Power line communications (PLC) refers to the concept of transmitting
information using the electrical power distribution network as a communication
channel. This technology allows a flow of information through the same cabling that
supplies electrical power. This novel idea of communication helps in bridging the gap
existing between the electrical and communication network. It offers the prospect of
being able to construct intelligent buildings, which contain many devices in a Local
During the last years the use of Internet has increased. If it would be possible to
supply this kind of network communication over the power-line, the utilities could
also become communication providers, a rapidly growing market. On the contrary to
power related applications, network communications require very high bit rates and in
some cases real-time responses are needed (such as video and TV). This complicates
the design of a communication system but has been the focus of many researchers
during the last years. Systems under trial exist today that claim a bit rate of 1 Mb/s,
but most commercially available systems use low bit rates, about 10-100 kb/s, and
provides low-demanding services such as meter reading.
The power-line was initially designed to distribute power in an efficient way,
hence it is not adapted for communication and advanced communication methods are
PLC integrates thetransmission of communication signal and 50/60 Hz power signal
through the same electric power cable. The major benefit is the union of two
important applications on a single system. The data link appears 'transparent' to the
user. Although the devices are connected through the power line, consumers perceive
that there is a “separated” link available for data communications. Since the existing
power lines are used for signal transmission, the initial heavy cost and investment for
setting up a data communications system is avoided. Setting up such a
communications system then involves installation of transmitter and/or receivers at
The project aims to thoroughly explore the theoretical and practical aspects of
power line communications (PLC) techniques. We placed ourselves a number of goals
at the start of the project.
To gain a detailed knowledge of the challenges faced by PLC techniques
To explore the theoretical and practical aspects of PLC.
To research and design a working PLC and on/off control system.
To use the design and implement a power line communications system that
connects two personal computers and moreover one should be able to transmit
command over the power line to switch on/off an electrical device. The PC should be
able to transfer data using the power lines as their only link of communication.
Related Projects : : : Voting Machine,VHDL Modelling of Glue Logic of 1553b Interface Board,Variable Power Supply,Traffic Light Control System,Towers of Hanoi,The Nove DA,TENS Unit,TeleRemote,Telephone Triggered Switches,Telephone Router,Telephone Answering Machiner,SPEEDES Qheap,Speed Sensor,Service Channel Terminating Unit for Digital Microwave System,RTOS (VX Works) Based Control And Safety Monitoring,Radar Data Acquisition System,Packet Analyzer,Online Device Controller,Network Monitoring System Communication,Multiplier Accumulator Component VHDL Implementation,Multidimensional Visualisation System,Multi-Channel Infra Red Remote Control,Microwave Bandpass Filter,Microprocessor 8085 Trainer Kit,Microcontroller Based Cellular Voting Machine