Research on Real-Time Control Strategy of CNC System in WINDOWS98

摘要

In this paper, a sophisticated real-time control strategy of Computer Numeral Control (CNC) system is presented. The interruption capture of the hardware timing and interpolate ending are solved by using Virtual Device Driver (VxD) technique. A speed control algorithm is proposed to control the real-time position in closed-loop control system. Main thread, control thread, interpolation thread and interpretation thread are adopted to finish the real-time working process of NC machine by using synchronism and communication among these threads.