Title: Implementation of dynamic reconfigurable interpolator for open architecture CNC by using FPGA

Authors: Xiaoyong Ni; Hongjian Zhang; Dianhong Wang; Jian Luo

Addresses: Department of Mechanical and Electronic Information Engineering, China University of Geosciences (Wuhan), Wuhan, Hubei, China ' Luojia College, Wuhan University, Wuhan, Hubei, China ' Department of Mechanical and Electronic Information Engineering, China University of Geosciences (Wuhan), Wuhan, Hubei, China ' Department of Mechanical and Electronic Information Engineering, China University of Geosciences (Wuhan), Wuhan, Hubei, China

Abstract: Functionality and cost are two key factors for open architecture machine tools. Dynamic reconfiguration technology provides a method to achieve more functions at low cost. Hardware dynamic reconfiguration is special feature of FPGA devices. In this paper, a dynamic reconfigurable interpolator with linear, circular and NURBS interpolations is presented. The functions of interpolator can be reconfigured during machining. The requirement for logic resource on-chip reduces evidently, which makes it feasible to implement complicated interpolations using a limited area. Experimental results are presented to verify the performance of the dynamic reconfigurable interpolator.

Keywords: dynamic reconfiguration; interpolation; field programmable gate arrays; FPGA; non-uniform rational B-splines; NURBS; computer numerical control; open architecture CNC; open architecture machine tools; CNC machining; reconfigurable interpolators.

DOI: 10.1504/IJES.2017.081727

International Journal of Embedded Systems, 2017 Vol.9 No.1, pp.45 - 53

Received: 05 Apr 2015
Accepted: 16 Jun 2015
Published online: 24 Jan 2017 *

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