ZÖLLNER Signal GmbH
ZÖLLNER Signal GmbH
The COBRA System: Control of Balises with Remote Assistance
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.
- Wireless communication
- Battery operation -> no external power supply needed
- Range up to 3 km – with repeater up to 6 km
- Switch up to 4 balises simultaneously
Control Unit // COBRA-CU
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).
Receiver // COBRA-R
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.
