This invention provides a high-precision synchronization and dynamic reconstruction control method and
system for
time synchronization signals, belonging to the field of
time synchronization technology. The invention receives external
time synchronization signals and performs level conversion and validity judgment. For valid / invalid scenarios, a weighted fusion
algorithm / internal
clock self-excitation is used to generate a master time base
signal, improving synchronization reliability and accuracy. Based on the master time base
signal, a precise
timestamp is generated and periodically distributed via
multicast messages. Combined with local
clock closed-loop compensation and precise
delay measurement on the service board,
transmission delay is reduced,
delay errors are eliminated, and the board and master time base are precisely aligned. The
system monitors the time synchronization input source and VPX slot board status in real time, switching to a
backup source and recalculating the fusion
algorithm for failure scenarios, and dynamically loading time synchronization service logic for hot-swappable devices to achieve dynamic
system reconstruction. Finally, a distributed output
signal is generated after level conversion and distributed to the terminal, achieving high-precision synchronization and stable and reliable distribution of time synchronization signals under the VPX architecture.