Code Reading Device Light-Based Discount Detection
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Solution Overview
Problem
Current methods for applying discounts in shops, such as manual input of discount rates or using printed labels with barcodes, are prone to errors and are costly, with the latter requiring time for label printing and attachment.
Innovation Solution
A code reading device and method that uses different lights to read discount information from a code attached to an item, automatically acquiring and applying discounts by distinguishing between codes based on light reflection, reducing the need for manual input or printed labels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a printed label with barcode is attached to an item for discount, then the discount information can be automatically read, but the cost increases and time is required for label printing and attachment
Solution Approach 1:
The invention extracts the discount information function from a separate physical label and integrates it directly into the existing code structure on the item. By adding a discount line to the code itself rather than requiring a separate label, the system eliminates the time-consuming steps of label printing and attachment while maintaining automatic reading capability
Solution Approach 2:
The invention merges the discount information with the existing code by adding a discount line to the code structure. This combination allows the discount information to be read automatically along with the code information in a single scanning operation, eliminating the need for separate label processing
2Extent of automation
If a printed label with barcode is attached to an item for discount, then the discount information can be automatically read, but the cost increases
Solution Approach 1:
The invention extracts the discount information function from an expensive separate label and implements it through a simple visual marking (discount line) on the existing code. This eliminates the need for costly label printing materials and equipment while maintaining automatic reading functionality
Solution Approach 2:
The invention uses a simple, inexpensive discount line marking instead of a permanent physical label. This lightweight approach reduces material costs and allows for easy modification or removal of discount information without requiring expensive label replacement
3Adaptability or versatility
If a shop assistant manually inputs discount rate or price, then flexibility is maintained, but errors occur due to overlooking seals or mistakes in entry
Solution Approach 1:
The invention creates a feedback loop where the code reading device automatically detects the discount line and retrieves the corresponding discount information from stored data. This automated feedback mechanism eliminates manual input errors while maintaining the flexibility of various discount types through pre-configured discount data
4Measurement precision
If different lights are used to read the code, then accurate discount information can be acquired, but the device complexity increases
Solution Approach 1:
The invention uses color-based differentiation where a discount line of a specific color (e.g., blue) is detected by a corresponding color light (e.g., blue light). This color-matching approach enables accurate discount identification while keeping the device relatively simple through the use of color-selective lighting and 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 approach allows for accurate and automatic discount application at a low cost, reducing the risk of errors and streamlining the discount process by using light-based code reading technology.
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, 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, makes a discount associated with the second light for the item, wherein the second light is different from the first light.