A high-precision clock synchronization method of dual crystal oscillator fused with AI temperature compensation
By using a dual-crystal structure and AI temperature compensation algorithm, combined with an adaptive clock synchronization algorithm and GPS time reference, the problems of large clock synchronization error and frequency drift in traditional nodal seismographs have been solved, achieving high-precision clock synchronization and ensuring the reliability and integrity of seismic data acquisition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- RES INST OF COAL GEOPHYSICAL EXPLORATION
- Filing Date
- 2026-04-02
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional nodal seismographs have large clock synchronization errors, and the crystal oscillator frequency drifts due to temperature, making it impossible to achieve high-precision clock synchronization, resulting in a high risk of data loss during seismic data acquisition.
By employing a dual-crystal oscillator structure and combining AI temperature compensation algorithm and adaptive clock training algorithm, the clock signal is dynamically adjusted by real-time monitoring of ambient temperature and frequency drift. GPS time is used as the absolute reference for error compensation, and Kalman filtering algorithm is used for dynamic estimation and smoothing. A three-dimensional quality control system is constructed for real-time monitoring.
This achieved high synchronization among nodes within the sampling interval, reduced the risk of data loss, improved the reliability and integrity of seismic acquisition data, ensured the stability and accuracy of the clock, and reduced construction time and costs.
Smart Images
Figure CN122419451A_ABST