Novel variable mist spraying system based on unmanned rotorcraft

A spray system and unmanned aerial vehicle technology, which is applied to spray devices with movable outlets, aircraft parts, spray devices, etc., can solve the problems of droplet deposition characteristics that cannot meet the requirements, the influence of droplet parameters, and the different falling distances of droplets. , to achieve the effect of facilitating data analysis and system optimization and upgrading

CN105984588AInactive Publication Date: 2016-10-05武同昆
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-10-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a novel variable mist spraying system based on an unmanned rotorcraft. The novel variable mist spraying system consists of three parts, i.e. an electric centrifugal spray head speed regulating system, a remote control system and a host computer system. The electric centrifugal spray head speed regulating system comprises an ARM main controller, a sensor and a spray head; the remote control system comprises an ARM main controller, an LCD and keys; and the host computer system can display the sensor data and transmit an instruction to change a PWM duty ratio. The whole system has two modes, i.e. a manual mode and an automatic mode. At the manual mode, needed mist drops can be obtained by changing the rotating velocity of an atomizing disc. At the automatic mode, a volume median diameter (Dv50) of the mist drop which is equal to 100 micrometers is taken as a target, a relational expression between the rotating velocity of the atomizing disc and the temperature, humidity and height is obtained according to a test, the rotating velocity of the atomizing disc can be changed by considering the volatilization factor in the mist drop falling process, so that the volume median diameter of the mist drops deposited on leaves of crops can be always about 100 micrometers. The variable spraying device has the effects of water conservation and environment protection.
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Description

technical field

[0001] The invention relates to a new variable spray system based on a small rotor UAV, which can accurately adjust spray parameters in manual and automatic modes. The device is used for aerial spraying of small rotor plant protection UAVs. In the automatic mode, fog According to the influence of volatile factors during the droplet falling process, according to the flying height when spraying and the atmospheric temperature and humidity at that time, the rotation speed of the atomization disc is automatically adjusted in real time to ensure that the volume median diameter of the droplets falling on the crop leaves is about 100µm ( According to the content of the agricultural aviation operation quality operation index of the People's Republic of China, for low-volume and ultra-low-volume spraying, about 100µm is the best droplet diameter for most pesticides to eliminate pests and diseases); in manual mode, change the electric centrifugal nozzle through the host c...

Examples

Embodiment Construction

[0030] The present invention is described in further detail below in conjunction with accompanying drawing:

[0031]A new type of variable spraying system based on the airborne rotor UAV, including an electric centrifugal nozzle speed control system, a remote control system, and a host computer control system. The electric centrifugal sprinkler speed control system includes ARM controller (201), electric centrifugal sprinkler (207), temperature and humidity sensor (203), sonar height sensor (204), DC motor drive module (206), wireless transceiver module (202), Composed of a sonar position measuring sensor (205), the sonar position measuring sensor (205) is installed on the upper part of the medicine box (209), measures the liquid level of the medicine liquid in the medicine box, and sends the temperature and humidity, height and liquid level data in the medicine box to the wireless The transceiver module (202), while the wireless transceiver module (202) accepts the duty cycle...