418 results about "Rail transportation" patented technology

The invention discloses a multi-vehicle cooperative intelligent marshalling speed regulation method for railway transportation of power batteries. The method comprises the following steps: establishing state characteristics of each transportation truck, and constructing a position sensitive damage cost function for evaluating the risk cost of each truck at different marshalling positions according to the state characteristics; in the railway vehicle transportation process, an event-driven time pane dynamic optimization method is adopted, a vehicle marshalling and train speed control curve is dynamically updated according to state parameters collected in real time, and in the optimization process, a variable damping distribution strategy of a coupler and a cooperative vehicle speed curve generation algorithm are adopted, so that the train speed control curve is dynamically updated. Meanwhile, time dispersion is carried out on coupling impact events through an impact time peak shifting strategy; and when the comprehensive risk index of any transport truck exceeds a preset threshold value, an emergency re-marshalling strategy based on the energy absorption remaining amount of the battery packaging unit and the coupler health degree is executed. The method can comprehensively consider the thermal characteristics of the power lithium battery, the dynamic response of the vehicle and the risk evolution.

The invention discloses a manufacturing defect-oriented multi-scale composite material mechanical property prediction method, and belongs to the technical field of composite material mechanical property analysis. The method comprises the following steps: based on a multi-scale representative volume element (RVE) theory, respectively constructing parameterized models containing pores and fiber dislocations in a microscopic scale and a mesoscale; the equivalent elastic parameters under each scale are calculated through a finite element numerical homogenization technology, and an agent model is constructed in combination with an artificial neural network, so that the calculation cost is remarkably reduced, and the high-efficiency cross-scale prediction of the rigidity and strength performance of the composite material is realized. The method overcomes the defect of defect modeling of a traditional model, has high precision and high efficiency, and is suitable for performance evaluation and optimization design of composite material structures in the fields of aerospace, rail transit and the like.

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 invention relates to the field of image detection, discloses a dynamic analysis system for cracks of a railway track, and aims to solve the problems of strong background interference, high error and omission ratio and single dynamic analysis dimension of track crack detection in the prior art. The system is characterized by comprising a texture library construction module, an image acquisition module, an image processing module, a texture expansion module, a damage judgment module and a dynamic analysis module. By constructing a multi-dimensional texture library and combining with an image processing and texture expansion module, accurate identification and hierarchical judgment of cracks are realized; and performing damage assessment and development trend prediction on the crack through multi-characteristic index damage judgment and dynamic analysis. According to the method, accurate, comprehensive and dynamic monitoring and evaluation of the railway track cracks can be realized, the false alarm and omission ratio is reduced, the maintenance efficiency and accuracy are improved, and the railway transportation safety is guaranteed.

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 highway-railway combined transportation scheduling method and system based on digital twinning and multi-agent cooperation. The method comprises the following steps: establishing a unique binding relationship of people, vehicles and goods in a transportation order based on an RFID binding algorithm, and synchronizing the unique binding relationship to a database; collecting railway transportation state data, road transportation state data and freight station operation data in real time; standardizing the railway transportation state data, the road transportation state data and the freight station operation data through a multi-source data fusion center; the connection time, the route and the parking position of the road vehicle are dynamically adjusted based on the LSTM collaborative scheduling model, and a road vehicle diversion and waiting duration estimation scheme under the emergency situation is output; railway carriage demands are predicted through LSTM, dynamic optimal matching of road trucks and railway carriages is dynamically matched based on a mixed integer programming model, an optimal matching scheme of the road trucks and the railway carriages is generated, unique binding of people, vehicles and goods is achieved by introducing an RFID technology, information barriers are broken, and real-time sharing and standardized interaction of data are achieved.

The invention relates to TBM water conveyance tunnel lining steel pipe installation and transportation equipment and a transportation and installation method, the TBM water conveyance tunnel lining steel pipe installation and transportation equipment comprises a rail transportation system, a transfer system, a wheel type transportation system, an installation butt joint device and temporary supporting profile steel, the rail transportation system is arranged on a drilling and blasting tunnel section, and the transfer system is arranged at the junction of the drilling and blasting tunnel section and a segment tunnel section; the wheel type transportation system is arranged on a pipeline, and the installation butt joint device is arranged at the end of a lined section. The rail transportation system and the transfer system share the same group of rails at the intersection; the installation and construction of the lining steel pipe of the TBM water delivery tunnel with the engineering quantity smaller than 1 kilometer can be facilitated, the construction efficiency is improved, and the cost is reduced.

The invention discloses an energy absorption device and a rail vehicle, and relates to the technical field of rail traffic, the energy absorption device comprises a base assembly, a first shaft sleeve, a guide shaft assembly and an energy absorption assembly, the base assembly is used for being connected to the front end of a vehicle body, and a first guide hole is formed in the base assembly. The first shaft sleeve is inserted into the first guide hole, and a second guide hole coaxial with the first guide hole is formed in the first shaft sleeve. The guiding shaft assembly is inserted into the second guiding hole, the energy absorption assembly surrounds the periphery of the base assembly, the first shaft sleeve and the guiding shaft assembly, one end of the energy absorption assembly is connected to the base assembly, and the other end of the energy absorption assembly is connected to the guiding shaft assembly. According to the energy absorption device provided by the invention, the multi-stage telescopic structure provides guidance for crumple of the energy absorption assembly, deformation is orderly and controllable, and the overall length is shortened to a certain extent on the premise that the effective compression deformation stroke is guaranteed, so that the installation requirement in a limited space is met.

The invention relates to the technical field of intelligent logistics, in particular to an intelligent logistics collaborative scheduling method based on multimodal transport dynamic optimization, which comprises the following steps of: acquiring high-speed and railway transport data through the Internet of Things, generating an all-road-condition data set, evaluating and eliminating an overload path, matching resources according to task timeliness and cargo attributes, sequencing, continuously tracking and dynamically adjusting, and performing collaborative scheduling. And finally, optimizing and generating an optimal scheduling scheme. Traffic monitoring equipment and a sensor are used for collecting flow, speed, load and cargo information of a path, a transportation data set is generated, path load is evaluated according to the flow, bearing capacity and speed, available paths are screened, resources are distributed according to task priority and path load, task progress is tracked in real time, and the priority and resources are adjusted. And path selection is optimized according to the traffic state, so that task timeliness and resource utilization maximization are ensured.

The utility model discloses a tray for transporting a vehicle and a frame type container. The tray for transporting the vehicle comprises a main frame, at least two tire fixers and at least two forklift grooves, the tire fixer is arranged at the side part of the main frame and is used for limiting a front wheel or a rear wheel of a vehicle parked on the tray, and the fixing position of the tire fixer on the main frame can be adjusted along the length direction of the main frame; the two forklift grooves are formed in the main frame and spaced by a preset distance to be matched with forks of the forklift, and inlets and outlets of the forklift grooves are formed in the side portion or the end portion of the main frame and used for allowing the forks of the forklift to go in and out of the forklift grooves. According to the utility model, the tire fixer is arranged on the pallet, so that the pallet is suitable for fixing vehicles with different axle distances and wheel treads, and the forklift grooves are formed in the pallet, so that the pallet is suitable for a forklift to carry the pallet, the vehicles are convenient to load and unload in a container, and the container is used for railway transportation, thereby obviously reducing the cost of railway transportation vehicles.

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 technical field of visual sensors, and particularly relates to a gap measurement method which is used for describing a gap in a segmented manner, describing the whole gap based on a segmented manner, establishing a surface point cloud of the gap by using a fringe projection structured light three-dimensional measurement technology, and extracting a boundary point cloud of the gap by using a binocular fringe-free picture. Fitting the surface point cloud and the boundary point cloud to solve the problem of large noise point quantity at the boundary in the measurement process of the binocular fringe projection structured light system; and meanwhile, the reference plane and the reference line are fitted by depending on the existing point cloud data, so that the fitting error is reduced. On the basis of improving the gap measurement precision, the method can be suitable for measurement of complex gaps which are long and narrow in gap shape, have light pollution, have low-frequency micro-amplitude vibration, have external shielding and have dynamic non-uniform deformation in the length direction in the fields of aerospace, rail transit, precision manufacturing, heavy industry and the like.

The utility model provides a kind of multimode flat intelligent device, it is characterized by including: with the first shell with first communication interface on multimode intercom movable connection, the second shell with operating button on it is hinged with first shell by hinge shaft, the first communication interface on first shell is inserted with the communication interface on multimode intercom, first communication interface, operating button and microcontroller in first shell or second shell are electrically connected.The existing function of multimode intercom can be used to directly connect the device, complete the operation and accurate transmission of the car control instruction, reduce the communication and waiting time in the car operation, improve the efficiency of the car operation, avoid the vehicle collision, derailment and other accidents caused by misoperation, ensure the safety of railway transportation, without changing the existing system architecture, realize the upgrading of equipment, improve the safety and practicality of equipment.

A self-tipping railway car with an automatic unloading detection device, belonging to the field of railway transportation, includes a self-tipping railway car with axle suppression mechanism. The left and right ends of the car's bottom are respectively mounted on the vehicle via a first cylinder and a second cylinder. A solenoid valve is mounted on the vehicle to control the intake and exhaust of the first and second cylinders. A battery box and a power supply box are mounted on the side bolster beams of the vehicle and are electrically connected. A signal transceiver is installed inside the power supply box and is electrically connected to a time relay. The time relay is electrically connected to the solenoid valve, controlling the first stage of the solenoid valve's operation. A first synchronous signal transceiver is installed inside the power supply box, and a second synchronous signal transceiver is installed on the end wall of the self-tipping railway car. A limit switch device detects the opening and closing status of the side doors of the self-tipping railway car. This design solves the problem of automatic unloading of the self-tipping railway car with axle suppression mechanism, eliminating the safety hazard of tipping over during the unloading process.

The application discloses a kind of LKJ data checking device and data comparison method, belongs to rail transit field.Solve the existing LKJ data before verification confirmation mode, it is difficult to meet the actual demand of safety production problem.It includes data processing unit connection driving condition simulation unit, communication conversion unit, data input interface unit and man-machine interaction unit;Driving condition simulation unit connects first, second LKJ monitoring recording board, according to data processing unit command, provides driving condition simulation signal to both;First LKJ monitoring recording board loads before change LKJ vehicle data, second LKJ monitoring recording board loads after change LKJ vehicle data;Communication conversion unit is connected between data processing unit second communication interface and first, second LKJ monitoring recording board;Data input interface unit provides external data to data processing unit, and man-machine interaction unit receives user input and displays information.For railway transport safety field.

The application discloses a movable shed railway transport flat car, and relates to the technical scheme points that the flat car comprises a chassis, end wallboards, side wallboards, a top plate, movable wallboards and a moving frame, the top plate is fixedly connected to the top of the side wallboards and the end wallboards, the moving frame can slide along the width direction of the chassis on the top of the chassis, and the moving frame can be completely moved to the top of the chassis; when loading and unloading goods, the movable wallboards are first rotated to be horizontal, then the moving frame is moved from the top of the chassis to the movable wallboards through the sliding of the moving frame, so that the moving frame moves out of the internal space of the flat car, loading and unloading of the goods is carried out outside the flat car, the loading and unloading of the goods has sufficient operation space, and thus loading and unloading operation of the goods is facilitated.

The invention discloses a hydraulic control system for mining rail transportation equipment. The hydraulic control system comprises a walking system and an auxiliary system. The walking system adopts a double-closed variable pump independent parallel design, and the start, stop and flow direction of a pump set are controlled through an electromagnetic directional valve, so that the dual systems are mutually standby, and the core function is ensured not to be interrupted; the auxiliary system adopts a double-auxiliary-pump confluence design, a pressure stabilizing loop is constructed through a one-way valve and a pilot overflow valve, and reliable operation of auxiliary functions such as braking and clamping is guaranteed. The system can dynamically switch a single / double-pump operation mode, the single pump saves energy during light load, and the double pumps converge to increase torque during heavy load; the proportional pressure regulating valve and the constant-power valve are cooperatively controlled, overpower operation of the prime motor is prevented, and energy consumption and abrasion are reduced. And a prime motor adopts an anti-explosion design, an electromagnetic directional valve is automatically switched, a modular structure is convenient to maintain, and the continuity, the safety and the intelligent level of equipment under complex working conditions of a mine are remarkably improved.

The utility model discloses a material taking, unloading and clearing all-in-one machine suitable for a railway freight yard, which is characterized in that a movable bracket walks on a rail on the inner side of the railway freight yard or a coal shed, and a sliding rail is horizontally arranged on the movable bracket; the vehicle cleaning mechanism assembly travels on the sliding rail and is used for cleaning residual materials in the compartment after unloading; the unloading mechanism assembly walks on the sliding rail and is used for unloading materials in the railway transportation compartment and also used for taking the materials from a storage yard. The feeding mechanism is horizontally arranged on the movable supporting frame and located on the walking path of the vehicle cleaning mechanism assembly and the vehicle unloading mechanism assembly, the feeding mechanism is used for receiving and transferring materials conveyed by the vehicle cleaning mechanism assembly and / or the vehicle unloading mechanism assembly, and the feeding mechanism can rotate forwards and backwards to convey the materials to a belt conveyor or a storage yard. A plurality of telescopic discharging ports are formed in the feeding mechanism and correspond to the feeding path, and electric control gates are arranged in the telescopic discharging ports. The functions of unloading, clearing, material taking and the like are integrated, one machine has multiple purposes, and the manufacturing cost is saved.

The invention provides a train working diagram and motor train unit maintenance integrated optimization method and system considering flexible marshalling and a short-distance turn-back strategy, and belongs to the technical field of railway transportation organization and transfer. Distributing the obtained available motor train units to a running line while minimizing the number of vehicles put into use; by considering the short-distance turn-back strategy of the train, the application efficiency of the motor train unit can be improved, and the operation cost of the train can be reduced; the variable station dwell time, the flexible marshalling type and the de-marshalling operation enable the application of the motor train unit to be more efficient and more flexible, the turn-back station capacity and the number limitation of the available motor train unit are considered, and the scheme of remote overhaul and overrun is more in line with the actual operation of the railway; in the bullet train section, not only is the maximum parking capacity considered, but also the minimum number of cars reserved at the end of the plan is considered, and it is guaranteed that the plan can be executed with cars in the next cycle. The travel cost of passengers is reduced while plan feasibility is guaranteed, and the operation efficiency of the motor train unit is improved.

The application provides a high-strength rare earth magnesium alloy based on a room-temperature rotary swaging composite process and a preparation method thereof.The method comprises the following specific steps: according to designed components, raw materials are smelted to obtain a semi-continuous casting ingot, the rare earth magnesium alloy ingot is subjected to homogenization treatment, then is preheated and kept warm to be subjected to differential temperature extrusion, the extruded rare earth magnesium alloy is subjected to multi-pass rotary swaging treatment with a small deformation at room temperature, and finally is subjected to artificial aging treatment.Through the composite process with the room-temperature rotary swaging, the grains can be refined, the texture can be improved, and a large number of dislocations and twins can be introduced into the grains, so that the nucleation sites and precipitation power of precipitated phases in the aging process are improved, the aging strengthening capacity is more excellent, and the high-strength rare earth magnesium alloy is obtained.The application of the light-weight high-strength rare earth magnesium alloy in the fields of aerospace, rail transportation and automobiles can be accelerated.

The utility model discloses a cargo leveling device for mine railway transportation and a gantry assembly, which comprise two bases, a stand column is fixedly arranged at the top of each base, a fixed support is fixedly arranged at the top of each stand column, a movable support is movably arranged between the two fixed supports, and the movable supports are fixedly arranged on the top of each stand column. The two fixed supports slide on the outer side of the movable support through an adjusting mechanism. The gantry assembly is moved to the position of a mine railway transport truck, then the second hydraulic push cylinder and the telescopic rod are driven to push the leveling sleeve frame, the leveling pressing frame and the leveling plate to move towards the position of ore on the top of the carriage, and the ore on the top of the carriage is compacted and leveled through cooperation with the moving mechanism. And the vibration plate located at the bottom of the leveling frame can increase the density of the ores through vibration so as to achieve leveling after uniform distribution, the density of the ores is increased in a compaction leveling mode, and the stability in the mine railway transportation process can be improved.

1. Name of the product in this design: New Energy Locomotive (LE8). 2. Intended use of this design: for rail transportation. 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. For parts of the product that are not easily seen or cannot be seen during use, the bottom view is omitted.

This invention belongs to the technical field of laminated glass encapsulation materials and discloses a high-impact-resistant glass adhesive film. The film is a five-layer co-extruded composite structure, sequentially comprising a first ethylene-vinyl acetate copolymer (EVA) resin layer, a first polar transition layer, a polyvinyl alcohol acetal resin layer, a second polar transition layer, and a second ethylene-vinyl acetate copolymer resin layer. Its core lies in the selection of materials to ensure that the surface free energy of the first and second polar transition layers is between the two EVA resin layers and the middle polyvinyl alcohol acetal resin layer, forming a precise surface free energy gradient. This design effectively releases interlayer stress, fundamentally solving long-term reliability problems such as easy debonding, delamination, and plasticizer migration at the interface when composite materials of different polarities are combined. Simultaneously, this structure possesses excellent wide-temperature-range impact resistance, high glass adhesion, low water vapor transmittance, and good optical performance, meeting the application requirements of high-end laminated glass in fields such as construction, automotive, and rail transportation.

The utility model discloses a pneumatic spiral sand spreader belongs to railway transportation technical field, include: fuselage, including shell, sand material partial shipment shell, shell and sand material partial shipment shell constitute sand storage tank, distribution tank, and sand storage tank is connected with distribution tank, sand material introduction part is used for introducing sand material in the external hopper into sand storage tank, sand blasting part is used for spraying sand material, including pneumatic unit, distribution unit, sand blasting pipe, and pneumatic unit sprays sand material in distribution tank through sand blasting pipe. The utility model utilizes compressed air to assist sand material to spray, effectively solves the problem of sand delivery in railway construction and maintenance scene, improves the uniformity and reliability of sand delivery, effectively improves the working environment of wheel rail contact surface, improves the adhesion coefficient, avoids the serious situation of sliding between wheel rail.

The utility model discloses an oil leakage detection system for a railway oil tank truck, which belongs to the technical field of railway oil tank trucks and comprises an oil tank body fixedly mounted above a railway transport vehicle and used for oil transportation, and an oil injection part is arranged at the top of the oil tank body and used for injecting oil into the oil tank body. An oil guiding assembly is fixedly connected to the outer side wall of the oil tank body, a monitorable oil collecting and discharging integrated assembly is arranged at the bottom of the oil guiding assembly, and the oil guiding assembly is used for guiding oil leaked from the oil tank body into the monitorable oil collecting and discharging integrated assembly. When oil leaks, leaked oil can flow into the monitorable oil collecting and discharging integrated assembly through the oil guide assembly, and the monitorable oil collecting and discharging integrated assembly has a monitoring function, so that the oil leakage condition of the oil tank body can be judged once the inflowing oil is monitored, and the purpose of oil leakage detection is achieved.

The utility model provides a refrigerated container which comprises a container body, a refrigerating unit, corner columns, a first top corner piece, a second top corner piece, a front-end equipment cabin and power supply equipment. The refrigerating unit is arranged in the box body and located at the front end of the box body. The corner columns are arranged at the front end of the box body; the first vertex angle piece is arranged on the top end surface of the corner post; the second vertex angle piece is arranged on the top end face of the first vertex angle piece. The front-end equipment cabin is arranged at the front end of the box body in the length direction of the box body, located outside the box body and connected to the corner columns. The power supply equipment is arranged in the front-end equipment cabin and detachably connected to the first vertex angle piece, and the power supply equipment is electrically connected with the refrigerating unit. The refrigerated container is not limited by transportation of railway locomotives, the power supply equipment can be protected from being damaged in the collision process, fuel oil in the power supply equipment can be prevented from being stolen, the risk that the power supply equipment falls to a railway in the transportation process can be effectively avoided, and the safety of railway transportation is effectively guaranteed.

The invention relates to a low-damage secondary energy-gathered jet cutting device for a fiber composite material. Comprising a buffer protection cover, a linear cutter module, a shaped charge module and an explosive-proof body arranged between the linear cutter module and the shaped charge module. The shaped charge module consists of a plurality of micro shaped charge units which are linearly arranged, and is used for pre-puncturing a row of pre-guide holes to form a continuous stress concentration line and a crack propagation prefabricated path; and the linear cutter module is detonated in a delayed mode, and final cutting is completed along the prefabricated path. According to the method, the problems of material tearing, layering, rough cutting boundary and the like are solved through a pre-guiding-post-cutting cooperation mechanism by means of guiding of prefabricated stress concentration points and sequential control of subsequent cutting, the smoothness and quality of a cutting surface are improved, the fiber damage problem is reduced, and the production efficiency is improved. And the method has a wide application prospect in precise cutting of high-performance composite materials such as carbon fibers and Kevlar used in the fields of aerospace, rail transit, high-performance ships and the like.

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.