亚洲一区欧美在线,日韩欧美视频免费观看,色戒的三场床戏分别是在几段,欧美日韩国产在线人成

哺乳母豬高危動(dòng)作識(shí)別方法研究
作者:
作者單位:

作者簡介:

通訊作者:

中圖分類號(hào):

基金項(xiàng)目:

公益性行業(yè)(農(nóng)業(yè))科研專項(xiàng)資金項(xiàng)目(201003011)、中央高?;究蒲袠I(yè)務(wù)費(fèi)專項(xiàng)資金項(xiàng)目(KYZ201561)、黑龍江省青年科學(xué)基金項(xiàng)目(QC2014C078、QC2013C065)、江蘇省產(chǎn)學(xué)研合作前瞻性聯(lián)合創(chuàng)新資金項(xiàng)目(BY2015071-06)和黑龍江農(nóng)墾總局“十二五”重點(diǎn)科技計(jì)劃項(xiàng)目(HNK125B-04-06)


Research on Recognition Method of Lactating Sows’ Dangerous Body Movement
Author:
Affiliation:

Fund Project:

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

    哺乳母豬從站立、坐立轉(zhuǎn)為趴臥的高危動(dòng)作是導(dǎo)致斷奶前仔豬死亡的主要原因,動(dòng)作發(fā)生頻率及變換方式?jīng)Q定了母豬的母性指數(shù)。以江蘇省農(nóng)林職業(yè)技術(shù)學(xué)院小梅山原種豬場飼養(yǎng)的小梅山母豬為研究對(duì)象,利用MPU6050傳感器采集母豬哺乳期內(nèi)10d的三軸加速度數(shù)據(jù),采用直方圖統(tǒng)計(jì)法設(shè)置運(yùn)動(dòng)能量閾值,快速定位高危動(dòng)作區(qū)間,以高危動(dòng)作發(fā)生前后的身體姿態(tài)為特征,構(gòu)建動(dòng)作分類器,識(shí)別高危動(dòng)作的類型。實(shí)驗(yàn)結(jié)果表明,對(duì)高危動(dòng)作區(qū)間的標(biāo)注準(zhǔn)確率為77.4%,基于姿態(tài)的動(dòng)作類型識(shí)別方法糾正了因仔豬碰撞節(jié)點(diǎn)產(chǎn)生的誤標(biāo),識(shí)別準(zhǔn)確率達(dá)到81.7%。利用2種俯臥姿態(tài)計(jì)算母豬的俯臥指數(shù)可為實(shí)現(xiàn)母性能力科學(xué)評(píng)價(jià)及育種提供數(shù)據(jù)依據(jù)。

    Abstract:

    The dangerous body movements(DBM) of lactating sows, such as the change from standing, sitting to lying, is a major cause for the death of pre-weaning piglets. Although, the utilities of farrowing crate and anti-crushing rail will effectively reduce the mortality caused by the DBM of lactating sows, there are still significant differences for the mortality of piglets in the same breeding environment, therefore, the difference maternal ability of individual sow will play an important role. The maternal index of sow was determined by the changing frequencies and types of these DBM. Five lactating sows of Xiao Meishan which were bred in the farm of Jiangsu Polytechnic College of Agriculture and Forestry were used in this study. Firstly, a set of monitoring node with MPU6050 and bluetooth module was tighten on the neck of a sow to collect the three-axis acceleration data during 10 d. Then, the histogram method was used to compute the threshold of the kinetic energy in order to locate the area of a DBM quickly. Finally, a classifier to identify the type of the DBM was built according to the characteristics of the body postures occurred in pre- or pro-DBM. The results showed that the accuracy of for marking DBM area for 327 samples was 77.4%,while the accuracy of DBM recognition was 81.7%. The main reason for the different accuracy mentioned above is that the errors caused by piglet crashing the node were corrected by the recognition algorithm of posture. Thus, the bend index of a lactating sow can be calculated further more and the data basis for the scientific evaluation of maternal ability in the breeding sow will be provided.

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

閆麗,沈明霞,謝秋菊,劉龍申,陸明洲,劉桂陽.哺乳母豬高危動(dòng)作識(shí)別方法研究[J].農(nóng)業(yè)機(jī)械學(xué)報(bào),2016,47(1):266-272. Yan Li, Shen Mingxia, Xie Qiuju, Liu Longshen, Lu Mingzhou, Liu Guiyang. Research on Recognition Method of Lactating Sows’ Dangerous Body Movement[J]. Transactions of the Chinese Society for Agricultural Machinery,2016,47(1):266-272.

復(fù)制
分享
文章指標(biāo)
  • 點(diǎn)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:2015-07-02
  • 最后修改日期:
  • 錄用日期:
  • 在線發(fā)布日期: 2016-01-10
  • 出版日期: 2016-01-10
文章二維碼