Volume : 4, Issue : 4, MAR 2020
A TIME SYNCHRONIZATION TECHNIQUE FOR MQTT BASED HOME AUTOMATION SYSTEMS
Karthik L, Giridharan N
The advent of internet-of-things (IoT) - based home automation systems, time synchronization techniques for low power sensor modules are in high demand. This technology offers new and exciting opportunities to extend the connectivity of devices within the house for the aim of home automation. Home automation refers to regulate of home appliances using information technology. With the help of rapid expansion of the Internet, there is the potential to control and automate the home appliances. It is achieved by interfacing the internet with embedded systems. This paper deals with the idea of implementing the NodeMCU based interactive home automation system through internet of things in order to synchronize the time. In this project, I will also use the MQTT (Messaging Queuing Telemetry Transport) protocol which is considered a safe and secured protocol. It is an ISO Standard (ISO/IEC PRF 20922) publish-subscribe based messaging protocol. It works on top of TCP-IP protocol. The MQTT option field and a shim header are used to include time-stamps in the home automation system. The proposed scheme can thus be applied to both IP-based and non-IP-based home automation systems.
MQTT, NodeMCU, IoT.
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