公开(公告)号：US12067079B2

公开(公告)日：2024-08-20

申请号：US17144150

申请日：2021-01-08

申请人： China Institute of Water Resources and Hydropower Research

发明人： Baozhong Zhang ,  Zheng Wei ,  He Chen ,  Xin Han ,  Yinong Li ,  Taisheng Du ,  Zhigong Peng ,  Jiabing Cai ,  Congying Han ,  Yaqi Wang

IPC分类号： G06N3/04 ,  G06F18/214 ,  G06F18/241 ,  G06F18/2415 ,  G06N3/047 ,  G06N3/08

CPC分类号： G06F18/214 ,  G06F18/24155 ,  G06N3/047 ,  G06N3/08

摘要： A farmland reference crop evapotranspiration prediction method based on uncertainty of meteorological factors, includes: S1. acquiring a set number of groups of weather forecast data of a prediction region within a preset time period; S2. inputting each group of weather forecast data into a Bayesian probability forecast system to obtain corrected weather forecast data; and S3. inputting each group of the corrected weather forecast data into a trained RBF neural network, and predicting to obtain a farmland reference crop evapotranspiration. In the present invention, the Bayesian probability forecast system is configured to correct the weather forecast data and eliminate uncertainty of weather forecast data to obtain the accurate reference crop evapotranspiration forecasted by the RBF neural network using these data.

公开(公告)号：US10845243B1

公开(公告)日：2020-11-24

申请号：US16878620

申请日：2020-05-20

申请人： China Institute of Water Resources and Hydropower Research

发明人： Baozhong Zhang ,  Zhigong Peng ,  Zheng Wei ,  He Chen ,  Shaozhe Lin ,  Jiabing Cai ,  Lu Liu ,  Nana Han ,  Qian Zhang

IPC分类号： G01J3/42 ,  A01G22/20 ,  G01N21/359 ,  G01N21/3577 ,  G01N21/3554

摘要： A method for establishing a monitoring model of a water content of a winter wheat canopy based on spectral parameters, includes the following steps: measuring a spectral reflectance and a water content of the winter wheat canopy; constructing the spectral parameters through the spectral reflectance; wherein, the spectral parameters comprise spectral transformation forms and “trilateral” parameters; performing correlation analysis on the water content of the winter wheat canopy and the spectral transformation forms and the trilateral parameters, selecting comprehensive spectral parameters with a significant correlation for each growth stage, performing principal component analysis on the comprehensive spectral parameters, separately constructing a water content monitoring model for each growth stage, and combining the water content monitoring model for each growth stage into the monitoring model of the water content of the winter wheat canopy for the whole growth stage.

公开(公告)号：US11073505B2

公开(公告)日：2021-07-27

申请号：US16536321

申请日：2019-08-09

申请人： China Institute of Water Resources and Hydropower Research

发明人： Baozhong Zhang ,  Zheng Wei ,  Songjun Han ,  Zhigong Peng

IPC分类号： A01M1/22 ,  G01N33/00 ,  H04N5/232 ,  G01N33/24 ,  G06T7/00 ,  H04N5/225 ,  H04N7/18 ,  G01W1/14 ,  H02J7/35 ,  H02K7/116

摘要： An Internet-of-Things-based crop growth monitoring device includes a plurality of monitoring mechanisms. Each monitoring mechanism includes a base and a support rod fixed on the base. The support rod is provided with an electric element installation casing formed by snap-fitting an upper conical cover and a lower conical cover. A component for driving a swing cantilever to rotate is provided on the support rod at a position near a lowermost surface of the upper conical cover. A plurality of distance measuring laser sensors are provided on the swing cantilever. A component for driving an ultra-high-definition camera to rotate is provided on the support rod at the section of the upper conical cover. The images captured by the ultra-high-definition camera is used to obtain the leaf growth situation of the crops, and the data collected by the distance measuring laser sensors is used to determine the plant height of the crops.

公开(公告)号：US11013190B2

公开(公告)日：2021-05-25

申请号：US16503628

申请日：2019-07-05

申请人： China institute of water resources and hydropower research

发明人： Baozhong Zhang ,  He Chen ,  Lijuan Du ,  Zheng Wei ,  Zhigong Peng ,  Jiabing Cai

IPC分类号： A01G25/16 ,  G06Q50/06

摘要： According to an irrigation method based on water usage characteristics and real-time weather condition during different crop growth stages, whether the crops are in a shortage of water in the growth is determined based on an actual soil water content, a water usage amount of the crops during the given growth stage, and a rainfall amount during the next day. If the shortage of water occurs, the actual water usage amount of the crops is calculated, and a water pump can be self-adaptively turned on to water the crops and an administrator is informed when the reservoir has an insufficient water storage, according to the relation between the water storage amount of the reservoir and the actual water usage amount.