RFID Storage Cabinet Layout for Parallel Item Scanning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional RFID-based storage cabinets in healthcare settings face inefficiencies due to prolonged scan times, which lock the cabinet door during scanning, causing delays in high-traffic areas and hindering hospital operations, and are not scalable without increasing scan times.
Innovation Solution
An improved item storage and tracking system with a controller that simultaneously activates multiple signal receiving arrangements, allowing for simultaneous scanning of RFID tags across multiple antennas, reducing scan time and enabling faster cabinet access while maintaining accurate inventory tracking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional RFID scanning is used with multiple antennas scanning sequentially, then each antenna can complete its scan accurately, but the total scan time increases significantly (20 seconds for 5 antennas)
Solution Approach 1:
The patent combines multiple RFID antenna scans into a single simultaneous operation. Instead of having antennas scan sequentially (one after another), the system activates multiple antennas at the same time to scan multiple items concurrently, merging what were previously separate time-consuming operations into a single unified scan event.
Solution Approach 2:
The patent implements continuous scanning by keeping multiple antennas actively scanning simultaneously rather than having them operate in discrete sequential steps. This continuous parallel operation eliminates the idle time between sequential scans and maintains constant monitoring of all items in the cabinet.
2Measurement precision
If the cabinet door remains locked during the scanning process to ensure accurate inventory tracking, then inventory accuracy is maintained, but staff members experience delays in accessing items
Solution Approach 1:
The patent enables continuous cabinet access by implementing parallel scanning operations that occur simultaneously with door access. Multiple antennas scan items in parallel, allowing the scanning process to complete quickly enough that the door remains accessible during normal operations, eliminating the need to lock the door during scanning.
Solution Approach 2:
The patent rushes through the scanning process by executing multiple antenna scans simultaneously rather than sequentially. This compressed scan time allows the system to complete inventory tracking so quickly that the cabinet door does not need to be locked, effectively skipping the access delay that would otherwise occur.
3Quantity of substance
If more antennas are added to scan larger volumes of items, then the scanning coverage increases, but the sequential scan time increases proportionally
Solution Approach 1:
The patent merges the scanning operations of multiple antennas into a single simultaneous operation. By combining the capabilities of multiple antennas to operate in parallel rather than sequence, the system can scan a larger quantity of items without proportionally increasing the total scan time.
Solution Approach 2:
The patent transitions from one-dimensional sequential scanning (one antenna at a time) to multi-dimensional parallel scanning (multiple antennas simultaneously). This dimensional change in the scanning approach allows the system to handle larger item volumes by adding antennas without linearly increasing scan time, as all antennas operate concurrently in parallel.
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
The system significantly reduces scan time from 20 seconds to approximately 4 seconds, minimizing wait times for hospital staff and allowing for larger, more efficient cabinet designs without increasing scanning duration, thus enhancing operational efficiency and inventory management.
Implementation Method 1
RFID tagged catheters hung from hangers with antenna modules interspersed between each of the catheters
Data Source
AI summary
A system for storing and tracking at least one item includes a housing having an interior with a plurality of item storage arrangements disposed in or associated with the housing. A plurality of signal receiving arrangements is configured to receive data from a plurality of signal emitting members, and at least one signal receiving arrangement is adjacent to each item storage arrangement. The system also includes a controller in communication with the plurality of signal receiving arrangements, the controller programmed or configured to simultaneously scan at least two signal receiving arrangements from the plurality of signal receiving arrangements. An item storage cabinet and a method of tracking items are also disclosed.