155results about How to "Increase traffic flow" patented technology

The invention provides a driving behavior safety evaluation method based on human-vehicle-environment multiple data sources and belongs to the field of automobile safety driving research in the aspectof road transportation application. The method comprises the steps that information data of a driver, driving data of a vehicle and environmental factor data are acquired as automobile driving sourcedata; according to the automobile driving source data, related factors which influence the driving safety are analyzed, and a driving risk evaluation index system is built; through statistical analysis, an evaluation value corresponding to an evaluation index is extracted in the source data, a driving risk score of a vehicle to be evaluated is calculated and obtained, and finally the driving behavior safety grade of the vehicle is determined. The driving behavior safety evaluation method has reliable evaluation results, can prevent dangerous driving behaviors, reduces traffic accidents and improves the traffic flow.

A computer implemented method, apparatus, and computer usable program code for controlling traffic. A set of vehicles is monitored moving from one radio frequency identification tag sensor to another radio frequency identification tag sensor in a network of radio frequency identification tag sensors to detect movement of the set of vehicles. A set of traffic patterns is identified in response to detecting the movement of the set of vehicles. A determination is made as to whether a traffic pattern in the set of traffic patterns is a delayed traffic pattern. In response to a determination that the traffic pattern in the set of traffic patterns is the delayed traffic pattern for a traffic control light at an intersection, the timing of the traffic control light is changed to increase traffic flow through the intersection.

The invention relates to an intelligent traffic control system for controlling traffic stream in intersection. The control system is composed of a traffic signal controller, a center computer, an Ethernet communication system, a traffic lamp in intersection, and related equipment. The traffic signal controller adopts a high-accuracy real-time clock chip for providing accurate clock signal and effectively improving the accuracy of time sequence of lamp color and simultaneously can display and set time and calendar information. The traffic signal controller has a vehicle inductive detection control interface for inputting real-time traffic stream information. The microprocessor of the signal controller system can an I / O port expanded by a programmable logic controller CPLD and is used for driving the traffic lamp after photoelectrical isolation and drive circuit so as to achieve reliable color output of traffic lamp. In the invention, the signal controller is directly connected with the Ethernet through the Ethernet controller, which can effectively improve the data transmission real-time performance and reliability. The monitor center analyzes and processes the traffic stream data according to the history traffic stream information as well as the real-time traffic stream information of each intersection, and generates an optimal control scheme by an intelligent optimization method, thereby achieving regional coordination control of urban traffic stream and maximally improving the traffic efficiency of the urban traffic stream.

A program may be used to increase traffic flow to a Web site by analyzing, optimizing and submitting the Web site to one or more search engines. The program may accept search phrases and check the compatibility of the Web site with the search phrases as well as check the textual content, the parseability and the spiderability of the Web site. In a preferred embodiment, the analysis mimics the ranking methodologies used by the search engines. The program assists the owner of the Web site in optimizing the Web site for the search engines, possibly by automatically editing the code of the Web site, and submits the Web site for registration with the selected search engines. The program may be repeated from time to time to insure the Web site remains in an optimized state.

Systems and methods are disclosed for the operation of a network of cognitive radios in a dynamic network topology. The systems and methods make use cross-layer communications to input parameters required by network services into a reasoning engine, which in turns processes the parameter the parameter information and reports linguistic results to the network services. The cross-layer communications are leveraged to shift network service functionality to the MAC or PHY Layers. Route discovery functionality is shifted from routing services down to the MAC or PHY Layers. The route discovery functionality is implemented by a process to elect a relay node based on the number of available channels that each of the source node neighbors has available to communicate with other neighbors.

The invention discloses a vehicle queue stability control method considering communication delay. The method comprises the steps that 1, a vehicle queue following mathematical model is established; 2,a nonlinear lower layer control gain is constructed by a feedback linearization strategy, and a node power unit is described as a node linear model; 3, a high-dimensional closed-loop state equation of a vehicle queue following control system under dynamic parameter uncertainty is established; 4, sufficient conditions are used for giving sufficient conditions that a vehicle queue with communication delay has a stabilization controller under the symmetric communication topology; and 5, the stabilization controller is constructed to obtain a controller gain so as to control static feedback control of a distributed controller, and the stability of the vehicle queue following control system is ensured. The method can ensure the stability of the vehicle queue following control system, reduces the vehicle queue following interval, increases the traffic flow, and reduces the energy consumption.

A communications system for one or more of a community's public safety resources is upgraded to include a public safety network. Assets owned by one of the public safety resources may be controlled over the network from a remote command center that compiles information from the network-enabled resources in the community to enhance the ability of the assets to effectively deployed in an emergency situation. The upgraded communications system at the public safety resources also enables trusted resources, such as the assets owned by the public safety resources, to access the network and communicate with additional trusted resources throughout the community. Additionally, the public safety network may be extended using mobile transceivers to form an ad hoc network in the event part of the infrastructure supporting the network is lost.

The invention provides an electric automobile capable of achieving unlimited long-distance endurance and tracked mobile charging and power supplying systems of the electric automobile. According to the technical scheme, guide rails for supplying power are laid on the two sides of a center isolating strip of a highway, the electric automobile with a brush and a navigation control device can be connected with the guide rails for charging and power supplying in the traveling process, and in this way, by means of the guide rails serving as the charging and power supplying systems, the electric automobile can achieve unlimited long-distance endurance on the highway. The method can solve the problems that a current electric automobile is limited in endurance mileage and can only travel locally for the short distance, and the cost of batteries is high, and is beneficial for the development of electric automobile industries and popularization of electric automobiles.

The invention relates to parking lot management systems, in particular to a car networking system for parking service. The car networking system comprises vehicle license plate recognition systems, a car networking cloud platform and charge management systems, wherein the vehicle license plate recognition systems are arranged in a plurality of parking lots, and the charge management systems control entrance / exit ways of all the parking lots. Each charge management system is used for receiving license number information transmitted by the corresponding vehicle license plate recognition system, calculating parking fares of vehicles entering the corresponding parking slot and transmitting the license number information and parking fare information to the car networking cloud platform; the car networking cloud platform is used for user registration and also used for paying the parking fares of the vehicles corresponding to stored license numbers and sending payment information to the corresponding charge management systems. According to the car networking system, the vehicles do not stop when going up and down a ramp or passing through a curve entrance / exit, vehicle flameout, ramp start and the like can be avoided, and therefore safety accidents are reduced; the vehicles do not need to be stopped, and windows do not need to be opened; vehicle owners will not be affected by wind, rain and snow outside the windows any longer in bad weather.

An adaptive cruise controller having dynamics matching as a function of the situation includes an identification device for identifying various predefined categories of single-file driving situations, and for selecting a dynamic profile matched to the situation identified.

The invention provides a vehicle travelling guiding system based on internet of vehicles and a method for guiding vehicle travelling, belonging to the field of navigation apparatuses. The vehicle trip guiding system includes a route planning unit, a road condition information acquisition unit, and a road condition data service center, the route planning unit is used as a terminal to be arranged on a vehicle, and based on the road passing speed information of the passing road, the travelling route between the departure and the destination is planned. The road condition information acquisition unit is arranged on the vehicle, the real-time position of the vehicle, the passing direction of the vehicle, and the real-time passing speed of the vehicle can be timely monitored, the road condition data service center is in communication connection with the route planning unit and the road condition information acquisition unit via wireless network. The system improves the travelling efficiency, reduces the travelling cost, alleviates the traffic pressure, and reduces the traffic pollution.

The invention discloses a sub-area multi-intersection group decision-making control method. The method comprises: based on a traffic flow continuity idea, bringing forward an adjacent intersection coordination rate, and giving a calculation formula of the adjacent intersection coordination rate and a sub-area multi-intersection total coordination rate; through research into a sub-area multi-intersection group intelligent coordination control strategy, designing a sub-area multi-intersection group decision-making control optimization architecture, and bringing forward an adjacent intersection decision-making control method and model; and by taking the size of the sub-area intersection total coordination rate as a signal timing basis, establishing a sub-area multi-intersection group decision-making control model, constructing a common signal period, a green ratio and a phase difference colony optimization function, designing a signal timing optimization process, and bringing forward an optimization algorithm based on genetic algorithms-simulated annealing such that sub-area multi-intersection group coordination control is realized. The method provided by the invention is applied to sub-area multi-intersection signal timing optimization under various traffic states of a medium-sized city, can improve the area coordination control capability, effectively reduces parking frequency and driving delay, and alleviates traffic congestion.

The invention discloses a vehicle queue stability control method considering vehicle dynamics parameter uncertainty. The method comprises the steps that 1 a mathematical model of vehicle queue following is established; 2 nonlinear lower-layer control gain is constructed through a feedback linearization strategy to describe a node dynamic unit as a node linear model; 3 the high-dimensional closed-loop state equation of a vehicle queue following control system under dynamics parameter uncertainty is established; 4 the stability of the high-dimensional closed-loop state equation is converted intothe stability of several low-dimensional sub-modal systems, and sufficient conditions for the existence of a stabilization controller for vehicle queues with dynamics parameter uncertainty under symmetric communication topology are given; and 5 the sufficient conditions are used to propose a low-dimensional Riccati inequality, and the solution of the Riccati inequality is used to construct a stabilization controller to acquire controller gain. The method provided by the invention can ensure the stability of the vehicle queue following control system, reduces the following interval of vehiclequeues, increases traffic flow, and reduces energy consumption.

The presented inventions seek to create a verifiable and closed loop chain-of-custody for a specific transaction in a pneumatic tube transport system while allowing a sender and recipient to perform asynchronous activity. That is, one aspect the presented inventions allows a sender to securely send a carrier to a desired recipient while allowing the desired recipient to receive the secured carrier at a convenient time and / or location without tying up system resources. Another aspect improves the physical barriers between high value payloads and the unintended recipients. This is done in part by introducing randomness into the carrier delivery process such that no member of the general public or facility staff knows the location and / or delivery time of a secured carrier without having access to specific database records indicating the current location and / or delivery status of the secured carrier.

The invention discloses a small-scale full interchange crossing, which comprises a cross-shaped or trifurcate or special crossing, wherein a round barrier formed by the combination of a flower bed, flowers and grasses and fingerposts is arranged in the crossing; motor vehicle loops are arranged outside the round barrier and are communicated with motor vehicle lanes; loop underpass tunnels with a plurality of daylight openings outside the motor vehicle loops are communicated with non-motor vehicle lanes of the crossing through underpass approaches; and loop overpasses, approaches and pedestrian loops are arranged outside the tunnels and are communicated with sidewalks of the crossing. The small-scale full interchange crossing has the advantages that: the small-scale full interchange crossing ensures that people and vehicles can make three-dimensional pass at the crossing, improves the pass flow of the crossing and the turning velocity, avoid the cut-in of transverse and longitudinal vehicles and pedestrians at the crossing from causing traffic accidents, has time-saving pass and short back haul and energy conservation of vehicles, ensures that the pedestrians pass through the crossing from the pedestrian loops during the low valley of the pass that no traffic stream exists at the crossing and pass through the crossing from the loop overpasses during the rush hours of the pass that the crossing is occupied by the transverse and longitudinal vehicles, is most suitable for being implemented at small crossings, removes red and green lights which occupy energy for ever, and does not need to always occupy traffic polices and traffic wardens at the crossing.

A portable Dynamic Testing Vehicle able to test for surface friction, drag, and travel distance, through contaminates accounting for longitudinal and lateral acceleration. The DFT is completely self contained with on board power supply, control unit, and water tank. The DFT has a high profile and long chassis to facilitate ease of movement and measurement at up to 100 km / h. Data obtained is transferred through the use of a wireless data transfer to a small handheld personal computer and then to a desktop computer where data is analyzed and or archived via specifically written software.

The invention relates to an unmanned rail electric vehicle and a sky-train system. Regarding the rail electric vehicle, a lane is laid by turnout-free light rails and an anti-impact vertical guide pavement closed and laminate lane, and the vehicle runs on the railway, thus being named as sky-train; the rail electric vehicle adopts unmanned driving, and a destination is found through addressing codes by a vehicular computer system and through road infrared remote control information; a rail electric vehicle monitor center, an automatic indoor parking lot, a high-rise high-capacity indoor parking lot, an indoor platform and a waiting room are arranged; a bus-type rail electric vehicle ticket can be booked by a method which sends a short message via an internet mobile phone, and a taxi-type rail electric vehicle or a household rail electric vehicle can be reserved for pickup on time at a right station; a steering mechanism does not have a steering wheel, the vehicle steering can be completed by a main steering wheel and an auxiliary steering wheel through guiding pavement; and the rail electric vehicle can be a bus type, a taxi type, a household type and an online goods delivery and receiving type.

The invention relates to a control method and system for improving the passing efficiency of a narrowed road section. The control method comprises the steps: S1, the average speed, the flow and the traffic flow density, obtained at each sampling moment, of various types of vehicles in various lanes of various road sections are recorded; S2, a traffic flow prediction model is established on the basis of a Multi-Class CTM model and in combination with the number of vehicles for speed limiting and lane changing of different lanes, and a measured value serves as an initial condition for predictingfuture dynamic conditions of traffic by the prediction model; S3, based on the traffic flow prediction model, an objective function and constraint conditions of an optimization problem are established, and a finite time domain optimization problem is solved; and S4, the first element in the optimization problem solution sequence acts on the controlled object based on a rolling optimization framework of model prediction control, the next sampling moment is entered, and the steps are repeated until the whole sampling time period is completed. According to the scheme, the application speed and the traffic state change between different lanes within limited time after lane changing control are predicted, and the prediction precision is improved.

The invention discloses an adaptive service data distribution method in the IOV (Internet of Vehicles) environment based on opportunistic communication. The method comprises the steps: enabling adjacent vehicles or RSU to receive a Beacon message, judging the validity of the message, calculating an expected forwarding time delay if a forwarding condition is met, adding the expected forwarding time delay to a field, returning to RREP, enabling a vehicle or RSU at a former jump to execute the RREP response processing process after receiving the RREPs of the adjacent objects, returning an RREQ to an optimal next jump selected from a candidate object set, enabling a candidate object to judge whether all data packages arrive at a target position or not after the candidate receives the RREQ, enabling a forwarding vehicle or RSU to restart the new broadcast if not all data packages arrive at the target position till all data packages arrive at the target vehicle. The method achieves the effective distribution of service data in the IOV environment, improves the packet loss probability under the condition that other indexes and performances are guaranteed to be lossless, reduces the number of retransmission times, and reduces the time delay and the network expenditure.

A portable Dynamic Testing Vehicle able to test for surface friction, drag, and travel distance, through contaminates accounting for longitudinal and lateral acceleration. The DFT is completely self contained with on board power supply, control unit, and water tank. The DFT has a high profile and long chassis to facilitate ease of movement and measurement at up to 100 km / h. Data obtained is transferred through the use of a wireless data transfer to a small handheld personal computer and then to a desktop computer where data is analyzed and or archived via specifically written software.

The invention belongs to the technical field of urban road intersection passing. For the urban road intersection passing method, the conventional passing method for twice alternating of left turning is cancelled; a left-turning line for left-turning vehicles is changed; the wait-for-passing time of wait-for-passing vehicles is shortened; and mutual collision caused by crossed traveling of straight-traveling vehicles and the left-turning vehicles is avoided. Straight-traveling and left-turning motorcycles, tricycles and electric vehicles anticlockwise turn right along a planned line, so that behaviors that the motorcycles, the tricycles and the electric vehicles leave the own lane and occupy other lanes as well as run the red light are avoided. The position of a pedestrian crosswalk 9 is moved backwards compared with the conventional intersection passing method, so that behaviors of pedestrians who go across the road are standardized, and the safety of the pedestrians is guaranteed. The position of a vehicle stop line 16 is moved forwards compared with the conventional intersection passing method, so that distances of an intersection is shortened, and the passing speed is improved.

A mini buried under ground vehicle detector comprises metal sensing detection coil and its oscillator unit, vehicle geomagnetic image detection unit, demodulation / commutation circuit unit, signal process / logic process unit, signal transition / transmission interface unit that can also link sub-detector, power and shell. This invention can detect vehicle flowrate, road occupancy rate, speed, stopping time and temperature of road surface; widely used to monitor for traffic and park, management and command system; with low cost, little volume, modularization, high reliability; use total encapsulated out shell, buried under road surface; convenient and speed to assembly, and needs no maintenance; it can be also used to security alarm and monitor system.

The invention relates to an optimization method for a multi-bandwidth artery bus control scheme. The method includes the following steps: S1, in some lines having multiple intersections in a trunk line network, collecting trajectory data of multiple bus running lines according to detection points arranged at a certain distance, a bus adopting a bus priority strategy; and S2, optimizing the trafficflow that the bus is driven from a in the trunk line network from the previous intersection to the last intersection by utilizing a mathematical optimization model and adjusting periods, phase difference signals, car green wave bands and bus trajectory variables so that a optimization control scheme of the bus can be obtained. Compared with the prior art, the method can realize simultaneous optimal solution of sub-area division and green wave design, the suitable condition of the method is that the running situations of the bus are relatively stable, so that the bandwidths of a green wave bands can adapt the random fluctuation of the running of the bus, and therefore, the control effects of the bus priority strategy can be enhanced.

An occupancy based focused marketing system for augmenting market control techniques corresponding to one or more buildings of one or more building types within a geographic subsector is provided. The occupancy based traffic control system has a subsector occupancy aggregator, an other facility occupancy estimator, and a subsector market control processor. The subsector occupancy aggregator is configured to receive energy consumption and outside temperature streams corresponding to a portion of the one or more buildings, and is configured to employ occupancy components for each of the portion of the one or more buildings to process the streams, and is configured to generate average occupancy components corresponding to each building type within the portion of the one or more buildings and a first aggregated occupancy component for the first portion of the one or more buildings, where the occupancy components are generated by exclusively processing the streams. The other facility occupancy estimator is coupled to the subsector occupancy aggregator, and is configured to receive the average occupancy components, and is configured to match the average occupancy components to remaining ones of the one or more buildings not in the first portion according to building type, and is configured to generated a second aggregated occupancy component for the remaining ones. The subsector market control processor is configured to employ the first and second aggregated occupancy components to determine an occupancy estimate for the one or more buildings, and is configured to identify particular ones of the one or more buildings based on the occupancy estimate, and is configured to transmit targeted marketing messages to the particular ones of the one or more buildings directed towards increasing traffic flow.

The invention belongs to the field of intelligent traffic control, and discloses a traffic light time length dynamic control method and system based on sliding average traffic volume. The traffic light time length dynamic control method based on sliding average traffic volume comprises the following contents: in the initial state, T<H>=T<V>, T<HG>=T<VG>, T<HR>=T<VR>, and the north-south directionand the east-west direction are given the same passing time; if two conditions are satisfied, traffic light time length adjustment is triggered, and if the conditions are still satisfied after adjustment, adjustment continues to be made according to the rules; when the traffic light time length in the vertical direction is less than or equal to d / 2.4Vmax, adjustment is stopped; and if the trafficvolume in the current direction decreases and is less than that in the other direction, reverse adjustment is made. By using the traffic light time length dynamic control method and system based on sliding average traffic volume provided by the invention, traffic light control is very flexible, the traffic capacity is improved, and congestion is relieved.

The invention discloses a long-term static object detection and tracking method with a function of state marking, and the method comprises the steps: firstly constructing a long-short double-foreground model, and generating a foreground mask after fusion; secondly carrying out the classifying and marking of block masses based on the moving states of the block masses on the foreground mask, and obtaining long-term block masses; and finally updating the long-short double-foreground model of a corresponding region of the block masses in different states. The method obtains the foreground mask of an image through employing a long-short foreground detection method, carries out the classifying and marking of the block masses according to the durations of the block masses in the long-short foreground mask, the time difference of the durations of the block masses in the long-short foreground mask, the moving tracks of the block masses and the features of difference between the block masses and the surrounding pixels, obtains the probability value of the moving states of the block masses through employing a logic regression analysis method, and finally updates the long-short double-foreground model of the corresponding region of the block masses in different states, has the detection instantaneity, is better in video detection effect and robustness than other conventional methods for different scenes, and can meet the actual application demands.