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Real-Time Systems and Applications (RTSA)

This is the home­page of the course Real-Time Systems and Applications taught in the summer semester 2021.

General Information

Lecture Sessions: Monday: 12:00-14:00
Tuesday: 14:00-16:00
Exercise Sessions: Thursday: 10:00-12:00
Thursday: 14:00-16:00
Associated Persons: Prof. Dr. Jian-Jia Chen (Lecturer)
Mario Günzel (Tutor)
Start of Course: 12.04.2021
Finals: Oral Exam
Credits: 8 Credits (Basismodul)

Due to Covid-19 we decided to teach this course virtually. Please register in the moodle-course (hyperlink above). There you can find teaching material, login data for the virtual course room (lectures and exercises) and further in­for­mation. If any issues arise, please contact Mario Günzel.

Course Introduction

Real-time systems play a crucial role in many applications, such as avionic control systems, automotive electronics, telecommunications, industrial automation, and robotics. Such safety-critical applications require high reliability in timing assurance to prevent from serious damage to the environment and significant human loss.

In this course, we will study the fundamentals from theoretical and practical perspectives to provide formal de­sign and verification of real-time systems. The main objectives are to introduce the basic concepts and some advanced topics in real-time systems, illustrate the most significant and state-of-the-art results in the field, and provide the basic methodologies for designing predictable computing systems which can be used to support critical control applications. The following subjects will be covered in the course:

  • Introduction to Task Models and Scheduling
  • Uniprocessor Scheduling
  • Resource Sharing and Resource Reservation Servers
  • Worst-Case Execution Time Analysis and Compilers Perspectives
  • Real-Time Operating Systems and Programming Languages
  • Real-Time Com­mu­ni­ca­tions
  • Real-Time Calculus
  • Multiprocessor Scheduling


A basic background in algorithm analysis, data structures, operating systems, and discrete math will be assumed.


  • Giorgio C. Buttazzo, “Hard Real-Time Computing Systems: Predictable Scheduling Algorithms and Applications”, Springer, Second Edition, 2004. ISBN: 0-387-23137-4 (roughly 40% of the lecture)
  • Conference and journal papapers in the literature. (Further in­for­mation during the lecture.)

Location & approach

The campus of TU Dort­mund Uni­ver­sity is located close to interstate junction Dort­mund West, where the Sauerlandlinie A 45 (Frankfurt-Dort­mund) crosses the Ruhrschnellweg B 1 / A 40. The best interstate exit to take from A 45 is "Dort­mund-Eichlinghofen" (closer to Cam­pus Süd), and from B 1 / A 40 "Dort­mund-Dorstfeld" (closer to Cam­pus Nord). Signs for the uni­ver­si­ty are located at both exits. Also, there is a new exit before you pass over the B 1-bridge leading into Dort­mund.

To get from Cam­pus Nord to Cam­pus Süd by car, there is the connection via Vo­gel­pothsweg/Baroper Straße. We recommend you leave your car on one of the parking lots at Cam­pus Nord and use the H-Bahn (suspended monorail system), which conveniently connects the two campuses.

TU Dort­mund Uni­ver­sity has its own train station ("Dort­mund Uni­ver­si­tät"). From there, suburban trains (S-Bahn) leave for Dort­mund main station ("Dort­mund Hauptbahnhof") and Düsseldorf main station via the "Düsseldorf Airport Train Station" (take S-Bahn number 1, which leaves every 20 or 30 minutes). The uni­ver­si­ty is easily reached from Bochum, Essen, Mülheim an der Ruhr and Duisburg.

You can also take the bus or subway train from Dort­mund city to the uni­ver­si­ty: From Dort­mund main station, you can take any train bound for the Station "Stadtgarten", usually lines U41, U45, U 47 and U49. At "Stadtgarten" you switch trains and get on line U42 towards "Hombruch". Look out for the Station "An der Palmweide". From the bus stop just across the road, busses bound for TU Dort­mund Uni­ver­sity leave every ten minutes (445, 447 and 462). Another option is to take the subway routes U41, U45, U47 and U49 from Dort­mund main station to the stop "Dort­mund Kampstraße". From there, take U43 or U44 to the stop "Dort­mund Wittener Straße". Switch to bus line 447 and get off at "Dort­mund Uni­ver­si­tät S".

The AirportExpress is a fast and convenient means of transport from Dort­mund Airport (DTM) to Dort­mund Central Station, taking you there in little more than 20 minutes. From Dort­mund Central Station, you can continue to the uni­ver­si­ty campus by interurban railway (S-Bahn). A larger range of in­ter­na­tio­nal flight connections is offered at Düsseldorf Airport (DUS), which is about 60 kilometres away and can be directly reached by S-Bahn from the uni­ver­si­ty station.

The H-Bahn is one of the hallmarks of TU Dort­mund Uni­ver­sity. There are two stations on Cam­pus Nord. One ("Dort­mund Uni­ver­si­tät S") is directly located at the suburban train stop, which connects the uni­ver­si­ty directly with the city of Dort­mund and the rest of the Ruhr Area. Also from this station, there are connections to the "Technologiepark" and (via Cam­pus Süd) Eichlinghofen. The other station is located at the dining hall at Cam­pus Nord and offers a direct connection to Cam­pus Süd every five minutes.

The facilities of TU Dort­mund Uni­ver­sity are spread over two campuses, the larger Cam­pus North and the smaller Cam­pus South. Additionally, some areas of the uni­ver­si­ty are located in the adjacent "Technologiepark".

Site Map of TU Dort­mund Uni­ver­sity (Second Page in English).