Analysis of the characteristics of numerical control operating system

Windows95 numerical control system is mainly developed in the environment using object-oriented programming language, making full use of technology to encapsulate functional modules in the control, so that the structure of the system is organized more clearly and orderly, which is convenient for function expansion and tailoring.

Because it is an open operating system, it is easy to implement open features in the CNC system. The program does not necessarily guarantee that a message will be received on time. Obviously, this timing method cannot meet the high-precision real-time requirements of the system.

Multimedia Timing Interrupt: Due to the need of multimedia, the timing of the system is reprogrammed, providing more accurate timing services in its multimedia extension library. Through these functions, a callback function that can hook a timer interrupt is implemented to implement a timing service with millisecond precision, such as a related timing function definition.

Real-time interrupt research under the platform: real-time control is the key technology of the numerical control system. The functions of the system control part in real-time control mainly include timing sampling, real-time and dual-port communication, etc., and usually involve the display of graphics, images and real-time data, and the user interface of human-computer interaction. Interrupt technology is the driving force behind these functions.

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