Abstract: A terminal device includes a plurality of processing devices, each of which includes: a database; a state managing unit that manages data stored in the database; a request managing unit that determines data to request from an external system and an order in which the data is to be requested from the external system based on a management state of the data in the state managing unit, a management state of data in a state managing unit of another processing device, and a type of predetermined event requiring data in a case where the predetermined event has occurred, the request managing unit being capable of requesting data from the external system on the basis of the order; and an obtainment managing unit that manages a state of obtainment of data from the external system, and a request managing unit of a predetermined processor requests data from the external system.

Abstract: A train control device (20) to be installed on a train (10) includes an acquisition unit (21) that obtains first pulses from a velocity sensor (31) for detecting the first pulses generated on a first axle of the train (10) and obtains second pulses from a velocity sensor (32) for detecting the second pulses generated on a second axle of the train (10), a storage unit (22) that stores the first pulses and the second pulses, and a control unit (23) that determines occurrence or non-occurrence of a slip or a slide of the train (10) based on a pulse ratio, where the pulse ratio is a ratio between a number of first pulses detected during a time period in which the train (10) traveled a given distance among the first pulses, and a number of second pulses detected during a time period in which the train (10) traveled the given distance among the second pulses.

Abstract: A train control device includes: a control unit that calculates a control speed of the train at a current position with respect to a target speed at a target position of the train, by using a travel distance from the current position to the target position of the train, an altitude difference between the current position and the target position, a braking force of a brake device of the train, first potential energy including an influence of an altitude difference based on a gradient of the track in a section from a head position to a tail position of the train at the current position, and second potential energy including an influence of an altitude difference based on a gradient of the track in a section from a head position to a tail position of the train at the target position.

Abstract: A train control system includes: a plurality of trains; a train operation control device that identifies a relief-object train that is a train having failure and determines a relief train that is a train that moves on to the relief-object train to relieve the relief-object train and a protective section in which the relief train can travel, on the basis of on-track information acquired from the trains; and a ground control device that sets, in the trains, the protective section determined by the train operation control device. The trains each transmit the on-track information including location information and failure information with use of which the train operation control device can determine a state of a failure when the failure occurs, to the train operation control device via the ground control device.

Abstract: An onboard control device includes an obtaining unit to obtain information from a wayside coil, for identifying a location of the wayside coil, and a control unit to correct train location information, or not, on a basis of correction permission information, the permission information being associated with the wayside coil and including information that indicates whether correction to the train location information is permissible. When the permission information indicates that the correction is permissible, the control unit corrects the train location information by using the wayside coil information at the time when the onboard pickup coil has passed through the wayside coil, and when the permission information indicates that the correction is not permissible, the control unit does not correct the train location information at the time when the onboard pickup coil has passed through the wayside coil.

Abstract: A terminal device includes a plurality of processing devices, each of which includes: a database; a state managing unit that manages data stored in the database; a request managing unit that determines data to request from an external system and an order in which the data is to be requested from the external system based on a management state of the data in the state managing unit, a management state of data in a state managing unit of another processing device, and a type of predetermined event requiring data in a case where the predetermined event has occurred, the request managing unit being capable of requesting data from the external system on the basis of the order; and an obtainment managing unit that manages a state of obtainment of data from the external system, and a request managing unit of a predetermined processor requests data from the external system.