Stroke Data, saving and replaying training sessions

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g18c
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Joined: December 29th, 2006, 3:58 pm

Stroke Data, saving and replaying training sessions

Post by g18c » May 11th, 2007, 4:47 pm

Hi, can anyone kindly advise me a sensible way of replaying a training session? I see on some of the commercial software you can save stroke data and race against yourself at a later date, i would like to be able to do this for my app.

I am monitoring the data from the PM3, distance rowed, stroke power, and stroke state. Now i guess i have 2 options

1) sample the distance covered, this will be most accurate but have biggest file size

2) use the stroke state, when it goes to catch store the stroke power and time at which stroke occurred

Now if i go with the 2nd option, the boat would obviously speed up then decelerate with drag, any pointers as to where would i look for these equations to model these physics in software? ideally i would like the stored data to reproduce exactly what the pm4 is reporting (ie for a given power on a stroke the same distance will be travelled by both my app and the PM3 monitor).

Finally, does anyone know the commercial apps store this stroke data, option 1, 2 or a different way?

I see e-row and rerow.com, ideally this is the kind of functionality i would like to implement with as much accuracy as possible.

Many thanks in advance

Chris

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