COBRA stands for “Control of Balises with Remote Assistance” and serves the purpose of being able to influence (to brake) a rail vehicle with the help of the additional components (Euro-)Balise and (mini) LEU depending on the dangerous situation (for example in front of a worksite). The system is designed in such a way that the status OK prevents a train from passing and the operator must actively confirm that the track is clear. The confirmation is carried out by operating the control unit, which switches the telegram of the balise by radio. This system works autonomously and independently of higher-level (train control) systems.
The control unit (COBRA-CU) can remotely control up to four receiver units/COBRA-R (and thus balises). It communicates with the COBRA-R via radio. The COBRA-CU is equipped with a replaceable battery. With a reaction time of less than one second, the COBRA-CU is able to process the information safely and in a timely manner (send and receive to COBRA-R and evaluate and control the LEU and Balise).
The COBRA-R unit serves as an interface between LEU and COBRA-CU. It switches the balise remotely via the LEU. The receiver is also equipped with a portable battery and is de- signed to operate for several days. The units are configured with each other using RFID cards.
Railway-news magazine Issue 4 Data & Monitoring edition, November 2022: ZÖLLNER - Infrastructure Solutions Both Preventive and Reactive.
Railway-News magazine Issue 3, September 2022: ZÖLLNER Signal GmbH - Electrical Makrofon EM660/370 TSI.
Railway-News magazine Issue 3, September 2022: ZÖLLNER Signal GmbH - Trackside Product Innovations.
ZÖLLNER offers acoustic warning devices for the heavy rail industry as well as for the entire light rail sector.
The ZÖLLNER electrical makrofon and control/amplifier unit work together to provide top of the line rail safety
The MPX V3 system allows early and systematic detection of declining quality of the cable infrastructure in railway systems.
Railway-News magazine Issue 1, March 2022: ZÖLLNER Signal GmbH - The New Cable-Based Warning Device ZPW126-31 in Action.
For many years, the MRWS mobile radio warning system has been used to protect employees in track areas on several thousand worksites.
ZÖLLNER turns 75! On one hand, 75 years is a long time, but on the other hand, this is a very short period in the generational chain.
Railway-News magazine Issue 5, November 2021: ZÖLLNER Signal GmbH - Permanent Radio Warning Systems.
The newest member of the MRWS family was developed according to CENELEC and meets the SIL4 (Safety Integrity Level 4) requirements.
Keep status and operating information from various devices digitally in view at all times with ZCloud – Mobile Radio Warning System in the Cloud.
The hardwired Automatic Track Warning System issues a warning of trains approaching on the track to all persons working on or near the track worksite.
The ZÖLLNER Mobile Radio Warning System Autoprowa® consists of different devices which can be modularly configured within the system to meet...
ZÖLLNER has been given the green light for the deployment of CLARIS, which combines headset announcement with voice communication.
The new version of ZÖLLNER's automatic track warning system, MRWS 3.2, has been authorised by the SNCF for use on all types of railway sites.
ZÖLLNER Signal and SYSTRA have co-developed a new automatic audible and visual warning system for work on railway lines.
ZÖLLNER's MPX system allows early and systematic detection of declining quality of the cable infrastructure in railway systems.
The ZVW, ZÖLLNER Vegetation Warning System, is a personal warning system that was developed with the safety of workers in mind.
Alstom is using ZÖLLNER Makrofones in the world's first fuel cell-powered, completely emission-free Cordia iLint regional train.
As the leading producer of warning systems for track construction sites, ZÖLLNER has been securing work sites and personnel for over 25 years.
The deployment of personal warning devices allows for the highest safety and fastest work progress possible.
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