How much do you know about plant protection dynamical system?

TopXGun

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What is multi-rotor dynamical system?

Dynamical system provides lift force for UAVs, which are usually divided into two types: electric and pneumatic. The dynamical system is crucial as the matching between the parts will directly affect the performance and stability of the whole system.

What are the dynamical differences between plant protection drones and the aerial photography drone?

Plant protection drone is mainly used for spraying pesticides, taking 10 liter or 20 liter water, so the first characteristic for plant protection dynamical system is its heavy load and big power. The working intensity of dynamical system is relatively high because of concentrated operation time, larger operation area and higher manpower cost. Its working environment is relatively poor, generally work in high temperature, high humidity, strong corrosive environment. Then, we need to detect the abnormal sound and motor’s surface temperature each time we finish the operation, otherwise, it will affect the performance of dynamical system. Therefore, our plant protection dynamical system needs to be repaired or replaced in time.

Common parameters about dynamical system of plant protection

1. Motor

When you select the motor, you will find that different motors have different KV values. What dose KV value mean? KV value is the value of brushless motor’s free-running speed when the input voltage is increased by 1 volt, taking 100KV for example, means that the motor increased by 1 volts per brushless motor idle speed increased by 100 rpm. Therefore, the higher the KV value, the faster the speed of the motor is.


Motor power supply:generally 12S, 6S and so on. Motor dimensions: stator or rotor dimensions:motors of the 8 and 6 series. The uniaxial tension of the motor: rated tension, of course, matched with the motor KV value and propeller size. The maximum tensile force is also a factor in our selection of dynamical system as intensive operation is required during plant operation process.


2 ESC

Power supply: generally 12S and 6S, matched with the motor KV value and propeller size.

Sustained maximum current power: generally 60A, 80A, 100A and even 120A

Control types: mainly divided into square wave , FOC

3 Propeller

Propeller size: such as a propeller with 30105 parameter, generally refers to the propeller is 30 inches long and the pitch 10.5 inches.

Propeller type: straight propeller, folding propeller

4 Battery

In general, we use lithium batteries for uavs. Plant protection drones commonly use 6S and 12S. This parameter is generally refers to the number of electrical cores. 6S refers to 6 pieces of electrical core and 12S refers to 12 pieces of electric core.

Capacity: commonly 10000mAh, 16000mAh, 22000mAh and so on.
 

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