The future development direction of the emergency command system should be based on the public information network, which is based on the operator's network. In recent years, the success of 3G networks has led to the emergence of emergency communication equipment based on 3G networks. The information transmission range is farther, the popularity of the system is accelerating, and its low cost also makes grass-roots emergency work affordable. From the perspective of video transmission, although the video resolution of 3G equipment transmission is low and the delay is large, The problem of whether the image of the emergency command system has been uploaded has been solved, and vivid and real-time evidence materials have been provided for the emergency command work. With the establishment of more advanced and higher-speed wireless network systems such as 4G/LTE, the supporting platform for emergency commanding will be completely changed, the information volume will be greatly enriched, and the rapid processing capability of the emergency command system will be greatly improved.
In the emergency command system support platform, there is a satellite communication system. For example, the country has established a two-way emergency disaster preparedness emergency satellite system. China currently has weak satellite communication technology, high operating costs, high operating costs, and insufficient bandwidth, but With the continuous advancement of communication satellite technologies at home and abroad, the capacity of satellite communication systems will also be greatly increased. At present, some government departments in China do not have dedicated satellite ground stations, satellite ground station systems are also different, and communication network and compatibility are poor. In the future, these problems can be solved. For example, satellite communication channels generally have a bandwidth of only 1-2 M, and can transmit video conferences and standard definition video. However, to achieve high-definition video transmission, more than 4 Mbits of bandwidth is required. These bottlenecks will in future be accompanied by large-capacity communications. Satellites can be gradually resolved.
About the front-end information acquisition equipment, including wireless mobile video and digital trunking systems, will continue to develop with the continuous emergence of new technologies in the future, new channel modulation technologies, new video coding technologies, new computer network communication technologies, etc. And so on, will be applied to the emergency command system, the future of the emergency command system image and video information will achieve high-definition. In a word, the emergency command system is continuously improved and developed along with the technical progress of the support platform.
Through years of experience in emergency communications support, we have felt deeply that the national radio authority and other relevant departments should strengthen the management of emergency command system construction and ensure the safety and smoothness of the emergency command support system, especially the communication system.
In the emergency command system support platform, there is a satellite communication system. For example, the country has established a two-way emergency disaster preparedness emergency satellite system. China currently has weak satellite communication technology, high operating costs, high operating costs, and insufficient bandwidth, but With the continuous advancement of communication satellite technologies at home and abroad, the capacity of satellite communication systems will also be greatly increased. At present, some government departments in China do not have dedicated satellite ground stations, satellite ground station systems are also different, and communication network and compatibility are poor. In the future, these problems can be solved. For example, satellite communication channels generally have a bandwidth of only 1-2 M, and can transmit video conferences and standard definition video. However, to achieve high-definition video transmission, more than 4 Mbits of bandwidth is required. These bottlenecks will in future be accompanied by large-capacity communications. Satellites can be gradually resolved.
About the front-end information acquisition equipment, including wireless mobile video and digital trunking systems, will continue to develop with the continuous emergence of new technologies in the future, new channel modulation technologies, new video coding technologies, new computer network communication technologies, etc. And so on, will be applied to the emergency command system, the future of the emergency command system image and video information will achieve high-definition. In a word, the emergency command system is continuously improved and developed along with the technical progress of the support platform.
Through years of experience in emergency communications support, we have felt deeply that the national radio authority and other relevant departments should strengthen the management of emergency command system construction and ensure the safety and smoothness of the emergency command support system, especially the communication system.
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