50 results about "Rail infrastructure" patented technology

The vehicles (12) of at least one fleet of rail vehicles are provided with on-board sensors (22) and rail vehicle positioning means (23). The rail infrastructure on which the rail vehicles circulate is provided with fixed rail infrastructure sensors (18). The rail infrastructure-related sensor data is merged with the rail vehicle-related sensor data, with location data representative of the location of the rail infrastructure-related sensors and with the rail vehicle position data for generating series of categorized event data representative of the occurrence of categorized events at a given location on the rail infrastructure over time and/or on a given rail vehicle of the fleet over time. The series of categorized events data representative of at least one category of events can be compared over any predetermined period of time to identify any location of the rail infrastructure and/or any rail vehicle which exhibits a series of events data that is significantly different from the other locations of the rail infrastructure and/or rail vehicles of the fleet over said predetermined period of time.

RailPods are an alternative personal rapid transit system that operate on and utilize existing railroad infrastructure. RailPods are one to two passenger vehicles that travel on one rail of a traditional railroad track. RailPods provide on-demand transportation to cities and towns where rail exists or can be built.

The present disclosure relates to a transitional mode high speed rail system. The high speed rail infrastructure employed by the system is constructed adjacent a conventional host highway. The infrastructure can be provided adjacent to acceleration/deceleration lanes, or emergency parking/paved shoulder lanes. The vehicles used by the system are individual, self-powered, self-operating, individual mass passenger transport vehicles similar in size and appearance to municipal buses. These are transitional mode vehicles because they operate as railroad vehicles on the high speed rail infrastructure, but transition to automotive vehicle mode traveling on ordinary paved roads. They are mass passenger transport vehicles because many passengers can be accommodated.

The invention discloses a track fastener fastener looseness detection method based on texture and depth images, and belongs to the field of railway infrastructure detection. The method mainly comprises the following steps: acquiring a surface texture image and a depth image of the rail fastener fastener by adopting a texture and depth hybrid imaging system; in the texture and depth images, calculating the floating height and the rotating angle of the fastener moving part, and judging whether the fastener is loosened or not according to whether the floating height and the rotating angle exceedset thresholds or not. Height change and angle change information of fastener looseness in the texture image and the depth image are comprehensively utilized, fastener looseness detection can be effectively achieved, and safe operation of a railway is effectively guaranteed.

A multi-level system for management of a railway system and its operational components in which the railway system has a first level configured to optimize an operation within the first level that includes first level operational parameters which define operational characteristics and data of the first level, and a second level configured to optimize an operation within the second level that includes second level operational parameters which define the operational characteristic and data of the second level. The first level provides the second level with the first level operational parameters, and the second level provides the first level with the second level operational parameters, such that optimizing the operation within the first level and optimizing the operation within the second level are each a function of optimizing a system optimization parameter. The levels can include a railroad infrastructure level, a track network level, a train level, a consist level and a locomotive level.

The invention relates to equipment in the field of detection for railway foundation facilities, in particular to a system and a method for detecting cracks of fasteners of high-speed rails and subways. The system and the method for detecting the cracks of the fasteners of the high-speed rails and the subways aim to overcome the shortcoming that an existing fastener technology only can be used for detecting absence and looseness of fasteners but cannot be used for detecting whether the fasteners have cracks or not. The system and the method can be used for quickly detecting absence, partial damage and absence and the cracks of the fasteners of the high-speed rails and the subways in an online manner, and have the advantages of high identification speed, high detailed information embodiment effect, capability of precisely shooting the cracks, and the like. Images are respectively triggered and acquired bilaterally by utilizing the characteristic that the existing fasteners of the high-speed rails and the subways are bilaterally symmetrically mounted along the rails, and in other words, a right image acquisition system can acquire an image of a right fastener while a left photoelectric trigger is triggered by a left fastener of a rail.

The invention discloses a method for detecting floating of track fastener bolts based on height comparison, which belongs to the field of railway infrastructure detection. The method mainly comprisesthe following steps of: obtaining three-dimensional shape data of the track fastener and converting the date into a two-dimensional depth image; determining an area of interest of the bolts in the two-dimensional depth image; and calculating bolt height in the area of interest of the bolts, and comparing the bolt height with reference height value when the bolts are not floating, for detecting whether the bolts are floating. The method for detecting floating of the track fastener bolts disclosed by the invention has the advantages that an existing railway fastener structure is not changed, themethod is simple and reliable, use range is wide, use mode is flexible, and the like, the loose defect of the fastener can be effectively detected in advance, and running safety of the track is guaranteed.

Described herein is a fluid device for the recovery of the kinetic energy of land vehicles, comprising an intake line, a delivery line, and a pumping unit, which is connected to the intake line and to the delivery line, and at least one actuating element set along a street or railroad course of an infrastructure for the transit of vehicles, functionally connected to the pumping unit and mobile between a position of unloading and a position of loading, in which the actuating element is designed to be surmounted by a vehicle travelling along the street or railroad infrastructure.

The invention discloses a detection method for looseness of a track fastener nut based on height comparison, and belongs to the field of railway infrastructure construction detection. The detection method comprises the main steps that three-dimensional shape data of a track fastener is acquired and converted into a two-dimensional depth image; and the nut ROI is determined in the two-dimensional depth image, and the nut height is calculated in the nut ROI and compared with the reference height when the nut is not loosened to detect whether the nut is loosened or not. The detection method is convenient to use, does not change a structure of existing railway fasteners, can detect the looseness of various types of fastener nuts, and can effectively guarantee railway operation safety.

The invention discloses a track fastener looseness detection method based on angle comparison, and belongs to the field of railway infrastructure detection. The method mainly comprises the following main steps of acquiring a track fastener image by adopting a linear array or area array imaging device, carrying out image preprocessing, selecting a region of interest of a fastener, identifying a bolt region from the region of interest, carrying out template matching, computing a bolt rotation angle, judging whether a bolt rotates or floats according to a threshold angle, and then judging whetherthe track fastener is loose or not. The detection method provided by the invention is convenient to use, the structure of an existing railway fastener cannot be changed, and whether the track fastener is loose or not can be judged by detecting whether multiple types of fastener bolts or nuts rotate or float.

The invention provides a high-speed rail infrastructure deformation monitoring system and method based on a Beidou multi-antenna array. The system comprises a Beidou antenna, a signal amplifier, a feeder line and a Beidou receiver which are connected in sequence. The plurality of Beidou antennas are respectively arranged under a high-speed rail line, on a roadbed and at the fixed end of a bridge; during monitoring, an absolute monitoring method or a relative monitoring method is adopted according to the length of the base line. Base line vectors between the base stations and between the base stations and the monitoring stations are obtained; and carrying out networking adjustment on the baseline vectors between the reference stations and between the reference stations and the monitoring stations, and respectively extracting a coordinate vector of each monitoring station to obtain a final deformation amount.

The invention discloses a railway comprehensive inspection system. An attitude determination and positioning system acquires GNSS, IMU and DMI data of a comprehensive inspection vehicle, a laser radar acquires three-dimensional coordinates of a measured object, and a panoramic camera acquires panoramic image data. And the time-space synchronization system provides clock synchronization for the three-dimensional coordinates, the IMU, the DMI and the panoramic image data according to GNSS time service. And the storage/control system stores the three-dimensional coordinates, the IMU, the DMI and the panoramic image data after clock synchronization in real time. The point cloud processing system firstly uses GNSS, IMU and DMI data to fuse and calculate POS data, then uses the POS data and laser radar data to jointly calculate point cloud data, and carries out fusion processing on the point cloud and panoramic image data to obtain a real scene point cloud. And the comprehensive inspection analysis system performs railway infrastructure detection analysis by taking the point cloud and the panoramic image as a data source. The technical problems that an existing system is high in complexity and labor cost and large in data processing difficulty can be solved.

The invention discloses a fastener elastic strip displacement detection method, and belongs to the field of railway infrastructure detection. The method mainly comprises the following steps: acquiringthree-dimensional topography data on two sides of a track through a three-dimensional imaging system, converting the three-dimensional topography data into a two-dimensional depth image, extracting an elastic strip displacement salient region image, accurately extracting an elastic strip displacement region contour, calculating an elastic strip displacement distance, and judging whether an elastic strip displacement risk exists or not according to the elastic strip displacement distance and a set threshold value. The detection method provided by the invention can automatically and effectivelydetect the displacement of the fastener elastic strip, and eliminates the potential safety hazard of train operation in time.

The invention discloses a method for detecting a spring tongue gap of a fastener and belongs to the field of railway infrastructure inspection. The method comprises the main steps of obtaining three-dimensional morphology data at two sides of an orbit through a three-dimensional data acquisition system and converting the three-dimensional morphology data into a two-dimensional depth image; extracting local two-dimensional depth image of an area in which the fastener is located and carrying out thresholding processing on the local two-dimensional depth image; extracting an outline of a bolt ofthe fastener and calculating the center position of the bolt; carrying out sampling towards one side of a steel rail by employing the center of the bolt as a starting point and then carrying out thresholding processing on a sampling sequence; and calculating a spring tongue height of the fastener and a spring tongue gap height and judging whether a spring tongue gap risk exists or not according toa threshold. According to the detection method disclosed by the invention, the spring tongue gap of the fastener can be automatically and effectively detected and the potential safety hazard in trainoperation is eliminated in time.

A repair kit for use in preparing a polymeric composite material and methods for preparing the polymer composite material are described. The repair kit includes a sealed container and a first removable divider arranged transversely across the sealed container. The divider is configured to engage the sealed container to form a first compartment and a second compartment. The first compartment and the second compartment are isolated from one another when the first removable divider is engaged with the sealed container. The first compartment contains a resin component and the second compartment contains a reactive component. The sealed container is configured such that removal of the first removable divider enables mixing of the resin component and the reactive component within the sealed container. The repair kit may also include a second removable divider to form a third compartment. The repair kit may also include a catalyst and a filler. The polymeric composite material can be used in repairing damaged surfaces, including pavements, roadways, facilities, structures, and railway infrastructure.

The invention provides a fluid device for the recovery of the kinetic energy of vehicles, comprising an intake line, a delivery line, and a pumping unit, which is connected to the intake line and to the delivery line and is used for sending fluid under pressure to the delivery line from the intake line, and one actuating element which is capable of elastic deformation and set along a street or railroad course of an infrastructure for the transit of land vehicles, cooperated with the pumping unit and mobile between a position of unloading and a position of loading, in which the actuating element is designed to be surmounted by a vehicle travelling along the street or railroad infrastructure, the actuating element has a contact surface contacted with the vehicles. The fluid device is characterized in that the pumping unit comprises a rigid wall, and a membrane, which is connected to the rigid wall in a fluid sealing manner and cooperated with the actuating element to pump the fluid to the delivery line.

The invention discloses an ultra-high-speed magnetic levitation test system adopting differential levitation guide and a bilateral linear motor. The ultra-high-speed magnetic levitation test system comprises a pneumatic streamline shell, a supporting walking mechanism, a differential levitation magnet, a differential guide magnet, a levitation rail surface, a guide rail surface, a linear motor rotor, a linear motor bilateral stator and a rail infrastructure. The supporting walking mechanism comprises an upper-layer vehicle body frame, a lower-layer L-shaped supporting arm and a rotor fixing base. A sleeper part of the track infrastructure extends into a suspension cavity defined by the lower-layer L-shaped supporting arm and the upper-layer vehicle body frame, the differential type suspension magnet is vertically arranged in the suspension cavity, and the differential type guide magnet is transversely arranged in the suspension cavity. Structural switching of an electromagnetic attraction force and electric repulsion force two-type suspension guide scheme and an asynchronous induction and permanent magnet synchronous two-type linear motor mover scheme is realized, and full technical verification and performance comparison can be performed on the two-type suspension guide and linear motor schemes. And a theoretical basis and a test support are provided for research and development of an ultrahigh-speed magnetic levitation system and selection of related technical schemes.

An Urban Intermodal Freight System is capable of transporting large volumes and tonnage of freight by containerized or other means on a mass transit rail system. It captures excess capacity in the existing mass transit rail infrastructure to move packages, parcels, and freight by using miniaturized intermodal cargo containers that are designed to integrate seamlessly with the existing transit infrastructure, while displacing delivery trucks from increasingly crowded city streets. By enabling inbound trucks to transfer their cargo to the Urban Intermodal Freight System at a city's outskirts, freight is delivered without trucks entering congested downtown areas, greatly alleviating traffic congestion, delays, greenhouse gas emissions and other negative environmental impacts. The Linear Loading Dock and Conveyor System may have other useful applications, for example to access a facility, building or vehicle, or in other circumstances where off street truck parking or loading docks are not available.

The invention provides a square wave generation and multipath output device, a system and a method. The device comprises a power supply, a photoelectric encoder, a distribution signal board, an analogsignal board, a photoelectric module, and a signal change-over switch. The analog signal board and the photoelectric encoder are connected with the distribution signal board through the signal change-over switch, and the photoelectric module is connected with the distribution signal board; the device is connected with an external device through an optical fiber to avoid signal interference; the transmission distance of the same signal can be increased through optical fiber networking and port expansion of each device, the stability is good, and no interference exists; signal switching switch,the analog signal board outputs an analog square wave signal during parking, and the photoelectric encoder outputs an actual square wave signal during vehicle driving, thereby achieving the generation and multipath output of square wave signals in various states of a detection vehicle, improving the work efficiency of railway infrastructure detection, and providing a guarantee for the railway operation safety detection.