ass日本风韵熟妇pics男人扒开女人屁屁桶到爽|扒开胸露出奶头亲吻视频|邻居少妇的诱惑|人人妻在线播放|日日摸夜夜摸狠狠摸婷婷|制服 丝袜 人妻|激情熟妇中文字幕|看黄色欧美特一级|日本av人妻系列|高潮对白av,丰满岳妇乱熟妇之荡,日本丰满熟妇乱又伦,日韩欧美一区二区三区在线

基于時空耦合的玉米播種位置預測系統(tǒng)設計與試驗
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:

國家重點研發(fā)計劃項目(2024YFD1500405)


Design and Test of Maize Sowing Position Prediction System Based on Spatial Temporal Coupling
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 圖/表
  • |
  • 訪問統(tǒng)計
  • |
  • 參考文獻
  • |
  • 相似文獻
  • |
  • 引證文獻
  • |
  • 資源附件
  • |
  • 文章評論
    摘要:

    針對玉米播種環(huán)節(jié)設計了一種基于時空耦合的玉米播種位置預測系統(tǒng)。該系統(tǒng)集成對射式紅外光電傳感器、GNSS-RTK高精度定位模塊及數(shù)據(jù)傳輸單元,通過實時監(jiān)測種子下落信號,結(jié)合播種機航向、速度與時空滯后補償模型,預測種子落地空間位置,最終將數(shù)據(jù)上傳云端。系統(tǒng)采用STM32F103單片機作為中樞控制器,構(gòu)建分段式空間位置換算模型解決播種機主天線與紅外傳感器間的偏移問題;引入時空滯后補償模型,測量得種子下落延時、定位信息傳輸延時及程序執(zhí)行延時分別為107.7、50、39.5ms,最終修正播種機前進方向位移偏差;通過制定不同區(qū)間對經(jīng)緯度偏差正負值的方向響應規(guī)則,明確耦合預測模型最終形態(tài)。田間試驗結(jié)果表明,系統(tǒng)預測種子落地位置與實際位置平均偏差為36.86mm,標準差為3.57mm,變異系數(shù)為9.69%,驗證了模型有效性。該系統(tǒng)能夠?qū)崿F(xiàn)播種位置數(shù)據(jù)實時記錄與云端存儲,為后續(xù)中耕、施肥等環(huán)節(jié)的精準協(xié)同管理提供參考。

    Abstract:

    A maize sowing position prediction system based on spatial temporal coupling was designed for maize sowing process. The system integrated an opposed infrared photoelectric sensor, a GNSS-RTK high-precision positioning module and a data transmission unit to predict the spatial position of seed landing by real-time monitoring of seed falling signals and combining the sowing machine heading, speed and spatial-temporal lag compensation model, and data would eventually be uploaded to the cloud. The system adopted STM32F103 microcontroller as the central controller, and a segmented spatial position conversion model was constructed to solve the offset problem between the main antenna of the planter and the infrared sensors; the spatial temporal hysteresis compensation model was introduced, and the seed falling delay, the localization information transmission delay, and the program execution delay were measured to be 107.7ms, 50ms, and 39.5ms, respectively, and finally the position deviation of the planter’s forward direction was corrected. The final shape of the coupled prediction model was clarified by formulating the directional response rules for the positive and negative values of latitude and longitude deviations in different intervals. The results of the field test showed that the average deviation of the seed landing position predicted by the system from the actual position was 36.86mm, with a standard deviation of 3.57mm and a coefficient of variation of 9.69%, which verified the effectiveness of the model. The system was capable of real-time recording and cloud storage of seeding position data, providing a reference for the subsequent precise and collaborative management of mid-tillage and fertilization.

    參考文獻
    相似文獻
    引證文獻
引用本文

賈麟,馬飛揚,徐征鑫,張馨悅,徐子楊,王超,王慶杰,李洪文.基于時空耦合的玉米播種位置預測系統(tǒng)設計與試驗[J].農(nóng)業(yè)機械學報,2025,56(6):146-154. JIA Lin, MA Feiyang, XU Zhengxin, ZHANG Xinyue, XU Ziyang, WANG Chao, WANG Qingjie, LI Hongwen. Design and Test of Maize Sowing Position Prediction System Based on Spatial Temporal Coupling[J]. Transactions of the Chinese Society for Agricultural Machinery,2025,56(6):146-154.

復制
相關視頻

分享
文章指標
  • 點擊次數(shù):
  • 下載次數(shù):
  • HTML閱讀次數(shù):
  • 引用次數(shù):
歷史
  • 收稿日期:2025-05-01
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2025-06-10
  • 出版日期:
文章二維碼