Power File Databasing

Spent a wee-bit of time figuring out how to decode the binary bits and bytes of the SRM power meter file format.


Great insight and c++ code over at goldencheetah.org.

Here's the first little bit of code in the script I wrote for batch importing SRM files and creating a matlab database for subsequent analysis:





With this piece of code, it's pretty easy to simplify big jobs like putting together plots like the following for 300+ power meter files (this plot was kind of inspired by Dr. Allen Lim of the Saris Group in this Q&A tidbit - http://www.saris.com/t-PowerTourQA.aspx#NormalizedPower ):






For those interested in further reading about this plot that orginally appeared in an old article on the main btr site you can check out:

http://www.biketechreview.com/power/strain.htm


not much has changed globally since 2004/2005, eh?


Anyway, this database creation tool I've created is pretty cool - it sequentially opens up each individual file in the native SRM format and processes the data any which way you like - well, at least any which way you can code something up! pretty cool, huh!?

oh, man, I'm a total dork... ;-)