A business tool used by the PACMAN teams to guide train drivers when the new TGV-M breaks down: see the train’s live state from a distance, find the faulty equipment and walk the driver through the fix.
The TGV-M is the new generation of high-speed train for SNCF Voyageurs. It is highly connected: thousands of variables describe the state of its equipment in real time, from bogies and doors to air conditioning and the onboard computer network.
When something goes wrong on the line, the driver calls the PACMAN, who help them diagnose and fix the problem from a distance. LEIA gives the PACMAN a live view of the train so they can see what the driver sees, and more.
Turn a flood of technical variables into a clear picture, fast enough for a phone call with a driver stopped on the track.
The overview shows each trainset car by car, in the direction of travel, with an alert under every car that has a fault. Below, the list of functions (bogies, energy, fire system, doors, air conditioning…) shows which ones are fine and how many faults the others have. Shortcuts lead to the power diagram and the computer network.
From the overview, PACMAN open any car and see a top view of it. In the power car, each piece of equipment is placed where it really is and labelled with its name. In passenger cars, the upper and lower decks can be browsed car by car. A quick search finds any variable, and a breadcrumb always shows where you are.
The driver’s desk is drawn as the driver sees it. Each button and lever is labelled, and the table below gives its current state, so PACMAN can tell straight away that an emergency button is pressed and guide the driver from there.
Many faults come from the onboard computer network. A dedicated view shows, car by car, every switch and device of the TCMS and PACIS networks with its connections, so PACMAN can trace a broken link from one end of the train to the other.
Each train series and sub-series runs its own software version, with its own list of variables. In the administration area, the variable files are imported for every version, so LEIA always reads the train with the right dictionary.
