CRADLE DEVICE HAVING MULTIPLE INTERFACE

摘要

PURPOSE: A cradle device based on a multi-interface is provided to couple a smart terminal with an external device and to control an external device with a user operation of the smart terminal. CONSTITUTION: A first interface(10) offers a communication interface to an external device. A second interface(20) offers the communication interface to a smart terminal. A control interface(30) couples the external device and the smart terminal by communication with the first interface and the second interface. The control interface performs signal transmission of the interfaces, control signal supply, PLC(Power Line Communication) device control, and PLC device operation state display control.