Skitag support and FAQ


FAQ

What is Skitag?

Skitag is an App+IMU device+GPS bundle user experience, i.e. to feel the complete experience of Skitag you'll need a smartphone with the Skitag App installed, access to the GPS and the IMU device paired to your smartphone working all together.

Because the Skitag IMU device is yet a prototype we also trained our algorithm to process your smartphone GPS location information. Therefore, even if you don't have the Skitag IMU device, by downloading the Skitag App from Apple Store or Google Play you will have overall information about your ski downhills, like chrono, distance, elevation and speed.


What is Biketag and Surftag?

Biketag and Surftag are part of the 2019 Skitag Summer Camp. The aim of this program is to continue training algorithms, testing Skitag IMU device BLE communication and testing the Skitag IMU device fixing system under severe conditions (i.e. Sea). This summer will be focused on the evaluation of the User Experience with the Apple Watch Apps.


How do I pair my Skitag IMU device?

First, download the Skitag App from the App Store or Google Play. Turn on the App. Make sure your bluetooth is on and visible to pair with another device. Make sure you allow Skitag App to access your GPS location. Navigate to the Record screen. Then, turn on the Skitag IMU device pressing the button at least twice. You’ll see a one second red light blinking in one corner of the skitag device (Note: it only blinks when you press the button). If everything is right you’ll see a message in the record your skitag app’s screen that displays: skitag device connected. That’s it. The skitag device is paired with your smartphone. You can now record your Skitag.

go to skitag device
pairing/fixing tutorial


Can I use the Skitag App without the Skitag IMU device?

Yes, you can. The Skitag App also uses the GPS location system of your smartphone to cluster your downhills and measure your distance, elevation and speed.


Does the Skitag App has artificial intelligence?

Yes, it has one deep neural network and one recurrent neural network to classify, predict and group your Skitag IMU device and GPS data.


What data does Skitag App shows?

In the Downhills screen you'll see each one of your Downhills recorded.

The first line (Skitag IMU device icon) shows you information about your ski style and your ski balance. If you don't have the Skitag IMU device this will be empty.

Then you'll find the information obtained from your smartphone GPS. You'll have the downhill's chrono, distance, elevation, speed and maximum speed. You'll also have a plot of your downhill elevation profile.


Going down the Skitag GPS elevation plot you'll find additional data supplied by the Skitag IMU device.

You'll have your Carving path (Left and Right), your Carving Seed (Left and Right), your Carving Shape (Long and Short) and your curve counters (Left and Right). Unfortunately, if you don't have the Skitag IMU device these also will be empty.



What's an optimal curve path?

It’s difficult to come up with a standard optimal ski curve definition. Most of skiers will agree that an optimal ski curve depends on the ski boards, on the track inclination, the ski velocity and many more conditions; i.e. equipment, snow, track, skier's weight.

Some suggest to pre-parametrise the algorithm with this kind of information; i.e. snow conditions and/or ski board specifications. Nevertheless that decision would mean to move away from the essence of artificial intelligence; i.e. find patterns from raw complex nonlinear data.

In that sense we found that most skiers may also agree that an evidence of an optimal curve is when it feels that the ski board traces a perfect curve without drifting. It feels smooth, they say. Therefore we thought that an ellipse could be a good standard for an optimal curve path while you are skiing.

Skitag gets every ski curve optimal path replacing the ellipse formula parameters with the ski curve timestamp events and the maximum tilt during the ski curve. Respectively the semi-major and semi-minor axis depending on the shape of the curve (long or short curve).

Only the skiers experience with Skitag App, Skitag IMU device and the results of the skitagCI initiative will tell us if this approach is a good one or if we need some other kind of approach like offering an App with a training configuration so the skiers collectively trace and classify ski curves events.

Yes! Certainly this could be a very interesting project for the future; i.e. let the anonymous interactions of skiers to draw the optimal ski or snowboard curve paths. Interesting...


How can I get a Skitag IMU device?

We are presently delivering a few prototypes free of charge to the members of our algorithms training program located in Europe. We are sill validating some issues regarding water proof and fixing system before delivering for sale.


How do I turn on the Skitag Predictive Carving alerts?

To let Skitag alert you (sound and vibration) about your carving performance while you are skiing you must set your Skitag predictive alerts.

iOS: Go to Skitag Preferences screen and choose which alert you want to experience: Optimal, Above and/or Below.

Android: Go to settings menu. Choose Skitag Preferences and choose which alert you want to experience: Optimal, Above and/or Below.

You must have a Skitag IMU device to experience this alerts.


What does the skitag device has in it?

It has an Invensense MPU9250 IMU (inertial measurement unit) sensor that captures your movements in 9 axis: 3 accelerometer axis; 3 gyroscope axis and 3 magnetometer axis. It has a Texas Instrument CC2640R2 microchip with Bluetooth Low Energy (BLE) connectivity.


Is it battery-powered?

Yes, you’ll need a CR2032 battery to power on this version of the skitag device. However, we are planning to introduce a rechargeable battery in the skitag device version 2.0.


The red light is not turning on or the skitag device is not paired with my smartphone

Checklist: Is your battery correctly placed, i.e. positive face looking upside? Is it charged? Is your smartphone bluetooth visible?

Sometimes it takes more than one try to get the Skitag IMU device connected with your smartphone.


I want to know more about the Skitag experience before getting a Skitag IMU device

Of course! It sounds logical. Please visit our Skitag 2017/2018 web site and navigate through the demos included. We'll be adding new demos and additional charts as soon as our trainers provides us with more skitag data.


I still have more questions regarding Skitag App or Skitag IMU device. How can I get additional support?

Please contact our labs in situalab (labs@situalab.com) or contact Skitag data center (skitagdata@skitag.eu). Our customer support team located in Pamplona (Spain) will answer your question as soon as possible.

Contact Skitag

Get in touch if you want to know more about the algorithms behind the skitag experience. Send us an e-mail if you want to become a trainer and test the Skitag IMU device. Or just tell us your feelings about this project.

Pamplona (Navarra)

skitagdata@skitag.eu

labs@situalab.com