Home appliance and control method thereof

1. A home appliance comprising:

a first module to communicate with a communication module of a terminal;

a second module to communicate with a router; and

a control unit to control a communication connection between the second module and the router by using information stored in the first module,

wherein the first module comprises:

a module recognition unit to recognize whether the communication module of the terminal is within a preset distance; and

a memory unit to store network configuration information to be used by the control unit when the second module accesses the router,

wherein if the module recognition unit recognizes that the communication module of the terminal is within a preset distance, the terminal writes the network configuration information to the first module irrespective of whether the home appliance is turned on or off, the first module being driven by stand by power by the home appliance,

wherein if the home appliance is turned on and the network configuration information is written to the first module by the terminal, the control unit reads the network configuration information from the first module and transmits the network configuration information to the second module, and

wherein if the home appliance is turned off and the network configuration information is written to the first module by the terminal, the control unit is in a standby state until the home appliance is turned on, thereafter if the home appliance is turned on, the control unit reads the network configuration information from the first module and transmits to the second module.

2. The home appliance of claim 1 , wherein the first module includes a near field communication (NFC) module.

3. The home appliance of claim 2 , wherein the control unit controls the first module so that the terminal reads unique information on the home appliance or information on communication or write the network configuration information to the first module.

4. The home appliance of claim 2 , wherein the control unit reads the network configuration information from the first module.

5. The home appliance of claim 1 , wherein the second module includes a WiFi modem and the control unit transmits the network configuration information to the second module.

6. The home appliance of claim 5 , further comprising a display unit, wherein the control unit displays on the display unit information on a connection result between the second module and the router.

7. The home appliance of claim 1 , wherein a communication mechanism between the first module and the control unit is an inter integrated circuit (I2C) and a communication mechanism between the second module and the control unit is a universal asynchronous receiver transmitter (UART).

8. The home appliance of claim 1 , wherein the network configuration information includes an identification (ID) and password of the router.

9. The home appliance of claim 8 , wherein the terminal is accessible through a first router and the control unit communicates with the second module, to access information through the first router.

10. The home appliance of claim 8 , wherein the terminal is accessible through a first router, and the control unit communicates with the second module, to access information through a second router.

11. The home appliance of claim 1 , wherein the network configuration information includes information of a communication security mechanism, and

one of wired equivalent privacy (WEP), WiFi protected access (WPA), WPA2 and OPEN in the communication security mechanisms is displayed on a display unit of the terminal to be able to be selected.

12. The home appliance of claim 1 , wherein a data transmission and reception mode for a connection between the second module and a router is displayed on a display unit of the terminal to be able to be selected if an application stored in the terminal is executed.

13. The home appliance of claim 1 , wherein the memory unit comprises:

a first area to store unique information, communication information or installation information on the home appliance;

a second memory area to store error information on the home appliance, information on an error diagnosis result or information on consumption power of the home appliance; and

a third memory area to store information on configuring communication for a router of the home appliance.

14. A method of controlling a home appliance, the method comprising:

executing an application of a home appliance and executing a network configuration mode of near field communication (NFC);

tagging a terminal to the home appliance for data transmission or reception;

writing, by the terminal, network configuration information to a first module of the home appliance if the tagging is performed, and reading, by a control unit of the home appliance, the network configuration information from the first module; and

transmitting, by the control unit of the home appliance, the network configuration information read from the first module, to a router,

wherein the outputting of the guide information comprises:

outputting the guide information after the first preset time passes, if an error occurs due to failure of the tagging; and

outputting the guide information after a second preset time shorter than the first preset time passes, if an error occurs during the data transmission or reception.

15. The method of claim 14 , wherein the transmitting of the network configuration information to the router comprises:

transmitting the network configuration information to a second module of the home appliance; and

communicably connecting the second module of the home appliance to the router based on the network configuration information.

16. The method of claim 14 , further comprising outputting guide information by the home appliance or the terminal on a location of the tagging after a preset time passes, if an error in the data transmission or reception occurs.