RFID Reader Dynamic Stop Timing for Tag Completeness
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Solution Overview
Problem
Existing reading devices for RFID tags often stop reading prematurely, leading to potential omissions of unread tags due to failure or improper positioning, without ensuring all tags are read, especially when reading multiple objects simultaneously.
Innovation Solution
A reading device with a reading unit, counting unit, and control unit that determines the stop timing based on the number of read RFID tags, allowing for extension of the reading process if not all tags are identified, ensuring all tags are read before stopping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If reading stops after a predetermined time, then reading efficiency is improved, but reading completeness deteriorates
Solution Approach 1:
The system continuously monitors the reading status of RFID tags and provides feedback to the control unit. When all tags are successfully read, the system receives confirmation feedback and automatically stops reading, ensuring completeness without requiring a predetermined time limit.
Solution Approach 2:
The reading stop timing is made dynamic rather than fixed. The control unit adjusts the reading duration based on real-time reading status, extending reading time when tags are missed and stopping early when all tags are successfully read, thus resolving the contradiction between efficiency and completeness.
2Reliability
If reading time is extended to ensure all tags are read, then reading completeness is improved, but time consumption increases
Solution Approach 1:
The control unit receives real-time feedback on reading status and dynamically adjusts reading duration. This prevents unnecessary extension of reading time when all tags are already read, reducing time loss while ensuring completeness through conditional extension only when needed.
Solution Approach 2:
The system performs preliminary checks and continuous monitoring during the reading process to detect whether all tags have been read. This allows for early termination when completeness is achieved, avoiding unnecessary time consumption while maintaining reading completeness.
3Loss of time
If reading stops prematurely, then time consumption is reduced, but reading accuracy deteriorates
Solution Approach 1:
The system uses feedback from the reading status to determine when to stop. The control unit only stops reading when confirmation is received that all tags have been successfully read, ensuring reading accuracy is not compromised while avoiding unnecessary time consumption.
4Reliability
If reading continues indefinitely to ensure all tags are read, then reading completeness is improved, but productivity deteriorates
Solution Approach 1:
The system implements feedback-based automatic termination. When the reading status confirms all tags have been read, the control unit automatically stops the reading process, preventing indefinite continuation and maintaining high productivity while ensuring completeness.
Solution Approach 2:
The reading process duration is made dynamic, adjusting based on actual reading progress. The system extends reading time only as long as necessary to capture missed tags, then automatically terminates, thereby maintaining productivity while ensuring reading completeness.
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
Prevents premature stopping and ensures all RFID tags are read, reducing omissions by adjusting the reading time based on the reading situation, thereby improving the accuracy and efficiency of the reading process.
Implementation Method 1
a reading unit (10) configured to read tag information with which a plurality of pre-decided RFID tags attached to objects are capable of being specified, from the RFID tags of the objects
Data Source
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AI summary
According to one embodiment, a reading device includes: a reading unit configured to read tag information with which objects and a plurality of pre-decided RFID tags attached to objects are able to be specified, from the RFID tags of the objects to which the RFID tags are attached; a counting unit configured to count the number of read RFID tags for each object based on the tag information read by the reading unit; a determination unit configured to determine whether the number of RFID tags counted for each object matches the number of RFID tags pre-decided to be added to the object; and a control unit configured to control a timing at which the reading of the reading unit stops in accordance with a determination result of the determination unit.