RFID Tire Data Management via Intermediate Unit
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Solution Overview
Problem
Equipping each wheel module of a motor vehicle with RFID marker reading means is costly, especially for vehicles with many wheels, as it requires multiplying the equipment across numerous wheels.
Innovation Solution
Implementing a method where data from an RFID marker is transmitted to a wheel module via an intermediate unit separate from the vehicle and wheel assembly, which stores and manages this data, erasing it when tire pressure falls below a threshold to avoid retaining expired data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each wheel module is equipped with RFID marker reading means, then data transmission from RFID marker to wheel module is enabled, but the cost increases significantly due to multiplying equipment across numerous wheels
Solution Approach 1:
The patent introduces a central reader as an intermediary device that reads RFID markers and transmits data to wheel modules via radio frequency communication. This eliminates the need for each wheel module to have its own RFID reading means, thereby reducing equipment multiplication while maintaining data transmission capability. The central reader acts as a mediator between the RFID marker and the wheel module, enabling data exchange without direct RFID reading capability in the wheel module itself.
2Ease of operation
If RFID reader equipment is integrated into each wheel module, then autonomous data reading is achieved, but the cost multiplies by the number of wheels in the vehicle
Solution Approach 1:
The central reader is designed to serve multiple wheel modules simultaneously, performing the function of reading RFID markers for numerous wheels from a single location. This multi-functional approach allows one reader to replace many individual readers, reducing the total equipment quantity while maintaining autonomous data reading capability across all wheels through centralized operation.
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 approach allows for centralized data management across multiple vehicles, reducing the need for RFID reader integration in each wheel module and minimizing costs by using a single intermediate unit for data transmission between RFID markers and wheel modules.
Implementation Method 1
the wheel module comprises at least one pressure sensor of the tyre
Implementation Method 2
The wheel module is intended to communicate by radio frequency with a TPMS unit
Data Source
AI summary
A method is provided to manage data transmitted between an RFID marker, which is mounted on a tire, and a wheel module, which is mounted on a rim. The wheel module includes a memory and at least one sensor. When the tire is mounted on the rim, a mounted assembly is formed, also known as a wheel, which is intended to be installed on a motor vehicle. According to the method, RFID data is transmitted between the RFID marker and the wheel module via an intermediate unit that is separate from the mounted assembly and the motor vehicle. The RFID data is stored in the memory of the wheel module. When the wheel module includes a sensor for detecting tire pressure, the RFID data stored in the memory of the wheel module is erased when a detected tire pressure is less than or equal to a predetermined pressure threshold.