Electronic Tag Data Processing for Retail Checkout Cancellation
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Solution Overview
Problem
The existing article sales data processing systems face inefficiencies when a customer cancels part of their purchase after the electronic tag data has been read, requiring redundant reading operations and decreasing processing efficiency.
Innovation Solution
An article sales data processing apparatus with an electronic tag data storage section and an article item storage section that allows switching between input and cancel modes, where duplicate electronic tag data is cleared in cancel mode to prevent reprocessing of already read data, and data is deleted from the article item storage section when the cancel mode is activated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If electronic tag data is read from all articles in the communication area, then all articles can be processed simultaneously, but already read articles may be read again causing redundant processing
Solution Approach 1:
The system performs preliminary actions by storing the electronic tag data of all articles in the communication area in memory before any cancellation occurs. When an article is cancelled, the system checks whether its electronic tag data is already stored in memory, and if so, skips the redundant reading operation. This preliminary storage of data enables the system to efficiently handle cancellations without re-reading already processed articles.
2Productivity
If electronic tag data is stored in memory for duplicate detection, then redundant processing is prevented, but memory resources are consumed
Solution Approach 1:
The system applies local quality by storing electronic tag data selectively in memory - specifically, it stores data for articles that are currently in the communication area and have been read. The memory is used to store only the necessary information (electronic tag data) required for duplicate detection, rather than storing all possible article information. This localized storage approach optimizes memory resource usage while maintaining processing efficiency.
3Reliability
If all articles are removed from the communication area for cancellation, then duplicate reading is prevented, but the operation becomes complex and time-consuming
Solution Approach 1:
The system uses copying by creating a digital copy of the electronic tag data in memory, which serves as a record of read articles. When cancellation is needed, the system compares the electronic tag data of articles in the communication area against the stored copies in memory, allowing accurate identification and cancellation of specific articles without requiring physical removal of all articles from the communication area. This copying approach simplifies the cancellation operation while maintaining accuracy.
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 enhances processing efficiency by allowing for efficient cancellation of partially purchased items without the need for re-reading all items, reducing the number of processing steps and simplifying the operation for cashiers, thus improving overall system efficiency.
Implementation Method 1
Data communication using electromagnetic waves is performed between the electronic tag reader and electronic tag
Data Source
AI summary
An article sales data processing apparatus has an electronic tag data memory and an article item buffer. In the case where the same data as electronic tag data read by an electronic tag reader is not stored in the electronic tag data memory, the read electronic tag data is added to the electronic tag data memory. When the operating mode is switched to the cancel mode, data in the electronic tag data memory is cleared. In the case where the input mode is selected, article sales data is acquired based on the electronic tag data added to the electronic tag data memory and the acquired article sales data is added to an article item buffer. In the case where the cancel mode is selected, the article sales data acquired based on the electronic tag data added to the electronic tag data memory is deleted from the article item buffer.