This abnormality monitoring device is equipped with: an acceleration data acquisition unit for acquiring measurement data about the acceleration of a vehicle chassis; an abnormality presence determination unit for determining whether an abnormality is present on the basis of a comparison between the acceleration and a threshold; a frequency analysis unit for analyzing the acceleration frequency when the abnormality presence determination unit determines that an abnormality is present, and an abnormality type identification unit for identifying abnormality type on the basis of the frequency pattern.

Apparatuses, systems, methods, and software for train control and tracking using multi sensors, SSD/QR signs, and/or RF reflectors are disclosed, which enable determination of train location on a guideway, train movement authority, train length, and coupler status of each vehicle (married pair) and the consist (integrity) of the train.

A method for safely determining a position information of a train on a track includes an on-board system determining appearance characteristics, current distances relative to the train and current angular positions relative to the train of passive trackside structures with a first sensor arrangement of a first localization stage of the on-board system. The on-board system stores a map data base in which georeferenced locations and appearance characteristics of the passive trackside structures are registered. A first position information about the train is derived from a comparison of determined current distances and current angular positions and the registered locations of allocated passive trackside structures by the first localization stage. A second position information about the train is derived from satellite signals determined by a second sensor arrangement of a second localization stage. The first and second position information undergo a data fusion resulting in a consolidated position information.

A sensor arrangement for position determination of a rail vehicle includes at least two sensors that can be attached to the rail vehicle. Each of the sensors is configured to ascertain a position speed and to be disposed on the rail vehicle at different positions transverse to the direction of travel. At least one processing apparatus which is connected to the sensors is configured to process the position speeds ascertained by the sensors. An apparatus for position determination of a rail vehicle, a rail vehicle, and a method for position determination for a rail vehicle are also provided.

An obstacle detection device includes: a sensor unit including a camera, a laser distance measuring device, and an optical element, and setting optical axes of the camera and the laser distance measuring device to an optical axis in the same direction using the optical element; a monitoring area control unit calculating a monitoring area to be monitored by the sensor unit using a position of a train, map information indicating a position of a track of the train, and an attitude angle of the train, and performing control to cause a direction of the optical axis of the sensor unit to be on a course of the train using a drive mirror; and an obstacle determination unit detecting an obstacle on the course of the train based on monitoring results of the camera and the laser distance measuring device, and determining whether a collision avoidance action is necessary.

A method, a device and a system for safely and reliably performing real-time speed measurement and continuous positioning are provided. With the method, inertial navigation data from an inertial navigation signal source arranged in a train is detected, and correction data from a correction signal source is detected. In a case that no correction data is detected, a current speed and a current position of the train is determined based on the inertial navigation data, and in a case that the correction data is detected, the inertial navigation data is corrected with the correction data, and a current speed and position of the train are determined based on the corrected inertial navigation data. Therefore, even in the case that no correction data is detected, the real-time speed measurement and continuous positioning can be performed safely and reliably based on the inertial navigation data.

Disclosed are a method and system for correcting the precision of a magnetic levitation train traction system position control ring. The precision correction method comprises: step A, a speed measuring system collecting position-related information of a train; step B, sending the position-related information to a traction system through a signal system; and step C, the traction system carrying out closed-loop control on the position of the train according to the position-related information. The method further comprises step A1 before step A: checking the time for the speed measuring system, the signal system and the traction system, and adding timestamp information. According to the correcting method and system, the time is checked for a speed measuring system, a signal system and a traction system, and timestamp information is added, such that the influences of a delay and periodic random shaking are overcome, and the requirement of traction control of a medium-high speed magnetic levitation train is met. By using mature and cheap 4G-LTE wireless communication, the characteristics of high bandwidth, low delay, wide coverage, QoS guarantee and high-speed movement are achieved. A simple and practical method for improving precision of medium-high speed magnetic levitation magnetic pole phase angles is provided, and this has good engineering application prospects.

The present invention relates to a moving block train operation control method and system based on train autonomous positioning, where the method is centered on a train-mounted device, autonomous positioning and integrity checking are implemented for the train-mounted device through satellites, and a movement authority and a target distance curve are calculated according to a real-time position, speed, and line state of a preceding train and in combination with train-to-train communication train safety protection technology, thereby achieving moving block. Compared with the prior art, the present invention has the advantages that line use efficiency, system work efficiency and operation efficiency are improved, a quantity of railside devices is reduced, and system construction and maintenance costs are reduced.

A train speed control system 100 includes a first non-contact sensor 110 that outputs measured first speed information, a first safety device 120 that receives the first speed information from the first non-contact sensor 110, a second non-contact sensor 140 that outputs measured second speed information, and a second safety device 150 that receives the second speed information from the second non-contact sensor 140 and transmits the received second speed information to the first safety device 120 at a predetermined timing. Then, when first second speed information is received from the second safety device 150, the first safety device 120 evaluates soundness of the first speed information based on a speed difference between the first second speed information and first first speed information measured by the first non-contact sensor 110 at substantially the same timing as the first second speed information, and determines control speed of a train 1 based on a result of the evaluation.

A movement-distance measuring apparatus is provided with: an antenna, a phase detection circuit, a phase-shift calculation circuit, and a movement-distance calculation circuit. The antenna transmits a radio wave toward a plurality of reflectors arranged at constant intervals along a moving path of a moving object, and receives a reflected wave from the reflectors. The phase detection circuit detects a phase of the reflected wave received by the antenna. The phase-shift calculation circuit calculates a phase shift based on the phase detected by the phase detection circuit. The movement-distance calculation circuit calculates a movement distance of the moving object, based on the phase shift calculated by the phase-shift calculation circuit, and based on the interval of the reflectors.