Views: 11 Author: Site Editor Publish Time: 2020-03-25 Origin: Site
Emergency command agencies usually cannot use public network communications for security reasons. Even if a public network is selected, public network communications that were originally available may become unavailable due to disasters and other reasons, and cannot be planned and accurately predicted in advance, which brings great challenges to the continuity of command. Therefore, in the case of emergency, such as fire, earthquake, typhoon, underground rescue and other public network communications are cut off, a complete communication solution is also needed. This led to three major problems in emergency communications: first, public network congestion, paralysis, and blind spots; second, traffic interruption; and third, power interruption. Therefore, in an emergency, it is difficult for emergency departments to fully support their communications through the public network when a disaster occurs.
For the emergency rescue command, the highest goal of communication is to ensure the unimpeded visual command of the scene even if all public networks and satellites fail. To this end, we have divided two regional concepts: first, the disaster area is a radius (such as 50 kilometers) as the core area; second, the disaster center is a radius (such as 100 kilometers) as a warning area. Once the rescue team arrives at the peripheral alert assembly point, communications will be uniformly controlled by the communications system determined by the core area command.
Why can't the public network be used at the emergency command site, but an emergency communication private network is needed? Because the mobile public network is characterized by inclusive services, best-effort services, personal communications, and downlink demand is far greater than uplink. When an emergency situation is encountered, the operator's base station may be damaged, and a large number of users access the same base station, resulting in partial congestion of the network congestion and signal dead zones. The characteristics of emergency communications are specialized services, guaranteed services, trunking communications, and uplink demand exceeding downlink. The current feature is that the signal covers a dedicated private network and requires a professional terminal. However, the worse the environment is, the more urgent the emergency communication network is. Therefore, it is obviously impossible to transfer the public network mode to emergency communication.
In order to solve the base station problem of emergency communication, there are usually two methods. First, through macro station coverage, and second, through mobile vehicle base stations. However, for the first-line rescue team, it is obviously inconvenient to use large macro stations, and due to financial and manpower difficulties, there are also many bottlenecks in vehicle-mounted mobile base stations. For rescue teams that go deep into the front line, it is more suitable to use a portable emergency communication base station. In response to the pain points of emergency communications, IFLY has launched a 4G LTE Portable Emergency Command System for first-line rescue teams. The system is equipped with a unit for individual soldiers, integrating RRU, BBU, core network, and dispatcher.
IFLY knapsack integrated communication command system is used in rescue operations. Through five methods of high point station, drone, water floating platform, vehicle base station, and single soldier carrying, it can well solve the problems of cities, mountains, sea waters, and the wild. There are no network, no road, no power, and no networking issues. In the future, IFLY will continue to perform performance and application innovations around customer needs to make the application of the entire system wider.
With the IFLY knapsack integrated communication and command system, when disasters and emergencies come, emergency departments can solve the pain of emergency command and front-line combat communications, truly promote emergency command to be visualized and intelligent, and better protect the safety of the people.