Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Solar-powered Technology for the Swiss Railroad

12.12.2011
Siemens is equipping a large part of the track network of Switzerland's federal railroad (SBB) with its ETCS train control system.

In a contract scheduled to run until 2017, some 430 switch towers and over 9,000 signaling elements are to be upgraded in line with the European Train Control System (ETCS).


More than half of the lineside electronic units supplied are to be powered exclusively by solar cells and will therefore be energy self-sufficient. Compared to an installation of conventional solutions, this will result in power savings for SBB of over 850,000 kilowatt-hours a year. The order is worth a total of €125 million and also covers support for the installed signaling systems over a period of 25 years.

Train control systems supplement the visible signals used to inform train drivers whether they can proceed and the speed at which they may travel. Such systems also transmit signals by radio and, if the driver does not react, automatically apply the brakes of the train. There are currently around 20 incompatible train control systems in use on Europe's railroads. As a consequence, locomotives often have to be switched at borders. The ETCS creates a standard and is used for all new installations. Any upgrades of existing track and trains are carried out as required.

Trainguard from Siemens Mobility and Logistics provides a complete portfolio of solutions for fitting trains and tracks with ETCS-compatible equipment. The elements of the system include so-called Eurobalises — radio beacons mounted on the track to transmit data to an antenna fixed under the train — and lineside electronic units, which transmit information to the balises.

Faced with the need to upgrade its existing signaling systems, SBB opted to switch to ETCS. One major challenge is to replace existing train control systems without a power supply. These serve to transmit a total of three signals — "Go," "Stop," and "Warning" — to the train via magnetic induction. To solve this problem, Siemens has developed a lineside electronic unit equipped with solar cells that generate sufficient energy to transmit information.

This solution not only reduces overall electricity consumption but also saves the cost of installing cables to over 5,000 signaling elements. In areas where more complex data, such as speed information, has to be transmitted, conventional lineside electronic units have been installed. The upgrade will also implement a standard for the switchgear installed in 430 switch towers, where three generations of technology are in use.

Dr. Norbert Aschenbrenner | Siemens InnovationNews
Further information:
http://www.siemens.com/innovationnews

More articles from Power and Electrical Engineering:

nachricht Stanford researchers develop a new type of soft, growing robot
21.07.2017 | Stanford University

nachricht Team develops fast, cheap method to make supercapacitor electrodes
18.07.2017 | University of Washington

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

NASA looks to solar eclipse to help understand Earth's energy system

21.07.2017 | Earth Sciences

Stanford researchers develop a new type of soft, growing robot

21.07.2017 | Power and Electrical Engineering

Vortex photons from electrons in circular motion

21.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>