GPS Volume 2: How features benefit you…and more

Garmin NuviPeople typically use a GPS to determine the best route to their destinations. If you hate busy highways, you can request a route that relies more heavily on local roads, and vice versa. It can help you find the nearest restaurant, gas station and the like and typically offers spoken directions (“turn right at the next intersection”) to help you switch into the proper lane and otherwise make your trip more smooth and problem free.

Once the door is opened, so to speak, GPS technology can provide a slew of information that the driver didn’t know was available.

GPS devices can also:

• Monitor your vehicle mileage
• Keep track of how many miles you drove on your latest vacation or business trip
• Watch your speed for you

If you loan your car to your teenager, you might appreciate that it can record:

• Each destination and the streets driven to arrive there
• How long the vehicle remained at a particular location
• Speed warnings

GPS technology can also come to the rescue if someone steals your vehicle, once it is integrated with your anti-theft system. You can request that the GPS either email you or call you to let you know that your car alarm went off, and to share where the vehicle is currently located.

Worried about car maintenance? Some GPS units can let you know when it’s time to recharge or replace your car battery or to change your oil. If your locks freeze, you can contact your device through your cell phone and unlock your car.

Though GPS technology is gaining popularity in cars, one problem still exists.

Signals can get blocked. If you’re driving through a mountain range, as just one example, GPS devices may not work. The same can happen when you’re traveling through a national state park full of trees or through tunnels. Give the experts time, though, and they’ll most likely improve upon this challenge.


Editor’s note: Discover more about the history of GPS devices and stay tuned for more info about GPS for cars, including the leading brands.

GPS Volume 1: A short history of GPS devices

Advance Auto PartsYou probably have one, either through an app on your smart phone or tablet, or a specific device that you bought and keep in your glove box. You probably already know that these systems are satellite based and, if you use one, you probably wouldn’t want to drive without one ever again. Read on as we get into the nuts and bolts of GPS.

But, where did this GPS technology come from?

All started with the Sputnik, the first Russian satellite that was launched in 1957.  Scientists found out that they could track the satellite’s orbit by listening to changes in radio frequency. In the 1960s, the US Navy developed the TRANSIT navigation system that relied on six satellites (later, ten) to keep track of submarines. Military personnel had to wait several hours, though, to gather information from these signals.

Meanwhile, the Defense Department saw the advantages of having constant navigation information and developed the NAVSTAR system in 1973. By 1978, the first satellite was launched and the system was completed in 1995. Of course, the military have since found countless additional uses for the GPS technology; for example, it is used today in guiding missiles and bombs.

The GPS navigation system uses twenty-four 2,000-pound satellites that send radio signals to Earth about:

• their locations
• precisely when a particular signal was sent

When a GPS receiver on the ground receives information from four or more satellites, it can provide information about its own location (plus its speed and elevation).

The history of GPS systems took a giant leap forward in 2000, when civilian use became practical.

That’s when the military stopped scrambling signals from satellites, previously done for security reasons. Industries such as commercial fishing or freight hauling could then begin relying on GPS technology. Meteorologists use these signals to measure wind speed, while geologists count on these systems to monitor earthquakes. GPS is now vital in multiple industries.

At the same time, more and more consumer products began using this technology as the size and price of GPS devices dropped.

Inevitably, GPS devices and systems found their way into cars.

Early on, companies scrambled to be the first to craft a system that was practical for cars, with Mitsubishi Electric and Pioneer proclaiming success in 1990. That same year, a device called PageLink appeared in a patent application; PageLink provided real-time maps for vehicular use.

In 1994, Oldsmobile offered a GPS system for people who purchased an Oldsmobile Eighty Eight. In 1995, more innovations took place, with Magellan offering a vehicle-based system and Oldsmobile unveiling GuideStar, which was also a GPS system for cars.

Then, in 2000, when the military ended its practice of fuzzing the satellite’s signals, GPS devices became much more available and affordable.

Watch this blog for our next installment on GPS: about the development of GPS technology in cars.

Editor’s note: As your plotting your next moves, check out Advance Auto Parts for a fine selection of GPS devices and other great gadgets. Need a quick gift? Buy online, pick up in store.