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One of the most important types of movement for a robot to detect is its own. Robots can do this using what is called an accelerometer. An accelerometer measures acceleration with tiny levers. When the robot accelerates in one direction, it moves the lever, which is detected by the circuitry.
This technology can be used by robots... more »
The Global Positioning System (GPS) was developed by the U.S. Department of Defense. The only system of its kind in the world, GPS uses the transmission of microwave signals from a network of 24 satellites orbiting 12,000 miles above Earth to pinpoint a receiver's location, as well as its speed and direction of travel. Initially... more »
Heading off into the backcountry often presents a trade off between solitude and safety. Even if you've spent years hiking trails alone and armed with just a map and a compass, you'll appreciate the security offered by a few, lightweight, electronic wilderness aids. more »
A hand-held GPS is an accurate device that uses a GPS signal from multiple satellites to determine a location on Earth. Commercial hand-held GPS devices can focus to within 30 meters, while devices used by military personnel are capable of locating as close to 5 meters. In the last 10 years, sales of the hand-held versions have... more »
The GPS, or Global Positioning System, is a system of 24 satellites that were placed in orbit by the U.S. Government for military use. They were used in US Military vehicles and on "smart weapons" for group positioning and terminal guidance. In the 1980s, however, the government made the system available for civilian use. While the... more »
If you have a habit of getting lost, then you need to learn about GPS units. With a little...
Global Positioning System (GPS) devices have become increasingly popular over the years and can...
Tired of getting lost on the road and fighting over who will ask for directions? It may be...
How many GPS devices are enough? That question cannot be answered unless you know the reasons...
With the increasing wave of electronic and telecommunication technology, Global Positioning Systems emerged in the 2000s as an essential tool for... more »
Fortunately for frequent travelers, using the Global Positioning System to track your vehicle is a cinch and can be performed via a variety of... more »
One of Sirius Satellite Radio's (now SiriusXM) first exclusive agreements was with the Chrysler Companies, placing the radio in Dodge, Jeep and... more »
Handheld GPS, or global positioning systems, use military and civilian satellites that orbit Earth in geosynchronous orbit. In other words, these... more »
The Global Positioning System is the world's only functioning satellite-based navigational system. It consists of a network of 2-3 dozen... more »
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