Nesnelerin İnternetinde, iletişim başarımını etkileyen önemli faktörlerden biri kullanılacak olan mesajlaşma protokolüdür. MQTT, XMPP ve AMQP merkezi yapıda ve sunucu aracılığıyla haberleşen uygulama protokolleridir. DDS ve CoAP ise özellikle gerçek zamanlı uygulamalarda doğrudan iletişim için kullanılan uygulama protokolleridir. Nesnelerin İnternetinin giderek yaygınlaşması ve kullanım senaryolarının farklı gereksinimlere sahip olması, veri iletişiminde yeni yaklaşımların geliştirilmesini gerekli kılmaktadır. Bu çalışmada hem merkezi sunucu aracılığıyla hem de doğrudan iletişim sağlayabilen UDP tabanlı hibrit bir protokol tasarlanmıştır. Geliştirilen protokolün çalışma mantığı, paket yapısı ele alınmış ve işlevsellik yönünden MQTT protokolü ile karşılaştırılmıştır.
Today, solutions developed with the Internet of Things have started to find more and more application areas to make human life easier. Internet of Things solutions, which include many different types of new technologies, will be very useful to use simulation tools before prototyping for the most appropriate technology selection. In this study, IoT-based smart home design applications have been developed and analyzed. In this context, 3 different scenarios have been developed for smart home automation system design in the Cisco Packet Tracer simulation environment, and the use of tools has been demonstrated with examples according to different scenarios.
One of the important factors affecting communication performance in the Internet of Things is the messaging protocol. MQTT, XMPP and AMQP are centralized application protocols that communicate through the server. DDS and CoAP are application protocols that can communicate directly, especially in real-time applications. As the Internet of Things is becoming more widespread and usage scenarios have different requirements, new approaches to data communication are required. In this study, a UDP based hybrid application layer protocol has been designed which can communicate both directly and through central server. In addition, operating logic and packet structure of the developed hybrid protocol is examined.
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