A Global Positioning System (GPS) uses a constellation of GPS satellites that orbit the earth. These satellites broadcast messages on radio frequencies that consist of the time of the message and orbital information. A GPS receiver measures the transit times of messages from four satellites to determine its distance from each satellite, and thereby calculate its location. These services equip each vehicle or person they are monitoring with a tracking device using global positioning system (GPS) technology. GPS is a navigation system operated by the U.S. Department of Defense based on satellites that continually broadcast their position, time, and date.
GPS receivers on the ground, which can be attached to vehicles, cell phones, or other equipment, use information from the satellite signals to calculate their own locations. Cell phones are now equipped with GPS. Location tracking has benefits, but it also opens the door to potential invasion of privacy. Many people may not like having their physical movements tracked so closely. The use of location tracking systems described that technology can be a double-edged sword. It can be the source of many benefits, and it can also create new opportunities for breaking the law or taking benefits away from others. The proliferation of LTSs has increased risks to the privacy and security of individuals. For example, LTSs collect location information silently, without the permission or even the awareness of individuals.
Although it appears that individuals have lost control over this information, and hence have lost their privacy, we note that technological devices perform many functions without seeking explicit permission and without notifying affected people. In these cases, informed consent ought to be necessary to balance the privacy rights of individuals against the freedom rights of businesses and the security rights of communities.
(Source: http://www.prenhall.com/behindthebook/0132304619/pdf)
(Source: http://www.prenhall.com/behindthebook/0132304619/pdf)
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