中文摘要：

电力调制解调器（电力猫）在近几年受到了追捧,它可以在大空间内无需多个无线路由器,即可实现网络的联通。电力猫通过电线来传输数字信号,然后将电路里的数字信号分离出来,再将分离的信号构造网络信号。本文在介绍了电力载波通信的工作原理和可靠性的基础之上,分析了电力猫的优缺点,并对未来的应用方向进行了展望。

英文摘要：

Power modem （ power cat） were popular in network（LAN） without multiple wireless router. Power cat recent years, it can connected to the local area through wires to transmit digital signals, and then separate signals to construct network. This paper bases on introducing the working principle of electric power carrier communication and reliability, then analyze the advantages and disadvantages of power cat and the direction for the future application.