecting goods transported by means of the transport belt device. There is provided at least one sensor device arranged at a distance from the goods detection device along the goods feed path with a sensor and a detection area, wherein the sensor device is configured to detect by means of the sensor whether the goods divider is present in the detection area, and a control device which is configured to control the feed movement of the belt portion of the transport belt device.