A multi-dimensional integrated design framework for CNC system

With regard to the challenges for CNC system design stemming from the diversity of design requirements, a multi-dimensional integrated design framework is proposed in this paper, which can provide a convenient and efficient way for CNC system design. As an important part of this framework, a modelling language is developed based on IEC 61499 and hierarchical policy. By encapsulating CNC functions into function blocks and constructing the control system in a bottom-up way, a variety of architectures of CNC system can be flexibly built. To investigate the reliability of CNC system in the early stage of the design, formal verification is combined into the design framework With formal model and specification, the dynamic and static properties of a CNC system can be automatically verified by use of model checking. Deliberating the multi-objective characteristic of system performance, the design framework employs the multi-objective optimization technique to detect the most appropriate design scheme. To achieve the seamless integration between the above steps, a design platform in the form of a tool chain is developed, which can effectively improve the efficiency of system design. At last, an experiment on the design of a motion controller is conducted, by which the validity of the proposed framework can be proved.