165 results about "Rail line" patented technology

The invention discloses an operation optimization method, system and equipment for cooperative carbon reduction of an intelligent rail line network, and relates to the technical field of energy-saving scheduling and low-carbon operation of urban public transport. A refined section-level energy consumption and carbon emission quantitative model is constructed based on dynamic characteristics of intelligent rail vehicles and carbon emission factors of a power grid; a deep learning network is used for fusing multi-source data to carry out cross-line short-time passenger flow prediction, real-time passenger flow demands, energy consumption and carbon emission indexes and intersection signal phase time window constraints are uniformly incorporated into a multi-target collaborative optimization framework, and solving is carried out through mixed integer linear programming in a rolling vision field. According to the method, combined optimization and dynamic closed-loop control of departure intervals, section operation speeds and road right strategies are realized, so that the total operation energy consumption and carbon emission of the intelligent rail line network are remarkably reduced on the premise of ensuring passenger flow transportation requirements and service quality, and the line network level energy-saving and carbon-reducing operation targets are achieved.

The invention discloses a virtual reality interactive simulation system based on high-speed rail line maintenance, and belongs to the technical field of high-speed rail line maintenance simulation. The system comprises a virtual scene construction unit, an operation action capture unit, a rule verification unit, a difference calculation unit, an abnormity positioning unit and a comprehensive risk prompting unit. The virtual scene construction unit generates a standardized virtual scene model by using high-speed rail line maintenance manual data and real-time equipment state information; the operation motion capture unit captures a user three-dimensional space coordinate sequence and outputs motion track data; the rule verification unit compares the action track data with a preset maintenance rule base and outputs an operation compliance judgment result; the difference calculation unit calculates an operation deviation measure; an abnormal positioning unit positions an abnormal operation physical position; and the comprehensive risk prompting unit generates a maintenance risk grade identifier. The system provides a simulation environment for maintenance personnel, and carries out real-time monitoring and feedback operation.

The invention relates to the technical field of railway line planning, in particular to an improved SAC railway line planning method based on course learning, and the method comprises the steps: modeling a three-dimensional line selection environment; constructing an improved SAC decision model, and designing a 100-dimensional state space including topographic features, forbidden zone positions and unfavorable geological risks; constructing a reward function fusing engineering cost, terrain fitness and invalid action penalty; curriculum learning staged training is carried out; and generating and optimizing a line scheme. According to the improved SAC railway line planning method based on course learning, a continuous action space decision framework based on the SAC algorithm can effectively solve the high-dimensional continuous action optimization problem of railway line selection. By designing a multi-dimensional fusion state space, a continuous action space based on a proportionality coefficient and a reward function based on target guidance, the adaptability of the intelligent line selection model to topographic features is remarkably improved.

The utility model belongs to the technical field of rail transit cleaning, and relates to a movable spraying weeding device for rail transit, which comprises a vehicle body, a pesticide storage box, a fixed spraying mechanism and a movable spraying mechanism, the vehicle body moves along a track line; the pesticide storage box is fixed on the vehicle body; the fixed spraying mechanism is communicated with the pesticide storage box; the movable spraying mechanism is communicated with the pesticide storage box; in the moving process of the vehicle body, the fixed spraying mechanism sprays weeding agents to weeds close to the track, the movable spraying mechanism sprays weeding agents to weeds far away from the track, the fixed spraying mechanism and the movable spraying mechanism are matched with each other, it is guaranteed that the weeding agents cover the weeds comprehensively without dead corners, spraying blind areas are avoided, and the weeding efficiency is improved. The weeding effect is improved; meanwhile, by adjusting the height and angle of the movable spraying mechanism, the coverage range of the weeding agent is dynamically adjusted according to the growth condition of the weeds, it is further ensured that the weeding agent effectively covers most weeds, and the weeding effect is improved.

The utility model relates to the technical field of railway construction, and provides a drilling-free supporting template adjusting and fixing device which is used for locking supporting templates and a protective wall, the number of the supporting templates is two, the two supporting templates are arranged on the same side of the protective wall in parallel, the length direction of the supporting templates is the same as that of the protective wall, and each supporting template comprises a connecting beam, a limiting plate and a hanging piece, the connecting beam is used for being placed between the two supporting formworks in a lap joint mode. The limiting plates are arranged below the ends of the connecting beams and located on the outer sides of the supporting formworks, and the limiting plates are used for being locked with the supporting formworks. One end of the hanging piece is used for being hooked on the protective wall, and the other end of the hanging piece is connected with the limiting plate close to the protective wall. According to the technical scheme, the problems that in the prior art, when a railway line is laid on the bridge base, positioning holes are generally drilled in the bridge base, the supporting formwork is fixed to the bridge base through cooperation of locking pieces and the positioning holes, construction wastes time and labor, and the construction efficiency is low are solved.

The utility model relates to the technical field of geotechnical engineering and railway construction, and particularly discloses a vibration reduction and deformation resistance steel sheet pile for deep foundation pit engineering close to an existing railway line, which comprises a steel sheet pile, a vertical load-bearing steel bar, a connecting component, a vibration isolation and reduction interlayer and a protective steel plate. By adopting a composite structure form of steel sheet piles, vibration isolation and reduction interlayers and vertical load-bearing steel bars, the structure reinforcing function and the vibration isolation function are organically combined, and a brand-new supporting structure system is formed; the vertical stressed steel bars are matched with the vibration isolation and reduction interlayer and the damping spring shock absorbers, the vertical stressed steel bars mainly share tensile stress to improve the stress state, the vibration isolation and reduction interlayer mainly absorbs vibration energy to weaken vibration transmission, and the comprehensive performance of the steel sheet pile is remarkably improved through the combined action of the vibration isolation and reduction interlayer and the damping spring shock absorbers; meanwhile, according to the scheme, by optimizing arrangement of the vertical load-bearing steel bars, selection of vibration isolation and reduction materials and arrangement of connecting components, the whole structure has the good reinforcing effect and vibration reduction performance, and construction convenience and economical efficiency are taken into consideration.

The application discloses a kind of railway three-dimensional geographic scene data service production methods based on red blue stereo sheet, comprising: S1, preparation basic data, S2, organization data, S3, production stereo sheet, S4, associated railway line position data, S5, stereo scene map service release.The method of the application constructs stereo pair using aerial survey original aerial photograph, generates red blue stereo sheet, realizes that only low-cost red blue glasses can be viewed stereo scene;Through the analysis of stereo pair coverage and railway mileage point positioning information, the association of stereo pair and railway line position is realized, and the interested area is quickly searched and positioned;By making red blue stereo sheet into standard format map service data and publishing service, multiple users can be quickly called and observed through network transmission.

This invention discloses an intelligent early warning system and method for railway line patrol safety based on edge computing, involving intelligent safety early warning in the railway transportation field, enabling real-time controllable emergency measures to minimize the negative impact of incidents. The edge computing-based intelligent early warning system for railway line patrol safety includes: a cloud platform for an intelligent patrol system along the railway line, network infrastructure units for the intelligent patrol system along the railway line, on-site edge intelligent early warning devices and traffic control units, and IoT video sensing infrastructure units. This invention aims to deploy edge computers to continuously analyze 24-hour video streams from surveillance cameras at key locations along the railway line, process data in real-time, reduce latency, promptly identify abnormal events, take temporary emergency measures as quickly as possible, and rapidly report abnormal events, effectively shortening response time, significantly improving the efficiency of handling abnormal events in railway transportation, enhancing the accuracy of emergency measures, and ensuring railway line safety.

The utility model relates to the technical field of railway vehicle safe operation, and discloses a railway vehicle flexible car stop which comprises a mounting frame, fixing plates are fixedly connected to the periphery of the bottom of the mounting frame respectively, speed reduction assemblies are arranged at the bottoms of the fixing plates, a buffer is arranged at the top of the mounting frame, and a baffle is fixedly connected to the outer portion of the buffer. An adjusting assembly is arranged in the baffle; the speed reduction assembly comprises a connecting plate, the connecting plate is fixedly connected to the bottom of the fixing plate, a cushion block is fixedly connected to the bottom of the connecting plate, two damping rails are connected to the outer portion of the cushion block through first bolts, and railway lines are arranged at the opposite positions of the two damping rails. According to the utility model, a railway line is clamped by the damping rail, so that strong friction force generated by the first friction plate and the second friction plate brakes a vehicle from the bottom. The magnitude of the friction force is in direct proportion to the impact force of the vehicle, so that the kinetic energy of the vehicle can be effectively consumed, and the speed of the vehicle can be reduced within a short distance.

The embodiment of the utility model provides a railway line power supply monitoring system, and belongs to the field of railway line monitoring. The monitoring system comprises a thermal imaging camera which is fixed on a pole tower of a railway line through a camera shooting fixing device so as to acquire an image of on-site pole tower electrical equipment in real time; the platform warning module is used for analyzing the image acquired by the thermal imaging camera and giving a warning when the image is abnormal; the storage module is used for storing the images and warning information of the on-site tower electrical equipment acquired by the thermal imaging camera; the network transmission module is wirelessly connected with the thermal imaging camera, the storage module and the platform warning module so as to transmit information acquired by the thermal imaging camera to the storage module and the platform warning module; and the solar cell panel is connected with the thermal imaging camera so as to supply power to the thermal imaging camera. The monitoring system can monitor the railway line in real time.

The invention discloses a method and a device for judging network access perception degradation, electronic equipment and a storage medium. The method comprises the steps that a first object of a target line is determined, the target line comprises a plurality of first cells, and the first cells are the network coverage range of a communication base station of each high-speed rail station on the target line; determining a third index based on the association degree of the first index and the second index; the first index is a key quality index of each first cell network, and the second index is an index of a network operation state and network technical performance of each first cell; the third index is a first index strongly related to the internet surfing perception of the first object; determining a first index threshold value of the third index, and determining a second object based on the third index and the first index threshold value; the second object is an object with degraded internet access perception in the first object; and determining the distribution condition of the second object in each first cell, and determining an abnormal cell according to the distribution condition. According to the method, the wireless network sensing condition of the high-speed rail line can be accurately judged.

The utility model provides a double-supporting-plate tool arranging machine which comprises a working base, a driving rail line pedestal, a large translation dragging plate, a small dragging plate, a main shaft portal frame, a telescopic arm, a working table and a rotating main shaft. The driving rail line pedestal is fixedly installed at one end of the surface of the working base, and the large translation dragging plate is installed on the driving rail line pedestal in a sliding mode; the small carriage is mounted on the translation large carriage in a sliding manner; the main shaft portal frame is fixedly mounted at the other end of the surface of the working base, the portal frame rail line is fixedly mounted at the top of the main shaft portal frame, and the telescopic arm is slidably mounted on the portal frame rail line; the workbench is installed at one end of the telescopic arm in a sliding mode. The rotating main shaft is mounted in the main shaft portal frame; due to the arrangement of the small dragging plate and the working table, flexibility is high, cutters can be rapidly replaced, and various machining technologies can be carried out on one machine.

The utility model discloses an efficient and accurate-positioning packaging box conveying track line, belongs to the technical field of packaging box conveying devices, and solves the problems of high labor intensity, low production efficiency and potential safety hazards in the prior art. Comprising a rack, a feeding inlet and a discharging outlet are formed in one end of the rack in parallel, and a feeding conveying line and a discharging conveying line are arranged between a working platform at the other end of the rack and the feeding inlet and between the working platform at the other end of the rack and the discharging outlet respectively; a material taking transverse moving conveying mechanism and a finished product transverse moving conveying mechanism are arranged at the ends, close to the working platform, of the feeding conveying line and the discharging conveying line correspondingly, a feeding lifting stopper is arranged on one side of the material taking transverse moving conveying mechanism, and a discharging lifting stopper is arranged on one side of the finished product transverse moving conveying mechanism. And material box uncovering mechanisms are arranged on the two sides of the working platform correspondingly. The automatic material box conveying device is reasonable in design, compact in structure, capable of automatically conveying material boxes to a production area, low in labor intensity, accurate in positioning of material box conveying, convenient to operate, high in production efficiency and high in practicability.

1. Name of the designed product: Railway walking plate. 2. Use of the designed product: Used for the platform walkway plate of the railway line patrol inspection platform. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view 1.

The application discloses a long-distance rail recognition and obstacle detection method and system, a long-focus optical system is combined with a super-high-speed industrial camera on a hardware level to build a high-frame-rate and long-distance optical detection system, a region of interest for obstacle detection is demarcated by recognizing and visually segmenting left and right rail lines on a software level, and a target detection-based track obstacle intrusion detection algorithm and other advanced visual tasks are executed, and finally high-frame-rate recognition and detection of long-distance rails and track obstacles are realized. The Schmidt-Cassegrain optical system with a focal length of 2000mm is combined with a super-high-speed industrial camera with a resolution of 1920*1080 and 3000 frames per second to build a long-distance high-frame-rate optical detection platform and erect on a driving position of a train, railway conditions within a range of 6km are detected in real time, and serious accidents caused by a too long braking distance of the train due to high-speed driving can be prevented. Compared with traditional train driver eye observation and laser radar scanning imaging modes, a long-distance optical observation platform and a rear-end real-time detection system can realize a longer detection distance, better detection and recognition robustness and a higher frame rate.

A measurement vehicle (100) is provided with a first laser scanner (111) and a second laser scanner (112) that are used for measuring overhead wiring, and a first slide mechanism (115) and a second slide mechanism (116). When the measurement vehicle (100) travels on a road, the first slide mechanism (115) and the second slide mechanism (116) slide in the transverse direction to fit within the width of the vehicle, thereby placing the first laser scanner (111) and the second laser scanner (112) within the width of the vehicle. When the measurement vehicle (100) moves along a railway track to measure overhead wiring, the first slide mechanism (115) and the second slide mechanism (116) spread to the outside of the width of the vehicle to place the first laser scanner (111) and the second laser scanner (112) outside the width of the vehicle.

The invention provides an intelligent rail line shared charging resource-oriented vehicle SOC optimal scheduling method, relates to the technical field of rail traffic scheduling control, and solves the problem of unreliable charging scheduling of a multi-line intelligent rail vehicle in a shared charging resource environment. According to the method, a rolling time domain scheduling framework is established, and unified state information of vehicles, vehicle depots and a power grid is constructed; then calculating a target SOC of the vehicle for executing the next task, and constructing a corresponding charging scheduling constraint condition; a space-time coupling model of the station track and the charging pile resources continues to be constructed, and space-time resource occupation constraints are represented; and constructing and solving a joint optimization model based on the acquired or constructed various information, synchronously deciding the parking station track and time period, charging pile distribution, charging duration and charging power of the vehicle, generating a corresponding instruction, and issuing the instruction. According to the method, the utilization efficiency of charging resources under the multi-line shared vehicle depot is remarkably improved, and the vehicle on-line punctuality rate and the system transport capacity guarantee capability are improved.

This invention discloses a rapid prediction method for rail rolling contact fatigue damage in the field of rail damage prediction technology. The method includes establishing a three-dimensional elastoplastic wheel-rail cyclic rolling contact finite element model, improving the cyclic plastic constitutive model, and simulating the stress-strain evolution of the rail. A rail stress-strain sample library is generated through parametric sampling and batch calculation. A Physically Constrained Generative Adversarial Network (PC-GAN) is constructed, embedding physical constraints such as contact force conservation and energy consistency into the loss function to achieve rapid and high-precision mapping from operating parameters to the stress-strain field. Based on the PC-AN prediction results, cumulative damage and fatigue life are calculated using an incremental multiaxial fatigue damage model, and a damage distribution map of the entire rail line is drawn, identifying high-risk sections. This invention deeply integrates physical modeling with intelligent algorithms, achieving an order-of-magnitude improvement in rail fatigue damage assessment efficiency while ensuring prediction accuracy, providing efficient and reliable technical support for rail life assessment and maintenance decisions across the entire rail line.

Provided is a track engineering mechanical vehicle heat preservation device, which comprises a heat preservation type vehicle body and a heat preservation type floor arranged at the lower end of the heat preservation type vehicle body, a window heat preservation structure is arranged at the window mounting opening and the window connecting position of the heat preservation type vehicle body, a door heat preservation structure is arranged at the door mounting opening and the door connecting position of the heat preservation type vehicle body, and a sealing heat preservation structure is arranged at the through hole for small part mounting on the heat preservation type vehicle body; a heat preservation type movable floor is arranged at the access opening of the heat preservation type floor, one end of the heat preservation type movable floor is hingedly connected to the corresponding position of the access opening, and the other end of the heat preservation type movable floor is detachably fixedly connected to the heat preservation type floor through a triangular lock. The heat preservation structure of the track engineering mechanical vehicle is optimized, the problem that the temperature difference between the inside and outside of the track engineering mechanical vehicle is large due to the large temperature difference between the north and south climates is solved, the energy consumption of the air conditioner refrigeration and the electric heater heating power is effectively reduced, the demand of the current different regional high-speed rail lines is met, the heat preservation performance and the safety and comfort of the whole vehicle are ensured, and the energy consumption is reduced.

The invention discloses a highway-railway dual-purpose multifunctional tamping vehicle which comprises a main vehicle frame of an arch structure, a highway walking module, a guide wheel module, a track lifting and lining module, a measuring module and a tamping module, and the track lifting and lining module is used for clamping a track and stirring the track; the measuring module falls on the track, walks along the track along with the main frame and is used for measuring the longitudinal position and the transverse position of the track; the tamping module is provided with a plurality of groups of detachable and adjustable tamping picks and is used for tamping operation of railway lines and turnouts; a cab is arranged on the side, away from the tamping module, of the main frame, and auxiliary arms are arranged at the front end and the rear end of the main frame. The road-railway dual-purpose multifunctional tamping wagon can be quickly switched among a road walking mode, a railway walking mode and a railway operation mode, is flexible to go up and down a road, can realize automatic detection tamping operation, not only keeps the operation quality and the operation efficiency of a large tamping wagon, but also improves the working efficiency of the large tamping wagon. And the difficulty that small and medium-sized tamping equipment cannot automatically detect the track lifting and lining is solved.

The utility model relates to a P60 short rail for pre-dropping rail head height of railway line, which is characterized by including two factory specifications of model A and model B, wherein model A is pre-dropped by 3.0+ / -0.2mm in the 1:20 inclined surface area of the rail head side, and model B is pre-dropped by 6.0+ / -0.2mm. Through hierarchical compensation design, when the vertical wear of the existing long rail head is 0-7.5mm, the welding rail height difference can be less than or equal to 1.5mm, and when the vertical wear is 7.5-9mm, the welding rail height difference can be less than or equal to 3mm. The utility model replaces on-site polishing with the pre-dropping structure at the factory, improves the welding quality, reduces the impact of the train on the rail irregularity, improves the train safe operation quality, directly reduces more than 90% of the cost, and has remarkable economic benefits and safety improvement.

The present application relates to anti-slide pile reinforcing technical field, specifically relates to a kind of large-size rectangular broken anti-slide pile reinforcing structure of operating railway line.A kind of "concave" anti-slide pile repair structure of broken pile, including prefabricated steel guard wall, formwork support, embedded part, shear I-beam, steel reinforcement framework, the present application provides a kind of large-size rectangular broken anti-slide pile reinforcing structure with simple structure, convenient construction, good effect, after the stability discrimination safety of potential sliding surface, excavate a "concave" section pile hole in defect pile body and make steel guard wall, "concave" pile inlay shear I-beam and once cast concrete forming, form the inner package of defect pile body, under the premise of guaranteeing normal operation of railway line, realize defect pile reinforcing, prevent pile body defect continue to deteriorate, eliminate landslide instability hidden danger.

The invention relates to the technical field of urban public traffic management and control, and discloses an intelligent rail left-turn passing system and method by means of opposite lanes, and the system comprises an intelligent rail special lane, a central isolation fence opening formed in an intersection entrance area, an intersection signal lamp control system, an intelligent rail line drawing virtual rail, and a special signal lamp. The intelligent-rail special lane is arranged on the road section where the intersection is located close to the road center line, and the opening of the central isolation fence takes one side far away from the intersection as a starting point and one side close to the intersection as a tail end; the length of an intersection entrance guide lane line is larger than that of an intelligent rail train, the intelligent rail line drawing virtual rail is arranged along a central isolation fence opening to correspond to an intelligent rail train left-turning lane changing path, and a special signal lamp is linked with an intersection signal lamp control system to coordinate the passing order of the intelligent rail train and social vehicles. The length of the intelligent rail special lane is matched with the length of the intersection entrance guide lane line.

The utility model belongs to water supply and drainage technical field of water conservancy and hydropower engineering provides a pumped storage power station water supply system, the system includes sand trap, pump house, concrete round pipe culvert, high pool, sand trap is connected with pump house, and pump house, concrete round pipe culvert, high pool are connected in proper order through water supply line, concrete round pipe culvert is embedded in frozen soil layer below railway line, and one end of concrete round pipe culvert is communicated with drain valve inspection shaft, the bottom in concrete round pipe culvert is equipped with concrete pedestal, and concrete pedestal is equipped with water supply steel pipe on, the contact surface of concrete pedestal and water supply steel pipe is arc type, and is compatible with the circular arc surface of water supply steel pipe, the outside of water supply steel pipe is equipped with heat preservation material, the utility model discloses through the design of concrete round pipe culvert, effectively solved the technical problem that water supply system is under the railway line, ensured the reliability of pumped storage power station water supply, simultaneously does not influence the normal construction and operation of railway.

The application provides a vehicle SOC optimal scheduling method for smart rail line shared charging resources, relates to the technical field of rail transit scheduling control, and solves the unreliable charging scheduling problem of multi-line smart rail vehicles in a shared charging resource environment. The method establishes a rolling horizon scheduling framework and constructs unified state information of vehicles, depots and power grids. Then, the target SOC of the vehicle executing the next task is calculated, and the corresponding charging scheduling constraint condition is constructed. A space-time coupling model of the track and charging pile resources is further constructed to represent the space-time resource occupation constraint. Based on the obtained or constructed various information, a joint optimization model is constructed and solved to synchronously decide the parking track and time period of the vehicle, the charging pile allocation, the charging time length and the charging power, generate corresponding instructions and issue them. The application significantly improves the utilization efficiency of the charging resources under the multi-line shared depot, and improves the vehicle on-line punctuality rate and the system operation capacity guarantee ability.

The invention relates to a roller coaster arrangement (1000) comprising a car arrangement and a track (S) with at least one support device (100) having: a support base (10a) for anchoring the support device (100) in a foundation (F1, F2, F3); a support head (14a) that can be connected to the track (S) to transfer a static and dynamic load of the roller coaster arrangement (1000) into the foundation (F1, F2, F3); and at least one modular segment (12) arranged between the support base (10a) and the support head (14a). The support device (100) is designed as a single load-bearing column, with at least one segment (10, 12, 14) being designed as a prestressed spun concrete hollow body.

The application discloses a kind of based on railway multidimensional environment intelligent line selection method and system, it is related to railway intelligent line selection technical field, the method of the present application includes passage area area preliminary screening, to be wired area multidimensional analysis, railway line confirmation and line display, by screening out the each to be wired area corresponding to passage area, and then the multidimensional environmental information of each to be wired area, understand the multidimensional result of each to be wired area corresponding to passage area, to further screening confirmation of to be wired area, obtain the connection line set between each to be wired area corresponding to passage area, and evaluate the passage result value and construction result value of each connection line of area, confirm to obtain the railway passage line corresponding to passage area, to realize the optimal selection of railway passage line of passage area, reduce the difficulty and high loss of passage area railway line construction, guarantee the effectiveness of passage area railway line construction.

The invention relates to a transition device for railroad bridge cables and a construction method.According to the transition device, an existing cable trough is disconnected on the front side and the rear side of an existing bridge, a transition cable trough is fixedly installed on one side of an adjacent bridge, and migration troughs are fixedly installed between the two ends of the transition cable trough and the existing cable trough; transferring the electric service professional cable into the transition cable trough through the migration trough; a plurality of cable fixing devices are fixedly arranged on a power supply professional cable at intervals, the cable fixing devices located on the two sides of an existing bridge are hoisted through hoisting equipment, and then the existing bridge can be replaced. Through cooperation of the migration groove, the transition cable groove and the cable fixing device, transition of various cables can be completed on the bridge pier, the cables do not need to be lowered to the ground, the disturbance risk possibly borne by the cables after the cables fall to the original ground is effectively avoided, the stability of a railway line is fundamentally enhanced, and therefore the running safety of a train is powerfully guaranteed.

The invention provides the application of the test method in testing the rolling contact fatigue performance of the steel rail material in a humid and / or corrosive environment. The invention also provides a test method for testing the rolling contact fatigue performance of the steel rail material, which comprises the following steps: preparing a steel rail test sample, simulating a humid and corrosive environment, and carrying out a double-wheel rolling contact fatigue test according to test requirements; and evaluating the contact fatigue performance of the sample through weightlessness, vibration signals and the surface state of the sample. The test mode better conforms to the actual service condition of the steel rail line in the humid and corrosive environment, and the test result is more accurate and effective. The steel rail material rolling contact fatigue test method provided by the invention can evaluate the contact fatigue performance of multi-steel-grade steel rails in a humid and corrosive environment, and parameters such as corrosive liquid and test pause interval time can be adjusted according to actual requirements. The method is suitable for test evaluation of various service conditions such as coastal, tunnel and plateau, and has a good application prospect.

The invention discloses a single-rail observation vehicle for absolutely locking rail temperature of a seamless track, which comprises a rail travelling crane arranged on the top of a steel rail and capable of travelling along the length direction of the steel rail, a Beidou antenna mounted on the rail travelling crane, side wheel type limiting mechanisms mounted at the front end and the rear end of the rail travelling crane respectively, and a switching mechanism mounted on the rail travelling crane, the switching mechanism is connected with an observation line set recognition mechanism, and the observation line set recognition mechanism is used for recognizing observation line sets sprayed to the two side faces of the rail waist. The method is used for monitoring the rail temperature, passive first-aid repair of the seamless rail track can be converted into active prevention and control, safety risks caused by joint diseases are reduced, the economic cost of repeated maintenance is reduced, and the method is an important technical support for safe operation of the seamless rail track. The method is suitable for the technical field of seamless track temperature monitoring.