ABSTRACT
Many mechatronic products demand high control accuracy on speed and position control, especially the Antarctic Astronomical Telescope (AAT) that placed in a very bad environment, not only demands high control accuracy, but also requires a strong ability to resist disturbance, a very high reliability and environmental adaptability. Here we design a dual-core back up motion control system based on dsPIC30F and LMD18200 according to the actual situation. By using dual-core backup, digital PI regulating with correction of the integral term and other control strategies, the servo control of the BDC is implemented. The hardware and software design of the DC servo drives are introduced, and the experimental results are also given. This control system can be applied to the Antarctic Survey Telescope (AST3) control system.
