Remote control and video capturing of electronic instrumentation for distance learning

This paper focuses on the real-time visualization of the instrumentation involved in distance learning of electric and electronic measurement in order to allow students to better understand the real behavior of the instruments. This paper presents an integrated architecture enabling the dispatching of videos during the experimental sessions of the Remote Laboratory Distributed on Geographical Network LA.DI.RE. "G.Savastano." The new proposed architecture is able to adjust the video stream characteristics to the available bandwidth on the client side. In order to evaluate the effectiveness and versatility of the proposed solution, different technologies for video streaming have been analyzed and experimentally tested in the laboratory. In particular, bandwidth occupation and visualization quality have been analyzed by using different streaming technologies and by changing the frame rate and the light source in a multiclient scenario.