Title :
Power supply overlaid real time communication system with OFDM for Industrial Robot Control
Author :
Koga, Hirotaka ; Kurosaki, Masayuki ; Ochi, Hiroshi
Author_Institution :
Corp. R&D Center, Technol. & Dev. Div., Yaskawa Electr. Corp., Kitakyushu, Japan
Abstract :
This paper presents a design of power supply overlaid real time communication system for industrial robots, and presents development of industrial robot power line channel model emulator on FPGAs. The power supply overlaid communication provides a way to reduce the control cables in industrial robot. Although the interference from AC/DC power signal and Inter-Symbol Interference occur in the power supply line, OFDM reduce the problem. Hence we were designed and fabricated an FFT based OFDM transmitter and receiver for robot power supply overlaid communication. Our system data rate reaches 81 Mbps. It enables to control the industrial robot which needs real time operation.
Keywords :
OFDM modulation; carrier transmission on power lines; fast Fourier transforms; field programmable gate arrays; industrial robots; intersymbol interference; radio receivers; radio transmitters; AC-DC power signal; FFT; FPGA; OFDM receiver; OFDM transmitter; industrial robot control; industrial robot power line channel model; intersymbol interference; power supply line; power supply overlaid communication; OFDM; Power supplies; Printed circuits; Real-time systems; Receivers; Service robots;
Conference_Titel :
Communications and Information Technologies (ISCIT), 2012 International Symposium on
Conference_Location :
Gold Coast, QLD
Print_ISBN :
978-1-4673-1156-4
Electronic_ISBN :
978-1-4673-1155-7
DOI :
10.1109/ISCIT.2012.6380893
