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Daniel Jenkins
02/24/13 01:10
Read: 866 times
Palmdale
United States


 
#189452 - Good catch on the clock accuracy.
Responding to: Jim Granville's previous message
Jim,

Good catch on the accuracy, I may need to be looking for something else...

I am following your logic, but still figuring out the harware and language. I am first, as previously recommended, simply trying to do an LED blinker to get started and build up from there.

I have waypoints measured to the .001 mile, and the last 5 miles are nearly perfectly straight. The course is 95 % perfectly straight, with a 3 mile windy section called the Narrows. I have the ability to do an on-the-fly update to a final waypoint once the corners are done.

Check out this video. http://youtu.be/mkZAT5DymyE The triple display he has on his dash (readable if you play the video in 1080p) displays speed in integers, seconds to the hudredth and miled to the thousandth. The seconds is the number of seconds he is off perfect, which is just a calculation of the raw pulses that I am trying to use. He resets the readouts exactly as the minute ticks over, which would signal his start time. The seconds instantly start climbing rapidly, but slow and then reverse as he passes his target speed of 150 mph. Also, Notice his 3rd display hits 90.000 exactly asw he crossed the finish line.



List of 19 messages in thread
TopicAuthorDate
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      

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