Application Research Based On Model Design Method In Unmanned Aerial Vehicle PTZ Control

The PanTilt is a complex equipment carrier that integrates light and electromechanical.It is used to carry high-precision instruments and to connect camera devices and supports.It mainly plays a role of stabilization and fixation.In recent years,with the widespread application of the gimbal in various fields,people’s research on it is getting deeper and deeper.In order to get better use in drone firefighting,a two-degree-of-freedom pan/tilt is designed,which is attached to the water gun.By controlling the horizontal and pitching movement of the water gun,achieving the purpose of the water gun can extinguish the flame in our ideal direction.In recent years,in the context of intelligence in manufacturing,efficiency has become extremely important,and traditional methods of development have not met the needs of the current market.Therefore,the model-based design method is adopted for the control of the two-degree-of-freedom PTZ dual-motor.The significant advantages of this method are short development cycle,graphical programming,and clear logic,which facilitates communication between different designers.Because it is tested while developing,errors can be found in the design process,which greatly improves the efficiency and accuracy of development,and solves some of the bottlenecks encountered in traditional development.Adopt a model-based design method and verify while designing,according to the requirements of the PTZ control system,the requirements documents are listed and the models of each part are built on this basis.After each small module is designed,the model function is verified,the rotor position is calculated by the designed Hall sensor output information processing module,and the FOC controlled output module is added to the motor,and the simulation and experimental comparison are performed to verify the current loop.The accuracy and feasibility of the control algorithm lays the foundation for the subsequent increase of the outer loop.In the process of designing the module,the important algorithm functions of the model are verified one by one,and the requirements consistency,model specifications and defects are checked,and corresponding reports are generated.Finally,a three-closed loop control system experiment of brushless DC motor based on model design was developed in Matlab/Simulink environment,and the results were analyzed.Through analysis,we can see that the designed control system can meet the design requirements,improve the efficiency of system development,and have practical reference for motor development work.