To ensure safety in public transportation, regular brake testing on rail vehicles is essential. In addition to the daily brake tests before starting operations, comprehensive brake inspections with precise brake tests are mandatory after each major overhaul. The Karlsruhe Transport Authority (VBK) relies on Sensoric Solutions’ innovative braking distance measurement system, equipped with the advanced optical sensor OMS 4. This new solution enables braking distance measurements to be carried out more reliably, accurately, and efficiently, maximizing the safety of trams and light rail vehicles.
OMS 4: A Next-Generation Sensor
The OMS 4 sensor combines optical and inertial measurement technologies in a compact, durable system. Its non-contact optical speed measurement and integration of acceleration and gyroscope sensors guarantee highly precise results. This technology is specifically designed for dynamic driving parameters such as braking distance and deceleration, enabling even the smallest movement changes to be detected and analyzed. With a measurement frequency of up to 1000 Hz and an error rate of less than 0.2%, OMS 4 achieves unprecedented accuracy—even under challenging conditions.
Efficiency Improvements for VBK
VBK operates over 300 vehicles and previously conducted brake tests using older, error-prone systems. Thanks to the new OMS 4 system, inaccurate measurements and manual testing processes are now a thing of the past. The tests are conducted independently of GPS and environmental influences, allowing for reproducible results. Additionally, Sensoric Solutions has developed a complete solution for VBK that includes a robust measurement case with integrated data acquisition and a practical connection panel for power, trigger, and measurement signal.
Another highlight is the user-friendly software, which enables automated evaluation according to BOStrab (German Tramway Construction and Operation Regulations). This reduces the workload for testers and ensures that data is immediately evaluated digitally, with all necessary reports generated and archived at the push of a button.
Advantages at a Glance
The use of the OMS 4 sensor at VBK offers numerous advantages:
- Independent of GPS and Weather: The optical measurement technology ensures reliable measurements, whether in tunnels or near trees, and in rain or snow.
- Increased Efficiency: The system automatically evaluates data, generates standardized reports at the push of a button, and reduces error rates and testing time.
- Reproducible Results: OMS 4 provides accurate and reliable data under all conditions, sustainably enhancing safety in public transportation.
Learn more about how the system works in the video here: OMS 4 in Action (german language).
Conclusion: A True Advancement in Public Transportation Safety
With the OMS 4 brake test system, Sensoric Solutions sets new standards in vehicle testing. The collaboration with Karlsruhe Transport Authority is a prime example of how modern sensor technology can contribute to increased efficiency and safety. Sensoric Solutions once again demonstrates how technology shapes the future of public transportation with greater safety and innovation.