Remote desktop system in IoT and HTML 5-based virtual laboratory for HMI (Human Machine Interface) practicum and hydraulic simulation

A virtual laboratory is a facility that allows access to laboratory equipment from anywhere and anytime while connected to the internet. Remote desktop systems are the basis of the development of a virtual laboratory where users can access hardware connected to the lab computer from anywhere with the agreed time. The virtual laboratory can overcome the problem of the imbalance of the number of tools available in the lab with the number of students who will do the practicum, especially the PLC, HMI, and hydraulic simulation. For accessing the lab computer, this tool uses web-based HTML and VNC (Virtual Network Computing) techniques. On the server computer, the ThinVNC server is installed, and the user, password, and port are set. ThinVNC functions as a tool that makes it easy for users to access the lab because it merely provides a web browser that supports HTML 5 such as chrome, firefox, and edge without having to install any browser plugins and does not need to install RDP, so tablet or smartphone can access the lab. When it is connected, the user can access the available lab equipment and can see the results made because there are cameras that monitor the course of the practicum.