americas
situations. “If you have any non-compliant condition, by exception, it will be reported to CCO”, continues Mr Gouveia. “If the balise is defective, the computer inside the train will read the defect to the CCO through TETRA. Our intention would be TETRA communication with ATP all the time.”
Dispatching by TETRA “Today they use only voice, but they are going to upgrade in order to use the system to make the signalling”, adds Paulo Ferrão, Teltronic’s commercial director for Brazil. “All the signalling system is going to be transmitted by TETRA. Together with this upgrade, they are going to do an upgrade in the dispatch centre, and all the dispatching is going to be by TETRA. “With the new system, dispatcher will be able to see the
diagram of the line on the PC screen, with the positions of the trains. He could put the mouse over the train, click and talk to that train.” T is is all in addition to the basic uses of the TETRA
Train dispatcher in the CCO: his TETRA handportable can be seen on the right With ATP, the trains will detect balises – radio beacons
laid along the track – and will report the information over TETRA data channels to the operations centre (CCO) in Rio for processing. T e system will also relay diagnostic information from the train and will handle any abnormal
system for voice communications between individuals and groups. For example, work groups in Supervia’s train depots can keep in touch with one another, and train drivers or maintenance workers can communicate with the operator in the CCO. All are covered by the system. T rough another enhancement of the TETRA network,
the CCO operator will be able to make announcements direct to passengers on station platforms, or even aboard trains, over the on-board public address system. “Nowadays we don’t have communication inside trains [except for] the operator”, Mr Gouveia says. “But if the trains stop between stations, it’s a big problem.”
Some 180 000 passengers fl ood through the station concourse in Rio de Janeiro every day. Inset: Central Station came to the attention of cinemagoers worldwide through this touching story, which won a Hollywood Golden Globe award in 1999 as best foreign-language fi lm
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