Vital speed profile to control a train moving along a track

A system for controlling a train, the system comprising:

• a first processor, the first processor being configured to calculate a first speed profile for the train along a first portion of track associated with the first processor, the first speed profile including a maximum allowable speed of the train for each point along the first portion of track, the first speed profile including a braking curve corresponding to a portion of the track in which the maximum allowable speed transitions from a higher speed to a lower speed;
• a second processor, the second processor being configured to calculate a second speed profile for the train along a second portion of track associated with the second processor, the second speed profile including a maximum allowable speed of the train for each point along the second portion of track, the second speed profile including a braking curve corresponding to a portion of the track in which the maximum allowable speed transitions from a higher speed to a lower speed, at least part of the second portion of track associated with the second processor overlapping the first portion of track associated with the first processor;
• a transmitter;
• and
• an integration processor connected to the transmitter and connected to receive the first speed profile from the first processor and the second speed profile from the second processor, the integration processor being configured to compare the part of the second speed profile overlapping the first speed profile to the first speed profile and, if the parts of the first speed profile and the second speed profile match, to transmit the part of the speed profile matching the part of the second speed profile to a receiver located onboard a train via the transmitter;
• a receiver located onboard the train, the receiver being configured for communication with the transmitter;
• an onboard processor located onboard the train and connected to the receiver;
• and
• a memory located onboard the train and connected to the onboard processor;
• wherein the onboard processor is configured to store a speed profile received from the integration processor via the receiver in the memory and to control the train such that the speed of the train does not exceed the speed profile.