cagnulein / qdomyos-zwift

Zwift bridge for smart treadmills and bike/cyclette
https://www.qzfitness.com/
GNU General Public License v3.0
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[BUG] Mismatch Cadence, power, speed #2313

Open juanmre opened 2 weeks ago

juanmre commented 2 weeks ago

Describe the bug The Cadence and Power received by swift may not be accurate as sometimes im in a 100+ cadence trying to generate 120W power and my feet are bouncing from the pedals. (used an iPhone for the QZ app)

In a fresh install in android to send data to Garmin, I'm seeing mismatching data between what QZ APP displays, what Garmin receives and what Zwift receives... Power and Cadence seem right, but Speed and distance are way off.

Im adding a long exercise from this morning Swift link and Garmin link (both from garmin app) and a third attempt later today only 5 minutes with the QZ .fit file (after joining the beta and finding the file in Android 14). Unfortunately in this last attempt my Garmin lost the power and cadence sensor data.

To Reproduce Steps to reproduce the behavior:

  1. Connect Echelon EX-3 with QZ app in Android
  2. Start activity in Garmin, connect Power and Spd/Cadence sensors
  3. Open Zwift, connect power, cadence and speed sensors
  4. Start a ride (without ERG option in QZ app)

If repeated without Garmin and with ERG enabled selecting a Zwift training, it will be hard to keep the power because pedals resistance is not enoug and feet will be bouncing.

Expected behavior In the first attempt, Zwift ride and no ERG, Zwift screen seems reasonable but speed recorded by Garmin will be excessive... In the second exercise, Zwift training with ERG, is hard to keep up with the power because pedal resistance is not enough

Screenshots Sharing my setup an some off-data shown

Desktop (please complete the following information):

Smartphone (please complete the following information):

Append a debug log

Follow this guide https://github.com/cagnulein/qdomyos-zwift/wiki/How-do-i-get-the-debug-log-in-case-something-doesn't-work%3F

Will add debug file in next excercise session.. Mon Apr 29 11_56_51 2024.fit.zip

Screenshot_20240429_115123 Screenshot_20240429_123200 Screenshot_20240429_123255 Screenshot_20240429_123313 Screenshot_20240429_123230 Screenshot_20240429_123239 Screenshot_20240429_123328 Screenshot_20240429_123338 Screenshot_20240429_123536 Screenshot_20240429_123431 IMG_0656 Screenshot_20240429_122548_ANT Tester

5 min recent exercises (both links from Garmin) Power, cadence and speed disconnected from Garmin

Earlier 45 min activity (from the .Fit file attached)

Additional context Feel free to request any more data that could help

cagnulein commented 2 weeks ago

first of all read this, https://robertoviola.cloud/2024/01/27/dispelling-the-myth-speed-variations-between-qz-and-zwift-are-not-a-device-issue/

garmin and qz must match if the wheel diameter is set to 100mm on the garmin. does it?

Roberto Viola Software engineer and open source enthusiast http://robertoviola.cloud

Il giorno lun 29 apr 2024 alle 20:51 juanmre @.***> ha scritto:

Assigned #2313 https://github.com/cagnulein/qdomyos-zwift/issues/2313 to @cagnulein https://github.com/cagnulein.

— Reply to this email directly, view it on GitHub https://github.com/cagnulein/qdomyos-zwift/issues/2313#event-12647644859, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAALYWERZI2HVTMIGA62QO3Y72JDNAVCNFSM6AAAAABG63WHM2VHI2DSMVQWIX3LMV45UABCJFZXG5LFIV3GK3TUJZXXI2LGNFRWC5DJN5XDWMJSGY2DONRUGQ4DKOI . You are receiving this because you were assigned.Message ID: @.***>

juanmre commented 2 weeks ago

Hi, thanks for your attention... hold on, I'm thinking I may need to calibrate the speed sensor in my Garmin... let me look in to it and get back to you here...

thanks!

cagnulein commented 2 weeks ago

yeah just set the wheel diameter to 100mm and you are good to go also enable the speed based on power setting in the bike setting in qz in order to have a similar speed to zwift as referenced in the link i'm going to bed soon

Roberto Viola Software engineer and open source enthusiast http://robertoviola.cloud

Il giorno lun 29 apr 2024 alle 20:59 juanmre @.***> ha scritto:

Hi, thanks for your attention... hold on, I'm thinking I may need to calibrate the speed sensor in my Garmin... let me look in to it and get back to you here...

thanks!

— Reply to this email directly, view it on GitHub https://github.com/cagnulein/qdomyos-zwift/issues/2313#issuecomment-2083451074, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAALYWGUCY6OPNZ4SKLTZHTY72KBVAVCNFSM6AAAAABG63WHM2VHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDAOBTGQ2TCMBXGQ . You are receiving this because you were mentioned.Message ID: @.***>

stale[bot] commented 2 days ago

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.