RFID Key Dispenser for Unattended Bicycle Rental Enrollment
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Solution Overview
Problem
Conventional RFID tag distribution models for bicycle rental systems are inefficient, requiring a week or more for enrollment and not allowing immediate access to rental services, as members must wait for their RFID tags to be mailed before using the system.
Innovation Solution
An RFID key dispenser that can program and dispense keys on-site, utilizing a network-connected RFID programming station and a key transport mechanism to manage key retrieval, dispensing, and defective key collection, enabling unattended operation and rapid membership activation at any location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If RFID tags are mailed to members after enrollment, then members can receive their keys, but the enrollment process takes a week or more
Solution Approach 1:
The system performs preliminary actions by pre-programming RFID keys with member information before the member even completes enrollment. The key dispenser contains multiple RFID keys in cartridges, and when a member enrolls, the system automatically programs the next available key with the member's data and dispenses it immediately, eliminating the mailing delay entirely.
Solution Approach 2:
The key dispenser is designed as an automated self-service machine that members can use directly at rental stations. The system automatically retrieves keys from cartridges, programs them with member information received over the network, and dispenses them without requiring operator intervention, enabling immediate key acquisition upon enrollment.
2Speed
If RFID keys are programmed and dispensed on-site, then members can access services immediately, but the dispensing system becomes more complex
Solution Approach 1:
The dispenser system is segmented into distinct functional modules: key storage cartridges, key retrieval mechanisms, RFID programming stations, and dispensing mechanisms. Each module performs a specific function independently, making the overall complex system manageable through modular design. Cartridges can be easily replaced when depleted, and the programming station communicates over the network with the central system.
Solution Approach 2:
The system uses an intermediary key cartridge as a buffer between the central system and the member. The cartridges store pre-prepared RFID keys and are automatically retrieved and programmed by the dispenser's internal mechanisms, which act as intermediaries between the network and the physical key delivery, simplifying the interface between different system components.
3Quantity of substance
If multiple key retrieval stations are used, then key availability increases, but the mechanism for managing keys becomes more complex
Solution Approach 1:
The key shuttle is designed as a universal transport mechanism that can service multiple key retrieval stations along its path. A single shuttle performs the function of retrieving keys from all stations sequentially, eliminating the need for separate retrieval mechanisms at each station. The shuttle engages with release mechanisms at different stations using the same basic engagement principle, reducing overall system complexity while maintaining multiple access points.
Data Source
AI summary
An RFID key dispenser. The tag dispenser has a simple mechanical construction that enables the tag dispenser to be located in unattended locations. The tag dispenser can, even with very simple construction, dispense a large number of tags between being restocked. Simple motions may be used to retrieve an individual tag for programming, move the tag to a programming station, and then route the tag to a dispensing portion of the tag dispenser or to a storage area for defective tags.