Title :
A control system with high speed and real time communication links
Author :
Li, Tianjian ; Fujimoto, Yasutaka
Author_Institution :
Dept. of Electr. Eng., Yokohama Nat. Univ.
Abstract :
Technological advances have enabled distributed control systems to be implemented via networks. This allows feedback control loops to be closed over a communication channel. This paper develops a control system with high speed and real time communication links. The two-degree-of-freedom control is utilized in this servo control system and delta-sigma modulation is employed to compress data and transmit the signal over the transmission channels between the controller and the servomotor. Simulations and experimental results show that it is possible to compensate the noise in signal transmission channels. In addition, FPGA is used in the control system and the communication system to realize high-speed control system with 0.6 mus sampling period and latency. The data is also compressed and transmitted with FPGA in the experiments
Keywords :
closed loop systems; delta-sigma modulation; distributed control; feedback; field programmable gate arrays; machine control; real-time systems; servomechanisms; telecommunication links; FPGA; closed feedback control loops; communication channels; data compression; delta-sigma modulation; distributed control systems; high speed communication links; high-speed control system; noise compensation; real time communication links; servo control system; signal transmission channels; two-degree-of-freedom control; Communication channels; Communication system control; Control systems; Delta-sigma modulation; Distributed control; Feedback control; Field programmable gate arrays; Real time systems; Servomotors; Servosystems;
Conference_Titel :
Advanced Motion Control, 2006. 9th IEEE International Workshop on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-9511-1
DOI :
10.1109/AMC.2006.1631624
