Towards Integration of Heterogeneous Controllers in an IOT-based Automation System

Heterogeneous controllers (such as: various brands of PLCs and microcontrollers), are existed in an automated system. This research propose a framework to integrate them by using NodeRed, an open source project to gather various devices and services in an IOT setting. The research framework was applied successfully in three cases: a smart home prototype for elderly, a smart door using face recognition method, and an automated system for multiple houses in separated locations.