This is the Grayhill. I hope that by the time you watch this video it will be much smaller
and more compact and elegant...
but for now, this is the Grayhill. It's basically a screen
that CAN messages go to,
It has a buzzer. It shows the driver the vehicle mode.
which can be autonomous or manual mode.
Why do we need a Grayhill in the vehicle?
Basically...
it's a very complex system and we also see this in the display.
We can see if the vehicle is in autonomous or manual mode on the display.
But malfunctions can occur, and because it's a complex system,
it might still show that it's on when it's off, or vice-versa...
This isn't something that happens, but the fear still exists.
that's why there's something separate...
which is independent, and always shows the vehicle's real mode - off or on.
That's why there's a screen here, it's meant for the driver...
and the copilot, who are seated,
mainly the driver... it tells the driver what mode the car is in.
If a malfunction occurs, heaven forbid,
and the driver wants to take over, and the car doesn't let him/her,
this is something that hasn't happened... and let's hope it stays that way...
We have the red button. The driver simply pushes it, and turns off the Data Speed
which are the boxes above the pedals
on the side of the glove compartment. There are two boxes that control the car.
that are DataSpeed, that connect to the vehicle's computer...
Once you push this button, it turns off the power, and totally disconnects
our system from the car's computer, and the driver reassumes control.
During driving, the copilots and drivers tag bad events to send them to developers.
This tagging sends a certain file to the clip, or to the log...
and that's how, when they review the drive, they can jump right to the location
and understand, sitting behind the computer screen, what had happened during the drive.
how it felt. Because when you're sitting behind a computer screen...
it's quite hard to understand what was wrong with the situation, or how the driver
and the copilot had felt, so it is very important to record it.
The component responsible for recording is the tagging box,
this red box...
It has a little Arduino board with a transmitter...
and a remote control, like this, for the copilot...
and by pressing A, B, or C, depending on the severity of the event,
"A" being high severity, and "C" being low severity,
they tag and record, over several seconds, the situation that occured in the vehicle.
For this recording box to work, it's also connected to the CAN.
in order to get the timestamp and to know where to put the audio file...
and to save this file to the clip itself, it's also connected, through a microphone,
to the master. So if anyone has ever wondered what this little component is, it's the tagging
box's microphone, and this is basically how we tag events in the vehicle.