The Design And Implementation Of Flight Conflict Detection Software Based On OSG Drawing

With the development of information technology in modern military, flight conflict detection is the key part of air combat command. Flight conflict detection software aims to develop detailed and strict flight plans, and detect conflicts between flight plans to meet the needs of air combat command. For such demand, this thesis designs and implements the flight conflict detection software.This software is a part of a air combat command system. This system is designed with "frame+plug-in" technology, using QT graphical interface library and OSG 3D rendering engine to show and manager air situation. This software is a plug-in of application layer in this system, aims to generate,deduce flight plans and detect conflicts of them. This thesis completes the following work:By analyzing the needs of software, this thesis puts forward the architecture design and data storage design, separates the software by 5 modules:scheme development and management, enemy analysis/battle disposition, flight plans development, flight plans deduction and flight conflict detection, and gives the detailed design of each module.By analyzing the background research status and study abroad, this thesis summarizes the advantages and disadvantages of these technologies, puts forward the improvements, and designs a algorithm of static airlines conflict detection between two airplanes. By modeling, algorithm process designing, route segment conflict calculating, this thesis elaborates the calculation condition and process of the algorithm. By testing, the deviation of conflict period calculation is less than 0.1s, and calculation time is less than n2/5ms(n:number of airplane), which shows good accuracy and timeliness.Finally, this thesis implements the flight conflict detection software. Armymarks and dynamic targets are drawed by OSG; Information of flight plans is managed by DOM; Flight conflicts are detected by flight conflict detection technology. The accuracy and performance test shows the accuracy and reliability of the software is good.