Robot cleaner, robot cleaner system and control method of the same

A robot cleaner comprising:

• a case including an upper cover serving as an upper exterior appearance of the robot cleaner;
• a suction device provided in the case;
• a dust collection device configured to collect foreign substances contained in the air sucked via the suction device;
• a wheel unit provided to allow movement of the robot cleaner;
• a main controller configured to control the suction device and the wheel unit;
• a Wi-Fi module including a wireless LAN card configured to provide an Access Point (AP) and the wireless LAN card connect to a board mounted at a rear surface of the upper cover;
• and
• a NFC module coupled at the rear surface of the upper cover in an opposite position of the Wi-Fi module, the NFC module for providing AP information for accessing to the AP via NFC communication for an external terminal,
• wherein when the AP information received from the external terminal is authenticated, Wi-Fi communication with an external terminal is enabled.

A control method of a robot cleaner comprising:

• transmitting AP information of a Wi-Fi module embedded in a case of the robot cleaner to an external terminal via a NFC module;
• allowing the external terminal to access to the AP based on the AP information received from the external terminal;
• and
• Wi-Fi between the external terminal and the robot cleaner via the AP.

A control method of a robot cleaner system comprising a robot cleaner and an external terminal for wirelessly communicating with the robot cleaner, the control method comprising:

• receiving information of the robot cleaner by the external terminal via communication between an NFC module and the external terminal via an NFC module of the robot cleaner, where information of the robot cleaner includes AP information of a Wi-Fi module provided in a case of the robot cleaner;
• selecting a robot cleaner as a remote control object through the external terminal based on the received information on the robot cleaner;
• accessing the AP by allowing the external terminal to transmit the AP information to the selected robot cleaner;
• and
• performing Wi-Fi communication between a Wi-Fi module of the robot cleaner and a Wi-Fi module of the external terminal.