425 results about "Train" patented technology

The invention discloses a train speed measurement and location method and a train speed measurement and location system based on a network distributed redundancy framework, wherein the method comprises the step of concurrently operating a first speed measurement and location control unit and a second speed measurement and location control unit having the same physical structure at the head end and the tail end of a train to acquire and display a final result; the information of train speed and location is measured through a combination manner, so that the measurement accuracy is effectively improved; and on the other hand, the information of sensors at the head end and the tail end of the train can be shared by means of redundancy network without increasing the speed measurement and location sensor, and the reliability of the system is improved.

The invention discloses a method and a system for the safety caution of railway operation, which is used for guaranteeing the safety of railway running. The method for the safety caution of the railway operation comprises the following steps of: measuring the distance between a train and an operational site periodically; and when the distance between the train and the operational site reaches a warning value or the time which is calculated according to the speed of the train and is required by reaching the operational site by the train reaches a warning value, sending a warning signal to the operational site. The safety caution system for realizing the method comprises a distance measurement system for measuring the distance between the train and the operational site and a warning device for sending the warning signal according to a measuring result of the distance measurement system. By utilizing the method and the system, staffs working on railways can get train approaching information in time to make corresponding preparations in time and leave railways.

The invention belongs to the field of railway train operation dispatching and commanding, and relates to a novel train operation intelligent adjusting method. According to the method, fault information in a disaster prevention alarm monitoring system, temporary speed limiting information sent by a driving dispatching desk and running diagram information of a train under a fault are fully utilized;a minimum operation time division calculation module is added in the RBC database and is responsible for calculating the minimum operation time division of the remaining intervals and the train operation curve with the minimum energy consumption under the time division requirement; the result is fed back to the driving dispatching desk; a running situation prediction module predicts the time foreach train to arrive at a subsequent station, and the time, the speed and the position during running in the intervals; by taking the minimum total delay time of the trains on the line as an optimization target, the departure sequence and time of each train based on a first-in first-out or reinforcement learning method are determined, offline training is carried out continuously, and after the training is completed, the training parameters are stored in the model for intelligent adjustment of the train running diagram under the influence of the delay and inhibition of delay propagation on theline.

The embodiment of the invention provides a train working diagram real-time adjustment method and system. The method comprises the following steps that firstly, time reporting information of a target train is acquired, and a train working diagram is updated, wherein the time reporting information comprises a time reporting moment and a time reporting position; then a current train number plan of the target train is adjusted when the time reporting position is not the destination of the current train number plan; and finally, when the time reporting position of the target train is the destination of the operation plan of the target train, collision detection and repair between the target train and an adjacent train are carried out, and a novel train working diagram is generated. According tothe method, automatic adjustment of the train working diagram can be realized, and it is ensured that the obtained novel train working diagram is feasible; and moreover, adjusting is carried out within a certain time range through the method, and only the current time reporting train is adjusted at a time, so that the automatic adjustment of the train working diagram has real-time performance.

The invention relates to a train running chart adjusting method. The method is characterized by comprising the steps of: determining the number of trains to be increased according to passenger flow information; corresponding to each added train, selecting a plurality of adjustment object groups consisting of a plurality of adjacent trains in the current running chart, and ensuring that the interval between the trains is greater than or equal to the minimum departure interval after the corresponding trains to be added are added into the adjustment object groups; based on each adjustment objectgroup, calculating the running time of each train after the train to be added is added, and generating an updated train running chart; and sending the updated train running chart to the ATS. Accordingto the train running chart adjusting method, compared with the original train running chart of the adjusted train in the updated train running chart after adjustment, the time adjusting amount is assmall as possible, and the stability of a running system in the train running chart adjusting process is ensured.

The invention discloses a train operation plan adjustment risk control method for emergency uncertainty, and the method comprises the steps: building an uncertainty train operation plan adjustment model by minimization of risk value of train arrival and departure late cost as an optimization target, and adjusting the arrival and departure time and sequence of a train, thereby achieving the adjustment of the train operation plan; when the minimum station operation time constraint, the minimum interval operation time division constraint, the minimum tracking interval constraint, the graph-baseddriving constraint before emergency, the interval blocking constraint are met, indicating that a station does not allow advanced dispatching constraint; when a train sequence in a locked range is adjusted, according to different risk preference conditions of a scheduling decision maker, selecting the corresponding train operation plan adjusting scheme, effectively handling uncertainty of emergencies, and controlling risks for trains being late so that safety of the high-speed rail dispatching command system is improved, and train dispatching intellectualization is achieved.

The invention discloses a foreign invasion limiting monitoring system orienting to railway disaster prevention, which comprises a power supply module, a switch module and a power grid module, wherein the power supply module is used for supplying power supply to the power grid module; the power supply module is connected with the power grid module through the switch module; the switch module is connected with a train control system; the power grid module is used for monitoring the information about the foreign invasion limiting and controlling the on/off state of the switch module; the switch module is used for transmitting an indicating signal to the train control system according to the on/off state; and the train control system receives the indicating signal and controls the running/stopping of a train. The foreign invasion limiting monitoring system can realize the real-time monitoring and unmanned monitoring on the information about the foreign invasion limiting of the railway. Meanwhile, the foreign invasion limiting monitoring system has a simple structure and is lower in cost; the combination of double set of power grid modules and multiple sets of dropping object relays is adopted; the usability, safety and reliability of the system are increased; and the happening of accidents such as train derails are effectively prevented.

The invention relates to a train interval evacuation method, a storage medium and a control device. The method comprises the steps of determining that evacuation is needed since a train needs to be parked in an interval between stations; in the pre-evacuation stage, controlling the train to run to an evacuation parking point beside an evacuation exit of the interval so as to park, and prohibitingother trains which do not need to be evacuated from entering an evacuation protection area of the interval, wherein the evacuation protection area comprises a track area and the evacuation parking point beside the evacuation exit; and in the evacuation stage, opening a train door of the train, guiding personnel on the train to evacuate from the evacuation exit, and prohibiting the other trains which do not need to be evacuated from entering the evacuation protection area of the interval. According to the train interval evacuation method, the storage medium and the control device provided by the invention, the train can be automatically subjected to interval evacuation, and the safety of the personnel on the train is ensured.

The invention discloses a high-speed railway train arrival time prediction method based on a scheduling command system. The high-speed railway train arrival time prediction method comprises the following steps that historical data of the scheduling command system is subjected to standardized treatment, a space-time state data processing model is constructed based on a block section and a train discretization trajectory, the space-time data of train operation is extracted and then the data is subjected to standardizing treatment; the historical driving data after standardized treatment is analyzed, and operation time parameters of the block sections of various types of trains in the actual operation environment are estimated; and using the estimated operation time parameters of the block sections and combining with the real-time operation environment state and train state, the signal state in the future period of time can be predicted, and finally, the prediction of the arrival time ofthe train is realized through the mutual constraint and interaction relationship between the train and the signal state. According to the method, the accuracy of the prediction result can be improved,and the reliability of the prediction result is ensured.

An embodiment of the invention provides a method and system for monitoring trains in metro depots based on UWB. By means of the method, train head distance information and train tail distance information which are determined based on a UWB technology are obtained; train head position information is determined based on the train head distance information; train tail position information is determined based on the train tail distance information; and finally, based on the train head position information and the train tail position information, the occupation range of a target train on a train running track is determined, and the target train is positioned. Third-party equipment data are introduced in the entire positioning process, a train head and a train tail of the target train are accurately positioned through the two-dimensional precise ranging capability of the UWB and the triangular positioning principle, the occupation scope of the target train on the train running track can be determined, the accurate train parking position can be ensured by the metro depots, whether the target train is complete or not can be further determined, and the complete marshalling of the target train is ensured.

The invention discloses a method and device for measuring air resistance of a train. According to the characteristic that the air resistance of the train is substantially unrelated to the train mass and other resistances are in direct proportion to the train mass in the total resistance of the train, the air resistance of the train and other resistances of the train are decoupled from each other through train inertia measurement and total resistance conjoint analysis under different load conditions; therefore, the measurement problem of the air resistance of the train is solved; effective means are provided for completion of operation resistance formulas of middle and high speed passenger trains, evaluation of energy conservation design of the train, high speed train power configuration, train aerodynamics researches and the like; and important engineering significances are obtained.

The invention discloses a train arrival tracking interval time compression method based on arrival and departure line application, and the method comprises the steps: obtaining a calculation method ofarrival tracking interval time under a segmented unlocking condition through the analysis of a train tracking process under the segmented unlocking condition, and compressing the train arrival tracking interval time based on an arrival and departure line application scheme optimization method. The method has the advantages that the method is simple; on the basis of an existing train receiving route segmented unlocking technology, through a reasonable arrival and departure line application optimization method, the time from the clearing of associated turnouts to the clearing of throats of a preceding train in the train arrival tracking interval time is shortened, the compression effect on the train arrival tracking interval time of domestic large railway passenger stations is good, and theapplication range is wide.

The invention discloses a heavy-load train speed tracking control method and system, and the method comprises the steps: building a multi-particle unit shift model of a train, enabling an error between the actual operation speed of the train and a target speed to be minimized by adopting an auto-disturbance rejection control method based on robust self-adaption, and therefore, the anti-interference capability of the heavy-load train is improved, and the high-precision tracking control of the train on the target speed is realized.

The invention provides a dynamic safety analysis method for a train virtual formation. The method comprises the following steps: S1, obtaining train parameter information and line operation parameter information in a line; s2, establishing a single-vehicle motion model of the train, and obtaining a state updating equation of the train; s3, establishing a virtual formation train operation model under the relative coordinate system according to the state updating equation; s4, calculating the minimum safety distance between trains; s5, establishing a space-time set C, and calculating the distances between different trains in real time through the space-time set C so as to judge whether the trains are in a dangerous state or not. According to the method, the distance between the two trains is circularly calculated in real time through the space-time set C, so that risks are reduced to the maximum extent, and the train operation safety is improved.

The invention relates to a dual-system hook of railway train, wherein it comprises: a joint hook and hook with connecting pin hole, and two U-shaped chain hooks, while the connections between them are in U-shaped connected via connecting pins, to form the movable joint whose joint hook and chain hook can rotate; based on the hook type, it can rotate to the drawing direction, to connect two systems; the chain hook has simple structure, long service life and high reliability; and the joint hook and chain hook can meet the demands that the track heights at each track are same, and meet the demands of total load as 3000t; and the invention can use the general hook frame and national buffer of 13-th hook, to transmit the drawing force and impact force between vehicles.

The invention discloses a train operation safety protection system without secondary train occupation detection equipment, and the system comprises an initial train position marking module which enables a dispatcher to mark the section occupation information corresponding to the initial train positions of all trains manually through ATS before the system is powered on, a train tracking initialization list module which is used for initializing a train tracking list by the ATS according to the marked section occupation information and sending the train tracking initialization list to the trackside ZC; and a running train position tracking module which is used for tracking the positions of all trains by the trackside ZC in the running process of the trains. According to the invention, the train operation safety protection can be realized when no secondary train occupies the detection equipment, and the safety protection problem of the signal system when no secondary train occupies the detection equipment for auxiliary protection is effectively solved.

The invention relates to a train identification system and a method thereof, a train safety inspection system and a method thereof, wherein, the train identification system comprises a remote detection part (10), which is used for obtaining the overall characteristic information of the train to be inspected by a remote monitoring mode; And an identification module (20) for judging the type and/orthe traveling condition of the train to be inspected according to the obtained overall characteristic information. The invention can flexibly arranged the remote detection component, and has multipleidentification opportunities in the process of the train traveling from far to near through remote monitoring, so as to improve the identification accuracy, and can carry out the identification in advance so as to give the result in time. In addition, by acquiring the overall characteristics of the train, it can provide a comprehensive basis for judging the train type and/or travel situation, further improve the accuracy of identification, and have a good adaptability to different trains.

The invention provides a control method and device for a train based on moving block. The method comprises the steps that an upgrading requirement of a train to be upgraded is received, wherein the upgrading requirement includes a real-time position of the train to be upgraded; a train entering sequence of a train section where the train to be upgraded is located is obtained, and a train in frontof the train to be upgraded is determined; traveling permission information of the train to be upgraded is calculated according to the communication condition and position of the front train; and thetraveling permission information is sent to a train-mounted device of the train to be upgraded for the train-mounted device to restore upgrading according to the traveling permission information. According to the technical scheme, the traveling permission information of the train to be upgraded is calculated according to the communication condition and position of the train in front of the train to be upgraded to make the train restore the upgrading state, the upgrading efficiency is greatly improved, and thus the running efficiency of the train is improved.

The invention discloses a method for determining a hinge angle of linear stable reversing of a semitrailer train. The hinge angle is divided into a stable domain and a feasible domain according to thechange characteristics of the hinge angle of the semitrailer train during backing-up driving, so an induction prompt can be given to prevent a driver from reversing the semitrailer train to a dangerous or unreasonable working condition, then the safety and the linear reversing efficiency of the semitrailer train during reversing can be improved, and double guarantees are provided for the safety and the logistics efficiency of the driver.

The invention provides a train screening method and a train screening system based on a moving block. The method comprises the following steps of: receiving the current position information of a trainand the occupation information of an axle counter section; acquiring the occupation conditions of the axle counter section where the train head is positioned and the front next axle counter section according to the current position information of the train and the occupation information of the axle counter section; judging whether the occupation condition of the axle counter section where the train head is positioned and the front next axle counter section satisfy the manual pre-screening condition or not; and if yes, sending a manual pre-screening request message to vehicle-mounted equipmentso as to carry out manual pre-screening operation, and calculating running permission for the train after receiving a confirmation finish message which shows that there is no other train in a certainrange in front of the train. According to the method and the system provided by the invention, when the train satisfies the manual pre-screening condition, a driver watches whether there is another train in the front so as to manually assist the RBC to realize the function of pre-screening the train, thereby realizing train upgrading ahead of time and improving the upgrading efficiency of a heavyhaul train.

The invention provides a method and device for judging the running direction of a train based on satellite positioning. The method comprises the steps of enabling on-board equipment ATP to receive satellite data through a satellite receiver, and carry out the matching operation with an electronic map; executing a satellite positioning algorithm of an unknown orbit, and then carrying out train orbit judgment; after the orbit is successfully judged, executing a satellite positioning algorithm of a known orbit, and judging the running direction of the train; and after the running direction of thetrain is judged successfully, completing initial positioning of the train. Aiming at line characteristics, the invention designs the method for judging the running direction of the train based on satellite positioning according to the vehicle-mounted electronic map, so that the train can finish initial positioning of the train in a railway line interval, and the running efficiency of the train isimproved.