Virtual Coupled Tanks system (VCT) represents a physical implementation of an industrial liquid level control process where the liquid tanks are emulated by means of LCD screens.
The unit can work in standalone mode, or be controlled from a PC running appropriate software. The process is modeled on an embedded device using precise mathematical models. The device itselt can be seen as an intermediate step between pure software simulations and real-life control objects, as it provides the physical presense of a coupled tanks system, yet requires no maintenance as a real-life device would.
The device is patented11A. Tepljakov, E. Petlenkov, and J. Belikov, “Virtual coupled tank system,” Estonian Patent P201 400 045, 2017.. Depicted here is a prototype built according to a specific configuration: it has two interconnected tanks. It is of course possible to build such systems with custom configurations on demand for the purposes of student/control engineer training.