37results about How to "Traffic balance" patented technology

The invention provides a super-speed wireless local area network channel binding and allocation method based on channel quality. The super-speed wireless local area network channel binding and allocation method based on the channel quality comprises the first step of monitoring whether communication channels of a single threaded apartment (STA) managed by an application process (AP) are free or not through the AP, starting to control the free channels if the channels are free, and obtaining the number of the free channels, signal-noise ratio and signal interference ratio, the second step of calculating channel signal weight according to the signal-noise ratio and the signal interference ratio and confirming priority of the free channels according to the channel signal weight, the third step of polling the STA managed by the AP through the AP and obtaining business types existing in a local priority array of the STA, the fourth step of dividing priority of the business exiting in the STA through the AP, and the fifth step of allocating the free channels for the STA in a self-adaption mode according to business priority and channel priority with dichotomy through the AP. The super-speed wireless local area network channel binding and allocation method based on the channel quality not only balances the number of business of a network, but also provides more and better channel resources for high priority business. Quality of service (QoS) of the business is ensured and handling capacity of a system is improved.

The invention provides a sliding model control method for a desired safety margin car-following model so as to avoid the influence of system disturbance errors caused by the uncertain traffic environment and a vehicle system on the traffic flow stability. According to the technical scheme, under the condition that system disturbance is considered, the sliding model control method is introduced, and a novel DSM car-following model is established. Compared with an original DSM car-following model, the provided sliding model control method can effectively improve the queue stability, and technical support is provided for stability control methods of the fields of self-adaption cruise control, automatic driving and the like of vehicles.

The invention discloses an intelligent traffic control method. The method comprises the steps of receiving real-time road condition information of each direction of an intersection; conducting identification analysis on the real-time road condition information, and obtaining traffic flow data; adjusting the display time of each indicator light in a traffic signal light according to the traffic flow data, and obtaining a control signal of the traffic signal light after adjustment; sending the control signal to the traffic signal light. By means of the intelligent traffic control method, unnecessary traffic jams can be reduced. The invention further discloses an intelligent traffic control device and system which have the advantages above.

The invention discloses a vehicle following model stability control method considering driver perception error, which is used for solving the influence of the driver random perception error on the traffic flow stability. According to the method, under the condition of considering that a driver has an information perception error for the motion state of a preceding vehicle in the vehicle followingprocess, vehicle head distance and preceding vehicle speed confidence level parameters are introduced, a vehicle following model considering the driver perception error is established, and on the basis, a feedback control method is designed to enhance the stability of the model. Compared with a model which does not consider a feedback control method, the provided feedback control method can effectively improve the stability of the queue, and technical support is provided for queue stability control methods in the fields of traffic management and control, vehicle intelligent control and the like.

The invention discloses a city traffic optimization service method and system based on swarm intelligence; the method comprises the following steps: simulating local traffic situations according to swarm intelligence, and selecting a local scheduling strategy allowing each vehicle driving time and the local traffic situations to reach balance according to the simulation result and a local trafficoptimization target; using swarm intelligence to simulate the global traffic situation, and selecting a global scheduling strategy allowing the local traffic situation and the global traffic situationto reach balance according to the simulation result and a global traffic optimization target; recommending optical routes for each participating vehicle according to the swarm intelligence calculation result, thus realizing city traffic optimization services; finally, using the method to realize the city traffic optimization service system based on swarm intelligence. The system comprises a vehicle mounted platform, a situation cognition system and a swarm intelligence decision and control system, and aims to improve the city traffic optimization service decision enforceability and validity.

The invention relates to a multi-route network and a route switching method. The multi-route network provided by the method comprises a terminal, a server, multiple routes and multiple disaster-tolerant equipment, wherein the multiple routes and the multiple disaster-tolerant equipment are arranged between the terminal and the server; the multiple disaster-tolerant equipment are respectively provided with a driving link blocking module; and when a link of the disaster-tolerant equipment in which the driving link blocking module is positioned and a certain route breaks down, the driving link blocking modules can block links among the disaster-tolerant equipment and the other rest routes. The invention has the advantages that when the link of the disaster-tolerant equipment in which the driving link blocking modules are positioned and a certain route breaks down, the driving link blocking modules can block the link of the disaster-tolerant equipment and each rest route thereby avoiding the data loss.

A method for implementing the intelligent antenna based on beam forming technology and its device are relative to the intelligent antenna in mobile communication field. It includes following steps: configures application mode; the switched beam configuration; beam forming and base band processing; the evaluation of each cell traffic volume; the measurement for link performance; based on the algorithm and measurement parameter renewing parameter of beam forming; based on the algorithm and measurement parameter renewing the application mode. The antenna comprises: array antenna; upstream radio frequency channel unit; downstream radio channel unit; upstream beam forming unit; downstream beam forming unit, base band processor; beam processing controller. It can flexibly make adjustment for beam forming and change the coverage 's shape of sector to balance the traffic volume.

Disclosed are a service processing method and a related device. The service processing method comprises: a user equipment accessing a first network and obtaining a first address which is allocated to the user equipment and used for transmitting a service in the first network; accessing a second network and obtaining a second address which is allocated to the user equipment and used for transmitting a service in the second network; and determining a transmission network of first uplink data of a first service to be transmitted according to the network load and / or the network transmission quality, wherein the first network and the second network are networks with different models. The technical solution of the embodiments of the present invention is beneficial for improving the service transmission performance of networks.

The invention provides a method for realizing signal-lamp-free AGV path control. A traffic area is divided into a driving area and a loading and unloading area, and the traffic lanes of the driving area and the traffic lanes of the loading and unloading area are one-way lanes. The traffic lanes of the driving area comprise a lane to a shore bridge, a lane to a storage yard and a lane back to a repair area, wherein the directions of the lane to the storage yard and the lane back to the repair area are opposite to the direction of the lane to the shore bridge. The loading and unloading area comprises working lanes and crossing lanes, wherein there is one crossing lane on one side of any working lane, and there is one adjacent working lane on the other side of any working lane. According to the method, through the setting of the one-way trip lane, the return lane, the working lanes, the crossing lanes and the like, the complexity of the AGV path network is greatly reduced, transport AGVsgoing into or out of the storage yard are not prone to collision, congestion and jam, and the working efficiency is improved.

The invention provides an urban road crossroad signal switching control method. In the method, the running state of a crossroad is judged through a controllable state index, controllable state controland uncontrollable state control are designed for different controllable states, and switching control is designed through a switching control concept. When the control method is designed, the emptying strategy is considered as the control measure in the controllable state, the minimum number of total queuing vehicles in all phases is set as the basis of a target function design control method inthe uncontrollable state, and the problems caused by urban road traffic fluctuation and randomness are solved.

The invention provides a terminal switching method and a terminal switching device. The method comprises that when the load of a first district exceeds a first preset threshold, whether the load of a second district is lower than a second preset threshold is determined, wherein the second district is related to the first district, and the first and second districts employ different frequency ranges; and when the load of the second district is lower than the second preset threshold, a first terminal in the first district is switched to the second district which is related to the first district. According to the invention, the problems of a common BCCH (Broadcast Control Channel) technology including high failure rate of terminal designation, high failure rate of terminal switching, and telephone traffic imbalance of the two frequency ranges caused by incapability of accurately acquiring level states of the district in correspondence with the 1800MHz frequency range are solved, thereby improving success rates of terminal switching and terminal designation, and effectively balancing telephone traffic of different frequency ranges.

The invention discloses a method and device for obtaining user data, and belongs to the technical field of the internet. The method comprises the steps that hot spot transcript data servers are built, and are data servers used for storing the user data of hot spot accounts, and the hot spot accounts are accounts with the read frequency of the user data exceeding a preset threshold value within preset time; an updating data obtaining request is received, and account identifiers are carried in the updating data obtaining request; if the account identifiers of the hot spot accounts exist in the carried account identifiers, the hot spot transcript data servers for storing the user data of the hot spot accounts are determined; the user data in the hot spot accounts are obtained in the determined hot spot transcript data servers. The method and device can balance the visit traffic of all the data servers.

The invention discloses a method for determining threshold switching of a main serving cell. The method comprises the following steps: constructing a level difference telephone traffic distribution model between a main serving cell and a neighbor cell according to measurement report (MR) data of the main serving cell; adjusting different switching thresholds and carrying out switching simulation according to the level difference telephone traffic distribution model, and determining whether a telephone traffic balancing state of a telephone traffic amount of the main serving cell under different switching thresholds is realized; and determining the switching threshold of the main serving cell according to the situation whether the telephone traffic balancing state of the telephone traffic amount of the main serving cell under different switching thresholds is realized. According to the invention, because simulation is carried out by adjusting the switching thresholds, a transferring situation of the telephone traffic between cells under different switching thresholds can be predicted accurately; and thus the switching threshold of the main serving cell can be determined rapidly. In addition, the invention also discloses a system for determining a threshold switching of a main serving cell and a cell telephone traffic balancing method and system.

The invention discloses a traffic guidance scheduling system based on a particle swarm optimization algorithm and a scheduling method thereof, and belongs to the field of traffic control. The system comprises a guidance strategy making module, a guidance information generating module and a guidance information issuing module; the guidance information making module is used for making a management strategy according to the change of the traffic flow state and sending the management strategy to the guidance information generation module; the induction information generation module is used for generating driving time, traffic jam, driving distance and other indicative or inductive traffic information according to an induction strategy and sending the information to the induction information release module; and the induction information issuing module is used for issuing induction information to travelers. According to the method, constraints such as the flow, the inflow rate and the green time ratio are combined, the minimum sum of the road network driving time and the delay time serves as a target function, optimization is conducted through the particle swarm optimization, balanced distribution of the road network traffic flow is achieved, and the operation performance of the road network is effectively improved.

The invention relates to a batch service processing method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring at least one to-be-processed service, wherein each to-be-processed service in the at least one to-be-processed service carries an institution identifier and a service type; determining at least one batch service group based on the at least one to-be-processed service, wherein the service type and the group number of at least one to-be-processed service belonging to the same service group are the same, and the number of at least one to-be-processed service in each service group does not exceed the preset maximum number of services in each group; and processing each service to be processed in the at least one batch service group. By adopting the method, the processing time of batch to-be-processed services can be shortened, and the processing efficiency is improved.

The invention discloses a method for movable signal partition coverage. The method is characterized in that by means of relational characteristics between vertical beamwidths and signal coverage dead zones of antennas and relational characteristics between placement heights and gain curves of the antennas, the two antennas different in installation height and emission frequency are adopted and provide services for users in a near zone and a far zone of a cell. The low antenna is high in emission frequency and is responsible for providing the services for the users in the near zone; the high antenna is low in emission frequency and is responsible for providing the services for the users on the edge, and the antenna with the corresponding vertical beamwidth is adopted as the high antenna so as to be prevented from interfering in signals of the users in the near zone. Under the condition that the density of base stations is not changed, the method can be applied to airports, railway stations, tourist attractions, schools and other regions where a great number of users are located, the load capacity of the base stations can be enhanced, the telephone traffic of the antennas can be balanced, service handling pressure on the base stations can be relieved, service quality is improved, and user experience is promoted.

The invention discloses an urban road plane intersection. The urban road plane intersection comprises an intersection, wherein a left-turning motor vehicle waiting area or a right-turning motor vehicle waiting area is arranged on the left side or the right side of an original lane at the intersection. According to the existing China traffic rule that a motor vehicle runs on the right side of the lane, the left-turning motor vehicle waiting area is arranged on the left side of the original lane at the intersection; according to a traffic rule that the motor vehicle runs on the left side of the lane, the right-turning motor vehicle waiting area is arranged on the right side of the original lane at the intersection. According to the urban road plane intersection, two problems in a conventional urban intersection traffic control method can be solved, and the passage efficiency and balance of the motor vehicle at the intersection are improved at lower cost, so that the passage efficiency is improved, and the congestion probability is reduced. Similarly, a left-turning waiting area is arranged at a T junction, so that the passage efficiency is improved, and safety and time saving are realized.

The present invention proposes a communication method and device in a large -scale MIMO.In one embodiment, the UE received L's downward signal on LE's time -frequency resources, which were sent by the L community.Among them, all the frequency bands that can be used for downward transmission are all or partially re -co -converged.The Limited Resources of L is two or two positive intercourse.By using the technical scheme provided by the present invention, the coverage of the broadcast signal sent by multiple antenna base stations is avoided, the community interference is reduced, the business volume of the balanced community is reduced, the overhead of the physical layer signaling is reduced, and the transmission efficiency is improved.

The invention belongs to a device for jetting or pouring liquid or other fluids onto the surface of a workpiece or making the liquid or other fluids flow on the surface of the workpiece and particularly discloses a coating device for a plastic plate. The coating device comprises a rack and a liquid storage pool, and he rack is provided with a lower coating roller and an upper coating roller; the rack is provided with a liquid storage box; the lower coating roller is provided with a rotating shaft, the end of the rotating shaft is fixedly provided with a rotating rod, and a push rod is hinged to the rotating rod; the liquid storage pool is internally provided with a spring and an oil supply unit, and the oil supply unit comprises an oil storage bucket, an oil conveying pipe and a piston, and one end of the push rod is fixed to the piston; one end of the spring is fixed to the bottom of the liquid storage pool, and the other end of the spring is fixed to the bottom of the oil storage bucket; one end of the oil conveying pipe communicates with the oil storage bucket, and the other end of the oil conveying pipe communicates with the oil storage box; and the oil storage bucket is provided with a first one-way valve, and the oil pipe is provided with a second one-way valve. The device is adopted to performing coating on the plastic plate, the blister varnish in the liquid storage box can maintain a certain quantity, manual supplementation is not needed, and the work amount of workers is lowered.

The invention relates to a road layout of a herringbone road intersection-free passing system and a control running method thereof. Firstly, a triple herringbone road layout is constructed, namely a herringbone planar road outside a hexagonal region, a herringbone planar road inside the hexagonal region, and a herringbone overhead road in a crossing region; then driving directions of vehicles are determined; an anticlockwise surrounding direction is adopted around a central region, a clockwise surrounding direction is adopted in a first-ring region, and a road surrounding direction is adopted in a second-ring region and peripheral roads of all the regions and is the same as the surrounding direction in the hexagonal region opposite to the corner; finally, dotted lane lines and full lane lines are drawn according the surrounding directions; arrow-type vehicle traveling direction lines are marked, and central islands and turn-around islands are set. According to the mode combining the herringbone road layout with the unique intersection-free surrounding running method, the passing aims of no intersection, no waiting and no jam are completely fulfilled, and the value idea of humanity environment friendliness is achieved.