SUCCESS STORIES IN AIR TRAFFIC CONTROL SYSTEMS

ISD DATA AB
VTree® SDK brings 3D Perspective to Realtime Air Situation Awareness Display System

“VTree’s easy to use C++ classes and open scene graph allowed our C++ developers to immediately start generating code with VTree and to use pure OpenGL code when necessary. Additionally, VTree’s cross platform capabilities provide us assurance that the display can be transitioned to other platforms.”


Lars Nyhed
Responsible Developer
for the 3D Air Situation Display

Situation awareness is a fundamental requirement for effective military air traffic control. Without adequate representation of the air space, controllers are left to estimations and best judgment decision-making. Situation awareness forms the basis for air controller decision-making and performance. Equally essential to the success of the mission is raining ground controllers to direct aircraft using situation awareness displays. In support of the Swedish Air Force, ISD developed a fighter controller simulator, TAST, for training of interceptor ground controllers. The goal for TAST is the training of young officers in the Swedish Air Force to control and lead fighter airplanes in combat.

By creating a module based visualiztion system for TAST, IDS can use these displays in other situation awareness applications.

The Swedish Air Force has used TAST for over two years to train controllers. However, as the training of interceptor ground controllers is predominately about relationships between airplanes and air volumes in 3D space, the existing 2D displays are often ineffective as sole training aids. Using only 2D radar displays, graphs, and other situation awareness displays, instructors often find it hard to explain 3D air space relationships. Recognizing that situation awareness displays are critical to the success of the air traffic controller, ISD working with the Swedish defense material administration (FMV) developed a prototype of a 3D situation awareness display system, capable of attaching to the TAST simulator. This new 3D air situation awareness display makes it possible to visualize the entire 3D airspace and its contents in realtime.

The ISD ’s 3D air situation awareness display enables interceptor ground controllers to be more effective by enhancing the student’s ability to think in 3D.

ISD’s 3D air situation awareness display makes the training of interceptor ground controllers more effective by enhancing the student’s ability to think in 3D.
The 3D air situation awareness display makes it possible to visualize the entire 3D airspace and its contents in realtime.
The choice of VTree SDK allowed ISD’s 3D disply to immediately have realtime suport for large area databases and data sets, industry standard formats, and off-the-shelf peripheral devices.

According to the Swedish Air Force instructors, this new 3D situation awareness display will work as an effective training tool to make the students aware of all kinds of 3D related situations. Additionally, the 3D display will be used for after action reviews. After an exercise the new 3D situation awareness display can be used to review and analyze the results of the student’s actions and to grade the student’s decisions.

This new display provides a way to bring available 3D data to a controller system for the first time. The 3D display shows altitude relationships between airplanes, restricted flights areas, and designated training areas in 3D environments, providing better understanding of the events in a 3D space.

Developing with VTree SDK
ISD defined several goals for this display. These included creating a modular system, managing large amounts of data in the realtime 3D display, and the ability for expanding the capabilities of the display to use additional information.

ISD initially developed a test application using pure OpenGL commands. This proof-of-concept application encouraged ISD to continue with the project and to investigate 3D Graphics API to simplify the continued development. After exhausted research ISD selected VTree SDK from Quantum3D, Inc. The choice of the VTree SDK also allowed ISD’s 3D display to immediately have realtime support for large area databases and data sets, industry standard data formats, and off-the-shelf peripheral devices.

One of the hardest aspects to the project was integrating the 3D display as a part of a larger, existing, realtime system. VTree’s flexibility enabled ISD to create a module that could be integrated into a larger system, such as the TAST. Creating a separate module visualization system for TAST allows ISD the ability to use this display in other situation awareness applications.

By using VTree SDK, ISD considerably reduced the time it took to complete the development of the 3D display system. The development has been carried out on an O2 workstation with Irix 6.5 operating system, 175 MHz processor and 128 MB memory. The application is controlled by a set of GUIs and process communication is used for interaction within the application. Currently, the 3D situation awareness display is a prototype; however it is expected to be added to the TAST system in the near future.

For more information on the 3D Situation Awareness display, TAST, or ISD Data AB contact:

ISD Data AB
Attn: Ivar Ekström
Box 135, 182 12 DANDERYD, SWEDEN
Phone: +46-8-753 97 00
E-mail: ivar.ekstrom@isd.se

Learn more about how Quantum3D can optimize your synthetic environment for training and simulation applications. Visit our website at www.quantum3d.com; email us at salesinfo@quantum3d.com, or call us at U.S. toll free 1-800-827-1980, or internationally 408-361-9999.

 

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