New state of the art: innovative speed monitoring system
In cooperation with Austria’s largest infrastructure operator, we have developed a new type of system for point-by-point train control. The Frauscher wheel sensor used as a measuring device provides a safe, robust solution. There are now over 800 systems in use nationwide.
What was the task?
The ZGP has been in successful use by the Austrian Federal Railways (ÖBB) for over 10 years. In the meantime, more than 800 units have been permanently installed on the tracks. In order to be able to monitor the individual speed testing devices at all times and to minimise maintenance outlay, ÖBB uses the analysis tool developed by ZÖLLNER, which bundles all information (device status, measurement data, fault messages) centrally and independently of location.
How was the task solved?
Together with the ÖBB, we revolutionised the concept for selective train control to the extent that the new state of the art made the switch-on and switch-off solenoid obsolete. Due to its compact design, the speed testing device can use a single sensor for detection and measurement while still complying with the current standards. Moreover, fault reporting has been significantly optimised and operations have been made more efficient with increased safety.
How did the project go?
After development was completed, the system was integrated into the Austrian route network in an initial large-scale roll-out. At the same time, training courses were conducted throughout Germany by ZÖLLNER personnel. To date, ÖBB is highly satisfied with the result and continues to rely on ZGP when it comes to selective train control.
The components we used
The RSR123v wheel sensor from Frauscher enables precise measurement of the speed of a rail vehicle. Combined with the VEB evaluation unit, which is used to determine the speeds based on the data from the RSR123v, this component represents a simple and efficient alternative to on/off solenoids in speed testing equipment.
- Simple installation by means of rail clamp
- Low wear due to inductive measuring technology
- High availability
- Exact speed measurement
- Proven in operation for over 10 years
The ZGP functions as the control unit for the entire system and switches the actuator depending on the result of the comparison of the setpoint and actual speed. In addition to the VEB, the ZGP contains the respective control modules as well as a display for configuring the parameters and displaying error messages.
- Compact design
- Adaptable solution
- Stationary & mobile use
The active magnet is the system component for intermittent automatic train control. When active, it emits a defined resonance frequency depending on the model. The rail vehicle has a counterpart that detects the frequency and processes it accordingly. This way, measures such as forced braking of the rail vehicle can be taken.