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

WSN土壤濕度采集節(jié)點電壓補償方法研究
CSTR:
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號:

基金項目:


Voltage Compensation Method of WSN Soil Moisture Acquisition Nodes
Author:
Affiliation:

Fund Project:

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

    針對適用于WSN土壤濕度采集節(jié)點的EC-5傳感器對電源電壓敏感的問題,，從傳感器工作原理入手分析電源電壓引起檢測誤差的來源,，且發(fā)現(xiàn)當(dāng)傳感器各項參數(shù)確定后，這種誤差隨著被測土壤濕度增大而增大,。采用CC2430芯片作為WSN信息傳輸節(jié)點，建立具有多節(jié)點的上下位機(jī)WSN土壤濕度采集系統(tǒng),，以節(jié)點電壓u和被測土壤實際濕度θ為對象,，運用神經(jīng)網(wǎng)絡(luò)對采集節(jié)點中非線性土壤濕度傳感器系統(tǒng)進(jìn)行逆向建模，在上位機(jī)上實現(xiàn)由電源電壓引起EC-5傳感器檢測誤差的補償,，實驗結(jié)果表明,，該方法能有效地減少節(jié)點電池電壓變化對WSN土壤濕度采集精度的影響。

    Abstract:

    Aimed at the voltage-sensitive problem of EC-5 sensor which was suitable for WSN soil moisture acquisition nodes, the sources of detection error was analyzed according to the sensor working principle. It was found that the error would increase with the soil moisture when sensor parameters were determined. Using CC2430 platform as WSN information transmission node, WSN soil moisture acquisition system with multiple nodes based on controller and host computer was established. Taking node voltage u and the real soil moisture θ as parameters, the inverse modeling of nonlinear soil moisture sensor system was performed by neural network, and the compensation of EC-5 sensor detection error caused by supply voltage was implemented in host computer. Experimental results showed that this method could sharply reduce the influence caused by node voltage variation and improve the detection precision. 

    參考文獻(xiàn)
    相似文獻(xiàn)
    引證文獻(xiàn)
引用本文

張榮標(biāo),余功江,張磊,劉駿,張業(yè)成. WSN土壤濕度采集節(jié)點電壓補償方法研究[J].農(nóng)業(yè)機(jī)械學(xué)報,2010,41(11):178-182. Voltage Compensation Method of WSN Soil Moisture Acquisition Nodes[J]. Transactions of the Chinese Society for Agricultural Machinery,2010,41(11):178-182.

復(fù)制
分享
文章指標(biāo)
  • 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:
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期:
  • 出版日期:
文章二維碼