| 摘要 |
PURPOSE: An LED device is provided to control the lighting device of an LED unit by connecting the LED unit with an AMI network through optical wireless communication network. CONSTITUTION: An LED unit(400) includes LEDs(417,417') and light receiving units(418,418'). An AMI(Advanced Metering Infrastructure) network is formed as a PLC(Power Line Communication) network. The AMI network inputs or outputs power source and control signal to the LED unit. A PLC(Power Line Communication) modem connects the LED unit and the AMI network through the PLC network. According to the light amount of the light receiving unit, security/environment sensing units(611~613) senses the security state, or the environment variable. |
