192 results about "Rapid transit" patented technology

The invention discloses a man-machine cooperation device and method based on a Kinect video camera. The man-machine cooperation device and method based on the Kinect video camera is mainly based on a Kinect video camera which is launched by the Microsoft Corporation recently so as to achieve detecting and tracking of a human body target. The man-machine cooperation device and method based on the Kinect video camera can accurately judge the position of a target object and the intention of a tester by utilizing Kinect human skeleton detecting technology, and therefore the risks which occur in the process of handover are avoided. Besides, a rail rapid transit (RRT) algorithm based on working space is provided to achieve route planning. Through repeated experimental verification, the system can conduct interpersonal handover safely.

The invention discloses a collaborative flight path intelligent planning method for formation flying of unmanned planes under a dynamic environment. The method comprises the steps of offline intelligent planning of a formation pre-flying collaborative flight path of the unmanned planes, online replanning of the flight path for avoiding threats, collaborative rebuilding of a formation team and the like. The offline intelligent planning of the formation pre-flying collaborative flight path of the unmanned planes adopts an intelligent planning method based on a Voronoi graph and an ant colony algorithm, and an integrated optimal pre-flying flight path with collaborative time can be planned off line for the unmanned plane. The replanning of the online flight path adopts an intelligent flight path planning method based on an RRT (Rail Rapid Transit) algorithm, and quick flight path correction can be provided when the unmanned plane formation meets a sudden threat. The collaborative rebuilding of the formation team adopts a method combining unmanned plane formation member flying speed adjustment and coiling maneuvering. According to the method, pre-flying collaborative flight path offline planning and generation of online replanned flight path are provided for the unmanned plane formation, a collaborative rebuilding scheme is provided, and the online rebuilding problem of unmanned plane formation flying cooperativity is solved.

The invention discloses a construction method in the railway field, in particular relates to a construction method of a large-span tunnel passing through a rapid transit railway with a shallow tunneling process. The construction method comprises the following construction steps of: 1, advance supporting and pre-reinforcing; 2, partial excavation and millisecond blasting; and 3, short-bench excavation support construction. In a construction process, grouting technologies such as curtain grouting, full-section grouting, radial grouting and the like are used for blocking an underground water seepage channel to control the loss of underground water; and in the construction process, an automatic high-precision monitoring method and a fixed target high-precision monitoring method are adopted for carrying out monitoring to ensure that the influence of tunnel passing-through construction on rapid transit railway tracks on the ground surface is immediately found. By using the construction method, the safety of the tracks can be ensured when a newly-built railway passes through ballastless tracks.

The invention relates to the field of precise engineering survey, in particular to a method for rapidly measuring a foundation pile control net (CPIII) of a rapid transit railway on the basis of movable laser radar measuring technology and high-speed digital imaging technology. control net (CPIII) measurement data is obtained by using a movable high-precision measurement system comprising a laser scanner (1), a GPS/IMU positioning and orientating system (2), a high-speed digital imaging system (3), an industrial computer (4) and a power supply device (5); and united weighted adjustment is carried out on advanced net data, united measured data and auxiliary measurement points extracted from images to obtain high-precision control net (CPIII) control point coordinates. The invention can greatly shorten the measurement time of the control net (CPIII), overcomes the defect of little total correlation of discrete single-point measurement, carries out integral adjustment on all control points, has good closing property and high relative precision, obtains plane and elevation coordinates of all control points, and greatly simplifies the measurement work of the control net (CPIII).

High-strength, chemically and thermally stable, closed-cell foams, useful as structural core materials in sandwich composites. The core materials of the invention display anisotropic properties. The core materials of the invention are amenable to vacuum-mediated resin bonding to composite skins to provide lightweight, high-strength structural sandwiches suitable for use in a variety of applications, such as marine applications, construction, aviation, rapid transit, and recreational vehicles.

A device and process for cleaning electrical insulators mounted under an electrified contact rail parallel to a rail track comprises positioning arm(s) attached to a vehicle that travels on the track and a cleaning station with fixed or moveable fingers. The fingers have attached cleaning tools and engage, operate on, partly rotate around the circumference of the insulator, and disengage, as the vehicle passes by the insulator. The cleaning station can also ride on the contact rail and have moveable vertical members with cleaning tools attached to L-shaped tool holders that rotate around a portion of the circumference of the insulator. Cleaning tools include powered rotating, reciprocating, vibrating, oscillating and/or linear brushes, wrap-around cleaning belts, sonic horns, ultrasonic vibrating guns, lasers, pressure washing and/or water jetting nozzles on stationary, rotating or oscillating spray bars and spinning heads using steam, tap or deionized water, and pneumatic polishing nozzles.

The invention discloses a self-compacting concrete for rapid transit railway III-type plate ballastless tracks and a preparation method of the self-compacting concrete. The self-compacting concrete can effectively eliminate bleeding in a pouring process, has low contractibility rate and good durability, and is beneficial to improving of pavement quality of track plates and prolonging of service life of the ballastless tracks. The self-compacting concrete is prepared by stirring and mixing cement, sand, stone, an expanding agent, a water reducing agent, a shrinkage reducing agent, a thickening agent, a water reducing agent, a collapse preventing agent and water as raw materials, wherein the raw materials comprise the following components in parts by weight: 100 parts of common silicate 425# cement, 11 parts of an expanding agent, 38.5 parts of coal ash, 20.5 parts of mineral powder, 261-277 parts of sand with fineness modulus of 2.4-2.8, 235-251 parts of stone with a grain size of 5-10mm, 0.04 part of a thickening agent, 56-60 parts of water, 1.3 parts of a shrinkage reducing agent, 2.3 parts of a water reducing agent and 0.37 part of a collapse preventing agent.

The invention discloses a device for monitoring a state of a ballastless track structure through fibber bragg grating sensing, which comprises M fibber bragg grating steel rail temperature and stress combined sensors, N fibber bragg grating steel rail horizontal displacement, longitudinal displacement and vertical displacement combined sensors, P fibber bragg grating steel rail horizontal acceleration, longitudinal acceleration and vertical acceleration combined sensors, Q fibber bragg grating plate type ballast horizontal displacement, longitudinal displacement and vertical displacement combined sensors, R fibber bragg grating plate type ballast horizontal acceleration, longitudinal acceleration and vertical acceleration combined sensors, a multi-channel fibber bragg grating wavelength demodulator, a data processing terminal and an alarm device. The combined sensors are arranged at state monitoring points of the ballastless track structure of a rapid transit railway, and are directly contacted with the steel rail, the ballast and a base or are fixed by a supporting layer, wavelength output signals of various sensors are respectively transmitted to the demodulator through a transmission fiber and then are transmitted to the real-time data processing terminal and the alarm device, and if an abnormal state is monitored, the alarm device is started for early warning.

The invention discloses a method for deploying strong wind monitoring points on a rapid transit railway, comprising the following steps: analyzing the gale distribution characteristics and carrying out statistics on the wind speed frequency distribution under each wind direction based on the information of wind speeds, wind directions and the like of weather stations along and around the rapid transit railway line, and deploying basic monitoring points; establishing the correlationship of winds fields between any two monitoring points along the railway line under complicated terrains based on the geographic and geomorphic information, simulating the wind fields along the rapid transit railway line by adopting the computational fluid dynamics (CFD) method theory and method, and deploying interpolated monitoring points; and simulating the wind fields of special road sections, and deploying special monitoring points by combining with wind tunnel tests. The method provided by the invention overcomes the defects of high cost, strong subjectivity, low accuracy and the like in the traditional method which gives priority to field survey and qualitative analysis, realizes deployment of strong wind monitoring points in rapid transit railways under various weather types and environmental conditions, has high simulation accuracy and low monitoring point deploying cost, and provides support for effective monitoring and safety running of rapid transit railways.

This invention provides a vehicle powered by a surface-mediated cell (SMC)-based power source, comprising a vehicle frame, at least a wheel supporting the frame or a propeller connected to the frame, a drive unit connected to the wheel or propeller, and a power source electrically connected to the drive unit, wherein the power source contains at least a surface-mediated cell. The vehicle can be a micro-EV (using the SMC for the stop-start function), HEV, plug-in HEV, all-electric vehicle, power-assisted bicycle, scooter, motorcycle, tricycle, automobile, wheelchair, fork lift, golf cart, specialty vehicle, bus, truck, train, rapid-transit vehicle, boat, or air vehicle. The ultra-high power density enables the SMC to provide pulsed power or increased current demands when the vehicle is accelerating or hill-climbing. The SMC also enables the power source to recuperate the braking energy when the vehicle decelerates, brakes, or simply moves down-hill.

The invention provides a secure computer platform used for a rail transit. The secure computer platform used for the rail transit comprises a first host device, at least one second host device, a first communication transfer device, at least one second communication transfer device, a first input/ output device, at least one second input/ output device, an Ethernet and a FlexRay bus, wherein the first input/ output device, the second input/ output device, the first network connection end of the first communication transfer device and the third network connection end of the second communication transfer device are connected with the FlexRay bus, the second network connection end of the first communication transfer device and the fourth network connection end of the second communication transfer device are connected with the Ethernet, the first host device and the first input/ output device are communicated through the Ethernet, and the second host device and the second input/ output device are communicated through the Ethernet.

The invention discloses a construction method of BIM (Building Information Modeling)-based cross-high-speed bridge construction traffic control. The construction method comprises the following steps: establishing a bridge and site BIM model, selecting Navisworks as a model integration platform, splitting a bridge model according to construction working procedures to guarantee that the model is matched with site practicality, then, causing one code to correspond to each model, knowing the construction position and the construction date of each component through the codes of the working procedures, automatically matching the model with a plan through the codes of the working procedures, generating construction simulation, visually reflecting the whole constriction process through the construction simulation, and simulating connection between every two working procedures through a time axis so as to optimize a cross-rapid-transit control construction scheme. The construction method has the advantages that a reasonable cross-high-speed bridge construction traffic control scheme is formulated through simulation analysis and optimization on the basis of the characteristics of visualization and simulation of the BIM three-dimensional model, construction efficiency is improved, and construction cost is lowered.

The invention discloses a self-adoption precoding method for a multi-input multi-output (MIMO) system in a rapid transit railway environment. The method is characterized in that long-time precoding operation is performed at a base station end; the main lobe of an antenna aims at the incoming wave of a user; after the long-time precoding operation is performed, the relevance of channels from a base station to a vehicle-mounted station is removed; short-time precoding operation is executed on non-relevant channels; after being subjected to the short-time and long-time precoding operations, two paths of data streams are superposed to form transmitting signals, and the transmitting signals are sent by a port of the antenna; the transmitting signals are blocked by scatterer blocks artificiallyarranged near the base station to form scattering and arrive at the vehicle-mounted station by multiple paths; a vehicle-mounted station end uses pilot frequency to synchronously estimate effective channels; according to the effective channels, the vehicle-mounted station end obtains a minimum mean squared error equalizer by calculation; and the vehicle-mounted station detects the two paths of data stream with the minimum mean squared error equalizer. The method can eliminate the interference among the data streams in the MIMO system in the rapid transit railway environment, thus improving the performances of mobile communication systems in rapid transit railways.

The invention discloses a bus rapid transit-oriented priority signal control system and a method thereof. The system comprises a central management platform used for remote management and maintenance of the whole system and the real-time monitoring of the bus rapid transit operation; a priority signal controller which is used for receiving arrival information of a bus in the bus rapid transit, outputting a priority signal which is analyzed and processed by corresponding priority algorithms to a signal, and outputting the processed related information to the central management platform; a vehicle identification device which is used for acquiring the arrival information and vehicle ID information of the bus in the bus rapid transit, and outputting the information to the priority signal controller; and the signal which is used for responding to a request of the priority signal according to the currently operating phase to cause the bus in the rapid transit to rapidly pass through a road junction. The system and the method have the beneficial effects of strong management, control and statistical capability, can improve the efficiency of processing the bus priority signal, and ensure punctuality of the bus rapid transit.

The invention discloses a bus chassis articulated system for a urban bus rapid transit system and a working method thereof. The bus chassis articulated system consists of a turntable device, a hydraulic system and a system control unit ECU, wherein the turntable device comprises a turntable connected between a front turntable frame and a rear turntable frame; the central position of the turntable is movably connected with a mandril positioned in a vertical center line of the turntable; the upper free end of the mandril is connected with an articulated angle sensor; the hydraulic system comprises a left hydraulic cylinder, a right hydraulic cylinder, a hydraulic integrated block, a hydraulic pump and an oil tank which are arranged on the rear turntable frame and rotate together with the rear turntable frame; hydraulic arms of the left and right hydraulic cylinders are respectively sleeved with a cylindrical helical compression spring; front and rear cavities of the left and right hydraulic cylinders are in crossed connection and oil ways are communicated through the hydraulic integrated block; and the system control unit ECU comprises a microprocessor CPU. The bus chassis articulated system provides a larger torque during large-angle turning, realizes the self-locking function on the maximum articulated angle, and prevents a second axle from laterally sliding and front and rear bus bodies from shearing.

The invention discloses a rapid transit railway soft rock-improved soil roadbed structure comprising a road embankment formed by a foundation bed surface layer, a foundation bed surface layer and a roadbed body. The side slopes of both sides of the road embankment are provided with side slope protection layers; a water-resisting layer is arranged between the roadbed body and a foundation bed bottom layer; the bottom surface of the roadbed body is also provided with a water-resisting layer; the water-resisting layer comprises a compound geomembrane and medium coarse sand layers which are arranged above and below the compound geomembrane; each medium coarse sand layer is 4-6cm thick; and the fine grain content in the medium coarse sand layers is less than 5 percent. The rapid transit railway soft rock-improved soil roadbed structure has comprehensive waterproof and drainage measures, good effect and stable overall settlement and can meet the requirements for the post-construction settlement and the long-time stability of the rapid transit railway roadbed.

The invention relates to a moveable isolating door for vacuum pipeline (vacuum tunnel) rapid transit under vacuum environment, belonging to the technical field of vacuum environment boundary construction of the vacuum pipeline transit. The moveable isolating door of the invention is mainly used for an air brake station of a vacuum pipeline transit system, an annular channel provided with a door chamber is arranged on the sealing surface of the isolating door of the air brake station, a moveable door groove is also arranged on the isolating door, and a moveable track is installed on the bottomof the moveable door groove and is matched with a roller wheel of the moveable door to be used. When a seal door or the moveable isolating door moves into the door chamber, the isolating door of the air brake station is opened or is closed vice versa. The moveable door of the invention can be used as the isolating door of the air brake station of a vacuum pipeline transmission system and can alsobe used for the sectional isolation of a main pipeline route of the vacuum pipeline transit as well as for other positions which need to be isolated from the vacuum environment.

The invention aims to provide a bus rapid transit system with high operating efficiency and carrying capacity. The system comprises vehicles, stations and roads, wherein the vehicles are modified common buses and double-body buses with ultrahigh passenger capacity; the stations are waiting stations in which station dispatching rooms are arranged; the roads are novel bus lanes and passenger boarding-disembarking passages; and an isolation belt is arranged in the middle of a two-way road, lanes on the two sides of the isolation belt are set as bus rapid transit lanes, the isolation belt opposite to the station is set as a boarding platform or a disembarking platform which is connected with the two sides of a crossing passage (underpass or overpass) through a boarding passage or a disembarking passage respectively, so that passengers are shunted through the boarding platform or the disembarking platform and get in and out of the carriage of the bus in one direction.

The invention discloses a processing method and a device for group switch. The method comprises the following steps: before switching, grouping users in a cell; setting different switching conditions for the users in different groups; and according to the set switching conditions, and switching the users in the different groups in different periods. In the invention, the problems of large group switching amount and frequent group switching of rapid transit railway communication in the prior art can be saved, the purposes of reducing group switch pressure and the possibility of simultaneously switching are realized, and the communication quality and the stability of the system are improved.

The invention relates to a permanent-magnet-shaft-type direct-drive air-ground shared stereoscopic rail rapid transit system, in particular to a rail car and a stereoscopic rail traffic system of energy-saving permanent-magnet-shaft-type direct-drive supporting power wheels. The stereoscopic rail traffic system is composed of a rail system, the permanent-magnet-shaft-type direct-drive rail car, anelectromagnetic orienting and braking system, an unmanned air-ground shared car, a passenger traffic carriage and a system running cloud platform; the stereoscopic rail traffic system can run in theair or on the ground or in an underground tunnel or a mountain tunnel or at the two sides below a bridge; the unmanned air-ground shared car can run on the ground or in an aerial rail system. Throughadoption of the permanent-magnet-shaft-type driving rail car and an electromagnetic orienting and braking technique, the structure is simplified, the size and weight both are reduced by 50%, the energy is saved by 20-30%, the height and weight of the rail are decreased, charging can be achieved when the air-ground dual-purpose unmanned car runs on the rail, and an urban smart stereoscopic trafficsettlement scheme is provided.

The invention discloses a full-automatic accurate adjustment device for a track plate of a ballastless track of a rapid transit railway, comprising a plurality of adjusters, a console, a power distribution box and a frame, wherein the adjusters are used for adjusting accurate adjustment claws arranged on the track plate required to be accurately adjusted and located; the console is used for synchronously controlling and driving the adjustment direction and adjustment amount of the adjusters according to deviates; the power distribution box is connected with the console; the frame moves forward and backward; the adjuster and the console are arranged suspended on the moveable frame; and each adjuster comprises an altitude adjuster and a direction adjuster, wherein the altitude adjuster and the direction adjuster are respectively connected with the horizontal screw and vertical screw of the accurate adjustment claw through a connection joint sleeve and a double pressing screw. The device can be used for automatically adjusting and accurately locating the track plate instead of manual work under the guide of measurement frame data, thereby effectively improving the adjustment efficiency and location precision of the track plate. The device is simple in structure and is convenient to use and operate.