Abstract: An obstacle detection device installed in a train includes: a sensor that monitors surroundings of the train and generates a range image that is a result of monitoring; a storage unit that stores map information including position information of structures installed along a railroad track on which the train travels; a correction unit that corrects, using the range image acquired from the sensor and the map information stored in the storage unit, first train position information that is information acquired from a train control device and indicates a position of the train, and outputs second train position information that is a result of correction; and a monitoring condition determination unit that determines a monitoring range of the sensor using the second train position information and the map information.

Abstract: A forward monitoring device for a train includes: a storage unit storing map information representing location information and a track geometry of a track and brake performance information representing performance of a train brake system; a train information acquisition unit obtaining train location information and train speed information; a monitoring unit monitoring an upside of the track in the travel direction; an obstacle determination unit determining presence or absence of an obstacle on the track based on a monitoring result of the monitoring unit; a braking distance calculation unit calculating a train braking distance using the map, brake performance, train location, and train speed information, and a processing time from when the monitoring unit performs monitoring until determination on presence or absence of an obstacle; and a monitoring distance determination unit determining a monitoring distance based on the braking distance to set a monitoring range of the monitoring unit.

Abstract: An obstacle detection device installed in a train includes: a sensor that monitors surroundings of the train and generates a range image that is a result of monitoring; a storage unit that stores map information including position information of structures installed along a railroad track on which the train travels; a correction unit that corrects, using the range image acquired from the sensor and the map information stored in the storage unit, first train position information that is information acquired from a train control device and indicates a position of the train, and outputs second train position information that is a result of correction; and a monitoring condition determination unit that determines a monitoring range of the sensor using the second train position information and the map information.

Abstract: In an elevator car position detection device, a magnetic field generator generates an eddy current magnetic field on an identification member, and a magnetic field detector detects the eddy current magnetic field generated on the identification member. The identification member includes a plurality of conductors which are continuously arranged along an ascending and descending direction of a car, and are relatively different in a plate thickness with respect to a skin depth of an eddy current generated by the magnetic field generator on the identification member. A shape of at least a part of a boundary between the adjacent conductors is a straight line or a curve tilted with respect to a direction orthogonal to the ascending and descending direction of the car.

Abstract: In an elevator car position detection device, a magnetic field generator generates an eddy current magnetic field on an identification member, and a magnetic field detector detects the eddy current magnetic field generated on the identification member. The identification member includes a plurality of conductors which are continuously arranged along an ascending and descending direction of a car, and are relatively different in a plate thickness with respect to a skin depth of an eddy current generated by the magnetic field generator on the identification member. A shape of at least a part of a boundary between the adjacent conductors is a straight line or a curve tilted with respect to a direction orthogonal to the ascending and descending direction of the car.