Major firmware update for AeroPod
Posted: Thu Feb 13, 2020 1:40 pm
UPDATE FEB 28 2020: AEROPOD INSTRUCTIONS HAVE BEEN UPDATED FOR FW 712 CHANGES. YOU CAN GET AEROPOD INSTRUCTIONS HERE:
https://velocompforum.com/viewtopic.php?f=12&t=4761
We've been working hard all winter on a major firmware update for AeroPod.
36 beta versions later (!) we are ready to release FW712.
New to this firmware are two profiles that measure CdA (profile 4 and 3).
Profile 4 is used for highest-precision CdA testing when riding in loops or out-and-back rides.
Profile 3 is used for race-day live CdA measurement.
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NEW: Profile 4, Highest accuracy CdA testing, riding in loops or out-and-back rides
Profile 4 is used when riding on closed loops or out-and-back courses, and is designed to provided highest accuracy and consistency of CdA measurement.
Here's how to use it:
1) Set your AP to profile 4
2) Go to a place where you can do closed-loop or out-and-back lap testing. At the end of each lap you will mark the lap using your Garmin or Raptor bike computer.
3) Note that you can use the automatic-lap-marker feature of your Garmin or Raptor, or alternatively you can mark laps manually with your bike computer's lap marker button (note: in my testing I found that, unless the GPS signal is strong, bike-computer-based auto-lap marking is less reliable).
4) Each time a lap is marked, the Garmin/Raptor displays your measured, average CdA for the just-completed lap. The averaged CdA value is shown for 30 seconds; after that, live CdA display resumes
5) In the ride file, you’ll see each lap’s average CdA shown in the HR field, for 30 seconds, at the end of each lap. This lap CdA value is more accurate than the computations made in Isaac. The lap CdA appears as a flat line, 30 seconds long, in the HR field.
6) For profile 4 ONLY, the conversion formula from HR to CdA has changed. The conversion formula is
CdA(profile4) = (HR + 180)/1000
For example, a HR of 200 is a CdA of 0.380
We made this change so that CdA can be resolved to 0.001 in the HR channel (in profile 3, the resolution is 0.004)
Why is profile 4 measurement now more accurate?
When riding in closed-loop laps AeroPod can fine-tune, with very high precision, its accelerometer tilt calibration. For example, in a one mile loop, the fine-tuned tilt calibration precision at the end of each lap is 99.98%. Using the fine-tuned calibration measured at the end of each lap, the FW calculates the average CdA for the just-completed lap. Then, for the next lap the tilt calibration is updated with the measurement from the last-completed lap, improving the accuracy of the next lap's CdA measurement.
So, when riding in closed loops or out-and-back routes, Profile 4 provides the highest accuracy and consistency of CdA measurement.
When using profile 4 high-accuracy CdA lap measurement, it’s best to have a 1-2 mile long loop or out-back, and to do 2 or 3 laps in succession per test.
PROFILE 3: TRAIN/RACE-DAY LIVE CDA
Profile 3 is intended for CdA measurement on training and race days. What’s different about profile 3 is that a different tilt correction method is used that is continuous and does not require you to ride in closed-loop laps. The profile 3 correction algorithm is very good but it doesn’t achieve the 99.98% precision of the profile 4 lap feature. So, in profile 3 you will get useful, live CdA throughout the ride, without the need to ride in loops or out-and-back routes, but perhaps with a bit less precision.
Here's how to use the "Train/race Live CdA" feature
1) Set your profile to profile 3 (you can copy your profile 4 settings into profile 3 if you wish, but you’ll need to manually select profile 3 using Isaac).
2) Start riding. After a few minutes live CdA will appear, and continue to appear for the remainder of your ride
3) If you hit the lap button while in profile 3 you’ll see your average CdA for the prior lap, but there won’t be any lap-CdA correction applied
We will be posting this firmware soon on Isaac, but if you're anxious to get it sooner, please email technicalsupport@velocomp.com
https://velocompforum.com/viewtopic.php?f=12&t=4761
We've been working hard all winter on a major firmware update for AeroPod.
36 beta versions later (!) we are ready to release FW712.
New to this firmware are two profiles that measure CdA (profile 4 and 3).
Profile 4 is used for highest-precision CdA testing when riding in loops or out-and-back rides.
Profile 3 is used for race-day live CdA measurement.
----------------------
NEW: Profile 4, Highest accuracy CdA testing, riding in loops or out-and-back rides
Profile 4 is used when riding on closed loops or out-and-back courses, and is designed to provided highest accuracy and consistency of CdA measurement.
Here's how to use it:
1) Set your AP to profile 4
2) Go to a place where you can do closed-loop or out-and-back lap testing. At the end of each lap you will mark the lap using your Garmin or Raptor bike computer.
3) Note that you can use the automatic-lap-marker feature of your Garmin or Raptor, or alternatively you can mark laps manually with your bike computer's lap marker button (note: in my testing I found that, unless the GPS signal is strong, bike-computer-based auto-lap marking is less reliable).
4) Each time a lap is marked, the Garmin/Raptor displays your measured, average CdA for the just-completed lap. The averaged CdA value is shown for 30 seconds; after that, live CdA display resumes
5) In the ride file, you’ll see each lap’s average CdA shown in the HR field, for 30 seconds, at the end of each lap. This lap CdA value is more accurate than the computations made in Isaac. The lap CdA appears as a flat line, 30 seconds long, in the HR field.
6) For profile 4 ONLY, the conversion formula from HR to CdA has changed. The conversion formula is
CdA(profile4) = (HR + 180)/1000
For example, a HR of 200 is a CdA of 0.380
We made this change so that CdA can be resolved to 0.001 in the HR channel (in profile 3, the resolution is 0.004)
Why is profile 4 measurement now more accurate?
When riding in closed-loop laps AeroPod can fine-tune, with very high precision, its accelerometer tilt calibration. For example, in a one mile loop, the fine-tuned tilt calibration precision at the end of each lap is 99.98%. Using the fine-tuned calibration measured at the end of each lap, the FW calculates the average CdA for the just-completed lap. Then, for the next lap the tilt calibration is updated with the measurement from the last-completed lap, improving the accuracy of the next lap's CdA measurement.
So, when riding in closed loops or out-and-back routes, Profile 4 provides the highest accuracy and consistency of CdA measurement.
When using profile 4 high-accuracy CdA lap measurement, it’s best to have a 1-2 mile long loop or out-back, and to do 2 or 3 laps in succession per test.
PROFILE 3: TRAIN/RACE-DAY LIVE CDA
Profile 3 is intended for CdA measurement on training and race days. What’s different about profile 3 is that a different tilt correction method is used that is continuous and does not require you to ride in closed-loop laps. The profile 3 correction algorithm is very good but it doesn’t achieve the 99.98% precision of the profile 4 lap feature. So, in profile 3 you will get useful, live CdA throughout the ride, without the need to ride in loops or out-and-back routes, but perhaps with a bit less precision.
Here's how to use the "Train/race Live CdA" feature
1) Set your profile to profile 3 (you can copy your profile 4 settings into profile 3 if you wish, but you’ll need to manually select profile 3 using Isaac).
2) Start riding. After a few minutes live CdA will appear, and continue to appear for the remainder of your ride
3) If you hit the lap button while in profile 3 you’ll see your average CdA for the prior lap, but there won’t be any lap-CdA correction applied
We will be posting this firmware soon on Isaac, but if you're anxious to get it sooner, please email technicalsupport@velocomp.com