| ??? 02/28/13 09:17 Read: times |
#189506 - Precision still matters. Responding to: ???'s previous message |
Daniel Jenkins said:
No need for lasers at the start line. The starting line clock is simply a display of the finish line laser's clock. They are electronically set simultaneously in one physical location, then one transported to the start line as simply a display. If I wait 30 seconds after my specified minute, so what. I'll just need to average a slightly higher speed. My actual goal is to cross the finish line on time, not to hold a perfect moving average. There is no trigger at the start line. You get a designated starting time and are scored by your difference between your designated start time and actual finish time as recorded by breaking the beam. - yes, but you still need to lock your clock, to their clock, to well under 20ms, which is why I asked if they are GPS-second qualified. You want to eliminate as many manual steps as possible, or make them human-capable. Thus choosing which second is ok, but fractional seconds are best done outside human response. Daniel Jenkins said:
I can manually resynchronize my setup , but I'll have to do it by sight and manual trigger. Can you apply your own markers, or can you use existing regular ones like telephone or power poles ? Are you allowed items like LCD Glasses ? I make 1 metre ~ 12.427ms, so if you can lock late course markers to well under 1m, you can get under 10ms. |
| Topic | Author | Date |
| Looking for direction - racing application | 01/01/70 00:00 | |
| step by step | 01/01/70 00:00 | |
| First step... | 01/01/70 00:00 | |
| well, you are new | 01/01/70 00:00 | |
| First, check number sizes and precisions | 01/01/70 00:00 | |
| Good catch on the clock accuracy. | 01/01/70 00:00 | |
| Judging | 01/01/70 00:00 | |
| Judging | 01/01/70 00:00 | |
| Rethink your solution | 01/01/70 00:00 | |
| Not sure we're seeing eye to eye... | 01/01/70 00:00 | |
| think precision | 01/01/70 00:00 | |
| Increasing accuarcy | 01/01/70 00:00 | |
| Precision still matters. | 01/01/70 00:00 | |
| Precision distance! | 01/01/70 00:00 | |
| Rulebook on timing | 01/01/70 00:00 | |
| They have a serious system | 01/01/70 00:00 | |
| very imprecise | 01/01/70 00:00 | |
| re: | 01/01/70 00:00 | |
re: speed | 01/01/70 00:00 |