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Fraunhofer IPM develops optical systems for the detection of contact wire wear, contact wire position, clearance profile, position of poles, rail profile, and train geometry. High-resolution laser scanners combined with fast image processing provide the necessary measurement data for planning specific maintenance work. The sensors quickly, precisely, and reliably record the measurement data at travel speeds of 100 kilometers per hour and more. Our measuring systems are used worldwide to monitor the condition of railway networks.

At Fraunhofer IPM, we utilize the entire 3D data processing chain — from robust systems that capture three-dimensional geometries and the location of objects to data analysis and visualization. 

Exhibit

With the Contact Wire Inspection System (Low Speed) – CIS-LS, we offer an optical measurement system that records the position and degree of wear of up to eight contact wires in a single process. The CIS-LS comprises a Contact Wire Recording System (CRS) and a Wire Wear Monitoring System (WWS) and can operate at speeds of up to 60 km/h. The sensors are mounted inside the wagon, except for the illumination panel, which is fitted to the roof. A processing unit inside the inspection train provides operators with the measurement data. The CIS-LS has its own lighting unit, enabling it to operate reliably in various lighting conditions.