In case of danger, the drone will come to the rescue.

In case of danger, the drone will come to the rescue.

Once a fire breaks out in a high-rise building, it is easy to cause serious casualties. The main reason is that people cannot evacuate. If the lower building catches fire, the evacuation route of survivors will be cut off, and then the trapped people will suffocate in the growing fire, or jump off a building and die. Although the fire department has rescue equipment such as ladders, this equipment can only reach the height of 15 floor, and its deployment speed is slow, so it can't compete with Vulcan.

So there is no better and faster way to rescue people trapped in high-rise fires? The rapidly emerging micro UAV technology can be used as an effective reference. At present, various micro low-cost UAVs are developing rapidly. In addition to the well-known photography function, drones are also used to perform tasks such as spraying pesticides and public security patrols. Some foreign organizations even directly use domestic micro drones to carry out bombing missions with small bombs. China electric power department is more imaginative: when carrying out the stringing task, let the micro unmanned aerial vehicle directly drag the fine sub-wires to the tower, and then use the sub-wires to drag the heavy metal wires to the tower!

Following the above ideas, we can also try to use drones to perform some dangerous rescue tasks. Specific to high-rise fire rescue missions, drones can be used to transport protective equipment and escape equipment to trapped people. Let's talk about the plan of using drones to provide protective equipment for trapped people. Harmful gases do the most harm to people trapped in the fire. For people without any protection, they will lose consciousness after 5 minutes of exposure to harmful gases. But if equipped with some basic protective equipment (such as wet towels and masks), it can survive in harmful gas environment 15-20 minutes. Therefore, if the drone can send relevant protective equipment to the trapped people soon after the fire, it will greatly extend the resistance time of the trapped people and win valuable time for the ground firefighters' next rescue measures. At present, the load of micro quadrotor UAV can reach 2-3 kg, so it is not a problem to install some wet towels and wet masks. For the larger 6-rotor and 8-rotor UAVs with a load of about 10kg, you can even send multiple gas masks and oxygen bags to the trapped people. Moreover, these drones are equipped with high-definition real-time cameras, which can deliver these protective equipment to the trapped people very accurately, and even fly into the room from the balcony or window to deliver the protective equipment to the trapped people.

Drones send protective escape equipment to people trapped in high-rise buildings. UAV transports protection and escape equipment for people trapped in high-rise buildings.

The drone can also put in life-saving equipment while putting in protective equipment. For those who have been cornered by the fire and almost jumped off the building, the escape rope and retarder that the drone put in time are the fastest means of escape. Trapped people can quickly slide to the ground along the escape rope with the help of a retarder as long as they tie the escape rope to a solid object in the building. The escape rope and descent control device are only suitable for use in very critical situations, because it is difficult for most people to adapt to sliding down from the sky with the escape rope from the psychological and technical point of view, especially those with heart disease and hypertension, and they can't slide down by themselves with the slide rope; In this case, it is necessary to use small single hanging basket for rescue. At present, construction workers will use a single hanging basket when working on the external wall of high-rise buildings. One end of the sling used for this hanging basket is tied to the top of the tall building, and the other end is tied to the electric winch of the hanging basket. The electric winch can lift the hanging basket by retracting the sling; The necessary modification of this single-person hanging basket can perform high-level rescue tasks: for example, covering the hanging basket with fireproof cloth can not only protect the people inside, but also prevent the rescued people from seeing acrophobia outside. At the same time, the hanging basket is changed to ground remote control operation, and firefighters can independently lift the hanging basket on the ground by remotely retracting the sling winch.

Unmanned aerial vehicle (UAV) sends life-saving basket auxiliary line to trapped people.

Some people may ask: how to hang the sling of a single hanging basket? Because only by hanging the sling can the hanging basket rise! To solve this problem, it is necessary to dispatch unmanned aircraft, that is, let unmanned aircraft fly to the trapped people with very thin first-class sub-line and walkie-talkie; If the floor is not very high, the trapped person can pull the thick sling by himself and find a firm place to fix it. If the floor is very high, the trapped person can tie the sub-line around a solid column (such as aluminum alloy window frame and balcony column) and throw it to the firefighters on the ground. Firefighters will use the winch to drive the auxiliary line to take the sling upstairs, and the trapped person will find a solid object to fix it, or bypass a solid post and throw it back to the ground. The firemen will fix the sling to the ground. When the sling is fastened, the fireman can automatically ascend to the trapped person through the remote control lifesaving basket, the ground fireman instructs the trapped person to enter the lifesaving basket safely through the visual intercom equipment, and then the ground fireman returns to the ground to rescue the trapped person by remote control lifesaving basket; For the old, the weak, the sick and the disabled, the firemen can be sent up by the hanging basket to help them land in the hanging basket first, and then the firemen can land after the hanging basket returns for the second time. In the meantime, if the fire expands, trained firefighters can use their own zip lines to quickly slide down the ground to escape.

Drones can be saviors in high-rise fires.

The idea of adding slings to the lead of this drone will continue to improve and achieve better results. For example, the roof is preset with a hanger that can carry about 1 ton, and a V-shaped rope catcher is set for automatic stringing of unmanned aerial vehicles. When a large number of people are trapped by a fire on the floor, the UAV can independently drag the sub-line to fly over the tower and be sent back to the ground by the V-rope catcher, and then the firefighters can use the sub-line to drag the sling to the tower and bring it back to the ground for fixing. At this time, firefighters can use a variety of large life-saving equipment to hang slings for rescue, such as using a large hanging basket that can carry more than ten people for rescue, or hanging a large flexible slide to the trapped people for everyone to slide down in turn. The use of these large-scale life-saving equipment will further enhance the rescue ability of high-rise buildings in case of fire.

The UAV can set up its own sling sub-line. The UAV can set up its own sling sub-line.

To sum up, when a fire breaks out in a high-rise building, the correct use of drones can have a very good rescue effect: putting protective equipment on drones can greatly reduce the casualties caused by toxic gases; It is undoubtedly good news for the majority of high-level officials to set up life-saving hanging baskets and other life-saving equipment through drones to rescue a large number of trapped people in time.