Aircraft

Abstract

The invention relates to an aircraft (10) comprising a liquid chemical container (20), at least one liquid spraying unit (30), at least one actuator (40), a plurality of sensors (50), and a processing unit (60). The liquid chemical container is configured to contain a liquid chemical. The at least one liquid spraying unit is configured to spray a liquid chemical. The at least one actuator is configured to operate the at least one liquid spraying unit. At least one sensor (51) of the plurality of sensors is configured to measure a speed of the aircraft relative to the ground. At least one sensor (52) of the plurality of sensors is a light detection and ranging (LIDAR) sensor configured to measure a range direction and velocity of airborne suspended particles relative to the aircraft relative to a head-tail axis of the aircraft. The processing unit is configured to determine an air movement direction and an air movement distance relative to a projection of the head-tail axis on the ground, and to determine an air movement velocity relative to the ground. This determination includes utilizing the speed of the aircraft, the direction and distance of the aerial suspended particles relative to the aircraft relative to the head-tail axis of the aircraft, and the speed of the aerial suspended particles relative to the aircraft. The processing unit is configured to control at least one flight operation of the aircraft and / or to control at least one actuator. Determination of at least one command for controlling at least one flight operation of an aircraft and / or determination of at least one command for controlling at least one actuator comprises an air movement direction and an air movement distance with a determined projection on the ground with respect to a head-tail axis and a determined relative to the ground and the air movement speed is increased.

Description

technical field [0001] The invention relates to an aircraft. Background technique [0002] Spray drift caused by wind and gusts is an important problem in agricultural production. Spray droplets drift onto non-target surfaces such as within sensitive areas, on bystanders, bodies of water, and adjacent fields. Wind speed and direction are not constant, but vary in time (from seconds to hours) and in space in all three dimensions, this variation is caused by, for example, obstacles on the ground, surface friction of the ground or crops, and ground caused by thermal changes in air temperature. Obstacles with a height of 1 m create vortices that extend downwind up to 10 m or more and can be up to 2 m in height (depending on other factors such as wind speed), and for larger obstacles such as trees and buildings this This vortex can extend farther and higher. Since aerial vehicles such as drones typically fly and apply products at altitudes of 1 to 2 meters or more, even small...

AI Technical Summary

Problems solved by technology

As a result, the vehicle may deviate from the optimal flight path and the spray may deviate from its intended deposition target

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