Multi-axis Motion Control System Human-machine Interface Design And Control Strategy

Multi-axis coordinate motion control has close relations with processing of curving surface or axis, twisters and multi-axis linkage numerical control machine tools. These equipments are indispensable not only to the area of national defence, aeronautics and astronautics, but also to the area of manufacture for industry and civil use. So its problems related have been paid much attention to by many researchers in the area of automatic control and machine automation. Two aspects have been studied in this thesis, one is man-machine interface of the multi-axis control system, the other is study about coordinate control multi-axis strategies of multi-axis control system.Man-machine interface is the foundation of correctly using the multi-axis control system. An excellent man-machine interface not only satisfies the special function requirements, but also has friendly interface for convenient operations. Base on the principle above, using PC and PMAC, man-machine interface of the four-axis control system is designed in the environment of Visual C++. It realizes following functions: (1) system communication between PC and PMAC; (2) parameters setting; (3) programs and control parameters download, state parameters upload; (4) handle and automatic control panel; (5) three dimensions simulation and so on. In addition to these functions, a PCB circuit board carving process code creating module is designed in this thesis which is based on numeric image processing.Multi-axis coordinate control strategy is the core of the multi-axis motion control system. It influences performances of the motion control system directly. Aiming at solving the coupling problem between each axis, conventional strategy is PID in the multi-axis motion control system. This strategy is robust to some extent, but it only realizes local stabilization around the stable state point. So it hardly satisfies wide speed adjustment and disturbance range requirements in processing of complex curving lines or surfaces. The nonlinear motion control strategies are studied in this thesis in order to improve the performances of the multi-axis motion control system. Development process of the strategies is reviewed in this thesis. A...