Agricultural unmanned airplane air collection downwards pressing type strip seeding device and control method thereof

Abstract

The invention discloses an agricultural unmanned airplane air collection downwards pressing type strip seeding device and a control method thereof. The device comprises an air collection flow guide mechanism, a seed material box, a different path seed discharging mechanism, a strip seeding seed spraying mechanism and a control module, wherein the air collection flow guide mechanism is fixedly arranged on an airplane body of an unmanned airplane and is provided with an air collection cabin; the seed material box is arranged inside the air collection cabin; the different path seed discharging mechanism comprises a seed brushing rolling wheel, a pig groove rolling wheel, a seed collecting hopper and a seed discharging pipeline; the seed collecting hopper is fixedly connected with the bottom of the seed material box; the seed discharging pipeline is connected with an outlet formed in the bottom of the seed collecting hopper; the strip seeding seed spraying mechanism is arranged at the bottom of the air collection flow guide mechanism and comprises a plurality of strip seeding seed spraying units; a Venturi structure is arranged inside each strip seeding seed spraying unit. On the basisof an agricultural unmanned airplane low-altitude precise operation platform, the seeding mechanism is improved; the downwards pressing wind field of an unmanned airplane rotor wing is efficiently utilized to realize the seed grain deep layer soil entering; the seedlings uniformly form rows, so that the seeding survival rate and the agriculture applicability are improved; in addition, the controlmethod is simple; the device is suitable for being popularized and used.

Description

technical field [0001] The invention belongs to the technical field of low-altitude precision operation of agricultural unmanned aircraft, and specifically relates to an agricultural unmanned aircraft collecting wind and pressing down a precise seeding device and a control method. Background technique [0002] Due to the traditional ground machinery walking in special ground environments such as paddy fields and mountains and hills, the adaptability of field operations is severely limited. The low-altitude precision operation platform for agricultural unmanned aerial vehicles with the characteristics of strong adaptability to operating terrain and advanced autonomous navigation control technology has been adopted. It is applied to fields such as plant protection and pesticide application, seed fertilizer spreading, auxiliary pollination, and agricultural monitoring. Especially, agricultural unmanned aerial vehicle seeding operations have significant advantages such as high ef...

AI Technical Summary

Problems solved by technology

However, the existing agricultural unmanned aerial vehicle sowing operations mainly adopt the form of throwing seeds, and there are still many problems: first, the throwing seeds can only be scattered on the soil surface, the depth of the seeds entering the soil is shallow, and the germination rate is low; secondly, the throwing seeds are scattered irregularly , it is impossible to achieve the agronomic requirements of precise sowing with consistent row spacing and uniform grain spacing; again, the controllability of the seeding speed of the throwing and spreading device is not strong, and the real-time matching between the amount of seed and the operating parameters is not high

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