This monitoring device comprises: an acceleration acquisition unit for acquiring acceleration data of a vehicle traveling along a track; an acceleration effective value acquisition unit for acquiring a plurality of acceleration effective values obtained by applying a bandpass filter for each of a plurality of constant specific bandwidths to the acceleration data; a corrected acceleration calculation unit for calculating a corrected acceleration on the basis of each of the acceleration effective values of the respective constant specific bandwidths and predetermined correction coefficients corresponding to the respective constant specific bandwidths; and an abnormality detection unit for detecting an abnormality of the vehicle or of the track on the basis of the magnitude of the corrected acceleration.

A safety transition ladder, including a fall prevention enclosure that includes a ladder enclosure section and a platform enclosure section, wherein the platform enclosure section includes a plurality of platforms that are accessible from the ladder enclosure section and an opening of a railcar, and a plurality of connectors that are configured to attach the safety transition ladder to a ladder of the railcar.

The method disclosed for transshipping load carriers between road and rail including a loading station. The loading station includes a platform, where a series of load carriers are temporarily stored; a road; and a track. Further, to reduce the time and logistics required, a train is provided with load carriers for loading at predetermined points. Before the train drives up, information is provided regarding the points of the train by the load carriers. The truck drives up to the platform and the load carrier is transferred to sections of the platform corresponding to the points of the train. The load carriers are temporarily stored at the sections of the platform until the train drives up. When the train stops, the load carriers are transferred to the train at points of the train provided for loading by load carriers in a direction transverse to the longitudinal extension of the platform.

The method disclosed for transshipping load carriers between road and rail including a loading station. The loading station includes a platform, where a series of load carriers are temporarily stored; a road; and a track. Further, to reduce the time and logistics required, a train is provided with load carriers for loading at predetermined points. Before the train drives up, information is provided regarding the points of the train by the load carriers. The truck drives up to the platform and the load carrier is transferred to sections of the platform corresponding to the points of the train. The load carriers are temporarily stored at the sections of the platform until the train drives up. When the train stops, the load carriers are transferred to the train at points of the train provided for loading by load carriers in a direction transverse to the longitudinal extension of the platform.

A method of assembling a railcar bogie includes: a positioning step of locking a wheelbase fixing jig to a pair of axle box devices to position the pair of axle box devices such that a wheelbase between a pair of wheelsets supported by the respective axle box devices becomes a predetermined designed value, the pair of axle box devices being arranged away from each other in a car longitudinal direction, the wheelbase fixing jig extending in the car longitudinal direction; a plate spring arranging step of making the pair of axle box devices support a plate spring extending in the car longitudinal direction; and a bogie frame arranging step of making a longitudinal direction middle portion of the plate spring support a bogie frame and coupling the bogie frame to the pair of axle box devices.

A method of assembling a railcar bogie includes: a positioning step of locking a wheelbase fixing jig to a pair of axle box devices to position the pair of axle box devices such that a wheelbase between a pair of wheelsets supported by the respective axle box devices becomes a predetermined designed value, the pair of axle box devices being arranged away from each other in a car longitudinal direction, the wheelbase fixing jig extending in the car longitudinal direction; a plate spring arranging step of making the pair of axle box devices support a plate spring extending in the car longitudinal direction; and a bogie frame arranging step of making a longitudinal direction middle portion of the plate spring support a bogie frame and coupling the bogie frame to the pair of axle box devices.

A method for analyzing a correlation between rail transit and direct current (DC) magnetic bias of a transformer includes the following steps: A: obtaining a current of a feed cable and a DC magnetic bias current: measuring the feed cable current in rail transit and the DC magnetic bias current of a transformer in a power grid within a certain period by a monitoring apparatus; B: calculating a characteristic quantity of the feed current within the measurement period based on the obtained current of the feed cable; C: calculating a characteristic quantity of the DC magnetic bias current within the measurement period based on the DC magnetic bias current; and D: calculating a support degree and a confidence coefficient based on the calculated characteristic quantity of the feed current and the calculated characteristic quantity of the DC magnetic bias current, and generating a correlation rule.

A detector detects physical quantities relating to an operation of a vehicle air-conditioning device at a predetermined sampling frequency to generate groups of time-series data items. A volatile tracking memory has a work area to which the groups of time-series data items for a tracking period is writable. A record holding power accumulator supplies, to the tracking memory, power used for holding in the work area the groups of time-series data items. A writer sequentially overwrites the groups of time-series data to the work area of the tracking memory and stops overwriting of the groups of time-series data items to the work area when an abnormality occurs in the vehicle air-conditioning device.

A protective shroud is provided for enveloping light radiating from a light emitter used with a sensor system for mapping of a railway track. The protective shroud includes: a rigid body having a frame and at least one opaque panel connected to the frame, the rigid body defining at least a first portion of a light radiation zone; a skirt formed of high density fibers extending from adjacent a bottom edge of the at least one opaque panel to adjacent a ground surface; at least one light emitter connected to the rigid body adjacent a top edge of the rigid body to emit light radiation into the light radiation zone; and at least one sensor connected to the rigid body adjacent the top edge of the rigid body to sense the light emitted from the at least one light emitter.

A protective shroud is provided for enveloping light radiating from a light emitter used with a sensor system for mapping of a railway track. The protective shroud includes: a rigid body having a frame and at least one opaque panel connected to the frame, the rigid body defining at least a first portion of a light radiation zone; a skirt formed of high density fibers extending from adjacent a bottom edge of the at least one opaque panel to adjacent a ground surface; at least one light emitter connected to the rigid body adjacent a top edge of the rigid body to emit light radiation into the light radiation zone; and at least one sensor connected to the rigid body adjacent the top edge of the rigid body to sense the light emitted from the at least one light emitter.