Perancangan dan Implementasi Sistem Pemantauan Ketinggian Air di Ruang Ground Tank PT. Angkasa Pura II (Persero) Menggunakan Platform Internet-of-Things
Keywords:
aplikasi blynk, internet-of-things, ketinggian air, Node MCU ESP8266, sensor ultrasonik HCSR04.Abstract
Pada musim hujan, curah hujan yang relatif tinggi mengakibatkan peningkatan volume air permukaan yang dapat menyebabkan banjir di area tertentu. Salah satunya adalah ruangan ground tank di PT. Angkasa Pura II tempat menyimpan bahan bakar solar yang diperlukan untuk mengoperasikan generator. Permasalahan yang terdapat disana adalah tidak adanya sistem untuk mengetahui ketinggian luapan air ketika terjadi curah hujan yang tinggi. Untuk mengantisipasi permasalahan tersebut diperlukan sistem pemantauan ketinggian air. Sistem pemantau ketinggian air ini menggunakan sensor ultrasonik tipe HC-SR04 sebagai pengukur ketinggian air yang diletakkan di dalam pipa dengan panjang 1 meter. Pipa tersebut disimpan di dekat pompa distribusi. Sistem dibangun menggunakan ESP8266 NodeMCU sebagai pemroses sinyal dan LCD 204 untuk menampilkan nilai yang terbaca pada sensor. Pemantauan ketinggian air dapat dilakukan dari jarak jauh dengan menggunakan platform internet-of-things yaitu aplikasi Blynk yang diinstalasi dalam telepon genggam. Sistem dilengkapi dengan alarm sebagai
peringatan tambahan apabila ketinggian air sudah mencapai lebih dari 80 cm. Hasil pengujian menunjukkan data ketinggian air dapat dipantau setiap saat melalui telepon genggam yang diinstalasi aplikasi Blynk. Nilai rata-rata akurasi pada sensor 1 sebesar 99,10% dan pada sensor 2 adalah 98,79%.
In the rainy season, a high rainfall tends to increase the volume of surface water which can cause flooding in certain areas. One of them is the ground tank room at PT. Angkasa Pura II. It is a place to store the diesel fuel needed to operate the generator. So far, there is no system to determine the height of the overflow when there is high rainfall. To anticipate these problems, a water level monitoring system is needed. This water level monitoring system uses an ultrasonic sensor type HC-SR04 as a water level sensor which is placed in a 1 meter long pipe. The pipe is stored near the distribution pump. The system is built using the ESP8266 NodeMCU as a signal processor and a 20x4 LCD to display the value read on the sensor. Water level monitoring can be done remotely using the internet-of-things platform, namely the Blynk application installed on a mobile phone. The system is equipped with an alarm as an additional warning if the water level has reached more than 80 cm. Experimental results show that water level data
can be monitored at any time via a mobile phone with the Blynk application installed. The average value of accuracy on sensor 1 is 99.10% and on sensor 2 is 98.79%
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