HTTP状态 404 - 未找到

HTTP状态 404 - 未找到


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Apache Tomcat

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    Research on intelligent agricultural monitoring and management system based on Internet of Things
    HE Jian-qiang, ZHANG Ying, XU Xing
    HUBEI AGRICULTURAL SCIENCES    2024, 63 (8): 176-181.   DOI: 10.14088/j.cnki.issn0439-8114.2024.08.030
    Abstract190)      PDF (12625KB)(39)       Save
    In order to build a real-time monitoring system of crop environmental information and realize intelligent management of crop growth, an intelligent agricultural monitoring and management system was constructed. Firstly, based on the Internet of Things technology, the intelligent agricultural monitoring and management system was built with STM32 as the control core from three dimensions of perception layer, transmission layer and application layer. The environmental data such as environmental temperature and humidity, soil temperature and humidity, light intensity and air quality, etc, were collected through sensors, and transmitted to the server using a wireless module to achieve monitoring and remote control of environmental factors. Secondly, the image processing algorithm and SVM model based on OpenCV database were used to classify and recognize crop disease images. Finally, the upper computer UI interface was designed based on the QT platform. Through experimental tests, the system was accurate and reliable in information transmission and equipment control. The average accuracy rate of the system for disease image classification was 96.3%, and the accuracy rate of pomegranate brown spot recognition was the highest, reaching 97.4%.
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    A lightweight deep learning network RepYOLO for embedded devices
    ZHOU Gan-wei, CHEN Jia-yue, WU Jia-wei, ZHAO Ya-qi, ZHAO Yi-kai, ZHANG Xiao-ying
    HUBEI AGRICULTURAL SCIENCES    2024, 63 (8): 153-157.   DOI: 10.14088/j.cnki.issn0439-8114.2024.08.026
    Abstract185)      PDF (7982KB)(23)       Save
    A lightweight deep learning network model RepYOLO algorithm was proposed and transplanted to embedded device MCU/MPU. The network model RepYOLO took YOLOv4 as the base network model. By modifying YOLOv4’s backbone network CSPDarkNet to the RepBlock structure, introducing the CBAM attention mechanism in the Neck layer, and replacing the anchor-based detection head with an anchor-free detection head in the head layer along with integrating the ATSS algorithm, the computational load was reduced, and both inference speed and detection accuracy were improved. The experimental results showed that compared with the original YOLOv4 model, the network model RepYOLO showed more significant advantages in wheat spike detection, and its precision rate, recall rate, F1 value and average precision value were increased by 4.7, 3.6, 1.5 and 1.7 percentage points, respectively. In addition, RepYOLO reduced inference time on embedded devices MCU/MPU by 37.03% and 41.44%, respectively.
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