Ünal KIZIL, Sefa AKSU, Ahmet Cumhur KINACI, Doğa Barış ÖZDEMİR

Sıcaklık Nem İndeksi (SNİ) Kullanılarak Büyükbaş Hayvan Barınakları İçin Arduino Tabanlı Düşük Maliyetli Bir Klima Otomasyon Cihazının Tasarımı

Çiftlik hayvanlarının, özellikle de süt sığırlarının bir ahırda refah ve üretim verimliliği, sıcaklık, nem gibi çevresel faktörlerle yakından ilişkilidir. Bu nedenle, çalışmanın amacı, sıcaklık nem indeksine (SNİ) dayanan düşük maliyetli bir otomasyon cihazı tasarlamaktır. Bir prototip tasarlamak için Arduino mikroişlemci ve uyumlu sensörler/elektronik malzemeler kullanıldı. Cihaz, otomasyon ve uzun vadeli yönetimsel amaçlar için dakikalık olarak sıcaklık, nem ve SNİ verilerini işleyebilmekte ve depoyabilmektedir. Cihaz, süt üretiminde teorik günlük azalmayı tahmin edebilir ve saklayabilir özelliklerdedir. Ortalama gerçek günlük süt üretimi de sisteme girilebilmektedir. Prototipin maliyeti 238$ olup düşük gelirli işletmeler için ekonomiktir. Veriler prototip performansını test etmek için 6 aylık bir süre boyunca toplanmıştır. Toplanan veriler için toplam 1.4 MB’lık küçük bir depolama kapasitesine gerek duyulmuştur. Bu ise, sistemin ekonomik ve verileri yönetimini kolay hale getirmiştir. Cihaz, ahırın ortasındaki bir direğe monte edilmiştir. Hafif ısı stresi kategorisinin (SNİ

Design of an Arduino Based Low-Cost Air Conditioning Automation Device for Bovine Barns Using Temperature Humidity Index (THI)

Welfare and production efficiency of livestock, especially dairy cattle, in a barn are closely relatedwith environmental factors such as temperature, humidity, etc. Therefore, the aim of this study is todesign a low-cost automation device that is based on Temperature Humidity Index (THI). An Arduinomicroprocessor and associated sensors/electronics were used to design a prototype. The device collects,process and stores temperature, humidity and THI data in a minute interval for automation and longterm management purposes. It is capable of estimating and storing theoretical daily reduction in milkproduction. Average actual daily milk production can also be entered to the system. The cost of theprototype was $ 238 that makes it affordable for low-income operations. Data was collected for a 6-month-period to test the performance of the prototype. Totally 1.4 megabyte of capacity is required fordata storage. That makes the system affordable and easy to manage the data. The device was installedon a post in the middle of barn. It is found that below the lower limits of mild heat stress category(THI

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