NDLI: Implementation of 2-axis Circular Interpolation for a FPGA-based 4-axis Motion Controller

Content Provider	IEEE Xplore Digital Library
Author	Weihai Chen Zhaojin Wen Zhiyue Xu Jianhua Wang
Copyright Year	2007
Description	Author affiliation: Beijing Univ. of Aeronaut. & Astronaut., Beijing (Weihai Chen; Zhaojin Wen; Zhiyue Xu; Jianhua Wang)
Abstract	To satisfy the motion control of numerical control machine and robot, this paper introduces an approach to implement 4-axis motion controller based on field programmable gate array (FPGA). Starting with introduction to existing excellent 4-axis motion controller MCX314, this paper describes the fundamental structure of the FPGA-based 4-axis motion controller. As the one of main function modules in controller, the implementation of 2-axis circular interpolation module in FPGA is the main content to be discussed in the paper. Employing a novel analogy digital differential analyzer (DDA), the interpolation module avoids plentiful complex on-the-motion computation with skillful combination with the hardware structure of FPGA; hence the real-time performance and precision are enormously improved. In the paper, the principle of algorithm and approach of hardware implementation are discussed in detail; with introduction to the structure of the circular interpolation module, a testing platform is developed to evaluate the performance of the module. The testing experiment indicates that the performance of controller is excellent, and the implementation approach will be valuable for domestic research and development about the motion controller.
Starting Page	600
Ending Page	605
File Size	958239
Page Count	6
File Format	PDF
ISBN	9781424408177
DOI	10.1109/ICCA.2007.4376426
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-05-30
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interpolation Motion control Field programmable gate arrays Automatic control Hardware AC motors DC motors Instruments Automation Computer numerical control analogy DDA FPGA motion controller circular interpolation
Content Type	Text
Resource Type	Article

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