| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent a collision of cars while preventing the lowering of service performance by a simple constitution.SOLUTION: A region which has a distance at which a second car 4 can be stopped in response to an absolute speed of the second car 4 on the occurrence of an abnormality, and does not permit the intrusion of a first car 2 is set as an exclusive region 302B of the second car. An absolute position which is advanced to a direction of a first car 2 by a distance not shorter than the exclusive region 302B is set as a stop limit position 301A of the first car 2 from an absolute position of a tip of the second car 4 in a direction of the first car 1. A plurality of thresholds for detecting the approach of the abnormality stepwise are set so that the first car 2 can be decelerated in speed and stopped before the stop limit position 301A of the first car 2.SELECTED DRAWING: Figure 1 |
