279 results about "Train" patented technology

The invention provides a train forward operation risk assessment method based on an operation risk domain, and the method proposes the concept of the operation risk domain based on a field theory, constructs a train forward operation risk assessment model based on the risk domain, and constructs operation risk domain models in two scenes of train tracking and foreign matter invasion. And the forward operation risk of the train is evaluated in real time, and management and control measures are given, so that the real-time and quantitative evaluation of the forward operation of the train is realized, and the construction of an autonomous safety guarantee system of rail transit is promoted.

The invention relates to the technical field of railway transportation safety, in particular to a multi-source data fusion train area sensing and active protection system and method.The method comprises the steps that a data acquisition module obtains obstacle sensing data in front of a train and receives state and position data reported by a personnel terminal; the space-time reference and electronic fence management module provides unified positioning and map services and generates an electronic fence according to a plan; the multi-source situation fusion module carries out fusion processing on the information to generate a global dynamic situation; the real-time risk quantification module calculates a collision time TTC based on the situation, and outputs an evaluation result according to a dynamic risk model; the intelligent early warning decision-making module generates a graded early warning instruction containing specific action guidance; and finally, the early warning cooperative execution module synchronously distributes the instruction to the train and personnel terminal. According to the invention, the conversion from passive monitoring to active early warning is realized, and the safety protection capability of driving and operation in a complex environment is improved.

The embodiment of the invention provides a data processing method and electronic device.The data processing method comprises the steps that operation data in a railway information system are obtained, and the railway information system is used for indicating a system for dispatching and controlling a train; under the condition that an abnormal event is determined based on the operation data, abnormal mapping information is obtained, a to-be-confirmed abnormal root cause corresponding to the abnormal event is determined according to the abnormal mapping information, and the abnormal mapping information is used for indicating a mapping relation between each abnormal event and at least one abnormal root cause; abnormal data features of the abnormal event are obtained, a target root cause in the abnormal root causes to be confirmed is predicted based on the abnormal data features, and the target root cause is used for indicating the root cause triggering the abnormal event in the operation of the railway information system. According to the method, the dependence on manpower in the fault analysis process can be reduced, the fault analysis efficiency is improved, fault attribution is carried out on the abnormal event based on the abnormal mapping information, and then the attribution accuracy is improved.

The embodiment of the invention provides an end changing operation method and device of a train, and the method comprises the steps: determining an end changing direction of a target train in response to an end changing command for the target train, and determining a train operation section corresponding to the target train according to the end changing direction; first movement authorization corresponding to the target train is calculated according to the train operation section, and train route information is inquired according to the end changing direction; the route permission of the target train for the train route information is determined, the first movement authorization is updated according to the route permission, second movement authorization is obtained, and the target train runs in the end changing direction according to the second movement authorization. According to the method, the limitation condition that a turn-back area is formulated in an electronic map in advance is removed, and the movement authorization can be automatically calculated only by using the train operation section, so that the in-situ end changing use is more flexible, and the abnormal degradation mode and the influence on the subsequent normal operation of the train caused by coping with disaster emergency situations of the train are avoided.

The invention provides a train material volume detection method, device and equipment based on millimeter wave radar, and relates to the technical field of railway transportation intelligent detection and three-dimensional point cloud data processing. The method comprises the following steps: acquiring point cloud data obtained by scanning a train through a millimeter wave radar, and preprocessing the point cloud data to obtain a train main body point cloud; wherein the point cloud data comprises position coordinates of points; on the basis of density change characteristics of the train main body point cloud in the train advancing direction, carriage connection gaps are recognized; based on the compartment connection gap and the preset compartment length, compartment section point clouds are divided from the train main body point clouds; and based on the coordinates of the points in the compartment section point clouds in the train height direction, material surface point clouds are extracted, and material volume calculation is carried out based on the material surface point clouds. The system can stably run in a loading building environment with large dust, strong shielding and complex illumination, and provides a reliable technical means for real-time loading monitoring of bulk materials of a train.

The invention discloses a method for generating a post-earthquake seismic oscillation parameter field in a peripheral area of a railway by considering a topographic site, which can consider the influence of topographic features on seismic oscillation, improve the estimation precision of the post-earthquake seismic oscillation parameter field and provide technical support for post-earthquake inspection and driving order recovery. Meanwhile, railway workers can carry out targeted field inspection according to the mileage range, the inspection range is reduced, the emergency disposal time is shortened, the road network post-earthquake emergency disposal capacity is improved, the post-earthquake loss is reduced, and the railway transportation safety is guaranteed; moreover, the calculation work can be completed before the earthquake occurs, the calculation amount is relatively small after the earthquake occurs, and the actual demand of quick response after the earthquake of the railway can be met; besides, earthquake rapid report and station observation data from an earthquake station network center are comprehensively applied, information of a railway self-built station is fused, information utilization is comprehensive, and meanwhile, earthquake oscillation around the railway is better reflected.

The invention discloses a train working diagram station track adjustment method and system fused with multi-dimensional inspection. The method comprises the steps that train operation adjustment result data containing station track change information are received; generating an adjustment result dialog box which can be switched between a simplified version and a detailed version according to the adjustment result data; in the adjustment result dialog box, in response to a screening condition input by a user, screening the adjustment result data, and carrying out statistics on the screened data; displaying station track change entries in the adjustment result dialog box, and highlighting the unconfirmed station track change entries with a first visual identifier; in response to an interaction operation of a user on the station track change item, providing a station track adjustment option; and based on the station track adjustment option selected by the user, executing a corresponding station track adjustment operation or multi-dimensional feasibility check, and updating a station track adjustment result. The railway transportation quality can be improved, and the working intensity of dispatchers is relieved.

The invention discloses a train operation and maintenance management method and system, a medium and a product. According to the method, a vehicle-mounted sensor is adopted to comprehensively collect system operation data of train power, suspension and the like, and a fault risk prediction model is input to obtain high, medium and low fault risk levels; generating a maintenance train priority list in combination with a next-day train scheduling plan, and determining a maintenance sequence; according to the priority and the maintenance resources, making a maintenance plan covering task allocation, team arrangement, a bill of materials and estimated time; and if the actual maintenance is overtime, dynamically adjusting the plan. According to the method, accurate prediction and evaluation of the train fault risk are realized, the train maintenance plan is constructed and dynamically adjusted in combination with scientific distribution of maintenance resources, the accuracy and efficiency of train operation and maintenance are effectively improved, and a powerful guarantee is provided for safe and efficient operation of the train.

The invention relates to a method for operating a system for the automated uncoupling of two rail vehicles (10, 20), wherein each rail vehicle (10, 20) has at least one controllable coupling (11, 21) at each end of the vehicle and a control computer (12, 22) that controls this at least one coupling (11, 21) and is equipped for data communication by means of an address that uniquely identifies the respective rail vehicle (10, 20), and wherein in a first method step, a released position of each coupling (11, 21) that causes the uncoupling of both rail vehicles (10, 20) is determined by means of digital command transmission to at least one of the two control computers (12, 22).21) is realized. This is intended to achieve, in a cost-effective manner, the resetting of an automated rail vehicle coupling from a released buffer position to a coupled position and at the same time achieve a high process reliability of train formation processes in shunting yards. According to the invention, this is achieved by determining, in subsequent further process steps, first and second geoposition data indicating the geographical positions of both rail vehicles (10, 20) and exchanging them between the control computers (12, 22) of both rail vehicles (10, 20) by means of a data relay (30). In the control computer (12) of the first of the two rail vehicles (10, 20), the distance (D) between the two rail vehicles (10, 20) is determined from the determined first geoposition data of the first rail vehicle (10) and the second geoposition data of the second rail vehicle (20) received from the data relay (30).and in this control computer (12, 22) a control signal is generated to move the at least one coupling (11, 21) of the first of the two rail vehicles (10, 20) into a coupling-ready position as soon as the determined distance (D) between the two rail vehicles (10, 20) exceeds a predefinable limit value.

The invention relates to the field of rail transit, in particular to a train state fault analysis system based on data analysis. Comprising a receiving module, a determining module, a judging module and an output module, according to the invention, the state parameters of the monitored equipment are received in real time through the receiving module, so that the confirmation module confirms the direct associated equipment and the secondary associated equipment of any equipment according to the electrical connection relationship, and the associated equipment is distinguished; the judgment module sequentially traverses the direct associated equipment and the secondary associated equipment according to the abnormal parameters and judges the running states of the equipment, the abnormal equipment is found in time, the diagnosis result is output through the output module, faults are found in time, multi-dimensional data collection and analysis processing are combined, and the fault diagnosis accuracy is improved. And efficient processing and analysis of train fault data are realized.

The invention relates to a visual inertial positioning method and device for a railway train fused with scene information, and the method comprises the steps: building four geometric constraint models through combining a visual inertial odometer with the geometric features of a railway environment; the constraint models are respectively a sleeper advancing distance constraint model, a camera-rail surface absolute height constraint model, a rail vanishing point constraint model and a non-integrity constraint model. And the scene prior information is deeply fused with the visual inertial odometer. In a sliding window optimization framework, an IMU pre-integration residual error, a visual reprojection residual error and a geometric constraint residual error are jointly optimized through a dynamic marginalization strategy, multi-source information collaborative pose estimation is realized, high-precision visual inertial positioning of a train is realized, and particularly, excellent robustness is shown in an environment in which GNSS signals are shielded.

The present invention relates to a method for checking a train count in a section, a medium, and a system. The method comprises the following steps: configuring check rules, and reading all the check rules from a configuration file by means of OGT software; traversing one-way trips of all trains on the basis of a timetable, and when the one-way trips match any section in the check rules, storing section entering and leaving records into a section entering and leaving record list; when traversal has been completed, sorting the section entering and leaving record list in chronological order of time points to obtain section entering and leaving information of all the trains along the time axis; traversing the section entering and leaving information, and obtaining a total train count in each section by means of a counter; and when the total train count in the section is greater than or equal to a train count upper limit, recording one piece of alarm information upon each change of the counter. Compared with the prior art, the present invention can achieve refinement of timetable compilation by checking counts of trains simultaneously present in sections, thereby improving operation efficiency and ensuring safety.

The invention relates to a control method and device for switching ZC train positioning information between a VOBC and an OBS and a medium. The method comprises the steps that S1, whether a position message sent by the VOBC is legal or not is judged; s2, updating VOBC position information according to a position message sent by the VOBC; s3, judging whether the position message sent by the OBS is legal or not; s4, updating OBS position information according to the position message sent by the OBS; s5, judging a source of the position information used by the train, and updating the position information and the control information of the train; s6, whether switching occurs or not is judged according to the updated train position information, and whether ZC triggering systematic blocking conditions are formed or not is judged; s7, updating the train automatic safety protection AP according to the train position information and the axle counting occupation state information; s8, calculating movement authorization information of the train; and step S9, sending a train control message or a special control message to the VOBC and the OBS. Compared with the prior art, the method has the advantages of efficient fusion of double-source positioning, safe switching, accurate control and the like.

1. Name of the design product: Train (modern technology theme). 2. Use of the design product: For retro-style technology general rail train, for scenic spot, small and medium-sized city transportation tool, passenger transport, sightseeing, static display, leisure and entertainment, etc. 3. Design points of the design product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The invention relates to a safety assessment method for a global navigation satellite system (GNSS)-based train positioning system (GNSS train positioning system for short), and aims to improve the operation safety level of a GNSS train positioning-based train operation control system in a complex environment. According to the method, a modularized and hierarchical structure model is constructed by adopting a colored Petri net modeling tool for a GNSS train positioning system, and a data acquisition and interference injection module, a data fusion module, a map matching module and a safety performance evaluation module are included. And integrating indexes such as the position error, the protection level, the alarm limit value and the like to construct a system safety judgment mechanism. Through simulation analysis of various typical operation scenes, the operation safety state and the error evolution trend of the system under the interference condition can be output. According to the method, whole-process formal modeling and safety evaluation of the GNSS train positioning system are achieved, and the method has good universality, visualization and engineering adaptability and is suitable for a railway train operation control system with high safety requirements.

In one embodiment, a method includes capturing, by a machine vision device, an image of an object in a railway environment. The machine vision device is attached to a first train car that is moving in a first direction along a first railroad track of the railway environment. The method also includes analyzing, by the machine vision device, the image of the object using one or more machine vision algorithms to determine a value associated with the object. The method further includes determining, by the machine vision device, that the value associated with the object indicates a potential deficiency of the object and communicating, by the machine vision device, an alert to a component external to the first train car. The alert comprises an indication of the potential deficiency of the object.

This invention relates to a control method, device, equipment, and medium for train slippage protection. The method uses a signal system to monitor the train braking process in real time, automatically identifies when the train enters a slippage state and performs displacement slippage compensation. When the duration of the slippage exceeds a set threshold, the method handles the train's loss of position and outputs emergency braking to stop the train. Compared with existing technologies, this invention has the advantages of reducing the impact of train slippage on operations while ensuring operational safety.

The invention provides a method and a system for quickly positioning railway intrusion personnel based on visual estimation, belongs to the technical field of target identification, applies an advanced monocular depth estimation and positioning method to rail transit, and solves the potential safety hazard of train operation caused by insufficient personnel intrusion position along the current railway. According to a pre-constructed target prior mapping relation between image pixel coordinates and actual geographic coordinates, after an invader is detected, the pixel coordinates of the invader are directly mapped to corresponding actual longitude and latitude positions; and if the target prior mapping information does not exist, calling a coordinate conversion algorithm according to the pixel coordinates to realize conversion from the pixel coordinates to latitude and longitude coordinates, realizing dynamic conversion from an image plane to a global geographic coordinate system, and obtaining actual latitude and longitude positioning of personnel invasion. According to the invention, high-precision positioning can be carried out on the invading personnel in the rail transit scene only by means of the monocular camera, so that the problem that personnel invasion is difficult to check in an existing system is solved, and the safe operation level of a railway is improved.

The application discloses a pantograph operation state monitoring analysis method and system, relates to the field of track train monitoring, and mainly has the following scheme: through comprehensive analysis on vibration data, contact force data, contact point temperature data and abrasion data, whether a pantograph pressure control instruction is triggered, whether a train speed limit instruction is triggered and whether a pantograph operation failure exists are judged, a passive early warning strategy is changed into an active regulation and control, the operation state of the pantograph can be more comprehensively evaluated, through intelligent monitoring and prediction technology, the frequency and cost of manual detection are reduced, the evaluation accuracy is improved, and meanwhile, maintenance cost and safety risks caused by failure expansion are avoided.

Visibility of a railway infrastructure asset (e.g. trackside railway signal 104) to a driver 107 of a train 103 on a railway track 102 is determined using a computer model modelling (e.g. in three dim

The application provides a high-precision railway map generation method and system based on one-way trajectory correction, relates to the technical field of heavy-load railway transportation, and comprises the following steps: simultaneously collecting a continuous image sequence and spatial attitude data of a current train in a driving process; determining pose change data of the current train based on visual feature points in the continuous image sequence; performing synchronous positioning and map construction based on the pose change data and the spatial attitude data to generate an initial electronic map; and correcting the mileage and trajectory of the current train in the initial electronic map based on mileage information and image positions of preset markers in the continuous image sequence to generate an electronic map corresponding to the driving process of the current train. The method and system provided by the application improve the generation efficiency and accuracy of the railway electronic map.

The invention relates to a method and device for controlling a train inspection robot to inspect, and the method comprises the steps: obtaining various real-time inspection data of an inspection area through inspection navigation equipment on the train inspection robot, and then carrying out the calculation through combining the map data of the inspection area to obtain an optimal driving path for reaching an inspection target position, and the train inspection robot is accurately navigated to a specified inspection target position, so that effective inspection of the train is realized, and the safety of railway transportation is finally ensured.

The present application provides a kind of railway rescue station and personnel evacuation and smoke control method of service tunnel.The railway rescue station includes service tunnel, evacuation horizontal passage, protective door, smoke exhaust air duct, fireproof partition sealing device, smoke exhaust fire damper, fan, jet fan, smoke outlet, wind speed and direction sensor and evacuation platform.The present application provides a kind of evacuation and rescue scheme of smoke exhaust air shaft near railway tunnel emergency rescue station, realizes directly using advance guide pit (service tunnel) for geological exploration as smoke exhaust passage, avoids setting smoke exhaust air duct on the top of service tunnel, causes construction risk and engineering investment to increase due to the fact that service tunnel section is too large.In addition, using wind speed and direction sensor and jet fan, prevent smoke from spreading to both ends of rescue station fire tunnel under the condition of ensuring smoke exhaust effect, improve the safety of other trains in super-long tunnel, and reduce the influence range of smoke on tunnel facilities, which is beneficial to rapid recovery after disaster.

The invention relates to a train spacing determination method and device, computer equipment and a storage medium, and belongs to the technical field of railway transportation. The method comprises the steps that dynamics information and positioning measurement information of adjacent trains are acquired; wherein the adjacent trains comprise the first train and the second train. And according to the dynamic information and the positioning measurement information, a first interval and a second interval between the adjacent trains are determined. And determining the train spacing between the adjacent trains according to the first spacing and the second spacing. According to the method, when the distance between the adjacent trains is determined, the positioning measurement information of the adjacent trains is considered, the dynamic information of the adjacent trains is also considered, and compared with a traditional method for determining the distance between the adjacent trains only by means of a satellite positioning system, the method is more comprehensive in consideration, and the accuracy of the distance between the adjacent trains is improved. And the obtained train distance between the adjacent trains is more accurate.

This invention provides a monitoring system, monitoring method, and monitoring program that can improve the safety of platforms equipped with platform screen doors. [Solution] The monitoring system 10 includes a state determination unit 113 that determines the presence or absence of trains on the platform of a railway station, their running status, and the open / closed status of the platform doors; a detection area setting unit 114 that sets a first detection area that targets the entire area between the platform fence and the edge of the platform when no train is stopped on the platform and the platform doors are closed, and sets a second detection area that targets the area between the platform fence and the edge of the platform, excluding the area facing the train's vehicle doors and the platform doors when a train is stopped on the platform and the platform doors are open.

The utility model belongs to the technical field of speed reducing devices, and particularly relates to a speed reducer for a freight rail train, which comprises a mounting component, a mounting seat, mounting plates arranged at four corners of the mounting seat, thread bushings arranged on two sides of the mounting seat, thread feeding rods arranged in inner cavities of the thread bushings, and a hand wheel arranged at one end of each thread feeding rod. The speed reduction assembly comprises a movable plate arranged at the other end of the threaded feeding rod, an elastic piece arranged on the opposite side of the movable plate, a clamping plate arranged on one side of the elastic piece, a mounting groove formed in the surface of the clamping plate, a damping fin arranged on one side of the clamping plate and a mounting block arranged on one side of the damping fin, and the damping fin is connected with the clamping plate through the mounting block and the mounting groove; the structure is reasonable, the damping fin is convenient to replace in the using process, the maintenance cost is reduced, and the flexibility and the practicability are high.

The application provides a railway map matching method and system based on a Beidou navigation system and an odometer, relates to the technical field of heavy-haul railway transportation, and comprises the following steps: acquiring first state data of a train based on the Beidou navigation system, and acquiring second state data of the train based on the odometer; performing fusion processing on the first state data and the second state data, determining an observation state of the train at each moment and corresponding state transition probability and state emission probability; and determining an optimal matching path of the train at each moment based on the observation state of the train at each moment and the corresponding state transition probability and state emission probability. The method and system provided by the application improve the positioning accuracy and stability of heavy-haul railway vehicles in complex environments.

The invention provides a risk state assessment method and device for a high-speed railway train control system, and the method comprises the steps: carrying out the processing of to-be-assessed train data based on an operation safety field model of a train, and obtaining the safety field intensity of the train; the operation safety field model is determined based on static field intensity, dynamic field intensity and effect field intensity; the static field intensity comprises the field intensity corresponding to the line parameter of the train, the dynamic field intensity comprises the field intensity of at least one of the running parameter and the performance parameter deviation coefficient of the train, and the effect field intensity is determined based on the additional field intensity generated by the static field intensity and the dynamic field intensity through the superimposed effect; and calculating a safety field force according to the train safety field intensity, and evaluating the risk state of the train according to the safety field force to obtain a risk state evaluation result. The method provided by the invention improves the risk assessment accuracy when the train runs under severe geological conditions and changeable environments, and further improves the running safety of the train.