| 摘要 |
<p>A communication system of the present invention is connected to an alternating current power source (P) to use power line communication between an outlet (100) and a lighting fixture (200). The communication system using power line communication between an outlet and a lighting fixture is provided, the outlet (100) comprising: a first transceiving port (Tx, Rx) for transmitting data to or receiving data from a home network through a communication line; a first phase detection unit (110) for detecting the phase of an alternating current power source (P); and a first control unit (120) for controlling to transmit, to the lighting fixture (200), a first data (Dc) generated by regulating a power source supplied to the lighting fixture (200) in a first interval (T1) of phase as the phase interval of the power source which may have a minimum voltage capable of driving gate power devices (TR1, TR2, TR3) when the phase of a power source detected by the first phase detection unit (110) is an integer times (n=0, 1, 2, 3,...)π, through the first transmitting port (Tx), and to receive, from the lighting fixture (200), a second data (DI) on the operation of a lamp (L), in a second interval (T2) adjacent to the first interval (T1), through the first receiving port (Rx). [Reference numerals] (110,210) Phase detection unit; (120,220) Control unit; (230) Brightness control unit</p> |
