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Balises
A balise is an electronic beacon or transponder placed between the rails of a railway as part of an automatic train protection (ATP) system. The French word ''balise'' is used to distinguish these beacons from other kinds of beacons. Balises are used in the KVB signalling system installed on main lines of the French railway network, other than the high-speed Lignes à Grande Vitesse. Balises constitute an integral part of the European Train Control System, where they serve as "beacons" giving the exact location of a train. The ETCS signalling system is gradually being introduced on railways throughout the European Union. Balises are also used in the Chinese Train Control System versions CTCS-2 and CTCS-3 installed on high-speed rail lines in China, which is based on the European Train Control System. A balise which complies with the European Train Control System specification is called a Eurobalise. Overview A balise typically needs no power source. In response to radi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eurobalise
A Eurobalise is a specific variant of a balise being a transponder placed between the rails of a railway. These balises constitute an integral part of the European Train Control System, where they serve as "beacons" giving the exact location of a train as well as transmitting signalling information in a digital telegram to the train. Overview A balise typically needs no power source. In response to radio frequency energy broadcast by a (BTM) mounted under a passing train, the balise transmits information to the train ('Uplink'). The provisions for Eurobalises to receive information from the train ('Downlink') has been removed from the specification. The transmission rate is sufficient to transmit at least 3 copies of a 'telegram' to be received by a train passing at any speed up to 500 km/h. Eurobalises are typically placed in pairs on two sleepers in the center of the track. For ETCS they are typically spaced 3 metres apart. With the balises being numbered the train will ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
