TPMS RFID Pairing Across Regional UHF Frequency Bands
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Solution Overview
Problem
Existing tyre pressure monitoring systems face challenges in communicating with RFID tags in tyres across different frequency bands used in various countries, requiring a device that can activate and read RFID tags while pairing pressure sensors with the on-board computer, ensuring compatibility and compliance with regional frequency regulations.
Innovation Solution
A device with an ultra-high frequency communication module capable of sending and receiving signals on multiple frequency bands (800-1000 MHz) to activate and read RFID tags, featuring adjustable antennas and management circuits to select the appropriate frequency band for regional compatibility, allowing for seamless integration with pressure sensors and on-board computers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single frequency band is used for RFID tags, then the device is simpler and easier to manufacture, but it cannot communicate with RFID tags in different countries that use different frequency bands
Solution Approach 1:
The RFID reader is designed with multiple antennas, each tuned to a different frequency band (e.g., 865-868 MHz for Europe, 902-928 MHz for USA, 920-924 MHz for China). This allows a single device to universally communicate with RFID tags across different countries and frequency regulations without requiring complex switching mechanisms, as multiple frequency capabilities are built into the device architecture from the start.
2Adaptability or versatility
If multiple antennas are used to cover different frequency bands, then global compatibility is achieved, but the device size and cost increase
Solution Approach 1:
Multiple antennas for different frequency bands are integrated into a compact housing structure where components are nested or closely packed. The antennas may be arranged in a space-efficient configuration, with smaller antennas positioned within the overall device footprint, allowing global frequency compatibility while minimizing the increase in device volume.
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
Enables effective communication with RFID tags across different frequency bands, ensuring proper tyre management and safety features, while adhering to regional frequency regulations, facilitating global compatibility and efficient data transmission.
Implementation Method 1
an ultra-high frequency communication module configured to communicate with radio-frequency tags... configured to send and receiving signals on multiple frequency bands (800-1000 MHz) to activate and read RFID tags
Data Source
AI summary
A tool device for use with a motor vehicle tire pressure monitoring system (TPMS) operable to send and receive signals to a TPMS tire pressure sensor and a radio frequency identification (RFID) tag positioned in a vehicle tire. In one example, the tool is operable to communicate with the RFID tag to receive information from the RFID tag through an ultra-high frequency communication module and send that received RFID tag information to the tire pressure sensor for storage on the tire pressure sensor. The tool may then retrieve the tire pressure sensor information and associated RFID tag information from the sensor and transmit that information to the motor vehicle on-board computer.