115 results about "Freight trains" patented technology

The invention relates to a freight train future speed prediction method and device based on brain-like acceleration and a medium, the method inputs obtained freight train related data into a speed prediction model, a freight train future speed prediction result is output, the speed prediction model adopts a three-level network structure of an MLP encoder-Transformer encoder-MLP decoder, and the speed prediction model is used for predicting the freight train future speed. After the MLP encoder encodes the two paths of input respectively, the two paths of input are input into the Transform encoder for spatio-temporal feature extraction, decoding is carried out through the MLP decoder to obtain a prediction result, the forward propagation process of the Transform is converted into a brain-like instruction sequence, and the brain-like chip is controlled based on the brain-like instruction sequence to carry out operation so as to realize accelerated prediction. Compared with the prior art, the method has the advantages that the static characteristics can be dynamically processed in a time sequence mode, and the prediction efficiency can be improved by fully utilizing the brain-like chip.

The invention relates to a freight train inspection method, device and equipment and an inspection robot. The method comprises the following steps: acquiring inspection environment data corresponding to a to-be-inspected freight train of an inspection robot, wherein the inspection environment data comprises image data and point cloud data; performing path planning processing according to the image data and the point cloud data to obtain a target inspection path from the current position of the inspection robot to the target inspection site; and controlling the inspection robot to go to the target inspection site based on the target inspection path, performing inspection from the target inspection site to obtain target inspection data, and sending the target inspection data to the master console. By adopting the method, the inspection reliability can be improved.

The invention discloses a freight train shunting method based on an unmanned aerial vehicle radar, and belongs to the technical field of freight train shunting. The method comprises the following steps: initiating a shunting task based on a communicator, and automatically distributing an unmanned aerial vehicle based on an initiated shunting request; unmanned aerial vehicle preparation operation: if the distributed unmanned aerial vehicle is an idle unmanned aerial vehicle, taking off from the unmanned aerial vehicle charging warehouse, starting an audible and visual alarm, vertically climbing to a preset height, and then positioning a vehicle head; otherwise, directly positioning the headstock; recognizing the tail of the vehicle and moving the vehicle to a position right above the tail of the vehicle to execute dwelling and stopping monitoring; and finally, a shunting locomotive driver executes shunting operation based on the real-time monitoring information of the unmanned aerial vehicle. The invention aims to take the unmanned aerial vehicle as an intermediate link of the freight train shunting system to replace the work of the personnel of the shunting train in the freight train shunting process, optimize the freight train shunting speed on the basis of guaranteeing the personal safety of the personnel, improve the commuting efficiency of the freight train system, and improve the freight train shunting safety. The intelligence of a traditional freight train railway network system is promoted.

The invention discloses a method for predicting the temperature of an unsteady-state tread brake wheel shoe on a long and large ramp of a railway wagon. The method comprises the following steps: constructing a transient heat transfer finite element model of the wheel shoe; writing a train speed and thermal boundary condition calculation subprogram based on an electric-pneumatic hybrid braking model of the freight train, and integrating the subprogram into a finite element model to realize coupling of train speed calculation and wheel tile transient heat transfer calculation; temperature monitoring points are arranged on wheels and brake shoes respectively, temperature signals are transmitted to the subprograms, and a wheel shoe temperature monitoring module is constructed; the judgment results of the train speed and the wheel tile temperature are associated with tread braking and electric braking parameters through subprograms, and a train braking control module based on feedback control is constructed; inputting train marshalling, brake control, line information and environment information parameters, and calculating temperatures of wheels and brake shoes; according to the method, the problems of wheel tile temperature checking and braking strategy design of freight train long and large ramp tread braking are solved.

The invention relates to a train, in particular a freight train, with a plurality of wagons coupled to one another by mechanical couplings; with a main air line extending through the carriages via coupled air couplings at axial ends of the carriages facing each other and coupled to each other by mechanical couplings; with shut-off devices that include shut-off valves arranged in the area of ​​the air couplings in order to selectively release and pressure-tightly shut off the main air line at the air couplings. The train according to the invention is characterized in that the shut-off valves are designed as air valves that are at least indirectly electrically actuated.

The application discloses a kind of freight train image detection method and system based on Doppler vibration coupling perception, it is related to railway freight car fault monitoring technical field.Joint state vector is constructed by collecting train bogie image, vibration data and Doppler frequency shift and signal-to-noise ratio of millimeter wave communication;Vibration feature map is generated by Fourier transform to vibration data, and spatial attention map is generated to enhance image features;Doppler frequency shift, signal-to-noise ratio and vibration intensity in state vector are used to dynamically calculate suppression threshold, anchor frame size and confidence threshold;Candidate box is generated using dynamic anchor frame size, and after screening by confidence threshold and deduplication by suppression threshold, component information is output.The communication physical layer parameters, mechanical vibration and image semantic depth are coupled, the adaptive adjustment of detection parameters is realized, the problem of high small target miss detection rate and poor detection stability in high-speed running scene is solved, and the fault recognition ability under complex working conditions is improved.

The adsorption type unhooking robot comprises a fixing device and an unhooking mechanical arm, and the fixing device comprises a 3-PRS assembly, an adsorption base assembly, a clamping arm assembly, a worm reducer assembly and a motor lead screw assembly. The device has good adaptability and stability, electronic devices such as an electronic ruler, an ultrasonic distance measuring sensor and a torque sensor are used in the fixing device, and data such as the extending distance of the air cylinder, the distance between the contact block and the corresponding face of the pedal and the clamping force applied to the surface of the pedal by the clamping arm assembly are fed back in real time; convenience is provided for feedback adjustment of the device, and the adaptability of the device is greatly improved. The acting object of the adsorption fixing device is a pedal, and the adsorption fixing device is widely applied to various freight trains and is a standard part, so that the fixing device can adapt to various train types.

The application discloses a freight train load calculation method and device. It is related to the field of railway technology, and aims to improve the operation efficiency of the train. The main technical scheme of the application is as follows: obtaining a specified control parameter value; using a load calculation module to calculate the load of the freight train in real time based on the specified control parameter value and a freight train motion formula. The application is used for calculating the load of the freight train.

The utility model discloses an axle temperature alarm device suitable for a freight train, which belongs to the technical field of axle temperature alarm and comprises a two-way redundant power supply unit, an acceleration acquisition unit, a temperature acquisition unit and a mainboard. The bearing state is judged by collecting temperature and acceleration data at the same time; data can be output through various communication modes such as 485, MVB, CAN and hard wire output; the basic functions of the system adopt redundancy design, and the whole machine operation is not influenced when any module is damaged; in a freight transport system with complex working conditions, the system can adapt to severe environments such as wind, sand, rain and snow, the system can achieve certain waterproof, moisture-proof and flame-retardant effects, and the adaptability to vehicle electromagnetic interference, power supply interference, grounding interference and the like is greatly improved; multiple communication modes coexist, the bearing state can be monitored at any time, and a judgment basis is provided for driving of a driver in time.

The invention relates to the technical field of marshalling plans of freight trains, in particular to a digital platform for compiling a marshalling plan of a railway freight train, which establishes the digital compiling platform for the marshalling plan of the railway freight train and realizes intelligent definition of a group number range and intelligent generation of text description. The planning requirements of business personnel at all levels of the railway are met, the productivity is further liberated, and the production quality and efficiency are improved; according to the method, a planned route algorithm is designed, pre-judgment of a transfer technical station with reconciliation and without reconciliation in the cargo transportation process is achieved, and technical support is provided for intelligent compilation of a railway cargo train marshalling plan. The invention provides a marshalling plan intelligent compilation algorithm, the algorithm is composed of a basic traffic flow method, a path umbrella and a traffic flow convergence algorithm, and intelligent compilation of the marshalling plan of the marshalling station from far to near is realized according to the intensity of the marshalling traffic flow.

This invention discloses a freight train composed of sub-trainsets connected end-to-end. Each sub-trainset consists of a motor car that also functions as a freight car and a group of conventional freight cars it drives. The power supply and pneumatic braking systems of each sub-trainset are independent. Sub-trainsets can be separated from and joined to the main train, enabling rapid unloading and loading of freight. This rationally advances the regional division of labor between rail freight and road transport from arrival and departure hubs to intermediate stations, ensuring that most of the busiest railway lines within 150km can be rationally connected to road freight. This distributed train scheme allows for compact component specifications; it can adopt large-scale passenger car permanent magnet motor drive systems produced in large quantities, accelerating the realization of permanent magnet synchronization of railway drive motors; it uses rubber wheel drive frames, significantly improving the traction force per unit weight, thus multiplying the proportion of trailer-driven motor cars; it makes full use of existing freight cars and existing railways; these cost-saving measures comprehensively promote the "road-to-rail" shift in medium- and long-distance road freight.

The application relates to an automatic telescopic side protection device suitable for a truck train and the truck train, and belongs to the technical field of vehicles. The automatic telescopic side protection device suitable for the truck train comprises a side protection main body which is arranged between a tractor and a trailer. The side protection main body is configured to change its length following the angle of the tractor relative to the trailer. The application embodiment provides an automatic telescopic side protection device suitable for a truck train and the truck train. The side protection main body is arranged, the side protection main body changes its length following the angle of the tractor relative to the trailer, and then the side protection length can be automatically adjusted when the tractor turns, interference with the trailer is avoided, the vehicle body structure is effectively protected from damage, meanwhile, a pedestrian or a vehicle is prevented from entering the vehicle bottom through the gap between the tractor and the trailer, a rolling accident is avoided, and the vehicle and the pedestrian are protected and buffered.

The application discloses a freight train long and large slope brake cylinder exhaust control device and method, and relates to the field of train braking; the freight train pipe is provided with two train pipes, which are a train pipe and a second train pipe; the train pipe is connected with the total air cylinder of a locomotive through a locomotive brake, is used for providing compressed air to the brake of a connected vehicle, transmitting braking and relieving instructions, and the working state of the train pipe is controlled by the locomotive brake; the second train pipe is connected with the total air cylinder of the locomotive through a second locomotive brake, is used for providing compressed air to the brake of the connected vehicle, transmitting braking and relieving instructions, and the working state of the second train pipe is controlled by the second locomotive brake; and a control method is provided; the application is provided with two train pipes, and one additional train pipe is used for reserving and transmitting high-pressure air, and can be used for controlling the relieving time of the brake valve on a long and large slope.

The present application relates to a kind of freight train carriage cleaning robot, comprising: walking body, auxiliary transition body and cleaning device.The freight train carriage cleaning robot provided by the present application can clean train carriage by remote control or automatically.In addition to the traditional magnetic adsorption, push force assistance is also provided, and the air pipe can use the output airflow of negative pressure of three-axis rotating support, when the robot slides down due to insufficient adsorption force between the robot and wall, directly use the output airflow of negative pressure adsorption device to generate push force, so that the robot remains stable on the wall, improve the energy utilization efficiency, save cost, meet the actual application requirements.

The present invention discloses a dispatching and control system and method for freight trains, which comprises the following steps: S1, an information interface device acquires basic line data and environmental information, and sends the information to a train operation status prediction system; the dispatching system interacts with the train control system to acquire train operation data in real time, and sends the information to the train operation status prediction system; S2, a train characteristic identification module establishes a train operation control model; S3, a train operation planning module predicts the train operation status based on an optimization strategy, generates a train operation time and a train control curve, and sends the results to the dispatching system; S4, the dispatching system determines whether the train operation time is reasonable, adjusts the operation plan according to the reasonable train operation time, and sends the train control curve to the train control system; the present invention can accurately predict the train operation status, thereby realizing precise adjustment of the train operation plan and refinement of train control.

1. Name of the product in this design: Railway Freight Train Inspection Robot. 2. Application of this design: Intelligent inspection of railway freight trains. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: a 3D model. 5. The bottom surface of this product is a part that is not easily seen or cannot be seen during use, so the bottom view is omitted.

The invention provides a method and a device for monitoring longitudinal dynamic performance of a heavy-load freight train, and the method comprises the steps: carrying out time synchronization based on global navigation satellite system time and a network time protocol, and collecting signals of a force transducer, a vibration acceleration and a displacement sensor on a coupler; acquiring coupler longitudinal force, longitudinal vibration acceleration, coupler longitudinal displacement and coupler transverse displacement data of multiple sections of the heavy-load freight train on the basis of signals of the force transducer, the vibration acceleration and the displacement sensor; obtaining a transverse component force based on the coupler longitudinal force, the coupler transverse displacement and the coupler deflection radius; obtaining unit displacement longitudinal force based on the coupler longitudinal force and the coupler longitudinal displacement; by means of time synchronism, the distribution condition of the maximum value of coupler longitudinal force, longitudinal vibration acceleration, transverse component force and unit displacement longitudinal force of each section in the time period from pressure reduction to recovery of the truck pipe pressure is analyzed; and judging whether the longitudinal dynamic performance of the heavy-load freight train is normal or not according to the distribution condition.

The invention discloses a train compartment monitoring method and system based on intelligent agency and a freight train, and the device comprises the steps: receiving real-time data of various sensors in a current compartment and summarized data of a previous compartment sent by an intelligent agency node of the previous compartment, and processing the real-time data of various sensors and the summarized data of the previous compartment to obtain a data packet and a transmission command, and forwarding the data packet and the transmission command to a next compartment / ground server by using millimeter waves. According to the train compartment monitoring system, each module of the intelligent agent node processes data from the current compartment and the previous compartment, so that multi-dimensional monitoring data integration is realized, and the integrated data is transmitted to the next compartment and the ground server by utilizing millimeter waves; real-time monitoring and analysis of each compartment of the freight train are realized, difficulty in integration and analysis of monitoring information of the freight train is weakened, and safety guarantee is provided for operation of the freight train.

The application relates to the technical field of train operation scheduling, in particular to a diagram and speed curve integrated generation method for passenger and freight train co-line operation; the diagram and speed curve of the passenger and freight train are optimized, the waiting and letting time of the train in the way is maximally reduced, resource allocation is optimized, operation cost is saved, the utilization rate of the whole line is improved, safe operation of the passenger and freight train in the co-line mode can be ensured, and the utilization rate of the whole line is improved.

The invention relates to a heavy-load freight train braking control method and device based on an automatic train protection system, computer equipment, a storage medium and a computer program product. The method comprises the steps that a brake control instruction corresponding to a heavy-load freight train is determined through an automatic train protection system; according to the brake control instruction, a brake trigger main channel signal, a brake trigger standby channel signal, a pressure maintaining control main channel signal and a pressure maintaining control standby channel signal of the automatic train protection system are determined; according to the brake triggering main channel signal and the brake triggering standby channel signal, a brake triggering signal corresponding to the heavy-load freight train is determined, and according to the pressure maintaining control main channel signal and the pressure maintaining control standby channel signal, a pressure maintaining control signal corresponding to the heavy-load freight train is determined; and according to the braking trigger signal and the pressure maintaining control signal, corresponding braking control processing is conducted on the heavy-load freight train. By adopting the method, the braking control accuracy of the heavy-load freight train can be improved.

The invention provides a heavy-load freight train braking performance monitoring method and device, and the method comprises the steps: synchronously collecting the braking pressure signals of a first locomotive, a second locomotive and a plurality of trucks in a heavy-load freight train based on GNSS time, and obtaining the train pipe pressure data of each section of the heavy-load freight train and the corresponding time label; if the brake pressure signal meets the preset stability condition, the time difference between the first locomotive and the second locomotive and the time difference between the first locomotive and each truck are calculated on the basis of the time labels; and judging whether the braking performance of the heavy-load freight train is normal or not based on the maximum value of the time difference and the distribution dispersion. By analyzing the time difference of the brake pressure signals of all the sections, the brake performance of the whole train can be accurately evaluated, potential fault risks can be found in time, and powerful support is provided for guaranteeing safe operation of the heavy-load train.

The invention provides a cargo train control method and related equipment, and relates to the technical field of rail train control. The method comprises the steps that according to the forward direction of a train, the running mode of the current train is determined, and the running mode comprises long-end forward and short-end forward; determining a to-be-identified target ground transponder in the plurality of ground transponders based on the current parking type and the operation mode of the train; when the train runs until the target ground transponder is recognized, determining a target running distance required by the train to finish parking of the current parking category based on the running mode and the target ground transponder; and based on the real-time speed data and the target driving distance of the train, calculating the accumulated displacement of the train from the target ground transponder position in real time, and adjusting the real-time speed of the train so as to control the train to stop at the target position corresponding to the current parking category. According to the embodiment of the invention, high-precision and self-adaptive automatic parking control can be realized.

The present invention belongs to the technical field of energy efficiency analysis during the operation of rail transit vehicles. Provided are a railway freight train energy efficiency test method, apparatus and system. The method comprises: first, acquiring a coupler force between a first vehicle and a second vehicle in a railway freight train, a coupler force between the second vehicle and a third vehicle, the velocity of the second vehicle within a preset time, and the load of the second vehicle; then, on the basis of the coupler force between the first vehicle and the second vehicle and the coupler force between the second vehicle and the third vehicle, integrating the velocity and force of the second vehicle over time to obtain the energy consumption of the second vehicle; on the basis of the velocity of the second vehicle within the preset time, obtaining a travel distance; and finally, on the basis of the ratio of the product of the load and the travel distance to the energy consumption, obtaining an energy efficiency. The present invention can determine the energy efficiency of a vehicle during actual operation, which is more accurate compared with simulation, thereby providing an effective basis for the energy efficiency calibration of a railway freight train.

The application discloses a method and system for optimizing skylight and train diagram considering fluctuation demand, and relates to the technical field of skylight and train diagram optimization. The method comprises the following steps: obtaining the working state of track equipment, passenger and freight transportation demand, maintenance operation demand, passenger and freight train operation parameters, and maintenance operation cancellation cost parameters; constructing a skylight and train diagram optimization model considering fluctuation demand according to the above information; decomposing the initial model into a series of minimum cost sub-models by using a high-order term dimension reduction method and an alternating direction multiplier decomposition method; solving the minimum cost sub-models by using an improved heuristic algorithm based on an alternating direction multiplier framework, and outputting an optimal skylight scheme and train diagram under specific passenger and freight transportation demand. The application simultaneously considers passenger and freight train operation cost and maintenance operation cancellation cost, adjusts skylight length by changing the number of daily skylight maintenance operations, and flexibly matches passenger and freight transportation demand, so that the service level of trains is improved while the safety of railway transportation organization is ensured.

A freight railway-oriented group train cooperative control system and method are characterized in that according to a group plan, a plurality of freight trains in the same station track need to depart and run in a group mode, in-station group depart cooperative control is carried out, and after the group trains depart and before the group trains arrive at a running terminal point, station-passing cooperative control is carried out on the group trains; and when the group train arrives at a predetermined de-compiling position in the group plan, performing group train de-compiling cooperative control, and de-compiling the freight train which does not run in the group any more. Through distributed cooperative control and train-to-train communication, intelligent marshalling and cooperative operation of multiple trains during departure in the station, passing on the way and de-marshalling are achieved, the station operation process of the long and large marshalling freight train can be optimized, the line passing efficiency and the transportation density are improved, meanwhile, dependence on additional hardware equipment is reduced, and the working efficiency of the long and large marshalling freight train is improved. And efficient, safe and flexible heavy haul railway grouping operation control is realized by taking a software algorithm as a core.

The invention discloses an automatic driving control method for a heavy-load freight train, electronic equipment and a readable storage medium, and the method comprises the steps: obtaining a basic braking force calculation formula of the train according to an air braking force calculation formula of the train, so as to compile a basic braking force characteristic curve of the train; by taking the traction characteristic curve of the diesel locomotive, the basic braking force characteristic curve of the train and preset operation conditions as constraints, generating a speed-mileage curve of the train and a corresponding operation sequence by utilizing a dynamic programming algorithm; and outputting the corresponding operation sequence as a real-time operation command by utilizing a model prediction control method, and sending the real-time operation command to the driver controller, so that the driver controller controls the train to run according to a speed-mileage curve. According to the method, the traction efficiency of the locomotive in the constant power interval can be fully exerted, the running efficiency loss caused by constraint mismatching is avoided, the method strictly fits the control specification, and the illegal operation risk is reduced.

The application relates to an ATP braking test method and device suitable for heavy freight trains. The method comprises the following steps: obtaining a locomotive braking system response to an ATP control instruction, a control demand time length corresponding to different pressure reduction amounts, and a control standard time length set by the ATP for the corresponding pressure reduction amounts; determining a braking test result corresponding to the corresponding pressure reduction amount according to the size relationship between the control demand time length corresponding to each pressure reduction amount and the corresponding control standard time length; and determining a target test result of the locomotive braking system according to the braking test result corresponding to at least one pressure reduction amount. The method can improve the braking test accuracy.

Inspection robots[Railway freight trains]

The present invention relates to a high-speed rail freight train operation optimization method, device, and equipment, comprising: establishing a dual-objective nonlinear model for high-speed rail freight train operation optimization; decomposing it into a train candidate set restriction main model and a freight train candidate set generation submodel in different ways, and a first single-objective optimization model and a second single-objective optimization model; solving the train candidate set restriction main model and the freight train candidate set generation submodel based on the high-speed rail freight train candidate set to obtain the current optimal freight train candidate set with the initial freight train candidate set as the starting point; substituting the first single-objective optimization model and the second single-objective optimization model into the solution to obtain an optimal target value vector; and using a genetic algorithm to solve the optimal target value vector to obtain an optimal chromosome as the final optimal solution output. The present invention combines the genetic algorithm with a column generation algorithm, taking into account both economic efficiency and transportation capacity requirements, achieving matching of freight flow and train flow, and obtaining a feasible high-speed rail freight train operation optimization solution.

The utility model relates to the technical field of passenger and freight trains, in particular to a cover closing device, which is arranged at the end part of a front cover on a bearing, is used for fixing the bearing on a train axle, and comprises an annular connecting plate, a movable plate and a fixed plate, the annular connecting plate is arranged on the end face of the front cover in an attached mode, a positioning unit connected with the front cover is arranged on the annular connecting plate, a backing ring corresponding to a screw hole in the front cover is further arranged on the annular connecting plate, and a fixing groove coaxial with the screw hole in the front cover and used for fixing a bolt is formed in the movable plate. The transmission assembly comprises a driving unit and a transmission unit. The cover closing device can be matched with the number of the screw holes in the end face of the front cover through the positioning unit and the transmission assembly, the cover closing device can be rapidly positioned and installed, the corresponding bolts are synchronously screwed into the corresponding screw holes to be fixed under the driving of external acting force, rapid and accurate positioning of the multiple bolts is guaranteed, and the cover closing device is convenient to use. The operation is simple; and the assembly efficiency is improved.