SPORTS POWER METERS

A post from the Brim Blog

News: Progress report

test

A progress update is overdue, I think, as it’s been a while since the last one. The major event in the last couple of months was the online survey we ran in February. We were amazed and re-energised by the huge response we got to the survey and by the many messages of encouragement and support. We got responses from more than 25 countries all over the world, and from 45 different states in the USA.

wires

We’re still analysing the results in various ways, and extracting much interesting and useful information. One statistic from the survey, which you may find useful when trying to explain to your non-cycling other half that having so many bikes is normal, is that almost 70% of cyclists said they owned 3 or more bikes, and 1.5% said they owned 10 or more bikes. One third of respondants claimed to do over 5000 km per year, but we suspect that for some of them that may include the kilometres they intend to do rather than just what they actually do! Fits right in with my new visualisation training technique – I lie down, close my eyes and visualise the whole training run. Then I go asleep to recover!

shoe

Thanks to you all for the many messages of support – it really helps to keep us going through the hard times when things aren’t working out and we begin to question why we’re doing this. We also got offers of help with testing (many!), offers of cooperation of various kinds, and suggestions for special applications of our technology. There’s huge interest in what we’re doing, which makes us all the more determined to produce a system that will work well.

board

Development work is proceeding. Slower than we would like, but we’re making progress. At the moment we’re working on the processing algorithms to produce power figures from our sensor measurements. Some contributors to online discussions of what we’re doing have remarked that the algorithms will be difficult. That’s an understatement! We’ve been doing lots of what my family calls “hard sums” to come up with version 1 of our algorithm, and we’ll be testing and improving that over the next couple of months.

cables

We’re also working on how our system will integrate with ANT+ devices. We haven’t decided yet exactly how that will work, so we’re exploring a number of possibilities. We’ve also been reviewing and progressing our patents (amazing how time has flown by since we lodged our first application).

There’s still much development work to do – sometimes it seems that for every problem we solve another one becomes apparent. In true engineering style we keep knocking them down and slowly working our way to a solid well designed system. No shortcuts – everything is researched and tested until we’re confident we know exactly what’s going on. Lots of “hard sums” involved!

3 Responses to “Progress report”

  1. Shawn says:

    Is this power meter priced for recreational riders or serious rides? I’m think recreational being sub $200.

  2. Jorrin says:

    5000km a year? Easy. 50km commute to work, 5 days a week is already 250km. 20 weeks has it covered. A year runs up 12500km just commuting! Then there are the 100km weekend training rides (so add another 5000km per year) then there are the races, etc…
    So for me, the keywords are longevity and reliability.
    Good luck with the algo’s-I would really like to see you guys succeed!

  3. Hammertime says:

    Having so many bikes is normal for the statistically biased population of cyclists who would respond to a survey on a not inexpensive “exotic” product under development, and who, on average and in distribution, spend more money on bikes and cycling gear than even the average “serious” cyclist. Folks with a single $1000 or even $2000 bike are not representative of the cyclists who would respond to your survey.

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