Results 11 to 20 of about 4,542,550 (227)
Stereoscopic plant-protection system integrating UAVs and autonomous ground sprayers for orchards
Frontiers in Plant Science, 2022 For orchard plant protection, conventional large machines and small sprayers are practically restricted by either narrow planting intervals with dense leaves or their inadequate penetration power, which leads to an unsatisfactory effect of spray.
Shijie Jiang +6 more
doaj +3 more sources
Research of Control System for Plant Protection UAV Based on Pixhawk
Procedia Computer Science, 2020 Abstract In this paper the plant protection UAV control system based on Pixhawk flight controller has been proposed, which the system consists of two subsystems: flight control system and spray system. Based on PX4 firmware has been adopted to achieve the Pixhawk flight control.
Guang You Yang
exaly +2 more sources
Flight Safety Strategy Analysis of the Plant Protection UAV
IFAC-PapersOnLine, 2018 Abstract With the popularization of the concept of plant protection unmanned aerial vehicle (UAV) and the popularity of plant protection UAV, the requirement of flight safety is becoming higher and higher. Because of the difference of operating environments and operation requirements, compared to others areas of UAV, the focus of the research of ...
Yue Pan, Zichao Zhang, Shubo Wang
exaly +2 more sources
Agronomy, 2020 In the field of pesticide spraying, droplet size is one of the most important factors affecting droplet deposition and drift. In order to study the effect of different droplet size parameters on droplet deposition distribution and drift of aerial ...
Shengde Chen +7 more
doaj +3 more sources
Prescribed time backstepping sliding mode control for attitude stabilization of plant-protection UAVs under wind and motor disturbances [PDF]
Frontiers in Plant ScienceIn this paper, a novel prescribed time convergent backstepping sliding mode control method for robust attitude stabilization of plant-protection UAV is proposed to solve the uneven pesticide spraying issue caused by strong gusts and motor dynamics ...
Chenqi Zhu +3 more
doaj +2 more sources
Remote Sensing, 2021 To enhance obstacle avoidance abilities of the plant protection UAV in unstructured farmland, this article improved the traditional A* algorithms through dynamic heuristic functions, search point optimization, and inflection point optimization based on ...
Xin Huang +6 more
doaj +3 more sources
Agronomy, 2021 The aerial spraying of pesticides by plant protection unmanned aerial vehicles (UAV) is a process in which the spray droplet deposition on target sites occurs under the influence of the downwash wind field.
Yubin Lan +8 more
doaj +3 more sources
Plant spraying quality when used by drone-robots [PDF]
Scientific ReportsThe study aimed to evaluate how airflow from a small drone’s rotor affects the accuracy and consistency of liquid coverage on individual plants or small plant groups during low-altitude spraying.
Bogusława Berner +6 more
doaj +2 more sources
Results on the usage of UAV in chemical plant protection [PDF]
, 2019 he usage of UAV - Unmanned Aircraft Vehicle in the precision agriculture creates numerous opportunities for detecting and informing farm ers about the current state of cultivated crops, and the quality of the imple mentation of certain agro-technical operations during production.
Pajić, Miloš +5 more
openaire +2 more sources
Research on Flow Decision-Making Model of Plant Protection UAV Based on Feature Selection
IEEE AccessThe field environment is complex and variable, and multiple factors constrain the effectiveness of UAV applications, and a single flow applications may result in over- or under-use of pesticides in plots with different requirements.
Meng Wang +6 more
doaj +3 more sources