thepest
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| posted on 7/8/08 at 02:16 PM |
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Timing equipment
I'm looking at setting up timing equipment for hillclimb use.
Unfortunately the between the start and the finish there is no line of sight.
Would it be possible to have a form of online system? IE timing with 2 mobile live internet connections?
Or any other idea please?
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phoenix70
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| posted on 7/8/08 at 02:22 PM |
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You could always use two laptops connected via wirless to do this. I take it running a cable is out of the question.
If you need any help I've got some experience with timing systems.
Cheers
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thepest
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| posted on 7/8/08 at 02:24 PM |
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Yes I thought of that but wireless range would not cover it, I'd need to setup a router somewhere midway. Have you done this already? could you
offer me some options?
Thank you
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mackei23b
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| posted on 7/8/08 at 02:25 PM |
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If using RF you could set up a repeater station to get round the 'obstical'.
For example, Startline TX (Frequency1) transmits to intermediary box set to recieve on (Frequency 1) within Line of site of StartLine and relays
signal on (Frequency 2) to the finnish Box that recieves on (Frequency 2).
Hope that makes sence?
Cheers
Ian
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thepest
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| posted on 7/8/08 at 02:26 PM |
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We did the cable thing a few times but in some instances terrain becomes a serious issue, dont fancy upsailing too much!
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Macbeast
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| posted on 7/8/08 at 02:26 PM |
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Depends how accurate you want it to be. Anything digital has inherent delay built in - several seconds in case of some digital transmissions.
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thepest
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| posted on 7/8/08 at 02:28 PM |
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Well some routers are down to 10ms with a good signal so that should be suitable enough.
What about software? is there anything that could be used out there?
Has anyone done this before?
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tegwin
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| posted on 7/8/08 at 02:29 PM |
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Can you not use a couple of race data loggers...pop them on the floor of the car, after each race, plug them into a PC and look to see how long it
takes between the initial hard acceleration and the final hard decceleration?
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bilbo
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| posted on 7/8/08 at 02:29 PM |
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I'm not an expert on this sort of stuff, but I do know you can get GPS based lap timers which require no track side equipment - perhaps these
can be configured for hill climbs as well?
---------------------------------------
Build Diary: http://bills-locost.blogspot.com/
Web Site: http://locost.atspace.com
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thepest
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| posted on 7/8/08 at 02:31 PM |
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That would become expensive because I would need a setup on each car. We already have the lights setup but the transmission range due obstacles is a
problem.
This is going to be a land based setup not a car based setup.
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BenB
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| posted on 7/8/08 at 02:51 PM |
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How far is it??? Why not just blow an air-horn at the start and have someone with a stopwatch at the end?? Of course if you were having it so you had
multiple cars on the course at the same time that could get confusing 
Okay so the speed of sound is slower than radio waves but hey...
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phoenix70
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| posted on 7/8/08 at 03:52 PM |
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Going back to you original plan of using internet based PC. you could do this using a NTP server to get the start and end times on the run, and then
it is a simple calculation to work out the run time.
Cheers
Scott
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Myke 2463
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| posted on 7/8/08 at 03:55 PM |
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I thought that the DigiDash @ £395 already had the timing facilities that you require,
Cheers Mike.
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thepest
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| posted on 7/8/08 at 04:12 PM |
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Again guys a digidash would have to be installed on each car so that is too expensive and impractical.
As for the airhorn I was hoping to have something that would give me an error of close to 10ms! stopwatch is out of the question as it introduces the
human error.
Phoenix you have u2u
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