Wheel Identification via Signal Strength Attenuation
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Solution Overview
Problem
Conventional tire inflation pressure detecting apparatuses cannot accurately identify the wheel location of transmitters without manual ID signal registration and are prone to errors due to external interference, requiring time-consuming updates as tire positions change.
Innovation Solution
A wheel identifying apparatus using transceivers with variable receiver sensitivity and a triggering device to transmit trigger signals at different strengths, allowing the receiver to identify wheel locations based on signal strength or reception time, eliminating the need for manual ID registration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual ID signal registration is used to identify transmitter locations, then wheel identification accuracy is improved, but the system complexity and time consumption increase
Solution Approach 1:
The system performs automatic wheel identification without requiring manual ID signal registration. The receiver autonomously determines transmitter locations by analyzing signal strength variations and reception timing, eliminating the need for manual configuration and reducing system complexity.
Solution Approach 2:
The patent replaces the manual mechanical process of ID signal registration with an automatic electronic detection system. The receiver uses signal processing techniques to automatically identify wheel positions based on physical signal characteristics, substituting manual operations with automated electronic measurement.
2Measurement precision
If manual ID signal registration is used to identify transmitter locations, then wheel identification accuracy is improved, but the time consumption increases
Solution Approach 1:
The system performs automatic wheel identification without requiring manual ID signal registration. The receiver autonomously determines transmitter locations by analyzing signal strength variations and reception timing, eliminating the need for manual configuration and reducing system complexity.
Solution Approach 2:
The system performs wheel identification automatically as part of the normal operation process, rather than requiring a separate manual registration step beforehand. The identification happens concurrently with signal reception, eliminating time loss.
3Device complexity
If transmitters transmit pressure signals without location identification, then the device simplicity is improved, but the ability to determine tire locations deteriorates
Solution Approach 1:
The receiver analyzes feedback information contained in the pressure signals, specifically signal strength and reception timing, to determine transmitter locations. This allows the system to maintain device simplicity while recovering location information through intelligent signal processing.
Solution Approach 2:
The system uses changes in signal parameters (strength and timing) to encode location information. By measuring how these parameters vary across different receivers, the system can identify wheel positions without adding complex identification hardware to the transmitters.
4Device complexity
If the receiver cannot distinguish between internal and external transmitters, then the system simplicity is improved, but the reliability of tire pressure detection deteriorates
Solution Approach 1:
The receiver analyzes feedback information contained in the pressure signals, specifically signal strength and reception timing, to determine transmitter locations. This allows the system to maintain device simplicity while recovering location information through intelligent signal processing.
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 automatic and accurate identification of tire locations and inflation pressures without manual ID registration, improving efficiency and reducing errors caused by external interference.
Implementation Method 1
a triggering device transmitting a trigger signal to the transceivers, the triggering device being located on a body of the vehicle at different distances from the transceivers, so that strengths of the trigger signal at the transceivers are different from each other
Implementation Method 2
a first and a second transceiver which are respectively located on a first and a second wheel of a vehicle, each of the transceivers working to receive a trigger signal and transmit a response signal in response to receipt of the trigger signal
Data Source
AI summary
A wheel identifying apparatus according to the present invention includes a plurality of transceivers, a triggering device, a receiver, and a wheel identifier. Each of the transceivers is located on one of a plurality of wheels of a vehicle and works to receive a trigger signal and transmit a response signal in response to receipt of the trigger signal. The triggering device is located on a body of the vehicle at different distances from the transceivers and works to transmit the trigger signal. The receiver works to receive the response signals transmitted by the transceivers. The wheel identifier is operatively connected to the receiver and works to identify, for each of the response signals received by the receiver, the wheel on which the transceiver having transmitted the response signal is located using the fact that strengths of the trigger signal at the transceivers are different from each other.