Patent classifications
G01M17/08
Railroad Locomotive Monitoring System Configuration System and Method
A railroad locomotive monitoring system configuration system for a plurality of trains comprising: a monitoring system, and an on-board computer programmed or configured to: determine or receive railroad locomotive data; determine or receive railroad operation data; determine or receive configuration data; and based at least partially on at least a portion of the railroad locomotive data, at least a portion of the railroad operation data, and at least a portion of the configuration data, automatically configure at least one setting of the at least one component of the monitoring system.
FAULT DIAGNOSIS APPARATUS FOR BRAKE OF TRAIN AND AUTOMATIC TRAIN OPERATION EQUIPMENT DUE TO THE REDUCTION BRAKING PERFORMANCE USING THE SAME AND FAULT DIAGNOSIS METHOD FOR BRAKE OF TRAIN
The present invention relates to a fault diagnosis apparatus for a brake of a train, an automatic train operation system operated due to degradation of braking performance using the same, and a fault diagnosis method for the brake of the train. In particular, the present invention is directed to determining that a fault has occurred in the brake when the difference between the current acceleration of the train and the required acceleration is greater than or equal to a reference value and safely moving the train to a stopping point through a powering operation or coasting operation such that emergency braking is not applied by an automatic train protection (ATP) system if the fault has occurred in the brake. When a fault occurs in the brake of the train, the train is automatically operated such that emergency braking is not triggered by an ATP system.
FAULT DIAGNOSIS APPARATUS FOR BRAKE OF TRAIN AND AUTOMATIC TRAIN OPERATION EQUIPMENT DUE TO THE REDUCTION BRAKING PERFORMANCE USING THE SAME AND FAULT DIAGNOSIS METHOD FOR BRAKE OF TRAIN
The present invention relates to a fault diagnosis apparatus for a brake of a train, an automatic train operation system operated due to degradation of braking performance using the same, and a fault diagnosis method for the brake of the train. In particular, the present invention is directed to determining that a fault has occurred in the brake when the difference between the current acceleration of the train and the required acceleration is greater than or equal to a reference value and safely moving the train to a stopping point through a powering operation or coasting operation such that emergency braking is not applied by an automatic train protection (ATP) system if the fault has occurred in the brake. When a fault occurs in the brake of the train, the train is automatically operated such that emergency braking is not triggered by an ATP system.
STRESS PROPERTIES MEASUREMENT METHOD, STRESS PROPERTIES MEASUREMENT DEVICE, AND STRESS PROPERTIES MEASUREMENT SYSTEM
A stress properties measurement method for measuring properties of stresses generated in a structure includes acquiring, from a first imaging device, a plurality of thermal images corresponding to temperatures of a surface of the structure, the plurality of thermal images being different in imaging time from each other, generating a stress distribution image corresponding to each of the plurality of thermal images, acquiring a stress value of a first section that is smaller in stress gradient than a predetermined value and respective stress values of a plurality of second sections where stresses are concentrated for the stress distribution images, and deriving correlation properties of stresses at a section of the structure based on the stress value of the first section acquired and the respective stress values of the plurality of second sections acquired.
Method and Device for Detecting a Derailed State of a Rail Vehicle
A method and device for detecting a derailment state of a rail vehicle, wherein at least one kinematic variable is respectively measured via first and second sensors with respect to first and second wheelset end portions and corresponding measurement signals are formed, processed and evaluated, where values of first and second falling velocities y with respect to the first and second wheelset end portions are respectively calculated from the measurement signals via a computing unit and a derailment state of the rail vehicle is detected via a first comparison operation of the first falling velocity and the second falling velocity with a first falling velocity limit value and a second falling velocity limit value, which has a greater magnitude than the first falling velocity limit value such that a high level of certainty in the detection of derailment states is achieved.
Method and Device for Detecting a Derailed State of a Rail Vehicle
A method and device for detecting a derailment state of a rail vehicle, wherein at least one kinematic variable is respectively measured via first and second sensors with respect to first and second wheelset end portions and corresponding measurement signals are formed, processed and evaluated, where values of first and second falling velocities y with respect to the first and second wheelset end portions are respectively calculated from the measurement signals via a computing unit and a derailment state of the rail vehicle is detected via a first comparison operation of the first falling velocity and the second falling velocity with a first falling velocity limit value and a second falling velocity limit value, which has a greater magnitude than the first falling velocity limit value such that a high level of certainty in the detection of derailment states is achieved.
System and method for testing aerodynamic characteristic of high-speed moving vehicle-bridge system and subsidiary facilities thereof under crosswind
A system for testing aerodynamic characteristics of a high-speed moving vehicle-bridge system and subsidiary facilities thereof under a crosswind includes a vehicle model, a starting mechanism, a buffer mechanism, a wind tunnel test section and guide rails. The guide rails pass through the wind tunnel test section; the starting mechanism and the buffer mechanism are separately located at both ends of the guide rails. The guide rails include an acceleration section and a deceleration section. The starting mechanism is located in the acceleration section, and the buffer mechanism is located in the deceleration section; the vehicle model starts to run at the starting mechanism and stops at the buffer mechanism; an instantaneous speed of the vehicle model in the acceleration section is not less than 100 km/h. The present invention carries out simulation tests on various infrastructures, their subsidiary facilities and trains through scale models.
Nondestructive inspection method and nondestructive inspection system
According to an embodiment, a nondestructive inspection method includes: detecting, by a plurality of sensors installed in a truck that supports a vehicle body, an elastic wave generated when a lifting member inserted between the vehicle body and the truck moves the vehicle body up and down; and estimating, by an evaluation device, a position of a defect in the truck, based on the elastic wave detected by the plurality of sensors.
Nondestructive inspection method and nondestructive inspection system
According to an embodiment, a nondestructive inspection method includes: detecting, by a plurality of sensors installed in a truck that supports a vehicle body, an elastic wave generated when a lifting member inserted between the vehicle body and the truck moves the vehicle body up and down; and estimating, by an evaluation device, a position of a defect in the truck, based on the elastic wave detected by the plurality of sensors.
System for train terminal test
A system for identifying whether the braking system of a train is functioning properly such as during a train terminal test. A monitor on a rail car is used to detect abnormalities in the braking system and can report problems to a handheld terminal or a central controller in the locomotive. The monitor has a pressure sensor for measuring brake pipe pressure, auxiliary reservoir pressure, emergency reservoir pressure, and brake cylinder pressure at the rail car. The monitor also has a controller that can calculate whether brake pipe reduction resulted in the appropriate amount of brake cylinder pressure. The monitor can then provide the results locally via a visual indicator or remotely to a handheld terminal used by a train inspector or the controller in the locomotive. Testing data over time may be stored for future reference or transmitted remotely to assist with maintenance and service scheduling.