The Global Positioning System (GPS) is the fully functional Global Navigational Satellite System which will help in determining the location, speed/direction and time with the assistance of 24 medium earth orbit satellites. Known as a useful tool for mapmaking, land surveying, commerce, and scientific uses, GPS is now a widely used navigation aid world wide. It is also used for various applications including study of earth.
The current GPS is divided into three major segments called space segment (SS), control segment (CS), and user segment (US).It is the navigation message broadcasted by GPS satellites that provides the time-of-day, GPS week number and satellite health information.
The history of GPS traces back to the early 1940’s when the World War II was on full swing. But it was the launching of Sputnik in 1957 by Soviet Union that paved for later developments in this field. A team of U.S. scientists under Dr. Richard B. Kershner were involved in research to monitor the movements of the satellite Sputnik, which later resulted in the technological development of GPS.
There are chances of the speed of GPS getting affected by the inconsistencies of atmospheric conditions. But this can be improved with the correction of these errors.
In the advanced modern world, GPS is mainly used in various daily life equipments including mobile phones. These devices help in making mobile phones more sophisticated and technologically advanced. With the mobile phones connected with GPS, the user will find it no hard to understand the location, climatic conditions and other geographical details.
Nowadays, GPS devices are connected with cars, helping the drivers in getting the exact knowledge of the geography, climate and details ensuring safe driving at strange areas.
By: Alice Erin
Posts Tagged ‘Global Positioning System Gps’
GPS Devices Are Now Used For Other Purposes Too
February 10th, 2010Posted in Article
Tags: Atmospheric Conditions Control Segment Exact Knowledge Geographical Details Geography Climate Global Positioning System Global Positioning System Gps Gps Devices Gps Satellites Kershner Medium Earth Orbit Navigation Aid Navigation Message Navigational Satellite Orbit Satellites Satellite Sputnik Satellite System Space Segment Strange Areas World War Ii
Types of GPS Systems
January 15th, 2010
The global positioning system (GPS) is a very accurate and sensitive equipment to monitor the movements of any object and to provide needful information to the receiver. Originally used by the US Defence Department to monitor the movements of the ships or planes and also to detect encroachments of their sea or air space, this utility was later made available for public use. The system receives signals from satellites and provides the user with details about the position of any object and the timing of any event. There are three phases like Space, Control and User. The Space and Control sectors are under the supervision of the Government, but user facility has been made free from Government control.
Many private enterprises are manufacturing and marketing the GPS systems for commercial use. Today it is widely used to monitor the movements of vehicles as well as to locate stolen vehicles. GPS are also used to track shipments of goods. The system is being used to prevent crimes like hijacking and kidnapping which are widespread. In modern life the GPS is used to locate missing persons during travels. In racing and similar types of sports activities, GPS has become an effective tool to locate and retrieve vehicles as well as the persons involved. Educational and commercial uses of GPS are becoming popular due to the efficiency and accuracy of the system. The GPS plays a vital role in the information technology for mapping details of locations from websites. The antenna on the receiver picks up satellite signals which then calculate the distance between the location and the receiver. The system is used in aircrafts to provide automatic navigation and enable them to fly in the right course.
As GPS has many applications, those who want to use the system should choose the right device to obtain required benefits from it. Portable GPS with or without mapping facility are available. The device without mapping facility is cheaper than its counterpart with mapping. The portable facility is powered by batteries whereas vehicle mounted GPS will have 12 V wiring with antenna installed inside the vehicle. There are GPS which can be linked to the laptops. Varieties of GPS are in use today. Car GPS systems, handheld GPS, car tracking system and map based navigation system are some of them.
Internet is a good source to seek information about the GPS devices that are used for diverse purposes. The shoppers should locate a reputed dealer to avoid ending up with substandard products. Special features or requirements are to be specially mentioned while placing orders. Many online dealers offer free shipping and cheaper price tags with exemptions from the taxes. The buyers should take care to get the system installed only by the manufacturers or their authorized dealers to avail warranty benefits.
By: Victor Thomas
Posted in Article
Tags: Air Space Aircrafts Antenna Automatic Navigation Counterpart Defence Department Encroachments Fac Global Positioning System Global Positioning System Gps Government Control Gps Systems Hijacking Mapping Facility Missing Persons Private Enterprises Satellite Signals Sensitive Equipment Space Control Sports Activities
Tips For Finding a Discount Handheld GPS
January 6th, 2010
Discovering the world around you with out getting lost is sometimes a challenge. But with the help of discounted handheld GPS receivers, the adventure gets a lot easier. Hiking, biking or just traveling along the open road can sometimes be a challenge if you are unsure of where you are going.
Maps are okay, but they can be cumbersome and you normally have to pull off the road to get a real good look at them. The next best thing to a map would be a GPS navigational unit which tells you how to get to where you want to go, usually turn-by-turn by a calm, woman’s voice.
There are many advantages to having a GPS navigational receiver in your car or pocket when you set out on a road trip or hiking adventure. One is that the global positioning system (GPS) will help you from getting lost because the 24 satellites orbiting the earth twice a day are there to triangulate your position. Two, there are settings on the GPS which allow you to leave a ‘bread crumb’ trail for you to find your way back to where you started from, both from walking and in your car.
To find a discount handheld GPS receiver unit you need to do a little research and find the best quality for the lowest money. Not all low priced GPS units are cheap and not all high priced GPS units are good quality, you just have to shop around, do some comparison shopping. Read the reviews in consumer magazines that do the comparison shopping for you or on the Internet websites where writers and actual customers have used the discounted GPS units and are willing to put the truth out there about the GPS products and their experiences with them.
Once you have done your homework and figured out which handheld GPS receiver you are going to purchase, you need to find out where the discounted ones are. The Internet is the ideal place to begin shopping for discount handheld GPS receivers; it seems everyone is selling them now and at very low prices. However, make sure you are getting the ‘real McCoy’ because sometimes people are selling refurbished GPS units as original units, not that there is anything wrong with a refurbished GPS unit, it’s just that you need to know what you are getting. You can also try the manufacturer’s website; they often run specials or sales during the slower times of the year to move their products along and this means saving for you.
Another way to find discount handheld GPS receivers is to go to the auction websites and see if you can bid on a good used one. there are some sites that run like a regular auction where you place a bid and wait to see if you are the highest bidder, but others have recently implemented a ‘buy it now’ policy were there is a predetermined price and you can buy the handheld GPS navigation system for a reasonable price or a discounted price right now and not have to wait.
By: Charlie Lee
Posted in Article
Tags: Best Quality Bread Crumb Comparison Shopping Consumer Magazines Crumb Trail Discovering The World Earth Day Global Positioning System Global Positioning System Gps Gps Products Gps Receiver Gps Units Handheld Gps Receivers Homework Internet Websites Maps Real Mccoy Receiver Unit Road Trip Satellites
