disclosed is a wireless communication apparatus having a self sensing function , which can detect an object by use of a wake - up function without employing a separate sensor . the wireless communication apparatus includes a communication unit wirelessly communicating with a server forming a wireless network , and a wake - up unit waking up the communication unit under the control of the server when the communication unit is in sleep mode , and sensing the presence of an object within a preset communication range according to a reflection signal , which is a signal reflected by the object after being transmitted from the communication unit .