Tire Fitting System Aligns RFID Tags to Air Valves
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Solution Overview
Problem
In heavy-duty vehicles, the close proximity of RFID tags on tires can cause interference with radio frequency transmissions, making it difficult to read sensor data from tire sensors and RFID tags unambiguously.
Innovation Solution
A tire fitting system that determines the location of RFID tags on tires and air valves on rims, calculates the distance between them, and provides instructions for aligning the tire on the rim to ensure the RFID tag is close to the air valve, thereby reducing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple RFID tags are placed close together on adjacent tires, then tire identification capability is improved, but radio frequency transmission interference increases
Solution Approach 1:
The system determines the locations of RFID tags on tires and air valves on rims before assembling the wheel on the vehicle. By calculating the distance between RFID tags in advance and providing alignment instructions, the system prevents interference issues from arising in the first place, rather than attempting to resolve them after assembly.
Solution Approach 2:
The tire fitting system acts as an intermediary between the RFID tags and the reading device. It coordinates the positioning of RFID tags relative to air valves, ensuring optimal spacing is maintained. This intermediary system manages the spatial relationships to prevent harmful interference while preserving identification capability.
2Reliability
If RFID tags are positioned far apart to reduce interference, then radio frequency transmission clarity is improved, but tire identification accuracy deteriorates
Solution Approach 1:
The system optimizes the spatial parameter (distance) between RFID tags by positioning them relative to air valves on the rim. This parameter adjustment ensures tags are neither too close (causing interference) nor too far (reducing identification accuracy), achieving an optimal balance through controlled positioning.
3Ease of operation
If manual alignment of tire and rim is used, then assembly flexibility is maintained, but alignment precision between RFID tag and air valve deteriorates
Solution Approach 1:
The system provides feedback by calculating the distance between RFID tags and air valves, then generating alignment instructions based on this information. This feedback loop guides the alignment process, ensuring precise positioning while maintaining operational simplicity through automated guidance.
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 clear and unambiguous sensor readings by minimizing the distance between RFID tags on adjacent tires in twin wheel assemblies, improving the accuracy of tire and rim identification.
Implementation Method 1
The sensor data transmitted from these tire sensors may comprise, for example, tire pressures, tire temperatures, tire deformations, the identities of the sensors, etc. These types of systems are conventionally referred to as Tire Pressure Monitoring Systems, TPMS, or Tire Health Systems, THS. These systems also normally employ radio frequency transmissions for transmitting its sensor data
Implementation Method 2
determining a location of a Radio Frequency Identification, RFID, tag on the tire of the wheel
Data Source
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AI summary
A tire fitting system and a method therein for assisting in fitting a tire on a rim of a wheel prior to assembly of the wheel on a vehicle is provided. The tire fitting system comprising a processing circuitry configured to determine a location of a RFID tag on the tire of the wheel, determine a location for an air valve on the rim of the wheel, determine the distance between the location of the RFID tag and the location for the air valve on the rim, and provide instructions for aligning the tire on the rim based on the determined distance between the location of the RFID tag and the location for the air valve on the rim. A computer program product and a carrier is also provided.