Digital Vehicle Key Synchronization for Consistent Key Creation States
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Solution Overview
Problem
Existing Bluetooth digital vehicle key systems face inconsistencies in key states among vehicle, mobile phone device, and vehicle factory cloud, leading to reduced user experience due to communication errors and inability to initiate new key creation requests.
Innovation Solution
A method for digital vehicle key synchronization involving a cloud server that monitors and synchronizes key creation states across vehicle, user terminal, and factory cloud, includes mechanisms for key deletion, overwriting, and blacklisting to ensure consistent key states and improve user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the vehicle factory cloud waits for key creation state from the mobile phone device, then key creation consistency is maintained, but new key creation requests are blocked and user experience deteriorates
Solution Approach 1:
The system performs preliminary actions by having the vehicle terminal proactively send key creation state information to the cloud server as soon as it is generated, without waiting for the mobile phone to complete its key creation process. This allows the cloud to advance the key creation state synchronization, enabling new key creation requests to be processed immediately while maintaining consistency through subsequent state matching.
2Device complexity
If the cloud server processes key creation requests sequentially, then system complexity is reduced, but key creation time increases
Solution Approach 1:
The key creation process is segmented into independent state information packets that are transmitted separately between the vehicle terminal, mobile phone, and cloud server. Each terminal sends its key creation state information independently, allowing the cloud to process multiple key creation requests in parallel rather than sequentially, thereby reducing overall key creation time without significantly increasing system complexity.
3Measurement precision
If the system implements comprehensive key state monitoring, then key synchronization accuracy is improved, but information processing load increases
Solution Approach 1:
The system extracts only the essential key creation state information from each terminal and transmits only this extracted data to the cloud server for matching and processing. By taking out only the necessary state information rather than transmitting complete key data or extensive monitoring logs, the system achieves accurate key state synchronization while minimizing information processing load and energy consumption.
Data Source
AI summary
A method for digital vehicle key synchronization includes: monitoring first owner key creation state information matching vehicle key creation state information based on the vehicle key creation state information sent by a vehicle terminal; receiving an owner key creation request sent by a first user terminal before receiving the first owner key creation state information, and determining target owner key information based on the owner key creation request; and sending the target owner key information to the vehicle terminal, in which the target owner key information is configured to indicate the vehicle terminal to overwrite first owner key information corresponding to the vehicle key creation state information based on the target owner key information.