Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (2): 82-87.

• Mechanical Engineering • Previous Articles     Next Articles

Schemes of Software and Communication Interface Design for Computerized Numerical Contral System

Feng Shou-ring  Li Di  Gao Jun-li   

  1. College of Mechanical Engineering,South China Univ.of Tech.,Guangzhou 510640,China
  • Received:2005-04-19 Online:2006-02-25 Published:2006-02-25
  • Contact: 冯寿廷(1978-)，男，博士生，主要从事工业自动化及运动控制的研究 E-mail:rouder@163.com
  • About author:冯寿廷(1978-)，男，博士生，主要从事工业自动化及运动控制的研究
  • Supported by:

    广东省科技攻关资助项目(2002C1020407，2003A104 0703)

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Abstract:

In order to rapidly design a real-time multi-task software prototype of CNC r Computerized Numerical Control)system,the MDD(Model-Driven Development)method is applied to the modeling analyses of the require-ment,the structure and the behavior.Based on the requirement analysis.the functional requirements of CNC soft-ware are obtained,and these functional requirements are then mapped into classes or objects via the structure analv-sis.By the behavior analysis,the actions of these classes or objects are established. Moreover,the problems of communication interface between the host and the slave are solved in the designing of a real-time multi-task CNC system ,and the communication reliability is thus guaranteed.Moreover ,a communication interface scheme based on HPI(Host Port Interface)is presented by analyzing the communication management state machine.With the proposed method and scheme,a CNC system prototype is designed and tested ,and its feasibility is verified.

Key words: numerical control system, real-time software, communication interface, software modeling, digital sig-nal processor, PC/104 bus