Shulou(Shulou.com)11/24 Report--

Nature has its own temper, whenever there is a major natural disaster, it needs to restore on-site communication as soon as possible, when emergency communication plays a vital role in the rescue.

Especially in the case of "three breaks" (power supply, transportation, communication interruption) after major earthquakes and disasters:

How to quickly open an emergency communication network and establish an emergency headquarters to assist leaders in decision-making?

How to ensure that the rescue team gets the disaster situation in the first place?

How to quickly resume public communication and transmit public rescue information in a timely manner?

How to ensure that the emergency equipment is stable and reliable at the same time, so as not to drop the chain at the critical moment?

Next, let the editor answer for you.

How difficult is emergency communication? In order to resume communication as soon as possible after a major natural disaster, you usually encounter the following difficulties:

The time and place cannot be determined: the incident is sudden and widespread, and there is usually no exact time and place.

Demand capacity is difficult to predict: when the emergency communication network has just returned to normal use, the user group is very large, it is difficult to predict how much business capacity can meet the actual demand.

The scene of the accident is extremely complex: due to the confusion of personnel at the scene, the terrain environment becomes more complex, such as the collapse caused by earthquake, flood and fire scene and so on.

In the face of complex disaster situations, what capabilities should emergency communications have?

What are the requirements for emergency communications? Emergency communication refers to the use of various channels to achieve smooth communication in case of emergency, so as to achieve the purpose of emergency rescue and security rescue. it is a temporary special communication mechanism.

At first glance, this aspect seems to be well solved, and the communication can be guaranteed by sending emergency communication vehicles, generators and backup batteries.

But the actual situation is far from as simple as imagined.

Emergency communications need to meet the following requirements:

Multiple backhaul capabilities: due to the complex situation in the affected area, emergency communication equipment needs to have a variety of backhaul capabilities, not only to support convenient wireless backhaul, but also to support private network or Internet backhaul.

Provide public network service: it is very likely that the communication of public network in the affected area has been interrupted, and the affected people and rescue workers also need to contact their relatives and friends far away, so they also need to provide a certain degree of public network service.

Ensure the quality of communication: rescue workers are in danger and need to have a forward-looking understanding of the situation ahead. Remote exploration by drones or robots is essential, and communication between rescue workers is also an effective means of mutual assistance. At this time, the field communication rate and real-time requirements are extremely high, which requires strong wireless access and local computing and backhaul capabilities.

We can clearly realize that when major natural disasters come, only relying on the existing emergency communication network is not enough, we need to constantly introduce and innovate the emergency communication system model, so as to improve the guarantee capability of emergency communication.

To this end, ZTE Corporation has launched the "Heaven and Earth Cooperative Emergency scenario solution", which flexibly uses existing resources and makes full use of the advantages of wireless networks in different emergency scenarios to achieve on-site communication guarantee for rapid recovery of disasters.

How does "Heaven and Earth Collaborative Emergency scenario solution" work? The solution of Tiandi collaborative emergency scenario fully takes into account the complex disaster situation, and develops a "trinity" solution according to different scenarios.

The vehicle can reach the nomadic base station for the scene where the vehicle is accessible, we can transport the nomadic base station through the vehicle and place it at the disaster site.

Nomadic base station is a major innovation in the field of 5G networking, which can provide 5G private network and public network services around the clock and "plug and play".

The advantages of nomadic base stations are mainly reflected in the following aspects:

Strong mobility: it can be quickly transferred and deployed in disaster-stricken areas through minivans or manual traction.

High integration: set 5G base station equipment, power equipment, transmission equipment, antenna, movable car body and lifting mast in one, high integration, can greatly reduce the complexity of on-site installation.

Convenient opening: without the need to set up antennas on site, you only need to access the optical fiber resources of the power supply lines and nearby base stations after arriving at the site, and you can complete the opening of the 5G network in a few minutes to facilitate rapid deployment on the site.

Flexible network deployment: smooth rise and fall of the mast, flexible and adjustable antenna, improving the quality of network coverage.

Nomadic base stations support a variety of backhaul modes, which can meet the needs of burst, emergency and 5G coverage deployment in private network or public network, and are widely used in random burst or flexible schedulable communication scenarios. It can be used not only in emergency rescue and disaster relief, but also in mobile exhibition halls, venues and so on.

The backpack base station is inaccessible to the vehicle, but can be reached by manpower. We can put backpack base stations in waterproof backpacks or custom suitcases to really achieve where we need to go.

RRU uses current commercial mature products, BBU products adopt current commercial mature products through structural optimization and heat dissipation design, and access to the local core network through satellite or local optical fiber.

The main features of the backpack base station solution are as follows:

Extremely compact, convenient transportation: the equipment is very simple, the volume is small, the weight is light, the transportation is convenient, and it is easy to reach the site where the vehicle is inaccessible.

Widely used, fast deployment: meet indoor and outdoor deployment, hanging or hoisting a variety of installation methods, suitable for different on-site environments, complete the opening of the site within 20 minutes.

Flexible networking and excellent performance: support multiple return modes of satellite and optical fiber, provide access to 4G&5G concurrent high-capacity 800users, and achieve 3km omni-directional coverage.

It is not convenient for manpower to reach tethered UAV. In the scene where manpower is inconvenient to reach, tethered UAV is needed.

What is a tethered drone?

The tethered UAV combines the UAV with the tethered integrated cable to transmit electric energy and signals through the cable, which can achieve 24-hour uninterrupted hovering in the air. It has the characteristics of long-time operation in the air and large bandwidth of data transmission.

All kinds of services are accessed through 5G terminal or CPE, and the tethered UAV can support the deployment of all kinds of emergency communication services.

The nomadic base station, the backpack base station and the tethered UAV are trinity to realize the cooperation between heaven and earth.

I believe that after reading this, you must have some understanding of the solution to the emergency scenario of heaven and earth cooperation.

Do you want to know more about nomadic base stations, backpack base stations, tethered drones?

This article comes from the official account of Wechat: ZTE documents (ID:ztedoc)

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