Computerized on-board system for controlling a train

A computerized on-board system for controlling a train or rail vehicle comprising:

• a train control and monitoring system including a main processor unit for controlling the train and electronic control, command and monitoring equipment for providing control data for the train, the control data including data concerning a main function of the train or rail vehicle, the control data including data for start-up and preparation of the train or rail vehicle, traction and braking of the train or rail vehicle or driving the train or rail vehicle in different modes;
• remote input/output modules for relaying data to and from the main processor unit for outputs/inputs of the train or for the electronic control, command and monitoring equipment which is connected to sub-networks for data transfer;
• at least one display unit for displaying the control data of the train provided by the main processor unit or by the electronic control, command and monitoring equipment;
• and
• a main data transfer network, wherein the main processor unit, the at least one display unit, the remote input/output modules and the electronic control, command and monitoring items of equipment are connected to the main data transfer network directly or indirectly by remote input/output modules,
• the electronic control, command and monitoring equipment includes at least one additional item of equipment, the at least one additional item of equipment being electronic equipment for automatic train control or video surveillance equipment,
• wherein the display unit is capable of processing the data and displaying, in addition to the data provided by the main processor and the electronic control, command and monitoring equipment, data produced by one of the at least one additional items of equipment, the data produced by one of the at least one additional items of equipment bypassing the main processor.