Agricultural unmanned aerial vehicle mounted biological control material delivery device and method

Abstract

The invention relates to an agricultural unmanned aerial vehicle mounted biological control material delivery device and method. With an agricultural unmanned aerial vehicle serving as a platform, thedevice comprises a control system and a storage chamber. Releasers used for wrapping biological control materials such as trichogramma eggs are arranged in the storage chamber. A releaser outlet is formed in the bottom of the storage chamber. A motor connected with the control system and used for driving the releasers to the releaser outlet is arranged in the storage chamber. The releaser outletcommunicates with an emitter. The emitter is connected with the control system and used for throwing the releasers out of the storage chamber in an accelerated mode. Each releaser comprises an upper half cavity portion and a lower half cavity portion which are detachably connected, wherein the specific gravity of the lower half cavity portion is greater than that of the upper half cavity portion,the releaser is provided with a plurality of channels communicating in sequence, the final channel is a releasing channel arranged in the outer surface of the releaser and used for communicating withthe exterior, and a one-way check valve is arranged in an outlet of the releasing channel. When the releasers drop, the bottoms of the lower half cavity portions are always kept facing downwards, theone-way check valves can be used for effectively preventing blockage of the releasing channels and backward flowing of rainwater, and the trichogramma eggs can be released without impacting and separating the releasers, thereby contributing to protection of the trichogramma eggs.

Description

technical field [0001] The present invention relates to the technical field of biological control material delivery devices, and more specifically, to a biological control material delivery device and method mounted on an agricultural drone. Background technique [0002] Pests have always been one of the main factors affecting agricultural development. Due to the long-term use of chemical pesticides, some pests have developed strong resistance to pesticides. At the same time, the natural enemies of many pests have also been killed in large numbers due to the use of pesticides, causing the harm of some pests to continue to rampant. In addition, the extensive use of chemical pesticides will also cause water, air and soil pollution, and enter the human body through the food chain, endangering people's health. [0003] Biological control is a control method that uses beneficial organisms or other organisms (including microorganisms, parasitic natural enemies, predatory natural ...

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Problems solved by technology

[0009] For example, "A Trichogramma release device that can be loaded on a drone" (Patent No. ZL201620646963.3), the distance between the partitions cannot be adjusted and controlled adaptively according to the size of the releaser, and it is easy for multiple materials to fall at the same time or fail to fall In other cases, the control accuracy is not high enough, and the waterproof and protection of the releaser after landing under different types of field conditions are not considered.

The "biological dispenser" (patent publication number CN106946057A) needs to release the Trichogramma by impacting the biological container to separate the biological container. The biological container needs to be conveyed by a screw conveyor and a driving part. Energy loss will inevitably occur during the impact, and it is not easy to Controlling the time gap between the launch of biological containers can easily cause errors in the distance between adjacent biological containers; in addition, after the biological container is separated by impact, the Trichogramma eggs are directly exposed to the outside world, which is not conducive to the protection of Trichogramma eggs and biological control. effect susceptible

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