Abstract
Road traffic signals are used to signal information to drivers (e.g., red signal to stop). A controller residing in a local cabinet is managing the traffic signal. Depending on the desired traffic situation, the corresponding traffic signal is switched on or off via the power line. For the time being, there is no programmable logic included in each traffic signal. As a result, there is a single type for each application available e.g., due to different power supply levels or light output. In addition, functionality of traffic signals is limited so that its status information cannot be retrieved.
This paper presents an approach to traffic signals for safety-critical applications based on an embedded system. It includes a presentation of safetyrelated hardware and a microcontroller with embedded safety-related firmware. The result is a platform to be used in various applications and meeting safety and performance requirements according to standard EN 50556 and VDE 0832.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
DIN/VDE: Road Traffic Signal Systems. VDE 0832, part 100-500 (2008-2011)
EN: Road traffic signal systems. EN 50556, CENELEC (2011)
IEC:Functional safety of electric/electronic/programmable electronic safety-related systems. IEC 61508-1 to -7,edn. 2 (2010)
Ministry of Defense: HAZOP Studies on Systems Containing Programmable Electronics, Part 1, Requirements. Standard 00-58, Issue 2 (2000)
Tamandl, T., Preininger, P., Novak, T., Palensky, P.: Testing Approach for Online Hardware Self Tests in Embedded Safety Related Systems. In: Proceedings of the 12th IEEE International Conference on Emerging Technologies and Factory Automation (ETFA), pp. 1270–1277 (2007)
Novak, T., Fischer, P., Holz, M., Kieviet, M., Tamandl, T.: Safe Commissioning and Maintenance Process for a Safe System. In: Proceedings of the 7th IEEE International Workshop on Factory Communication Systems (WFCS), pp. 225–232 (2008)
Wratil, P., Kieviet, M.: Sicherheitstechnik für Komponenten und Systeme. Hüthig Verlag, Heidelberg (2007)
Novak, T., Stoegerer, C.: The right degree of configurability for safety-critical embedded software in variable message signs. In: Schoitsch, E. (ed.) SAFECOMP 2010. LNCS, vol. 6351, pp. 418–430. Springer, Heidelberg (2010)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Novak, T., Stoegerer, C. (2013). Embedded System Platform for Safety-Critical Road Traffic Signal Applications. In: Bitsch, F., Guiochet, J., Kaâniche, M. (eds) Computer Safety, Reliability, and Security. SAFECOMP 2013. Lecture Notes in Computer Science, vol 8153. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40793-2_13
Download citation
DOI: https://doi.org/10.1007/978-3-642-40793-2_13
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-40792-5
Online ISBN: 978-3-642-40793-2
eBook Packages: Computer ScienceComputer Science (R0)