?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=RANCANG+BANGUN+SENSOR+KELENGASAN+DAN+SUHU+TANAH+%0D%0ABERBASIS+JARINGAN+SYARAF+TIRUAN&rft.creator=Nur+Rahma+Safitri%2C+1514071044&rft.subject=630+Pertanian+dan+teknologi+yang+berkaitan&rft.description=Kelengasan+tanah+memegang+peranan+penting+dalam+pertumbuhan+maupun+%0D%0Aperkembangan+tanaman.+Peran+kelengasan+tanah+yang+sangat+penting+inilah+%0D%0Amenjadikan+ketersediaan+air+menjadi+salah+satu+faktor+yang+mempengaruhi+hasil+%0D%0Aproduksi+tanaman.+Akan+tetapi%2C+untuk+mengukur+kelengasan+tanah+ini+dibutuhkan+%0D%0Awaktu+yang+relatif+lama+dan+biaya+yang+relatif+mahal.+Diperlukannya+terobosan%0D%0Ateknologi+untuk+mengatasinya.+Teknologi+yang+dapat+digunakan+ialah+dengan+%0D%0Amenggunakan+sensor+lengas+tanah+yang+dirancang+dengan+menggunakan+prinsip%0D%0AJaringan+Syaraf+Tiruan+(JST)+untuk+mendapatkan+model+matematika+yang+nantinya+%0D%0Aakan+diintegrasikan+ke+dalam+mikrokontroler.+Dengan+demikian%2C+pengukuran+di+lapang+%0D%0A(in+situ)+dengan+segera+dapat+diketahui.+%0D%0ATujuan+umum+dari+penelitian+ini+ialah+merancang+alat+pengukuran+kelengasan+tanah+%0D%0Aberdasarkan+Jaringan+Syaraf+Tiruan+(JST)+dengan+tiga+parameter+yaitu+suhu+tanah%2C+%0D%0Aresistensi%2C+dan+kedalaman+probe+(dua+elektroda).+Tujuan+khusus+dari+penelitian+ini+%0D%0Auntuk+mendapatkan+model+matematika+untuk+sensor+kelengasan+tanah+berdasarkan+%0D%0AJaringan+Syaraf+Tiruan+(JST).+Penelitian+in+dilakukan+pada+bulan+Maret+hingga+Juli+%0D%0A2019+di+Laboratorium+Rekayasa+Sumber+Daya+Air+dan+Lahan%2C+Jurusan+Teknik+%0D%0APertanian%2C+Universitas+Lampung%0D%0ABerdasarkan+penelitian+yang+dilakukan+telah+telah+dihasilkan+model+matematika+yang+%0D%0Amendapatkan+nilai+RMSE+dan+koefesien+determinasi+(R2%0D%0A)+sebesar+1%2C0366+dan+0%2C9923+%0D%0Adengan+fungsi+aktifasi+yang+memiliki+hasil+terbaik+ialah+logsig-logsig-logsig.+Alat+%0D%0Ayang+telah+di+uji+coba+menghasilkan+error+yang+sangat+kecil+yaitu+dengan+RRMSE+%0D%0Asebesar+9%2C55+%25+(0%2C0955)+dan+RMSE+sebesar+3%2C99605434.+%0D%0AKata+kunci%3A+Jaringan+Syaraf+Tiruan%2C+Lengas+Tanah%2C+Rancangan+Alat%2C+Suhu+Tanah.%0D%0ASoil+moisture+plays+an+important+role+in+plant+growth+and+development.+The+role+of+soil+%0D%0Amoisture+is+very+important%2C+making+the+availability+of+water+one+of+the+factors+that+%0D%0Ainfluence+crop+production.+However%2C+to+measure+this+soil+moisture+requires+a+relatively+%0D%0Along+time+and+relatively+expensive+cost.+The+need+for+technological+breakthroughs+to+%0D%0Aovercome+them.+The+technology+that+can+be+used+is+to+use+a+soil+moisture+sensor+that+is+%0D%0Adesigned+using+the+principle+of+Artificial+Neural+Networks+(ANN)+to+get+a+%0D%0Amathematical+model+that+will+later+be+integrated+into+the+microcontroller.+Thus%2C+%0D%0Ameasurements+in+the+field+(in+situ)+can+immediately+be+known.%0D%0AThe+general+objective+of+this+research+is+to+design+a+soil+moisture+measurement+tool+%0D%0Abased+on+Artificial+Neural+Networks+(ANN)+with+three+parameters+namely+soil+%0D%0Atemperature%2C+resistance%2C+and+probe+depth+(two+electrodes).+The+specific+purpose+of+this+%0D%0Astudy+is+to+obtain+a+mathematical+model+for+soil+moisture+sensor+based+on+Artificial+%0D%0ANeural+Networks+(ANN).+This+research+was+conducted+from+March+to+July+2019+at+the+%0D%0AWater+and+Soil+Engineering+Laboratory%2C+Department+of+Agricultural+Engineering%2C+%0D%0AUniversity+of+Lampung.+%0D%0ABased+on+the+research+conducted%2C+a+mathematical+model+has+been+obtained+that+gets+the+%0D%0ARMSE+value+and+the+coefficient+of+determination+(R2)+of+1.0366+and+0.9923+with+the+%0D%0Aactivation+function+that+has+the+best+results+is+logsig-logsig-logsig.+The+tools+that+have+%0D%0Abeen+tested+produce+a+very+small+error%2C+namely+with+RRMSE+of+9.55%25+(0.0955)+and+%0D%0ARMSE+of+3.99605434.%0D%0AKeywords%3A+Artificial+Neural+Networks%2C+Soil+Moisture%2C+Tool+Design%2C+Soil+Temperature&rft.publisher=FAKULTAS+PERTANIAN&rft.date=2019&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57004%2F1%2FABSTRAK.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57004%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F57004%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=++Nur+Rahma+Safitri%2C+1514071044++(2019)+RANCANG+BANGUN+SENSOR+KELENGASAN+DAN+SUHU+TANAH+BERBASIS+JARINGAN+SYARAF+TIRUAN.++FAKULTAS+PERTANIAN%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F57004%2F