What do you think I do not look like a professor with these glasses
Goodmorning friends of vado al max and youtube and welcome to this new video
As you can see, I had a nice pair of glasses here on my face because they found me
slightly short-sighted and astigmatic but still calm nothing disturbing
This will absolutely not affect my driving quality. If you have followed the facebook page carefully
of the channel, you will find down here in the description
in the last days I have reshared videos that have a single element in common,
that is the gps telemetry. You know that it has always been my very special fixation to make videos of this kind and this is precisely the topic
of the first episode of the new kart break series, the karting break
this new series that is mainly focused on dailyvlog and vlog made during lunch break from work,
so in a very simple and fast way. In this series the topics related to karting and also to motor sports in general will be dealt
with practical guides, my personal advice and so on.
as said the topic of this first video will be the GPS telemetry
But I noticed that on YouTube and on Facebook there is a lack of material regarding GPS telemetry
for which we say I felt a little bit in duty to fill this gap
starting from the fundamental technical principles passing then to the type of data that can be acquired with this technology and then arrive at my data acquisition set up
following it's natural evolution
And at the end of the video I will indicate the fundamental technical factor to acquire all your data in an optimal way
To begin with I will give you some brief technical notes regarding this gps technology
that like many other things was initially developed for military purposes, a bit like the internet.
Gps stands for global positioning system, global positioning system,
this system is based on a network of satellites more commonly called constellation, which through a complex system of triangulations
allows a receiver on the ground to receive data on its position
that is, latitude, longitude and even local time. Obviously there is not only the GPS system but there is also the Russian version which is called glonass, the Chinese version
and also the European version, which is called Galilean. I wonder why. So how can GPS technology help us and what data can be detected?
Well the most interesting data that can be detected are obviously the position, useful in the races where there is also a strategy factor
the trajectories, which is very useful to understand where you can file those fundamental tenths in the race and also in qualifying
the speed that is a direct expression of the potential of the engine
and also lateral and longitudinal lateral accelerations useful for detecting under and oversteer phenomena
And how do we get all these good data? Simply with a GPS receiver
At the beginning of my experience in this area I simply had an old android smartphone, equipped with gps obvious, like this one
an old xperia sony ericsson, so nothing exceptional
In short, discrete accuracy, just to start the first rudiments is more than good
but then the desire for precision has increased in parallel
and among the various folds of the internet could find this, a nice gps data logger of the qstarz
with much higher accuracy than the smartphone. And since then decided to use them in
combined, the smartphone to see the times, connected via bluetooth to the data logger.
the fantastic thing about this hybrid system is that practically the datalogger not only acts as an external gps antenna but also makes it from
integrated datalogger, so a sort of backup system, in case of need. To acquire the fundamental data to have our beautiful
recordings with the overlay, I personally recommend a couple of applications
Racetime and racecrono. You can find them easily for both Android and IOS
I leave the link in the description, at least for the android part.
As said at the beginning there is a fundamental parameter to be taken into account to obtain the most accurate measurements possible, is the frequency of the GPS antenna itself
the higher it is, the more precision it will be and the more sampling it will take on the second.
So you will understand very well that a smartphone with a 1 Hz antenna will not have the same accuracy
of the data logger which is 5 Hz, so you will understand that this parameter is very important
My personal advice is to go with frequencies above 5 Hz
And so a sampling every 0.2 seconds that seems to me the minimum for motorsport
Basically it is a great tool to improve yourself and also to file that little bit more
which allows us to be faster and more efficient on the track.
I hope you enjoyed this video, I invite you to leave a nice like and to subscribe to the channel, and to stay connected because from this video
will also result in a nice practical practical tutorial on how to make this type of video.
From your vado al max it's all and see you next Sunday. bye, bye
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