Remote control method and remote control system using mobile terminal

1. A remote control system comprising:

an at least one source terminal capturing a monitoring image of a particular area;

an image processing device assigning a channel number for identifying the monitoring image to each of at least one monitoring image transmitted by the at least one source terminal, and receiving at least one of the at least one monitoring image and displaying a received image on a display; and

a mobile terminal receiving screen state information transmitted by the image processing device, and the mobile terminal generating a menu screen based on the received screen state information, and the mobile terminal receiving an input from a user through the menu screen and controlling the display of the image processing device according to a function of the menu screen received through the menu screen and selected by the user,

wherein the menu screen of the mobile terminal is generated based on the screen state information, and the screen state information includes at least one of a screen state of the image processing device, content information output to the display of the image processing device, real-time output state information of a content output to the display of the image processing device, screen split mode information of the image processing device, pan-tilt-zoom (PTZ) support information of the source terminal, audio output state information of the image processing device, time information, and recording state information; and

wherein the mobile terminal receives an input signal through a PTZ control menu; and transmits, to the image processing device, a signal for a PTZ control action of the source terminal based on the input signal so that at least one of panning action, tilting action and zooming action is to be applied to the source terminal according to the signal.

2. The remote control system of claim 1 , wherein the menu screen of the mobile terminal is generated on the display of the mobile terminal in a form of an on-screen display (OSD) or a graphic user interface (GUI).

3. The remote control system of claim 1 , wherein the image processing device and the mobile terminal are paired with each other by a Wi-Fi direct communication or a Bluetooth communication.

4. The remote control system of claim 1 , wherein, when there is a split screen asking an input of a password among split screens of the image processing device, the password is input through the mobile terminal.

5. A method of remotely controlling an image processing device, the method comprising:

searching for and pairing with a mobile terminal, which is performed by an image processing device;

receiving screen state information of the image processing device, which is performed by the paired mobile terminal, wherein the screen state information includes pan-tilt-zoom support information that includes information on whether pan, tilt, and zoom are possible and information about an area in a display where PTZ is performed;

generating a menu screen on the basis of the received screen state information, which is performed by the paired mobile terminal; and

receiving an input from a user through the menu screen and controlling a display of the image processing device according to a function of the menu screen selected by the user, which is performed by the paired mobile terminal.

6. The method of claim 5 , wherein the image processing device receives an input of a content from at least one of source terminals and displays the content on a display supported by the image processing device or a display communicated with the image processing device by wires or wirelessly, and

when the content is plural, at least one of the contents is selected and displayed on the display.

7. The method of claim 6 , wherein the screen state information comprises at least one of content information output to the display, real-time output state information of a content output to the display, screen split mode information, pan-tilt-zoom (PTZ) support information of the source terminal, and audio output state information of the image processing device.

8. The method of claim 6 , wherein the screen state information comprises at least one of replay image information output to the display, real-time output state information of a content output to the display, information about a channel of the source terminal transmitted an image output on the display, screen split mode information, and pan-tilt-zoom (PTZ) support information of the source terminal.

9. The method of claim 6 , wherein the menu screen is generated in a form of an on-screen display (OSD) or a graphic user interface (GUI) on the display of the paired mobile terminal.

10. The method of claim 5 , wherein the paired mobile terminal receives an input from a user through the menu screen and controls the display of the image processing device according to a function of the menu screen selected by the user, and

the menu screen supports at least one of a pan-tilt-zoom (PTZ) control mode, a screen split mode, an audio output mode, a content output position change mode, and a user input mode.

11. The method of claim 10 , wherein, when the user selects the user input mode through the menu screen, an input that is input through the paired mobile terminal is input to the image processing device and the input includes at least one of text, voice, and an image.

12. The method of claim 10 , wherein, when the user selects the PTZ control mode through the menu screen, the paired mobile terminal perform a PTZ control on part of or whole of a screen of the image processing device display.

13. The method of claim 5 , wherein the image processing device performs searching for and paring with an adjacent mobile terminal on the mobile terminal by using a Wi-Fi communication or Bluetooth communication.

14. A mobile terminal comprising:

a receiver receiving screen state information transmitted by an image processing device;

a menu screen generator generating a menu screen based on the screen state information;

an input portion receiving an input from a user through the menu screen; and

a remote controller controlling a display of the image processing device according to a function of the menu screen received through the menu screen and selected by a user,

wherein the menu screen generator generates the menu screen based on the screen state information including at least one of screen state information of the image processing device, content information output to the display of the image processing device, real-time output state information of a content output to the display of the image processing device, screen split mode information of the image processing device, pan-tilt-zoom (PTZ) support information of a source terminal, audio output state information of the image processing device, time information, and recording state information.

15. The mobile terminal of claim 14 , wherein the mobile terminal is paired with the image processing device by a Wi-Fi direct communication or a Bluetooth communication.

16. The mobile terminal of claim 14 , wherein the image processing device receives at least one content from at least one source terminal capturing a monitoring image of a particular area, assigns a channel number for identifying the monitoring image to each of at least one monitoring image transmitted by the at least one source terminal, and receives a received image on a at least one of the at display of the image least one monitoring image and displaying processing device.