Wireless Tire Pressure Sensor Positioning via Signal Strength Analysis
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Solution Overview
Problem
Conventional tire pressure monitoring systems face challenges such as time-consuming and inconvenient wheel position and sensor serial number burning, signal loss or distortion during wireless transmission, and inability to obtain real-time data from sensors located far from the host computer, especially in large vehicles.
Innovation Solution
A wireless tire pressure monitoring system that includes a wireless tire pressure sensor with a sensing and emitting module, a wireless host with a control and receiving/emitting module, and a wireless receiver with an operation and receiving/emitting module. The system uses signal strength and phase angle analysis to precisely allocate the position of each wireless tire pressure sensor without the need for new sensors or serial numbers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wheel positions and sensor serial numbers are burned to the host computer by manufacturers, then the host computer can distinguish which tire needs maintenance, but the process takes a lot of time and is not convenient for users
Solution Approach 1:
The system enables automatic self-identification of tire positions through the host computer receiving signals from sensors and automatically determining their locations based on signal characteristics, eliminating the need for manual configuration by manufacturers
Solution Approach 2:
The patent replaces the manual burning process with wireless signal transmission and automatic recognition, where the host computer automatically identifies sensor positions through received signals without mechanical intervention
2Ease of operation
If wireless transmission is used for tire pressure monitoring, then the system is more convenient and flexible, but signal loss or distortion may occur during transmission
Solution Approach 1:
The system uses feedback mechanisms where the host computer receives signals from sensors, processes the information, and can send commands back to sensors, ensuring reliable communication through acknowledgment and error checking protocols
Solution Approach 2:
The patent implements redundancy in signal transmission by having multiple sensors transmit to multiple receivers, providing backup pathways that cushion against signal loss or distortion in the wireless medium
3Area of stationary object
If tire pressure sensors are installed far from the host computer in large vehicles, then all tires can be monitored, but the sensors cannot have wireless signals and real-time information cannot be obtained
Solution Approach 1:
The system divides the monitoring function into multiple independent sensor units distributed throughout the vehicle, each capable of autonomous operation and wireless communication, allowing coverage of large areas without compromising signal reliability
Solution Approach 2:
The patent introduces intermediate wireless receivers or relay nodes that can forward signals between distant sensors and the host computer, extending the effective communication range while maintaining signal integrity in large vehicles
4Reliability
If manual burning of sensor information is required, then correct information can be stored, but users have to go back to manufacturers and the process is inconvenient
Solution Approach 1:
The host computer automatically receives sensor information through wireless transmission and performs self-configuration, eliminating the need for users to visit manufacturers for manual information entry while ensuring accurate data storage
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
The system enables precise allocation of tire pressure sensors, reduces the need for manual configuration, minimizes signal interference issues, and ensures real-time data collection from all tire pressure sensors, even in large vehicles.
Implementation Method 1
The wireless tire pressure sensor sends signals to the first receiving/emitting module and the second receiving/emitting module by the emitting module
Implementation Method 2
The first receiving/emitting module and the second receiving/emitting module detect strength of the signals emitted from the wireless tire pressure sensor
Data Source
AI summary
A wireless tire pressure monitoring system and a method for operating the tire pressure monitoring system to locate each wireless tire pressure sensor. The wireless host is connected to the wireless receiver. Each wireless tire pressure sensor sends info to the wireless host and the wireless receiver. The wireless host and the wireless receiver allocate the positions of the wheels where the wireless tire pressure sensors are installed by the info received from wireless tire pressure sensors. The wireless receiver analyses and calculates the received info, and forwards the result to the wireless host to process a cross-comparison to precise allocate the positions of the wireless tire pressure sensors. The method does not need to replace or add new wireless tire pressure sensors, and does not need to obtain new serial numbers. The positions of the wireless tire pressure sensor are precisely allocated by the method of the present invention.