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pedometer algorithm   Message List  
Reply | Forward Message #26 of 307 |
Re: [niketiming] pedometer algorithm

I have had different results with distance depending on if I run fast or run slow.
 
Export a text file to excel that you have stopped several times on a run. The present software needs a lot of work.
 
Also look at old posts for links to person who developed shoe sensor.
 
I have imported the text file to excel and played what if with data, it looks like data is collected every 10 seconds, but speed is averaged out over a longer period of time.
 
Best thing about it is the graphing of different runs on the same chart, good for determining what one or two or none rest days do for given race pace for the same course.
 
Bob
 
Bob
----- Original Message -----
Sent: Tuesday, November 02, 2004 3:26 PM
Subject: [niketiming] pedometer algorithm


Just tried the Triax Elite on a hilly course. It sure seems to
record the distance accurately, but it would be nice to know about
the algorithm it uses for adjusting for stride differences up and
down hills. Anybody know how it works?






Tue Nov 2, 2004 9:14 pm

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bobsail_2002
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Forward 		Message #26 of 307 |
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Just tried the Triax Elite on a hilly course. It sure seems to record the distance accurately, but it would be nice to know about the algorithm it uses for... 		fwolthausen
Offline Send Email 		Nov 2, 2004
8:26 pm

I have had different results with distance depending on if I run fast or run slow. Export a text file to excel that you have stopped several times on a run....
ROBERT PHILLIPS
bobsail_2002
Offline Send Email 		Nov 2, 2004
9:15 pm

Fascinating thesis by Ross Stirling. Thanks much for the reference in your earlier posting. Now what we need is a way of getting the accelerometer data from...
fwolthausen
Offline Send Email 		Nov 3, 2004
1:02 am

I have also seen large changes when I run fast or slow. When I run below about 8:00 min/mi, the calibration is very linear (+/-2%). However, when I continue...
markbadgers
Offline Send Email 		Nov 10, 2004
10:34 pm

I've also found the timing to vary greatly with speed. I like your idea of calibrating for speed workouts which makes it conservative for everyday runs. It's...
bobkalish
Offline Send Email 		Dec 9, 2004
3:52 am

I may have run into these problems. I did calibrate the watch when I first got it at a local HS track but I think I messed up. I trained for three months...
Jim
charanis
Offline Send Email 		Jan 4, 2005
2:43 pm

Hello All: I'm a new niketiming group member and a representative of Dynastream Innovations Inc. Dynastream is the company that developed the speed distance ...
Kerri Ann Day
kerriann_day
Offline Send Email 		Jan 13, 2005
4:01 pm

I agree 100%, Polar also use's the same sensor but is lot more free with letting 3 rd party soft ware use the data. http://www.pccoach.com/ Bob ... From:...
ROBERT PHILLIPS
bobsail_2002
Offline Send Email 		Nov 3, 2004
2:02 am

Welcome Kerri, Now all we need is the Nike software engineer who wrote the program. Any idea what company wrote the software ? See my messages 8, 12 & 17. Bob ...
ROBERT PHILLIPS
bobsail_2002
Offline Send Email 		Jan 13, 2005
4:32 pm

Sorry, can't help you with that one. Kerri Ann _____ From: ROBERT PHILLIPS [mailto:robertphillips@...] Sent: Thursday, January 13, 2005 9:32 AM ...
Kerri Ann Day
kerriann_day
Offline Send Email 		Jan 14, 2005
4:13 pm

Thank you for the brief explanation, Kerri Ann! My friends and I often debate the question of how the accelerometer works and about accuracy issues. It's ...
SheriYahoo@...
okamoto_sheri
Offline Send Email 		Jan 14, 2005
7:00 pm
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