Research On Simulation Platform Of Small Unmanned Helicopter Control System

UAV is a reusable unmanned aircraft which to be controlled by its own procedure or wireless remote, with low cost, easy-to-sue, application of a wide range of feature, attached importance by the growing number of countries. However, the UAV control is very complicated, there are many uncertain factors, there have many difficulties to direct esperimental research on unmanned aircraft. Therefore, that' s a natural choice to set up a UAV flight control simulation platform. On the one hand, it can simulate online for the structure and the method of control;On the other hand,it can create intuitive, lifelike three-dimensional virtual simulation of the aircraft, it gives a realistic to reaearchers. This is not only accelerate the pace of development of the system , but also save a lot of expenditure.The thesis reviews the research status of the small unmanned helicopter flight control system, elaborates on the modeling process of the UAV dynamic model of the various component modules. Through simplif icate the UAV models and coorainate transformation, it builds a flight dynamics non-line of the mathemation model of the small unmanned helicopter that induing 12 state variables and 4 control variables, with get four bands Longge Coulthard solving differential equations law and gives the program design of the algorithm. As to the controller simulation, it is necessary to consider the current control methods have been used to facilitate further research or compare, it also allow researchers to facilitate the increase in their control methods. The paper designed structure of UAV flight control including the stability and control loopcircuit. The former stability the UAV attitude;On the basis of vertical plane symmetry the latter divided into vertical and horizontal control structure, the fomer achieve the pitch angle and maintain a high location, the latter achieve roller control.On this basis,it constructs a helicopter 3D visualization of flight simulation model and the instrument panel with OpenGL. In VC++ development environment, it designs the controller and the visual simulation platform GUI. The platform is a scalable software system to achieve necessary basis function of a UAV flight control system to study.It can research the contents of the state and control variables, and can add new features when the users required and new meun to achieve control function and verificat control rule, it can meet the flight control software needs of the different users.On the simulation platform, the users can choose the parameters type and set the parameters values, the researchers can easily design the control system and make simulate online. It can improve the efficiency of research and lay a sound foundation for follow-up research.