Along with constant development of the artificial intelligent technology, the requirements for remote control are more and more, and communication of control signals becomes the important part of theartificial intelligent technology. Adopting power line carrier communication is the most economical method without doubt. The principle and method completely different from traditional power line carrier communication are applied, the technology breakthrough of power line carrier communication on a 380V/220V low-voltage grid is obtained, and transmission of communication signals in the high noiseenvironment is achieved. The invention aims to disclosure of the remote intelligent air-conditioner technology in the carrier technology. An air-conditioner is connected into the network in a bridgingmanner through the Internet of Things on a power line, and then connected with a computer or a mobile phone at the other end of the network through a network server, and the computer or the mobile phone controls the air-conditioner remotely.