基于ARM的电力线载波通信研究(8)

毕业论文 基于电力线载波通信、基于OFDM技术、应用MAXIM公司芯片做了一个电力线通信终端

ABSTRACT

Power line communication(PLC) uses power line as communication media for data transmission and information exchange．With the advancement of the technologies of modulation and signal procession，PLC has been developed greatly．With the technology of Orthogonal Frequency Division Multiplexing(OFDM) using in PLC，the reliability and speed Of PLC transmission arrive at a new height．There are many PLC applications，such as Home-Bus for making the intelligent building，automatic meter reading and, so on．

The work is as follows：The characteristics of the power line channel are studied, which contain multi-path attenuation, impedance changes and many varying noise; OFDM is the key technology to realize high speed PLC．First，the theory, realization and key technology of 0FDM are analyzed and studied．Finally, the PLC based on power Line channel is simulated By MATLAB；Based on the PLC solution of MAXIM corporation’s IC which are MAX2986 and MAX2980,a PLC modem is designed and tested；The MAXIM PLC modem is applied to design a new automation metering system which can realize internet access and automation meter reading.

Key Words: PLC, Power line communication, Orthogonal Frequency Division Multiplexing,MAX2986