Research on automatic control of ship navigation based on DSP
In order to improve the safety of navigation and enable ships to better adapt to various complex navigation environments and task requirements through the application of automation devices,a DSP based automatic control method for ship navigation is studied.This method first establishes a nonlinear mathematical model for ship navigation,and uses this model to obtain three degrees of freedom data of lateral and longitudinal sway and bow sway of the ship during sea naviga-tion.Then,based on DSP,a ship navigation controller is established.In the logic processing module of the controller,the output results of the nonlinear mathematical model for ship navigation are input into the PID optimization algorithm and CMAC neural network model,respectively,By using these two algorithms,the final parameters of comprehensive ship nav-igation automatic control are obtained,and the control parameters are input into the ship navigation drive module using PWM and ADC modules in the DSP module to achieve automatic ship navigation control.The experiment shows that the nonlinear mathematical model of ship navigation established by this method has strong effectiveness,can achieve control of ship rudder angle and heading control,and its control of ship navigation overshoot is small,with good sensitivity.
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