VZFit and QZ: Incorrect kilometers

[Jazzy0806]

Describe the bug When I start a session on the Apple Watch, I'm shown fewer miles via QZ than in VZfit.

To Reproduce Steps to reproduce the behavior:

1. Open QZ app on iPhone
2. Start session on Apple Watch
3. Open VZfit and connect with QZ via iPhone
4. End session

Expected behavior The kilometers shown should be the same.

Smartphone (please complete the following information):

• iPhone 13 Plus, latest OS

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

Additional context The sessions are doubled and show up twice in Strava/Health and on the Apple Watch

debug-Mi__März_29_16_44_08_2023.log

Thanks for your help!

[cagnulein]

@emalafeew Hi, how are you calculating speed and so distance in Vzfit? Don't you use the speed sent from QZ? @Jazzy0806 can you also attach a log where you enable the speed based on power setting? I guess this is another issue that you had, right?

[Jazzy0806]

@cagnulein Will load the debug of using "Speed calculates on power" later. I'm at the gym right now 😂 But nothing's going to happen there. The bike won't move in VZfit with this feature enabled.

[cagnulein]

@Jazzy0806

But nothing's going to happen there. The bike won't move in VZfit with this feature enabled.

that's the reason why I would like to check the debug log, it should move :) so I guess you have some settings wrong. Also speed calculates over power should be always enabled in order to have a realistic speed to report to vzfit. I added this settings expecially for vzfit 2 years ago :)

[Jazzy0806]

Here's the log. After pedaling 30 seconds it all of a sudden moved. Seems to work now. Will keep a eye on it tomorrow, it's bedtime here. debug-Mi__März_29_19_40_49_2023.log

[Jazzy0806]

The kilometers don't match even with "Speed calulates on Power" enabled. QZ says 0,79 kilometers, VZFit says 1,11 kilometers. Miles output is disabled in the settings.

[cagnulein]

@Jazzy0806 we need to know from @emalafeew how they calculate them. For what I knew, VZFit used the speed from QZ 2 years ago. I don't know how they calcualte now. Maybe they changed their algorithm and so it's impossible to have the same value. But if it's so, it seems to me a VZfit bug rather than something that I can do on QZ :)

[Jazzy0806]

Today I tried again. Opened QZ on my iPhone, started it on Apple Watch and connected to VZfit. Bike wouldn't move at all. Not a single meter, just pedaling in place. Same setting, nothing changed.

debug-Do__März_30_16_58_31_2023.log

[cagnulein]

@Jazzy0806 I guess I understood this. Set disable to the cadence sensor setting in QZ under accesories (since your bike provide already the cadence). Let me know if it's better (at least with the speed thing).

For the distance thing we have to wait Vzfit (i asked him to check this ticket on messenger, if you can do the same, it's better, thanks)

[Jazzy0806]

@Jazzy0806 I guess I understood this. Set disable to the cadence sensor setting in QZ under accesories (since your bike provide already the cadence). Let me know if it's better (at least with the speed thing).

For the distance thing we have to wait Vzfit (i asked him to check this ticket on messenger, if you can do the same, it's better, thanks)

Ah, you're right! The cadence sensor is still on the pedal. Oops! Will try it right now.

[Jazzy0806]

@Jazzy0806 I guess I understood this. Set disable to the cadence sensor setting in QZ under accesories (since your bike provide already the cadence). Let me know if it's better (at least with the speed thing).

For the distance thing we have to wait Vzfit (i asked him to check this ticket on messenger, if you can do the same, it's better, thanks)

No, doesn't work. I even put the battery out of the cadence sensor. No speed in the tile. debug-Do__März_30_16_58_31_2023 2.log

[cagnulein]

@Jazzy0806 in this log I still see the cadence sensor setting set to the bryton cadence sensor. Please set it to disabled and press ok and restart QZ. This is the right way to do this test. Thanks

[Jazzy0806]

@Jazzy0806 in this log I still see the cadence sensor setting set to the bryton cadence sensor. Please set it to disabled and press ok and restart QZ. This is the right way to do this test. Thanks

That's exactly what I did. I set it to disabled, closed the app, restarted it. The battery is out of the sensor.

[Jazzy0806]

I'll try again later.

[cagnulein]

@Jazzy0806 maybe you send me the wrong log so, because in the log the sensor is there

Do. März 30 16:58:31 2023 1680188311535 Debug: /Users/cagnulein/qdomyos-zwift/src/main.cpp int main(int, char **) "cadence_sensor_name" QVariant(QString, "Bryton Cadence")

it's the timestamp right?

[Jazzy0806]

@Jazzy0806 maybe you send me the wrong log so, because in the log the sensor is there

Do. März 30 16:58:31 2023 1680188311535 Debug: /Users/cagnulein/qdomyos-zwift/src/main.cpp int main(int, char **) "cadence_sensor_name" QVariant(QString, "Bryton Cadence")

it's the timestamp right?

I'm not sure. I think so. Will give it another try.

[Jazzy0806]

Tried it again, and again it didn't move. Cadence sensor is disabled, I double checked this.

debug-Do__März_30_17_43_06_2023.log

[Jazzy0806]

Maybe I should delete the app and load new?

[Jazzy0806]

Deleting the app and reload it was the solution. Now everything works fine (except from the distance)

[cagnulein]

ok i will check the log anyway so we will know which setting was wrong thanks

Il giorno gio 30 mar 2023 alle 18:41 Jazzy0806 @.***> ha scritto:

Deleting the app and reload it was the solution. Now everything works fine (except from the distance)

— Reply to this email directly, view it on GitHub https://github.com/cagnulein/qdomyos-zwift/issues/1382#issuecomment-1490607510, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAALYWCBVZFP6K7E4THGTQTW6WZSHANCNFSM6AAAAAAWMB674I . You are receiving this because you were mentioned.Message ID: @.***>

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

[cagnulein]

there was for sure a bike weight of 80kg that was wrong that could be the issue. because it was like you were trying to move your weight + 80kg.

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

Il giorno gio 30 mar 2023 alle ore 18:41 cagnulein @.***> ha scritto:

ok i will check the log anyway so we will know which setting was wrong thanks

Il giorno gio 30 mar 2023 alle 18:41 Jazzy0806 @.***> ha scritto:

Deleting the app and reload it was the solution. Now everything works fine (except from the distance)

— Reply to this email directly, view it on GitHub https://github.com/cagnulein/qdomyos-zwift/issues/1382#issuecomment-1490607510, or unsubscribe https://github.com/notifications/unsubscribe-auth/AAALYWCBVZFP6K7E4THGTQTW6WZSHANCNFSM6AAAAAAWMB674I . You are receiving this because you were mentioned.Message ID: @.***>

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

[Jazzy0806]

Something's still not right. I can not enable "Speed calculates on Power" with my Renpho bike. It still won't move in VZfit. Attached are two files: one trying to get the bike moving with "Speed calculates on Power", one with this function disabled (there it moves). debug-FrApr14_11_38_13_2023.log

[Jazzy0806]

The second log file is too big :(

[cagnulein]

The second log file is too big :(

zip it

[Jazzy0806]

debug-SaApr15_13_35_29_2023.log.zip

[cagnulein]

i will check it asap

[Jazzy0806]

I don't know why it was splitted, but it was 28 something kilometers on VZfit. QZ says 18,49. Something's not right here and I don't know what it is.

[cagnulein]

@Jazzy0806 i still didn't receive any feedback from vzfit, did you? we need them to cross the information. because it seems that they over calculate speed. maybe using the difficulty in the game?

[Jazzy0806]

@Jazzy0806 i still didn't receive any feedback from vzfit, did you? we need them to cross the information. because it seems that they over calculate speed. maybe using the difficulty in the game?

This could be. I'm riding on difficulty 5. Didn't get a reaction so far.

[cagnulein]

try changing the speed, put the max difficulty and check if the delta is minor, if so, you should talk with them

let me know

[Jazzy0806]

try changing the speed, put the max difficulty and check if the delta is minor, if so, you should talk with them

let me know

I'll try this and will let you know.

[emalafeew]

We use the speed and distance supplied by QZ if two conditions are true:

1. The fitness device reports speed at the wheel (as determined by FTMS flags or reports as a hub speed sensor)
2. The user has enabled "Authentic Mode"

Note that authentic mode is not enabled by default, because

a. VZfit also supports cadence & power sensors that do not directly report speed b. It's a game and was tuned to go a bit faster than reported c. Without resistance control we modify your virtual speed up and down hills

Hope that helps! -Eric

On Wed, Mar 29, 2023 at 11:23 AM Roberto Viola @.***> wrote:

@emalafeew https://github.com/emalafeew Hi, how are you calculating speed and so distance in Vzfit? Don't you use the speed sent from QZ? @Jazzy0806 https://github.com/Jazzy0806 can you also attach a log where you enable the speed based on power setting? I guess this is another issue that you had, right?

— Reply to this email directly, view it on GitHub https://github.com/cagnulein/qdomyos-zwift/issues/1382#issuecomment-1488836556, or unsubscribe https://github.com/notifications/unsubscribe-auth/AB4IDM5AGNZ3OQ3BNOS2QBDW6RHX3ANCNFSM6AAAAAAWMB674I . You are receiving this because you were mentioned.Message ID: @.***>

[Jazzy0806]

Authentic mode made it! Unbelievable that I didn't try this 🙈

[cagnulein]

great!