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junko.yoshida
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Car2X communication
junko.yoshida   8/21/2013 3:58:31 PM
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Lars, you wrote in your blog:

A more fundamental change to the industry is being driven by the move to connect cars with each other and roadside infrastructure via the dedicated automotive WiFi standard 802.11p.


As a reporter, this is something I hear about often. While I think I grasp the concept on a high level, it's not clear to me how a number of different wireless "communication" technologies -- in addition to 802.11p -- will play into the V2I, V2V and V2X communication. What are the things that still need to be developed, and how far away are we from that reality? 

rick merritt
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Re: Car2X communication
rick merritt   8/21/2013 9:57:25 PM
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...also, what's the status of 802.11p as a standard, built int chips and cars?

prabhakar_deosthali
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Re: Car2X communication
prabhakar_deosthali   8/22/2013 7:29:11 AM
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And what about the security standards to prevent these connected cars from hacking and creating machine-made accidents?

junko.yoshida
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Re: Car2X communication
junko.yoshida   8/22/2013 10:28:34 AM
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@prabhakar, that's a good question. I intend to start peeling the onion soon...

junko.yoshida
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Re: Car2X communication
junko.yoshida   8/22/2013 10:29:31 AM
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@Rick, exactly. I wonder about that, too. How far are they (802.11p chips) into cars?

LarryM99
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Re: Car2X communication
LarryM99   8/22/2013 2:02:23 PM
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Security is certainly an issue, but there are also other network effects to take into account. I was driving on a freeway in L.A. a while back when suddenly everyone went diving for the next exit. Just about then I noticed that my GPS (with traffic info) was recalculating. I bucked the trend and kept on the same route, even after my GPS wanted to point me towards the exit as well. There was an incident ahead that was reported, but the lighter traffic meant that that route actually wasn't a problem. I can see real opportunities to direct crowd behavior that might tempt me to do some hacking.

junko.yoshida
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Re: Car2X communication
junko.yoshida   8/22/2013 2:19:46 PM
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@Larry, that is a great example. "Network" effects are something the market (and consumers) will start to learn. 

Yes, it would be a hoot if you can direct the traffic to some place else -- so that you could have less cars on the road you are travelling... and I can see that it is not exactly impossible!

Aagney
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Re: Car2X communication
Aagney   8/22/2013 4:01:21 PM
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I have designed communications systems for trains and mobile payments where saftey and security are mandatory. By default you have to design the system assuming that the communications systems and networks are not secure or safe. Cars should not rely on the data received via communications systems. They should take actions only after validating that the data is within the expected limit and it is safe to take the action. Typically they use sensors like radar and other kind of sensors and on board data or data from multiple sources to ensue that it is safe to act on the data. Otherwise it should request manual intervention or come to a safe emergency halt. 

junko.yoshida
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Re: Car2X communication
junko.yoshida   8/22/2013 4:59:59 PM
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@Aagney, I agree. And I believe that's the direction where Car2X is going; but it is a fact that multiple technologies are available, and how they are meshed together remains unclear to me. We will find out more... 

docdivakar
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Re: A Road Ahead for Connected Cars
docdivakar   8/22/2013 9:24:12 PM
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What I worry about the most is that a majority of consumers will not understand the implications on privacy and security and unwittingly (like the opt-out nonsense) give away their personal information while owning and driving a 'smart' car. Many services that are in use today are possible without Car2X-Communication described in this article.

While there is some justification for services like navigation, tollways, emergency services (in scenarios of accidents for first responders, yielding way to emergency vehicles on highways, etc.), what bothers me is that the electronics & automobile industries are forging ahead implementing these 'smarts' in automobiles with little or no debate where an average (& not so well-informed) consumer is involved.

MP Divakar

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