UAV equipment is not afraid of black flying, flying randomly

In recent years, drones have been very popular, but what is even more popular than it is the frequent occurrence of drone “black flying” incidents. When overwhelming reports and criticisms have swept through, what should drones do as a new thing? How can the "black flying" of drones be eliminated? Today we will talk about drones and "black flying" things!

Event review

At 14:05 on April 14, 2017, in an area 30 kilometers north of the west runway of Chengdu Shuangliu International Airport (located in the Pidu District), drone activity was discovered in the airport clearance protection area, causing 3 flights to circumvent the sky over Chengdu. OK, wait 5 minutes for the ground flight at Chengdu Shuangliu International Airport.

At 14:13 on April 17, 2017, in the 18 kilometers north of the west runway of Chengdu Shuangliu International Airport (located in the Pidu District), drone activity was found in the airport clearance protection area, causing multiple flights in the area to wait in the air , Causing 12 flights to Chengdu to alternate to other airports.

At 18:26 and 18:38 on April 18, 2017, in the area of ​​3.7 kilometers (located in Shuangliu District) on the north side of the west runway of Chengdu Shuangliu International Airport and the area of ​​14.8 kilometers on the same side (located in Chongzhou City). Unmanned aerial vehicle activity was found in the reserve, causing 22 flights to Chengdu to alternate to other airports, and 23 flights were delayed.

At 2:38 pm on April 21, 2017, a green drone appeared near the runway of Chengdu Shuangliu Airport, causing 13 flights to alternate to the nearby airport and 1 flight to return. About an hour later, another drone also appeared near the airport, causing 19 flights to alternate and 2 flights to return. At about 5 o'clock in the afternoon, a drone passed under the landing aircraft. Subsequently, Chengdu Shuangliu International Airport issued a large-scale flight delay warning, and more than 10,000 passengers were stranded.

At around 6 pm on April 26, 2017, another incident of "drone jamming" occurred at Chengdu Shuangliu Airport, causing a total of 22 flights to alternate.

Since 2017, airports including Chengdu, Mianyang, Chongqing, Hangzhou, Shenzhen, Kunming, Harbin, etc. have experienced drones affecting the normal flight of flights. Such concentrated airport incursions have really pushed the issue of "black flying" of drones to the forefront.

How harmful is the "black flying" of drones?

Taking Chengdu Airport, which has been repeatedly invaded, for example, from mid-April to the end of 2017, nearly 10 intrusions occurred at Chengdu Airport. The most serious one caused 58 alternate flights, numerous flight delays, and more than 10,000 passengers were stranded. The economic losses caused can reach millions. In addition to millions of economic losses at every turn, "Black Flying" sometimes brings serious life-threatening!

First of all, drone jammer is the killer during the take-off and landing phase of the aircraft. Everyone should know that the 3 minutes during the take-off phase and the 7 minutes during the landing phase are called black 10 minutes. According to research, 80% of aircraft accidents occur in these 10 minutes, so the safety of this period is the most important in the entire flight. The important link. During this period of time, many of the flight control systems, automatic navigation systems, automatic drive systems, landing gears, and communication equipment on the aircraft may be interfered by other wireless signals, causing system judgment errors to cause catastrophes. This is the main reason why we are forced to turn off mobile phones, computers and other electronic devices with communication functions during the takeoff and landing phases. Once the signal is disturbed, even a very short time may cause accidents such as the aircraft's trajectory deviation and hitting the tower. You must know that the aircraft itself is flying at extremely fast speed and heavy weight. The consequences of such a collision are very serious!

The second threat of drones to aircraft: collisions. Everyone knows that the aerial objects that planes were most afraid of were birds, but now the "black flying" drones, which fly at a height similar to that of birds, but far exceed them, have become a new threat. As ordinary people, we may not be able to appreciate the rapid development of China's civil aviation in the past two years, but in fact, the civil waterways that are invisible above us are already as intricate as the traffic roads in life, especially in large cities with no one. The proximity of the aircraft is very likely to cause an "aircraft collision" accident. How destructive is the drone hitting the aircraft? We will know by looking at the picture:

Previously, professors from Cranfield University in the United Kingdom and his team conducted related experiments. They ejected an object of the same size, weight, and material as the drone onto a stationary aircraft radome. The ejection speed can reach 321 kilometers per hour, which is similar to the speed of the aircraft during low-altitude flight. Through experiments, it can be seen that the radome after the impact of the drone is easily torn apart by a gap. If the relative velocities of the two are superimposed on this basis, the destructive force caused by the impact is difficult to estimate.

The problem of black flight has existed since the unmanned aerial vehicle products have become individual users, and countless airports around the world have been deeply invaded and harassed by drones. In fact, it is not only the invasion of the airport, but also the threats and accidents caused by black flying drones in many other ways. If black drones are deployed on crowded urban streets and areas, and industrial heavy grounds, if they crash by mistake, they will surely cause catastrophe. It is not alarmist. In May 2017, when a tourist was visiting the West Lake in Hangzhou, he encountered a nearby drone that suddenly lost control, and was cut his eyes by the rebounding rotor. The situation was once critical, and everything was the price of “blood”.

Based on such a powerful "lethality" of Hefei, the UAV management regulations in various places have also been released. As for the specific content of the regulations, I won't go into details here. Welcome all drone fans to turn to Du Niang to learn more. So for drones that refuse to accept management and insist on "black flying", how can the relevant regulatory agencies restrict drones? Of course it is to "fight" it down!