One of the best ways to judge the performance of a safety-critical vision system is not from a data sheet, but from how it performs in service, day after day, across an operational fleet.
Specifications
For one of our customer fleets over the last 2 and a bit years (at August 2026), our DCO system has now accumulated:
- 252+ billion requested frames
- 116,000+ days of combined streaming operation
- 99.96% availability
- 52.11 ms average end-to-end latency
What makes these figures particularly valuable is that we measure performance across the complete video path – from the camera through the onboard network to the image being presented in the cab.
By monitoring performance at this level, the DCO system has also helped identify issues outside the core Petards equipment, including vehicle wiring and network switch problems that would otherwise be difficult to diagnose.
For a system supporting Driver Controlled Operation, both availability and latency matter. The driver needs a dependable, usable image when it is required, with consistently low delay between what is happening outside the train and what is being displayed in the cab.
This is a robust example of the value of long-term in-service data.
A proven system is not simply one that passed its original qualification tests. It is one that continues to demonstrate its performance across billions of frames, thousands of operating days and the realities of an operational railway.
99.96% availability. 52 ms average latency. More than 252 billion requested frames.
That is a level of evidence we are proud to stand behind.