1911 results about "Rail transportation" patented technology

The invention discloses a rail transportation train automatic monitoring system based on communication, which comprises on-board equipment and a ground automatic monitoring system. The on-board equipment arranged on the train is used for collecting train information and sending to the ground automatic monitoring system through a wireless network, and is also used for receiving and executing dispatching commands sent by the ground automatic monitoring system. The ground automatic monitoring system is used for receiving the train information from the on-board equipment, interlocking calculating according to the train information to generate dispatching commands and sending the commands to the on-board equipment through the wireless network. The invention realizes the closed loop control to the train through the train-ground bidirectional information transmission, greatly lowers the effect of human error, and raises the system reliability; ATS system real-timely knows various operation parameters of the train such as the position, the speed, etc. thereby improving the operation efficiency and the automation of the system; moving block is realized through wireless communication, thereby facilitating the improvement of traffic density; and the train can timely respond the dispatching and the adjusting commands of the ATS system.

A storage area is accessed by automated guided vehicles which receive and unload containerized loads. On the waterside, loads are exchanged between the vehicles and ships using quay cranes. On the ground transportation side, loads are exchanged between the vehicles and truck or rail carriers using semi automated or automated remote-controlled bridge cranes. Within the storage area, loads are exchanged between the vehicles and the storage facilities using automated stacking cranes. The vehicles are adapted to receive a cassette storage platform which in turn receives standard ISO containers. The vehicles also are adapted to receive one or more alternative platforms including a coning platform for workers to manage container coning, a reefer access and maintenance platform, and a worker transport platform.

A track and carriage system that includes a pair of spaced apart parallel rails and a carriage rollingly mounted on the rails. The carriage is a rectangular, in plan view, structural unit having a pair of opposite parallel marginal edges with a frame side rail secured to each of the marginal edges. Rollers journalled on the side rails rollingly support the carriage on the rails. A motor mounting subassembly carried by the carriage provides a downwardly facing channel that receives therein a portion of one of the rails. A plurality of rollers on the motor mounting subassembly maintains a minium air gap between a linear motor mounted on the subassembly and a magnetic strip on an adjacently disposed side face of one of the rails. The carriage structural portion maybe a plurality of beams disposed side-by-side or one or more extruded monolithic cast structures. A structural plate like member maybe mounted on the load carrying frame. If desired a power driven roller conveyor maybe mounted on the carriage for loading and off loading goods. Also the motor mounting subassembly and a frame side rail secured thereto running on a single rail provides a mono rail transfer vehicle.

The invention discloses a train tracing running method implemented without secondary railway testing equipment and a communication based train control (CBTC) system. The method comprises the following steps that in the train running process, a vehicle on board controller (VOBC) of a train checks whether an object controller (OC) waiting to set up communication connection exists or not in the front of a present running line; if the OC waiting to set up communication connection exists, a communication setting request is sent to the OC; the state of a present jurisdiction is checked after the OC receives the communication setting request; if the OC confirms that the present jurisdiction is in a normal communication state, responses to identification (ID) information of all communication trains in the jurisdiction of the OC are sent to the train; the VOBC can recognize the ID information of a front train adjacent to the present train according to the ID information of all the communication trains; the VOBC sets up communications with the adjacent front train according to the ID information of the adjacent front train and obtains running state information of the adjacent front train; and according to the running state information of the adjacent front train and the running state information of the present train, movement authority (MA) in the jurisdiction of the OC is obtained so as to trace running of the front train. Efficiency of railway transportation can be improved greatly by means of the train tracing running method.

The present invention discloses on-line detection method and device for train wheel pair size. There are two pairs or four coaxial laser displacement detectors set on two sides of two tracks to send laser beams projected obliquely to the wheel pair for detecting the distances between each wheel end place to the laser detector, one high speed data acquisition and treat circuit, and one industrial control computer for recording, analysis and displaying. Based on PSD laser position measurement, the present invention can measure the flange thickness, flange height, wheel diameter and distance between backs of wheel flanges of high speed train in high precision.

The method according to the invention comprises the following steps: first transport by truck to the nearest station equipped with a special pivot station (1); placing the cargo unit (2) on the ground or on a transfer system (4) , the transfer system in turn provides an automatic loading platform that loads the cargo unit (2) onto a railcar (3) with a system for horizontal translation through an auxiliary servo remote control system.

The rail transportation system of small vehicles is used to replace available underground railway and light rail system, and has small driverless vehicles running in closed rail. The system consists of vehicles, closed rails and stations, the vehicles are computerized automatic ones, the closed rails is provided with vehicle controlling equipment, and the vehicles are started from stations randomly for express service from station to station. The present invention has the advantages of great traffic amount similar to that of main stem transportation, personalized service, low construction investment and low running expensive. It may be used for both passenger transport and cargo transport, and municipal rail transportation network may be constructed.

The invention discloses a dust inhibitor, which comprises the following raw material in percentage by weight: 0.6 to 0.8 percent of plant seed colloid, 0.1 to 0.3 percent of modified cellulose, 0.05 to 0.09 percent of dispersant and the balance of water. The dust inhibitor can be prepared at normal temperature in a common mixing equipment from mixed aqueous solution of plant seed colloid, modified cellulose, crosslinking agent, dispersant and reinforcing agent; and after being prepared, the dust inhibitor can be sprayed onto the surface of coal in carriages to allow the coal to form a layer of cured film on the surface, the viscosity of the film is high, the wind corrosion rate of the film is low, so that the dust pollution along railways in railway transportation of the coal and the dust loss of the coal are avoided. Besides, dust inhibition in railway coal transportation, the dust inhibitor can be used for dust inhibition on roads in mining areas, urban roads, constructions sites, stations, ports and the like so that the dust inhibitor can be used almost without being limited by fields, and the dust inhibitor can be widely used.

The invention discloses a high-speed railway traffic dispatching command and train running control network cooperation system which belongs to the technical field of railway transportation. The systemconsists of two major parts of a railway sand table demonstration system and a high-speed railway traffic dispatching command system; a railway sand table is a hardware system, comprises a train subsystem and a track subsystem and is connected with a communication switch by a track circuit and an interlock machine cabinet; and the high-speed railway traffic dispatching command system is a software system, comprises five major modules for system control, train control, running chart treatment, sequencing of receiving-departure track routing and network cooperation and is connected with the communication switch by a command sending subsystem and an information receiving subsystem. The system organically links up the railway sand table and the dispatching command system into a whole throughthe communication switch, realizes the multi-person multi-machine network cooperation operation, greatly improves the teaching effect and firstly realizes the teaching mode of integrated management and control and network cooperation operation in the railway transportation teaching experiment.

The invention relates to an ice melting method for overhead contact system of an electrified railway and an ice melting system thereof. Major hazards of ice coating of the overhead contact system include accidents that pantograph of electric locomotives can not contact with a contact line to obtain current, contact system brandishes, even falls of piles and collapses, and the like. In the ice melting method and the ice melting system thereof, an upper overhead contact system and a lower overhead contact system are connected in series to form a circuit by a section post, AC or DC ice melting current is input at the head end of the circuit, ice coating thickness and safe ice melting current value are obtained by analyzing meteorological and overhead contact system parameters with an ice coating data processing and control module, and then the ice melting system is controlled to output the ice melting current at the end of the circuit, thus ice is molten by Joule heat generated by the current. In the ice melting method and the ice melting system thereof, ice attached to the contact line is molten by joule heat, and compared with the deicing modes of artificial knock and the like of operation departments, the ice melting method and the ice melting system thereof greatly improve deicing efficiency, thus reducing the effect on railway transport, and eliminating damages of external force on the contact line.

The invention relates to the field of rail transportation and discloses a heavy-haul railway moving block system based on wireless communication. The heavy-haul railway moving block system comprises acommunication device, a positioning device, a train-mounted control device and a wireless block center. The train-mounted control device is located on a train and used for receiving train position information from the positioning device. The communication device is connected with the train-mounted control device and used for sending the train position information. The wireless block center is located on the ground and used for receiving the train position information and sending the driving permission according to the train position information. The communication device is further used for receiving the driving permission. According to the heavy-haul railway moving block system based on wireless communication, the number of rail installation transponders can be effectively reduced, the positioning precision and efficiency of the train can be effectively improved, the maintenance cost of the rail devices is reduced, meanwhile, the availability of a positioning system under a special environment is guaranteed, and the heavy-haul railway moving block system is perfect and practical.

The invention provides an ecological environment-friendly dust inhibitor which comprises the following components by weight percent: 0.5-0.8% of modified starch, 0.05-0.10% of microbial polysaccharide, 0.1-0.3% of cellulose derivative, 0.05-0.10% of netty accelerant, 0.05-0.15% of flow dispersant, 0.01-0.10% of film forming agent and 98.0-99.0% of water. The dust inhibitor can enable coal or mineral powder to form a layer of curing film on the surface, is high in viscosity and low in wind erosion rate, can avoid the flowing dust pollution and the flowing dust loss of the coal or the mineral powder to the way side in the railway transportation process, and has a huge economic benefit and a social benefit of environmental protection for railway transportation and coal or mineral powder customers; and the components and a solution of the dust inhibitor do not have any toxic side effect and corrosive effect, the dust inhibitor does not cause any secondary pollution as the dust inhibitor can be quickly and biochemically degraded in the nature after the dust inhibition action period, and the soil can be properly improved.

The present invention provides a scissor-like door gate transit logic identification device, which belongs to rail transportation, ticket selling and checking service, building and specific place security access control, and venue access control field. The scissor-like door gate transit logic identification device comprises a left gate and a right gate which are oppositely arranged, and a pedestrian access is formed between the left gate and the right gate; a door leaf on the left gate and a door leaf on the right gate form a scissor-like door; one side of the scissor-like door is a non-paying area, and the other side of the scissor-like door is a paying area; the direction from the non-paying area to the paying area is the inbound direction, the direction from the paying area to the non-paying area is the outbound direction; sensors are respectively arranged on the left gate and the right gate, and the sensors comprise opposite-type infrared photoelectric sensors and diffuse reflection sensors; the diffuse reflection sensor is used to determine the height and the volume of an object; and the transmitting terminal and the receiving terminal of each opposite-type infrared photoelectric sensor are mounted one to one symmetrically on the left gate and the right gate.

The invention relates to a control method and device for station train running operation during the railway transportation. The control method for station train running operation is characterized in that the current station site lines, equipment and train running static basic data is used as train route inherent card control principles and conditions; through the train plan planning, dispatching command processing and flow process operation setting, the train card control conditions are enriched and refined; the route integral card control condition of each train is formed; in addition, one-by-one checking and rechecking are performed on various card control conditions before the train route building; route handling is performed after the errorless condition is confirmed. The control device for station train running operation provided by the invention comprises a plurality of function modules; the method provided by the invention is realized through each functional module; the timeliness and the comprehensiveness of the card control condition inspection are ensured; the correctness of the route building is ensured; the occurrence of wrong route handling problem is fundamentally avoided.

The invention belongs to the technical field of bogie systems, and particularly relates to a variable gauge bogie. The variable gauge bogie comprises an axle assembly, a sliding key assembly and an axle box assembly. The axle assembly comprises an axle and a bearing and wheel integrated mounting seat. The sliding key assembly comprises a sliding part. The axle box assembly comprises an axle box and a bearing. The position from a wheel seat to the end part of the axle is provided with a moving pair connecting part. The bearing and wheel integrated mounting seat comprises a bearing mounting seat and a wheel mounting seat which are mutually connected and further comprises a moving pair junction part. The moving pair junction part and the moving pair connecting part form an axial moving pair. The sliding part is of a cylindrical body. The outer side wall of the cylindrical body is in axial slidable connection with the axle box. The inner side wall of the cylindrical body is in axial fixed connection with the bearing mounting seat through the bearing. The wheel axial direction of the variable gauge bogie is adjustable to be adapted to different gauges, railway transportation of ''Silk Road Economic Belt'' is developed, and the problem that railway gauges are not uniform must be solved, therefore, it is very important and far-reaching to carry out design of the variable gauge bogie.

In order to improve the safety with which commodities (including regulated hazardous materials) can be shipped by rail around the country in tank cars and the like, each tank and associated undercarriage and structure is inspected and requalified according to an exhaustive predetermined list of sites, tests, parameters and apparatus comprising, broadly, determining which type of vehicle is under inspection and selecting an exhaustive list of sites to be inspected for the identified type of vehicle from an instruction set. Each of the listed sites is inspected in accord with the instructions set forth for each of the listed sites in the instruction set and the data derived from implementation of the tests conducted at each of the exhaustive list of sites is recorded.

The invention discloses a coal railway transportation dust depressor, which is invented for solving the problems of high cost, poor depression effect and so on in the prior art. The raw materials by weight percent for preparing effective compositions in the coal railway transportation dust depressor are: 2 to 7 percent of synthesized water-soluble polymer, 0.1 to 5 percent of modified cellulose water-soluble polymer, 85 to 95 percent of water and 0 to 2 percent of bluestone, wherein the synthesized water-soluble polymer is prepared by complexing at least two water-soluble polymers. The coal railway transportation dust depressor consists of more than two synthesized water-soluble polymers and a small amount of auxiliary agent, and has the advantages of high viscosity and low cost. When used, the coal railway transportation dust depressor is uniformly sprayed on particles on the surface of a coal bed to form a curing layer with certain strength, thereby the coal-dust particles of various grain sizes are bonded together and have certain toughness, and the aim of preventing flying dust on the surface of the coal bed is achieved.

The invention discloses a contact network failure detection and diagnosis method based on an unmanned aerial vehicle, which comprises the following steps: (1) image acquisition: carrying a video camera to shoot along a contact network by an unmanned aerial vehicle so as to respectively acquire contact network images under visible light and infrared light; (2) image graying; (3) image enhancement; (4) image segmentation; (5) image dissection; (6) image fusion: fusing Laplacian pyramid layers under visible light with corresponding Laplacian pyramid layers under infrared light, and carrying out image reconstruction on the fused Laplacian pyramid to obtain a contact network component image after the visible light image and the infrared light image are fused; and (7) carrying out image identification and failure judgment by a BP (back-propagation) neural network. The method can be used for effectively acquiring a contact network image in the operation process of a locomotive in a multidirectional multiangular real-time mode, automatically identifying the contact network component in the image, and judging whether the contact network fails and the type of the failure; and the judgment result is more accurate and reliable, and can better ensure the safety of railway transportation.

A wireless channel forecast method aiming at rail transportation is disclosed, belonging to the technical field of wireless and mobile communication, characterized in that the method comprises the following steps of: using channel measurement means to record channel state of rail lines to obtain a large number of test data samples of the channel state information, and meanwhile to record the geological location coordinates of the train; performing statistics analysis to the large number of data samples of the channel, establishing corresponding relationship between the geological location coordinates of the train and the corresponding channel state information; in actual communication process, calculating an operating location in a future time by the train in accordance with the current operating location and speed, searching for the corresponding channel state information from the corresponding relationship so as to forecast the channel; then correcting the forecast result by means of sending pilot frequency; applying the channel state information obtained through forecast to the sending terminal.

The invention discloses a highway-railway convertible car, comprising a highway container semi-trailer, a one-position traction bolster assembly, a two-position traction bolster assembly, a coupler buffer device, a bogie and an air and manual brake device. The highway container semi-trailer comprises a frame, container locks, ground jacks, a suspension damping system and protective devices. Two parallel centre sill assemblies are welded by adopting connection plate assemblies, to form the main part for bearing the railway longitudinal force; a secondary hook and a primary hook serve as the connectors and are connected with traction bolster assemblies at the head and the tail, so that the highway-railway convertible car can meet the requirement of railway transportation; when the highway-railway convertible car is used for railway transportation, a rear protective device is overturned upwards from the outside of the car around a rotating shaft, so that the requirements of assembling the railway bogie and the car body are met; and the suspension damping system adopts vibration damping gasbag and lifting gasbag structures, so that the matching of the highway container semi-trailer, a highway semi-trailer tractor and the bogie of the highway-railway convertible car during the conversion between highways and railways and the requirement of the gap between the road tire and the lower margin during railway transportation are met.

The invention belongs to the technical field of materials, and particularly relates to a hybrid fiber reinforced friction material for train braking and a preparation method thereof. In the invention, a composite modified phenolic resin is used as an adhesive, and hybrid fibers, including carbon fiber, metal fiber, inorganic mineral fiber and the like, are used as the reinforcing fibers. Compared with the prior art, the invention improves the contour machining property of the organic synthetic brake, and the yield of the material is high; the brake has stable frictional property at different braking speeds, does not has obvious degradation of frictional property at high speed, and does not have the phenomena of shedding and cracking on the working surface after the braking test. The friction material provided by the invention can be widely used for manufacturing brake pads, brakes, brake shoes and the like in braking systems of passenger and freight trains, municipal rail transportation, subways and the like.

The invention relates to a halogen-free flame-retardant continuous fiber reinforced polypropylene composite material and a preparation method thereof. The material comprises the following components, by weight, 100 parts of polypropylene, 15-100 parts of continuous fiber, 1-12 parts of maleic anhydride grafted polypropylene, 0.08-0.7 parts of an antioxidant 1010, 0.06-0.6 parts of an antioxidant 168, 0.05-3 parts of a silicane coupling agent KH550, and 20-120 parts of a halogen-free expansion type flame retardant agent. According to the present invention, the flame-retardant agent comprising ammonium polyphosphate, melamine, a melamine borate and pentaerythritol is compounded with the polypropylene, such that the excellent flame-retardant performance is provided for the polypropylene; with the enhancement through the high performance continuous fiber, the mechanical property of the material is substantially improved; the flame-retardant material of the present invention does not contain halogen, the amount of the generated smoke is less, and the toxicity of the smoke is low; the requirements in fields of electricity, rail transportation, construction and the like can be met.

The invention discloses a safety overlay collision avoidance system for train of CTCS (Chinese Train Control System) based on vehicular-to-vehicular communication. The system comprises a collision avoidance system vital computer, an electronic map database, a velocity measuring and positioning sub system, a vehicular-to-vehicular communication sub system and a man-machine interaction sub system. The collision avoidance system vital computer calculates and analyzes the collision probability by integrating velocity information, position information and direction information of the train as well as velocity information, position information and direction information of adjacent trains received by the vehicular-to-vehicular communication sub system as well as the electronic map data, and gives an alarm prompt and a handling suggestion according to the level of collision; the electronic map database provides electronic map data for the collision avoidance system vital computer and the velocity measuring and positioning sub system; the man-machine interaction sub system inputs data of the train and gives the alarm prompt if collision occurs probably. The invention can enhance the safety level of railway transportation essentially and overcome the deficiency that collision occurs when the control center malfunctions and vehicular-to-ground communication is not smooth, and has high social benefit. The system provided by the invention can be overlaid on the CTCS and share train data information with the CTCS.

The invention discloses a section traffic neural network prediction method based on the EMD, and belongs to the technical field of rail transportation. The method comprises the first step of obtaining components of an intrinsic mode function, wherein summary traffic between OD every 30 minutes every day is distributed into section traffic information to form a section traffic original sequence, the EMD processing is carried out on the original sequence, IMF components are obtained, and an IMF matrix is formed; the second step of identifying the components, wherein a Pearson correlation coefficient between each IMF component and the original traffic sequence is calculated, and the relevance between the coefficients and original data is analyzed; the third step of predicting a neural network, wherein a three-layer BP network model is built, test data serving as the input data of an input layer are substituted into the BP neural network to carry out prediction, and corresponding section traffic output can be obtained. According to the method, the EMD and the neural network are mixed, the characteristics of the traffic data are analyzed, and input variables are provided for the neural network prediction method. By means of the method, the prediction precision of the section traffic can be greater than 95%.

The invention provides a safe and real-time detection system and a method of heavy haulage lines based on an optical fiber sensor network, relating to the technical field of optical fiber sensor networks and solving the problems of low precision, high cost and inconvenient real-time on-line detection of the existing heavy haulage rail haulage line safety monitoring technology. A rail fiber bragg grating strain sensor, a rail fiber bragg grating strain and acceleration combined sensor and a bridge fiber bragg grating strain and temperature combined temperature sensor are connected in series to form a monitoring area via transfer optical fibers; light emitted by a light source is incident in the monitoring area by a coupler; and when a heaving haul train passes through the rails in the monitoring areas, the running state among rails can lead the reflective wavelength of the fiber bragg grating to change, a computer judges the fracture condition at a rail seamless welding part, the damage conditions of train wheels, rails and roadbeds, inner strain condition caused by expansion and contraction of rails due to temperature and bridge structure safe state according to the change condition of the reflective wavelength. The invention is applicable to on-line monitoring of the heavy haulage lines.

The present invention relates to vehicle fittings. The carbon fiber reinforced slide plate for pantograph of electric locomotive is manufactured with graphite, electrolytic copper powder / copper fiber as conducting stuffing, carbon fiber as reinforcing material and heat resisting modified phenolic resin as adhesive and through hot pressing. It has excellent friction performance, long service life, few wear of contacted wire, excellent mechanism performance and impact strength as high as ten times that of metal soaked carbon slide plate. The manufacture process has low cost, low power consumption and short period. The carbon fiber reinforced slide plate may be used in pantograph for rail transportation.

The invention belongs to a railway transportation field and relates to a device for measuring horizontally and vertically dynamic displacement of a high-speed railway track line. The device comprises two baffle boards which are equipped at middle of the measured rail perpendicular to the ground or form an angle of 45 degrees with the ground, two laser displacement sensors, and a portable data processing and displaying device; making use of the baffle board which forms an angle of 45 degrees with the ground, the vertical displacement of the track line is converted into a change amount of a horizontal distance by a proportion of 1:1 equivalently; heads of the two laser displacement sensors are aligned with the two baffle boards to measure the dynamic horizontal displacement and the compound displacement including the horizontal displacement and the vertical displacement when a high-speed train passes; the data measured by the two laser displacement sensors are processed by the portable data processing and displaying device, and then the instantaneous horizontal and vertical displacement during the high-speed train passing the track line can be read directly; The measuring device has the advantages of accurate measured data and high respond speed.

The invention discloses a universal transport packing case for a remote sensing satellite, which comprises a case cover and a case bottom, wherein an air conditioner, a temperature-humidity sensor, an inflatable / deflatable device capable of being automatically and / or manually inflated or deflated, hoisting points, transport fixing points and a data acquisition and control system are arranged on the case cover; a damping device is arranged on the inner side of the case bottom; an L-shaped bracket used during integrated satellite transport or a transport bracket used during subdivided transport, sensors comprising the temperature-humidity sensor and the like, and fans are arranged above the damping device; the data acquisition and control system is respectively and electrically telecommunicated with the temperature-humidity sensor, a pressure sensor, a vibration sensor, an impact sensor and the like, and is electrically telecommunicated with a remote control terminal so as to conveniently control the transport of the remote sensing satellite over a long distance in real time. The universal transport packing case for the remote sensing satellite can fulfill functions of highway transport, railway transport, system leakage detection and the like when different remote sensing satellites in integrated states or subdivided states are in various working conditions, the remote sensing satellites in the integrated states or the subdivided states can be highly reliably transported and the satellite development cycle is simultaneously shortened.

The invention relates to a rotary piezoelectric generator for a rail vehicle shafting monitoring system and belongs to the technical field of rail transportation monitoring and piezoelectric generation. A wheel shaft is arranged on a frame by a bearing; the small end of a T-shaped choke block is arranged at the end part of the wheel shaft and is pressed on a bearing inner ring, and the two sides of the large end of the T-shaped choke block are respectively provided with a piezoelectric transducer and a sensing monitoring system which are connected by a wire set; the piezoelectric transducer is formed by bonding a circular metal substrate, a fan-shaped piezoelectric crystal plate and a fan-shaped magnetic sheet; a bearing cap is arranged on the frame by a bolt, and a first static magnet and a second static magnet are inlaid at the internal bottom of the bearing cap, and the configuration directions of the magnetic poles of the first and second static magnets are opposite. The rotary piezoelectric generator has the advantages that the generator rotates along with the shaft so as to supply power for the monitoring system rotating along with the shaft conveniently, the deformation and generation are not affected by the rotation state of the wheel shaft; the generation capability and rotating speed adaptation capability are strong, and the reliability is high.