Desarrollo de aplicaciones de supervisión industrial de código abierto para el laboratorio de redes industriales : diseño e implementación de un prototipo de gateway IoT industrial para adquisición de datos y su monitoreo desde un navegador web.

Abstract

Nowadays, many industries have begun to use different devices that enable the integration of industrial process data, allowing to incorporate manufacturing processes into an Industry 4.0 scheme, one of the enabling technologies corresponds to the internet of things that consists in the networking of electronics systems that acquire data from sensors and actuators embedded in machines and other physical objects. At the center of the internet of things is the gateway, which is a device in charge of providing connectivity between things and computer networks. In this regard, the present work involves the development of an IIoT Gateway to acquire data from industrial devices and through standard digital or analog inputs and outputs. The prototype provides bi-directional interaction with a remote station through Modbus RTU serial communications protocol under RS-485 interface. The implementation is based on an Arduino UNO board that incorporates an Ethernet module. The necessary functions are implemented in this board to establish communication and allow data management in higher layers under the MQTT protocol. A complementary monitoring interface was also developed using Node-RED. Several features were integrated within this interface, which includes an organized data displaying, real-time charts generation, and alarms that can be set and visualized based on the values of certain variables obtained through the developed gateway. The prototype and interface were tested to validate their operation and performance. The gateway is based on low-cost technologies and allows the integration of multiple protocols and industrial devices for possible future projects.