GPS has become the global wireless standard used for location, timing and synchronization information. This 24-Satellite Constellation system is openly available for public use, and can be detected anywhere in the world there is open-sky sight. Since May 1st 2000, the commercial GPS signal (L1) is now accurate to an average of <10 meters. Other methods such as DGPS can get within < 1 meter! Popular GPS Applications include:
- Mapping - Find your destination path in relation to where you are located.
- Personal Locator - Find out where a person (or pet) is located.
- Timing Synchronization - Synchronize your cellular / network station to the most accurate atomic clock in the world.
GPS is generally considered a one-way wireless technology since it only provides location / timing information at the intended receiver. However, when used in conjunction with other wireless technologies, GPS enhances the capability of today's hottest wireless technologies: GPS + ZigBee,
GPS + Bluetooth,
GPS + WiFi ( 802.11a/b/g ),
GPS + Cellular.