
Laumonier
A team of engineers with complementary skills and diverse backgrounds, with a strong product culture, running a production unit that covers everything from prototyping to small and medium series production.
Preventing failures is essential. The reliability of catenary contact wires is a major issue for passenger and equipment safety. CM4, the Catenary Measurement Cart, traces and geolocates every catenary wear measurement with ±3 mm² accuracy. Inspect 20 km per day, document everything, anticipate your interventions. Reliability guaranteed. O2Game can survey your network with the CM4, or you can opt for a direct purchase.

Your constraint: guarantee the availability and safety of your network while keeping your budgets under control.
Your problem: manual inspections are poorly documented, limit measurement coverage, and lead to costly emergency interventions.
CM4 changes the game with 3D laser profilometry. This technique projects laser lines onto the catenary contact wire, which are captured by an optical sensor. It delivers 500 measurements per second with ±3 mm² accuracy. Every measurement is geolocated (GPS + odometry) every 5mm.
Result: you move to predictive maintenance. Anticipate replacements, plan your upcoming work with confidence, and reduce unplanned stoppages. Compliance is ensured, costs are under control, and passengers are satisfied.

Fewer emergency interventions, optimized replacements.
Anticipate failures before they happen.
Wear measured every 5mm at a resolution of 75μm.
Equip yourself with CM4 and take full control of your network. The system automatically measures wear, geolocates every data point, and alerts you in case of critical wear.
The interface then displays the complete state of your network on an interactive map: critical zones, wear trends, history. Plan your budgets accurately, intervene at the optimal time, and justify your investments with factual data.
Request a demo
Discover our product from every angle through this detailed image gallery.



A team of engineers with complementary skills and diverse backgrounds, with a strong product culture, running a production unit that covers everything from prototyping to small and medium series production.



O2Game's teams, specialized in optical and IT solutions for industry, provide their clients with structured support. Their methodical approach guarantees optimized, tailor-made solutions.
Get in touch