Peb tus neeg laus hauv Virginia Tech tau tshawb fawb seb cov drones tuaj yeem txheeb xyuas cov av noo rau cov chav kawm hauv Lub Tsev Kawm Ntawv ntawm tsob nroj thiab Environmental Sciences xibfwb Kang Xia Kev Saib Xyuas thiab Kev Ntsuam Xyuas Ib puag ncig cov chav kawm.
Matt Darrah, Grady Hesse, thiab Ryan Humphry ntawm cov Tsev Kawm Ntawv ntawm tsob nroj thiab Environmental Sciences tau qhia txog kev ua liaj ua teb precision raws li kev tswj hwm qhov chaw uas cov cuab yeej tshawb fawb tau raug xa tawm mus sau cov av thiab cov qauv hauv av kom niaj hnub txheeb xyuas thaj chaw uas xav tau cov khoom noj ntxiv.
"Peb pom muaj kev ua haujlwm yav dhau los nrog cov drones los saib qhov sib txawv ntawm cov nroj tsuag, tab sis peb tsis pom dab tsi ntawm kev kwv yees cov av noo thiab cov av organic teeb meem," said Hesse, ntawm Berryville, Virginia, ib tug kawm tiav ib puag ncig science. .
Lawv xav paub yog tias qhov no tuaj yeem rov ua dua nrog lub drone.
Darrah, ntawm Las Vegas, Nevada, thiab ib tug kawm tiav kev tshawb fawb ib puag ncig hais tias "Qhov ntawd tuaj yeem yog qhov tsim nyog. "Nyob rau saum nws ua txias rau ya drones, peb xav tias peb tuaj yeem koom nrog hauv kev tshawb fawb txog kev hloov pauv raws li kev kawm tiav."
Txoj kev tshawb no tshawb xyuas Av Kho Cov Zaub Index (SAVI) thiab Normalized Difference Vegetation Index (NDVI) cov ntaub ntawv, ob lub spectral indices rau av, sib sau los ntawm drones los txiav txim seb qhov noo noo ntawm cov av liab qab.
Qhov kev sim kawm qhov project no nws thiaj li muaj ntau yam kev qhuab qhia nyob rau hauv College of Agriculture thiab Life Sciences. Cov kws qhia ntawv koom tes nrog cov tub ntxhais kawm txoj haujlwm suav nrog Song Li, tus kws tshaj lij hauv Tsev Kawm Ntawv ntawm Kev cog qoob loo thiab Environmental Sciences uas tshwj xeeb hauv cov genomics thiab sensor technologies, Sanaz Shafian, tus pab xibfwb hauv Lub Tsev Kawm Ntawv ntawm Kev cog qoob loo thiab Environmental Sciences, Shawn Jadrnicek, tus thawj coj ua liaj ua teb ntawm Virginia Tech's Homefield Farm, thiab Xia. Li, Shafian, thiab Xia yog cov kws qhia ntawv koom nrog Center for Advanced Innovation in Agriculture.
Homefield Farm, kev koom tes ntawm Dining Services thiab Tsev Kawm Qib Siab Kev Ua Liaj Ua Teb thiab Kev Tshawb Fawb Txog Kev Noj Qab Haus Huv thiab tib qho kev ua haujlwm organic uas muaj los ntawm lub tsev kawm ntawv qib siab hauv Virginia, yog qhov chaw ntawm cov tub ntxhais kawm kev tshawb fawb. Lub 50,000-acre, cov tub ntxhais kawm-khiav ua liaj ua teb nyob rau yim mais sab hnub poob ntawm Blacksburg lub tsev kawm ntawv thiab muab txog XNUMX phaus ntawm cov khoom tshiab rau cov chaw noj mov thiab Homefield lub tsev ua liaj ua teb nyob hauv tsev kawm ntawv. Kev ua liaj ua teb yog ib feem ntawm Virginia Tech's College Farm Operation, uas kuj suav nrog Kentland Farm.
Darrah tau hais tias "Nrog txhua qhov kev pabcuam los ntawm cov kws qhia ntawv thiab cov neeg ua haujlwm koom nrog, nws tau ua qhov kev tshawb fawb tseem ceeb rau peb," Darrah tau hais.
Cov tub ntxhais kawm tau txiav txim siab tias yuav tsum muaj kev ua haujlwm ntau ntxiv rau pem hauv ntej no, tshwj xeeb tshaj yog kev txhim kho cov ntsuas kom zoo rau cov av, nrog rau cov av noo. Cov trio pom tias kev sib raug zoo ntawm lawv cov NDVI thiab SAVI cov ntaub ntawv teev tsis tseem ceeb thiab tsis muaj zog txaus rau kev siv txhim khu kev qha.
Thaum kawg ntawm lub semester, cov pab pawg - nrog rau lwm cov tub ntxhais kawm hauv chav kawm - qhia cov txiaj ntsig thiab kev tshawb pom ntawm Zoom. Cov pab pawg tau tham txog lawv cov duab saum toj saud, lawv sib txheeb li cas, thiab ntau ntxiv.
Humphry, ntawm Yorktown, Virginia, kuj yog ib tug kawm tiav ib puag ncig science hais tias "Kuv nyiam ib feem ntawm txoj haujlwm yog thaum peb pom peb cov txiaj ntsig. "Peb pom tias peb yuav ua tau yog nyob rau qee yam thiab tsis ncaj ncees rau lwm tus. Tab sis kuv xav tias nws zoo siab tsuas yog pom qhov peb tuaj yeem ua tiav hauv ib lub semester nkaus xwb thaum muaj kev sib kis. "
- Max Esterhuizen, Virginia Tech University
Matt Darrah, Grady Hesse, thiab Ryan Humphry npaj ya drone ntawm Homefield Farm los ntsuas av noo. Yees duab: Saib xyuas ntawm Darrah, Hesse thiab Humphry