#1楼主：Blue force tracking ( Copy from WiKi )
文章发表于：2008-08-14 04:33
Blue Force Tracker is a United States military system that helps to provide commanders with information about their forces.
In Military symbology, the color blue is typically used for friendly force elements, red is used for enemies, and green is used for neutral forces.
Blue Force Tracking system consists of a computer, satellite antenna and Global Positioning System
receiver. The system displays the location of the host vehicle on the
computer's terrain-map display along with other platforms in their
respective locations. BFT can also be used to send and receive text
messages and Blue Force Tracking has a mechanism for reporting the
locations of enemy forces and other battlefield conditions. Users will
include the United States Army, the United States Marines Corps, the United States Air Force and the United Kingdom, but the Marines primarily use the Mobile Data Automated Communications system
to provide situational awareness. To ensure that Marine force locations
will be visible in U.S. and British Army command centers, the Marines
have installed more than 200 BFT systems as well. Work has begun on
plans to reach the level of nearly 40,000 tracking systems in the Army
within four years.
A Blue Force Tracking technology is system called Force XXI Battle Command Brigade and Below, or FBCB2.
The system continually transmits their actual locations over the FBCB2
network. It then monitors the location and progress of friendly forces
and sends those specific coordinates to a central location called the
Army tactical operations center. There the data is consolidated into a
common picture and sent back out to units,
The system also allows users to input or update operational graphics
(i.e. obstacles, engineer reconnaissance on the road. Once uploaded it
can either be mailed back to higher headquarters or 'mailed' to other
subscribers of that user's list.
An additional capability comes from the route planning tools. By
inputting grid coordinates the BFT becomes both the map and compass for
motorized units. With proximity warnings enabled the vehicle crew is
made aware as they approach critical or turn points.