WO2011023024A1 - 一种监控信息传输的方法及系统 - Google Patents

一种监控信息传输的方法及系统 Download PDF

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Publication number
WO2011023024A1
WO2011023024A1 PCT/CN2010/074175 CN2010074175W WO2011023024A1 WO 2011023024 A1 WO2011023024 A1 WO 2011023024A1 CN 2010074175 W CN2010074175 W CN 2010074175W WO 2011023024 A1 WO2011023024 A1 WO 2011023024A1
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WO
WIPO (PCT)
Prior art keywords
communication terminal
visual communication
configuration information
video monitoring
video
Prior art date
Application number
PCT/CN2010/074175
Other languages
English (en)
French (fr)
Inventor
付永刚
段新平
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP10811184.0A priority Critical patent/EP2461580A4/en
Priority to BR112012004084A priority patent/BR112012004084A2/pt
Publication of WO2011023024A1 publication Critical patent/WO2011023024A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/40—Support for services or applications
    • H04L65/403—Arrangements for multi-party communication, e.g. for conferences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
    • H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/14—Systems for two-way working
    • H04N7/141—Systems for two-way working between two video terminals, e.g. videophone

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for monitoring information transmission based on visual communication and video surveillance. Background technique
  • the main object of the present invention is to provide a method and system for monitoring information transmission based on visual communication and video surveillance, so that monitoring information can be transmitted to the visual communication terminal in real time.
  • a system for monitoring information transmission comprising:
  • a visual communication terminal configured to send a monitoring request to the video monitoring front end, receive monitoring information sent by the video monitoring front end, and display or send to the remote visual communication terminal of the visual communication system locally, where the visual communication terminal has Decoding function for local display, and encoding function for sending to the remote visual communication terminal;
  • the video monitoring front end is configured to receive a monitoring request of the visual communication terminal, and send the monitoring information to the visual communication terminal.
  • the visual communication terminal is further configured to send a multicast message for querying the video monitoring front end, receive a response message returned by the video monitoring front end, and save the information of the video monitoring front end;
  • the video monitoring front end is further configured to receive a multicast message sent by the visual communication terminal, and return a response message to the visual communication terminal, where the response message includes a parameter indicating the identity of the video monitoring front end.
  • the video monitoring front end is further configured to send a multicast message indicating the identity of the video surveillance front end to the visual communication terminal after the self-starting;
  • the visual communication terminal is further configured to receive a multicast packet sent by the video monitoring front end, and save the information of the video monitoring front end.
  • the visual communication terminal is further configured to send a request for acquiring configuration information to the video surveillance front end, and obtain the configuration information of the video surveillance front end by using the acquisition configuration information returned by the video monitoring front end, and the video monitoring front end is further used for receiving the visual communication. And obtaining a configuration information request sent by the terminal, and returning a configuration information response to the visual communication terminal, where the configuration information response includes configuration information of the video monitoring front end.
  • the visual communication terminal After receiving the configuration information, the visual communication terminal is further configured to modify configuration information of the video surveillance front end according to the input of the user, and send a configuration configuration information request to the video monitoring front end, where the configuration configuration information request includes the modified configuration.
  • the video monitoring front end is further configured to receive a configuration configuration information request sent by the visual communication terminal, save the received configuration information, and set to be valid.
  • a method of monitoring information transmission comprising:
  • the visual communication terminal sends a monitoring request to the video monitoring front end
  • the video monitoring front end After receiving the monitoring request, the video monitoring front end sends monitoring information to the visual communication terminal; the visual communication terminal displays the received monitoring information and/or the remote visual communication terminal sent to the visual communication system, the visual communication The terminal has both decoding function for local display and The encoding function is sent to the remote visual communication terminal.
  • the method further includes:
  • the visual communication terminal sends a multicast message for querying the video monitoring front end
  • the video monitoring front end After receiving the multicast packet, the video monitoring front end returns a response message to the visual communication terminal, where the response message includes a parameter for indicating the identity of the video surveillance front end;
  • the visual communication terminal After receiving the response message, the visual communication terminal saves the information of the video monitoring front end.
  • the method further includes:
  • the video monitoring front end actively sends a multicast message to the visual communication terminal after the self-starting, and the multicast message includes a parameter for indicating the identity of the video monitoring front end;
  • the visual communication terminal After receiving the multicast packet, the visual communication terminal saves the information of the video monitoring front end.
  • the method also includes:
  • the visual communication terminal sends a request for acquiring configuration information to the video monitoring front end
  • the video monitoring front end After receiving the request for obtaining the configuration information, the video monitoring front end sends a response to the configuration information to the visual communication terminal, where the configuration information response includes the configuration information of the video monitoring front end;
  • the visual communication terminal After receiving the response to the configuration information, the visual communication terminal displays the configuration information of the video surveillance front end included in the response to obtain the configuration information.
  • the method further includes:
  • the visual communication terminal sends a setting configuration information request to the video monitoring front end, where the setting configuration information request includes the modified configuration information;
  • the video monitoring front end After receiving the configuration configuration information request, the video monitoring front end saves the received configuration information and sets it to take effect.
  • the visual communication terminal after the visual communication terminal receives the monitoring information, it may be displayed locally or may be re-coded and sent to the remote visual communication terminal of the visual communication system, that is, the visual communication terminal has both decoding. Function for local display, and encoding function for sending to the remote visual communication terminal, thereby maintaining the visual communication system independent of the video surveillance system.
  • visual communication and video surveillance can be combined to transmit monitoring information as an input source to the visual communication system, so that the monitoring information can be displayed on the local visual communication terminal or through the visual communication system.
  • the local visual communication terminal can transmit the monitoring information to the other visual communication terminal in the same video conference as the visual communication terminal, so that the monitoring information can pass
  • the users who are not in the local can also know the monitoring situation in time, expand the scope of use of visual communication and video surveillance, and greatly improve the efficiency of the two.
  • FIG. 1 is a schematic diagram of a system composition of visual communication and video surveillance in the present invention
  • FIG. 2 is a schematic flowchart of a video communication front end automatically discovered by a visual communication terminal according to the present invention
  • FIG. 3 is a video communication terminal of the present invention. Schematic diagram of the process of controlling the front end to control
  • FIG. 4 is a schematic flow chart of the video communication terminal acquiring the media data of the video monitoring front end according to the present invention.
  • the visual communication system includes: a point-to-point video conferencing system and a multi-point video conferencing system. If the two systems of the visual communication system and the video surveillance system can be integrated, the monitoring information can be transmitted in real time.
  • the visual communication terminal sends a monitoring request to the video monitoring front end; after receiving the monitoring request, the video monitoring front end sends the monitoring information to the visual communication terminal. After receiving the monitoring information, the visual communication terminal may display it locally or send it to the remote visual communication terminal of the visual communication system.
  • the visual communication terminal in the present invention has both a decoding function for local display and an encoding function for transmitting to a remote visual communication terminal.
  • the monitoring information is monitoring related content obtained by the video monitoring front end, such as monitoring images.
  • the visual communication terminal After the visual communication terminal starts and searches for the video monitoring front end on the network, the visual communication terminal sends a monitoring request to the video monitoring front end, and the video monitoring front end returns the media description information to the visual communication terminal, and the visual communication terminal sends the video to the video.
  • the monitoring front end sends a media stream request for acquiring monitoring information and starts a play request, and the video monitoring front end sends the media data to the visual communication terminal, where the media data is the monitoring information obtained by the video monitoring front end through monitoring; the visual communication terminal will receive the The media data is decoded and displayed locally or sent to a remote visual communication terminal of the visual communication system.
  • FIG. 1 is a schematic diagram of a system composition of visual communication and video surveillance in the present invention.
  • the system for realizing visual communication and video surveillance according to the present invention includes: a visual communication terminal
  • the visual communication terminal 11 is configured to send a monitoring request to the video monitoring front end 12, and receive the monitoring information sent by the video monitoring front end 12, which is displayed locally or sent to the remote end of the visual communication system.
  • the communication terminal 11 has both a decoding function for local display and an encoding function for transmitting to the remote visual communication terminal.
  • the video monitoring front end 12 is configured to receive the monitoring request of the visual communication terminal 11, The communication terminal 11 transmits monitoring information.
  • the visual communication terminal 11 is configured to send a multicast message for querying the video monitoring front end, receive a response message returned by the video monitoring front end 12, and save the information of the video monitoring front end 12,
  • the video surveillance front end 12 is configured to receive the multicast message sent by the visual communication terminal 11, and return a response message to the visual communication terminal 11 in a unicast manner, the response report.
  • the text contains parameters indicating the identity of the video surveillance front end.
  • the video monitoring front end 12 is configured to send a multicast message indicating the identity of the video monitoring front end to the visual communication terminal 11 after being activated by itself; the visual communication terminal 11 is configured to receive the multicast message sent by the video monitoring front end 12 The information of the video surveillance front end 12 is saved for subsequent selection and control of the video surveillance front end 12.
  • visual communication end The terminal 11 is configured to send a configuration information request to the video surveillance front end 12, and obtain configuration information of the video surveillance front end 12 by receiving the configuration information returned by the video surveillance front end 12; the video monitoring front end 12 is configured to receive the visual communication.
  • the acquisition configuration information request sent by the terminal 11 returns an acquisition configuration information response to the visual communication terminal 11, and the acquisition configuration information response includes configuration information of the video monitoring front end 12.
  • the visual communication terminal 11 may be further configured to modify the configuration information of the video monitoring front end 12 according to the input of the user, and send a setting configuration information request to the video monitoring front end 12, where the setting configuration information request is And including the modified configuration information, receiving the setting configuration information response returned by the video monitoring front end 12; correspondingly, the video monitoring front end 12 is further configured to receive the setting configuration information request sent by the visual communication terminal 11, and save the received configuration information. When it is set to be valid, the setting configuration information response is returned to the visual communication terminal 11.
  • the visual communication terminal 11 can also be used to interact with the video surveillance front end 12 to receive a port for monitoring information.
  • the visual communication terminal 11 has a function of a Session Initiation Protocol (SIP) terminal or an H.323 video conference terminal.
  • the visual communication terminal 11 includes both a hardware terminal and a software terminal.
  • the input video source of the visual communication terminal 11 can be either a camera directly connected thereto or a video transmitted from the video monitoring front end 12 on the network, and the implementation can be developed on the existing visual communication terminal, and can be developed. A new visual communication terminal.
  • the visual communication terminal 11 and the video monitoring front end 12 mainly have three connection modes: the first type is connected through a local area network (LAN); the second type is connected through a wireless network; the third type is connected through a serial port such as RS232. .
  • LAN local area network
  • RS232 serial port
  • the first type of information is control signaling, such as setting configuration information request, mainly implementing setting of video parameters of the video monitoring front end 12 by the visual communication terminal 11 and imaging of the video monitoring front end 12 Head control.
  • the setting information of the video parameters includes: brightness, chrominance, saturation, contrast, and video format, video bit rate, and video frame rate.
  • Control of the camera includes settings for turning the camera up, down, left, and right, as well as settings for aperture and focus.
  • the interface for controlling signaling can be implemented by formulating a private protocol interface; it can also directly communicate with the web server (WEBSERVER) on the video monitoring front end 12 by means of a browser-supporting manner on the visual communication terminal 11.
  • WEBSERVER web server
  • the private protocol interface refers to the transmission of control signaling by using the Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP), and the parameters and formats of the control signaling are determined as needed.
  • the parameters generally include the message type and message body.
  • the message types include: video parameter settings, encoding parameter settings, camera control, and so on.
  • the message body refers to the specific content of each message type, for example: The message body corresponding to the video parameter setting type is brightness, chroma, saturation and contrast.
  • the visual communication terminal 11 communicates with the video surveillance front end 12 through a proprietary protocol interface, mainly for the purpose of realizing the transfer of control signaling between the two. If the video surveillance front end 12 supports WEBSERVER, the two can communicate through the Hypertext Transfer Protocol (HTTP), and the WEB browser can be embedded on the visual communication terminal 11, which is equivalent to the user directly in the video. Control is performed on the monitoring front end 12.
  • HTTP Hypertext Transfer Protocol
  • the second type of information is media control signaling, and mainly the visual communication terminal 11 acquires the monitoring information (including video and audio data) encoded by the video surveillance front end 12. After the visual communication terminal 11 obtains the media data, that is, the monitoring information, it can be displayed locally or transmitted to the remote visual communication terminal as a local video source.
  • the media control signaling interface can be implemented by setting a private protocol interface.
  • the media data of the video surveillance front end 12 can also be directly obtained by the real-time streaming protocol (RTSP) on the visual communication terminal 11.
  • RTSP real-time streaming protocol
  • the private protocol interface refers to the transmission of media control signaling through TCP or UDP, and the parameters and format of the control signaling are determined according to requirements.
  • the parameter content includes the media type, the encoding parameter, the address and port of the received media data.
  • the media control signaling exchanged between the visual communication terminal 11 and the video surveillance front end 12 is transmitted through the RTSP or the proprietary protocol interface, mainly for the subsequent visual communication terminal 11 to acquire the media data of the video surveillance front end 12. If RTSP is adopted, the visual communication terminal 11 functions as a client of the RTSP, and the video surveillance front end 12 serves as a server of the RTSP.
  • the third type of information is media data, and the media data transmitted by the visual communication terminal 11 and the video surveillance front end 12 is transmitted through a standard Real Time Transport Protocol (RTP).
  • RTP Real Time Transport Protocol
  • the visual communication terminal is used as a control point device, and the video surveillance front end is used as a controlled point device to achieve visibility.
  • the communication terminal automatically discovers the purpose of the video surveillance front end.
  • the private protocol interface can transmit messages based on TCP or UDP.
  • FIG. 2 is a schematic flowchart of the video communication front end automatically discovered by the visual communication terminal according to the present invention, and the specific steps of the video communication front end automatically detected by the visual communication terminal are as shown in FIG. 2 :
  • Step 201 The visual communication terminal sends a multicast message for querying the video monitoring front end.
  • Step 202 After receiving the multicast message sent by the visual communication terminal, the video monitoring front end returns a response message to the visual communication terminal in a unicast manner, where the response message includes a parameter for indicating the identity of the video monitoring front end.
  • Step 203 After receiving the response message, the visual communication terminal saves the information of the video monitoring front end for subsequent selection and control.
  • the video monitoring front end may also actively send a multicast message to the visual communication terminal after the self-starting, the multicast message includes a parameter for indicating the identity of the video monitoring front end; the visual communication terminal receives the video monitoring front end and sends the After the multicast packet is received, the information of the video surveillance front end is saved. If the video communication terminal automatically discovers multiple video surveillance front ends, the discovered video surveillance front end can be saved at the same time, and which one is selected, the user can set it on the visual communication terminal.
  • FIG. 3 is a schematic flowchart of controlling a video monitoring front end by a visual communication terminal according to the present invention, and the specific steps are as shown in FIG. 3:
  • Step 301 The user selects a discovered video surveillance front end to control on the visual communication terminal.
  • Step 302 The visual communication terminal sends a request for acquiring configuration information to the video monitoring front end to obtain configuration information of the corresponding video monitoring front end.
  • Step 303 After receiving the request for acquiring the configuration information, the video monitoring front end sends a response to the configuration information to the visual communication terminal, where the response to the configuration information includes the configuration information of the video surveillance front end.
  • Step 305 After the user completes the modification, the visual communication terminal sends a configuration configuration information request to the video surveillance front end, where the configuration configuration information request includes the modified configuration information, and the video monitoring front end is required to modify the configuration information.
  • Step 306 After receiving the setting configuration information request, the video monitoring front end saves the received configuration information and sets it to take effect, and sends a setting configuration information response to the visual communication terminal to notify the visual communication terminal that the configuration is successful.
  • FIG. 4 is a schematic flow chart of the video communication terminal acquiring the media data of the video monitoring front end according to the present invention, and the specific steps are as shown in FIG. 4:
  • Step 401 The visual communication terminal sends an monitoring request to the video monitoring front end as an RTSP client, such as an RTSP DESCRIBE request.
  • an RTSP client such as an RTSP DESCRIBE request.
  • Step 402 After receiving the video monitoring request, the video monitoring front end sends the video monitoring terminal to the visual communication terminal.
  • the media description information, the media description information may be included in the media monitoring response, such as the RTSP DESCRIBE response, and the media description information may be the format, port, etc. of the video and audio data.
  • the video corresponds to one port
  • the audio corresponds to one port
  • Step 403 After receiving the media description information, the visual communication terminal sends a request for obtaining a media stream to the video surveillance front end, and requests the video surveillance front end to provide monitoring information, where the request for obtaining the media stream may be an RTSP SETUP request.
  • Step 404 After receiving the request for obtaining the media stream, the video monitoring front end sends a response to the media stream, such as an RTSP SETUP response, to the visual communication terminal.
  • a response to the media stream such as an RTSP SETUP response
  • Step 405 After receiving the media response, the visual communication terminal sends a start play request to the video surveillance front end, and the start play request may be an RTSP PLAY request.
  • Step 406 After receiving the start play request, the video monitoring front end sends a play request response, such as an RTSP PLAY response, to the visual communication terminal.
  • a play request response such as an RTSP PLAY response
  • Step 407 After sending the play request response, the video monitoring front end sends a media stream to the visual communication terminal to implement real-time transmission of the monitoring information, and the media stream may be sent based on the RTP.
  • the visual communication terminal may decode the media stream to display the media data locally; or may send the received media stream to the remote visual communication terminal through the video call.
  • the remote visual communication terminal performs display.
  • Decoding refers to calling a decoding library corresponding to the media data in the video monitoring front end for decoding.
  • Step 501 After the visual communication terminal is started, the video monitoring front end on the network is found through automatic discovery.
  • the visual communication terminal sends a multicast message for querying the video monitoring front end. After receiving the multicast packet, the video surveillance front end returns a response packet to the visual communication terminal in a unicast manner.
  • the response packet includes parameters for indicating the identity of the video surveillance front end. After the visual communication terminal receives the response message, Save it to select and control the video surveillance front end.
  • Step 502 The user selects a discovered video surveillance front end as a video input source of the visual communication terminal on the visual communication terminal.
  • Step 503 The visual communication terminal sends control signaling for obtaining the configuration information request to the video surveillance front end selected by the user, so as to display configuration information of the video monitoring front end, thereby facilitating configuration by the user.
  • the visual communication terminal sends a request for acquiring configuration information to the video surveillance front end. After receiving the request for obtaining the configuration information, the video monitoring front end sends a response to the configuration information to the visual communication terminal, where the configuration information response includes the configuration information of the video monitoring front end. After receiving the response to the configuration information, the visual communication terminal displays the configuration information of the video surveillance front end included in the response to the configuration information, and allows the user to modify. After the user completes the modification through the input on the visual communication terminal, the communication terminal may send a setting configuration information request to the video monitoring front end, and the setting configuration information request includes the modified configuration information. After receiving the configuration configuration information request, the video monitoring front end saves and sets the received configuration information to take effect, and sends a setting configuration information response to the visual communication terminal.
  • Step 504 The visual communication terminal sends media control signaling indicating the monitoring request to the video monitoring front end.
  • Step 505 After receiving the media control signaling, the video monitoring front end sends the media description information to the visual communication terminal, where the media description information may be included in the media monitoring response.
  • Step 506 After receiving the media description information, the visual communication terminal interacts with the video monitoring front end to receive a port for receiving the media stream according to the media description information, and then sends a request for obtaining the media stream to the video monitoring front end.
  • Step 507 After receiving the request for obtaining the media stream, the video monitoring front end sends the media stream to the visual communication terminal based on the RTP.
  • the media streams described above include audio streams and/or video streams.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Closed-Circuit Television Systems (AREA)

Abstract

本发明公开了一种基于可视通信与视频监控相融合的监控信息传输的方法，可视通信终端向视频监控前端发送监控请求；视频监控前端收到监控请求后，向可视通信终端发送监控信息；可视通信终端收到监控信息后，可以在本地显示，也可以发送给可视通信系统远端可视通信终端。本发明还同时公开了一种基于可视通信与视频监控相融合的监控信息传输的系统。采用本发明提供的方法及系统，可视通信终端既具有解码功能以便进行本地显示，又具有编码功能以便发给远端的可视通信终端，使监控信息能够通过可视通信系统实时传输，在本地可视通信终端显示或作为一路输入源传到可视通信系统中，从而实现可视通信与视频监控相融合。

Description

一种监控信息传输的方法及系统 技术领域
本发明涉及通信领域， 尤其涉及一种基于可视通信与视频监控相融合 的监控信息传输的方法及系统。 背景技术
目前， 很多企事业单位、 特别是大中型企业都已建立了视频监控系统， 主要用于对一些重要区域进行监控。 视频监控系统各监控点采集到的监控 图像通常只能够在监控终端上进行显示， 无法进行实时传输， 也就无法使 不在本地的用户及时了解监控情况， 这对于视频监控系统而言是一个很大 的不足。 发明内容
有鉴于此， 本发明的主要目的在于提供一种基于可视通信与视频监控 相融合的监控信息传输的方法及系统， 以使监控信息能够实时传送到可视 通信终端上。
为解决上述技术问题， 本发明的技术方案是这样实现的：
一种监控信息传输的系统， 该系统包括：
可视通信终端， 用于向视频监控前端发送监控请求， 接收视频监控前 端发送的监控信息， 在本地显示或发送给可视通信系统的远端可视通信终 端， 所述可视通信终端既具有解码功能以进行本地显示， 又具有编码功能 以发给远端的可视通信终端；
视频监控前端， 用于接收可视通信终端的监控请求， 向可视通信终端 发送监控信息。 所述可视通信终端， 还用于发送查询视频监控前端的组播报文， 接收 视频监控前端返回的响应 ^艮文， 保存视频监控前端的信息；
所述视频监控前端， 还用于接收可视通信终端发送的组播报文， 向可 视通信终端返回响应报文， 该响应报文中包含表明视频监控前端身份的参 数。
所述视频监控前端， 还用于在自身启动后主动向可视通信终端发送表 明视频监控前端身份的组播报文；
所述可视通信终端， 还用于接收视频监控前端发送的组播报文， 保存 视频监控前端的信息。
所述可视通信终端， 还用于向视频监控前端发送获取配置信息请求， 通过视频监控前端返回的获取配置信息响应获取视频监控前端的配置信 所述视频监控前端， 还用于接收可视通信终端发送的获取配置信息请 求， 向可视通信终端返回获取配置信息响应， 该获取配置信息响应中包含 视频监控前端的配置信息。
所述可视通信终端收到所述配置信息后， 进一步用于根据用户的输入 修改视频监控前端的配置信息， 向视频监控前端发送设置配置信息请求， 该设置配置信息请求中包含修改后的配置信息；
所述视频监控前端， 进一步用于接收可视通信终端发送的设置配置信 息请求， 保存收到的配置信息并设置为生效。
一种监控信息传输的方法， 该方法包括：
可视通信终端向视频监控前端发送监控请求；
视频监控前端收到监控请求后， 向可视通信终端发送监控信息； 可视通信终端显示收到的监控信息和 /或发送给可视通信系统的远端可 视通信终端， 所述可视通信终端既具有解码功能以进行本地显示， 又具有 编码功能以发给远端的可视通信终端。
所述发送监控请求之前， 进一步包括：
可视通信终端发送查询视频监控前端的组播报文；
视频监控前端收到所述组播报文后， 向可视通信终端返回响应报文， 该响应报文中包含用来表明视频监控前端身份的参数；
可视通信终端收到响应报文后， 保存视频监控前端的信息。
所述发送监控请求之前， 进一步包括：
视频监控前端在自身启动后， 主动向可视通信终端发送组播报文， 该 组播报文中包含用来表明视频监控前端身份的参数；
可视通信终端收到所述组播报文后， 保存视频监控前端的信息。
该方法还包括：
可视通信终端向视频监控前端发送获取配置信息请求；
视频监控前端收到获取配置信息请求后， 向可视通信终端发送获取配 置信息响应， 该获取配置信息响应中包含视频监控前端的配置信息；
可视通信终端收到获取配置信息响应后， 显示获取配置信息响应中包 含的视频监控前端的配置信息。
所述显示配置信息之后， 进一步包括：
可视通信终端向视频监控前端发送设置配置信息请求， 该设置配置信 息请求中包含修改后的配置信息；
视频监控前端收到设置配置信息请求后， 保存收到的配置信息并设置 为生效。
根据本发明提供的技术方案， 可视通信终端收到监控信息后， 可以在 本地显示， 也可以经过重新编码发送给可视通信系统的远端可视通信终端 , 即可视通信终端既具有解码功能以便进行本地显示， 又具有编码功能以便 发给远端的可视通信终端， 从而在保持可视通信系统与视频监控系统独立 性的同时， 又可以将可视通信与视频监控融合起来， 将监控信息作为一路 输入源传到可视通信系统中， 使监控信息可以在本地可视通信终端上显示、 或通过可视通信系统传送给远端可视通信终端， 即通过本地可视通信终端 能够将监控信息传送到远端与该可视通信终端在同一个视频会议中的其他 可视通信终端上， 使监控信息能够通过可视通信系统实时传输， 使不在本 地的用户也能及时了解监控情况， 扩展了可视通信和视频监控的使用范围， 大大提高了两者的使用效率。 附图说明
图 1为本发明中可视通信与视频监控相融合的系统组成示意图； 图 2为本发明中可视通信终端自动发现视频监控前端的流程示意图； 图 3为本发明中可视通信终端对视频监控前端进行控制的流程示意图； 图 4为本发明中可视通信终端获取视频监控前端的媒体数据的流程示 意图。 具体实施方式
目前， 很多企事业单位、 特别是大中型企业都已建立了可视通信系统。 可视通信系统包括： 点对点视频会议系统和多点视频会议系统。 如果能够 将可视通信系统和视频监控系统两套独立使用的系统相融合， 便能够很好 地实时传输监控信息。
因此， 本发明的基本思想是： 可视通信终端向视频监控前端发送监控 请求； 视频监控前端收到监控请求后， 向可视通信终端发送监控信息。 可 视通信终端收到监控信息后， 可以在本地显示， 也可以发送给可视通信系 统的远端可视通信终端。 本发明中的可视通信终端既具有解码功能以便进 行本地显示， 又具有编码功能以便发给远端的可视通信终端。 所述监控信 息为由视频监控前端得到的与监控相关的内容， 如监控图像。 具体地， 可视通信终端启动并搜索到网络上的视频监控前端后， 可视 通信终端向视频监控前端发送监控请求， 视频监控前端向可视通信终端返 回媒体描述信息， 可视通信终端向视频监控前端发送获取监控信息的媒体 流请求及开始播放请求， 视频监控前端向可视通信终端发送媒体数据， 该 媒体数据即为视频监控前端通过监控得到的监控信息； 可视通信终端将接 收到的媒体数据进行解码后在本地进行显示、 或发送给可视通信系统的远 端可视通信终端。
图 1为本发明中可视通信与视频监控相融合的系统组成示意图，如图 1 所示， 本发明实现可视通信与视频监控相融合的系统包括： 可视通信终端
11和视频监控前端 12; 其中， 可视通信终端 11用于向视频监控前端 12发 送监控请求， 接收视频监控前端 12发送的监控信息， 在本地显示或发送给 可视通信系统的远端可视通信终端， 可视通信终端 11既具有解码功能以便 进行本地显示， 又具有编码功能以便发给远端的可视通信终端； 视频监控 前端 12用于接收可视通信终端 11的监控请求， 向可视通信终端 11发送监 控信息。
另外， 在发现视频监控前端 12的过程中： 可视通信终端 11 , 用于发送 查询视频监控前端的组播报文， 接收视频监控前端 12返回的响应报文， 保 存视频监控前端 12的信息， 以便后续对视频监控前端 12进行选择和控制； 视频监控前端 12, 用于接收可视通信终端 11发送的组播报文， 采用单播方 式向可视通信终端 11返回响应报文， 该响应报文中包含表明视频监控前端 身份的参数。 或者， 视频监控前端 12 , 用于在自身启动后主动向可视通信 终端 11发送表明视频监控前端身份的组播报文； 可视通信终端 11 , 用于接 收视频监控前端 12发送的组播报文， 保存视频监控前端 12的信息， 以便 后续对视频监控前端 12进行选择和控制。
可视通信终端 11对视频监控前端 12进行控制的过程中： 可视通信终 端 11 , 用于向视频监控前端 12发送获取配置信息请求， 通过收到的视频监 控前端 12返回的获取配置信息响应获取视频监控前端 12的配置信息； 视 频监控前端 12, 用于接收可视通信终端 11发送的获取配置信息请求， 向可 视通信终端 11返回获取配置信息响应， 该获取配置信息响应中包含视频监 控前端 12的配置信息。 可视通信终端 11收到视频监控前端 12的配置信息 后， 可进一步用于根据用户的输入修改视频监控前端 12的配置信息， 向视 频监控前端 12发送设置配置信息请求， 该设置配置信息请求中包含修改后 的配置信息， 接收视频监控前端 12返回的设置配置信息响应； 相应地， 视 频监控前端 12,进一步用于接收可视通信终端 11发送的设置配置信息请求， 保存收到的配置信息并设置为生效， 向可视通信终端 11返回设置配置信息 响应。
可视通信终端 11还可用于与视频监控前端 12交互出接收监控信息的 端口。
可视通信终端 11具有会话启动协议 ( SIP, Session Initiation Protocol ) 终端或者 H.323视频会议终端的功能。 可视通信终端 11既包括硬件终端也 包括软件终端。 可视通信终端 11的输入视频源既可以是与其直接连接的摄 像头， 也可以是网络上视频监控前端 12传过来的视频， 其实现既可以在现 有可视通信终端上进行开发， 又可以开发出全新的可视通信终端。
可视通信终端 11和视频监控前端 12主要有三种连接方式： 第一种， 通过局域网 （LAN, Local Area Network )方式连接； 第二种， 通过无线网 络连接； 第三种， 通过 RS232等串口连接。
根据以上描述可见， 可视通信终端 11与视频监控前端 12之间一共有 三类信息需要传递。
第一类信息是控制信令， 如设置配置信息请求， 主要实现可视通信终 端 11对视频监控前端 12的视频参数的设置以及对视频监控前端 12的摄像 头的控制。 其中， 视频参数的设置信息包括： 亮度、 色度、 饱和度、 对比 度以及视频格式、 视频码率、 及视频帧率等参数。 对摄像头的控制包括对 摄像头上、 下、 左、 右进行转动的设置， 以及对光圈和焦距的设置。 控制 信令的接口可以通过制定私有协议接口来实现； 也可以在可视通信终端 11 上通过支持浏览器的方式直接与视频监控前端 12 上的网络服务器 ( WEBSERVER )进行通信。私有协议接口指的是采用传输控制协议（ TCP, Transmission Control Protocol )或者用户数据才艮协议 ( UDP, User Datagram Protocol )传递控制信令， 根据需要制定控制信令的参数及格式。 参数一般 包括消息类型和消息体。 其中， 消息类型包括： 视频参数设置、 编码参数 设置、 摄像头控制等。 消息体是指每种消息类型所包含的具体内容， 例如： 视频参数设置类型对应的消息体是亮度、 色度、 饱和度和对比度。
可视通信终端 11与视频监控前端 12通过私有协议接口进行通信， 主 要是为了实现两者的控制信令的传递功能。 如果视频监控前端 12 支持 WEBSERVER的话，则二者之间可以通过超文本传输协议（ HTTP, Hypertext Transfer Protocol )进行通信， 可以在可视通信终端 11上内嵌 WEB浏览器， 相当于用户直接在视频监控前端 12上进行控制。
第二类信息是媒体控制信令， 主要是可视通信终端 11获取视频监控前 端 12编码后的监控信息（包括视频和音频数据）。 可视通信终端 11获取到 媒体数据、 即监控信息后， 可以显示在本地或者将该监控信息作为本地的 一个视频源传给远端的可视通信终端显示。 媒体控制信令的接口可以通过 制定私有协议接口来实现； 也可以在可视通信终端 11上通过实时流传输协 议 ( RTSP, Real Time Streaming Protocol )点播的方式直接获取视频监控前 端 12的媒体数据。 私有协议接口指的是通过 TCP或者 UDP传递媒体控制 信令， 根据需要制定控制信令的参数及格式， 参数内容包括媒体类型、 编 码参数、 接收媒体数据的地址和端口。 可视通信终端 11 与视频监控前端 12 之间交互的媒体控制信令通过 RTSP或者私有协议接口进行传输， 主要是为了后续可视通信终端 11获取 视频监控前端 12的媒体数据。如果采用 RTSP,可视通信终端 11作为 RTSP 的客户端， 视频监控前端 12作为 RTSP的服务端。
第三类信息是媒体数据， 可视通信终端 11与视频监控前端 12传递的 媒体数据是通过标准的实时传送协议 ( RTP, Real-time Transport Protocol ) 来传送的。
关于可视通信终端对视频监控前端的选择， 有两种实现方式： 一种是 在可视通信终端上直接配置好需要连接的视频监控前端， 例如： 配置视频 监控前端的 IP地址和端口号； 另外一种是通过制定私有协议接口或者通用 即插即用 （UPnP, Universal Plug and Play )接口来实现， 由可视通信终端 作为控制点设备， 视频监控前端作为受控点设备， 从而达到可视通信终端 自动发现视频监控前端的目的。私有协议接口可以基于 TCP或者 UDP传送 消息。
图 2 为本发明中可视通信终端自动发现视频监控前端的流程示意图， 可视通信终端自动发现视频监控前端的具体步驟如图 2所示：
步驟 201 : 可视通信终端发送查询视频监控前端的组播 4艮文。
步驟 202: 视频监控前端收到可视通信终端发送的组播报文后， 采用单 播方式向可视通信终端返回响应报文， 该响应报文中包含用来表明视频监 控前端身份的参数。
步驟 203: 可视通信终端收到响应报文后， 保存视频监控前端的信息， 以便后续进行选择和控制。
另外， 视频监控前端也可在自身启动后， 主动向可视通信终端发送组 播报文， 该组播报文中包含用来表明视频监控前端身份的参数； 可视通信 终端收到视频监控前端发送的组播报文后， 保存视频监控前端的信息。 如果可视通信终端自动发现多个视频监控前端， 可以同时将发现的视 频监控前端进行保存， 具体选择哪个， 用户可以在可视通信终端上自行设 置。
图 3为本发明中可视通信终端对视频监控前端进行控制的流程示意图， 具体步驟如图 3所示：
步驟 301：用户在可视通信终端上选择一个已发现的视频监控前端进行 控制。
步驟 302: 可视通信终端向视频监控前端发送获取配置信息请求， 以获 取对应视频监控前端的配置信息。
步驟 303: 视频监控前端收到获取配置信息请求后， 向可视通信终端发 送获取配置信息响应， 该获取配置信息响应中包含视频监控前端的配置信 步驟 304: 可视通信终端收到获取配置信息响应后， 显示获取配置信息 响应中包含的视频监控前端的配置信息， 并可以由用户通过输入进行修改。
步驟 305: 用户完成修改后， 可视通信终端向视频监控前端发送设置配 置信息请求， 该设置配置信息请求中包含修改后的配置信息， 要求视频监 控前端修改配置信息。
步驟 306: 视频监控前端收到设置配置信息请求后，保存收到的配置信 息并设置为生效， 向可视通信终端发送设置配置信息响应， 通知可视通信 终端配置成功。
图 4为本发明中可视通信终端获取视频监控前端的媒体数据的流程示 意图， 具体步驟如图 4所示：
步驟 401 : 可视通信终端作为 RTSP客户端向视频监控前端发送监控请 求， 如 RTSP DESCRIBE请求。
步驟 402: 视频监控前端收到视频监控请求后， 向可视通信终端发送 媒体描述信息， 媒体描述信息可包含在媒体监控响应、 如 RTSP DESCRIBE 响应中， 媒体描述信息可以为视频和音频数据的格式、 端口等。
视频对应有一个端口， 音频对应有一个端口。
步驟 403: 可视通信终端收到媒体描述信息后， 向视频监控前端发送获 取媒体流请求， 要求视频监控前端提供监控信息， 该获取媒体流请求可以 为 RTSP SETUP请求。
步驟 404: 视频监控前端收到获取媒体流请求后， 向可视通信终端发送 获取媒体流响应、 如 RTSP SETUP响应。
步驟 405: 可视通信终端收到获取媒体响应后， 向视频监控前端发送开 始播放请求 , 该开始播放请求可以为 RTSP PLAY请求。
步驟 406: 视频监控前端收到开始播放请求后， 向可视通信终端发送播 放请求响应、 如 RTSP PLAY响应。
步驟 407: 视频监控前端发送播放请求响应后， 向可视通信终端发送媒 体流， 以实现监控信息的实时传输， 媒体流可以基于 RTP来发送。
可视通信终端收到视频监控前端发送的媒体流后， 将媒体流进行解码， 就可以将媒体数据显示在本地； 也可以通过视频呼叫远端可视通信终端， 将收到的媒体流发送给远端可视通信终端进行显示。 解码是指调用视频监 控前端中对应于该媒体数据的解码库， 来进行解码。
下面结合一个实例对本发明中可视通信与视频监控相融合的方法再作 进一步详细的说明。
步驟 501 :可视通信终端启动后通过自动发现找到网络上的视频监控前 端。
可视通信终端发送查询视频监控前端的组播报文。 视频监控前端收到 组播报文后， 采用单播方式向可视通信终端返回响应报文， 该响应报文中 包含用来表明视频监控前端身份的参数。 可视通信终端收到响应报文后， 将其保存起来以便对视频监控前端进行选择和控制。
步驟 502:用户在可视通信终端上选择一个已发现的视频监控前端作为 可视通信终端的视频输入源。
步驟 503 :可视通信终端向用户所选的视频监控前端发送获取配置信息 请求的控制信令， 以便显示视频监控前端的配置信息， 进而方便用户进行 配置。
可视通信终端向视频监控前端发送获取配置信息请求。 视频监控前端 收到获取配置信息请求后， 向可视通信终端发送获取配置信息响应， 该获 取配置信息响应中包含视频监控前端的配置信息。 可视通信终端收到获取 配置信息响应后， 显示获取配置信息响应中包含的视频监控前端的配置信 息， 并让用户进行修改。 用户在可视通信终端上通过输入完成修改后， 可 视通信终端向视频监控前端发送设置配置信息请求， 该设置配置信息请求 中包含修改后的配置信息。 视频监控前端收到设置配置信息请求后， 将收 到的配置信息保存并设置为生效， 向可视通信终端发送设置配置信息响应。
步驟 504:可视通信终端向视频监控前端发送表示监控请求的媒体控制 信令。
步驟 505: 视频监控前端收到媒体控制信令后， 向可视通信终端发送媒 体描述信息， 媒体描述信息可包含在媒体监控响应中。
步驟 506: 可视通信终端收到媒体描述信息后，根据媒体描述信息与视 频监控前端交互出接收媒体流的端口， 然后向视频监控前端发送获取媒体 流请求。
如果是音频数据， 对应的是音频数据的端口， 如果是视频数据， 对应 的是视频数据的端口。
步驟 507: 视频监控前端收到获取媒体流请求后， 基于 RTP向可视通 信终端发送媒体流。 步驟 508: 可视通信终端收到视频监控前端发送的媒体流后， 将媒体流 进行解码， 就可以在本地显示； 另外， 也可以向可视通信系统中远端可视 通信终端进行视频呼叫， 将视频监控前端发送的媒体流经过重新编码发给 远端可视通信终端进行显示。
以上所述的媒体流包括音频流和 /或视频流。
以上所述， 仅为本发明的较佳实施例而已， 并非用于限定本发明的保 护范围。

Claims

权利要求书
1、 一种监控信息传输的系统， 其特征在于， 该系统包括：
可视通信终端， 用于向视频监控前端发送监控请求， 接收视频监控前 端发送的监控信息， 在本地显示或发送给可视通信系统的远端可视通信终 端， 所述可视通信终端既具有解码功能以进行本地显示， 又具有编码功能 以发给远端的可视通信终端；
视频监控前端， 用于接收可视通信终端的监控请求， 向可视通信终端 发送监控信息。
2、 根据权利要求 1所述的系统， 其特征在于，
所述可视通信终端， 还用于发送查询视频监控前端的组播报文， 接收 视频监控前端返回的响应 4艮文， 保存视频监控前端的信息；
所述视频监控前端， 还用于接收可视通信终端发送的组播报文， 向可 视通信终端返回响应报文， 该响应报文中包含表明视频监控前端身份的参 数。
3、 根据权利要求 1所述的系统， 其特征在于，
所述视频监控前端， 还用于在自身启动后主动向可视通信终端发送表 明视频监控前端身份的组播报文；
所述可视通信终端， 还用于接收视频监控前端发送的组播报文， 保存 视频监控前端的信息。
4、 根据权利要求 1至 3任一所述的系统， 其特征在于，
所述可视通信终端， 还用于向视频监控前端发送获取配置信息请求， 通过视频监控前端返回的获取配置信息响应获取视频监控前端的配置信 所述视频监控前端， 还用于接收可视通信终端发送的获取配置信息请 求， 向可视通信终端返回获取配置信息响应， 该获取配置信息响应中包含 视频监控前端的配置信息。
5、 根据权利要求 4所述的系统， 其特征在于，
所述可视通信终端收到所述配置信息后， 进一步用于根据用户的输入 修改视频监控前端的配置信息， 向视频监控前端发送设置配置信息请求， 该设置配置信息请求中包含修改后的配置信息；
所述视频监控前端， 进一步用于接收可视通信终端发送的设置配置信 息请求， 保存收到的配置信息并设置为生效。
6、 一种监控信息传输的方法， 其特征在于， 该方法包括：
可视通信终端向视频监控前端发送监控请求；
视频监控前端收到监控请求后， 向可视通信终端发送监控信息； 可视通信终端显示收到的监控信息和 /或发送给可视通信系统的远端可 视通信终端， 所述可视通信终端既具有解码功能以进行本地显示， 又具有 编码功能以发给远端的可视通信终端。
7、根据权利要求 6所述的方法， 其特征在于， 所述发送监控请求之前， 进一步包括：
可视通信终端发送查询视频监控前端的组播报文；
视频监控前端收到所述组播报文后， 向可视通信终端返回响应报文， 该响应报文中包含用来表明视频监控前端身份的参数；
可视通信终端收到响应报文后， 保存视频监控前端的信息。
8、根据权利要求 6所述的方法，其特征在于， 所述发送监控请求之前， 进一步包括：
视频监控前端在自身启动后， 主动向可视通信终端发送组播报文， 该 组播报文中包含用来表明视频监控前端身份的参数；
可视通信终端收到所述组播报文后， 保存视频监控前端的信息。
9、根据权利要求 6至 8任一所述的方法， 其特征在于， 该方法还包括： 可视通信终端向视频监控前端发送获取配置信息请求；
视频监控前端收到获取配置信息请求后， 向可视通信终端发送获取配 置信息响应， 该获取配置信息响应中包含视频监控前端的配置信息；
可视通信终端收到获取配置信息响应后， 显示获取配置信息响应中包 含的视频监控前端的配置信息。
10、 根据权利要求 9所述的方法， 其特征在于， 所述显示配置信息之 后， 进一步包括：
可视通信终端向视频监控前端发送设置配置信息请求， 该设置配置信 息请求中包含修改后的配置信息；
视频监控前端收到设置配置信息请求后， 保存收到的配置信息并设置 为生效。
PCT/CN2010/074175 2009-08-26 2010-06-21 一种监控信息传输的方法及系统 WO2011023024A1 (zh)

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