Sitem sirkulasi air akuarium secara otomatis menggunakan finite state machine = Automatic aquarium water circulation system using finite state machine

Raintung, Keren Angelia (2019) Sitem sirkulasi air akuarium secara otomatis menggunakan finite state machine = Automatic aquarium water circulation system using finite state machine. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Keseimbangan ekosistem akuarium sangat penting untuk dijaga agar biota dan abiota yang hidup di dalamnya tetap sehat. Kualitas air merupakan salah satu cara untuk menjaga keseimbangan ekosistem akuarium dengan rutin mengganti air. Akan tetapi, sebagian pemilik akuarium mengalami kesulitan dalam mengingat kapan air akuarium harus diganti dan melakukan pergantian air secara manual sehingga membutuhkan tenaga dan waktu yang lebih banyak. Oleh karena itu, peneliti membangun sistem kontrol sirkulasi air otomatis berdasarkan nilai tingkat kekeruhan dan tinggi air. Untuk membuat sistem sirkulasi tersebut digunakan sensor Turbidity untuk menentukan tingkat kekeruhan pada air dan sensor Water Level untuk mengukur tinggi air akuarium. Data pada kedua sensor kemudian dikirimkan ke mikrokontroler Lolin NodeMCU untuk menentukan kapan sirkulasi air dilakukan. Penetuan sirkulasi air menggunakan metode Finite State Machine berdasarkan kondisi saat air keruh, air tidak keruh, air berkurang dan air penuh. Untuk memonitor tingkat kekeruhan dan tinggi air secara online digunakan Blynk App. Pengujian sistem sirkulasi dilakukan selama 2 bulan dengan menggunakan akuarium berukuran panjang 60 cm, lebar 30 cm, dan tinggi 35 cm, ketinggian air 30 cm, total volume air sebanyak 54 Liter, 5 ekor ikan jenis oranda dan pemberian makan ikan 2 kali sehari yaitu, pagi dan malam hari. Sistem melakukan proses sirkulasi air sebanyak 2 sampai 3 kali per minggu terutama pada hari ke 5 dan 7 dengan jumlah air yang keluar setinggi 2 cm, dan sebanyak 3.6 Liter atau 6.6%. Ketika proses sirkulasi dilakukan, sisa air pada akuarium sebanyak 50.4 Liter atau 93.3%. Sistem sirkulasi air akuarium, dapat berjalan dengan baik dan Blynk App dapat menampilkan data dari sensor, akan tetapi, jaringan Wi-Fi dari mikrokontroler Lolin NodeMCU ke Blynk App sering terputus sehingga pengambilan data menjadi kurang tepat. / The balance of the aquarium ecosystem is very important to be maintained so that the biota and abiota that live in it stay healthy. Water quality is one way to maintain the balance of the aquarium ecosystem by routinely replacing water. However, some aquarium owners have difficulty in remembering when aquarium water must be replaced and doing water changes manually so that it requires more energy and time. Therefore, researchers built an automatic water circulation control system based on turbidity and water level values. To make the circulation system, Turbidity sensor is used to determine the level of turbidity in water and Water Level sensor to measure the height of aquarium water. Data on both sensors are then sent to the Lolin NodeMCU microcontroller to determine when the water circulation is carried out. Determination of water circulation using the Finite State Machine method based on conditions when turbid water, non-turbid water, reduced water and full water. To monitor online turbidity and water levels, the Blynk App is used. Circulation system testing was carried out for 2 months using an aquarium measuring 60 cm long, 30 cm wide, and 35 cm high, 30 cm water height, 54 liters of total water volume, 5 oranda fish and feeding 2 times a day ie, morning and night. The system processes the water circulation as much as 2 to 3 times per week, especially on days 5 and 7 with the amount of water coming out as high as 2 cm, and as much as 3.6 Liters or 6.6%. When the circulation process is carried out, the remaining water in the aquarium is 50.4 Liters or 93.3%. The aquarium water circulation system can run well and the Blynk App can display data from sensors, however, the Wi-Fi network from the Lolin NodeMCU microcontroller to the Blynk App is often interrupted so data collection becomes less precise.

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