RFID Fuel Dispenser Verification System
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Solution Overview
Problem
Current methods for preventing misfuelling at fuel stations are unreliable and prone to human error, failing to account for various fuel types and often rely on visual or magnetic cues that can be ignored or missed, leading to potential engine damage and environmental hazards.
Innovation Solution
An RFID-based system that uses a tag on the vehicle and fuel dispenser to transmit and detect radio signals representing the correct fuel type, with a determining unit and alarm system to ensure only the appropriate fuel is dispensed, incorporating a passive power source and fail-safe mechanisms to prevent incorrect fueling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If color-coded systems and visual labels are used to distinguish fuel types, then ease of operation is improved, but reliability deteriorates due to human error and inability to account for various fuel types
Solution Approach 1:
The patent replaces visual identification systems (color codes, labels) with an RFID-based electronic identification system. The RFID tag on the fuel dispenser and reader in the vehicle automatically exchange data to verify fuel type compatibility, eliminating human error in visual identification while maintaining ease of operation through automatic verification.
Solution Approach 2:
The patent introduces an RFID tag as an intermediary carrier of fuel type information. Instead of relying on direct visual perception by the user, the RFID tag stores and transmits fuel type data electronically, serving as a reliable mediator between the fuel dispenser and the vehicle's fuel management system.
2Measurement precision
If magnetic strips and sensors are used for fuel type identification, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent employs RFID technology which serves multiple functions: it identifies fuel type, verifies compatibility, and can potentially store additional fuel information. This single RFID system replaces multiple separate identification mechanisms (magnetic strips, color codes, labels), reducing overall system complexity while maintaining or improving identification accuracy.
Solution Approach 2:
The patent replaces magnetic strip-based identification with RFID technology, which uses electromagnetic fields rather than physical magnetic contact. This substitution maintains measurement precision for fuel type identification while simplifying the physical interaction between the dispenser and vehicle components.
3Reliability
If manual verification by technicians is implemented, then reliability is improved, but loss of time increases
Solution Approach 1:
The patent implements a self-verifying system where the RFID tag and reader automatically exchange data to confirm fuel type compatibility without requiring technician intervention. The system performs verification autonomously during the refuelling process, maintaining reliability through automatic validation while eliminating the time loss associated with manual checks.
Solution Approach 2:
The RFID verification occurs automatically at the beginning of the refuelling process before fuel is dispensed. This preliminary automatic verification prevents the need for later manual intervention, saving time while ensuring reliability through pre-confirmation of fuel type compatibility.
4Reliability
If RFID tags are placed on both vehicle and fuel dispenser, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent combines the RFID tag and reader functions into a unified communication system between the fuel dispenser and vehicle. By placing RFID tags on both components and enabling automatic data exchange, the system creates a merged verification mechanism that improves reliability through mutual authentication while the integrated design prevents excessive complexity multiplication.
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 provides a reliable and human-error-free method to prevent misfuelling, ensuring the correct fuel is selected and reducing the risk of engine damage and environmental contamination by using a wireless, interference-free RFID communication that physically prevents incorrect fueling.
Implementation Method 1
an RFID tag which is adapted to emit a radio signal, and is disposed on one of the vehicle and the fuel providing means
Implementation Method 2
a radio receiving means disposed on the other of the vehicle and the fuel providing means, and adapted to detect the radio signal emitted by the RFID tag
Data Source
AI summary
An apparatus and method for distinguishing the correct type of fuel to be disposed in a vehicle (4) is provided. The apparatus includes an RFID tag (40) disposed on one of a vehicle (4) or a fuel providing means (2), and a radio receiving means (42) disposed on the other of the vehicle (4) or fuel providing means (2). A signal, indicative of a type of fuel, is emitted by the RFID tag (40) and compared with a predetermined radio signal stored in a storage means (41), and a warning is generated on the basis of a determination of correspondence between the detected radio signal and predetermined radio signal. The present invention therefore provides a safe and reliable system that removes or reduces human decision from a refuelling process, and ensures the correct fuel is provided to the vehicle (4).