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Open type numerical control system based on PC

A numerical control system and PC technology, applied in the direction of digital control, electrical program control, etc., can solve the problems of high development cost, poor software and hardware compatibility, poor real-time performance, etc., and achieve the effect of low development cost, good compatibility and fast response

Inactive Publication Date: 2008-06-11
HARBIN INST OF TECH
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  • Abstract
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Problems solved by technology

[0007] The present invention provides a PC-based open numerical control system to solve the problems of poor real-time performance, high development cost and poor software and hardware compatibility of the existing CNC system based on WINCE.

Method used

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  • Open type numerical control system based on PC

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specific Embodiment approach 1

[0019] Specific embodiment one: referring to Fig. 1, this embodiment includes the following units:

[0020] PC machine 1, described PC machine 1 is based on Windows operating system;

[0021] The numerical control device 2 is used to receive the control command sent by the PC 1 and complete the execution of the real-time task of the numerical control machining;

[0022] The hardware interface board 3 is used to establish the connection between the PC 1 and the numerical control device 2 and generate an interrupt signal as an interrupt source to stop other tasks of the PC 1 and only perform real-time tasks of numerical control machining;

[0023] It also includes the following units:

[0024] The CNC module 5 schedules real-time tasks through the real-time scheduling module 4 to realize the movement path of the CNC machine tool from the part processing program, manage the part processing program stored in the program buffer, compile the part processing program, tool path inter...

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Abstract

An open numerical control system base on PC machine is provided, which relates to a numerical system base on Windows, and is used for solving the problems in the existing numerical system based on Windows, such as poor real-time performance and high development cost, as well as the problem in a numerical system based on WINCE of poor compatibility between hardware and software. A real-time scheduling module of the invention is used for establishing connections between PC machine and a hardware interface board and scheduling real-time tasks; a CNC module is used for establishing sharing memory area in the memory of PC machine and connecting with the real-time scheduling module, as well as realizing position controlling function through the real-time scheduling module schedules real-time tasks; a PLC module realizes a logical controlling function through the real-time scheduling module schedules real-time tasks; a man-machine interface module transfers input path procedure, set operation mode and data collocation of operating system to real-time task and displays execution result of real-time task to user; the real-time scheduling module, the CNC module and the PLC module are all embedded in the Windows operating system, the man-machine interface module is a universal Windows procedure.

Description

technical field [0001] The invention relates to a numerical control system based on Windows operating system. Background technique [0002] At present, Windows series operating systems occupy a dominant position on PCs. Its standard and beautiful graphical user interface (GUI) and convenient and quick operation methods have not only been accepted by ordinary users, but also more and more users in the field of industrial applications. more. [0003] However, Windows is a multi-tasking operating system. The software and hardware resources of the PC are shared by multiple programs, resulting in poor real-time performance of the system. If the system resources are occupied by other programs, the CNC program cannot meet the real-time requirements. The requirements for real-time and continuity are very high, so it is difficult to guarantee real-time performance under the Windows operating system environment, and it is difficult to apply it in real-time control systems. [0004] ...

Claims

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Application Information

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IPC IPC(8): G05B19/414
Inventor 李凤阁佟为明李彬杨锋唐贵杰
Owner HARBIN INST OF TECH
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