Wherever several clocks tick simultaneously, it is tricky to get them all to display precisely the same time. This can be a challenge for drone swarms that are airborne together. To tackle this problem, young scientist Agata Gniewek is developing new technologies. Read More
What has travelled by road to reach us until now could be delivered by drones in the future. This has many advantages: Poor rural transport infrastructure or persistent congestion in large cities can be bypassed. In 2013, Amazon was among the first to announce the intention to deliver goods using small autonomous drones. But when might this technology truly become part of our daily lives? Drone researcher Pasquale Grippa provides some answers. Read More
A novel boarding solution for cabin-based transport systems — e.g., ski lifts, cable cars, subways — is being discussed in industry and has already been implemented in the Austrian skiing resort Bad Gastein: In order to avoid long queues at succeeding boarding stations, a display in the boarding area tells the guests how many of them are allowed to enter the next cabin. This form of access control guarantees spare seats for passengers waiting at the middle station to go to the top station. The overall objective is to install fair access conditions at all stations which would automatically improve waiting time and comfort of passengers. We expect some system intelligence to compute the number of passengers to enter at each station and adapt this number in real time according to the varying passenger load. Compared to extensions or modifications of tracks, cabins, or cabin vehicles, access control would be an inexpensive solution to optimize systems.
Researchers at the University of Klagenfurt and Lakeside Labs are currently assessing as to whether such access control can actually improve the service. Doctoral candidate Pasquale Grippa explains: “We derived expressions characterizing the stochastic properties of passenger queue length, waiting time, and cabin capacity using queuing theory. This was so far done for a transport line with deterministic arrivals of cabins and Poisson arrivals of passengers.” The key insight is interesting: A significant reduction of the waiting time at a given station is only possible at the cost of worsening the stability of one of the preceding stations. “Our industrial partner SKIDATA will now implement our algorithm and carry out experimental studies with real passengers,” Grippa’s advisor, professor Christian Bettstetter, adds.
The project is an interdisciplinary collaboration of Lakeside Labs GmbH, Bettstetter’s mobile systems group, and the production and logistics group led by professor Gerald Reiner, together with SKIDATA AG. It is partly funded by the regional funding agency KWF.
Pasquale Grippa, Udo Schilcher, Christian Bettstetter:
On Access Control in Cabin-Based Transport Systems.
Pasquale Grippa, Evsen Yanmaz, Paul Ladinig, and Christian Bettstetter:
Guarded by Gamora: How Access Control Balances Out Waiting Times in Transport Systems.
This post is based on the abstract and introduction of the mentioned publication written by all three authors. The photo has been provided with kind permission by Jorge Clemente (SKIDATA).
Austria establishes a test field for 5G mobile systems. It can be used by companies and research institutes to advance their prototypes and products. The concept was presented in a press conference at the ministry for transport, innovation, and technology this week.
An analysis of robotics conferences of the past four years shows that Austria has relatively low visibility. It also shows that expertise is distributed among a handful of universities.
Samira Hayat and I attended re:publica 2017 in Berlin. It was an exciting event not least because Samira gave a very personal talk about drones and their application in disaster response.
I visited the Center for Aerial Robotics Research and Education in Toronto. It has an exciting research portfolio in small drone systems. My invited talk discussed wireless communications for drones and novel results for job selection. Read More
“What’s to expect in job interviews for a professorship?” is a commonly raised question by researchers applying for a faculty position. Here is my list of 15 questions you will most likely get.