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Have you ever thought of how an MTR train "know" where itself was? Since MTR EMUs are normally automatically controlled by computers (See Special -> Train Operation (Not Available)), it is very important for the on-board train computer to know where the train was, so that it could calculate a suitable and safe speed at which the train travels. When a train passes through a Relocation Beacon, the Beacon Sensor installed on the train will "pick up" the information from the Beacon. Those information include the geographical location of that beacon. In this way, the on-board computer of the train knows where the train has just gone thru (See Special -> Track (Not Available)). Let's take a glance at how the Relocation Beacons look like. |
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* This one looks different, because its an RB installed
outdoors |
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Last Updated:
Monday, October 27, 2003 13:39
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