Video recorder and surveillance system including the same

1. A surveillance system comprising a plurality of video recorders and a plurality of cameras connected to a communication network,

wherein the video recorders are configured to communicate with one another and share camera registration information with one another,

wherein the camera registration information comprises information about at least one camera, among the plurality of cameras, which is registered at a corresponding video recorder among the plurality of video recorders, and

wherein, if it is determined that one of the video recorders has an error, at least one proxy video recorder among the other video recorders which does not have the error, in place of the video recorder having the error, is configured to perform proxy recording of data captured by at least one camera registered at the video recorder having the error.

2. The surveillance system of claim 1 , wherein the video recorder having the error is configured to provide camera information for the proxy recording of the data to the at least one proxy video recorder according to a preset proxy recording guideline, and

wherein the camera information for the proxy recording comprises information about the at least one camera registered at the video recorder having the error.

3. The surveillance system of claim 1 , wherein the video recorder having the error is configured to select the at least one proxy video recorder, among the plurality of other video recorders, and the at least one camera based on at least one of recording loads of the other video recorders and an order of priority of the plurality of cameras, and provide information about the at least one camera to the at least one proxy video recorder.

4. The surveillance system of claim 1 , wherein at least one of the plurality of video recorders is configured to transmit a request for state information to the other video recorders and perform proxy recording of data captured by a camera registered at a video recorder not responding to the request in place of the video recorder not responding to the request.

5. The surveillance system of claim 4 , wherein if the at least one of the plurality of video recorders receives the state information from the non-responding video recorder, the at least one video recorder is configured to transmit information about the camera subjected to the proxy recording and recording time information to the non-responding video recorder.

6. The surveillance system of claim 1 , wherein at least one of the plurality of video recorders is configured to search the communication network to detect the other video recorders and acquire camera registration information from at least one of the detected video recorders.

7. The surveillance system of claim 1 , wherein at least one video recorder among the plurality of video recorders is configured to register at least one camera among the plurality of cameras which is not registered at the other video recorders, and record data captured by the camera registered at the video recorder, and

wherein, if error occurrence at the video recorder is detected, the video recorder is configured to transmit a proxy recording request for recording the data captured by the camera registered at the video recorder to at least one of the other video recorders, and if the error occurrence at another video recorder among the other video recorders is detected, the video recorder is configured to perform proxy recording of data captured by a camera registered at the other video recorder having the error.

8. The surveillance system of claim 7 , wherein, in order to register the camera not registered in the other video recorders, the video recorder is configured to search the communication network to detect another video recorder among the plurality of video recorders and acquire address information of the detected video recorder.

9. The surveillance system of claim 8 , wherein the video recorder is configured to transmit a request for camera registration information to the detected video recorder and receive the camera registration information from the detected video recorder.

10. The surveillance system of claim 9 , wherein the request for camera registration information comprises authentication key information used to authenticate the video recorder transmitting the request for camera registration information.

11. The surveillance system of claim 7 , wherein, in order to register the camera not registered in the other video recorders, the video recorder is configured to transmit a request for camera registration state information at the other video recorders to the other video recorders and receive the camera registration state information from the other video recorders.

12. The surveillance system of claim 7 , wherein, if the error occurrence at the video recorder is detected, the video recorder is configured to request the at least one of the other video recorders or a user to send, to the video recorder, information about a proxy video recorder which is controlled to record the data, captured by the camera registered at the video recorder, in place of the video recorder and receive the information about the proxy video recorder, and is configured to send, to the proxy recorder, information about a proxy camera which is registered at the video recorder and controlled to transmit data captured by the proxy camera to the proxy video recorder.

13. The surveillance system of claim 7 , wherein the video recorder is configured to request the at least one of the other video recorders to set a proxy video recorder, among the plurality of video recorders, which is to record data captured by at least one camera registered at the at least one of the other video recorders instead of the at least one of the other video recorders, and receive a result of the proxy video recorder setting from the at least one of the other video recorders.

14. The surveillance system of claim 13 , wherein, the video recorder is further configured to request the at least one of the other video recorders to set a proxy camera which is registered at another video recorder among the plurality of video recorders and is to transmit data captured by the proxy camera to the at least one of the other video recorders instead of the other video recorder, and receive a result of the proxy camera setting from the at least one of the other video recorders.

15. A video recorder comprising:

a search module configured to search a communication network for a plurality of cameras and a plurality of other video recorders connected to the communication network;

a camera registration module configured to acquire camera registration information from the other video recorders and register at least one of the cameras which is not registered in the other video recorders; and

a proxy setting module configured to request at least one of the other video recorders to record data captured by a camera registered at the video recorder instead of recording by the video recorder if error occurrence at the video recorder is detected, and control recording of data, captured by a camera registered at another video recorder among the other video recorders, at the video recorder instead of recording at the other video recorder if the error occurrence at the other video recorder is detected,

wherein the camera registration information comprises information about at least one camera, among the plurality of cameras, which is registered at a corresponding video recorder among the other video recorders.

16. The video recorder of claim 15 , wherein, if the error occurrence at the video recorder is detected, the proxy setting module is configured to provide camera information about the camera registered at the video recorder to a proxy video recorder among the other video recorder which is controlled to record the data, captured by the camera registered at the video recorder, instead of the video recorder, and

wherein the proxy recorder is set according to a preset proxy recording guideline.

17. The video recorder of claim 15 , wherein if the error occurrence at the video recorder is detected, the proxy setting module is configured to select at least one proxy video recorder and at least one camera which is controlled to transmit data captured by the at least one camera to the at least one proxy video recorder for recording thereat instead of recording at the video recorder based on at least one of recording loads of the other video recorders and an order of priority of the plurality of cameras, and provide information about the at least one camera to the at least one proxy video recorder.

18. The video recorder of claim 15 , wherein the proxy setting module is configured to transmit a request for state information about the other video recorders to the other video recorders and control recording of data, captured by a camera which is registered at a video recorder not responding to the request, at the video recorder instead of recording at the non-responding video recorder.

19. The video recorder of claim 15 , wherein the camera registration module is configured to transmit a request for the camera registration information to the other video recorders and receive the camera registration information from the other video recorders.

20. The video recorder of claim 19 , wherein the request for camera registration information comprises authentication key information used to authenticate the video recorder for the receiving the camera registration information.