198results about How to "Reduce traffic pressure" patented technology

The invention relates to an intelligent traffic system-based intelligent vehicle lane changing decision-making method. The method comprises the following steps of firstly, parsing the received broadcast data of an intelligent traffic system by an intelligent driving system, and extracting the event information; secondly, completing the coordinate conversion of a road event by the intelligent driving system, and obtaining an event influence factor according to the event information; finally, according to the event overall influence factor and the judgment result that the current road environment allows the lane changing decision of a vehicle, allowing the lane changing path re-planning, simultaneously calculating the desired behavior of the vehicle and changing the lane of the vehicle. According to the technical scheme of the invention, according to the attribute of a road event ahead of the vehicle and the environmental information around the vehicle, the influence factor of the current vehicle driving road is calculated. Therefore, the necessity, the security and the reliability of the lane changing decision of an automatic driving vehicle are evaluated. Meanwhile, preparations are made in advance before the lane changing of the vehicle.

An intelligent logistics platform system comprises a city-wide distribution basic function module, a city-wide logistics distribution supporting service module and a transaction value-added service module. According to the platform, with high-tech intelligence as the support, the role of information technology in logistics distribution is enhanced, and a new logistics distribution service system for realizing the most effective resource allocation between city logistics vehicles and goods is achieved. Through integrating related information of logistics upstream and downstream enterprises, a comprehensive supply chain solution is provided, diverse and complex needs of a demand side can be met effectively, logistics market informatization is promoted, and while the economic development of the region is promoted, the Internet of things research and development field is expanded.

The invention provides a signal lamp state terminal display method and a system based on a cooperative vehicle infrastructure technology. The system comprises a traffic signal machine, a roadside module, a vehicle infrastructure communication module and a terminal device, wherein the traffic signal machine is used for generating signal lamp phase timing information and transmitting the information to the roadside module; the roadside module is used for publishing intersection position information, local MAP information and a real-time SPAT information; the vehicle infrastructure communication module is used for information data interaction between the terminal device and the roadside module; and the terminal device is used for acquiring, processing and displaying the vehicle motion state data and terminal information. The cooperative vehicle-infrastructure technology is used for realizing real-time displaying of the signal lamp state on the terminal device, a driver can conveniently judge the vehicle passing time and the queue time, the road traffic safety is enhanced, the road traffic pressure is reduced, influences from the environment, the vehicle and the driver do not exist, and the system use efficiency is high; and red lamp early warning or automatic control can also be realized, the intersection driving safety is ensured, and a behavior of running the red lamp to break the law can be avoided.

The invention relates to a method for the team formation and the separation of a cooperative adaptive cruise control vehicle team. The method comprises the following steps that: S1) defining a relevant critical distance, a safe distance, team formation upper limit length and the like; S2) sending a self-vehicle state to other vehicles by a vehicle, and receiving vehicle team adding or leaving information sent from surrounding driven vehicles; S3) detecting and identifying a vehicle distance and the surrounding environment of the vehicle; and S4) analyzing the information received by each vehicle according to a self-set rule set by a control system, feeding back an execution result to a communication system, and releasing execution information to each vehicle by a communication system. Themethod formulates various self-set rules for vehicle team formation and separation, wherein the self-set rules include a rule for adding a single vehicle into the vehicle team, a rule for carrying outvehicle team formation, and a rule for separating the vehicle team into a plurality of vehicle teams. Therefore, the team formation and the separation of the cooperative adaptive cruise control vehicle team can be realized.

The invention relates to a cloud technology platform-based urban airport traffic hub management system. The cloud technology platform-based urban airport traffic hub management system includes a parking big data unit used for storing and processing the data of the system, parking acquisition units which are arranged at each parking space and are used for acquiring the parking state data of each parking space in real time and uploading information data, a parking service unit which is used for guiding and querying relevant information of parking around an airport, and applying for parking for the parking spaces, a parking transaction processing unit which is used for processing parking applications and parking states and generating parking data statistical analysis early warning processing, and carrying out payment and settlement for parking orders, an operation management unit which is used for monitoring the state situations of the parking spaces and parking equipment in real time, and an information processing unit which is used for performing statistical analysis on the parking situations of the parking spaces, and distributing parking situations and traffic information situations of each area. With the cloud technology platform-based urban airport traffic hub management system adopted, the unified management of urban airport parking can be promoted, and the utilization rate and turnover rate of the parking spaces can be improved.

Disclosed is an analytical method for typical running routes in urban traffic, comprising steps as follows: (1) setting a road net topology structure as G = (V, E), vehicle information of every road junction at a corresponding certain time as R = (Ri|ií—(1,n)), judgment threshold of hotspot junction as k and judgment threshold of typical running route as k', (2) generating first sorting typical running routes between hotspots, which comprises obtaining a hotspot road junction aggregate by filtering road junction volume, in regard to vií—V' and Hií—H, generating a running route aggregate W' between the hotspots and obtaining a first sorting typical running route W'' by calculating the occupancy of the route according to the generated route W', (3)initially selecting the clustering of the first sorting running route and the generating of the traffic junction merger routes in every clustering aggregate according to the method to obtain the typical running route aggregate W with different particle sizes. The invention is short in processing period, low in cost and high in efficiency, and can reflect the change of the traffic conditions by calculating the typical running route.

The invention discloses a route selection method and system based on road abnormal area evaluation. The method comprises that a traffic route model data storage module is initialized; physical sensors in vehicles acquire and transmit vehicle traveling data to a nearest traffic route information acquisition module which filters and integrates the data into hot spot (HSP) information data of a current road section; every once in a while, all traffic route information acquisition modules upload HSP information data of all road sections to an HSP processor; a processing module calculates impedance generated by each current road section of each HSP, collects and generates the impedance into traffic road model data and updates the data to the traffic route model data storage modules; optimal route selection modules calculate optimal routes after vehicles update and download the traffic road model data. By means of the route selection method and system, the route selection efficiency can be improved, traffic transportation pressure can be well relieved, traffic road resources are well distributed, and the traffic transportation capacity is improved.

The invention discloses an intelligent parking system suitable for a large-scale parking lot, comprising a vehicle classification navigation module, a parking space state determine module, a parking irregularity identification module, a parking space reservation module, a parking charging module, etc. The inlet of a parking lot and the inlet of each parking space are all provided with wireless sensor nodes. The system has small nodes, is very convenient to deploy and maintain, and can be directly installed at a current parking lot. The intelligent parking system allows drivers to obtain the parking states of a parking lot in advance so as to facilitate route planning, and mitigate traffic pressure, and meanwhile provides convenience for a parking lot attendant to get the picture of the parking lot states so as to reduce management manpower costs, and improve parking lot competitiveness.

The invention provides a regional traffic dynamic regulation-control method, which comprises the steps of: selecting certain intersections to be set as feedback gate control intersections; ranking the intersections to obtain traffic flows of the intersections; establishing a regional macroscopic fundamental diagram; and regulating the intersections when a network macroscopic net flow reaches a threshold value. In the scheme provided by the invention, the traffic control and traffic guidance are combined to form a feedback type system, and dynamic flow interception is carried out on the periphery of a central region for controlling the traffic flow entering the central region by utilizing a macroscopic fundamental diagram function obtained through data of a detector, thereby reducing traffic pressure in important regions.

Disclosed is a system for proactively solving urban traffic congestion. Traffic conditions are forecast in a mode of collecting travel information of travelers, and the travelers are enabled to actively avoid a busy section. The operation process of the system is that a large amount of travelers send departure place information and destination information to an information processing center through a navigation client or a mobile phone, and monitor and analyze the traffic conditions through a real-time traffic monitoring and analysis system, the information processing center calculates a static shortest path and a real-time least-time path according to received departure place data and destination data, and a real-time optimal path analysis system carries analysis and calculation according to departure places and destinations sent by a large amount of travelers by combining with an urban road network, screens out a hub and a section with huge traffic flow in a period of time in future, identifies busy degree to each key node and each section according to the size of the traffic flow, carries out route optimization analysis by combining with the static shortest path, the real-time least-time path and the busy degrees of key nodes and sections, obtains an optimal path, and sends the optimal path to the travelers.

The invention relates to sorting refuse disposal system and its method. The system comprises distributing device, feeding belt conveyer equipped at outlet of distributing device, sorting device under the outlet of feeding conveyor, two outlets on sorting device, regrading device under the outlet of organic matter, organic matter discharging belt device equipped at discharging side, garbage container under the discharging side, and discharging belt device under the inorganic matter outlet. The invention comprises the following steps: anti-odor treatment, sending garbage to sorting device to complete selective breaking sorting; organic refuse biological treatment or composting process. The invention is adapted to various garbages and sorting garbage at its source.

The invention discloses a shared bicycle parking method and a device thereof. The method comprises the following steps of receiving a bicycle usage termination instruction, and acquiring the current position information of a shared bicycle; judging parking areas for the current position information, wherein the parking areas comprise a first area for recommending parking, a second area for allowing parking and a third area for prohibiting parking; and executing a preset action according to the judging result of the above step. By adopting the shared bicycle parking method and the device thereof, when a user no longer uses a shared bicycle, the position of the shared bicycle is acquired and judged. If the shared bicycle is positioned in a parking-forbidden area, the user is prevented from terminating the bicycle using process. Meanwhile, the user is driven to park the shared bicycle in the allowable area, so that the travel of other people is not influenced at all.

The invention discloses a real-time sharing system and method for road condition information based on the vehicle network. The system comprises an information sending end, an information receiving endand a server; the information sending end is used for achieving a location-based road condition information sharing module, and a vehicle supplying information sharing service shares information requiring sharing from the information sending end to the server; and the information receiving end is used to implement the road condition information screening based on the user demand, the vehicle thatneeds the information sharing service sends the demand information from the information receiving end to the server, and the server filters out the road condition information required by the user according to the demand information and feeds back to the information receiving end for sending. The real-time sharing system and method for road condition information based on the vehicle network can perform prediction of the future vehicle operation state to effectively prevent from generation of traffic accidents so as to reduce the traffic accident occurrence rate, can allow drivers to select proper non-jamming paths for driving in good time so as to improve the road network carrying capacity, can relieve the urban traffic carrying pressure and can allow the road network structure and distribution to be globally relatively instantaneously averaged.

The invention discloses a short-time parking demand prediction method based on a GRU model. The short-time parking demand prediction method comprises the following steps: 1), obtaining historical dataof parking lot facilities, processing the historical data, and obtaining the parking space occupancy data at each time point; 2) setting a GRU neural network structure by using a deep learning Kerasframework packet, and obtaining model optimal parameters by using a GridSearch function in the Keras packet; and 3) training a GRU model by using the training set data, storing the model and predicting the berth occupancy of the next step length. Compared with the prior art, under the background of obtaining continuous parking data, the short-time parking demand prediction method utilizes the bigdata processing technology, applies the latest algorithm of deep learning, provides a more advanced and more accurate parking information induction publishing method, and can consider the relevance ofthe parking demand in the time dimension while the cell module has a simpler control door structure, so that training efficiency can be improved to a great extent, and then the utilization rate of parking facilities is increased, and satisfaction of users with parking requirements is improved, and unnecessary traffic of the users is avoided, and traffic pressure of roads is reduced, and effectivetraffic control of traffic management departments during peak hours of traffic flow is facilitated.

A no-parking type microcirculation urban rail traffic system is an urban public traffic system which can facilitate travelling of urban people and relieve urban traffic congestion pressure. The system is characterized by being composed of annular rails, a rail car set and coaches. The annular rails connected end to end are built on a street on the periphery of a small urban area, each annular rail surrounds one or more small urban areas according to the actual area of the small urban area, one part of each annular rail is located on a main street or a collector street, guide rails are arranged in the annular rails, the rail car set running cyclically at a set constant speed clockwise in a no-parking mode is arranged on the guide rails, stations are arranged at fixed points of the annular rails, the coaches are arranged on the stations, and the whole system is driven by electric power. The system can achieve the following aims that traveling of people on branches, the main street and the collector street is organically connected, and the problems about one starting kilometer and the last kilometer are well solved; the needs for short-distance travelling on the main street and the collector street are met.

The invention relates to a design method for cooperating the street crossing of opposite-angle pedestrians and the left turning of a motor vehicle at an intersection. According to the method, firstly, traffic island chamfer parts (2) of angle-turning traffic islands (1) in the opposite-angle direction of the intersection are connected with each other, and two zebra crossings (5) with the opposite angles being crossed are arranged so that the opposite-angle pedestrians can pass through; a central pedestrian safety island (7) is arranged in the center of the intersection, and a left turning guide line (6) of the motor vehicle is arranged in the intersection, so as to ensure the separation of motor vehicles and non-motor vehicles at the intersection and guarantee the secondary opposite-angle street crossing safety of the pedestrians; meanwhile, pedestrian street-crossing traffic lights (4) in the opposite-angle direction are arranged on the angle-turning traffic islands (1) at the intersection, so that the street crossing of the opposite-angle pedestrians and the left-turning street crossing of the motor vehicles are controlled together with signal phases cooperatively. According to the design method, the effective road passing-through area of the intersection at a left-turning phase can be effectively enlarged, the delay of the street crossing of the opposite-angle pedestrians can be reduced, and the traffic conflict can be decreased. The design method is suitable for the intersection of an urban road which is large in the flow of the left-turning motor vehicles, large in the demand of opposite-angle street crossing and lower in the speed of the vehicles.

The invention relates to a dynamic emergency evacuation method for failure of urban rail transit lines, which relates to the technical field of rail transit control. The problem of secondary propagation of stranded passenger flow in network caused by limited evacuation capacity of single station is solved. The method comprises: attribute set and running state set of each station in the network being established; analyzing station passenger flow state ; SAS software being used to predict the passenger flow and simulate the arrival process of the passenger flow; determining evacuation starting point and evacuation end point; constructing the emergency rail transit cooperative evacuation network; constructing the dynamic path selection model in the range of destination; determining the best evacuation path; determining the number of emergency buses required and the interval between the buses; determining the distribution of passenger flow to be evacuated to the evacuation subway station;according to the parameters of rail transit train, determining the train transport capacity, combined with the passenger flow of subway station, to allocate the resources of train transport capacity,to formulate the train operation plan in emergency state. The invention increases the passenger flow evacuation capacity of a single node to improve the efficiency of network evacuation.

The invention discloses a turnover type repair method for a normal-temperature curing lining and a turnover device for the turnover type repair method. The turnover type repair method is completed by virtue of mutual cooperation of a turnover machine, a leveling machine and an air compressor room. The turnover machine is provided with a charge hole, a discharge hole and a leading-in barrel. The repair method comprises the following steps: dredging and pre-processing a repaired pipeline; mixing and naturally cooling resin, and filling the resin into a prefabricated hose; winding a lining resin hose by virtue of cooperation of the leveling machine and the turnover machine; pressurizing and turning over the lining resin hose by virtue of cooperation of the turnover machine and an air compressor; pressurizing and laminating the hose by virtue of the air compressor, and carrying out stable-pressure curing on the lining hose; and carrying out end part processing. According to the turnover type repair method for the normal-temperature curing lining and the turnover device for the turnover type repair method disclosed by the invention, the normal-temperature lining hose is pressurized and cured at the normal temperature by sealing the leading-in barrel, so that process flow of site construction is simplified, and pipeline repair construction efficiency is improved; and turnover-process repair construction can be carried out on a narrow and small site without a built rotating tower, so that traffic pressure is reduced, and the range of application of a non-excavation lining technology is expanded.

The invention discloses a cap beam which is efficient, convenient and quick to construct, and the cap beam comprises a cap-shaped cap beam reinforcement cage and is characterized in that a cap beam embedded part is arranged in the middle of the cap beam reinforcement cage. An erection method of the cap beam comprises the following steps of manufacturing the cap beam, performing pier column construction, embedding prestressed reinforcements and splined hole steel pipes, hoisting the prefabricated cap beam to the top of a pier column with hoisting equipment, connecting the prefabricated cap beam with the prestressed reinforcements, tensioning the prestressed reinforcements, concreting and grouting the cap beam embedded part of the prefabricated cap beam, and concreting and closing the top ends of the prestressed reinforcements. The cap beam and the method give full play to the advantages of cap beam construction; the pier column is effectively and fixedly connected with the cap beam by adopting the prestressed reinforcements and the splined hole steel pipes; the prefabricated cap beam is hoisted directly, so that treatment on a foundation is reduced; the existing road traffic pressure is reduced; the support erection time is saved; the construction period is shortened; and in short, the method is more scientific in working efficiency, economy, environmental protection and the like in comparison with the currently adopted method.

The invention relates to a parking space sharing intelligent management system, which comprises a server, a mobile phone terminal, a vehicle access gate module and a parking space ground lock module;the mobile phone terminal is in wireless data communication connection with the server, the intelligent management platform, the parking space ground lock module and the vehicle access gate module. The management system provided by the invention is high in intelligence, convenient for a user to operate and low in investment cost; in addition, the problem that parking is difficult is greatly solved, and remarkable social benefits and economic benefits are achieved.

The invention provides an intelligent traffic self-networking system with a cloudlet function. The system comprises an intelligent traffic information acquisition and analysis node and a cloudlet scheduling center; the intelligent traffic information node utilizes an RFID (Radio Frequency Identification Device) as a data acquisition technology, the data acquisition technology is compared and fused with a GPS (Global Positioning System) data acquisition technology and a data processing analysis platform (such as a GIS (Geographic Information System)); the automatic self-networking function is realized by utilizing a cloudlet self-networking circuit; and information processing, analysis and forwarding of a single node and information comparison processing of multiple nodes can be realized through processing and calculating of a cloudlet topological structure so as to carry out functions of flow control, path planning, fault analysis, time prediction and the like. The nodes are communicated with the cloudlet scheduling center through a network and a radio so that section control is realized and the scheduling center processes priority levels of various kinds of information on the intelligent traffic information node.

The invention discloses an urban main road left forbidding and left turning protection phase setting method. Firstly the present flow, the number of lanes and signal timing plans of all phases of all intersections are acquired and inputted as for multiple continuous signal control intersections of urban main roads; then the redistribution result of the flow and the number of lanes after the intersection left forbidding or setting the left turning protection phase is calculated, and the green signal ratio and the green light time of each phase of the intersections are calculated according to the redistribution result; and finally a calculation model for the optimal setting location of urban main road left forbidding and the left turning protection phase is established. According to the method, congestion of the main roads caused by large demand of left turning traffic flow of the intersections of the main roads can be mainly alleviated, and the traffic capacity of the intersections of the main roads is ensured to be mutually matched by reasonably setting main road left forbidding and the left turning protection phase so that traffic congestion can be alleviated and the traffic delay can be reduced.

The invention discloses a coordinate platform of a logistics flying delivery system. The coordinate platform comprises N client coordinate platforms, an unmanned aerial vehicle taking off and landingplatform, flying delivery unmanned aerial vehicles, unmanned aerial vehicle platforms and a plurality of ground emergency patrol vehicles. The client coordinate platforms are mounted outside balconiesof flying delivery registered clients, the client coordinate platforms and the unmanned aerial vehicle taking off and landing platform have individual communication numbers and are internally provided with positioning guide signal transmitters and communication number transmitters, and the client coordinate platforms and the unmanned aerial vehicle taking off and landing platform are provided with automatic folding devices. When the client coordinate platforms and the unmanned aerial vehicle taking off and landing platform stretch in a horizontal state, the positioning guide signal transmitters and communication number transmitters are started automatically; when the client coordinate platforms and the unmanned aerial vehicle taking off and landing platform are folded in a vertical state,the positioning guide signal transmitters and communication number transmitters are closed automatically. The coordinate platform has advantages that by GPS navigation and coordinate platform positioning signal guide, the unmanned aerial vehicles are capable of quickly and accurately reaching floors in high-rise buildings, and environmental friendliness, high efficiency, quickness and safety in delivery are realized.

The invention discloses a new method for allocating and sharing vehicle logistics based on mobile phone software, using mobile phone software to allocate idle spaces such as road vehicle trunks for logistics behavior, decomposing huge logistics demand and urban traffic congestion pressure; using smart phone software as a carrier, Car owners share the idle space of vehicles, and users post their own logistics needs, then they can optimize configuration through mobile phone software, carry out efficient logistics behavior, make full use of road vehicles, replace some special logistics vehicles, improve traffic congestion, and save human and financial resources.