| 摘要 |
Until now, the leading edges of event information were used to determine the speed of railway vehicles by means of stationary event detectors. The vehicle wheels which give rise to the event information may have a lateral offset with respect to the rails from 0 to 70 mm. The reaction range of the event detectors varies depending on this lateral offset, so that different measurement times of the event information result, depending on the lateral offset of the vehicle wheels at the event detectors. This leads to inaccurate speed values. According to the disclosed process, the intermediate pulses are used to determine the speed, rather than a determined edge of the event information; the thus detected measurement values do not depend from the respective reaction tolerances of the event detectors. |
