Alstom Transport Technologies

Sagem Defense Securite

Safran Electronics & Defense

Mathieu Bresson

Lionel Rosellini

Javier Ballesteros

Jean-Louis Venencie

Felipe Paiva

Jocelyn Perrot

When an event prevents a train from moving along a route in a nominal direction, this method makes it possible to cause it to circulate in an opposite direction by: selecting () an origin zone and an output signal; drawing () a pseudo-route on the successive zones between the origin zone and the output signal; opening () the pseudo-route by associating a sub-route with each zone, corresponding to the reservation of said zone for said train; informing () the train that it must circulate in the opposite direction; determining () a movement authorization for the train from sub-routes that are open and a list of obstacles that is updated regularly; sending () the movement authorization to the train, the determination () and transmission () steps being iterated until the train crosses the output signal.

Optimized circulation management method of a train and associated CBTC signaling system

In a gyroscopic system, a vibrating gyroscope is controlled in gyrometer mode in a control loop. The control loop corresponds to at least one current control for an operating parameter. In the control loop, a modified control to be applied to the gyrometer for said operating parameter is obtained () by introducing a sinusoidal interference into the current control. Then, the modified control is applied () to the gyrometer as the current control. A resulting measurement value () is determined. A sinusoidal interference () is calculated as a function of said measurement value. Lastly, on the basis of the measurement value, it is decided () whether to repeat the previous steps on the basis of the sinusoidal interference last determined.

Calibration of vibrating gyroscope

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Paris, France

Mathieu Bresson