基于以太網(wǎng)實時多軸運動控制研究與實現(xiàn)
[Abstract]:In recent years, with the continuous development of industrial technology, the proportion of production automation in the actual production process has increased year by year. The requirement of motion control precision and flexibility of numerical control equipment in the application field is also increased. Field bus technology, which is widely used in industry, has been widely used in industry, although it has gradually developed towards decentralization and networking, but there are still some problems such as too many standards, poor compatibility, high cost, low speed and so on. It is difficult to meet the demand of high precision and high flexibility for CNC equipment in the market. In addition, with the rise of network technology, network technology has been widely supported and developed rapidly. Its wide application, uniform standard, low cost and fast speed are gradually recognized by people. Each major industrial manufacturer has also developed real-time industrial Ethernet based on network technology and applied it to the motion control of NC equipment to realize all kinds of technical requirements of the new industrial control field for CNC equipment. But most real-time industrial Ethernet standards use dedicated network chips, which are expensive to develop. Therefore, it is necessary to develop a real-time and efficient motion control scheme with high precision and flexibility. In this paper, firstly, the shortcomings of the traditional bus motion control system in the development process and the advantages of Ethernet communication technology are analyzed, and a real-time motion control scheme based on Ethernet communication technology is proposed. The communication format of the control Datagram is redesigned on the basis of the UDP/IP Datagram, which is used to realize the effective transmission and feedback of the control data. The design structure of FPGA PHY is used to realize the function of real-time data transmission and communication. In FPGA, the network packets are unpacked and packets are processed and the application data are extracted. The extracted data is used to generate the waveform needed for the axis motion control, and the axis motion control is realized. Finally, the control data transmission test is carried out using the format of the packet, and the corresponding experimental results are given. The experimental results show that the design has strong real-time and stability, realizes the multi-axis motion control of the equipment, basically meets the needs of practical application, and solves the problems of complex application and high cost of the existing real-time communication technology. It lays the foundation of communication technology for high performance industrial control system.
【學(xué)位授予單位】:哈爾濱理工大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:TP273;TP393.11
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