Method, device, equipment and storage medium for global navigation satellite system time synchronization

A device for global navigation satellite system time synchronization, comprising:

• a data packet of NMEA protocol receiving module, configured to receive a data packet of NMEA protocol, read a valid UTC time from the data packet of NMEA protocol, and store the read valid UTC time in a time synchronization controller;
• a PPS signal receiving module, configured to receive a PPS signal, capture a local time output by a local clock at a time when the PPS signal is generated, and store the local time in the time synchronization controller;
• a time matching module, configured to, when the time synchronization controller receives the current local time, read a last local time stored before the current local time and read the stored latest UTC time as a UTC time corresponding to the last local time;
• and
• a local clock synchronization module, configured to determine, by the time synchronization controller, a local time correction amount according to the last local time and the UTC time corresponding to the last local time, and correct the local clock according to the local time correction amount.