| 摘要 |
<p>The present invention relates to a Power over Ethernet (PoE) LED lighting control system, comprising: a PoE port for receiving power and data; a PoE transformer for separating power and data from the PoE port; a power device for outputting with constant voltage, power separated from the PoE transformer; a constant current module for outputting with constant current, power outputted from the power device to an LED; a CPU for receiving power separated from the PoE transformer; a control unit for providing a control signal to control the operation of the LED; and a LED driving driver for supplying a control signal outputted from the CPU to the LED for controlling the LED. The present invention enables the efficient control of LED lighting under PoE system; minimizes limitations on installation places because only communications lines are necessary to install rather than along with conventional power lines; significantly facilitates installation and management because communications can be used to transmit/receives both electricity and data; significantly reduces installation costs; and, through transmitting/receiving both electricity and data, provides further means to facilitate the control of not only LED but also various devices, such as sensors, switches and exit doors.</p> |
