| 摘要 |
<P>PROBLEM TO BE SOLVED: To detect a train at both end points of a crossing only by one crossing controller for an end point. <P>SOLUTION: The open circuit-type crossing controller 50 for the end point includes: a switching circuit unit 56 connected between controller internal lines AA, BB and branch lines aa, bb in an interposed manner, the switching circuit unit switching a transmitting destination of review oscillation signals output from an oscillation detection unit 25 to a first connecting terminal 51 and an up end point beyond it in a first switching state, and switching the transmitting destination of review oscillation signals to a second connecting terminal 52 and a down end point BDC beyond it; and a switching control unit 55 which causes the switching circuit unit 56 to take either one switching state of the first and second switching states according to train operating direction instructions. The controller includes, in addition to a first adjustment unit 25a which adjusts the level of review oscillation signals transmitted through the controller internal lines AA, BB, a second adjustment unit 57 which adjusts the level of review oscillation signals transmitted through the branch lines aa, bb. <P>COPYRIGHT: (C)2013,JPO&INPIT |
