rf signal can be re transmitted thereby repeating the rf signal fig5 is a schematic block diagram illustrating a home network server applied to the system of fig1 according to an exemplary embodiment of the present invention the home network server 500 emits a previously set control command which corresponds to an rf signal received from the universal remote controller 200 to the control node 300 to control a variety of control targets to this end the home network server 500 includes an rf communication unit 510 a comparing unit 520 a command extracting unit 530 and a command storing unit 540 the rf communication unit 510 serves to perform transmission reception of rf signals that is the rf communication unit 510 converts a received rf signal into a digital signal or converts a digital signal to an rf signal to emit it the comparing unit 520 compares information received from the sensor node 400 with user 39 s setting information for example if a user sets an indoor temperature to 27 u00b0 c the comparing unit 520 compares 27 u00b0 c with the current indoor temperature from the sensor node 400 for example 20 u00b0 c and determines that the current indoor temperature is lower than the set temperature when the command extracting unit 530 receives a command from a user the universal remote controller through the rf communication unit 510 or is in a situation where it must control targets according to settings because information received from the sensor node is not identical to the setting information it extracts the command of a user or a control command previously set based on information comparison from the command storing.