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The Research of Multi-axis Motion Controller Based on DSP+FPGA

Author: ZhangBaoQuan
Tutor: YangShiXing
School: Xi'an University of Science and Technology
Course: Control Theory and Control Engineering
Keywords: Motion controller CNC system DSP FPGA
CLC: TM571.6
Type: Master's thesis
Year: 2005
Downloads: 949
Quote: 12
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Abstract


The open CNC is the most active branch of the NC system . Open motion controller is the core of the numerical control system . For CNC system , the most important requirement is in accordance with the command and control of each axis motor sports predetermined trajectory , the implementation of this function is to be completed by the motion controller . Motion controller for its unique flexibility and excellent trajectory control capabilities many industrial production equipment and full of vitality . With the development of microelectronics technology and semiconductor process , the performance of the DSP chip continuously improve and costs continue to decline , but specifically for motor control DSP chip also emerging , therefore , most of the high - performance motion controllers using the DSP chip as the core . Complex algorithms and functions can be achieved not only make the DSP - based motion controller and with the development of hardware and software , there is a certain degree of flexibility ; peripheral circuits using discrete components , will be due to the larger number of reliability is not high. In this paper, the principle of the motion controller , the the DSP FPGA core design motion controller programs . The program will be a combination of DSP and FPGA , on the one hand, the DSP as the core of the motion controller processor , flexible programming capabilities , real-time complex speed control algorithm to improve the control performance ; the other hand, a large number of logic control functions and peripheral interface circuit is integrated in the FPGA to improve the reliability and stability of the motion controller . The same time, as in the field of reconfigurable FPGA has characteristics to ensure the motion controller has good openness also greatly facilitate the design and commissioning of the system . Firstly, the main fields of application of the motion controller , Research to do an overview ; followed by a general study of the classification and principle of the motion controller ; then analyze the basic components of the motion controller and its key technologies ; on this basis on a combination of CNC engraving machine system , the completion of a the DSP FPGA core , multi-axis motion controller soft , hardware design , and proven the feasibility of the design and stability .

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CLC: > Industrial Technology > Electrotechnical > Electrical > Controllers,contactors, starters,solenoid > Controller > Special controller
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