A fault tolerant proxy protocol preserving both data and timing and its usage in industrial tele maintenance

Abstract This paper shows the special needs of tele maintenance regarding Quality of Service (QoS). Then measurements of real-world communication links which are used by industry are presented and analyzed. Based on these results and the requirements of services which are needed for an efficient tele maintenance like real time video streaming, a novel data and time preserving error tolerant proxy (DaTPET proxy) was developed, which is explained in this paper. It finishes with the results and a demonstration in a real scenario.