Knowledgebase
Time and Timestamping
Posted by Bill Parker-Jervis on 06 Nov 2015 15:07:33. (Updated: Nov 6, 2015)

All data logged and used within the VisualSoft Suite has a timestamp. This is used to link different types of data, such as linking Cross-Profiles or Events to Position data.

The system is designed to store data with a UTC timestamp, but it allows you to display the data using Local Time.

Time is taken from a "Time Sync Source", which is outside the VisualSoft software.

 

The time source may be one of the following:

  • A network time-server application, maintaining a standard time across the network, and setting all PC clocks to be identical.
  • A time signal via the network from an online navigation system (to VisualDVR).
  • A time within a survey data string via serial input or network port (to VisualDVR or VisualData).
  • A single PC clock (configured in the VisualSoft Network Options).

     

Key Considerations:

 

  • Regardless of which time source is used it is important that the user identifies whether this time signal is in UTC or in local time. 
  • It is essential that the Windows clock is configured for the correct local time zone, and that daylight saving settings are correctly configured. 
  • It is very important that every PC is configured with the same settings.

     

ONLY ONE TIME SYNC SOURCE SHOULD BE ENABLED AT ANY GIVEN TIME ACROSS THE WHOLE VISUALSOFT NETWORK.