Results 51 to 60 of about 11,538 (196)

Mitigating ground effect on mini quadcopters with model reference adaptive control [PDF]

, 2019
Mitigating ground effect becomes a big challenge for autonomous aerial vehicles when they are flying in close proximity to the ground. This paper aims to develop a precise model of ground effect on mini quadcopters, provide an advanced control algorithm ...
Chan, SN, Kong, Z, Lee, S, Wei, P
core  

Detection of "Flavescence dorée" Grapevine Disease Using Unmanned Aerial Vehicle (UAV) Multispectral Imagery [PDF]

, 2017
Flavescence dorée is a grapevine disease affecting European vineyards which has severe economic consequences and containing its spread is therefore considered as a major challenge for viticulture.
Anne Jacquin, Bonfils, Collett, Fabio Guttler, Gennaro, Gérard Dedieu, Hervé Poilvé, Jean-Baptiste Féret, Johanna Albetis, Michel Goulard, Mori, Pavan, Poilvé, Richardson, Schvester, Steele, Sylvie Duthoit, Van den Berg   +17 more
core   +3 more sources

Key Technology Progress of Plant-Protection UAVs Applied to Mountain Orchards: A Review

Agronomy, 2022
With precision agriculture developing rapidly worldwide, water-saving, energy-saving, environment-friendly, and efficient agricultural production activities are effective ways to address human needs for agricultural products under the conditions of intensifying climate change, limited available arable land resources, and rapid population growth. Ground-
Yu, Shaomeng, Zhu, Jianxi, Zhou, Juan, Cheng, Jianqiao, Bian, Xiaodong, Shen, Jiansheng, Wang, Pengfei   +6 more
openaire   +2 more sources

Application Progress of UAV-LARS in Identification of Crop Diseases and Pests

Agronomy, 2023
Disease and pest stress is one of the important threats to crop growth and development, which have a very adverse impact on crop yield and quality every year, even leading to crop failure.
Gaoyuan Zhao, Yali Zhang, Yubin Lan, Jizhong Deng, Qiangzhi Zhang, Zichao Zhang, Zhiyong Li, Lihan Liu, Xu Huang, Junjie Ma   +9 more
doaj   +1 more source

Securing Real-Time Internet-of-Things

, 2018
Modern embedded and cyber-physical systems are ubiquitous. A large number of critical cyber-physical systems have real-time requirements (e.g., avionics, automobiles, power grids, manufacturing systems, industrial control systems, etc.).
Chen, Chien-Ying, Hasan, Monowar, Mohan, Sibin   +2 more
core   +1 more source

Application of an Ultrasonic Sensor to Monitor Soil Erosion and Deposition [PDF]

, 2020
While erosion and deposition are naturally occurring processes, these processes can be accelerated by human influences. The acceleration of erosion causes damage to human assets and costs billions of dollars to mitigate.
Johnson, Jessica E
core   +1 more source

Grain farmers' technology acceptance behavior of plant protection UAVs

Frontiers in Sustainable Food Systems
BackgroundMechanization and modernization of agricultural development are conducive to the stability of food production and promote increased production and income of food and agriculture. Shandong Province continues to promote pesticide efficiency and reduction in food crop pest control, and plant protection unmanned aerial vehicles (UAVs) have been ...
Wuwei Zhang, Hao Li, Zhaomin Xia, Jingru Hu, Menghan Xin   +4 more
openaire   +1 more source

Fault Tolerant Control Algorithm of Hexarotor UAV

Journal of Robotics, 2020
As the best representative of the current cutting-edge technology, unmanned aerial vehicle (UAV) is widely used in various fields such as electric power inspection, agriculture, forestry and plant protection, fire rescue, and film and television shooting.
Songming Jiao, Haiyue Gao, Xiaokun Zheng, Dengpan Liu   +3 more
doaj   +1 more source

Method for Vortex Shape Retrieval and Area Calculation Based on Convex Hull Algorithm

IEEE Access, 2021
The shape and area of the vortex are important indicators to judge the effect of chemical liquid spraying and crop pollination by agricultural plant protection UAV. However, the traditional way of extracting the vortex related data through manual methods
Xu Wei, Jiyu Li, Bo Long, Xiaodan Hu, Han Wu, Huifen Li   +5 more
doaj   +1 more source

Research Progress of Key Technologies and Verification Methods of Numerical Modeling for Plant Protection Unmanned Aerial Vehicle Application

智慧农业, 2021
With the increasing application of plant protection unmanned aerial vehicle (UAV) in precision agriculture, the numerical simulation methods for the development of the downwash flow field of the plant protection UAV and the deposition and drift process ...
TANG Qing, ZHANG Ruirui, CHEN Liping, LI Longlong, XU Gang   +4 more
doaj   +1 more source