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Automotive telematics will rule, only if GPS keeps working


7/2/2009
By Mark Phillips

Almost a year ago, I wrote a column titled, “I Tele You What: This Technology Will Rule.”
 


Mark Phillips
Almost a year ago, I wrote a column titled, “I Tele You What: This Technology Will Rule.” In it, I discussed telematics and how it’s believed vehicle telematics technology will flourish in the future, potentially creating huge opportunities for the aftermarket. (Vehicle telematics is anything to do with sending, receiving and/or storing information about a vehicle, normally via radio waves.) But there’s a potential hiccup in the underlying technology that may drive much of the tech revolution that some believe will be a boon to the aftermarket.

One very important part of telematics has been and will continue to be GPS or the Global Positioning System. It’s a group of 24 satellites that orbit 12,000 miles above earth and allows GPS users to pinpoint where they are, or for a vehicle to tell where it is in relation to other vehicles, among other things. The U.S. Department of Defense (DoD) is in charge of making sure the system works.

A recent report from the Government Accountability Office (GAO) claims GPS will begin failing next year unless some repairs, upgrades and more satellites are sent into space. The Department of Defense says the GAO’s report is bunk and that it has a plan in place to ensure there are plenty of good satellites overhead to allow GPS to work. In fact, the DoD points out there are plenty of spare satellites to make sure nothing goes awry with GPS.

There’s a whole range of civilian applications for GPS, from finding your way to a family picnic, tracking an ATM that “walks off” in the back of a thief’s truck to, in the future, vehicles telling other vehicles that there’s a traffic jam up ahead. All of this is fantastic stuff, when it works.

In my household, there are three devices with GPS — my phone, my wife’s phone and a GPS unit in my car. But even with all three of these devices in the car on two recent weekends, we couldn’t find where we were going. It took nearly 10 tries between the different devices to actually find the destination we needed to get to. I’ve never had much of a problem with GPS before, but on these two weekends, it just didn’t work. On the most recent trip, GPS put us smack in the middle of a parking lot more than three miles from our destination. My GPS unit said my cousin’s house was literally three parking spaces from a light pole outside a western Pennsylvania mall.

The weekend before, it told me to drive through a building. Hiccups like this have been known to occur with GPS before. While getting bad satellite guidance on a family trip isn’t inherently dangerous, in the future, if we rely on vehicles to alert each other through GPS that there’s a nasty traffic crash up ahead, these little satellite snafus might not be so trivial.

If GPS and telematics are poised to be a potential panacea for the automotive aftermarket, we need to understand some of the technology behind it is reliant on entities other than the aftermarket to make sure it works.
Submit a Comment   Comments (10)
Comment by:
Joe Bob
2/6/2010
10:07 AM
I wish i new superman, Clark Kent is so cool becuase he knows superman
Comment by:
Jimmy Olsen
2/2/2010
3:22 PM
Why don't we just tell Clark Kent when one of them is failing, and he can ask Superman to just fling it out of orbit and let the Martians deal with it?
Comment by:
Matt
1/20/2010
11:21 AM
There's actually 32 GPS satellites currently in orbit, although as of yesterday 4 were offline for maintenance/testing. But more would always be welcome. As others mentioned, without the occasional new satellite, orbit adjustment, etc., the network will eventually fail. The navigation challenges mentioned aren't so much an issue with the satellites themselves, but rather conditions on the ground are the most likely culprit. The type of GPS receivers currently found in vehicles/phones only use a small part of the data being transmitted. As production costs continue to drop, hopefully we'll see carrier phase and dual frequency receivers become available for the average consumer. Although even that alone may not be enough for GPS vehicle collision avoidance systems, especially in urban areas where GPS signals bounce off of buildings, causing increased inaccuracy.
Comment by:
Josh
1/15/2010
5:31 PM
Satellites are in a "decaying orbit." That means eventually the Earth's gravity will pull it into the atmosphere destroying it. Most are launched in such a way that their orbit puts them back in the atmosphere around the time their service life runs out. What goes up must come down.
Comment by:
Chris
1/12/2010
4:23 PM
Too bad there's no way to put a little rocket on them to shoot them back down into the atmosphere when they go bad.
Comment by:
Wolfe
1/1/2010
9:17 AM
The problem with those missles is that there are too many unknown variables. If the dead satalite moves into an unknown trajectory, they have to recalibrate, which takes time due to the distance. That delay can cost a lot of money if the missle explodes near an active satalite. Not to mention that the missle itself can have issues. And even if everything goes successfully, there is still an issue of the smaller parts having too much momentum and destroying or damaging a working satalite. The government hates using them and are only considered in "certain" circumstances. Not to mention that we are not the only company with satalites, which means approval has to pass by others if the dead satalite is too close to someone elses active satalite.
Comment by:
Dan
12/28/2009
2:11 PM
Ed really does know everything!!!!
Comment by:
Ed
12/22/2009
8:44 PM
Mike, satellite destroying missiles are used to remove satellites from orbit, leaving only small debris that burn up upon re-entry.
Comment by:
mike
12/21/2009
7:53 AM
who is going to remove all the non working outdated satellites ?
Comment by:
noob
12/20/2009
6:51 PM
use scoth tape to intergrate it 2 ur toaster XD
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