TPMS Protocol Switching for Reliable Diagnostic Connection
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Solution Overview
Problem
The rapid change in vehicle models and upgrades makes it difficult for existing diagnostic devices to establish a communicable connection with tire pressure monitoring systems due to mismatches in protocol correspondences, leading to connection errors.
Innovation Solution
A method and apparatus that adaptively determine and load candidate protocol configurations sequentially until a usable configuration is found, allowing for a communicable connection with the tire pressure monitoring system, which includes calculating and generating configuration signs, loading and verifying these configurations, and establishing a connection based on the effective protocol.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a default protocol correspondence is used to establish communication with the tire pressure monitoring system, then the device complexity is reduced, but the connection reliability deteriorates due to protocol mismatches caused by rapid vehicle model changes
Solution Approach 1:
The patent implements a dynamic protocol selection mechanism where the diagnostic device automatically tries multiple protocol configurations in sequence rather than relying on a static default protocol. The system dynamically adapts to different vehicle models and tire pressure monitoring systems by testing protocol configurations until a successful connection is established, thereby maintaining connection reliability without significantly increasing device complexity
Solution Approach 2:
The patent changes the protocol configuration parameters by maintaining multiple protocol configurations (first, second, and third protocols) with different correspondence relationships between vehicle models and protocols. The system selectively applies different protocol configurations based on connection success, allowing it to adapt to rapid vehicle model changes while keeping the device structure relatively simple
2Reliability
If multiple protocol configurations are loaded and tested sequentially to ensure connection success, then the connection reliability is improved, but the time consumption increases due to iterative loading and verification
Solution Approach 1:
The patent performs preliminary actions by pre-loading multiple protocol configurations into the device memory before actual connection attempts. This allows the system to quickly switch between protocols during connection establishment without time-consuming loading operations, reducing the time penalty while maintaining high connection reliability
Solution Approach 2:
The patent implements a skip mechanism where the system quickly attempts connections using different protocol configurations in sequence and skips failed attempts rapidly. The verification process is optimized to fail-fast when a protocol doesn't work, allowing the system to rush through unsuccessful configurations and quickly establish connection with the correct protocol, minimizing overall time consumption
Data Source
AI summary
The present invention relates to a method for establishing a communicable connection with a tire pressure monitoring system, an apparatus thereof and an electronic device. The method includes: determining several candidate protocol configurations; loading the candidate protocol configurations one by one until at least one usable configuration is determined, the usable configuration being a protocol configuration with which a communicable connection with the tire pressure monitoring system can be established; and establishing a communicable connection with the tire pressure monitoring system based on the usable configuration. By applying the method for establishing a communicable connection with a tire pressure monitoring system, a success rate of a diagnostic device entering a tire pressure monitoring system is improved without increasing hardware device costs. Connection errors do not occur frequently, thereby providing better user experience.