car to car talk is the futuristic feature and soon would become quite useful. The standards used and regulation is something to watch for. Also there are so many car manufacturer would this communication be independant of mfr. or each of them would have their proprietary.
I agree Bert this is posisble to accomplish...and km to miles conversion is so dumb simple that I am still amazed that multi-million dollar programs trip over this (including US rocket launch)...but car is a car, I want 100% probablity that it will drive, not 99% like my PC working or not 95% that WiFi will be working (I was visiting a major US University recently and my laptop would refuse to read emails despite having correct PHY connectivity, probalem was at the MAC or higher level of hierarchy)...and I don't want my car operation being dependent on talking to some other car...Kris
Bert, I can read your post too...hurray!, US English to Canadian English translation is working well ;-)...the reason is that Internet was invented and build quickly around the globe...
I agree that this is not always the case, but the reason that devices can interoperate over the Internet is that those who develop the protocols have so far seen the advantage of doing it this way. Enlightened self-interest.
Where I work, we used to have a complicated scheme of Softswitch gateways, to allow our IP, SNA, IPX, and DECnet networks in the company to interoperate. It didn't work very well, because naturally, it was practically impossible to make all the features of each protocol translate correctly into an equivalent feature of another protocol.
So, the auto industry can take it upon itself to follow the example of the IETF, or actually participate and use the IETF to ensure interoperability.
Different units of measure are no problem. Software can easily convert between them. All you need there is to identify the measurement standard along with the measurement, when you write the message standard. Or alternatively, the message frames can be mandated to always use the same system, say the metric system, and then any local display of the information can translate to the user's preference. (My car already allows this, btw, for the instrument panel.)
Analog radio, old-style vinyl records, and even CDs, have always interoperated globally. It's not impossible to achieve this. If there's a will, that is.
I agree with the decentralized nature of the V2V discussed here. It is very tempting to try to centralize this, similar to centralized Air Traffic Control. As the article says, the latencies would be a real problem. That being said, there are still a lot of details to be worked out. Presumably the communications protocol would be self-describing and versioned, which would eliminate the "inches versus meters" problem mentioned earlier. If it included identification information and vehicle information (specifically speed) then police radar would become unnecessary (there's a selling point for you...). It would become very easy to put fixed receivers in place to track at least how many cars pass a particular point and potentially exactly who they are (another boon for the police). My first thought was that a decentralized implementation would have fewer privacy concerns, but that lasted about two minutes.
@BrainiacVI, exactly. The auto industry is famous for dragging its heels.
Aside from seat belts, there is also an issue with backup cameras. The idea was to equip all new cars with backup camera so that drivers can see what's behind their car. It was almost mandated last year, but it fell through. Here's a clip from Auotmotive News.
DOT proposed rules in 2010 that would have required backup cameras in all new cars and light trucks. Final rules were delayed multiple times after automakers and White House officials raised concerns over costs. Before leaving office this year, Transportation Secretary Ray LaHood set a new goal of completing the standards by 2015.
I agree Zewde...unless government decides to mandate this technology it will be useless...hopefully there is enough push back against any attempts to legislate this...I don't want my car to be networked to anything!...the givernment should focus on delivering something useful like public transportation, buses are much more efficient than cars and they can network them as much as they want, I won't be behind the weel...Kris
@zewde, obviously, this won't happen overnight. But either a mandate (needs rulemaking) or an industry auotmotive safety rating (safety stars?) could help propel the penetration of cars with DSRC technology.
Bert, I can read your post too...hurray!, US English to Canadian English translation is working well ;-)...the reason is that Internet was invented and build quickly around the globe...other communication standards are different story...and I wil mention again km to mile translation, major engineering projects (space rockets, missiles, cars) failed because someone forgot to convert to units...I really don't want to have more technology in my car pls, I just to want to drive! Kris