The drone hangs a "laser cannon" to easily "shoot down" the floating objects on the high-voltage line, which seems to be the only black technology in the science fiction blockbuster. For a long time, Baotou Honeycomb Aviation Technology Co., Ltd., which is committed to the research and production of drone technology, has been involved in the development of the first laser pointer clearing drone. Recently, the company's products have been officially put into use in China Southern Power Grid.
The high-voltage transmission line is definitely a forbidden area where foreign objects exist. As the first drone equipped with a "laser cannon", the target of its attack is the light-weight foreign objects such as kite streamers and plastic films on the high-voltage transmission wires. Its "laser cannon" The high power density laser generator without water cooling is adopted, which solves the problem that the laser generator repels the high temperature of the body, and can "destroy" the floating objects in a very short time. This seemingly simple process actually overcomes many technical difficulties.
A four-rotor UAV platform with universal mounting capability, using a hybrid electric-electric drive system (fuel power generation, electric drive), with ultra-long flight time, can carry different mission loads to complete high-definition video acquisition and real-time backhaul , 3D surveying and mapping, projectile throwing and air shouting and other tasks, and equipped with omnidirectional millimeter wave radar avoidance system and automatic parachute landing device for emergency.
"This drone can travel for long distances, and its unique high-reliability flight control system, hybrid all-electric power system and platform system integration are inseparable." Baotou Honeycomb Aviation Technology Co., Ltd. Technology R & D person in charge Li Wei analyzed to reporters.
The control system uses industrial-grade electronic components, supports online switching of GPS, attitude, and manual flight modes, and the differential GPS positioning accuracy reaches 2 cm. In addition, the integrated flight control is also equipped with an omnidirectional millimeter-wave radar, which can sense obstacles and avoid obstacles within 40-50 meters, and also has super anti-magnetic interference capabilities. This series of advanced intelligent technologies is The normal and stable operation of the aircraft in the complex environment at sea provides a guarantee.
As a branch of the aerospace industry, civil drones seem to be lighter in weight than space shuttles, rockets, and satellites, but their significance for the development of national economy and people's livelihood cannot be underestimated, such as the rapid rise of ultra and ultra high voltage. Transmission field.
The person in charge of Baotou Honeycomb Aviation Technology Co., Ltd. told reporters: "The airspace through which the high-voltage transmission line passes is an absolute foreign matter prohibited area. It is self-evident to ensure the safety of this area. To carry out such tasks, drones are the most suitable. As long as floating objects are found on the high-voltage line, the operator operates the drone to take off, gradually approaches, and cuts off and clears the obstacles by emitting laser at the moment when it is difficult for the naked eye to notice, this is our long-term research and development goal ."
In actual operation, the laser has high requirements for control accuracy, and the wind in the high altitude affects the relative positions of the drone, wires and floating objects all the time, so the biggest technical difficulty of the laser drone is to maintain high precision at high altitude. To detect and strike, it is necessary to burn foreign objects and not damage the wire.
In terms of radar guidance technology, the millimeter-waveguide seeker has the characteristics of small size, light weight and high spatial resolution. Compared with infrared seekers such as infrared, laser, and television, the millimeter-waveguide seeker penetrates fog, smoke, and dust The ability is stronger, you can continue to observe all day and all day. In this regard, the R&D team adopted millimeter-wave radar for accurate ranging, and used high-precision stable gimbals to keep the front sight stable. The ultra-low latency image transmission link of 60 milliseconds also ensured the precise operation of the ground control personnel. Stable and accurate under the level wind, which means to hit and hit in one hit.
"After receiving the clearance task, the drone can fly to the mission site at high speed with advanced radar positioning. After confirming the target, we directly control the generator to shoot out the green laser pointer to clear it. The high temperature of the laser can burn small foreign objects instantly without generating Open flames, large foreign bodies, we can use lasers to accurately separate them from the main building. Compared with the fire-spraying drones that are widely used in the industry, they have lower requirements for the operating environment and do not cause fires. Risk, there is no requirement for cooling, more safe and reliable." Li Wei said.
The reporter learned that in terms of power system, the new type of UAV uses the H2 fuel power generation power system developed in cooperation with Ruishen Aviation, which burns gasoline to generate electrical energy and supplies it to the UAV, which retains the advantages of high energy density of gasoline. It also inherits the characteristics of simple and flexible operation of electric drones. Its biggest technical advantage lies in its high power-to-weight ratio. Its own weight of 3.7 kg can provide nearly 2KW of DC energy, which is 11 times that of traditional power generation equipment and 7 times that of variable frequency power generation equipment.