Code Reading Device Using Dual-Light Color Detection for POS Discount Automation
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Solution Overview
Problem
Current methods for applying discounts in shops involve manual input by assistants, leading to errors and increased costs due to the need for printed labels with barcodes, which are time-consuming and costly.
Innovation Solution
A code reading device and method that uses different lights to read discount information from codes attached to items, automatically determining if a discount should be applied based on the presence of a specific color line, reducing manual input and label printing requirements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual input of discount information is used, then the process can be performed without additional equipment, but errors occur and efficiency is reduced
Solution Approach 1:
The patent replaces the manual mechanical input system with an optical reading system. The code reading device uses light to automatically read discount information from codes attached to items, substituting the manual keyboard input process. This eliminates human error in data entry while maintaining operational efficiency, as the code reading device can quickly scan and process multiple items without fatigue or distraction.
2Extent of automation
If printed labels with barcodes are used, then discount information can be automatically read, but the cost and time for printing and attaching labels increases
Solution Approach 1:
The patent applies preliminary action by pre-attaching simple color-coded lines to items before they reach the checkout process. These lines are applied during item storage or preparation, well in advance of the sales transaction. This allows the discount information to be ready for automatic reading without requiring last-minute label printing or attachment, significantly reducing the time loss at the point of sale.
Solution Approach 2:
The patent uses simple, inexpensive color-coded lines instead of complex printed labels with barcodes. These lines are basic visual markers that can be applied cheaply and discarded after use. The simplicity of these markers reduces the cost of materials and the complexity of the reading system required, making the overall automation process more cost-effective than using traditional barcode labels.
3Measurement precision
If multiple lights are used to read the code, then discount information can be accurately detected, but the device complexity increases
Solution Approach 1:
The patent uses color changes as the basis for discount detection. Different colored lines (e.g., red, blue, green) represent different discount rates or types. The code reading device illuminates these lines with light and detects the reflected color to determine the discount information. This color-based system is simpler than barcode reading because it relies on basic color detection rather than complex pattern recognition, reducing device complexity while maintaining accurate discount detection.
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 allows for low-cost, automatic acquisition and application of discounts, minimizing errors and reducing the time and expense associated with manual input and label printing.
Implementation Method 1
a reading unit that reads information of a code based on a reflected light from the code attached to an item
Data Source
AI summary
A POS terminal (code reading device) according to one example embodiment of the present invention includes: a code reading unit that reads information of a code based on a reflected light from the code attached to an item; and a discount processing unit that makes a discount of the item when the information of the code is not read by using a first light being irradiated on the code and the information of the code is read by using a second light being irradiated on the code, wherein the second light is different from the first light.