36results about How to "Improve traffic quality" patented technology

A rotary turbomachine, and particularly a turbojet engine, has a compressor stage that is especially adapted for operation in the transonic region. The compressor stage includes a rotor (1) having a hub (2) and a plurality of compressor blades (3) extending radially therefrom, and a stator having a plurality of compressor blades extending radially between a stator hub and a housing. The hub (2) of the rotor (1), and / or the hub of the stator, and / or the housing of the stator, have a circumferential surface contour that is not continuously rotationally symmetrical. Namely, a concave contour (K) is provided in the circumferential surface of the hub near the base of each blade (3) on the pressure side (PS) thereof, while the circumferential surface on the suction side (SS) of the base of each blade has a contour that is linear, slightly convex, convex / concave, or slightly concave to a lesser degree than the concave contour (K) on the pressure side of each blade. The hub contour slopes and transitions smoothly radially outwardly from the concave contour (K) on the pressure side to the flatter or convex contour on the suction side. In this manner, fluid flow velocities on both the pressure side and the suction side of each blade are reduced, especially under transonic operating conditions, and compression shock losses can be minimized.

A method for designing gas turbine engine components using a coupled parametric analysis of part geometry and flow control is disclosed. Included are the steps of parametrically defining the geometry of the duct wall shape, parametrically defining one or more flow control actuators in the duct wall, measuring a plurality of performance parameters or metrics (e.g., flow characteristics) of the duct and comparing the results of the measurement with desired or target parameters, and selecting the optimal duct geometry and flow control for at least a portion of the duct, the selection process including evaluating the plurality of performance metrics in a pareto analysis. The use of this method in the design of inter-turbine transition ducts, serpentine ducts, inlets, diffusers, and similar components provides a design which reduces pressure losses and flow profile distortions.

The invention provides a sequencing method and a device of search results, wherein the method comprises the steps of: obtaining an inquiry word and user information; searching commodity information corresponding to the inquiry word, and obtaining a class heading with highest requirement degree and corresponding to the user information and the inquiry word according to the corresponding relation of the obtained user information, the inquiry word and the class heading with highest requirement degree; and sequencing the commodity information according to the class heading with highest requirement degree. The method and device provided by the invention have the advantages of improving the flow rate quality of an online transaction system and improving the click rate. Besides, the sequencing of search results can indicate the individual demands of users to avoid the users from sending a large amount of useless inquiry requests to a server by a client so as to relieve the working pressure of the server and improve the response speed of the server.

The invention discloses a CBD (central business district) signalized intersection pedestrian crossing traffic behavior supervision system. The system disclosed by the invention starts from the red light running psychology of pedestrians, aims to ensure the pedestrian crossing safety, adopts a thought of combining facility guidance and regulation breaking punishment, and develops the CBD signalized intersection pedestrian crossing traffic behavior supervision system which is formed by an intersection pedestrian supervision monitoring device and a background control center monitoring management platform. The system integrates supervision, detection, evidence collection, alarming, statistics and face recognition, realizes functions of signalized intersection pedestrian red light running supervision, regulation breaking record statistics, system equipment maintenance, real-time monitoring management and the like, and can provide partial basic data for improving and designing an intersection. A more importance value lies in that the system carries out supervision and persuasion on pedestrian behaviors, evidence collection can be performed effectively, and punishment is carried out by being matched with relevant laws, thereby being capable of gradually reducing red light running behaviors of the pedestrians, significantly improving the traffic order of a CBD signalized intersection, and reducing occurrence of traffic safety accidents.

The invention discloses an intelligent traffic signal light control system, which comprises a ground sense line, a PLC controller, a computer processing system and a signal light. The ground sense line and the signal light are respectively connected to a PLC controller, and the PLC controller is connected to a computer processing system. The line is used to detect the traffic flow information, and the PLC controller is used to obtain the detected traffic flow information from the ground sense line and send the traffic flow information to the computer processing system. The signal lamp sends a control signal, and the signal lamp performs signal display according to the control signal. The invention automatically adjusts the time according to the traffic flow, so that the time in the direction with fewer or no vehicles is automatically shortened, and the time in the direction with more vehicles is automatically changed to effectively relieve the traffic pressure in the city, reduce traffic accidents, save a lot of travel time for the people, and create Bring out more social value.

A vehicle passing intelligent management system based on Bluetooth technology belongs to the technical fields of wireless communication, computer network and electron; a gate inhibition base station of the intelligent management system is connected with a car-mounted terminal in a wireless way, and one gate inhibition base station can be loaded with a plurality of car-mounted terminals; a P3.0 port and a P3.1 port of a microprocessor are respectively connected with a UART-RX terminal and a URAT-TX terminal of a car-mounted Bluetooth transceiving module; a key control circuit, a data display circuit, a buzzer are connected with an I / O port of the microprocessor for simulating serial communication; a P3.2 port of the microprocessor controls an enable terminal of the data display circuit; an opening / closing hardware system of gate inhibition and a traffic lane indicating lamp control system are both controlled by a controller of a base station center, and the traffic lane indicating lamp control system is connected with the controller of the base station center by an embedded Bluetooth technology in a wireless way. The system can lead vehicles to come in and go out without a stop based on identification, so as to avoid vehicle congestion and ensure the passing quality to be high. The intelligent management system can automatically search, distinguish and complete the whole communication and pass process and is closely combined with an information / property management system, so that the system and the management have low cost and the anti-counterfeiting function, and are safe and reliable.

A device for determining at least one parameter of a medium flowing in a line in a main flow direction includes a part adapted for introduction into the line. The part may include a measuring element for determining the at least one parameter; a measuring channel that may include an inlet, an outlet, a bent first section between the inlet and the measuring element, and a second section into which the first section may transition, the measuring element being located in the second section; and a projection, where a partial stream of the medium may flow in a measuring channel flow direction from the inlet to the outlet, the first section may redirect the partial stream after entering the measuring channel, and the projection may project into the measuring channel at a location downstream from the inlet and upstream from the measuring element relative to the measuring channel flow direction to direct the flow of the partial stream, and counteract a separation of the flow of the partial stream from channel walls of the measuring channel.

A method for designing gas turbine engine components using a coupled parametric analysis of part geometry and flow control is disclosed. Included are the steps of parametrically defining the geometry of the duct wall shape, parametrically defining one or more flow control actuators in the duct wall, measuring a plurality of performance parameters or metrics (e.g., flow characteristics) of the duct and comparing the results of the measurement with desired or target parameters, and selecting the optimal duct geometry and flow control for at least a portion of the duct, the selection process including evaluating the plurality of performance metrics in a pareto analysis. The use of this method in the design of inter-turbine transition ducts, serpentine ducts, inlets, diffusers, and similar components provides a design which reduces pressure losses and flow profile distortions.

The invention discloses a QoE-based traffic scheduling big data system and method. The system comprises an infrared sensor, a crossing camera terminal device, a data transmission network, a big data processing core platform, a traffic control center and a traffic signal terminal. Data is acquired through the infrared sensor and the crossing camera terminal device, then the data is transmitted to the big data processing core platform through the data transmission network, a background gives an optimized solution scheme, then the traffic control center executes the scheme, and thus real-time scheduling of the traffic signal terminal is realized. Through the QoE-based traffic scheduling big data system and method, traffic data of each area of a city is monitored in real time, the big data processing core platform performs analyzing processing and data mining, the data of different areas, different roads, different time periods, different motor vehicles, pedestrians and the like are taken into integrated consideration, the optimized scheduling scheme is calculated, through real-time control, area coordination, stereo scheduling, intelligent recommendation and the like of traffic signals, the road pass rate and the area coordination capability are improved, congestion is mitigated, and the area scheduling quality and the QoE are improved.

The invention discloses an asphalt pavement cooling device, which comprises two main parts, i.e. an evaporation pipe section and a condensation pipe section. The condensation pipe section includes a condensation pipe outer pipe and a condensation pipe inner pipe, and the evaporation pipe section includes an evaporation pipe main pipe and evaporation pipe branch pipes. When the pavement temperature is higher than the air temperature, a working medium filling the device undergoes gas-liquid circulation spontaneously so as to dissipate the pavement heat into the air and reduce asphalt pavement rutting, flushing, translation and other diseases caused by temperature rise. Single condensation pipe is connected to a plurality of evaporation pipes, the cooling area of single condensation pipe is increased, and the cooling efficiency is greatly improved. Also, the condensation pipe can be combined with street lamps, advertising boards and other road affiliated facilities into a whole, thus having no influence to the appearance.

The invention discloses a multi-level differential prevention and control method for the operation safety of a bridge. The method comprises the following steps that: the operation risk level of a to-be-detected bridge is determined; when the operation risk level is A, the prevention and control facilities are traditional traffic safety facilities; when the operation risk level is B level, the prevention and control facilities are traditional traffic safety facilities, a risk early warning system I and a risk disposal system I; when the operation risk level is C, the prevention and control facilities are traditional traffic safety facilities, risk early warning system II, a dynamic speed limiting system and a risk disposal system II; and when the operation risk level is D, the prevention and control facilities are traditional traffic safety facilities, a risk early warning system III, a dynamic speed limiting system and a risk disposal system III. The system can effectively assist a driver, enables a vehicle to safely and smoothly pass through a bridge, improves the traffic quality, improves the traffic service level, and provides a certain technical guarantee for the operation safety of the bridge.

The invention discloses a community safety protection-based express distribution system. The system comprises an information obtaining module used for obtaining recipient information of a parcel, an information comparison module used for comparing the recipient information of the parcel with preset community resident information and releasing a courier when the recipient information of the parcelis matched with the preset community resident information, and a route planning module used for planning a parcel delivery route according to the recipient information and a real-time position of thecourier after release of the courier and displaying the parcel delivery route to the courier. Therefore, the frequent registration and check time of the courier is shortened; the traffic quality of acommunity gate is improved; the delivery efficiency of the courier is improved; the safety quality of a community is improved; and the experience of community residents is enhanced.

The invention provides a smart city traffic signal lamp control system and a control method thereof, and the system comprises an acquisition module and a traffic signal lamp time control module. The method comprises the following steps: collecting vehicle data and monitoring data, and controlling the time change of traffic lights based on the monitoring data or the vehicle data; wherein the vehicle data comprises the traffic flow length of waiting for traffic lights and the vehicle driving direction, and the monitoring data comprises the current time and the current traffic intersection brightness; the system can reasonably adjust the display time of different signals of the traffic signal lamp according to the traffic condition of the current traffic intersection, improves the command efficiency of the traffic signal lamp at the traffic intersection, prevents the traffic intersection from being jammed, and improves the urban traffic quality.

The invention relates to an integrated low-pulsation seawater desalination energy recovery and pressurization device. A structure type of a rotary pressure exchanger and a swash plate plunger type booster pump is adopted; the low-pressure area of a fresh seawater valve plate has an open design; a pressure exchanger cylinder hole directly sucks water from a cavity of a device shell during operation, so that the suction performance is improved; the inlet of the booster pump is equipped with high-pressure water, so that the self-suction performance is improved; the flow pulsation of a high-pressure seawater outlet is reduced through water suction and drainage of a plurality of plungers, the flow quality of an energy recovery supercharging device is improved, the impact of the outlet flow pulsation of the device outlet on a reverse osmosis membrane is reduced, and the service life of the reverse osmosis membrane is improved. The device provided by the invention overcomes the defects of lowintegration degree, large flow pulsation, large volume weight and the like of a rotary energy recovery device in the prior reverse osmosis seawater desalination system, and has the obvious technicaladvantages of high energy recovery rate, high flow quality, high integration degree, small structure size and the like.

The invention provides a road segment dynamic fee collecting control method guaranteeing lane quality. The method comprises the steps of: acquiring a road traffic saturation degree of a fee collectingroad segment in real time by using a traffic flow detection apparatus; when the detected road traffic saturation degree is less than a set threshold, collecting a road using fee x0, wherein x0 changes dynamically according to a road using fee regulation factor beta 0; when the detected road traffic saturation degree is greater than the set threshold, determining that the lane quality of the roadsegment reduces and adding a road quality regulation fee x1 on the basis of collecting the road using fee of the road segment, wherein the regulation fee is determined by the road traffic saturation degree which is detected in real time and a road quality fee collecting regulation factor beta 1; defining a fee collecting price update state period as T. The quality fee collecting price of a road segment dynamically changes with the traffic state of the road segment, so that dynamic and reasonable fee collecting control for road segments is realized and traffic quality of lanes of road segmentscan be guaranteed.

The present invention relates to bridge and highway, and is especially fulcrum of bridge pier. One transition board is set between bridge and road, and the transition board has one end set on the pier of bridge and the other end set on the pier of road. In case that the bridge and the road are not level, the transition board will absorb the height difference. Or, each of the pier has one end board is set. When the bridge and the transition board are not level, the end board connected to the pier of the bridge is regulated, and when the road and the transition board are not level, the end board connected to the pier of the road is regulated, so as to ensure the leveling between the road and the bridge.

The invention discloses a feature recognition based community vehicle entering / exiting management method. The method comprises the following steps: presetting logistic vehicle model information and logistic vehicle mark information in a vehicle database; collecting the vehicle model information of a to-be-detected vehicle; comparing the vehicle model information of the to-be-detected vehicle with the logistic vehicle model information in the vehicle database and judging if the to-be-detected vehicle is the logistic vehicle model according to a comparison result; if the to-be-detected vehicle is the logistic vehicle model, collecting the mark information of the to-be-detected vehicle; comparing the mark information of the to-be-detected vehicle with the logistic vehicle mark information in the vehicle database and judging if the to-be-detected vehicle is the logistic vehicle according to the comparison result; and if the to-be-detected vehicle is the logistic vehicle, allowing the to-be-detected vehicle to pass.

The invention discloses an express address-based community safety protection method. The method comprises the following steps of: obtaining receiver information of a package; comparing the receiver information of the package with preset community resident information, and discharging a courier according to the comparison result; and after discharging the courier, planning a package sending path according to the receiver information and a real-time position of the courier, and displaying the package sending path to the courier. According to the method, the time, for frequent registration and verification, of the couriers is decreased, the traffic quality at community gates is improved, the sending efficiency of the couriers is improved, the community safety quality is improved and the experience of the community residents is increased.

Systems and methods for enhancing quality of a flow image of a sample of a subject are provided. The method comprises acquiring a first flow image from a plurality of first OMAG scans of the sample, and acquiring a structure image from a second OMAG scan of the sample. Data based on pixel intensity values from the flow image and pixel intensity values from the structure image are then plotted onto a graph and from the graph, may be differentiated into a first data group representing static structure signals and a second data group representing flow signals. The method then includes suppressing pixels in the flow image corresponding to the first data group. The flow signal may also be multiplied by a weighting factor to suppress artifacts in the image.

The invention provides a device which has simple design, is convenient to mount and can effectively lessen the hooting noise of a motor vehicle. The invention adopts the following technical scheme: a delay controller is additionally mounted in a horn control circuit of the motor vehicle, and a real-time speed value of a speedmeter sensor of the motor vehicle is input into the delay controller. The invention has the advantages that unnecessary hooting noise can be greatly lessened under the condition of a traffic jam in the city center, or during the rush hour of commuting traffic, lowers the noise pollution and purifies the environment.

The invention discloses a novel pavement slab. The novel pavement slab comprises a group of sub pavement slabs sequentially hinged, wherein each sub pavement slab comprises a group of basic pavement units which are spliced; each pavement unit is a rectangle which consists of seven or ten pavement blocks which are spliced through male threads and female grooves; the hexagonal and trapezoidal pavement blocks are clamped and connected mutually to form one rectangular basic pavement unit, and then the basic pavement units are interconnected to form one sub pavement slab; finally, the sub pavement slabs are hinged to form the pavement slab disclosed by the invention; each of the basic pavement units adopts a cellular structure, is high in stability, and limits the degree of freedom between the pavement blocks, so that lateral and longitudinal connection rigidity is strengthened. Loads generated when vehicles run on the pavement slabs are dispersed, and the pavement slabs cannot be sunken, so that the running quality of the vehicles can be guaranteed; antislip strips can improve the carrying capacity, the skidproof capacity and the abrasion-resistant capacity of the pavement slab; when the vehicles run on the pavement slabs, the reinforcing ribs are embedded into soil, so that the skidproof effect can be achieved, and the running capacity of the vehicles is also improved.

The present invention discloses a light-emitting control method of a traffic light device with a good display effect. Signal light modules are arranged at four side walls of the traffic light device to facilitate utilizing the traffic light device in a crossroad, each arrowhead on each signal light module has the corresponding second indication light, so that drivers can conveniently understand the condition that the arrow light is going to perform conversion and the related time to facilitate getting ready to grasp time to pass or stop the pass to perform relax and rest; and moreover, the traffic light device does not need the transition display of the yellow signal light so as to avoid the waste of the transition time of the yellow signal light and facilitate improving the pass quality and solving the traffic jam.

The invention discloses a big-data-based control system for a logistic vehicle entering and exiting from a community, and the system comprises a vehicle type information obtaining module used to obtain the vehicle type of the vehicle that enters and exits from the gate of a community; a vehicle type information comparing module used to compare the vehicle type that enters and exists from the community with the preset logistic vehicle types in a big database and determining whether the entering or exiting vehicle belongs to the logistic vehicle type; an identification information acquiring module used to acquire the identification information of the entering or exiting vehicle when the entering or exiting vehicle is determined to belong to the logistic vehicle type; an identification information comparing module used to compare the identification information of the entering or exiting vehicle with the preset logistic vehicle information in a big database and determining whether the entering or exiting vehicle belongs to a logistic vehicle or not; and a control and pass allowing module used to let the entering or exiting vehicle pass when the vehicle is determined to be a logistic vehicle.

A cableway bridge deck slab with excellent passing performance and endurance is made of reinforced concrete material; the lower portion of a seam between two adjacent bridge deck slabs is glued with a wood joint filling plate with anticorrosion treatment, and the upper portion is provided with a specific seam structure formed by reeling an upper zinc iron sheet and a lower zinc iron sheet; the bridge deck slab and bridge deck cables are connected through pre-buried lag bolts; the top surface of the bridge deck slab and top surface of the seam structure are paved by bridge deck pavement layers: a JBS fiber enhanced bridge deck waterproof layer and an asphaltic sand abrasion layer; two ends of an end floor beam of the bridge deck slab and the slab center zone are provided with holes, the center hole area is covered by the zinc iron sheet, and the top surface of the zinc iron sheet is painted with traffic guide signs; the bridge deck slab thickness is arranged according to the minimum construction thickness value requested by bridge specifications, thus reducing member hoist weight, and facilitating field assembling construction.

The invention provides a wireless digital repeater station with the carrier scheduling function and a method for realizing carrier scheduling. The method is characterized in that when the traffic statistics result reported by the wireless digital repeater station exceeds the set range of a base station, the wireless digital repeater station identifies an adjacent wireless digital repeater station satisfying the requirement of carrier scheduling through information interaction with a network control center and sends a command of starting carrier scheduling to the adjacent wireless digital repeater station; the two wireless digital repeater stations simultaneously start a relay and forward system and establish the relation between relay and forward; and the traffic exceeding the load of the wireless digital repeater station sending the command of carrier scheduling is scheduled to the relay channel of the adjacent wireless digital repeater station through the relay channel of the wireless digital repeater station sending the command of carrier scheduling and then is scheduled to a covering system of the base station corresponding to the wireless digital repeater station sending the command of carrier scheduling by frequency selecting and frequency shift, thereby establishing traffic relation and completing carrier scheduling. The invention can not only make full use of the resources of the repeater station and lower the cost, but also effectively improve the traffic quality.

A cableway bridge deck slab with excellent passing performance and endurance is made of reinforced concrete material; the lower portion of a seam between two adjacent bridge deck slabs is glued with a wood joint filling plate with anticorrosion treatment, and the upper portion is provided with a specific seam structure formed by reeling an upper zinc iron sheet and a lower zinc iron sheet; the bridge deck slab and bridge deck cables are connected through pre-buried lag bolts; the top surface of the bridge deck slab and top surface of the seam structure are paved by bridge deck pavement layers: a JBS fiber enhanced bridge deck waterproof layer and an asphaltic sand abrasion layer; two ends of an end floor beam of the bridge deck slab and the slab center zone are provided with holes, the center hole area is covered by the zinc iron sheet, and the top surface of the zinc iron sheet is painted with traffic guide signs; the bridge deck slab thickness is arranged according to the minimum construction thickness value requested by bridge specifications, thus reducing member hoist weight, and facilitating field assembling construction.

The invention discloses a traffic guidance method based on a traffic information center information processing technology, and relates to the field of traffic information processing. According to theinvention, a video detection system transmits the video information to a traffic information center through a video transmission device, the traffic information center sends the video information to an information processing system for data analysis, and then a central control system transmits the video information to a large-screen display system, and a real-time positioning system sends the monitored congestion information to the traffic information center, the traffic information center analyzes the congestion information through the information processing system and provides at least one command scheme to the central control system, and the central control system transmits the command scheme to a vehicle terminal system. According to the invention, through the traffic data processing and the vehicle tracking and monitoring, a route plan for reasonably avoiding a congested road section is formulated, and the traffic congestion condition is relieved.

The invention provides an urban physical examination data analysis method and system based on an intelligent traffic integrated data warehouse, and the method comprises the steps: S1, obtaining a target data type, screening data in the intelligent traffic integrated data warehouse according to the target data type, and obtaining a plurality of pieces of target data conforming to the target data type; s2, processing a plurality of target data to obtain a target data analysis curve graph; s3, acquiring a comparison standard curve graph, and performing comparison analysis on the target data analysis curve graph according to the comparison standard curve graph to generate a quality degree curve graph; and S4, integrating the advantage and disadvantage degree curve graphs corresponding to all the target data types to generate an urban traffic physical examination report.