Agricultural unmanned gyroplane optimal working parameter testing device and method

Abstract

The invention discloses an agricultural unmanned gyroplane optimal working parameter testing device and method. The agricultural unmanned gyroplane optimal working parameter testing device comprises a gyroplane, a flight attitude console, a working altitude lifting platform, a pesticide spraying system, a wind speed flow field testing system and a spraying characteristic testing system, wherein the spraying characteristic testing system comprises a fogdrop flow field testing system, a fogdrop particle size measuring system and a spraying sedimentation testing system. According to the testing device and method, influences of single-rotor airplane structures, multi-rotor airplane structures, pesticide spraying parameters of pesticide application flow, pesticide application pressure, working altitudes and positions of spray nozzles relative to centers of airplane bodies, environmental influences of wind speed, wind direction, temperature and humidity and airplane attitude parameters of roll angles, pitching angles and yaw angles on fogdrop uniformity, wind speed flow field uniformity, fogdrop particle size distribution, other pesticide application effects and pesticide application efficiency can be provided comprehensively, systematically, synthetically and quantitatively, spraying characteristics of agricultural gyroplane spraying operation are tested, and optimal pesticide application combined parameters are researched.

Description

Technical field: [0001] The invention relates to a testing device and a testing method for optimal operating parameters of an agricultural unmanned rotorcraft, which are used to test the spray operation effect under different operating parameter conditions in the aerial spraying of the agricultural and forestry unmanned rotorcraft, and belong to the agricultural aviation plant protection machinery equipment technology field. Background technique: [0002] The use of unmanned rotorcraft for aerial plant protection operations is one of the main development directions of plant protection technology. Aerial spraying of pesticides can be widely used in the prevention and control of pests and weeds in forestry and field crops, especially in the effective and timely prevention and control of large-scale explosive pest disasters; Hovering, no need for a dedicated take-off and landing airport, and the downward airflow generated by the rotor helps to increase the penetration of the d...

AI Technical Summary

Problems solved by technology

In actual flight operations, due to the real-time changes in climate and environment and the characteristics of the aircraft's own vibration, it is impossible to quantitatively study the impact of changes in its operating parameters, especially the changes in the aircraft's own attitude parameters, on the spray effect, and it is impossible to clarify the important factors that affect the spray effect As for the influence of rotor wind field area size and wind field air particle velocity vector distribution on spray field, because it mainly relies on fluid software simulation and limited data analysis after wind speed sensor single point and array measurement, it belongs to invisible analysis. Authenticity and accuracy are greatly affected

Therefore, the current spraying of rotorcraft relies more on operating experience and ground deposition experiments. The relationship between the effect, the influence of the rotor wind field on the droplet velocity vector, the aircraft attitude and the pesticide spraying parameters (injection flow, injection pressure, operating height, type of nozzle, and the spatial position of the nozzle relative to the center of the body) on the pesticide application effect. None of the effects have been quantitatively and accurately studied

Images