Flight Control System Software Design For UVA Based On VxWorks

Flight control software is one of the most important part of UAV flight control system, it becomes more and more important and determines the success of the flight directly. This paper designs the UAV flight control software based on the real time operation system VxWorks, and put forward a new approach to design the flight control software based on"equivalent flight control". It Designs the embedded part and windows part respectively on the different period of the software development.The control and navigation modules of flight control software were designed based on Windows, the driver and the rest of the functional modules of flight control software were designed based on embedded environment, the control and navigation modules can be transplanted 100%.Firstly, it develops the driver of flight control software based on new MPC565 target.These driver contains the MPC565 serial and the relevant hardware resources of target Board.In addition, the driver of the other PC104 I/O board can be transplanted from existing driver.Secondly, Based on VxWorks multitasking mechanism, it transplants the functional modules of FCS to VxWorks environment.These functional modules including: Actuators module, Sensor module, Test module, Remote module, Device module such as the module.Finally, based on"equivalent flight control", it develops equivalent flight control software useing Win32-POSIX libraries in the VC6.0 development enviroments.Meanwhile,based on the WIL-UDP network of communication mechanism, this paper designs the equivalent flight control simulation system,that is used to verify the accuracy of control and navigation modules of flight control software .All of the works have an comprehensive test and emulation.The result shows that the method of flight control design based on"equivalent flight control"is conscientiously feasible in project.