4/25/14

2014 Technology Reports

Mr. Welch (5th/6th)

GPS

by me

Intro

You’re lost in a dark forest at night. Everybody is afraid and cold. You don’t know where you are. What will you do? If that’s the case, all you need is a gps. That’s it! Just that one gps tracker. It can be for your car, hiking, traveling, and anywhere you need it. You can go anywhere without getting lost! It can track your house by just typing the address in. The most awesome navigation resource about the gps is all right here in this report.  One of the things you will read in this report is about the history of the gps like people used it in the World War 2. Next, you will read about GPS satellites, like how there are 27 satellites in space but only 24 are working because … you find out!  Finally, you will read about very interesting facts that will light your house on fire! I’ll bet you didn’t know that GPS stands for Global Positioning System!

All about GPS

According to http://www8.garmin.com/aboutGPS/, The Global Positioning System (GPS) is a satellite-based navigation system made up of a network of 24 satellites placed into orbit by the U.S. Department of Defense. GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use. GPS works in any weather conditions, anywhere in the world, 24 hours a day. It works anytime, anyday, anywhere!

         A GPS receiver determines its location in many ways. According to www.funtrivia.com, some ways to determine its location is by receiving information from a satellite on its location and what time the signal was sent, comparing the difference in time between when the signal was sent from a satellite, when it was received by the receiver, and by using that number, and the speed of light, to calculate how far away the satellite must be. It also determines its location by using this information from several satellites to pinpoint the exact location and by converting this to the coordinate system of choice.

        The first GPS satellite was launched in 1978. A full constellation of 24 satellites was achieved in 1994. Each satellite is built to last about 10 years. Replacements are constantly being built and launched into orbit. A GPS satellite weighs approximately 2,000 pounds and is about 17 feet across with the solar panels extended. Transmitter power is only 50 watts or less.

        

GPS SATELLITES

                

GPS has their own satellites to make it work! According to http://en.wikipedia.org, GPS satellites are satellites used by the NAVSTAR Global Positioning System (GPS). The first satellite in the system, Navstar 1, was launched February 22, 1978. Also, there are 27 satellites in space but only 24 are working because 3 that can’t work got burned up. The first of those 24 satellites was sent up in 1989. Also, here are more than 30, including a couple of spares. Their orbits are spread out so that no matter where on Earth you are, you will have at least six of them in your line of sight.

This paragraph is about how each GPS satellite goes around the world once every 12 hours. According to royal.pingdom.com, gps satellites travel 12,000 miles above us at roughly 7,000 miles. They have small boosters so they can adjust their path when needed.

        You will be surprised with all the interesting facts of the GPS. According to http://www8.garmin.com/.  The first GPS satellite was launched in 1978. A full constellation of 24 satellites was achieved in 1994. Each satellite is built to last about 10 years. Replacements are constantly being built and launched into orbit. A GPS satellite weighs approximately 2,000 pounds and is about 17 feet across with the solar panels extended. Transmitter power is only 50 watts or less.

Interesting Facts

        GPS isn’t just used for navigating places. According to royal.pingdom.com, gps isn’t just used for navigation. It is used for many other different reasons.  It can be used to get a very exact time stamp. Also, every GPS satellite has multiple atomic clocks and the time is included in the signal it sends out! With the help of these signals, a GPS receiver can determine the current time within 100 billionths of a second. These signals are for example used to synchronize base stations in cell phone networks. I think that is really awesome because I thought it was just used for navigation. How awesome is that!

        

This paragraph is about the prices. According to http://www.gps-basics.com/, gps prices range from about $90-$1,000! $90 is just for a basic handheld model, and $1,000 for a high-end vehicle navigation system. I thought that was really expensive that some gps cost $1,000. I don’t even have $90!!! By the time I need a gps, I hope they aren’t too expensive as $1,000.

       

This paragraph is about one of the histories of the gps. According to http://en.wikipedia.org/, The design of GPS is based partly on similar ground-based radio-navigation systems like LORAN and the Decca Navigator. They were developed in the early 1940s and used by the British Royal Navy during World War II.

        

This paragraph is about the world’s first in-car navigation system! According to www.lomography.com, it was designed and created in the 1930’s. It’s more like a “map guidance tool” since it didn’t really give voice prompts and directions (and didn’t use satellites ). In my opinion it looks a little like a child’s toy. Scroll maps are attached to a cable, and functions like the modern mechanical speedometer to make it work. How fast the map rolls as projected on the screen depends on the vehicle’s speed. The only problem was, if you needed to make a turn to a new street, you’d have to find the map for that street and swap that in a jiffy, but now the modern gps have improved over time.

Works Cited

 

"Everything you ever wanted to know about GPS." Royal Pingdom RSS. Tech Blog, 23 Mar. 2010. Web. 28 Apr. 2014.

        <http://royal.pingdom.com/2010/03/23/everything-you-ever-wanted-to-know-about-gps/>

"GPS Basics." - Learn the basics about GPS. N.p., n.d. Web. 12 May 2014. <http://www.gps-basics.com>.

"Iter Avto: The World's First GPS-Like Navigation System." Lomography. N.p., n.d. Web. 21 May 2014. <http://www.lomography.com/magazine/lifestyle/2011/06/09/iter-avto-the-worlds-first-gps-like-navigation-system>.

"Global Positioning System." Wikipedia. Wikimedia Foundation, 27 May 2014. Web. 27 May 2014. <http://en.wikipedia.org/wiki/Global_Positioning_System>.

"What is GPS?." Garmin. N.p., n.d. Web. 30 May 2014.

<http://www8.garmin.com/aboutGPS/>.

"GPS - A timed quiz game." GPS - A timed quiz game. N.p., n.d. Web. 27 May 2014. <http://www.funtrivia.com/html5/index.cfm?qid=231419>.

"What is GPS?." Garmin. N.p., n.d. Web. 27 May 2014. <http://www8.garmin.com/aboutGPS/>.