V2V: How the vehicle-to-vehicle communications work?




Vehicle-to-vehicle communications moved one step closer to reality this week with the Obama administration’s plans to push the technology forward. The February 3rd announcement outlines a set of proposed rules would be announced for comment by the time this administration departs in 2017, with hopes that sometime around 2020, cars will communicate with each other and alert drivers to roadside hazards ahead. What happened this week was a plan by the National Highway Traffic Safety Administration to have a plan.

Simply put, the first generation of V2V systems would warn the driver but not take control of the car. Later implementations would improve to brake or steer around obstacles and eventually merge with self-driving cars. Here’s our rundown of V2V technologies and some of the implications…

What is V2V?

Vehicle-to-vehicle (V2V) communications comprises a wireless network where automobiles send messages to each other with information about what they’re doing. This data would include speed, location, direction of travel, braking, and loss of stability. Vehicle-to-vehicle technology uses dedicated short-range communications (DSRC), a standard set forth by bodies like FCC and ISO. Sometimes it’s described as being a WiFi network because one of the possible frequencies is 5.9GHz, which is used by WiFi, but it’s more accurate to say “WiFi-like.” The range is up to 300 meters or 1000 feet or about 10 seconds at highway speeds (not 3 seconds as some reports say).

V2V would be a mesh network, meaning every node (car, smart traffic signal, etc.) could send, capture and retransmit signals. Five to 10 hops on the network would gather traffic conditions a mile ahead. That’s enough time for even the most distracted driver to take his foot off the gas.

On the first cars, V2V warnings might come to the driver as an alert, perhaps a red light that flashes in the instrument panel, or an amber then red alert for escalating problems. It might indicate the direction of the threat. All that is fluid for now since V2V is still a concept with several thousand working prototypes or retrofitted test cars. Most of the prototypes have advanced to stage where the cars brake and sometimes steer around hazards. Why? It’s more exciting for a legislator or journalist to see a car that stops or swerves, not one with a flashing lamp.

Traffic signals or other stationary devices are called V2I, or vehicle to infrastructure. Often they’re just rolled into the V2V umbrella to avoid too many TLAs (three-letter acronyms). Some automakers have their own terms for V2V such as Car-to-X, which encompasses other vehicles and the infrastructure. There’s also a push for the term “internet of cars” playing off “internet of things“ as well as the broader term “connected car” which covers telematics as well and the popular-press term “talking car.” V2V seems to be the phrase that’s winning out.
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Microsoft's dilemma on Windows Phone and Android?


I’ve just had an interesting idea (which is pretty rare at the end of a long, hard week). What if Microsoft’s new CEO, Satya Nadella, drops Windows Phone in favor of Android? This might seem crazy, given the amount of time and money that Microsoft has put into Windows Phone — but desperate times call for desperate measures, right? Adding credence to this idea is the Nokia X (codenamed Normandy) — a Lumia-style phone that runs Android. This mid-range phone, despite Microsoft’s acquisition of Nokia, still looks like it’s going to come to market this spring. Is it possible that Microsoft is waiting to see how the Nokia X does, before making a decision on the continuation of Windows Phone?

Now, there is obviously a lot of inertia against this idea. Microsoft has worked very, very hard to make Windows Phone a viable third option alongside iOS and Android. It’s not quite there, but it’s getting tantalizingly close. Presumably, Windows Phone 8.1, due out in the first half of the year, will finally push us over the “hey, this is actually really cool” threshold. Likewise, and perhaps more importantly, Microsoft has spent a lot of time and money cultivating an army of Windows Phone app developers — developers that, confronted with the runaway success of iOS and Android, probably took a lot of convincing.

Skype, phone dialler, and other apps on Nokia's Normandy device
Skype, phone dialler, and other apps on Nokia’s X (Normandy) smartphone, running a custom version of Android
But, at some point — possibly soon — Microsoft may just have to cut its losses and make the jump to Android. The hard truth is that Windows Phone, despite being on the market for over three years, has a worldwide market share of just a few percent. 2013 was a good year for Microsoft, with the success of Nokia’s Lumia phones almost doubling Windows Phone’s global market share — but, really, when you get right down to it, going from 2% to 3.5% isn’t something to get all that excited about. In the same time period, Android went from 75% of the market (2012) to 81% (2013). Unless something utterly catastrophic happens to Android or iOS — unless Windows Phone can somehow grow faster than Android — this situation is unlikely to ever change.

Forking Android

If Microsoft did decide to switch its mobile efforts to Android, it would likely end up forking the Android Open Source Project and making its own version, just like Amazon. Judging by leaked photos of the Nokia X, which has a UI that looks a bit like Windows Phone, it looks like Nokia might’ve already begun the process. Microsoft would then have to make a very important decision: Whether to seek Google certification and access to Google Play’s library of one million apps, or to strike out on its own, like Amazon. The second option might seem a little bit crazy after the painstaking process of building an app ecosystem for Windows Phone, but the Amazon App Store seems to be doing okay. Microsoft wouldn’t have to get developers to write brand new apps for its Android phone — it would just have to get developers to re-submit their apps, perhaps with a few tweaks for any UX disparities.

There’s no reason that your Microsoft Account couldn’t be used to automatically populate your contact list, sync to OneDrive, and bring over many of your other Windows Phone settings. Microsoft already has a fair bit of experience developing for Android, too; Skype, Microsoft Office, and all the various connectors for your PC are already there. There is already an Android version of Nokia’s Here maps. As far as Microsoft is concerned, moving to Android wouldn’t be that painful (thousands of developers, who have spent millions of hours writing Windows Phone apps might be a bit upset, though).

It actually makes quite a lot of sense…

It’s also worth pointing out that Microsoft also appears to own a lot of patents related to Android. Over the last few years, Microsoft has successfully negotiated licensing deals with every major Android device maker. There are rumors that Microsoft gets as much as $15 per Android device sold, resulting in billions of dollars per year in revenue (much more than Windows Phone makes). If Microsoft forked Android, it would be able to undercut other Android device makers significantly — or, alternatively, it would make one hell of an incentive for device makers to switch from Google’s flavor of Android to Microsoft.

Nokia Lumia 920, running Windows 8
What a Windows 9 device might look like
Windows 9

Another possibility, which I’m quite fond of, is that Windows Phone is probably going to disappear anyway. Microsoft has dropped a few hints that it’s moving towards a single, unified platform for smartphones, tablets, and PCs — likely starting with cross-compatibility between Windows Phone and Windows apps, but eventually the whole kit and caboodle could be merged. In such a scenario, it’s possible that Android could be kept on as a cheap, low-end alternative — which is exactly what Nokia appears to be doing with the Normandy/X.

When all’s said and done, though, it’s hard to say whether it would actually be advantageous for Microsoft to switch its mobile efforts to Android. It’s tempting to say “go on, do it, what’ve you got to lose?” — but, really, that’s not exactly a sound business decision. There is absolutely no guarantee that a Microsoft fork of Android would be a success. The hardware would almost certainly be nice, but the software ecosystem — the most important bit — is hard to predict.

Microsoft would be starting back at square one with 0% of the market, and it would still be an uphill struggle against its two nemeses — neither of which are going to stand still while Microsoft tries to turn the oil tanker around. Ultimately, even with a new CEO at the helm, I doubt Microsoft has the balls to switch to Android. It sure would make the mobile market a bit more exciting than the current two-horse race, though…
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The student Doodle contest kicked off by Google



It gets more visitors than any art gallery and more clicks than any other single site on the Internet. Imagine getting your own drawing on Google's homepage.
Google is giving aspiring student artists and inventors a rare chance to get their original artwork on the heavily trafficked Google.com. The company is kicking off a Doodle 4 Google contest, and any student in the United States, grades kindergarten through 12, can submit their own doodle between now and March 20.
The theme of this year's contest is "If I Could Invent One Thing to Make the World a Better Place ..." If your idea is especially brilliant, you might want to patent it before showing it off to the entire world or having it turned into a top-secret Google[x] project.
In addition to a $30,000 scholarship and a tech grant to their school, the winner will make a trip to Google headquarters and work with its Doodle team to turn their drawing into an animation. The winning entry will appear on Google.com on June 9.
Even as ads and other detritus have filled search results, Google's search-engine homepage has stayed clean, sparse and almost always free of ads. (Google has made exceptions to push its Nexus 7, Nexus One and Motorola Droid devices.)
The classic multicolored Google logo sits on top of the search bar in the middle of the white page. But over the years, the logo itself has been altered for fun and some smart brand marketing. These artistic "doodles" direct visitors to information on topics they might normally have overlooked, from filmmaker Ingmar Bergman to writer Zora Neale Hurston.
"It's kind of like the mission behind having a search engine that can bring you all the information in the world," Google Doodler Sophie Diao said. (Her business card actually lists "Doodler" as her job title.) "We can help users find something or learn about things that they otherwise might not."
The first Google Doodle was posted in 1998, when the company founders took off for Burning Man and decided to drop a stick figure into the regular logo as a sort of "Gone Fishing" sign. Over time, the company started marking the occasional holidays with decked-out logos, and the doodle took off.
Now they mark important historical occasions and bring attention to people and topics that might otherwise be overlooked, such as Simone de Beauvoir's 106th birthday, the 66th anniversary of the Roswell Incident and the 100th Tour de France.
The doodles are usually created by a team of 20 Google employees, including 10 artists and three engineers, at the company's Mountain View, California, headquarters. They make about a doodle a day, though many are only for specific regions of the world, so not everyone will see them on their Google.com homepage.
You can see every doodle from around the world at Google.com/doodles.
The altered logos take different forms. Most are static illustrations, but there are also animations and games. Some of the biggest hits are elaborate interactive doodles, like the winter-themed Zamboni game, which can take months to create. Clicking on a doodle brings up search results for that topic.
In addition to hosting the winner for a day, the Doodle team will help an official group of judges sort through entries and pick the best drawings. The public will be able to chime in and vote on their favorites.
"We're looking for doodles that kind of feel at once very personal and relatable and are also a showcase of the student's creativity," Diao said.
Last year's Doodle 4 Google contest winner was 18-year-old Sabrina Brady, who created an image of a returning U.S. soldier hugging his young daughter. She has gone on to use her scholarship money to enter art school.
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