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CN102891980B - Route allocation method of satellite IP (Internet Protocol) video conference system - Google Patents

Route allocation method of satellite IP (Internet Protocol) video conference system Download PDF

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CN102891980B
CN102891980B CN201210430937.3A CN201210430937A CN102891980B CN 102891980 B CN102891980 B CN 102891980B CN 201210430937 A CN201210430937 A CN 201210430937A CN 102891980 B CN102891980 B CN 102891980B
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port
central station
modulator
demodulator
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CN102891980A (en
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彭华
张亚生
白海斌
李成
董飞虎
章伟
吴欣
高佩
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CETC 54 Research Institute
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Abstract

本发明公开了一种卫星IP视频会议系统的路由配置方法，它涉及卫星通信技术领域。本发明通过pim？dm协议与igmp协议的配合使用实现从中心站到远端站的组播传输，通过在远端站路由器端口配置主、从两个IP地址实现了基于单个调制解调器的视频组播接收与视频回传。本发明公开的方法既实现了从中心站到远端站的视频组播，又支持从远端站到中心站进行视频回传，具有节约带宽、配置简单的优点，特别适合组建视频会议的卫星通信系统使用。

The invention discloses a routing configuration method of a satellite IP video conferencing system, which relates to the technical field of satellite communication. The invention through pim? The combination of dm protocol and igmp protocol realizes the multicast transmission from the central station to the remote station, and realizes video multicast reception and video return based on a single modem by configuring master and slave IP addresses on the router port of the remote station . The method disclosed in the present invention not only realizes the video multicast from the central station to the remote station, but also supports the video backhaul from the remote station to the central station, has the advantages of saving bandwidth and simple configuration, and is especially suitable for establishing a video conference satellite communication system use.

Description

一种卫星IP视频会议系统的路由配置方法A routing configuration method for a satellite IP video conferencing system

技术领域technical field

本发明公开了一种卫星IP视频会议系统的路由配置方法，它涉及卫星通信技术领域。特别适合组建视频会议的卫星通信系统使用。The invention discloses a routing configuration method of a satellite IP video conferencing system, which relates to the technical field of satellite communication. It is especially suitable for use in satellite communication systems for video conferencing.

背景技术Background technique

卫星通信有着覆盖范围广、广播能力强、受地域条件限制少的优点。卫星网络作为地面网络的补充和备份已经受到了国内外的广泛关注，利用卫星网络组建视频会议的应用也越来越普遍。Satellite communication has the advantages of wide coverage, strong broadcasting capability, and less restricted by geographical conditions. As the supplement and backup of the terrestrial network, the satellite network has received extensive attention at home and abroad, and the application of using the satellite network to set up video conferencing is becoming more and more common.

一般的卫星IP视频会议系统在远端站配备视频会议终端，在中心站配备视频会议终端和多点控制单元，组建会议时，每个远端站都与中心站建立双向点对点链路进行视频传输，通过中心站的多点控制单元进行会议图像切换控制。由于每个远端站都需要和中心站建立一对双向链路，这种方式十分浪费宝贵的卫星带宽资源，也未能充分发挥卫星的广播优势。A general satellite IP video conferencing system is equipped with a video conferencing terminal at the remote station, and a video conferencing terminal and a multi-point control unit at the central station. When setting up a conference, each remote station establishes a two-way point-to-point link with the central station for video transmission , through the multi-point control unit of the central station to control the switching of conference images. Since each remote station needs to establish a pair of two-way links with the central station, this method wastes precious satellite bandwidth resources and fails to give full play to the broadcasting advantages of satellites.

发明内容Contents of the invention

本发明所要解决的技术问题是提供一种既支持从中心站到远端站进行视频组播传输，又支持从远端站到中心站进行视频回传的卫星IP视频会议系统的路由配置方法，涉及卫星通信技术领域。本发明通过pim dm协议与igmp协议的配合使用实现从中心站到远端站的组播传输，通过在远端站路由器端口配置主、从两个IP地址实现了基于单个调制解调器的视频组播接收与视频回传。The technical problem to be solved by the present invention is to provide a routing configuration method for a satellite IP video conferencing system that not only supports video multicast transmission from the central station to the remote station, but also supports video return transmission from the remote station to the central station. Involved in the field of satellite communication technology. The present invention realizes the multicast transmission from the central station to the remote station through the cooperative use of the pim dm protocol and the igmp protocol, and realizes video multicast reception based on a single modem by configuring master and slave IP addresses on the router port of the remote station with video postback.

本发明的目的是这样实现的，一种卫星IP视频会议系统的路由配置方法，包括步骤：The object of the present invention is achieved like this, a kind of routing configuration method of satellite IP video conferencing system, comprises steps:

(1)选择中心站的一台调制解调器作为视频组播发送调制解调器，设置其发送载波中心频率和发送速率，并打开载波发送开关；(1) Select a modem at the central station as the video multicast sending modem, set its sending carrier center frequency and sending rate, and turn on the carrier sending switch;

在中心站路由器与视频组播发送调制解调器相连的端口上配置一个IP地址，并在本端口启动pim dm组播路由协议，而后启用igmp协议将该端口加入目的组播地址组；Configure an IP address on the port where the central station router is connected to the video multicast sending modem, and start the pim dm multicast routing protocol on this port, and then enable the igmp protocol to add the port to the destination multicast address group;

(2)设置所有远端站调制解调器的接收载波中心频率和接收速率与中心站视频组播发送调制解调器的发送载波中心频率和发送速率相等；(2) the receiving carrier center frequency and the receiving rate of all remote station modems are set to be equal to the sending carrier center frequency and sending rate of the central station video multicast sending modem;

在所有远端站路由器与调制解调器相连的端口上配置一个与中心站路由器视频组播发送端口IP地址处于同一网段的主IP地址，并启动pim dm组播路由协议，而后在远端站路由器上添加一条目的子网为中心站所在子网、下一跳端口为与调制解调器相连的端口的静态路由；Configure a primary IP address on the same network segment as the IP address of the video multicast sending port of the central station router on the ports connected to the modems of all remote station routers, and start the pim dm multicast routing protocol, and then on the remote station router Add a static route whose subnet is the subnet where the central station is located, and whose next hop port is the port connected to the modem;

(3)设置某个需要进行视频回传的远端站调制解调器的发送载波中心频率和发送速率，并开启载波；(3) Set the sending carrier center frequency and sending rate of a remote station modem that needs video backhaul, and turn on the carrier;

在该远端站路由器与调制解调器相连的端口上配置一个从IP地址；Configure a secondary IP address on the port connected to the modem on the remote station router;

(4)选择中心站除视频组播发送调制解调器外的任意一台调制解调器作为回传视频接收调制解调器，并设置该调制解调器的接收载波中心频率和接收速率与进行视频回传的远端站调制解调器的发送载波中心频率和发送速率相等；(4) Select any modem in the central station except the video multicast sending modem as the return video receiving modem, and set the receiving carrier center frequency and receiving rate of the modem and the sending carrier of the remote station modem for video return The center frequency is equal to the sending rate;

在中心站路由器与回传视频接收调制解调器相连的端口上配置一个IP地址，该IP地址与进行视频回传的远端站路由器端口上的从IP地址处于同一网段；Configure an IP address on the port connecting the central station router to the return video receiving modem, which is in the same network segment as the slave IP address on the remote station router port for video return;

(5)如果需要其它远端站向中心站回传视频，则重复步骤(3)、(4)，对其它需要进行视频回传的远端站以及中心站对应端口进行配置；(5) If other remote stations need to transmit video back to the central station, repeat steps (3) and (4) to configure the corresponding ports of other remote stations that need video return and the central station;

完成卫星IP视频会议系统的路由配置。Complete the routing configuration of the satellite IP video conferencing system.

本发明具有以下优点：The present invention has the following advantages:

本发明公开的方法既实现了从中心站到远端站的视频组播，又支持从远端站到中心站进行视频回传，具有节约带宽、配置简单的优点，特别适合组建视频会议的卫星通信系统使用。The method disclosed in the present invention not only realizes the video multicast from the central station to the remote station, but also supports the video return transmission from the remote station to the central station, has the advantages of saving bandwidth and simple configuration, and is especially suitable for satellites for video conferencing communication system use.

附图说明Description of drawings

图1是本发明实施例示意图。Fig. 1 is a schematic diagram of an embodiment of the present invention.

图2是本发明基本流程图。Fig. 2 is a basic flow chart of the present invention.

具体实施方式Detailed ways

如图1和图2所示，卫星IP视频会议系统包括一个中心站和若干个远端站，中心站有若干台调制解调器，每台调制解调器都与中心站路由器的一个端口相连，每个远端站配有一台调制解调器，与远端站路由器的一个端口相连，远端站内配有IP视频会议终端，中心站内配有IP视频会议终端和多点控制单元。As shown in Figure 1 and Figure 2, the satellite IP video conferencing system includes a central station and several remote stations. The central station has several modems, and each modem is connected to a port of the central station router. Each remote station Equipped with a modem, connected to a port of the remote station router, the remote station is equipped with an IP video conferencing terminal, and the central station is equipped with an IP video conferencing terminal and a multi-point control unit.

一种卫星IP视频会议系统的路由配置方法，包括以下步骤：A routing configuration method for a satellite IP video conferencing system, comprising the following steps:

(1)选择中心站的一台调制解调器作为视频组播发送调制解调器，设置其发送载波中心频率和发送速率，并打开载波发送开关；(1) Select a modem at the central station as the video multicast sending modem, set its sending carrier center frequency and sending rate, and turn on the carrier sending switch;

在中心站路由器与视频组播发送调制解调器相连的端口上配置一个IP地址，并在本端口启动pim dm组播路由协议，而后启用igmp协议将该端口加入目的组播地址组；Configure an IP address on the port where the central station router is connected to the video multicast sending modem, and start the pim dm multicast routing protocol on this port, and then enable the igmp protocol to add the port to the destination multicast address group;

(2)设置所有远端站调制解调器的接收载波中心频率和接收速率与中心站视频组播发送调制解调器的发送载波中心频率和发送速率相等；(2) the receiving carrier center frequency and the receiving rate of all remote station modems are set to be equal to the sending carrier center frequency and sending rate of the central station video multicast sending modem;

在所有远端站路由器与调制解调器相连的端口上配置一个与中心站路由器视频组播发送端口IP地址处于同一网段的主IP地址，并启动pim dm组播路由协议，而后在远端站路由器上添加一条目的子网为中心站所在子网、下一跳端口为与调制解调器相连的端口的静态路由；Configure a primary IP address on the same network segment as the IP address of the video multicast sending port of the central station router on the ports connected to the modems of all remote station routers, and start the pim dm multicast routing protocol, and then on the remote station router Add a static route whose subnet is the subnet where the central station is located and whose next hop port is the port connected to the modem;

(3)设置某个需要进行视频回传的远端站调制解调器的发送载波中心频率和发送速率，并开启载波；(3) Set the sending carrier center frequency and sending rate of a certain remote station modem that needs video backhaul, and turn on the carrier;

在该远端站路由器与调制解调器相连的端口上配置一个从IP地址；Configure a secondary IP address on the port connected to the modem on the remote station router;

(4)选择中心站除视频组播发送调制解调器外的任意一台调制解调器作为回传视频接收调制解调器，并设置该调制解调器的接收载波中心频率和接收速率与进行视频回传的远端站调制解调器的发送载波中心频率和发送速率相等；(4) Select any modem in the central station except the video multicast sending modem as the return video receiving modem, and set the receiving carrier center frequency and receiving rate of the modem and the sending carrier of the remote station modem for video return The center frequency is equal to the sending rate;

在中心站路由器与回传视频接收调制解调器相连的端口上配置一个IP地址，该IP地址与进行视频回传的远端站路由器端口上的从IP地址处于同一网段；Configure an IP address on the port connecting the central station router to the return video receiving modem, which is in the same network segment as the slave IP address on the remote station router port for video return;

(5)如果需要其它远端站向中心站回传视频，则重复步骤(3)、(4)，对其它需要进行视频回传的远端站以及中心站对应端口进行配置；(5) If other remote stations need to transmit video back to the central station, repeat steps (3) and (4) to configure the corresponding ports of other remote stations that need video return and the central station;

完成卫星IP视频会议系统的路由配置。Complete the routing configuration of the satellite IP video conferencing system.

Claims (1)

1. a method for configuring route for satellite IP video conferencing system, is characterized in that comprising step:
(1) select a modulator-demodulator of central station as video multicast sending modem, it is set and sends centre carrier frequency and transmission rate, and open carrier wave transmit button;
The port that central station router is connected with video multicast sending modem configures an IP address, and starts pim dm multicast routing protocol at the port, then enable igmp agreement and this port is added object multicast address group;
(2) the reception carrier centre frequency and the receiving velocity that arrange all remote terminal modulator-demodulators are equal with transmission rate with the transmission centre carrier frequency of central station video multicast sending modem;
The port that all remote terminal routers are connected with modulator-demodulator configures one and is in the primary ip address of the same network segment with central station video router multicast transmit port IP address, and starting pim dm multicast routing protocol, place subnet of standing centered by the subnet then adding an entry on remote terminal router, down hop port are the static routing of the port be connected with modulator-demodulator;
(3) certain the transmission centre carrier frequency needing to carry out the remote terminal modulator-demodulator of video passback and transmission rate are set, and open carrier wave;
The port that this remote terminal router is connected with modulator-demodulator configures a secondary IP address;
(4) select any modulator-demodulator of central station except video multicast sending modem as passback video reception modulator-demodulator, and the reception carrier centre frequency arranging this modulator-demodulator is equal with transmission rate with the transmission centre carrier frequency of the remote terminal modulator-demodulator carrying out video passback with receiving velocity;
The port that central station router is connected with passback video reception modulator-demodulator configures an IP address, and this IP address and the secondary IP address carried out on the remote terminal router port of video passback are in the same network segment;
(5) if need other remote terminal to return video to central station, then repeat step (3), (4), other is needed to carry out the remote terminal of video passback and central station corresponding ports is configured;
Complete the routing configuration of satellite IP video conferencing system.
CN201210430937.3A 2012-11-01 2012-11-01 Route allocation method of satellite IP (Internet Protocol) video conference system Expired - Fee Related CN102891980B (en)

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CN106713820B (en) * 2016-11-29 2020-02-07 苏州科达特种视讯有限公司 Broadcast frequency switching method and device for satellite video conference
CN111555983B (en) * 2020-03-26 2023-03-24 航天恒星科技有限公司 Heaven and earth-oriented multicast data transmission method and device
CN114944861B (en) * 2022-04-08 2024-11-08 亚太卫星宽带通信（深圳）有限公司 A multicast baseband configuration system and method

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