The Study And Implementation For Control Method Of Rendezovus And Docking Ground Simulation System

With the rapid development of space technology and increasing strategic position, space dock operations have become an important task. The rendezvous and docking simulation system is an important means to verify the effectiveness of guidance and control in the final stage. According to the function of control system, the paper completes control software of rendezvous and docking simulation system of ground control subsystem part.Firstly, this paper uses embedded PC/104 CPU platform as the controller, single-chip computer system for composing of drive system, reaction wheel and cold jet system as executive body, inertial measurement unit and the vision system as the measuring devices and industrial control computer as a monitor computer. These parts make up of the hardware structure of control system.Secondly, this paper uses Microsoft Visual C++ 6.0 as development tools which develop the procedure of monitor computer and spaceborne computer. This paper also introduces the MSCOMM control to realize the serial communication, uses the API function to achiece the network communications and makes use of the multi-buffer and multi-threaded technology to design the control interface of the monitor computer. This design follows Intuitive, simple guidelines and principles of consistency and completeness.Last but not least, in order to eliminate the error of measurement signal in control system, this system uses the gradually faded memory filter for filtering. And this system also adapts the improved PID algorithm and active disturbance rejection controller to solve the contradiction between overshoot and the fast character of control systemFinally, through system debugging, repeating trial and improvement, the rendezvous and docking ground simulation device system achieved the expected goal and achieved good results.