AGTEK R & D Wiki

The following statistics are computed from various track. The meanings and definitions of each statistic is as follows:

• Track_Line: The connected line of locations along a single track
• Travel: The total length of the track from the first point to the last point.
• Cycle_Count: (Track_Line/Track intersections) / 2
• Cycle_Time: Same as Moving_Time
• Avg_Seconds_Per_Cycle: Cycle_Time / Cycle_count
• Moving_Time: The time during which a vehicle moves during the entire day.
• Average_Speed: Travel / Moving_Time
• Average_Cycle_Length: Travel / Cycle_Count
• Average_Move_Time: Moving_Time / Cycle_Count
• Working_Time: Defined value of
  1. Morning_Start_Time
  2. Morning_End_Time
  3. Afternoon_Start_Time
  4. Afternoon_End_Time
• Cost_Hours: Total Working_Time for the day
• Minutes_Per_Hour: Cycle_Time / Cost_Hours

Notes:

• Lengths are computed by linear X-Y projected distances between adjacent track points. (track altitude is ignored)
• If Working_Time is not defined, Morning_Start == Track_Start, Afternoon_End == Track_End, no lunch period.
• The “Moving” (for Moving_Time) is defined as:
  • time between adjacent points < 3 seconds AND
  • velocity between points > 0.5 FP

Example loop to calculate moving time and moving distance:

   // Uses some trackwork conventions for methods, reader is encouraged to translate 
   // to the appropriate idiom for their environment.
   
   //
   // Points are assumed to be order in time such that time(pt[0]) < time(pt[1])
   //
   int movingTime = 0;
   float movingDistance = 0.0;
   
   for( int i = 1; i < GetNPoints(); i++ )
   {
      CAgVertex v1 = GetAgVertexAt(i);
      CAgVertex prev = GetAgVertexAt(i-1);

      time_t seconds = GetUTCTimeAtIndex(i).GetTimeT();
      time_t prevSeconds = GetUTCTimeAtIndex(i-1).GetTimeT();

      float distanceDelta = v1.Distance(prev);
      int prevTimeDelta  = CAgTime::GetTimeDifferenceSeconds(GetUTCTimeAtIndex(i), GetUTCTimeAtIndex(i-1));
      float tmpspeed = (prevDelta > 0) ? distance/prevDelta : 0;
			
      if( (prevDelta < idleTime) && (tmpspeed > idleFPS) )
      {
         movingTime += prevTimeDelta;
         movingDistance += distanceDelta;
      }
      
      printf( "Moving seconds: %d\n", movingTime );
      printf( "Moving feet   : %d\n", movingDistance );
   }