TPMS Menu Interface Positioning via RF Protocol Verification
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Solution Overview
Problem
The accuracy of positioning the function menu interface of an automobile tyre pressure monitoring system is compromised due to redundant and erroneous user input of vehicle information, leading to potential safety hazards.
Innovation Solution
A method and apparatus using a tyre pressure monitoring assistance tool with a radio frequency unit and OBD interface to simulate radio frequency communication protocols, verify sensor identification codes, and match simulation measurement data with recorded data to accurately determine the actual communication protocol, thereby displaying the correct function menu interface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If user inputs detailed vehicle information to position the function menu interface, then the interface can be displayed, but input errors occur leading to inaccurate positioning
Solution Approach 1:
The system automatically acquires vehicle information through the OBD interface and autonomously determines the radio frequency communication protocol through simulation and verification, eliminating the need for manual user input and thereby preventing input errors that would compromise positioning accuracy
Solution Approach 2:
The system employs a feedback mechanism where the simulated radio frequency signal is sent to the tyre pressure monitoring unit, the response is read through the OBD interface, and the recorded measurement data is compared with simulation data to verify and confirm the actual communication protocol, ensuring accurate interface positioning
2Loss of information
If redundant vehicle information is required for interface positioning, then comprehensive vehicle details are obtained, but error probability increases
Solution Approach 1:
The system automatically retrieves comprehensive vehicle information including vehicle identification, tyre pressure, and temperature data through the OBD interface without requiring user input, thereby obtaining complete information while eliminating human error
Solution Approach 2:
The manual information input process is replaced with automated electronic data acquisition through the OBD interface, substituting the mechanical action of user input with an automated electronic system that retrieves and processes vehicle information
Data Source
AI summary
A method for displaying a function menu interface of an automobile tyre pressure monitoring system includes: determining a candidate radio frequency communication protocol of the tyre pressure monitoring unit according to the vehicle information of an automobile; by means of the radio frequency unit simulating the candidate radio frequency communication protocol, sending a radio frequency signal to the tyre pressure monitoring unit, the radio frequency signal comprising simulation measurement data: if recorded measurement data is read out from the tyre pressure monitoring unit by means of the OBD interface, and the recorded measurement data is the same as the simulation measurement data, then determining that the candidate radio frequency communication protocol is the actual radio frequency communication protocol of the tyre pressure monitoring unit; and displaying the function menu interface of the tyre pressure monitoring system according to the actual radio frequency communication protocol.