Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
Daniel Jenkins
02/28/13 11:37
Read: 865 times
United States

#189515 - Rulebook on timing
Responding to: Oliver Sedlacek's previous message
From the rulebook:

The Silver State Classic Challenge, Inc will be providing Timing & Scoring for you at the events.


The equipment consists of 4 Arbiter GPS Receiver/Clocks tied to 4 computers to supply extremely accurate Time-of-Day from the U.S. GPS Satellite Network. A 5th computer is used to provide totally independent, manually generated, average speeds as a back up to the double redundant electronic system. A GPS synchronized atomic clock with large LED numbers will be on display at the starting line to signal the start of the event for each participant. Infra-red beams will record car passage at the Finish Line on two additional independently operating computers. The GPS Time-of-Day is automatically updated from the GPS Receiver/Clocks each time a car starts or passes through the infra- red beam.


As each car is in position, ready to start, the atomic clock will display the accurate GPS time. You will be signaled to start your time at the top or bottom of the next minute. When the clock reaches this time, this is your start time to be recorded by the computer. YOUR ELAPSED TIME HAS BEGUN! At the Finish Line, the GPS Time-of-Day will be recorded by the breaking of the infra-red beam. The precise location of the infra-red emitters will be clearly marked with large red traffic cones at the Finish Line Banner, Mile Marker 7, in Lincoln County. The start and finish times will be automatically computed to provide the elapsed time, average speed, and variance for each participant.


Does this mean I should be able to tap into their time via GPS signal?

The distance error can be addressed with a manual reset a few miles out on the last straight. I can use any existing landmarks, but I believe adding your own is frowned upon.

List of 19 messages in thread
Looking for direction - racing application      Daniel Jenkins      02/22/13 23:46      
   step by step      Erik Malund      02/23/13 06:29      
      First step...      Daniel Jenkins      02/23/13 11:20      
         well, you are new      Erik Malund      02/23/13 13:08      
         First, check number sizes and precisions       Jim Granville      02/23/13 15:51      
            Good catch on the clock accuracy.      Daniel Jenkins      02/24/13 01:10      
               Judging      J. Guy      02/25/13 11:17      
                  Judging      Daniel Jenkins      02/26/13 12:25      
                     Rethink your solution      J. Guy      02/27/13 11:04      
                        Not sure we're seeing eye to eye...      Daniel Jenkins      02/27/13 20:16      
                     think precision       Jim Granville      02/27/13 13:44      
                        Increasing accuarcy      Daniel Jenkins      02/27/13 20:28      
                           Precision still matters.      Jim Granville      02/28/13 02:17      
            Precision distance!      Oliver Sedlacek      02/28/13 05:09      
               Rulebook on timing      Daniel Jenkins      02/28/13 11:37      
                  They have a serious system      Jim Granville      02/28/13 13:09      
   very imprecise      Erik Malund      02/28/13 13:37      
      re:      Jacob Boyce      02/28/13 14:52      
         re: speed      Daniel Jenkins      02/28/13 16:45      

Back to Subject List