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Fuzzy PID control method and execution apparatus of numerical control machine

A control method and technology of CNC machine tools, applied in the direction of digital control, adaptive control, electrical program control, etc., can solve the problems of intelligent control technology that is far from being popularized, unable to eliminate steady-state errors, and poor static performance.

Active Publication Date: 2007-04-25
中国科学院沈阳计算技术研究所有限公司
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Problems solved by technology

[0004] The development of intelligent control technology has gone through a period of time, but it is still in the pioneering research stage, and there are many theoretical problems that have not been resolved. For example, the commonly used two-dimensional fuzzy controller has good dynamic performance, but poor static performance. Steady-state error cannot be eliminated
These problems make intelligent control technology far from being popularized in industrial process control as it is in household appliances

Method used

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  • Fuzzy PID control method and execution apparatus of numerical control machine
  • Fuzzy PID control method and execution apparatus of numerical control machine
  • Fuzzy PID control method and execution apparatus of numerical control machine

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Embodiment Construction

[0052] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0053] (1) Fuzzy PID control method of CNC machine tools

[0054] Referring to Figure 1, the human-machine interface, task coordination, motion control and programmable controller are used, and the motion control and programmable controller are loaded in the kernel space of the system, and the human-machine interface and task coordination part are loaded in the user space of the system. communicate with each other through the system's shared communication buffer; where:

[0055] The man-machine interface is used to accept operation commands and workpiece programs, to display the processing process of the implementation device of the present invention, and to realize the interaction between the machine tool operator and the implementation device of the present invention.

[0056] Task coordination consists of two parts: state management and artifact program i...

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Abstract

This invention discloses a digital control machine fuzzy PID control method and its realization device, which adopts human to machine interface, task transfer, movement control and programmable controller to load the movement control and programmable controller onto inner space of system and to load interface, task transfer part onto system user space interacting through common communication buffer area; the movement control comprises movement plan and axis control parts to form process machine servo axis movement by use of fuzzy PID control method to determine axis control parameters for stable control.

Description

technical field [0001] The invention relates to a numerical control device control technology, in particular to a numerical control machine tool fuzzy PID control method and a realization device, which can realize intelligent self-adaptive adjustment of control parameters of a machine tool servo axis. Background technique [0002] In recent years, with the progress of manufacturing technology, CNC machining process and machining parts are becoming more and more complex. The control requirements of complex parts and processes make it difficult for the control methods of existing devices to meet the system performance requirements. Take the PID (P stands for proportional, I stand for integral, D stands for differential) control method adopted by the existing numerical control device as an example to illustrate. The PID control method has a long history, and is widely used in the axis control of numerical control devices because of its simple principle and easy implementation....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18G05B13/02
Inventor 林浒于东盖容丽郭锐锋
Owner 中国科学院沈阳计算技术研究所有限公司
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