| 摘要 |
PURPOSE: To obtain a detector for detecting marking along a railway track in order to control the speed of a railway vehicle as a function of its position and an instantaneous speed on a track section, and a processor for processing the signals supplied by the detector. CONSTITUTION: Markers comprises, on each track section, markers 1 arranged at constant or random interval at the entry of each section and markers 2 arranged to form a beacon for identifying the section in question and for initializing the device. A signal processor comprises a memory 9 in which a vehicle progress program is stored in the form of codes associated with each marker arranged on the ground and each containing a data item relating to the type of ground marker which is to be detected, a data item relating to a set-point speed of the vehicle on a level with the marker, and a data item relating to the number of the track section covered. |
