According to foreign media reports on June 23, the emergence of drones has provided many conveniences for people's lives, and has been widely used in all walks of life. However, its short battery life has always been a headache for researchers. Currently, drones rely on six kinds of power to complete complex work.
Most drones are equipped with lithium batteries, but the effect can only last for about 20 minutes, and it is very time-consuming and laborious to disassemble and replace the batteries frequently. In response to this phenomenon, the researchers have explored two new sources of power, greatly improving the efficiency of the drone. First, the use of hydrogen fuel cells instead of lithium batteries can support the continuous operation of the drone for two hours, and the charging is very fast; the second is to use the laser transmitter to power the drone, the laser beam emitted from the ground is received by the fuselage The machine is converted into power and can almost support the drone to work all the time.
In addition, there are three common sources of power for solar, internal combustion engines and cable. UAVs that use solar power are usually equipped with lithium batteries and solar cells. When there is sunlight, solar power can be used to provide flight power, and lithium batteries are used as backup batteries. Power generation with an internal combustion engine can support the drone to fly at a speed of 100 kilometers per hour for one hour, but the noise is high and there is a safety hazard because there is a flammable gas inside the drone. Powered by a wired cable, the drone can be operated almost permanently, and the speed at which the drone can transmit data to the computer can be accelerated. However, due to the limitation of the wired connection, long-distance flight cannot be completed.
The two power sources of hydrogen fuel cells and laser emitters are favored by the research and development community because of their remarkable effects and high safety factor. They can also provide inspiration for the exploration of power sources of other aircraft in the future.
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