Drones will come to the rescue when in danger
Once a fire breaks out in a high-rise building, it can easily cause serious casualties. The main reason is that people are not evacuated in time. If the building on the lower floor catches fire, the escape route of the escapees will be cut off. Later, in the intensifying fire, the trapped people will either be suffocated and burned to death, or they will fall to their death after jumping from the building. Although the fire department has rescue equipment such as aerial ladders, such equipment can only reach a maximum height of 15 floors, and its deployment speed is slow, making it impossible to compete with the Vulcan.
So is there no better or faster way to rescue people trapped in high-rise fires? The rapidly emerging micro-drone technology may serve as an effective reference. At present, various types of micro-low-cost drones are developing rapidly. In addition to their well-known photography functions, drones are also used to perform tasks such as spraying pesticides and patrolling security. Some organizations abroad even directly use Chinese-made micro-UAVs with small bombs attached to carry out bombing missions. The Chinese power sector is even more imaginative: when performing wiring tasks, they directly let micro drones drag thin sub-wires to fly to high towers, and then use the sub-wires to drag thick and heavy metal wires up the tower!
Following the above ideas, we can also try to use drones to perform some dangerous rescue missions. Specific to high-rise fire rescue missions, drones can be used to deliver protective equipment and escape equipment to trapped people. Let’s first talk about the plan of using drones to provide protective equipment to trapped people. The most harmful thing to trapped people in a fire is harmful gases. People without any protection will lose consciousness after being exposed to harmful gases for 5 minutes. However, if equipped with some basic protective equipment (such as wet towels and masks), it can survive in a harmful gas environment for 15-20 minutes. Therefore, if the drone can deliver relevant protective equipment to the trapped people soon after the fire breaks out, it will greatly extend the resistance time of the trapped people and buy valuable time for ground firefighters to take next rescue measures. Today's micro quadcopter drones can carry up to 2-3 kilograms, and it is not a problem to carry several wet towels and wet masks. For larger 6-rotor and 8-rotor drones with a load capacity of about 10 kilograms, multiple gas masks and oxygen bags can even be delivered to trapped persons. Moreover, these drones are equipped with high-definition real-time cameras, which can deliver these protective equipment to the trapped people very accurately, and can even fly indoors from balconies or windows to deliver protective equipment to trapped people.
Drones deliver protective and escape equipment to people trapped in high-rise buildings. Drones deliver protective and escape equipment to people trapped in high-rise buildings.
While delivering protective equipment, there is no need to Human-machine can also deliver life-saving equipment. For those who have been cornered by the fire and almost want to jump off the building, the escape rope and descent device delivered in time by the drone are the fastest means of escape. The trapped persons only need to tie the escape rope to a solid object in the building On the ground, you can use the descent device to quickly slide to the ground along the escape rope; however, the escape rope and descent device are only suitable for use in very critical situations, because most people have difficulty adapting to the use of escape ropes from a psychological and technical perspective. People who are descending from a high altitude, especially those with heart disease and high blood pressure, are unable to descend by themselves using a slide rope; in this case, a small single-person hanging basket is required for rescue. Construction workers now use single-person hanging baskets when working on the exterior walls of high-rise buildings. One end of the sling used in this hanging basket is tied to the top of the high-rise building, and the other end is tied to the electric winch of the hanging basket. The electric winch can raise and lower the hanging basket by retracting and retracting the sling; the necessary modifications to this single-person hanging basket can perform rescue tasks for high-level personnel: for example, covering the hanging basket with fireproof cloth can not only protect the people inside but also It is impossible to let the rescued people feel afraid of heights when they see the outside. At the same time, the hanging basket was also changed to ground-level remote control operation. Firefighters remotely controlled the sling and winch on the ground to allow the hanging basket to rise and lower independently.
The drone delivers a life-saving basket line to the trapped person. The drone delivers a life-saving basket line to the trapped person.
Someone may want to ask: Single person hanging basket How to hang up the sling? Because the hanging basket can only be raised by hanging the sling! To solve this problem, we still need to dispatch unmanned aircraft, that is, let the unmanned aircraft fly to the trapped people first with a very thin and light first-level sub-wire and a walkie-talkie; if the floor is not very high, the trapped people can fly by themselves Pull the thicker sling up by the sub-thread to find a strong place to tie it.
If the floor is very high, the trapped person can wrap the sub-wire around a strong column (such as an aluminum alloy window frame, balcony pillar), tie a counterweight and throw it to the firefighters on the ground, who can then use a winch to drive it. The sub-line will bring the sling upstairs and the trapped person will find a strong object to tie it up, or it will go around a strong column and throw it back to the ground for firefighters to tie the sling on the ground; when the sling is tied After stabilization, firefighters can use the remote-controlled life-saving gondola to autonomously rise to the trapped persons. The ground firefighters use the video intercom equipment to instruct the trapped persons to safely enter the life-saving gondola. After that, the ground firefighters remotely control the gondola and return to the ground to let the trapped people go. The trapped person is rescued; for the elderly, weak, sick and disabled, the firefighter can be sent up in the hanging basket to help them enter the hanging basket and land first. The firefighter will return to the hanging basket for the second time before landing. During this period, if the fire expands, trained firefighters can use their own zip lines to quickly descend to the ground to escape.
UAVs can be a savior in high-rise fires. Drones can be a savior in high-rise fires
The idea of ??adding slings to the lead wires of such drones continues to be improved. will achieve better results. For example, a rack capable of carrying about 1 ton is preset on the roof, and a V-shaped rope catcher is set up specifically for the automatic wiring of the drone. When a fire breaks out on the floor and a large number of people are trapped, the drone can The sub-line is autonomously dragged over the pylon and is captured by the V-shaped rope catcher and then returned to the ground. Firefighters can then use the sub-line to drag the sling to the pylon and back to the ground to fix it; at this time, firefighters can use a variety of Large life-saving equipment is hung with slings and lifted into the air for rescue operations, such as using a large hanging basket that can carry more than ten people for rescue, or lifting a large flexible slide to the trapped person for everyone to slide down in turn. The use of these large-scale life-saving equipment will further enhance the rescue capabilities in the event of fire in high-rise buildings.
UAVs can set up sling lines by themselves. UAVs can set up sling lines by themselves
In summary, when a fire breaks out in a high-rise building, the appropriate use of unmanned aerial vehicles Human aircraft can exert a very good rescue effect: delivering protective equipment through drones can greatly reduce casualties caused by toxic gases; using drones to "thread the needle" to set up various life-saving equipment such as life-saving baskets, it can also be used in large quantities in a timely manner This is undoubtedly good news for the vast number of people in high-rise buildings.