Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Pantograph Monitoring for the eHighway

13.01.2015

Siemens is developing an automatic monitoring system for pantographs.

Designed initially for electric and hybrid trucks on eHighways, the system uses cameras and sensors to check the condition of pantographs in order to prevent damage to the contact wire. Similar but more complex systems are occasionally used for electric trains.

The eHighway system is a low-emission solution that was developed by Siemens for heavily used truck shuttle routes. Electric or hybrid-drive trucks use pantographs to draw electric power from overhead conductors, which allows them to travel with practically no emissions.

On an eHighway, which will be used by vehicles with many different owners, monitoring the pantographs is especially important to prevent route closures that may become necessary because of damaged overhead conductors.

The eHighway solution is a compact and inexpensive system that can be installed at various points along the route and simultaneously detects whether the vehicles are authorized. Siemens introduced the solution recently at the Innotrans 2014 trade fair and demonstrated how it can be applied to electric trains.

Whether on a truck or train, the pantographs are subject to wear and tear during operation. The carbon contact strips, in particular, wear out through contact with the overhead wire. If worn-out or recently damaged contact strips are not detected in time, grooves, fractures, or uneven wear could lead to contact problems and thus to damage of the contact wire of the overhead conductor. In extreme cases, the overhead contact wire might even break.

Special cameras monitor the contacts

The system monitors the pantograph in two ways. Cameras monitor the carbon surfaces on the contact strip. Special algorithms evaluate the level of wear or incipient damage. As soon as enough measurement data is available from various systems, the solution will also try to predict when the carbon strips have to be replaced.

Maintenance is thus possible according to the state of wear, and the contact strips will be used for as long as possible. In addition, sensors register the vertical deflection of the overhead contact wire. From this, the pressure on the wire can be inferred. If the pantograph presses on the wire with too much force, there is excessive wear on the carbon layer as well as the overhead contact wire. If the pressure is too low, the contact could be broken, and arcing might occur, which also stresses both sides of the connection.

The system is designed in such a way that it can be installed at the poles of the overhead conductor as well as on bridges in order to take measurements at as many points as possible along the route. This makes it possible to draw additional inferences regarding the condition of the infrastructure - the suspension of the overhead contact wire, for instance. In the case of electric trains, the train stations or depot entrances are appropriate spots for measurements.

The condition of the pantograph is transmitted to the control centers, the maintenance engineers or to an onboard unit in the truck. Siemens is operating the monitoring system at its test facility for eHighways and is currently optimizing the automatic analysis, including the process for evaluating the contact strips, for instance. After that, a functional prototype is planned.

Weitere Informationen:

http://ww.siemens.com/innovationnews

Dr. Norbert Aschenbrenner | Siemens InnovationNews

More articles from Information Technology:

nachricht The TU Ilmenau develops tomorrow’s chip technology today
27.04.2017 | Technische Universität Ilmenau

nachricht Five developments for improved data exploitation
19.04.2017 | Deutsches Forschungszentrum für Künstliche Intelligenz GmbH, DFKI

All articles from Information Technology >>>

The most recent press releases about innovation >>>

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

Im Focus: Making lightweight construction suitable for series production

More and more automobile companies are focusing on body parts made of carbon fiber reinforced plastics (CFRP). However, manufacturing and repair costs must be further reduced in order to make CFRP more economical in use. Together with the Volkswagen AG and five other partners in the project HolQueSt 3D, the Laser Zentrum Hannover e.V. (LZH) has developed laser processes for the automatic trimming, drilling and repair of three-dimensional components.

Automated manufacturing processes are the basis for ultimately establishing the series production of CFRP components. In the project HolQueSt 3D, the LZH has...

Im Focus: Wonder material? Novel nanotube structure strengthens thin films for flexible electronics

Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics.

"The structural robustness of thin metal films has significant importance for the reliable operation of smart skin and flexible electronics including...

Im Focus: Deep inside Galaxy M87

The nearby, giant radio galaxy M87 hosts a supermassive black hole (BH) and is well-known for its bright jet dominating the spectrum over ten orders of magnitude in frequency. Due to its proximity, jet prominence, and the large black hole mass, M87 is the best laboratory for investigating the formation, acceleration, and collimation of relativistic jets. A research team led by Silke Britzen from the Max Planck Institute for Radio Astronomy in Bonn, Germany, has found strong indication for turbulent processes connecting the accretion disk and the jet of that galaxy providing insights into the longstanding problem of the origin of astrophysical jets.

Supermassive black holes form some of the most enigmatic phenomena in astrophysics. Their enormous energy output is supposed to be generated by the...

Im Focus: A Quantum Low Pass for Photons

Physicists in Garching observe novel quantum effect that limits the number of emitted photons.

The probability to find a certain number of photons inside a laser pulse usually corresponds to a classical distribution of independent events, the so-called...

Im Focus: Microprocessors based on a layer of just three atoms

Microprocessors based on atomically thin materials hold the promise of the evolution of traditional processors as well as new applications in the field of flexible electronics. Now, a TU Wien research team led by Thomas Müller has made a breakthrough in this field as part of an ongoing research project.

Two-dimensional materials, or 2D materials for short, are extremely versatile, although – or often more precisely because – they are made up of just one or a...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Fighting drug resistant tuberculosis – InfectoGnostics meets MYCO-NET² partners in Peru

28.04.2017 | Event News

Expert meeting “Health Business Connect” will connect international medical technology companies

20.04.2017 | Event News

Wenn der Computer das Gehirn austrickst

18.04.2017 | Event News

 
Latest News

Wireless power can drive tiny electronic devices in the GI tract

28.04.2017 | Medical Engineering

Ice cave in Transylvania yields window into region's past

28.04.2017 | Earth Sciences

Nose2Brain – Better Therapy for Multiple Sclerosis

28.04.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>