Time Synchronization Method for Vehicle Terminal Systems
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Solution Overview
Problem
Existing time synchronization systems are inefficient and not compatible with vehicle applications, leading to slow synchronization speeds and resource wastage due to unnecessary waiting steps.
Innovation Solution
A method for time synchronization that acquires target information including preset mode information, determines a target mode, selects a first synchronous clock as a clock source, and generates a control instruction for devices to synchronize according to the clock, allowing for rapid and accurate synchronization in various application scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the standard time synchronization system is used with multiple waiting steps, then the synchronization is performed according to standard protocol, but the synchronization time is slow and time consumption is large
Solution Approach 1:
The system performs preliminary actions by pre-determining the clock source device before the actual time synchronization process. The processor identifies and selects which device will serve as the clock source in advance, eliminating the need for multiple waiting steps during the synchronization process itself. This preliminary determination of the clock source device allows the system to skip time-consuming discovery and selection phases, directly proceeding to the synchronization execution phase.
2Reliability
If the standard time synchronization system with multiple waiting steps is used, then the synchronization process is complete, but the processing efficiency is low
Solution Approach 1:
The invention extracts and removes the unnecessary waiting steps from the standard time synchronization protocol. By identifying that the vehicle terminal system already has predetermined device roles and clock source configurations, the system extracts only the essential synchronization execution step, discarding the time-consuming waiting and selection steps. This extraction of the core functionality while removing redundant operations significantly improves processing efficiency while maintaining synchronization completeness.
3Reliability
If the standard time synchronization system is used, then all devices can be synchronized, but a large amount of time is consumed and efficiency is low
Solution Approach 1:
The system performs preliminary identification of the clock source device before initiating the time synchronization process. The processor determines which device will serve as the time reference in advance, based on pre-configured device roles and capabilities. This preliminary action eliminates the need for time-consuming discovery protocols and multiple waiting periods, allowing all devices to synchronize quickly to the predetermined clock source while maintaining complete synchronization coverage across the vehicle terminal system.
Data Source
AI summary
A method for time synchronization, includes: acquiring target information including preset mode information; determining a target mode according to the preset mode information; determining a first synchronous clock as a clock source, in the target mode; and generating a first control instruction for controlling a device waiting for the time synchronization to perform the time synchronization according to the first synchronous clock.