Can anyone suggest me some applications of POWER LINE COMMUNICATION?

Question

like easy to build and very useful as well...

Answer 1

Power companies have used their own power lines for communication between switches, stations, etc, for years. In the last few years, this has emerged into BPL (Broadband over Power Line). If this technology fully develops, anyone who has a commercial power line running into their house, or have commercial powerlines near their home, could get high speed Internet access without the distance limitation of DSL or the need for a cable TV cable.

Several cities are running sucessful test markets already, and there is now an after-market use that allows one to extend LAN connections into other rooms using devices that plug into your wall outlets, similar to the technology that emerged years ago to extend telephone jacks, which is another example of using power lines within your home as communication devices.

Intellon Corporation, who has a major presence in Ocala, FL is one of the leading companies in this market. "Homeplug" is just one of these devices, and since this beginning, they have now even higher bandwidth devices.

A third example might be intercomm devices that use your home's internal wiring to pass voice transmissions from one unit to another.