Desenvolvimento de laboratório remoto para bancada eletropneumática didática

Abstract

The evolution of technology and the growing use of Internet by more people creates possibilities for remote applications, controlled throughWeb. Thus, remote laboratories become a reality that assists academics in the competitiveness of market and open the possibility of access to experiments by more and more students. Therefore the development of given application has countless advantages in several levels and promotes the personal and professional development. The question as to the applicability of this given concept is in the communication of the network formed among all the devices. From the SCADA system controlled plant, the server that sends data to the client and the user, all devices must have a way of understand each other and ensure the success in data exchange. This web development of the communication and creation of client and server is what makes the remote laboratory functional and allows that practical experiments to be performed anywhere, anytime. To make the project work, the user must program the actions of a PLC and send the programming archive to a bench (the laboratory plant), which is made through a website with a server and pages created with HTML and JavaScript. Aiming at applicability of these concepts and the facility for developers, several tools were created, one of those being an asynchronous interpreter of JavaScript called “Node.js” that opens ways of transformming complex projects into simple ones, allowing actions which before took a lot of time or weren’t possible with that language. The creation of pages with HTML and JavaScript, the server actions using “Node.js” and the communication of the server with the PLC using a library that control the mouse and keyboard of the server combined make the remote laboratory functional and support the graduation of students, both in making academic works and instructing them to look at the future on new technologies.