Sıcaklık Nem Endeksi (SNI) Kullanılarak Arduino Tabanlı Düşük Maliyetli Bir Klima Otomasyon Cihazının Tasarımı

Year 2020, Volume: 7 Issue: 3, 654 - 662, 20.07.2020

Ünal Kızıl , Sefa Aksu , A. Cumhur Kınacı , Doğa Barış Özdemir , Levent Genç

https://doi.org/10.30910/turkjans.694653

Abstract

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 megabayt’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<83) alt sınırlarının altında 80 Simental süt sığırının literatürde doğrulandığı şekilde ısı stresinden çok fazla etkilenmediği tespit edilmiştir.

Keywords

Arduino, çevre denetimi, ısı stresi, otomasyon, sıcaklık nem indeksi

Supporting Institution

Çanakkale Onsekiz Mart Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi (BAP)

Project Number

FHD-2018-2498

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

Abstract

Welfare and production efficiency of livestock, especially dairy cattle, in a barn are closely related with environmental factors such as temperature, humidity, etc. Therefore, the aim of this study is to design a low-cost automation device that is based on Temperature Humidity Index (THI). An Arduino microprocessor and associated sensors/electronics were used to design a prototype. The device collects process and stores minutely temperature, humidity and THI for automation and long term management purposes. It is capable of estimating and storing theoretical daily reduction in milk production. Average actual daily milk production can also be entered to the system. The cost of the prototype 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. Total of 1.4 megabyte of capacity is required for data storage. That makes the system affordable and easy to manage data. The device is installed on a post in the middle of barn. It is found that below the lower limits of mild heat stress category (THI<83) total of 80 Simmental milking cows were not influenced from heat stress as confirmed by literature. Therefore, it is essential to monitor stress conditions and milk production rate for longer periods in order to better manage the cows’ environmental conditions.

Keywords

Heat stress, temperature humidity index, Arduino, automation, environmental control

Project Number

FHD-2018-2498

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