Novel Detection Method of Signal Section Boundary using Two Groups of Search Coils

Abstract

In train speed control system, if we can detect the exact position of the signal section boundary, it can be used for an effective correction of the running distance without using any additional particular devices on the ground-side. However, in the conventional system using a signal detection coil, it has been impossible to detect the section boundary because we can not distinguish the signal change in one section from one caused by passing through two different sections.
In this paper, we propose the novel detection method of the section boundary by using two groups of search coils, which are eqquipped under the floor at the center of the rolling stock. By the experiment on the real test line, we show that the section boundary is effectively detcted based on the difference between the two signals received.