power line communication (English: Power Line Communication, abbreviated as PLC), also known as Power line network , refers to the use of existing power line , will data or information with number The signal processing method is used for transmission. PLC technology uses existing low frequency (50/60 hertz ）The power line of ADSL There are two general applications for using telephone lines, FTTx Using fiber optic lines, Cable Modem Use cable TV lines. use power line communication Technology, basically no need to re lay network lines, and power lines cover a wide range of regions, far greater than lines of other carriers.
power line communication (English: Power Line Communication, abbreviated as PLC), also known as Power line network , refers to the use of existing power line , will data or information with number The signal processing method is used for transmission. PLC technology uses existing low frequency (50/60 hertz ）The power line of ADSL The use of telephone lines can be divided into two general applications, FTTx Using fiber optic lines, Cable Modem Use cable TV lines. use power line communication Technology, basically no need to re lay network lines, and power lines cover a wide range of regions, far greater than lines of other carriers.
The biggest threshold of power line communication in the past was that broadband signals could not pass through smoothly watt-hour meter Follow transformer , this technology has been studied for decades, and has finally made a breakthrough in recent years [When?] 。
Currently, there are commercial power line communication networks Bridge Product, but only supported LAN ， External network Still have to go through DSL Optical fiber Or cable, and the cost and price are still high. Moreover, power line communication takes power cable as the carrier, but in some old areas, its power line circuit has been largely consumed, which may affect the signal quality and thus reduce the actual transmission rate. Home appliances include Microwave Oven , hair dryer, etc. can also interfere with power line communication signals, resulting in signal interruption, which needs to be overcome. [1]
source
https://zh.wikipedia.org/wiki/%E9%9B%BB%E5%8A%9B%E7%B7%9A%E9%80%9A%E4%BF%A1
