Item Utilization Tracking via Wireless Tag History Comparison
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Solution Overview
Problem
Existing item management systems fail to accurately record the utilization of equipment due to inaccurate manual entries and inability to track item usage beyond key lending and returning, as they do not account for item usage by multiple users.
Innovation Solution
An item management system utilizing wireless devices (RFID tags) installed in areas, on items, and carried by users, which tracks the history of item positions and user movements to generate accurate utilization data by comparing these histories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual entry of utilization information into a ledger is performed, then records of key lending and returning can be kept, but accuracy of utilization records deteriorates due to inaccurate or forgotten entries
Solution Approach 1:
The system enables automatic recording of utilization information through wireless communication between tags and readers. The item tag and user tag automatically exchange identification information without manual intervention, and the management server automatically generates utilization records, eliminating the need for manual ledger entry while ensuring accurate tracking of item usage
Solution Approach 2:
The manual mechanical process of writing in a ledger is replaced by an automated electronic system using wireless communication (RFID tags and readers) and computer-based management software. This substitution eliminates human error in recording and provides automated, accurate utilization data
2Measurement precision
If only key lending and returning is tracked, then simple record-keeping is achieved, but accurate item utilization information is lost when keys are transferred between users
Solution Approach 1:
Wireless communication tags serve as intermediaries between users and items. The item tag attached to equipment and user tags carried by individuals enable automatic identification and tracking of who is using what item, providing precise utilization information without complex manual tracking procedures
Solution Approach 2:
The wireless tag system serves multiple functions: it tracks key lending and returning, monitors item utilization in real-time, records user movement, and generates comprehensive utilization reports. This multi-functional approach achieves accurate tracking without proportionally increasing system complexity
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 system provides highly accurate records of item utilization by automatically associating items with the users who have used them, enhancing accuracy and reducing manual errors, while also allowing continuous tracking of item and user locations.
Implementation Method 1
a plurality of first wireless devices installed in a plurality of areas, respectively; a second wireless device attached to an item; a plurality of third wireless devices carried by a plurality of users, respectively; at least one reading apparatus that is capable of reading, from a wireless device, identification information stored in the wireless device
Data Source
AI summary
There is provided an item management system including: first wireless devices installed in respective areas; a second wireless device attached to an item; third wireless devices carried by respective users; at least one reading apparatus capable of reading identification information from a wireless device; a history obtaining unit that obtains a history of positions of the item based on results of reading of identification information from the first and second wireless devices, and a history of movement of each user based on results of reading of identification information from the first and third wireless devices; and a generation unit that generates actual utilization data associating the item with a user who has utilized the item based on comparison between the history of positions of the item and the history of movement of one or more users.