261results about How to "Improve congestion" patented technology

A system for detecting, monitoring, reporting, and managing congestion in a fabric at the port and fabric levels. The system includes multi-port switches in the fabric with port controllers that collect port traffic statistics. A congestion analysis module in the switch periodically gathers port statistics and processes the statistics to identify backpressure congestion, resource limited congestion, and over-subscription congestion at the ports. A port activity database is maintained at the switch with an entry for each port and contains counters for the types of congestion. The counters for ports that are identified as congested are incremented to reflect the detected congestion. The system includes a management platform that periodically requests copies of the port congestion data from the switches in the fabric. The switch data is aggregated to determine fabric congestion including the congestion level and type for each port and congestion sources.

A method, program, system and apparatus perform dynamic load balancing of coverage areas in a wireless communication network. The dynamic load balancing is performed by evaluating cell congestion based on location information of subscribers in the wireless communication network, collecting network parameters related to the wireless communication network and altering network parameters based on the evaluated cell congestion. After the network parameter is altered, the coverage areas are narrowed. Improvements in cell congestion and quality of server are then determined based on the narrowing of the coverage areas. Altering of the plurality of network parameters and evaluating of the cell congestion are performed continuously until a target quality of service is achieved.

A data flow control method and system within a data switch. The data switch includes a plurality of input sections each having an associated input buffer and each transmitting data to an output section. In response to a detection of congestion within the output section, data transmissions from the plurality of input sections to the output section are paused. Input buffer occupancies of each of the input sections are then determined. Thereafter, and in response to a backpressure relief signal, the restart of said data transmission from each of the input sections to the output section is delayed in inverse proportion to each of the determined input buffer occupancies.

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 discloses an establishing method and a working method for a traffic overflowing coordinate control optimization model. The establishing method includes the following steps that a queuing length limiting condition model is established to obtain a phase different range which can prevent traffic overflowing from occurring; a phase different optimizing method is established based on the minimum delay to obtain a function relation between phase difference and delay time; according to different restraints, on the phase difference, of the queuing length limiting condition model and the minimum delay phase difference optimization method, the two restraints are combined to take the minimum value in an intersection, so that the traffic overflowing coordinate control optimization model which not only can prevent overflowing from occurring, but also can minimize vehicle delay time is obtained. The establishing method and working method have the advantage that the traffic overflowing phenomenon is effectively prevented from occurring at the morning and evening peak periods of city primary roads.

The invention discloses an urban express delivering method based on a vehicle self-organized network. The method comprises: clustering delivery areas into k blocks by utilizing urban roads and transportation data; calculating link information among blocks by utilizing a historical vehicle track; performing topology modeling according to the blocks and the link information, and establishing a weighted directed graph to draw an urban in-vehicle network; searching the weighted directed graph to obtain a sub-graph of a starting point and an end point of an express piece; obtaining an express delivering path p with minimum weight in the sub-graph by utilizing a Dijkstra shortest path algorithm, wherein the path is an optimum express delivering path; and finally, delivering the express piece according to the path p. According to the delivering mode, the cost of express delivery is greatly reduced; and urban public transport vehicles instead of express transport vehicles are utilized, so that the situation of urban traffic congestion is improved.

A method of sustaining live interactive streaming of multimedia content from a transmitter to a receiver through a communication network exhibiting channel congestion. The method comprises: transmitting the multimedia content encoded in a first encoding scheme characterized by a high bit rate; receiving and reconstructing the transmitted multimedia content through a dynamic switch lag buffer; measuring, recording and analyzing an incoming packet delay at the receiver; predicting a packet delay based on the analyzed incoming packet delay; predicting an increase in channel congestion by detecting an increase in the predicted packet delay, and notifying the transmitter thereof, and transmitting thereupon the multimedia content using a second encoding scheme characterized by a low bit rate. Continuous live interactive streaming of the multimedia content is sustained despite the increase in channel congestion by a fast and visually seamless switching between the encoding schemes, the timely prediction and the switch lag buffer.

An on-board call access control method is characterized in that for access request, firstly judge the type of call: if a switching call, determine the switching call service is low-priority or high-priority, and implement the switching call request access process on the low-priority or the high-priority call service; if a new call, determine the new call service is low-priority or high-priority, and implement the new call request access process on the low-priority or the high-priority call service. Under the circumstances of ensuring the indexes of handoff failure probability of satellite systems, the new call-blocking probability, the link bandwidth utilization and so on, the invention fully considers the satisfaction of users and the influence of network-load changes on the system performances, effectively ensures the QOS requirement of mobile satellites, and improves comprehensive properties and robustness of satellite systems.

The invention provides a single-point intersection signal timing parameter optimization method based on bayonet data. Existing urban intersection signal control is mostly based on profile data of an annular coil detector arranged behind a parking line, and if the detector is badly damaged, travel time, delay and other traffic flow evaluation parameters used for traffic control can not be obtained. According to the basic idea of the method, a bayonet electronic police system is used for obtaining vehicle license plate recognition data, travel time and delay of all phase traffic flow from an upstream intersection to a current intersection are obtained by matching upstream vehicle license plates and downstream vehicle license plates, a signal cycle is obtained through phase saturation degree optimization, and effective green light time of each phase is obtained through optimization according to delay change conditions of different phases. The method for intersection signal timing by means of existing electronic police data is provided, and accordingly investment for arranging intersection detectors can be reduced, and intersection traffic control efficiency is effectively improved.

A method of controlling a data unit sender is described. A flow control procedure for controlling the flow of data units sent by said data unit sender is conducted in dependence on acknowledgement messages from the receiver The flow control procedure utilizes (S103) at least one output limiting parameter (olp; cwnd) for placing a limit on the data units sender's current data send rate. A procedure is provided for detecting (S110) a data unit loss indication, in response to the detection of a data unit loss indication, performing (S311) a retransmission, subsequent to said retransmission (S311) waiting (S312) for an acceptable acknowledgment message carrying the sequence position identifier indicative of said data unit indicated as potentially having been lost, and distinguishing (S317) whether said acceptable acknowledgment message relates to an original transmission, and in response to distinguishing that said acceptable acknowledgment message does not relate to said original transmission, performing (S318) a congestion response step, while in response to distinguishing that said acceptable acknowledgment message relates to said original transmission, said output limiting parameter is adapted (S319) based on one or more duplicate acknowledgment messages received since receiving the last acceptable acknowledgment message that precedes the acceptable acknowledgment message carrying the sequence position identifier indicative of said data unit indicated as potentially having been lost.

The invention discloses a method and a system for realizing downlink Qos (Quality of Service) of family gateway, which provides a plurality of downlink Qos configuration strategy and configuration interface of managing media for network management, therefore the network management can adjust the current downlink Qos configuration strategy through the configuration strategy of managing media according to networking condition of current network, and enables the post-adjustment downlink Qos configuration strategy through a Qos configuration management module. When the data flow overloads or network congestion occurs, according to the technical scheme of the invention, the downlink Qos configuration strategy is executed, which can guarantee quality of critical service effectively, improve use experience of users, and simultaneously improve state of network congestion.

The invention relates to a high-power hydraulic drive fracturing pump system which can meet the requirement of high flow and high pressure of a large fracturing pump and can simultaneously solve the problem that a fracturing truck set is difficult to arrange in a well site due to too many vehicles. The technical scheme of the high-power hydraulic drive fracturing pump system is as follows: fracturing pump cylinders and power cylinders are connected in series through bolts; plungers are mounted into the fracturing pump cylinders and the power cylinders; the fracturing pump cylinders are connected with a fracturing fluid inlet manifold and a fracturing fluid outlet manifold; liquid inlet and outlet ports of the power cylinders are connected with a reversing assembly, and the reversing assembly is connected with an oil inlet pipe and an oil return pipe; the oil inlet pipe is connected with hydraulic oil pumps, the oil return pipe is connected with a cooler inlet, and a cooler outlet is connected with a hydraulic line for an oil tank; the oil tank is connected with the hydraulic line for the oil tank; and the hydraulic oil pumps are connected with engines through transmission cases. According to the high-power hydraulic drive fracturing pump system, the power and the discharge capacity of a single fracturing pump truck can be improved by 4-7 times, and accordingly, the number of the fracturing pump trucks is reduced; and a cooler, the oil tank and the hydraulic oil pumps can be arranged outside a well, thereby facilitating the arrangement of the fracturing truck set in the well site.

The invention provides an intelligent gate system and a control method, which are used for toll collection systems in highways, subways, and other similar scenes. Entrance gates and Exit gates are used to acquire passing stations of users, and toll collection is carried out according to the passing stations, and then by adopting an automatic charging mode, automatic fee paying is realized. The queuing and fee-paying time of the users is greatly saved, and the time costs of the users are reduced, and in addition, a lot of manpower costs are saved for related departments, and costs of ticket vending machines, magnetic cards, and electronic labels are saved, and therefore by popularizing the intelligent gate system and the control method, the congestion conditions of the highways and the subways are obviously improved.

The invention discloses a high efficiency storing method for the coding digit of an LDPC coder based on an FPGA. In the method, the coding digit and external information (or channel information) share one storage block, thereby effectively reducing the requirement of the coder to the quantity of the storage resources; and the coding digit and the external information can be withdrawn when reading the storage block. Therefore, a check equation computational unit PCU and a check node update unit CNU can share one group of address information, and the PCU does not need additional address generation units; and finally, the design method of a step thinning production line is adopted to realize process units VNU, CNU and PCU, thereby effectively reducing the key path delay of the coder and providing a necessary safeguard to improve the throughput of the LDPC coder. When realizing the method with the FPGA, the invention not only can save a large number of the resources for respectively storing the digit and the logic resources for generating addresses which are needed by the PCU, but also can improve the throughput of the coders.

The invention discloses a statistical method for the traffic flow based on moving vehicle detection, and relates to the field of computer vision. The statistical method comprises the steps of firstly performing image preprocessing by using a multi-scale morphological operator, then detecting a vehicle target by combining background real-time update, background difference and the edge gradient difference, and thus acquiring a binary image of the vehicle target; and finally performing single-lane or multi-lane traffic flow statistics through dual thresholds and state transition of a lane detection coil according the binary image. According to the method, the traffic flow of a single lane or multiple lanes can be worked out effectively and quickly, traffic lights can be enabled to change the time of red and green lights according to the current traffic flow, the utilization rate of urban transportation is improved, and a problem of urban vehicle congestion is improved.

A bank card binding-based quick refueling payment method disclosed by the present invention comprises the steps that: a user enables a WeChat client to be correlated with a bank card management system, and the correlated bank card management system supports the automatic fee deduction businesses within the set amount of money; the user edits a refueling order via the WeChat client, and pushes to a refueling payment platform; a vehicle identification system identifies the licence plate of the user, and pushes the refueling order edited by the user to a refueling machine; a refueling worker checks and verifies the refueling order on the refueling machine, and refuels once verifying successfully; after the refueling is finished, the WeChat client of the user automatically generates a refueling payment order, and the user pays automatically via the bank card management system correlated with the WeChat client. According to the present invention, by binding a bank card and the WeChat client, a quick refueling payment function is provided, the automatic payment and fee deduction can be realized, and a conventional multiple verification mode is avoided, the payment rate is increased, a peak congestion phenomenon of a gasoline station is improved greatly, and the service level of the gasoline station is improved.

The invention discloses a load balancing routing method suitable for an air-ground integrated network. The method specifically includes the following steps that: a new routing criterion formula is formed, then the formula is used to measure the links of the air-ground integrated network, so that link weights can be obtained and are saved to a link weight list; neighboring nodes exchange respective link weight lists with each other constantly, so that each node in the air-ground integrated network can obtain the weights of the links of the whole network and selects three routes for arriving at any other node from a whole-network link weight list; and a route with highest transition probability is selected as a working route to transmit data packets. The working route selected by the using the method of the invention is close to global optimum; and the working path can be adjusted adaptively according to the variation of the load of the air-ground integrated network, and therefore, the possibility of network congestion can be reduced.