Research On Simulation Of Forest Fire Fighting Based On The HLA

Virtual Geographic Environment (VGE) created by geographical information system, virtual reality technology, multi-dimension visualization techniques provides a new platform for the forest-fire spreading and its visualization and the fire fighting simulation. With the High Level Architecture (HLA), the lasted developed computer technology, developed from the technology of distributed interactive simulation, the distributed fire fighting simulation system becomes one of the important issues in the fire and the fire fighting simulation. With the above consideration, this thesis is intended to render a basic research on forest landscape and fire mode and present a newly-developed general Forest fire fighting simulation system (prototype), which maximumly utilize the HLA theory and the regulation of recycling and interactive operation.The followings are the key topics of this thesis based on the principle and method of the virtual forest landscape and the forest-fire spreading:1. The advancement of related research fields is summarized detailedly in two aspects: the simulation of forest fire fighting and the technology of the distributed interactive simulation. An approach for constructing the distributed virtual forest and fire fighting system based on the Virtual Geographic Environment (VGE) and the High Level Architecture (HLA) is presented.2 This thesis, from the angle of the demand of constructing the forest fire fighting system, not only researches the the principle and the method of constructing the forest fire spreading model and the fire fighting simulation and the elements of the Virtual forest environment, but also the three-dimension, virtual forest, the tool for fire fighting.3. This thesis, in order to meet the requirements of performing simulation tests on multiple scenarios, proposes a forest fire fighting simulation system based on the High Level Architecture. With this system, users can rebuild the application of federation system by reforming the target system.4. The conceptual model of the forest fire fighting simulation system and the federation object model based on the HLA are designed. Then the basic federation which includes the terrain federation, forest fire federation, forest federation and tool federation is constructed. The key techniques, such as FOM/SOM design, federate framework design, the run mechanism of simulation, are also studied in the process of constructing of the system.5. Forest fire fighting software is designed and developed on the basis of what this thesis...