Rubber Patch Mounting Passive RFID Tag for Tire Identification
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Solution Overview
Problem
Existing tire monitoring systems face challenges in ensuring accurate identification and long-term data association with specific tires, particularly for large tires used in civil engineering machinery, due to fragile components and complex integration processes, which lead to errors and increased costs.
Innovation Solution
A rubber patch with a passive RFID tag and an active electronic module is integrated into the tire's internal surface, allowing for controlled attachment and data association, protecting against harsh environments and enabling efficient data transmission without modifying the tire's architecture or manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If sensors are made removable for flexible attachment to different tires, then ease of operation is improved, but reliability deteriorates due to risk of attaching to wrong tires and loss of data association
Solution Approach 1:
An RFID tag is introduced as an intermediary element that is permanently attached to the tire, while the sensor can be removably attached to different tires. The RFID tag mediates the identification and data association, allowing the sensor to be moved between tires without losing track of which tire it is monitoring, thus maintaining both flexibility and reliability
Solution Approach 2:
The mechanical system of permanently fixing sensors to tires is replaced with a combination of removable mechanical attachment plus RFID electronic identification. This substitution allows sensors to be easily removed and reattached while the RFID system ensures continuous accurate identification and data association with the correct tire
2Reliability
If identification elements are integrated into the tire tread, then reliability of identification is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The identification element (RFID tag) is extracted from the tire structure itself and placed on a separate adhesive patch that can be attached to the tire's inner surface. This extraction simplifies the tire architecture by removing the need to integrate fragile electronic components into the complex tire manufacturing process, while maintaining reliable identification functionality
Solution Approach 2:
The identification system is segmented into separate components: the RFID tag on the adhesive patch and the sensor unit. This segmentation allows the identification element to be independently attached and replaced without affecting the tire structure or manufacturing process, reducing overall device complexity while maintaining identification reliability
3Ease of operation
If electrical contacts protrude from the base for sensor attachment, then ease of connection is improved, but reliability deteriorates due to fragility in harsh environments
Solution Approach 1:
The mechanical electrical contact system is replaced with an RFID electromagnetic field-based identification system. The RFID tag and reader communicate wirelessly through electromagnetic fields, eliminating the need for fragile protruding electrical contacts while maintaining ease of connection and significantly improving reliability in harsh construction equipment environments
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 solution ensures accurate tire identification and data association over time, reduces the risk of errors, and is suitable for large tires, maintaining data integrity and reducing industrial complexity and costs.
Implementation Method 1
a passive tire identification label (5) provided under said support face (4), between said bonding face (3) and said support face (4)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
Rubber patch (1) for mounting an active electronic component (10), comprising a base (2) with a substantially planar connecting face (3) intended to be secured to the inner surface of a tyre and an opposite bearing face able to act as a support for said active electronic component (10), characterized in that it comprises, arranged between said two faces (3, 4), a passive label (5) for identifying the corresponding tyre, the label being provided with a memory capable of storing unique identifying data for this tyre. The invention also provides a corresponding tyre monitoring system.