Abstract:
PURPOSE: A wireless power monitoring receptacle and a power control method thereof are provided to prevent malfunction of a receptacle through automatic battery charge control and power consumption control according to the residual power of battery. CONSTITUTION: An AC input unit(110) receives AC power source from a connected receptacle. A relay switch(120) switches the electrical contact between the AC input unit and an AC output unit(130) and a charge unit(140). The AC output unit outputs the AC power source applied from the AC input unit through the relay switch to a connected electronic device. The charge unit charges a battery(150) with the AC power source applied through the relay switch from the AC input unit. The battery supplies power to a wireless communication module(160) which is connected to an external control system, a control unit which measures applied power to obtain the power consumption of the electronic device, and a display unit(170).
Abstract:
PURPOSE: A sensor network system and a networking method thereof are provided to block loss of sensing data while sensing a sensor node in order to accurately sense environment data. CONSTITUTION: A collecting unit(120) broadcasts a sensing command. Sensor nodes receive the sensing command from the collecting unit. The sensor nodes perform sensing operation. The sensor nodes in a first section transmit sensing data to the collecting unit. The sensor nodes in a second section transmit sensing data to the collecting unit.