In reviewing the cases described in Car2Car approach, there are challenges
to the Car-Based, Situation-Oriented approach:
1. The Car2Car system apparently uses specific messages for
each different situation. Thus it may not be prepared to deal with situations
that don't have an existing message.
2. The Car2Car messages correspond to specific events
observed and reported by Car2Car system objects – what about observations by other types of
intelligent objects, such as smartphones? Why would a smartphone want to
participate in the Car2Car system? It has quite different sensors from a car
and needs to provide quite different services to its owner.
Years ago one of my friends was driving through an
intersection when an entire truck wheel rolled in front of them totaling their
car. It wasn’t visible to them until too late to avoid the collision because it
was approaching fast down the side street. I hope there is a message for
“unidentified object approaching”. And it also needs to convey motion information,
along with size and mass, so they know whether to try to avoid it – perhaps it
is just a plastic bag blowing in the wind.
One night years ago I was driving down a 4-lane divided highway
in New Jersey, so of course it had strip malls on the side. There were no other vehicles on my side of the road, unusual for New Jersey, when I saw
a deer appear in my headlights in the middle of my lane. No problem, I thought,
I will just switch to the other lane, but then I saw it was a whole herd of
deer blocking the entire road – the collision was inevitable, even though I
braked as hard as I could as soon as I saw the deer. Would the Car2Car approach
have warned me of that herd of deer with enough information to tell my what to
do: change lanes, emergency braking, move to the shoulder, … ?
By contrast a 4-Dimension Global Map includes everything in the area, whether
it is a system object or not, and whether it is recognized by the system or is
an unidentified item, and
information is gathered from a wide range of different electronic devices,
including smartphones.
No comments:
Post a Comment