Abstract: A robot system including a beacon provided with a transmitting part to transmit a light for location determination, and a mobile robot provided with a receiving part to receive the light. The robot system further includes a rotation driving part to rotate the transmitting part about a predetermined axis; an encoder to add phase information regarding how much the transmitting part is rotated by the rotation driving part with respect to a reference direction to the light; and a location determiner to determine a location of the mobile robot based on the phase information of the light received by the receiving part. Accordingly, a robot system is provided, which can precisely determine a location of a mobile robot regardless of external environmental conditions, distance, and reduction of cost by using a few transmitters.

Abstract: A mobile sensor being movable which includes a wireless transmitting/receiving part to wirelessly transmit/receive information, an indoor environmental sensor to sense the indoor environment, and a controller to transmit the information on the indoor environment sensed by the indoor environmental sensor through the wireless transmitting/receiving part, and a control server receiving the information transmitted from the mobile sensor so as to control an indoor environmental control device on the basis of the received information. Therefore, the present invention provides a mobile sensor, which can optimize indoor environments through a home network.

Abstract: A robot system including a beacon provided with a transmitting part to transmit a light for location determination, and a mobile robot provided with a receiving part to receive the light. The robot system further includes a rotation driving part to rotate the transmitting part about a predetermined axis; an encoder to add phase information regarding how much the transmitting part is rotated by the rotation driving part with respect to a reference direction to the light; and a location determiner to determine a location of the mobile robot based on the phase information of the light received by the receiving part. Accordingly, a robot system is provided, which can precisely determine a location of a mobile robot regardless of external environmental conditions, distance, and reduction of cost by using a few transmitters.

Abstract: A robot system includes a mobile robot with a driving part to move. The robot system includes a light commander to emit light and give a command corresponding to a reflecting position at which the light is reflected. The robot system also includes a position detector to receive information on the reflecting position as an image, and to detect the reflecting position, and a controller to determine a reflecting trace based on the reflecting position detected by the position detector, and to output the reflecting trace to the driving part to control the driving part. Thus, the robot system and a control method thereof, has reduced costs, and is easy and safely operated, and immediate operation teaching is possible without a compensating process.

Abstract: An indoor environmental control system having an indoor environmental control device to control at least one indoor environment, including a mobile sensor being movable, and a wireless transmitting/receiving part to wirelessly transmit/receive information, an indoor environmental sensor to sense the indoor environment, and a controller to transmit the information on the indoor environment sensed by the indoor environmental sensor through the wireless transmitting/receiving part; and a control server receiving the information transmitted from the mobile sensor so as to control the indoor environmental control device on the basis of the received information. Therefore, the present invention provides an indoor environment control system and a method of controlling the same, which can optimize indoor environments through a home network.

Abstract: A charging system to charge a battery of a robot includes a charger and a first charging part provided in the charger and including a high-frequency current generator to rectify commercial power and to convert the rectified power into a high-frequency square wave signal, a primary induction coil to generate an electromagnetic field by the high-frequency square wave signal supplied from the high-frequency current generator, and a first terminal part to emit the electromagnetic field created by the primary induction coil. The charging system also includes a second charging part provided in a robot and including a second terminal part to mate with the first terminal part, a secondary induction coil to generate an induced current by the electromagnetic field emitted from the first charging part, and a DC converter to rectify the induced current generated from the secondary induction coil and to supply DC power to the battery.