Performance comparison analysis of single-rotor UAV and multi-rotor UAV


Through the analysis of the operation effect of single-rotor and multi-rotor plant protection drones, the performance comparison is as follows:

a. Manipulation. The single-rotor does not have a stabilization system, and it is necessary to adjust the aircraft frequently and correct the flight direction of the aircraft. The operation is more difficult than the multi-rotor, and the control of the multi-rotor UAV is relatively simple.

b. Reliability. The multi-rotor UAV has no moving parts, and its reliability mainly depends on the stability of the brushless motor, so it has high reliability. In contrast, a single rotor has an active mechanical connection, which will cause wear, resulting in reduced reliability.

c. Maintenance. The structure of the multi-rotor is simple, and the motor, electronic speed controller, battery, blade, and frame are damaged and easy to replace. The single-rotor has more parts, and the installation and maintenance costs are relatively high.

d. Endurance, load performance. Both use lithium batteries as the power source, and their endurance and load performance are basically the same, while the load performance of the single rotor still has room for improvement.

e. Price. Single rotors are more expensive than multi-rotors. Taking a UAV loaded with 10L of pesticides as an example, the unit price of a single-rotor UAV is more than twice that of a multi-rotor UAV.

f. Safety aspects. Single-rotor operation is more dangerous than multi-rotor operation.

g. Job effect. The single-rotor UAV has a large rotor, and the downward airflow generated by the rotor can blow the pesticide to the back of the plant. Multi-rotor drones will also generate downward airflow, but it will be more turbulent than single-rotor airflow, and the single-rotor operation effect is better.

As far as plant protection operations are concerned, under the same load conditions, it is more suitable to choose a multi-rotor plant protection drone because the multi-rotor does not require a professional operator to control it.

Since September 2019, the city has used single-rotor and multi-rotor drones to carry out 6 demonstrations in the suburbs of the city, spraying rice, sugarcane, and tea trees, and more than 3,000 people watched. The demonstration effect has reached expectations , Improve farmers' awareness of agricultural aviation plant protection, and stimulate some farmers' intention to purchase plant protection drones. Practice has proved that plant protection drones have the advantages of high efficiency, saving medicine, and safety. In particular, the remote control operation effectively avoids the danger of operators being exposed to pesticides and improves the working conditions of operators; when drones are used for plant protection operations at ultra-low altitudes, the drift during spraying is reduced, and the loss of pesticides is less. The amount of pesticides is greatly reduced, which reduces the pollution to the environment, and solves the problem that ground plant protection machinery is not conducive to spraying operations on high-stem crops, mountains and hills, and complex terrain conditions.

Please pay attention to MAHOPE's website (//, and let's learn more about plant protection drones.