public AvlData(AvlDataPriority priority, DateTime dateTime, GpsElement gps, IoElement data = null)
{
_priority = priority;
_dateTime = dateTime;
_gps = gps;
_data = data;
}
public GpsElementExt(GpsElement gps, IoElement io)
{
_gps = gps;
_io = io;
}