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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Vol. XXXVII. Part B4. Beijing 2008 
can realize the configuration and management for watchman, 
fire extinction team personnel by intuitionally showing 
watchman, fire fighting crew, fire point and all others on 
electronic sand map in 3D model mode and can query relevant 
attribute information of various watchtower, watchman and fire 
fighting crew. 
System can realize import for two dimensional SHP formatted 
file for forest map, fire risk grade graph, forestry plot, 
administrative map and other thematic maps, can realize 
deletion, appending, modification and other operations and can 
realize query for various mottling attribute informational and 
control whether various thematic maps are showed with 
separable layer mode after joining attribute table. 
Where water system, road and inhabited area are coded by 
sorting in area, it can realize query by connecting the attribute 
information of various ground objects, carry out localization 
search for watchtower, toponym, watchman and fire extinction 
team and carry on conversion latitude and longitude 
geographical coordinates and plane rectangular coordinates. 
At the same time system possesses three-dimensional analysis 
functions of measuring distance, area, excavated volume, 
intervisibility analyses, flooding analyses, query gradient, slope 
aspect and other geography parameters and localization 
observation and others. 
User can define a random flight route to realize three- 
dimensional flight, reserve flight route for next time to flight 
along route, record roam path and carry out playback, and 
export the browse window content for a high resolution image 
printout. 
3. REMOTE SENSING AND GEOGRAPHIC 
INFORMATION SYSTEM TECHNOLOGY 
APPLICATION 
The digital elevation model (DEM) is established by adopting 1 : 
50 000 state regular topographic map. By adopting satellite 
remote sensing image as surface chartlet, it reflects the same 
surface configuration as the field and is clear at a glance for 
stream, vegetation, road, inhabited area and other information. 
By using the geographic information system technology to 
superpose both, it forms the three-dimensional electronic sand 
map of the region. 
Because a variety of information (including road, stream, 
building, residential area and others) in electronic sand map are 
fabricated using satellite image renewal, the marked geo 
information are very exact, which furnishes detailed reliable 
gists for fire fighting commanding and would not occur the 
command decision error caused by inaccurate geo-information. 
Three-dimensional electronic sand map can make forestry area 
become solid and make stream, highway, bridge culvert, 
building and other ground objects assume an intuitionistic, 
tridimensional and vivid show. Commander can simulate a 
flight visit on different height and at arbitrary angle, in this way 
commander can master a variety of geo-information and data 
quickly, at the same time it is convenient for making out 
correct commanding decisions because electricity, water, 
correspondence and other infrastructure information are 
showed in three-dimensional sand map. 
It can randomly simulate fire field and smog on three- 
dimensional electronic sand map. Commander can work out a 
concrete scheme of attacking a fire according to landform and 
relief of mountain, shorten time of transporting troops and 
make it to be thrashed early, with its size reduced, and finished. 
It can carry out the marking once again for newly-built 
highway and redirecting stream on three-dimensional electronic 
sand map by using GIS technology to ensure practicability and 
authenticity of electronic sand map. It can append road width, 
pavement situation and others, convenient for query and search 
of attribute information. In three-dimensional electronic sand 
map it can directly query relevant information of each location, 
such as the watcher name, telephone and other information of 
watchtower, various forest plantation fireproofing background 
and others. It can measure the distance of beeline and 
curvilinear between two random spots on electronic sand map 
to calculate the fire scene area and also search out longitude 
and latitude co-ordinates and rectangular coordinates at the 
same time. 
System can superpose the administrative map, fire risk grade 
graph, forest right property graph, forest map and other 
thematic map. to realize the intuitionistic management for forest 
resources. 
When a fire occurs, with an azimuth reported by two random 
watchtowers that can observe fire situation, system can 
ascertain the fire position automatically by intersection method 
and set a simulation fire point. Commander can observe the 
relief of mountain, stream and pond, road traffic and other field 
situations on different height and at a variety of angles by using 
aero-browse. And it can judge out the fire developmental 
direction and fire widespread speed according to this day's 
climatic conditions, judge out the fire field distance away from 
highway quickly and exactly at the same time, find up the 
optimal routes of transporting troops and work out the optimal 
schemes of attacking fire. Commander can also judge out 
marching speed and time of transporting troops of various 
teams of attacking fire, thereby master the troops of attacking 
fire in hand, furnish vigorous indemnification for putting out a 
hill fire quickly and make it become three early and two fast in 
deed. After fire is stifled, we can exactly figure out the fire 
field area on the electronic sand map and can make out the 
label on the electronic sand map at the same time to furnish 
reliable data for future reference. 
4. GPS TECHNOLOGY APPLICATION 
System adopts an integrative system of integrating GPS, data 
transmission and interphone call function. By combining 
electronic sand map, very short wave communication system 
with global positioning system (GPS) together, it can realize 
the connection, disconnection, track playback and other various 
functions of telecommunication equipment and GPS, which 
furnishes a fast and convenient mode for instant monitoring and 
exact positioning. System device is divided into two parts of 
communication command administrative center and mobile 
terminal. Administrative center is a hardcore part of the system 
with the core of computer and data transmitter, which can call 
and query mobile individual concrete information, or swap data 
or instruction among mobile bodies. Mobile body is an 
individual who works in the open or fieldwork. They can 
receive GPS satellite positioning information and carry out 
mutual communication with the center, make administrative 
center have an entire and intuitional understanding for remote 
operation or present fire field situation, convenient for