RFID Reader Data Sharing for Inventory Progress Tracking
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Solution Overview
Problem
In inventory management using radio frequency identification (RFID) tags, multiple workers simultaneously reading tags lead to difficulties in tracking progress, resulting in unnecessary tasks and potential duplication of efforts, as individual workers cannot easily determine which tags have already been read by others.
Innovation Solution
An information reading apparatus with communication capabilities allows real-time data sharing between devices, determining and transmitting unread data to other apparatuses, thereby ensuring all devices within a communication range have common data, allowing each apparatus to track the entire reading progress without the need for a central server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple workers simultaneously read RFID tags without coordination, then inventory reading speed increases, but duplication of reading tasks occurs and progress tracking becomes difficult
Solution Approach 1:
The patent combines the functions of multiple information reading apparatuses into a unified system where each device shares read data through wireless communication. The determination sections compare locally read data with received data from other apparatuses, merging the reading progress information across all devices to eliminate duplication while maintaining individual reading capabilities.
Solution Approach 2:
The system implements feedback mechanisms where each information reading apparatus transmits read data to other apparatuses and receives their reading status. The determination sections continuously compare new reads against received data, creating a feedback loop that informs workers about already-read tags and prevents redundant reading tasks.
2Loss of information
If a central server is used to compile and track read data from multiple workers, then progress tracking accuracy improves, but system complexity and dependency on external infrastructure increase
Solution Approach 1:
Each information reading apparatus autonomously determines whether read data is duplicate by comparing it with data received from other apparatuses. The determination sections perform local analysis and decision-making without requiring central server intervention, enabling each device to serve itself in tracking reading progress and eliminating duplication.
Solution Approach 2:
The patent makes each information reading apparatus multi-functional by equipping it with both reading capabilities and data sharing/determination capabilities. Each device simultaneously performs tag reading, wireless communication, data reception, and duplicate determination, eliminating the need for separate central server infrastructure.
3Ease of operation
If work areas are sectioned for each worker to avoid duplication, then reading task coordination improves, but the probability of reading the same tags near boundaries increases
Solution Approach 1:
The patent introduces wireless data transmission as an intermediary mechanism that connects all information reading apparatuses. This mediator enables real-time sharing of read data across work area boundaries, allowing workers to coordinate automatically without physical sectioning while preventing duplication even when reading tags near boundary regions.
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 configuration enables efficient task performance by minimizing unnecessary readings and ensuring all workers have real-time access to shared data, reducing duplication and improving overall inventory management efficiency.
Implementation Method 1
information reading apparatuses, such as radio tag readers... radio frequency identification (RFID) tags... establishes radio communication with one or more other information reading apparatuses
Data Source
Figure 1
Figure 2A~2B
Figure 2C~3
AI summary
An information reading apparatus includes an information reading section, a communication section, a memory, a first determination section, a second determination section, and a control unit. In the apparatus, every time data is determined to be unread data (i.e., data read by one information reading apparatus but not shared yet by all of a plurality of information reading apparatuses) by the first determination section, the control unit records the unread data in the memory, while transmitting the unread data to other information reading apparatuses through the communication section. The control unit also records data determined to be unread data by the second determination section in the memory. A plurality of such information reading apparatuses are employed in an information reading system in which each information reading apparatus can easily keep track of the entire progress of reading tasks.