30.可以提升家用电力线通信速度的光学式模拟前端

The use of high-voltage power lines to carry voice signals has a history dating back to the early 1920s, with low-frequency amplitude-modulation systems operating over lines with voltages as high as 220,000 providing reliable voice links between power generating stations and dispatcher’s offices. Later, the power utilities’ carrier-current communications systems were refined to use single-sideband (SSB) multiple-carrier technology, and gradually expanded to include telemetry providing continual monitor- ing of load, voltage, and other power-system characteristics, as well as remote control of switching stations in remote locations.
Optical-based Analog Front End for
Low-Speed Powerline Communications
In The Home

White Paper
The use of high-voltage power lines to carry voice Lighting control
signals has a history dating back to the early Low-speed data communications networks
1920s, with low-frequency amplitude-modulation
Signs and information displays
systems operating over lines with voltages as
high as 220,000 providing reliable voice links Fire and security alarm systems
between power generating stations and
dispatcher’s offices. Later, the power utilities’ These applications and frequencies are very
carrier-current communications systems were different from the Broadband over Powerline
refined to use single-sideban