Novel intelligent real-time position tracking system using FPGA and fuzzy logic

作者：Soares dos Santos Marco P; Ferreira J A F

来源：ISA Transactions, 2014, 53(2): 402-414.

DOI：10.1016/j.isatra.2013.09.003

• Automation
• Field programmable gate array
• Fuzzy logic
• Real-time control systems
• Pneumatics
• Position tracking
• Control

The main aim of this paper is to test if FPGAs are able to achieve better position tracking performance than software-based soft real-time platforms. For comparison purposes, the same controller design was implemented in these architectures. A Multi-state Fuzzy Logic controller (FLC) was implemented both in a Xilinx (R) Virtex-II FPGA (XC2v1000) and in a soft real-time platform NI CompactRIO (R)-9002. The same sampling time was used. The comparative tests were conducted using a servo-pneumatic actuation system. Steady-state errors lower than 4 mu m were reached for an arbitrary vertical positioning of a 6.2 kg mass when the controller was embedded into the FPGA platform. Performance gains up to 16 times in the steady-state error, up to 27 times in the overshoot and up to 19.5 times in the settling time were achieved by using the FPGA-based controller over the software-based FLC controller.

• 出版日期2014-3