IOT TEMELLİ DEPREM UYARI SİSTEMİ GELİŞTİRİLMESİ VE DEĞERLENDİRİLMESİ

Öz

Bu çalışmada, yıkıcı olmayan öncül depremleri algılayacak düşük maliyetli bir deprem uyarı sistemi geliştirilmiştir. Geliştirilen sistem nesnelerin bir biriyle haberleştiği örnek bir IOT uygulamasıdır. Sistem de mikro denetleyici olarak arduino mega kullanılmıştır. Deprem uyarı sisteminin geliştirilme amacı deprem anında depremin başladığına ve bittiğine dair bilgiyi tweet olarak twitter’da duyurmak ve ortamdaki kişiler için sesli uyarı vermektir. Deprem anındaki titreşimleri algılamak için IMU ve piezo titreşim sensörleri kullanılmıştır. Ayrıca sistemin internete bağlanabilmesi için ESP8266 wifi modülü sisteme dahil edilmiştir. Sistem depremi algılayabilmek için IMU ve titreşim sensöründen gelen bilgileri değerlendirmektedir. IMU sensörü için x ve y olmak üzere iki eksendeki bilgiler değerlendirilmektedir. x veya y eksenindeki değişim 10 değerinden büyük ya da eşit ise ya da titreşim sensöründen gelen veri 694 değerinden büyük ise deprem uyarı sistemi tetiklenmektedir. Bu tetiklenme sonucunda wifi modül vasıtasıyla internete bağlanılarak depremin başladığına dair tweet atılmakta ve lokal olarak sesli uyarı verilmektedir. Sistemin tweet atma işlemini gerçekleştirmesi için ThingSpeak IoT analytics platform kullanılmaktadır. Sistem tetiklendiğinde gerekli bilgiler ThingSpeak platformuna gönderilmekte ve bu platform vasıtasıyla tweet atılması sağlanmaktadır. Ayrıca sistemin hassasiyeti eşik değerleri değiştirilerek ayarlanabilmektedir. Gerçek zamanlı çalışma sonuçlarına göre, geliştirilen sistemin depremi başarılı ve hassas bir şekilde algılayıp sesli olarak ve tweet atarak uyarı verdiği tespit edilmiştir.

Anahtar Kelimeler

• Arduino,Deprem Uyarı sistemi,Wi-Fi,IoT,Nesnelerin Interneti

IOT-BASED EARTHQUAKE WARNING SYSTEM DEVELOPMENT AND EVALUATION

Öz

In this study a low cost earthquake warning system has been developed that will detect non-destructive foreshocks. The developed system is an IOT application where objects communicate with each other. Arduino mega was used as the micro controller in the system. The purpose of developing earthquake warning system is to announce the information about the beginning and end of the earthquake at the instant of earthquake as a tweet in tweeter and to give audible alert for the persons in the environment. IMU and piezo vibration sensors were used to detect the vibrations at the moment of the earthquake. Also, ESP8266 Wi-Fi module was included in the system for the system to connect to the internet. The system evaluates the data from IMU and vibration sensors to detect the earthquake. For IMU sensor, data is evaluated in two axes; namely x and y. ıf the change in x- or y-axis is equal to or greater than 10 or the data from vibration sensor is greater than 694 then the earthquake warning system is triggered. As a result of this triggering the system connects to internet via Wi-Fi module, a tweet is sent to inform that the earthquake has started and audible alert is given locally. ThingSpeak IoT analytics platform is used for the system top send tweet. When the system is triggered, necessary data is sent to the ThingSpeak platform and tweet is sent through this platform. Also, system’s sensitivity threshold values can be changed and adjusted. According to the results of real-time operation, it has been determined that the developed system can detect the earthquake successfully and sensitively and provide audible alert and send tweet for warning.

Anahtar Kelimeler

• Arduino,IoT,Earthquake Warning System,Wi-Fi,Internet of things

Kaynakça

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