检索结果-南通市图书馆

Review of tensairity and its applications in agricultural aviation

International Journal of agricultural and Biological Engineering 2016年第3期9卷 1-14页

作者： Zang Ying Gu Xiuyan Zhou Zhiyan Luo Xiwen Zang Yu Qi Xingyuan Liu Wulan Yang Cheng College of Engineering South China Agricultural University/Engineering Research Center for Agricultural Aviation Application(ERCAAA)Guangzhou 510642China Collaborative Innovation Center for Grain and Oil Crops in South China Changsha 410128China

In recent years,the unmanned aerial vehicle(UAV)has undergone rapid development in field of agricultural plant protection;however,the payload and max-endurance are bottlenecks that limit its further *** is a new structure consisting of a bag filled with low-pressure gas,an upper rigid rod and a lower flexible *** puts tension pressure on the whole structure through internal gas pressure,provides continuous support to the upper rigid rod,and that is to say,the tensairity improves the stability of the structure in some *** also,tensairity is a self-supporting and self-balancing system,which means it is a simple,lightweight structure with small storage volume,strong bearing capacity,and low engineering *** also has the advantages of gasbag and BSS(beam string structure).The main objective of this research was to introduce the theoretical basis of tensairity and then discussed its development and ***,the advantages and disadvantages of tensairity were summarized,and development prospects of tensairity in agricultural aviation were *** last,it can be concluded that tensairity has potentials in agricultural *** tensairity is applied in agricultural UAVs,it will solve the two major problems of payload and max-endurance better,and help promoting the development of agricultural aviation technology in agricultural aviation administration and ***,it will help with meeting the aerial application requirements of high efficiency and maximal environmental *** research will provide a reference for improving working efficiency and economic benefits of UAVs in agricultural plant protection.

关键词： tensairity agricultural aviation unmanned aerial vehicle(UAV) bionics numerical simulation payload

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Development and prospect of unmanned aerial vehicle technologies for agricultural production management

引用

International Journal of agricultural and Biological Engineering 2013年第3期6卷 1-10页

作者： Yanbo Huang Steven J.Thomson W.Clint Hoffmann Yubin Lan Bradley K.Fritz United States Department of Agriculture Agricultural Research ServiceCrop Production Systems Research UnitStonevilleMS 38776USA United States Department of Agriculture Agricultural Research ServiceAreawide Pest Management Research UnitCollege StationTX 77845USA

Unmanned aerial vehicles have been developed and applied to support agricultural production *** with piloted aircraft,an Unmanned Aerial Vehicle(UAV)can focus on small crop fields at lower flight altitudes than regular aircraft to perform site-specific farm management with higher *** can also“fill in the gap”in locations where fixed winged or rotary winged aircraft are not readily *** agriculture,UAVs have primarily been developed and used for remote sensing and application of crop production and protection *** of fertilizers and chemicals is frequently needed at specific times and locations for site-specific *** monitoring of crop plant health is often required at very high resolution for accurate site-specific management as *** paper presents an overview of research involving the development of UAV technology for agricultural production ***,systems and methods are examined and *** limitations of current UAVs for agricultural production management are discussed,as well as future needs and suggestions for development and application of the UAV technologies in agricultural production management.

关键词： unmanned aerial vehicle aircraft aerial application technology sensor remote sensing precision agriculture agricultural aviation

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A novel detection method of spray droplet distribution based on LIDARs

引用

International Journal of agricultural and Biological Engineering 2017年第4期10卷 54-65页

作者： Zheng Yongjun Yang Shenghui Yubin Lan Clint Hoffmann Zhao Chunjiang Chen Liping Liu Xingxing Tan Yu College of Engineering China Agricultural UniversityBeijing 100083China College of Engineering South China Agricultural University/National Center for International Collaboration Research on Precision Agricultural Aviation Pesticides Spraying Technology(NPAAC)Guangzhou 510642China USDA ARS College StationTX 77845USA National Engineering Research Centre of Information Technology in Agriculture(NERCITA) Beijing 100097China National Engineering Research Centre of Intelligent Equipment for Agriculture(NERCIEA) Beijing 100080China

During the process of plant protection in agriculture,the distribution and deposition of droplets or fog fields could directly influence the effectiveness and efficiency of *** traditional method of measurement of the distribution of droplets mainly used water sensitive papers,glass containers or flour to collect data and inverse results,while a new method of measurement based on the principle of reflection of LIDAR was *** were the major targets of the study,and four important algorithms were primarily developed,including the recognition and extraction of targets,the superposition in time-domain,the calculation of effective ranges of distribution,and the development of 3D distribution *** with these algorithms,in order to eliminate the environmental noise,the methods of Fuzzy Environment Matching and Secondary Filter were created and ***,the statistics was used for analysis of the duration of scanning as well as computation of the distribution,with enough datasets but the minimum length of *** results of the experiments showed that the relative error of measurement was less than 7%and Relative Standard Deviation was less than 16%,compared with the values of manual ***,the 3D models were accurate and clarified in the wind-tunnel *** completed system based on this method could adapt to the requirements of both indoor and outdoor ***,it is capable of the quantized detection of droplet distribution,providing an effective way of tests for spray technique,especially for the research of the application of plant protection by UAVs.

关键词： droplets distribution detection agricultural aviation UAV

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Test and evaluation method for endurance performance of electric multi-rotors spraying drones

引用

International Journal of agricultural and Biological Engineering 2019年第2期12卷 18-28页

作者： Rui Ming Zhiyan Zhou Xiwen Luo Yubin Lan Xingang He Cancan Song Rui Jiang Luhong Tian Shahbaz Gul Hassan College of Engineering South China Agricultural University/Guangdong Engineering Research Center for Agricultural Aviation Application(ERCAAA)Guangzhou 510642China National Joint Research Center for Precision agricultural aviation Application Technology Guangzhou 510642China Key Laboratory of Key Technology on agricultural Machine and Equipment(South China agricultural University) Ministry of EducationGuangzhou 510642China

The endurance performance(EP)of electric multi-rotors spraying drones(EMSDs)is a key technical indicator that ensures the completion of tasks and improves their *** improve the EP of current EMSD,a test system was designed to determine the EP based on the EMSD test platform,and the performance evaluation method was ***,a test model was established to determine the equivalent energy dissipation using the performance-testing platform of the ***,a multisensory test system was *** attitude sensor,high-power DC power supply,infrared thermal imager,and serial port server were *** mounting fixture was designed to meet the universal mounting requirements of *** addition,the software LabVIEW was employed to program the code for the controller and the host computer,where functions such as data collection,data processing,communication,and graphical user interface(GUI),were performed reliably in real ***,the test method was explored by considering factors such as the power consumption,thermal efficiency ratio,and unit load power consumption *** particular,a comprehensive index method and expert consultation weight method were used to evaluate the EP of the EMSD with multiple ***,a systematic real-machine test was carried out on the three types of drones that are currently widely used in the *** results verified the effectiveness and feasibility of the proposed method,which was employed to test and evaluate the EP based on the EMSD performance testing *** the same time,it can provide a reference for the development of the EMSD.

关键词： agricultural aviation multi-rotors spraying drone endurance performance assessment method virtual instrument

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：