z Development of real-time laser-scanning system to detect tree canopy characteristics for variable-rate pesticide application
文献类型: 外文期刊
第一作者: Cai Jichen
作者: Cai Jichen;Zhao Chunjiang;Cai Jichen;Wang Xiu;Song Jian;Wang Songlin;Yang Shuo;Zhao Chunjiang;Cai Jichen;Wang Xiu;Song Jian;Wang Songlin;Yang Shuo;Zhao Chunjiang;Cai Jichen;Wang Xiu;Song Jian;Wang Songlin;Yang Shuo;Zhao Chunjiang
作者机构:
关键词: laser-scanning system;sensor;tree canopy;variable-rate spray;pesticide application efficiency;gridding volumes;calculation algorithm
期刊名称:INTERNATIONAL JOURNAL OF AGRICULTURAL AND BIOLOGICAL ENGINEERING ( 影响因子:2.032; 五年影响因子:2.137 )
ISSN: 1934-6344
年卷期: 2017 年 10 卷 6 期
页码:
收录情况: SCI
摘要: Improving pesticide application efficiency is increasingly important in orchard spraying. In this study, a laser-scanning system was designed to acquire gridding volumes of a tree to quantify the geometry characteristics of the tree canopy in real-time. A laser-scanning sensor mounted on a linear guide was utilized to measure the structure of a target tree canopy. A computer was used to receive measurement data from the laser scanner and obtain the movement distance of the laser-scanning sensor from a controller. An algorithm written with VC# program was designed to calculate gridding volumes of trees by recognizing valid measurement data from the laser scanner. Laboratory evaluations were conducted on three kinds of regular objects, and the maximum relative errors of section volumes of the cuboid, triangular prism and cylinder objects were 3.3%, 7.9% and 9.4%, respectively, which illustrated that the algorithm could calculate the section volumes in different parts of the objects with high accuracy. A conifer tree and an apple tree were chosen to verify detecting accuracy of the laser-scanning system at variable speeds and grid sizes. The variation coefficients of total volumes for each kind of the tree were 0.078 and 0.041, respectively, which indicated that the laser-scanning system could be applied to provide the gridding volumes of different canopy densities in real-time with good reliability for guiding a variable-rate sprayer.
分类号:
- 相关文献
作者其他论文 更多>>
-
Identification of Cucumber Disease and Insect Pest Based on Hyperspectral Imaging
作者:Li Yang;Zhai Chang-yuan;Li Yang;Li Cui-ling;Wang Xiu;Fan Peng-fei;Zhai Chang-yuan;Li Cui-ling;Wang Xiu;Li Yu-kang;Zhai Chang-yuan
关键词:Hyperspectral imaging; Machine learning; Characteristic wavelengths; Downy mildew; Leafminer-infected
-
Tomato Leaf Liriomyza Sativae Blanchard Pest Detection Based on Hyperspectral Technology
作者:Li Cui-ling;Jiang Kai;Ma Wei;Wang Xiu;Meng Zhi-jun;Zhao Xue-guan;Song Jian;Li Cui-ling;Jiang Kai;Ma Wei;Wang Xiu;Meng Zhi-jun;Zhao Xue-guan;Song Jian
关键词:Hyperspectral technology;Tomato;Pest;SAM;Red edge parameter;DA
-
Area Description Method of Land Use Features Based on Sets Algebra
作者:Gao Yunbing;Zhang Yipeng;Tong Qiuying;Wang Rumin;Gao Bingbo;Zhao Chunjiang;Zhou Yanbing;Pan Yuchun
关键词:Change of Land use;Sets Algebra;topological relationship;line and region;Spatio-temporal data analysis
-
Research on tomato seed vigor based on X-ray digital image
作者:Zhao Xueguan;Gao Yuanyuan;Wang Xiu;Li Cuiling;Wang, Songlin;Feng Qingcun;Zhao Xueguan;Gao Yuanyuan;Wang Xiu;Li Cuiling;Wang, Songlin;Feng Qingcun;Zhao Xueguan;Gao Yuanyuan;Wang Xiu;Li Cuiling;Wang, Songlin;Feng Qingcun
关键词:tomato seed;x-ray;computer vision;seed vigor
-
Assessment of Aerial Agrichemical Spraying Effect Using Moderate-Resolution Satellite Imagery
作者:Zhang Dong-Yan;Wang Xiu;Chen Li-ping;Ma Wei;Zhang Dong-Yan;Zhang Dong-Yan;Wang Xiu;Chen Li-ping;Li Bin;Ma Wei;Lan Yu-bin;Lan Yu-bin;Zhou Xin-gen
关键词:Satellite imagery;Vegetation index;Aerial spraying;Droplet deposition;Drift
-
Development and Experiment of Soil Disinfection Injection System
作者:Su Shuai;Wang Xiu;Zou Wei;Zhang Chunfeng;Li Jinpeng
关键词:insert soil disinfection;pulse width modulation;variable spray;flow model
-
Winter wheat biomass estimation based on canopy spectra
作者:Zheng Ling;Zhu Dazhou;Zhang Baohua;Wang Cheng;Zhao Chunjiang;Zheng Ling;Liang Dong
关键词:winter wheat;biomass;canopy spectra;crop growth period;partial least square regression