KR100493475B1 - Remote monitoring camera system and connection processing method - Google Patents

Abstract

The present invention relates to a remote monitoring camera system and a connection processing method thereof. More particularly, the H.323 protocol is provided in a camera system with a built-in web server to simultaneously handle not only a web browser but also an H.323 videophone. The present invention relates to a remote monitoring camera system and a connection processing method thereof.

The remote monitoring camera system of the present invention is H.225.O composed of RTP / RTCP as a standard standard for call processing when a control terminal remotely connected to a general network camera system is an H.323 video telephone. It is further provided with a layer controller, a system controller for defining a standard required for establishing a call with the control terminal, grasping a configurability of a control terminal for calling, and setting a mode and an RTP session.

Description

Remote monitoring camera system and connection processing method

The present invention relates to a remote monitoring camera system and a connection processing method thereof. More particularly, the H.323 protocol is provided in a camera system with a built-in web server to simultaneously handle not only a web browser but also an H.323 videophone. The present invention relates to a remote monitoring camera system and a connection processing method thereof.

As one of the Internet use fields, many remote video surveillance systems using the Internet have been developed.

First, install a web server on a personal computer (PC) commonly used in homes and businesses, and install an external sensor that can detect abnormal conditions such as cameras and unauthorized intrusions, fires, and gas leaks. There is a method (patent application No. 10-2000-0040753) for performing the situation coping.

In addition, by using a camera system with a built-in web server, a method of performing on-site monitoring through a web browser at any place connected to the Internet (Patent Application No. 20-2002-0019630), and using an H.323 compatible telephone. Remote control over the telephone network and the Internet network (patent application number: 10-2000-0001161) and the like.

Most network camera systems developed in the related art have a disadvantage in that they must be connected and used only with a personal computer (PC) connected to the Internet.

 In more detail, the remote monitoring system that performs video monitoring, external device control, and driving control of the surveillance camera from a remote surveillance system via a network, as shown in FIG. The PC 1 on which the PC 1 is operating processes all the surveillance information acquired through the surveillance information input device such as the camera 3, the microphone 5, the speaker 4, and the like through the Internet network 6 through the web server 2 There is a method of providing the monitoring information to the control terminal 7 of the user connected to the.

In addition, examples of another method of developing the method of FIG. 1A include the central processing unit 10, the storage unit 15, the video and audio processing unit 11/12, the TCP / IP communication unit 14, as shown in FIG. This system is composed of an input / output device 13 and a web server 2 that can detect and control the situation of the monitoring site, and are installed in a monitoring area by themselves, wherever the Internet network 6 can be used. There is a way to access the site and monitor the site.

Reference numeral 8 is a sensor, 9 is a field instrument.

However, in the monitoring system using the Internet network as shown in FIG. 1A, since the expensive PC 1 is used as a key element of the system, there are many problems in system installation, and the PC 1 is always kept in a power-on state. This has the disadvantage of requiring expensive system purchase cost and maintenance cost.

In addition, since the system as shown in FIG. 1B does not use the PC 1 but uses a single independent system, the problem of installation or maintenance is improved more than the method of FIG. 1A, but the control terminal 7 connected to the Internet network 6 is provided. For example, it can only be checked through a PC), the web running on the Internet is vulnerable to security, and other people can access the system to use the monitoring information, and can obtain administrative privileges in an abnormal way. Problem exists.

On the other hand, there is a method of remotely controlling the system through the Internet network using the H.323 application program by using the T.120 signal to start the remote control application program to control the system. The difficulty is that remote control is only possible through H.323 compliant phones.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide a web of a general PC connected to the Internet because it can simultaneously handle a connection through the web and an international standard H.323 videophone. In addition to supporting multiple simultaneous connections through a browser, it also supports multiple simultaneous connections through H.323 videophones or H.323 applications, so H.323 video can be monitored through various connections according to the user's situation. The present invention provides a remote monitoring camera system and a connection processing method thereof that can increase the use of a telephone.

Another object of the present invention, since the web server is operating at the same time, it is possible to easily set the system detailed settings for performing the monitoring function using the H.323 communication protocol using a web page, the system user Remote monitoring camera system and its connection processing that can handle the situation immediately because the system automatically attempts to make a telephone call to the H.323 videophone when the situation occurs. To provide a method.

In order to achieve the above object, the present invention provides a video / audio processing unit for compressing a video / audio signal, an input / output device for interfacing with a sensor and a field monitoring at a monitoring site, an HTTP processing unit including a storage device, a central processing unit and In the remote monitoring camera system consisting of a TCP / IP communication unit for communicating with an external control terminal through the Internet network:

When the control terminal is an H.323 video telephone, as a standard standard for call processing, the H.225.O layer unit configured of RTP / RTCP and a standard required for call setup with the control terminal are defined. It is further provided with an H.323 processing unit configured to control the configuration of the control terminal to configure the mode and the RTP session, depending on whether the connected control terminal is an H.323 videophone or a PC that supports a web browser. It is to provide a remote monitoring camera system characterized in that the processing charge is changed, and the signal input from the video / audio processing unit is compressed and transmitted to the HTTP processing unit or the H.323 processing unit to be transmitted.

In order to achieve the above object, the present invention, a remote monitoring camera system for simultaneously processing the connection via the web and H.323 video telephone, PC and H.323 connected to the remote monitoring camera system via the Internet network A method for processing a connection in a surveillance control system consisting of a video telephone, comprising: a connection by a PC supporting a web browser in a remote surveillance camera system (HTTP connection) or a connection by an H.323 video telephone (H.323) Connection), in the case of an HTTP connection, sending an initial screen to a PC to perform user authentication, and, if authentication is successful, a component that handles an H.323 connection and a component that handles an HTTP connection. Processing the setting or monitoring data transmission until the termination of the connection; in the case of an H.323 connection, establishing a call based on the H.323 communication protocol; Initial communication and feature exchange through H.245 session establishment, establishing a RTP session for each medium to determine a communication path of a medium for actual call, and the remote surveillance camera system and the H.323 video telephony period. The present invention provides a method for processing a connection of a remote monitoring camera system, characterized in that it comprises a step of processing communication until the connection is terminated.

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Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

2 is a block diagram of a remote monitoring camera system 500 according to the present invention.

As shown, the central processing unit 300, the TCP / IP communication unit 310, the H.323 processing unit 510, HTTP processing unit 520 is composed of.

In addition, the H.323 processor 510 is composed of an image processor 200, a voice processor 210, a system controller 400, and an H.225.0 layer unit 410, and the HTTP processor 520 is an image processor 200. ), The voice processor 210, the input / output device 220, the storage device 230, and the web server 240.

Looking at the function of each component, the TCP / IP communication unit 310 is responsible for the data transmission of the remote monitoring camera system 500, the system 500 of the client (control terminal in Figure 1a) and the control data reception.

The processing charge is changed depending on whether the client connected to the remote monitoring camera system 500 is a PC 800 or an H.323 video telephone 700 using a web browser.

In the case of a web connection by the PC 800, the HTTP processing unit 520 processes the call. In the case of a connection by the H.323 videophone 700, a call setup is performed by the H.225.0 layer unit 410. The paper is processed by the H.323 processing unit 520.

The H.225.0 rare part 410 is a standard standard for call processing, and is composed of RTP / RTCP.

The system control unit 400 defines a standard required for a call setup procedure, grasps the capability of the mobile terminal, that is, the H.323 videophone 700, and sets a mode and an RTP session.

The web server 240 processes a request of a web browser according to RFC-2068, and the input / output device 220 interfaces with a sensor 130 for detecting a situation of a monitoring site and an on-site instrument 140 operating when a situation occurs. Handles the interface with the system to make it available.

The video / audio processor 200/210 transmits the signal input from the camera / microphone 100/110 to the H.323 processor 510 or the HTTP processor 520 to transmit the compressed signal, and the speaker 110. Outputs the received voice data to the outside.

3 is an embodiment of a remote video surveillance control system using the system shown in FIG.

As a control terminal for controlling and monitoring the remote monitoring camera system 500 according to the present invention at a remote location, a PC 800 supporting a web browser and an H.323 video telephone 700 supporting H.323 communication protocols are provided. .

Through a web browser of a PC 800 connected to the Internet network 600, such as a conventional network camera, or through computer software or an H.323 video telephone 700 that complies with the H.323 protocol, such as NetMeeting, Monitoring site of the remote monitoring camera system 100 connected to 600 may be monitored.

In order to perform the monitoring function using the H.323 communication protocol, the monitoring function setting / cancellation, the motion detection area setting / cancellation, and the countermeasure setting should be set using the H.323 video telephone 700. It is not easy to set up remotely using the video phone 700, in this case, it is possible to easily set the remote monitoring camera system 500 for performing a surveillance function through the web server 240 easy user interface.

In addition, the web server 240 may simultaneously handle the connection of multiple H.323 video telephones 700 as the multiple server 800 simultaneously handles the connection.

Similar to the PC connection of the web browser, the detailed settings of the remote monitoring camera system 500 can be changed or the remote monitoring camera system can be changed only through the H.323 video phone 700 which is successfully authenticated through the user authentication process during the H.323 video phone connection process. Can be controlled.

When the sensor 130 detects a motion or an outsider's approach, the H.323 communication protocol is used in addition to the method of turning on a field light 140, making a sound of intrusion, or storing an image at that time. It automatically calls to the set H.323 video phone 700 of the administrator set up to watch in real time while watching the video of the monitoring site as well as performs real-time voice communication.

4 is a flow chart of a connection process of the camera system according to the present invention.

Initially, the remote monitoring camera system 500 waits for the connection of the control terminals 700 and 800, and when a request for connection of the control terminal is received (S402), the connection is made by the H.323 video telephone 700 (H.323). 323 connection) or a connection by a web browser such as a PC 800 (HTTP) connection (S404).

When the H.323 connection is processed by the H.323 processing unit 510, the system control unit 400 of the H.323 processing unit establishes a call based on the H.323 communication protocol (S420), and establishes an H.245 session. (S422) through the initial communication and the characteristics exchange.

Next, the system control unit 400 establishes a medium-specific RTP session (S424) to determine the communication path of the medium for the actual call, and then performs actual communication between the remote monitoring camera system 500 and the H.323 videophone 700. This is done (S426).

It is determined whether the connection is disconnected during the communication (S428). If the connection is disconnected, the communication returns to the state where the initial control terminal is connected and waits for the next control terminal connection.

If the connection is not broken, communication between the remote monitoring camera system and the H.323 videophone is continued (S426).

In the case of an HTTP connection, the HTTP processing unit 520 processes the web server unit 240, and the HTTP processing unit 240 transmits an initial page to the PC 800 (S406), and the user authentication process using the ID and password input from the PC. (S408), only when the authentication is successful, receives a request of the control terminal (S410) and processes the request of the control terminal (S412).

Here, the request of the control terminal may be various, such as setting the HTTP processing unit 520 and the H.323 processing unit 510, data transmission of the monitoring site.

Thereafter, the web server 240 determines whether the connection is disconnected (S414). If the connection is disconnected, the web server 240 returns to the state of waiting for the initial control terminal connection and waits for the next control terminal connection.

If the connection is not disconnected, a request of the control terminal is received (S410) and processed (S412).

As described above, according to the present invention, a web browser of a general PC connected to the Internet is able to simultaneously handle a connection through the web and a connection through the international standard H.323 videophone in the remote monitoring camera system using the Internet network. In addition to supporting multiple simultaneous connections through H.323 videophones or H.323 applications, multiple simultaneous connections are also supported, so that H.323 videophones can be monitored through various connections according to the user's situation. Can increase the use of.

In addition, since the web server is operating at the same time, detailed system setting for performing the monitoring function using H.323 communication protocol can be easily set up by using the web page. Two-way voice communication with the monitoring site is possible while the remote monitoring camera system can automatically attempt to make a telephone call to the H.323 videophone when the situation occurs.

1A and 1B are configuration diagrams of a conventional remote video surveillance control system.

2 is a block diagram of a remote monitoring camera system according to the present invention.

3 is an embodiment of a remote video surveillance control system using the system shown in FIG.

4 is a flowchart of a connection process of a camera system according to the present invention.

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

100: camera 110: speaker

120: microphone 130: sensor

140: field instrument 200: image processing unit

210: voice processing unit 220: input and output device

230: storage device 240: web server

300: central processing unit 310: TCP / IP communication unit

400: system control unit 410: H.225.0 layer unit

500: remote monitoring camera system 510: H.323 processing unit

520: HTTP processing unit 600: Internet network

700: H.323 videophone 800: PC

Claims (4)

Video / audio processing unit for compressing video / audio signal, I / O unit interfacing with sensor and field monitoring at monitoring site, HTTP processing unit consisting of storage unit, central processing unit, and communication with external control terminal through internet network In the remote monitoring camera system composed of TCP / IP communication unit responsible for: When the control terminal is an H.323 video telephone, as a standard standard for call processing, the H.225.O layer unit configured of RTP / RTCP and a standard required for call setup with the control terminal are defined. It is further provided with an H.323 processing unit comprising a system control unit for determining the configuration capabilities of the control terminal to configure the mode and the RTP session, Depending on whether the connected control terminal is an H.323 video phone or a PC that supports a web browser, the processing charge is changed, and the signal input from the video / audio processing unit is compressed and transmitted to the HTTP processing unit or the H.323 processing unit to be transmitted. Remote surveillance camera system characterized in that. Remote surveillance camera system that handles the connection via the web and H.323 videophone at the same time, and the surveillance control system consisting of a PC and H.323 videophone connected to the remote surveillance camera system through the Internet. In the method of processing; Determining whether the remote monitoring camera system is connected by a PC supporting a web browser (HTTP connection) or an H.323 video telephone (H.323 connection); In case of HTTP connection, transmitting the initial screen to the PC and performing user authentication, If the authentication is successful, processing the setting of the component that handles the H.323 connection and the component that handles the HTTP connection or the data transmission of the monitoring site until the connection is terminated; In the case of an H.323 connection, establishing a call based on the H.323 communication protocol; Initial communication and feature exchange through H.245 session establishment; Establishing an RTP session for each medium to determine a communication path of the medium for the actual call; Processing communication with the remote monitoring camera system until the connection is terminated in the H.323 video telephone period. Connection processing method of a remote monitoring camera system, characterized in that consisting of. delete delete