Case Study: TREALIS achieves centimeter-level rail defect localization with SBG Systems Apogee Navsight

Trealis improves rail defect detection with SBG Systems’ 10 cm GNSS/INS accuracy

Trealis, a company specializing in rail track geometry measurement and defect detection, required a high-precision positioning solution for its inspection trains. Their challenge was to achieve centimeter-level localization accuracy to effectively identify rail defects, a performance level that standard GNSS receivers could not meet. This led them to the Apogee Navsight GNSS/INS system from vendor SBG Systems.

SBG Systems implemented its Apogee Navsight technology as the core positioning layer aboard Trealis's inspection trains. The solution was successfully integrated with odometry and a proprietary system, resulting in improved defect detection accuracy and highly reliable operation. Trealis praised SBG Systems for the product's quality, exceptional customer support, and excellent value. Over 150 Apogee units are already in operation, contributing directly to safer railways across France.

Trealis