Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

1902 results about "Rail transportation" patented technology

Rail transit train automatic monitoring system based on communication

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.
Owner:北京和利时系统集成有限公司

Train tracing running method implemented without secondary railway testing equipment and communication based train control (CBTC) system

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.
Owner:TRAFFIC CONTROL TECH CO LTD

High-speed railway traffic dispatching command and train running control network cooperation system

InactiveCN101673479ARealize the integration of management and controlCosmonautic condition simulationsSimulatorsMulti machineSoftware system
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.
Owner:BEIJING JIAOTONG UNIV

Ice melting method for overhead contact system of electrified railway and ice melting system thereof

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.
Owner:CHINA RAILWAY FIRST SURVEY & DESIGN INST GRP

Heavy-haul railway moving block system based on wireless communication

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.
Owner:CHINA SHENHUA ENERGY CO LTD +2

Scissor-like door gate transit logic identification device and method

InactiveCN105354898APrevent abnormal situations such as trailing passSampling frequency can be adjustedIndividual entry/exit registersTraffic restrictionsDiffuse reflectionIdentification device
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.
Owner:北京中软万维网络技术有限公司 +1

Variable gauge bogie

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.
Owner:SOUTHWEST JIAOTONG UNIV +1

Contact network failure detection and diagnosis method based on unmanned aerial vehicle

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.
Owner:SOUTHWEST JIAOTONG UNIV

Highway-railway convertible car

ActiveCN106394681AMeet the requirements of transport tractionPrevent and block accessUnderstructuresVehicular safety arrangmentsRotational axisBogie
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.
Owner:CRRC YANGTZE CO LTD

Safety overlay collision avoidance system for train of CTCS (Chinese Train Control System) based on vehicular-to-vehicular communication and method thereof

InactiveCN102700571AImprove the level of transportation safetyOvercoming the Deficiencies of Collision AccidentsRailway signalling and safetyData informationEngineering
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.
Owner:LANZHOU JIAOTONG UNIV

Section traffic neural network prediction method based on EMD

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%.
Owner:BEIJING JIAOTONG UNIV

Safe and real-time detection system and method of heavy haulage lines based on optical fiber sensor network

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.
Owner:HEILONGJIANG UNIV

Transverse and vertical dynamic displacement measuring device of high-speed railway track circuit

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.
Owner:李诚

Universal transport packing case for remote sensing satellite

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.
Owner:BEIJING INST OF SPACECRAFT ENVIRONMENT ENG

Rotary piezoelectric generator for rail vehicle shafting monitoring system

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.
Owner:ZHEJIANG NORMAL UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products