202 results about "Railway system" patented technology

A simulation system of a railway system for a Medium-Voltage Direct Current (MVDC) distribution network includes: a computing device which stores a simulation program including a converter station model configured to simulate a converter station included in the MVDC distribution network and a train operation model configured to simulate an operation state of a train that is supplied with power from the converter station and runs; a converter controller which controls a DC / DC converter included in the converter station model; and a Hardware In the Loop Simulation (HILS) device which performs a simulation based on the converter station model, the train operation model, and the converter controller. Herein, the converter station model and the train operation model are executed in software by the HILS device, and the converter controller is connected to the HILS device and driven to control the converter station model.

A service vehicle moves on a rail system of an automated storage and retrieval system. The service vehicle includes a container handling vehicle part for storing a container handling vehicle operating on the rail system, and wheels for allowing movement of the service vehicle along the rail system during operation. The service vehicle further includes a displacement mechanism, and a hoist arrangement connected to the displacement mechanism. The displacement mechanism and the hoist arrangement are configured for moving the container handling vehicle between an operational position on the rail system and a loaded position within the container handling vehicle part.

The invention discloses a train fault state detection method and system based on artificial intelligence, and relates to the technical field of train fault state detection. The method comprises the steps that multiple types of sensors are arranged at key parts of a train, state data such as temperature, vibration, electricity, energy consumption and noise are collected in real time, local receiving, preprocessing and wireless uploading of the data are achieved by means of a mobile terminal, and a cloud platform conducts multi-dimensional analysis and fault recognition through an artificial intelligence algorithm on the basis of a health assessment model. According to the train fault diagnosis system and method, health indexes and early warning information are generated and pushed to operation and maintenance personnel in real time, the system supports overhaul process recording and multimedia information uploading, information archiving and analysis tracing are achieved, the accuracy and response efficiency of train fault diagnosis are remarkably improved, the operation and maintenance cost is reduced, and the safety and intelligent level of a railway system are enhanced.

The invention relates to the technical field of rail transit, in particular to a heavy haul railway group simulation system, method and device and a medium. The method comprises the following steps: deploying a plurality of sensors on site to collect train, track or signal data in real time, and cleaning and fusing the collected data to obtain preprocessed data; based on the preprocessed data, constructing digital twin models of the heavy haul railway system by adopting a three-dimensional modeling technology, and establishing an association relationship and an interaction mechanism between the digital twin models; performing real-time calculation and simulation on the digital twin model through numerical calculation and dynamic simulation; displaying the digital twin model by adopting an interactive interface of a virtual reality (VR), augmented reality (AR) technology or a naked eye 3D technology, and performing interactive operation with the digital twin model through the interactive interface; and comparing and analyzing a simulation result with actual operation data, verifying the accuracy and reliability of the digital twinborn model by calculating errors, and adjusting and optimizing the model according to a verification result.

The invention relates to the technical field of rail bridge post-earthquake traffic, in particular to a method, medium and equipment for calculating post-earthquake response and traffic capacity of a rail bridge system. The method comprises the following steps: establishing a nonlinear simulation model of a high-speed railway system; the post-earthquake track residual irregularity is calculated, a post-earthquake track residual irregularity characteristic curve is constructed, and fast calculation of post-earthquake response is achieved; establishing a wheel-rail power system nonlinear mapping model based on the convolutional neural network; and performing Monte Carlo simulation on the track residual irregularity quantitative index, inputting the track residual irregularity quantitative index into a wheel-rail power system nonlinear mapping model, and calculating a train power response index to obtain the post-earthquake traffic capacity of the train. A reasonable calculation model is established according to the structural characteristics of the track system, and the time and economic cost is reduced; post-earthquake dynamic response is calculated through a wheel-rail power system nonlinear mapping model, the relation between post-earthquake track residual deformation and train dynamic response is established, and the post-earthquake traffic capacity of the track bridge system under different safety levels is obtained.

System, method, and computer program product for determining a route for a container handling vehicle operating on a rail system of an automatic grid-based storage and retrieval system. The method comprising creating a model of the rail system representing the rail system as a finite set of non-overlapping rectangular first zones in a first direction, and a finite set of non-overlapping rectangular second zones in a second direction, wherein the zones are positioned around grid positions that are not accessible by the container handling vehicle, determining overlap information indicative of one or more regions of the rail system in which there is an overlap between a zone of the finite set of first zones and a zone of the finite set of second zones, determining grid position zone information by, for each grid position determining in which of the finite set of first zones and / or the finite set of second zones the grid position is located, receiving a request for a route for at least one container handling vehicle from a first grid position to a second grid position; and determining the route using the model of the rail system.

It is described a container transport vehicle (501′; 501″; 501′″; 501″″,501′″) for operation on a rail system (108) of an automated storage and retrieval system (1), the container transport Y vehicle (501′,501″,501′″; 501″″; 501′″) comprising:—a vehicle body (501a′; 501a″; 501a′″; 501a″″; 501a′″″) defining a vehicle base (501d), four sides (501e), and an upper face (501f′; 501f″) opposite the vehicle base (501d);—a first drive means (501b) for movement of the container transport vehicle (501′,501″; 501′″,501″″; 501′″″) in a first direction (X);—a second drive means (501c) for movement of the container transport vehicle (501′; 501″,501′″; 501″″;501′″″) in a second direction (Y), wherein the second direction (Y) is perpendicular to the first direction (X);—an internal receiving space (20) within the vehicle body (501a′; 501a″;501a′″;501a″″; 501a′″″);—an elevator assembly (10) comprising a first support surface (11) being vertically movable and configured to support a storage container (106);—wherein the vehicle base (501d ) comprises a base opening (502), and at least one of the sides 501b (501e) comprises a side opening (503), the side opening (503) allowing passage of a storage container (106) into the internal receiving space (20) and the base opening (502) allowing the elevator assembly (10) to lower a storage container (106) at least partly therethrough. It is further described an associated system comprising the container transport vehicle and methods of using the container transport vehicle to transfer storage containers between different locations on a rail system.

The invention discloses a train multi-mode wireless access terminal and a multi-path data transmission scheduling method. The train multi-mode wireless access terminal integrates multi-system communication modules such as LTE-M, Wi-Fi, 5G, GSM-R and the like, configures various priorities for data through the main control unit, allocates default and standby bearer networks, and dynamically monitors network connection quality parameters to judge transmissibility, trigger switching logic and regulate and control QoS (Quality of Service) levels. The multi-path data transmission scheduling method comprises the steps of configuring a data priority and a network, monitoring a network state, executing transmission control based on the priority, and switching back to transmission after a default network is recovered. According to the invention, the problems of complex deployment, low flexibility and low reliability of a wireless communication module of an existing rail transit vehicle are effectively solved, and high-reliability and flexible data transmission and interconnection and intercommunication with a railway system in a multi-network environment are realized.

The invention provides a railway emergency power supply cooperative control method and system based on signal linkage, and relates to the field of railway electric braking systems.The method comprises the steps that 1, electrical parameters and power supply state data of station connection cables between adjacent stations are obtained on the basis of optoelectronic isolation signal acquisition units distributed in station machine rooms along a railway, the data are transmitted to the monitoring host in real time through the main-standby dual-path transmission architecture; and step 2, the monitoring host performs dynamic topological relation analysis based on the transmitted data in combination with a preset fault feature library, generates a space structure framework representing a fault influence range, and judges a fault category in combination with a station connection circuit control rule to generate a fault judgment result. Signal linkage and cooperative operation between railway emergency power supplies are achieved, power supply reliability and emergency response speed are improved, and stable operation of a railway system is guaranteed.

Disclosed is a firearm accessory with a clamping mechanism used to removably attach the firearm accessory to a rail system, such as a Picatinny rail. The clamping mechanism includes a pair of parallel engagement members and a reversibly extendable recoil lug, which is disposed within a guide groove in the firearm accessory. Additionally, the clamping mechanism includes a threaded fastener that is operatively connected to the recoil lug and is used to advance the recoil lug from, and retract the recoil lug into, the guide groove.

A locomotive has DC or AC traction motors, powered by a hydrogen fuel cell, and optionally other sources such as regenerative braking. The traction motors of the locomotive may be connected to a set of independent DC choppers or AC inverters, linked via a common DC bus, configured to regulate power from the one or more power sources. A manager module, among other functions, may receive inputs and signals to coordinate delivery of electricity from the sources to the motor. A method for retrofitting a legacy locomotive may include removing a generator and a control apparatus configured for diesel fuel, and installing a kit of apparatus configured to be powered by a hydrogen fuel cell. A railway system for use by locomotives powered by hydrogen has one or more hydrogen-generation stations deployed near a track of the railway system.

The present invention discloses a method and system for testing the quality of data transmission service of a railway DRTD system, which are corresponding solutions. In the solution, the validity and timeliness of data transmission of main network element nodes EMBC in the railway DRTD system can be tested, and at the same time, a method is provided for testing and verifying dispatching communication data services that are mainly carried by packet data of the railway DRTD system. The method and system can be widely used in railway DRTD system performance evaluation, daily debugging, system joint debugging and testing, and maintenance inspection, which are in line with the actual application requirements and scenarios of the railway DRTD system, do not affect the normal business processes of the railway DRTD system, are highly targeted, and can provide new methods and technical means for railway DRTD system operation and maintenance testing to ensure driving safety.

The invention relates to the field of railway track traffic, in particular to an electrified traction backflow proportion testing system and method. Comprising a power supply system and a backflow comprehensive control system which are connected, the backflow comprehensive control system comprises a control module, a backflow current monitoring module and a backflow state display module, and the backflow current monitoring module and the backflow state display module are respectively connected with the control module; the power supply system comprises a current source module and a current source control module which are connected. According to the electrified railway system backflow proportion testing system, accurate testing of the grounding grid backflow proportion of a traction substation of a newly-built railway can be achieved, the system can accurately monitor and record the grounding grid backflow proportion in real time, powerful guarantee is provided for safety and stability of railway engineering, and through the system, the system can be used for testing the grounding grid backflow proportion of the traction substation of the newly-built railway. The actual operation state of the traction backflow system can be known, and potential problems can be found and solved in time, so that long-term stable operation of a railway system is ensured.

A method for monitoring the integrity of a railway system (2) comprises the steps of: acquiring measurement signals from multiple strain sensors (21) on a track rail (6) of the railway system (2); determining the integrity of at least one component (5, 6, 7, 9) of the railway system (2) based on the measurement signals, wherein the multiple strain sensors (21) are components of a linear detection device (19) attached to the track rail (6) and extend over a measuring section (31) along the track rail (6) with a length (L) of at least 100 m; and wherein the integrity is determined by means of an electronic evaluation unit (20) which is in signal communication with the multiple strain sensors (21), in particular at least 100 of the strain sensors (21), for receiving the measurement signals. A monitoring device (1) for monitoring the integrity of the railway system (2).

The invention belongs to the field of railway systems, and provides a particle multi-scale coupling model construction method and sustainable self-repairing and self-adjusting ballast particles, and the method comprises the steps of experimental data collection, original DEM model construction, three-dimensional graph analysis, motion behavior analysis, parameter adjustment, other model construction, model fusion and multi-scale calibration. Through a contact scale test, a Lunar abrasion test, a single ballast crushing test and a one-way cyclic load test, the number of parameters of the model is enriched, and the simulation accuracy of the model is improved; parameter optimization is carried out through the laser scanning and particle image velocity measurement technology, correction of model parameters is achieved, and the deviation between a model prediction result and the reality is reduced.

The invention relates to the technical field of catenary state detection, in particular to a power transmission line abrasion detection method and system.The power transmission line abrasion detection system comprises a transferring mechanism used for bearing a detection mechanism to move along a catenary, and the detection angle of the detection mechanism is adjusted through a multi-degree-of-freedom mechanical arm; the detection mechanism comprises a camera module and a point cloud scanning part; the detection mechanism is in communication connection with the data processing device; the data processing device comprises an edge computing platform, a communication module and an alarm module; and a contact network detection model in the edge computing platform processes the data information and outputs a detection report of the contact network in real time. Through stable positioning, multi-degree-of-freedom adjustment, time sequence modeling of machine vision and efficient fusion of point cloud data of the transfer mechanism and the mechanical arm on the detection mechanism, high-precision and low-delay abrasion detection is automatically achieved in the whole process, the precision reaches the micron level, an accurate and real-time monitoring means is provided for railway maintenance, and the working efficiency is improved. And the safety and the reliability of a railway system can be improved.

The invention relates to the technical field of electrified railway catenaries, and provides an intelligent monitoring system and method for a catenary section insulator, and the method comprises the steps: collecting a visible light video, converting the visible light video into an HSV color space, and extracting the contour of a pantograph slide plate through combining the material and shape features; an optical flow method is adopted to track the contact track, the number of effective contact times is counted, and voltage and temperature data are synchronized to analyze performance changes before and after contact; and finally, a relation graph model is constructed, trend prediction and abnormal early warning of the state of the section insulator are realized, so that the operation state of the section insulator in the overhead line system can be continuously monitored in real time, advance perception and trend pre-judgment of faults are realized, and the safety and reliability of a railway system are effectively improved.

According to the station steel rail potential monitoring terminal disclosed by the utility model, through cooperative arrangement of the signal I / O unit, the data processing module and the server module, signals are collected from the steel rail through the signal I / O unit; the signals are subjected to scaling, filtering, common-mode interference removal and isolation processing, so that the accuracy and the stability of the signals are ensured; the data processing module carries out high-speed sampling on the processed signals and carries out data interaction with the server module through modes of 4G / CAT1, WIFI, 100M ETHERNET and the like, the average value, the maximum value and the minimum value of all sampling values are obtained, the sampling values are converted into physical values through the transformation ratio and the offset, data are uploaded to the server module through an MQTT protocol, high-frequency sampling is carried out on the steel rail potential signals, and the steel rail potential signals are sent to the server module. Proper data samples are provided for deep learning in the aspect of railway system management.

The invention discloses a graphical fault distance measurement method and system, relates to the field of traction substation tripping fault mark distance measurement in the railway industry, and can read a fault report of a fault distance measurement device and constant value parameter configuration of the fault distance measurement device off line, and calculate and analyze a fault type, whether line current is balanced or not and a fault distance according to the data and parameters. And a result is graphically displayed, so that the distance measurement error range can be narrowed by modifying and verifying the constant value parameters, and the corrected constant value parameters are exported and stored, thereby achieving the purposes of facilitating fault analysis, improving the working efficiency and shortening the maintenance time. Maintenance personnel are helped to quickly find out fault points, timely process faults and recover normal operation of lines, and the method is very important for safe, reliable and efficient transportation of a railway system.

A method is provided for operating a transport network, for example a rail freight network including receiving a state report (or “snapshot”) of the transport network including positions of the vehicles and states of the network control apparatuses via the data communications network. A plurality of computer simulations of the transport network are run with reference to the state report. The computer simulations generate a number of feasible timetables and subsequently one of them is selected as an optimal feasible timetable, being a timetable that best satisfies demands for load at terminals of the network. Each of the plurality of computer simulations involves moving vehicle agents corresponding to the vehicles over a graph of the transport network according to a vehicle movement procedure that is configured to avoid gridlocking. The computer simulations are also run according to an optimal destination selection method which is configured to optimise vehicle agent journeys to meet the demand for the loads at locations in the transport network. Each of the plurality of computer simulations is made with varied weightings in respect of optimisation factors in the optimal destination selection method to thereby vary each of the number of feasible timetables. The method includes identifying an optimal timetable from the number of feasible timetables and issuing controls to the vehicles and network control apparatus via the data communications network to control movement of the vehicles across the transport network in accordance with the optimal timetable.

A simulation system of a railway system for a medium voltage direct current (MVDC) power distribution network according to an embodiment of the present invention comprises: a calculation device storing a simulation program, the simulation program includes: a converter station model that simulates a converter station included in the MVDC power distribution network; and a train travel model that simulates a travel state of a train that is operated by supplying power from the converter station. A converter controller that controls a DC / DC converter included in the converter station model; and a hardware-in-loop simulation (HILS) device, the hardware-in-loop simulation device performing simulation based on the converter station model, a train driving model, and a converter controller, the converter station model and the train driving model being executed in software in the HILS device, the converter controller is connected to the HILS device and is driven to control the converter station model.

A method and system for railway edge computing service caching and task offloading. The method constructs an ACSCTO network model based on a pre-built railway system optimization model. In the ACSCTO network model, the service caching and task offloading network generates service caching decisions, and based on the service caching decisions, generates task offloading decisions. The bandwidth resource allocation network generates bandwidth resource allocation decisions based on the service caching and task offloading decisions. The computing resource allocation network generates computing resource allocation decisions based on the service caching, task offloading, and bandwidth resource allocation decisions. The ACSCTO network model is trained, and the trained ACSCTO network model is used to perform railway system service caching, task offloading, and resource allocation in real time. The ACSCTO network model proposed by the present invention can adaptively and dynamically adjust service caching and task offloading according to different task requirements, allocate computing resources and network bandwidth, thereby improving resource utilization rate, maximizing task processing efficiency, and reducing processing latency.

The utility model relates to the technical field of railway maintenance tools, and in the daily maintenance and inspection of a railway system, an inspector usually needs to carry various tools, such as using a common hammer to smash and knock, using a wrench to inspect and fasten a loose bolt, and using tools such as a feeler gauge to measure a gap or a gap between a rail and a sleeper. In order to solve the technical problems that the carrying burden of inspection personnel is increased, and the working efficiency is possibly influenced by incomplete tools in emergency, the utility model discloses a multifunctional inspection hammer which comprises a hammer rod, a hammer head, a connecting pipe and a wedge-shaped filler gauge, the hammer head is connected to the right end of the hammer rod, a clamping groove is formed in the hammer head, and the wedge-shaped filler gauge is arranged in the clamping groove. A hammering part is arranged on the hammer head; the hammer rod is a structural body with an opening in the left end and an inner cavity, internal threads are arranged on the wall of the inner cavity of the hammer rod, the left end of the hammer rod is in threaded connection with one end of the connecting pipe, a wedge-shaped filler gauge is arranged at the other end of the connecting pipe, and scale marks are arranged on the wedge-shaped filler gauge.

The invention relates to an actuating device (4) comprising an actuating mechanism (11) configured to allow and / or prevent fluid energy communication in order to activate and / or deactivate a determined function of a railway system (3), depending on a configuration of the device, a drive handle (12) mechanically secured to the actuating mechanism and configured to be rotated between a first position in which the device allows a first configuration for activating the function, and a second position in which the device allows a second configuration for deactivating the function, with the actuating mechanism which is rotated when the handle is rotated, an electric drive motor (13) configured to rotate the actuating mechanism and the handle, and an engagement and disengagement mechanism (14) mechanically secured to the motor and to the handle, the engagement and disengagement mechanism allowing an engaged stable configuration in which, when the motor is in operation, the actuating mechanism is actuated and the handle is rotated, and a disengaged configuration when the handle is rotated to actuate the actuating mechanism and when the motor is at rest.

In order to improve the accuracy of ascertaining the restriction of regenerative braking in consideration of the relationship between the travel position of a railway vehicle and the regenerative energy that can be provided to an overhead power line, the present invention provides a railway system comprising an on-board system mounted in the railway vehicle and a ground-side system that can communicate with the on-board system. The on-board system transmits vehicle regenerative data, which is data relating to regeneration by the railway vehicle, to the ground-side system. The ground-side system has a regenerative braking restriction database that is constructed by accumulating, on the basis of the vehicle regenerative data received from the on-board system, at least data on a travel section of the railway vehicle and data on the regenerative braking restriction of the railway vehicle.

A Railroad Snapshot and Playback System and Method is disclosed that can provide a messaging / communication infrastructure configured to generate and route current train related messages for multi-region train routing plans. The types of railroad data being tracked can be organized into one or more domains. A method for railroad snapshot playback can include receiving a plurality of events related to train movements in the rail system; creating a first snapshot that can include the plurality of the events, wherein a number of events in the first snapshot can be based on a snapshot increment; receiving a playback request for a playback state of the rail system; pulling a snapshot and events received after the snapshot based on the playback request; building a state of the rail system using the pulled snapshot and the pulled events; operating controls of the rail system based on the state of the rail system.

A rechargeable electrical system to provide electrical energy to operate a locomotive is disclosed. The system can include a tender car unit (TRC) configured to receive and transfer electrical energy. The TRC can include one or more power blocks having power supplies, capacitor modules, and a tether connected the locomotive. The TRC can also have an energy transfer unit to receive or distribute a pulse power energy transfer. The system can further include an energy transfer station (ETS) electrically connected to a local utility grid and configured to store and transfer to and / or receive from energy the TRC. The ETS can include power supplies, capacitor modules, and an energy transfer beam for transferring energy. The system can also include an energy management software to monitor and control a distribution of energy via a central command station having a wireless transmitting device and a processing unit.

The utility model discloses an intelligent switch cabinet assembly for railways, which comprises a switch cabinet side plate, an access hole and an isolation mechanism, and the access hole is arranged on the switch cabinet side plate in a penetrating manner. The beneficial effects of the utility model are that the utility model provides an innovative structural design for solving the problem of insufficient sealing performance of the isolation plate of the access hole in the railway intelligent switch cabinet, and through the synergistic effect of gear rack driving, the self-locking mechanism and the fine tuning assembly, the opening and closing efficiency and sealing performance of the access hole are significantly improved, and the service life of the switch cabinet is prolonged. The gear and rack driving assembly replaces a traditional threaded rod structure, rapid transverse sliding of the isolation plate is achieved through efficient conversion of linear motion and rotary motion, the opening and closing time of the access hole is shortened, and the device is particularly suitable for the high-requirement scene of a railway system for equipment maintenance efficiency. The problem of clamping stagnation caused by mechanical delay in traditional air cylinder or motor driving is avoided, it is ensured that the motion trail of the isolation plate is accurate and controllable, and meanwhile the isolation plate is driven by the fine adjustment assembly to transversely move slightly so that the isolation plate can be tightly attached to the access opening.

A method for generating a map (L) with sensor parameter values ​​(SDP) is described. In this method, a location-dependent, highly relevant field of view (HRSP) of a railway vehicle sensor unit (1) is determined based on map data (LKD). This involves track segmentation and defining a monitoring area (MU) to be monitored by the railway vehicle sensor unit (1) based on the map data (LKD). The location-dependent, highly relevant field of view (HRSP) is then marked on the map data (LKD) based on the defined monitoring area (MU). Location-dependent sensor parameter values ​​(SDP) of the railway vehicle sensor unit (1) are determined based on the calculated location-dependent, highly relevant field of view (HRSP). Finally, the location-dependent sensor parameter values ​​(SDP) are entered into the map (L). Furthermore, a method for tracking a railway vehicle sensor unit (1) is described.A data generation device (40) for generating a map (LK) with sensor parameter values ​​(SPW) is also described. Furthermore, a tracking device (50a) is described. Finally, a rail vehicle (60) is described.

To provide a railway system that can obtain greater regenerative energy while improving the stability of a control system.SOLUTION: In a railway system, an operation management device 20 receives vehicle information about the operation status of a railway vehicle 3 sent from a vehicle control device 11, performs prescribed determination processing based on the vehicle information, and sends the determination result to the vehicle control device 11. The power conversion device 10 has a control pattern that emphasizes the control stability during regenerative operation and a control pattern that emphasizes the regenerative energy obtained during regenerative operation. The vehicle control device 11 selects a control pattern based on the determination result sent from the operation management device 20. The power conversion device 10 controls an electric motor 5 using one of the control patterns selected by the vehicle control device 11.SELECTED DRAWING: Figure 1