KR20080014191A - Method and system for monitoring using watch camera - Google Patents

Abstract

A monitoring system using a watch camera and a method thereof are provided to perform monitoring regardless of a place by a portable terminal without a separate additional device. Cameras(100) have microphones and offer video and audio data according to the video and audio of installed areas. IP(Internet Protocol) terminals(800) are used for monitoring video and audio of the areas, transmit a data request message including the telephone number information of the cameras according to supervisor's selection to a network and receives and outputs the video and audio data from the cameras through the network. An IP exchanger(700) transmits the data request message received from each IP terminal to the corresponding camera and connects the IP terminal with the camera through the network so that the IP terminal receives the audio and video data from the cameras through the network.

Description

Surveillance system using surveillance camera and its method {method and system for monitoring using watch camera}

1 is a block diagram illustrating a monitoring system according to a preferred embodiment of the present invention.

2 is a block diagram illustrating a DVR system according to a preferred embodiment of the present invention.

3 is a block diagram illustrating an IP switch in accordance with the present invention.

4 is a diagram illustrating information stored in a database according to the present invention according to the present invention.

5 is a block diagram illustrating an IP terminal according to the present invention;

6 is a flow chart for explaining the flow of the monitoring method of the monitoring system according to a preferred embodiment of the present invention.

7 is a flow chart for explaining the flow of the monitoring method of the monitoring system according to a preferred embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: network camera 200: DVR system

210: digital camera 220: DVR server

230: playback means 240: gateway (G / W)

300: monitoring server 400: display means

500: computer terminal 600: wireless terminal

700: IP switch 710: network interface unit

720: database 730: call processing unit

740: camera call processing unit 800: IP terminal

810: interface unit 820: display unit

830: voice output unit 840: keypad unit

850: Storage unit 860: Central control unit

870: message processing unit 880: data processing unit

The present invention relates to a surveillance system and method using the surveillance camera.

Conventional surveillance systems generally use CCTV (Closed Circuit TV). Such a surveillance system using CCTV is basically a system for outputting an image captured by a surveillance camera through a coaxial cable through a display means (for example, a monitor), and thus, cannot be called a system for remote monitoring.

In addition, since the surveillance system stores the captured image on a recording medium such as a magnetic tape, not only does it take a long time to search for the image, but also requires a resident person to watch the display means. The problem is that system management is very difficult.

As an alternative to the surveillance system using CCTV, a DVR (Digital Vedio Recording) system has been proposed.

The DVR system converts the captured image data into digital data and stores the image data on a hard disk. Thus, there is no change in image quality of the captured image during recording and playback, and it is easy to manage the storage medium.

The DVR system is composed of a plurality of camera means, a DVR means and a display means, and image data photographed by each camera means is transmitted to the DVR means.

The DVR means outputs the image data through the display means, or transmits the image data to a client terminal connected remotely through a network.

The DVR means stores the video data in the storage means.

However, a surveillance system using a DVR system requires resident personnel (eg, security guards) who constantly watch the display means in order to monitor the image data captured by the camera in real time.

For example, the resident personnel monitoring the display means of the DVR system will work only a small number, especially at night, but should monitor the display means at all times due to the high number of malicious intrusions at night. Due to the urgent situation, there is a time when the display means cannot be watched, but installing the display means in all areas where resident personnel are likely to move is a waste of price and space.

Therefore, the present invention was devised to solve the above problems, and when the resident personnel of the monitoring system does not observe the display means, the surveillance that can monitor the image taken by the camera using the mobile terminal in possession It is an object of the present invention to provide a surveillance system and method using a camera.

Surveillance system using a camera according to an aspect of the present invention for achieving the above object, a plurality of cameras having a microphone, and provides the image data or audio data according to the image and sound of the installed area, and the image of the area and A plurality of IP terminals, which are carried by a supervisor who monitors audio and transmit a data request message including the phone number information of the camera to the network, and receive and output image data or audio data from the camera through the network. And transmitting a data request message received from each IP terminal to the camera, and if the camera is capable of data transmission, connects the camera and the IP terminal through a network so that the IP terminal can receive image data or audio data from the camera. It includes an IP switch that enables it.

The IP switch according to the present invention corresponds to a database storing telephone number information, support information or option information corresponding to IP address information of each camera, and telephone number information included in a data request message received from each IP terminal. And a camera call processing unit for retrieving IP address information from a database, transmitting a data request message to a corresponding camera, and transmitting a support message of the corresponding camera to an IP terminal when a response message is received from the camera.

The assistance information according to the present invention includes at least one or more information among video codec information for processing image data by the camera, voice codec information for processing audio data, and IP protocol information used by the camera.

Option information according to the present invention, when a call request message is received from the camera when the IP terminal receives the video data or audio data from the camera, the pause or cancel the transmission of the video data or audio data received from the camera or Information to set any one of the connection termination.

When the call request message is received from the IP terminal in the state connected through the network between the IP terminal and the camera, the camera call processing unit processes the call request message according to the option information.

Surveillance system using a camera according to the present invention is a DVR system having a video signal or audio signal, a plurality of digital cameras, a DVR server and a gateway for transmitting the video signal or audio signal to the network, and from each camera or DVR system It further comprises a monitoring server for outputting through the display means while storing the received image data or audio data.

The IP terminal according to the present invention includes a message processing unit for generating a data request message in which the telephone number information input by the monitor is set as the called telephone number, and the supporting information received from the IP exchanger, and the image data received from the camera or And a data processor for processing and outputting voice data based on the support information.

The IP terminal according to the present invention transmits the password information input by the monitor to the IP exchange when the camera is in a data transmission possible state.

The IP exchanger according to the present invention requests data transmission to the camera when the password information received from the IP terminal matches the preset password information.

According to another aspect of the present invention, a monitoring method using a camera may include using an IP terminal when a monitor leaves a location where display means for outputting video or audio corresponding to video data or audio data received from a plurality of cameras is installed. Transmitting a data request message to the IP exchange, transmitting the data request message to the camera, and checking the data transmission status of the camera, and sending a response message to the IP exchange if the data transmission is possible. And, when the IP exchanger receives the response message from the camera, transmitting the support information of the corresponding camera to the IP terminal, requesting data transmission to the camera, and when the camera is requested to transmit the data, the video data or audio data is transmitted. Transmitting to the corresponding IP terminal; Processing the data based on the supporting information and outputting the data.

The transmitting of the data request message according to the present invention to the corresponding camera may include: storing, by the IP exchange, telephone number information, support information, or option information corresponding to the IP address information of each camera, and requesting data received from the IP terminal. And searching for a camera corresponding to the phone number information included in the message and transmitting a data request message to the corresponding camera.

Option information according to the present invention, when a call request message is received from the camera when the IP terminal receives the video data or audio data from the camera, the pause or cancel the transmission of the video data or audio data received from the camera or Information to set any one of the connection termination.

The monitoring method using a camera according to the present invention further includes the step of, when the IP exchange receives a call request message while the IP terminal receives image data or audio data from the camera, processing the call request message according to the option information. do.

The requesting data transmission to the camera according to the present invention may include: transmitting, by the IP terminal, password information input by the monitor to the IP exchanger if the camera is capable of data transmission; and password information received from the IP terminal by the IP exchanger. If is matched with the preset password information, requesting data transmission to the camera.

Hereinafter, a surveillance system using a surveillance camera and a method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram illustrating a monitoring system according to a preferred embodiment of the present invention.

Referring to Figure 1, the surveillance system according to the present invention is a plurality of network cameras 100, DVR system 200, monitoring server 300, IP switch 700, a plurality of IP terminals 800, a wireless terminal ( 600, a computer terminal 500.

The computer terminal 500, the monitoring server 300, the plurality of network cameras 100, and the DVR system 200 are connected through a network.

The network may be a network according to any one of LAN, WAN, PSTN, ISDN, cable modem, or xDSL.

In addition, the wireless terminal 600 may be connected to a network through a wireless network.

In the following detailed description of the present invention, the terminal carried by the resident personnel is described as an IP terminal 800 as an example, but the same applies to other portable terminals.

Each network camera 100 is allocated IP address information for connecting to a network, and has an interface and a microphone for connecting to a network, and provides real-time image data and recorded audio data of an image of an installed region. .

The DVR system 200 provides image data of an area where the digital camera 210 is installed.

2 is a block diagram illustrating a DVR system according to a preferred embodiment of the present invention.

Referring to FIG. 2, the DVR system 200 according to the present invention includes a plurality of digital cameras 210, an EVR server, a playback means 230, and a gateway (G / W) 240.

Each digital camera 210 is provided with a small microphone, and transmits the video signal and the recorded audio signal of the image of the installed area to the DVR server 220 in real time.

The DVR server 220 stores the video signal and the audio signal received from each digital camera 210 or outputs the same through the playback means 230.

In addition, the DVR server 220 transmits the received video signal and the audio signal to the network through the gateway 240. That is, the DVR server 220 transmits an image signal received from the digital camera 210 to the monitoring server 300, and the gateway 240 may transmit image data received from the DVR server 220 to a network. Convert to video data.

That is, the DVR server 220 transmits the video and audio captured by the digital camera 210 to the monitoring server 300.

The monitoring server 300 outputs the video and audio corresponding to the video data and the audio data received from each network camera 100 and the DVR server 220 through the display means 400.

The monitoring server 300 outputs the image data and the audio data through the display means 400, and divides the image and audio data into historical information such as time and region of the image and audio, and stores them in a storage means such as a hard disk (not shown). (Hereinafter referred to as "monitor") allows past images to be retrieved.

The display means 400 refers to an electronic device capable of outputting video and audio such as a monitor and a TV, and allows a monitor to monitor a building or an area in which a surveillance system is built.

The computer terminal 500 and the wireless terminal 600 allow the monitor to remotely monitor and acquire image data and audio data through a network.

The IP exchanger 700 is connected to a plurality of IP terminals 800, and establishes a call call between the IP terminals 800 or between the IP terminals 800 and the external network, or the IP terminal 800 and the network camera ( 100) or establish a call with the DVR system 200.

Hereinafter, the IP exchanger 700 establishes a call between the network camera 100 and the IP terminal 800 so that the IP terminal 800 outputs video data and audio data received from the network camera 100. However, the same applies to the case where the call call is set up between the other DVR system 200 and the IP terminal 800 or the call call is set up between the other terminal and the network camera 100.

In addition, in the following detailed description of the present invention will be described a case of setting up a call call between the network camera 100 and the IP terminal 800, the same applies to the case of setting other data channels.

3 is a block diagram illustrating an IP switch according to the present invention.

Referring to FIG. 3, the IP exchanger 700 includes a network interface unit 710, a data base 720, and a call processor 730, and the call processor 730 includes a camera call processor 740. .

The network interface unit 710 receives a data request message or a response message through a network.

The call processing unit 730 calls between the IP terminals 800 or between the IP terminals 800 and the external network terminal and the IP terminals 800 and the network camera 100 according to the message received through the network interface unit 710. Set up the call.

That is, the camera call processor 740 sets a call call between the IP terminal 800 and the network camera 100 when the called number of the data request message received from the IP terminal 800 is the telephone number of the network camera 100. do.

Then, the camera call processor 740 transmits a data request message received from the IP terminal 800 to the network camera 100, and when a response message is received from the network camera 100, the corresponding network to the IP terminal 800. The support information of the camera 100 is transmitted.

The supporting information of the network camera 100 may include general information necessary for the IP terminal 800 to process the image data and the audio data, such as codec information or IP protocol information obtained by compressing the image data and the audio data. do.

The database 720 stores IP address and phone number information of each network camera 100 and support information of each network camera 100.

4 is a diagram illustrating information stored in a database according to the present invention according to the present invention.

As shown in FIG. 4, the database 720 of the IP exchanger 700 stores IP address information, phone number information, and support information for each network camera 100.

When a data request message is received from the IP terminal 800, the camera call processing unit 740 checks incoming call information and checks IP address information of the network camera 100 corresponding to the incoming call number.

The camera call processor 740 establishes a call after transmitting a data request message using the IP address information of the network camera 100.

When a response message is received from the network camera 100, the camera call processor 740 transmits support information of the corresponding network camera 100 to the IP terminal 800.

In addition, the database 720 stores password information and option information for authenticating a supervisor who transmits a data request message through each IP terminal 800.

If the option information is received from the IP terminal 800 with the call request between the IP terminal 800 and the network camera 100 is set, the pause of the video data or audio data received from the network camera 100, You can set options that can be set by the watcher, such as canceling a transmission or ending a call.

When the password information received from the IP terminal 800 matches the password information set in the database 720 in a state in which a response message is received from the network camera 100, the camera call processing unit 740 sends a message from the network camera 100. The video data and the audio data are transmitted to the IP terminal 800.

In addition, the camera call processing unit 740 is an IP terminal in a state in which a call is established between the network camera 100 and the IP terminal 800 and the IP terminal 800 is receiving image data or audio data from the network camera 100. When the data request message is received at 800, the call is processed according to the option information set in the database 720.

The IP terminal 800 is a terminal carried by the supervisor and transmits a data request message to the IP switch 700 according to the supervisor's selection.

The data request message transmitted by the IP terminal 800 includes the telephone number of the network camera 100 selected by the monitor.

5 is a block diagram illustrating an IP terminal according to the present invention.

Referring to FIG. 5, the IP terminal 800 according to the present invention includes an interface unit 810, a keypad unit 840, a display unit 820, and a storage unit for connecting the IP terminal 800 to a network. 850, a voice output unit 830, and a central controller 860, and the central controller 860 includes a message processor 870 and a data processor 880.

The keypad unit 840 may include a 3 * 4 array of keys and a plurality of function keys. The keypad unit 840 may provide a key signal according to a key selected by the monitor to the central controller 860.

The key signal provided by the keypad unit 840 to the central control unit 860 includes a phone number of the network camera 100, which is an incoming phone number, a call request, a call termination, a transfer, a function selection (video, audio, or video and audio), and the like. It can have the same information.

The display unit 820 displays image information under the control of the central controller 860 and displays an image according to the image data received from the network camera 100.

The voice output unit 830 outputs voice information under the control of the central controller 860, and outputs voice according to voice data received from the network camera 100.

The central control unit 860 transmits a data request message according to the telephone number selected by the monitor through the keypad unit 840 to the IP exchanger 700, and the network camera 100 through a call call set up by the IP exchanger 700. The video data or the audio data received from the N / W is stored in the storage unit 850 and output through the display unit 820 or the audio output unit 830.

The message processing unit 870 generates a data request message that sets the telephone number selected by the supervisor as the called phone number, transmits the data request message to the IP exchanger 700, and when a response message for the data request message is received, the network camera through the network. Set a call call with 100.

At this time, the message processing unit 870 stores the support information of the network camera 100 to which the call call received from the IP exchanger 700 is set in the storage unit 850.

The data processor 880 processes the image data and the audio data received from the network camera 100 through the set call, and displays the image information through the display 820, and outputs the voice information to the voice output unit 830. Output through

In this case, the data processor 880 may process the received image data and the audio data according to the support information received from the IP exchanger 700.

In addition, when the monitor selects a function through the keypad 840, the central controller 860 receives from the network camera 100 when the monitor selects a video mode from among the video mode, the audio mode, or the video / audio mode. If only the video data to be processed is selected and the audio mode is selected, only the audio data is processed.

The central controller 860 includes the function mode information selected by the monitor in the data request message so that the network camera 100 can transmit the image data or the audio data according to the corresponding function.

When the monitor selects the end of the call, the central control unit 860 ends the call and ends the reception of the video data or the audio data from the network camera 100.

In addition, when the monitor selects forwarding, the central control unit 860 transfers the video data or audio data received from the network camera 100 through the call to another IP terminal 800 selected by the monitor.

6 is a flow chart for explaining the flow of the monitoring method of the monitoring system according to a preferred embodiment of the present invention.

Referring to FIG. 6, when the monitor deviates from the location where the display means 400 is installed, the monitor inputs a telephone number of the network camera 100 to the IP terminal 800 that is carried, and sends a data request message to the IP switch 700. Transfer to (S 100).

When the IP switch 700 receives the data request message from the IP terminal 800, the IP switch 700 checks the IP address of the network camera 100 corresponding to the called phone number and transmits the data request message to the corresponding network camera 100 ( S 110).

When a data request message is received, the network camera 100 checks whether a call call is currently established with another IP terminal 800 or whether data cannot be transmitted or data can be transmitted due to other circumstances (S 120).

When the network camera 100 cannot transmit data, the network camera 100 transmits a non-response message (N-ACK) to the IP exchanger 700, and when the IP exchanger 700 receives a non-response message, the network camera 100 communicates with the IP terminal 800. The call call setup process between the cameras 100 is terminated.

If the network camera 100 is in a data transmission possible state, the network camera 100 transmits a response message (ACK) to the IP exchanger 700 (S130).

When the IP exchanger 700 receives the response message from the network camera 100, the IP exchanger 700 transmits the response message to the IP terminal 800 that has transmitted the data request message (S 140). At this time, the IP switch 700 transmits the support information of the network camera 100 to the IP terminal 800.

The monitor transmits the password information to the IP exchanger 700 using the IP terminal 800 (S 150). That is, when the network camera 100 is in a state where data can be transmitted, the monitor inputs password information.

The IP exchanger 700 performs an authentication procedure by checking whether the password information received from the IP terminal 800 matches the preset password information (S 160).

When the authentication procedure is completed, the IP exchanger 700 requests data transmission to the network camera 100 (S 170), and when the data transmission is requested, the network switch 100 transmits the video data or the audio data to the IP terminal ( 800) (S 180).

In this case, the network camera 100 may transmit the image data or the audio data according to the function selection selected by the monitor.

The IP terminal 800 outputs an image or an audio corresponding to the image data or the audio data received from the network camera 100 (S 190).

Then, when the monitor returns to the location where the display means 400 is installed or does not need to monitor, the monitor selects the end of the call, and the IP terminal 800 ends the data reception when the monitor selects the end of the call (S). 200).

7 is a flowchart for explaining the flow of the monitoring method of the monitoring system according to a preferred embodiment of the present invention.

Referring to FIG. 7, when the monitor observes the display means 400 and moves, the monitor selects the telephone number and the call request key of the network camera 100 in the IP terminal 800 that is carried, and the IP terminal 800. When the call request key is selected, the data request message in which the phone number of the network camera 100 is set as the called phone number is transmitted to the IP switch 700 (S 300).

The IP exchanger 700 checks the IP address information of the network camera 100 corresponding to the incoming call number of the received data request message, and transmits the data request message to the corresponding network camera 100 (S 310).

If the network camera 100 receives the data request message, the network camera 100 checks the current data transmission possible state (S 320).

If the network camera 100 is currently transmitting data to another IP terminal 800, the network camera 100 determines that the data transmission is impossible and transmits an unresponsive message to the IP exchange 700, and the IP exchange 700 cannot respond. When the message is received, the call call setup process between the IP terminal 800 and the network camera 100 ends (S330).

If the network camera 100 is capable of transmitting data, the network camera 100 transmits a response message to the IP exchange 700 (S340).

When the IP exchanger 700 receives the response message from the network camera 100, the IP switch 700 transmits support information of the corresponding network camera 100 to the IP terminal 800 while transmitting the response message to the IP terminal 800 (S 350). ).

Support information transmitted from the IP exchanger 700 to the IP terminal 800 may be codec information or IP protocol information obtained by compressing phase data and voice data used by the corresponding network camera 100.

If the network camera 100 is in a data transmission state, the monitor inputs password information to the IP exchanger 700 using the IP terminal 800 (S360).

The IP exchanger 700 performs an authentication procedure for checking whether the password information input from the IP terminal 800 and the preset password information match (S370), and the input password information does not match the preset password information. If not, the connection process between the IP terminal 800 and the network camera 100 ends (S380).

When the authentication switch is completed, the IP switch 700 requests a data transmission to the corresponding network camera 100 (S390).

When the data transmission is requested, the network camera 100 transmits the image data or the audio data to the corresponding IP terminal 800 (S400).

In this case, the network camera 100 transmits image data, audio data, or video / audio data according to a function selection that the monitor selects through the IP terminal 800.

The IP exchanger 700 is connected between the network camera 100 and the IP terminal 800 so that a call request message is transmitted to the corresponding IP terminal 800 while the network camera 100 is transmitting data to the IP terminal 800. It is checked whether it is received (S410).

When the IP terminal 800 receives the call request message to the corresponding IP terminal 800, the IP terminal 800 processes the call request message received to the corresponding IP terminal 800 according to the option information set in the corresponding IP terminal 800 (S420). ).

That is, the option information is a data request message received from the network camera 100 when the data request message is received from the IP terminal 800 in a state where a call call between the IP terminal 800 and the network camera 100 is set. Functions such as suspension, cancellation of transmission, and termination of a call are set, and the IP switch 700 processes the call of the corresponding IP terminal 800 according to the option information of the corresponding IP terminal 800.

In addition, when the monitor does not need to monitor through the IP terminal 800, the monitor selects the call termination key of the IP terminal 800, and when the call termination key is selected, the IP terminal 800 terminates data reception (S). 430).

Although the present invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that various modifications and changes are possible within the technical spirit of the present invention, and such modifications and modifications belong to the appended claims.

As described above, according to the present invention, the monitor can be monitored by using the portable terminal even when the monitor is out of the position where the display means is installed.

In addition, even if a separate additional device is not implemented in the monitoring system, the monitor can monitor regardless of the location, thereby improving space / price efficiency.

Claims (15)

In the surveillance system, A plurality of cameras provided with a microphone and providing video data or audio data according to video and audio of an installed area; It is carried by a supervisor who monitors the video and audio of the area, and transmits a data request message including the telephone number information of the camera to the network according to the selection of the supervisor, and the video data or audio from the camera through the network. A plurality of IP terminals for receiving and outputting data; And The data request message received from each IP terminal is transmitted to the camera, and if the camera is capable of data transmission, the camera connects the IP terminal through the network so that the IP terminal receives the image data from the camera. Or a camera comprising an IP switch for receiving voice data. The method of claim 1, wherein the IP exchanger, A database storing telephone number information, support information, or option information corresponding to IP address information of each camera; And When the IP address information corresponding to the telephone number information included in the data request message received from each IP terminal is retrieved from the database, the data request message is transmitted to the corresponding camera, and when a response message is received from the camera, Surveillance system using a camera comprising a camera call processing unit for transmitting the support information of the camera to the IP terminal. The method of claim 2, wherein the support information, And at least one of video codec information for processing the image data by the camera, voice codec information for processing the voice data, and IP protocol information used by the camera. The method of claim 2, wherein the option information, When a call request message is received to the IP terminal while the IP terminal receives the image data or audio data from the camera, during the suspension, transmission cancellation, or termination of connection of the video data or audio data received from the camera. Surveillance system using camera which is information which sets one. The method of claim 2 or 4, wherein the camera call processing unit, And a call request message received by the IP terminal while the IP terminal and the camera are connected through a network, the camera processing the call request message according to the option information. The method of claim 1, wherein the monitoring system, A DVR system having a plurality of digital cameras for transmitting video or audio signals, a DVR server, and a gateway for transmitting the video or audio signals to the network; And And a monitoring server for storing the video data or the audio data received from each camera or the DVR system and outputting the same through a display means. The method of claim 1, wherein the IP terminal, A message processing unit which generates the data request message in which the telephone number information input by the monitor is set as an incoming telephone number; And And a data processing unit which grasps support information received from the IP exchanger and processes and outputs the image data or audio data received from the camera based on the support information. The method of claim 1, wherein the IP terminal, And transmitting the password information input by the monitor to the IP exchange when the camera is in a data transmission state. The method of claim 8, wherein the IP exchanger, And if the password information received from the IP terminal matches preset password information, requesting data transmission to the camera. In the monitoring method of a monitoring system, Transmitting a data request message to an IP switch using an IP terminal when the monitor leaves a location where display means for outputting video or audio corresponding to video or audio data received from a plurality of cameras is installed; Sending, by the IP exchange, the data request message to the camera; Checking, by the camera, a data transmission state and transmitting a response message to the IP exchange if the data transmission state is possible; When the IP exchange receives a response message from the camera, transmitting support information of the corresponding camera to the IP terminal and requesting data transmission to the camera; Transmitting, by the camera, the video data or audio data to the corresponding IP terminal when the data transmission is requested; And monitoring, by the IP terminal, the image data or the audio data based on the assistance information. The method of claim 10, wherein the transmitting of the data request message to the camera comprises: Storing, by the IP exchange, telephone number information, support information, or option information corresponding to the IP address information of each camera; And searching for a camera corresponding to the telephone number information included in the data request message received from the IP terminal, and transmitting the data request message to the corresponding camera. The method of claim 11, wherein the option information, When a call request message is received to the IP terminal while the IP terminal receives the video data or audio data from the camera, pause, cancel transmission or terminate the connection of the video data or audio data received from the camera. Surveillance method using a camera which is information for setting any one. The method of claim 10, If the IP exchange receives a call request message while the IP terminal receives the video data or audio data from the camera, the IP exchange process the call request message according to option information. . The method of claim 10, wherein the requesting data transmission to the camera comprises: Transmitting, by the IP terminal, password information input by the monitor to the IP exchange when the camera is capable of transmitting data; And And requesting data transmission to the camera when the password information received from the IP terminal matches the password information received from the IP terminal. The method of claim 10, wherein the support information, And at least one of image codec information for processing the image data by the camera, voice codec information for processing the voice data, and IP protocol information used by the camera.

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