RFID Laundry Basket Layout for Preventing Garment Sorting Errors
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Solution Overview
Problem
Existing baskets for collecting clothes to be washed in institutions face issues with personal garments being mistakenly placed in compartments meant for flat linen, leading to loss or damage due to incorrect sorting, which is time-consuming and hygienically challenging.
Innovation Solution
A basket with separate hampers for flat linen and personal clothes, equipped with RFID tag readers that alert operators when personal garments are about to be incorrectly placed, ensuring immediate correction and preventing mix-ups.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate hampers for flat linen and personal clothes are used, then sorting accuracy is improved, but device complexity increases
Solution Approach 1:
The basket is divided into separate hampers (first hamper for flat linen, second hamper for personal clothes) that can be physically separated. Each hamper is equipped with independent tag readers and alarm systems, allowing independent operation and reducing the complexity of managing a single large sorting system.
Solution Approach 2:
RFID tags serve as intermediaries between the clothes and the sorting system. The tag readers detect these tags to automatically identify clothing type, eliminating the need for manual inspection and reducing operational complexity while maintaining high sorting accuracy.
2Reliability
If RFID tag readers and alarm systems are added, then sorting reliability is improved, but device complexity increases
Solution Approach 1:
The system provides immediate feedback through alarm signalling devices when incorrect clothing is detected in a hamper. This real-time feedback mechanism prevents sorting errors before they result in loss, significantly improving reliability while keeping the electronic system relatively simple through direct sensor-actuator connections.
Solution Approach 2:
The RFID tags on the clothes self-identify their type, and the system automatically processes this information without requiring manual verification. This self-service approach improves reliability by eliminating human error while minimizing the complexity of the electronic processing required.
3Manufacturing precision
If manual sorting inspection is performed, then sorting accuracy is improved, but operator workload increases
Solution Approach 1:
The manual mechanical inspection process is replaced with automatic RFID tag detection and electronic alarm systems. The tag readers automatically scan for RFID tags as clothes are placed in hampers, eliminating the need for operators to manually inspect each item while maintaining high sorting accuracy.
Solution Approach 2:
The clothes themselves carry RFID tags that automatically provide identification information when scanned. This self-service mechanism eliminates the need for operator intervention in the identification process, reducing workload while maintaining accuracy.
4Reliability
If continuous monitoring of hampers is implemented, then loss prevention is improved, but energy consumption increases
Solution Approach 1:
The tag readers perform periodic scanning rather than continuous monitoring, checking for RFID tags at regular intervals or when triggered by hamper weight changes. This periodic operation maintains effective loss prevention while significantly reducing energy consumption compared to continuous monitoring.
Solution Approach 2:
The RFID tags continuously emit their identification signals without requiring active power from the monitoring system. The passive nature of RFID technology allows for effective monitoring with minimal energy consumption from the basket system.
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 loss and damage of personal garments by ensuring correct sorting, reducing operator workload, and maintaining hygiene by avoiding contact with soiled clothes.
Implementation Method 1
a first tag reader (8) applied to the first hamper (4) and configured to read a code (31) from a tag (30) applied to clothes to be washed (3)
Data Source
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AI summary
A basket (1) is described for collecting clothes to be washed (2, 3) of at least two types (A, B), a first type (A) comprising flat linen, such as sheets or towels, and a second type (B) comprising personal clothes; the basket (1) includes at least a first hamper (4) for inserting the first type (A) of clothes and at least a second hamper (5) for inserting the second type (B) of clothes. At least a first tag reader (8) is applied to the first hamper (4) and configured to read a code (31) from a tag (30) applied to clothes to be washed (3), the code (31) identifying the second type (B) of clothes; a controller is configured to receive an input signal from the first tag reader (8), if the first tag reader (8) detects the code (31) identifying the second type (B) of clothes, and to actuate the first alarm signalling device (25) if it receives the signal from the first tag reader (8), to alert an operator of the incorrect use of the first hamper (4).