Luas tanaman jeruk dilaporkan mengalami penurunan di beberapa daerah. Hal tersebut disebabkan oleh beberapa hal, diantaranya serangan penyakit dan kurangnya perawatan. Badan Pusat Statistik (BPS) hanya menyediakan data luasan produksi saja sehingga informasi tentang luasan tanaman yang sakit belum ada. Pemantauan kondisi tanaman dapat menggunakan penginderaan jauh. Penelitian ini bertujuan untuk mengembangkan metode penginderaan jauh dengan drone untuk mendeteksi kesehatan tanaman jeruk. Lokasi percobaan dilakukan di Banyuwangi dengan menggunakan drone phantom 4 dengan kamera RGB. Hasil foto dianalisa menggunakan software agisoft photoscan dalam beberapa tahap, yaitu: align photos, build dense cloud, build digital elevation model, build orthomosaic dan export geotiff. Ratusan foto akan menjadi satu kesatuan gambar dengan proses tersebut. Hasil proses gambar tersebut kemudian di analisa di software QGIS dengan metode Supervised Classification. Percobaan dilakukan pada tanaman muda dan dewasa. Dengan metode tersebut klasifikasi kesehatan tanaman jeruk dewasa dapat dibagi menjadi tiga, yaitu : sehat, sakit dan mati. Hasil ini kemungkinan bias lebih sedikit dibandingkan pada tanaman muda.
Therefore, a tool is needed to make it easier for researchers, so there is no need to go back and forth to retrieve data. This research has the following research method stages, (1) literature study of theories to design the system from the tools to be made, (2) system design, (3) analysis of device requirements, (4) tool calibration process (data can be said to be valid if the error does not exceed one per cent), and (5) data processing is according to agricultural research needs. In this research, a tool that has calibrated with an appropriate measuring instrument produced. Measuring temperature, humidity, and light intensity designed with a microcontroller and other sensors with a data storage base on an SD card. The measuring results show that the temperature values fluctuate between 16.9 °C to 28.2 °C. The value of air humidity tends to remain at the value of 99.9 per cent. At the same time, the value of light intensity ranges from 332 to 606 Cd. The relative error of temperature, humidity, and light intensity is 0.007, 0.082, and 0.016 per cent respectively. Therefore, each measurement indicator has a relative error value of less than one per cent so that the designed tool has valid and under the standardized measuring instrument.
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