Patent ID: 9216749
Filing Date: 2015-12-22
Classification: B61L

Abstract:
1. An occupancy detection device that detects an occupancy state of each block section by a train, each block section being obtained by dividing a track, a correction coil being installed along the track, and the train including a measurement section that measures a train position, a correction coil communication section that communicates with the correction coil when the train passes by an installation point of the correction coil, and a correction section that corrects the train position based on a communication result of the correction coil communication section, the occupancy detection device comprising: an acquisition section that acquires a train occupancy range that is determined based on the train position, the train occupancy range being a range in which the train may be present and being defined by a length of the train, a forward margin distance and a backward margin distance; a provisional detection section that provisionally detects the occupancy state of each block section based on the train occupancy range; a detection point passage determination section that determines whether or not the entirety of the train occupancy range has passed a detection point that is provided within a second block section adjacent to a first block section at a position away from a boundary between the first block section and the second block section by a given distance; and a determination section that determines the occupancy state of the first block section using a detection result of the provisional detection section and a determination result of the detection point passage determination section.