Plug-in Encoding Memory for Tire Pressure Monitoring
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Solution Overview
Problem
Current tire pressure monitoring systems face challenges in efficiently identifying and re-identifying tires during rotation and replacement, leading to incorrect data display and complex installation processes, particularly due to the reliance on fixed encoding methods, low-frequency signals, and complex antenna layouts.
Innovation Solution
The system employs a plug-in external encoding memory with a fixed ID code for each transmitting and detecting unit, allowing easy re-identification by resetting the ID code relationship when tires are rotated or replaced, using a simple plug-in method that avoids radio signal disturbances and complex antenna layouts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed encoding methods are used in tire pressure monitoring systems, then tire identification can be maintained, but the system becomes complex and difficult to re-identify when tires are rotated or replaced
Solution Approach 1:
The system divides the encoding function into separate external encoding pieces that can be independently removed and repositioned. Each encoding piece is associated with a specific tire position, allowing the encoding to be segmented and reorganized when tires are rotated or replaced, simplifying the re-identification process while maintaining reliability
Solution Approach 2:
The external encoding pieces serve multiple functions: they provide tire identification, enable easy re-identification when tires are rotated or replaced, and can be universally applied to different tire positions. This multi-functionality reduces system complexity while maintaining reliable identification
2Measurement precision
If low-frequency signals and complex antenna layouts are used for tire identification, then identification can be achieved, but the installation process becomes complex and prone to errors
Solution Approach 1:
The system replaces complex electromagnetic signal-based identification (low-frequency signals and antenna layouts) with a simple mechanical plug-in encoding system. The external encoding pieces are physically plugged into the monitoring unit, providing accurate identification through mechanical connection rather than complex electromagnetic fields, thereby simplifying installation and reducing errors
Solution Approach 2:
The encoding function is extracted from the main monitoring system and placed in separate external encoding pieces. This extraction eliminates the need for complex antenna layouts and low-frequency signal transmission, simplifying the installation process while maintaining accurate tire identification through the physical presence of the encoding pieces
3Measurement precision
If ID code resetting is required during tire rotation, then accurate data display can be maintained, but the process becomes time-consuming and complex
Solution Approach 1:
The external encoding pieces are pre-configured with the correct encoding for each tire position before installation. When tires are rotated or replaced, the user simply plugs in the corresponding encoding piece for the new position, and the correct ID is immediately recognized without requiring any resetting or programming time, thus maintaining accurate data display while eliminating time loss
Data Source
AI summary
An automobile tire pressure monitoring system and tire identification method that includes a transmitting and detecting unit provided on each tire, as well as a receiving and display unit that includes a receiving unit, a main control unit and a display unit. A plug-in encoding memory is plugged into the receiving and display unit. One fixed ID code, which is the same as that for the encoding memory, is provided for each transmitting and detecting unit. When the power is on, the receiving and display unit reads the ID code in each plug-in encoding memory plugged into the socket of the display unit, and saves the information on the corresponding relationships between ID codes saved in memories and the tire identity. After receiving the signal from the transmission unit, the receiving and display unit reads the ID codes in it, and determines whether these codes are identical with those in the memories. If the signal is valid, the receiving and display unit compares the corresponding relationships, determines on which tire the detection unit is transmitting the signal, and displays the information about pressure and temperature in corresponding display areas.