585results about How to "Realize a reasonable distribution" patented technology

The invention discloses a Map/Reduce type mass data processing platform-orientated job scheduling method belonging to the field of mass data processing, and particularly relates to job scheduling and resource management in a Map/Reduce type mass data processing platform. The invention provides a Map/reduce job scheduling method based on Reduce task resource preemption, which realizes that when a Reduce task is in an idle waiting state, computing resources occupied by the Reduce task are distributed to a Map task for being used. The Map/Reduce type mass data processing platform-orientated job scheduling method mainly comprises: preemptible resources, a job scheduling module, an application management module, a task executing module, a node management module, a task suspending and recovering method, and a preemptible-resource-orientated job scheduling method. The Map/Reduce type mass data processing platform-orientated job scheduling method can be applied to job scheduling and resource management of a data center, and realizes reasonable distribution of computing resources of the data center by preemption scheduling of a Reduce task in a Map/Reduce job, thereby improving the computing resource utilization rate and shortening the job running time.

Embodiments of the invention disclose an order distribution method and apparatus, computer equipment, and a storage medium. The method includes: screening candidate order deliverymen in accordance with preset conditions according to real-time order information; calculating delivery recommendation values of the candidate order deliverymen if the number of the candidate order deliverymen is greaterthan a preset threshold; and performing ranking according to the delivery recommendation values to determine a target order deliveryman, and pushing order distribution information to the target orderdeliveryman. According to the method and apparatus, the computer equipment, and the storage medium, the problem of low delivery quality caused by lack of consideration of historical deliveryman delivery records, credits and order completion rates is solved, reasonable distribution of orders is realized, and the user experience and the distribution efficiency are enhanced.

The invention discloses an order processing method and a device. The order processing method comprises steps of obtaining a new order, generating an available order delivery sequence of each delivery unit on the basis of the available order information of each delivery unit for delivering the article related to the order, generating time changing information and delivery distance changing information which are related to a delivery unit execution order after the new order is inserted into the available order delivery sequence for each delivery unit, and choosing one delivery unit from the plurality of delivery units to execute the new order on the basis of the time changing information and the delivery distance changing information. The order processing method realizes the order reasonable distribution and improves the efficiency of delivering articles.

The invention discloses a city bus operation coordinating method and device based on time variant passenger flows, belonging to the technical field of city bus operation management. In the device, bus dynamic passenger flow and bus real-time GPS (global position system) data are utilized; based on the reality that the bus operation is randomly disturbed by real-time road conditions, and by taking operator cost, crowding mileage proportion and average transfer passenger waiting time as targets, a multivariable operation coordinating total expression based on time variant data is established; and an optimal dynamic operation coordinating scheme is solved by a non-dominated sorting genetic algorithm based on fast classification. The method and device provided by the invention are favorable for improving the resource utilization and effective linkage of city bus systems.

The invention provides a pollution source management system based on a geographic information system (GIS) technology and a one-dimensional water quality model. The pollution source management system comprises a basic geographic database, a water quality monitoring database, a pollution source monitoring database, a water quality model predicting module, a statistical analysis module and a geographic information system module. The invention also provides an operation method of the pollution source management system based on the GIS technology and the one-dimensional water quality model; and by means of the operation method, the docking between a geographic information system and a management information system is realized to complete the effective management of a large amount of environmental information, analyze the changes in the environmental pollutants, and realize the visualization of a regional environmental pollution status, and thus, the execution of the water environment planning and decision is facilitated.

A moment distribution method for a rapid maneuvering satellite based on a mixed actuating mechanism relates to the technical field of spacecraft attitude control and solves the problems that the precision is low due to the fact that single gimbal control moment gyroscopes are in a dead zone and the actuating force is weakened after the satellite taking single gimbal control moment gyroscopes and flywheels as actuating mechanisms is maneuvered rapidly and maneuvered. The realizing process of the moment distribution is as follows: obtaining the gimbal angular speed distributed to the single gimbal control moment gyroscopes and the angular acceleration speed distributed to the flywheels, and assigning value to the optimized gimbal angular speed, meanwhile, judging whether each single gimbal control moment gyroscope is in the dead zone or not, if so, stopping using the single gimbal control moment gyroscope, otherwise, returning to the step two to obtain a new gimbal angular speed, comparing the new gimbal angular speed with the optimized gimbal angular speed, if the new gimbal angular speed and the optimized gimbal angular speed are different, storing the new gimbal angular speed into the optimized gimbal angular speed and returning to the step two; and if the new gimbal angular speed and the optimized gimbal angular speed are the same, assigning the new gimbal angular speed to the final gimbal angular speed of the single gimbal control moment gyroscope, and assigning the angular acceleration speed of the flywheels to the final angular acceleratioin speed of the flywheels. According to the moment distribution method, the satellite attitude can be adjusted.

The invention relates to an intelligent stage lighting cloud terminal controlling system. The intelligent stage lighting cloud terminal controlling system comprises a large dimming cabinet, a network transmission device, a cloud decoder and a cloud terminal distributor. The large dimming cabinet receives parameter information of light, codes and packs the parameter information, and then sends the parameter information to the cloud decoder through the network transmission device, the cloud decoder unpacks and decodes the received information, and then transmits the received information to the cloud terminal distributor, the cloud terminal distributor is used for controlling each stage light, stage lights send working state information to the cloud decoder through the cloud terminal distributor, the cloud decoder codes and packs the working states, and then sends the working states of the stage lights to the large dimming cabinet through the network transmission device, and the large dimming cabinet conducts unpacking and decoding on the state information and then conducts changing, storing and displaying on the state information. The intelligent stage lighting cloud terminal controlling system can monitor working states of the stage lights in real time, circuit information can be set in a remote mode, and safety is improved.

The invention discloses an electric car charging dispatching method and system based on the Internet of Things. The dispatching system comprises a sensing layer, a network layer and an application layer. The sensing layer comprises an electric car sensing component for obtaining electric car preference data information and a charging station sensing component for obtaining charging station preference data information. The network layer is a data center server of the Internet of Things and is used for data transmission between the sensing layer and the application layer. The application layer is used for computing dispatching results according to data information collected by the sensing layer and sending the dispatching results to the network layer. The whole system is established based on three models of the Internet of Things, the interconnection feature of the Internet is fully used, a dispatching result generated by a used Gale-Shapley algorithm has the stability on Pareto efficiency, so that best matching of an electric car and a charging station is achieved, electric car dispatching is carried out efficiently in order, therefore, the queuing waiting time of electric cars is shortened, and charging station resources are used reasonably.

The invention discloses a denormalization strategy selection method on a data set and particularly relates to a system for reasonably managing establishment, allocation and withdrawing of the software licenses in the enterprise internal network range. The software license management system comprises a main server, agent servers and clients. The software license management system has the advantages that through the mechanism that a part of clients share a small part of software licenses, the demanded quantity of software licenses of an enterprise is effectively reduced, the agent servers are arranged in all departments to manage the issuing of the software licenses of the departments, meanwhile, the main server correspondingly controls the number of the software licenses on each agent server, reasonable allocation of the software licenses in the enterprise is achieved, tasks of allocating the software licenses are distributed to all the agent servers through a layering idea, therefore, the load of the main server can be effectively reduced, meanwhile, flow of the enterprise internal network is saved, and excessive system communication information is prevented from flowing into an enterprise backbone network.

The embodiment of the invention discloses a video transcoding method and device, a server and a storage medium. The method comprises the following steps: according to picture coding characteristics ofa video to be transcoded, determining a transcoding factor selected by the video to be transcoded when the video to be transcoded reaches a subjective quality index specified by a gear to be transcoded after being transcoded at different gears to be transcoded; and transcoding the to-be-transcoded video by adopting different to-be-transcoded rate gears and the corresponding transcoding factors. The embodiment of the invention provides a technical scheme. Setting the same subjective quality index for the video to be transcoded under the same code rate gear; the effect of transcoding the videoto be transcoded according to the predicted transcoding factor is compared with a specified subjective quality index; the accuracy of the transcoding factors selected under different code rate gears is guaranteed, then the different to-be-transcoded rate gears and the corresponding transcoding factors are adopted to carry out multi-code-rate transcoding on the to-be-transcoded video, reasonable distribution of code rates is achieved, and therefore unnecessary code rate waste is avoided.

The invention sets forth a software defined network (SDN) link fault recovery method based on in-band control, and belongs to the technical field of communication networks. Firstly, an SDN controller acquires the whole network topology by using an LLDP (Link Layer Discovery Protocol) and generates a control network, calculates a backup path for a link on the control network and transmits the path to a corresponding group table. Then, once the link has a fault, a switch sends fault information to the controller, the switch is triggered to feed real-time traffic information of the network back to the controller, and the controller updates the network topology and the traffic information. Finally, according to the current network topology and traffic information, the sum of resource consumption and feed of the path is calculated, thus an optimal recovery path is selected and a flow table is transmitted to the corresponding switch to realize recovery of the link fault. The system recovers control flow by adopting the backup path and adaptively recovers data flow in an in-band control network, thereby realizing reasonable allocation of link resources during fault recovery and improving the overall performance of the network.

The invention relates to a direct current microgrid, specifically relates to a power pool-based dual-layer bus direct microgrid and a control method therefor, and solves the problems of high energy conversion loss and low system operating efficiency of the existing single-bus direct current microgrid, and high probability of power interference and poor system operating economy of the existing dual-bus direct current microgrid. The power pool-based dual-layer bus direct microgrid comprises an energy storage voltage regulation system, a direct current sub grid I and a direct current sub grid II, wherein the energy storage voltage regulation system comprises a power pool, a lithium battery pack, a DC/DC converter I, a DC/DC converter II and a DC/DC converter III; the power pool comprises a supercapacitor and a middle bus in parallel; the direct current sub grid I comprises a photovoltaic power generation unit I, a direct current load I and a direct current bus I; the direct current sub grid II comprises a photovoltaic power generation unit II, a direct current load II and a direct current bus II; and the direct current sub grid I and the direct current sub grid II have different voltage levels. The power pool-based dual-layer bus direct microgrid is applicable to a variety of fields.

Embodiments of the invention provide a conflict management method and system for multiple mobile robots, and belong to the field of robots. The conflict management method for the multiple mobile robots includes the steps of acquiring respective current positions and planned paths of multiple mobile robots; establishing, according to the current positions and the planned paths of the multiple mobile robots, a node resource table in which a corresponding relationship between mobile robot IDs, node area IDs and occupation time is recorded, wherein any two of the multiple mobile robot IDs do not collectively correspond to the same occupation time under the same node area ID in the node resource table; and controlling the multiple mobile robots to occupy node areas corresponding to the node area IDs respectively according to the occupation time corresponding to the respective mobile robot IDs in the node resource table. Therefore, the problem of path conflict and collision of the mobile robots when executing the planned paths is eliminated, and the transportation efficiency of the mobile robots in the space is optimized.

The invention discloses a garbage collection method based on a SSD-SMR mixed key value storage system. The garbage collection method comprises the following steps: dividing garbage collection operation into active garbage collection operation and passive garbage collection operation by adopting a two-stage threshold value according to an SSD or an idle space proportion in an SMR; when the SSD or the SMR needs to recycle the garbage, selecting a corresponding recycling block or a recycling belt according to the weight of the SSD or the SMR or the effective data proportion of the SSD or the SMR;Selecting a migration target of the effective data in the recovery block or the recovery belt according to the cold and hot judgment of the data in the garbage recovery process and the garbage recovery mode; when the data is hot data, migrating valid data into an SSD block, and when the data is cold data, migrating the data into an SMR band; and when garbage collection is completed, information in the recycling block or the recycling belt is updated, meanwhile, key value mapping table information is updated, and garbage collection is completed. According to the method, the system efficiency is improved, the system resource consumption is reduced, the system performance is comprehensively optimized and improved, and a new scheme is provided for constructing an economic and efficient storage system.

The invention discloses a method for the broadcast authentication of a wireless sensor network based on an automaton and a game of life, which aims at the problems of limitations to coverage and special network traffic distribution of a base station in the authentication of the wireless sensor network which has relatively more hidden dangers due to own characteristics. By the method, the coverageof the base station can be expanded to realize the broadcast of nodes of the whole network, and the distributional pattern of the network traffic of the wireless sensor network (WSN) is simulated. The broadcast authentication of the wireless sensor network is realized mainly by combining a plurality of ways such as an improved deterministic finite automaton, a clustering algorithm, a game of lifealgorithm and the like. A specific technical scheme and specific steps and flows are designed. The method is remarkably distinguished from the conventional broadcast authentication method used for the WSN, and is advanced in the aspects of communication ranges of nodes of the base station, the rational allocation of node energy in the network, the simulation of a network traffic pattern, and the like.

The invention discloses a grid-connected photovoltaic inverter device and a control method for improving conversion efficiency thereof and belongs to the field of inverter control. The device comprises N grid-connected photovoltaic inverters, wherein a voltage outer loop control circuit (3) of each grid-connected photovoltaic inverter comprises a bus voltage sampling circuit (301), first and second bus voltage regulators (302 and 303), first and second amplitude limiting circuits (304 and 305) and three voltage loops. The control method comprises that: given voltage in different grades is respectively set for the bus voltage regulators of the plurality of grid-connected inverters; along with the increase of the input power, the inverters work in turn according to the given voltage, and the light load efficiency is improved by reducing the number of the operating inverters under the condition of light load; and different set values and output amplitude limiting values are applied to a linear bus voltage regulator of a single grid-connected inverter so as to ensure that the inverters can operate at the highest efficiency preferentially under different power grades, and the overall efficiency of the system is improved.

Provided are a resource configuration method and device. The method comprises: configuring a physical resource block which can be used for transmitting an enhanced physical downlink control channel (E-PDCCH) in a cell using a resource block group (RBG) as a unit through a distributed resource allocation solution (101); according to the configured physical resource block, configuring a virtual resource block which is used for corresponding to E-PDCCH transmission (102); and in accordance with the configured virtual resource block and the configured physical resource block, conducting E-PDCCH transmission in the cell (103). The present invention can be applied to reduce the scheduling limitation on the PDSCH resource allocation which is generated during E-PDCCH resource allocation, thereby increasing the resource allocation efficiency.

The invention provides an adaptive layered hierarchical path tracking control method of an automatic driving automobile. The method comprises following steps of a), establishing a rectangular coordinate system of an automobile body; b), establishing a path tracking control system model; c), establishing a frictional force model between tires and the road face; d), establishing a wheel slippage ration equation; e), establishing a control model; and f), establishing an adaptive layered hierarchical control framework. The adaptive layered hierarchical framework comprises an upper layer controller, a middle layer controller and a lower layer controller. According to the invention, through control objectives of stabilization, optimization, parameter estimation and the like, a path tracking control problem of the automatic driving automobile is solved; the wheel united slippage ratio is dynamically optimized; the sideslip of the wheels is restrained; proper distribution of tire force and torque of an over-actuation vehicle is achieved; brake control and frictional parameter estimation of independent wheels under unknown and non-symmetrical road face friction conditions are achieved; convergence of the frictional parameters is ensured; and ideal path tracking control of the automatic driving automobile is achieved.

The invention provides an additive manufacturing device and method for a plasma arc gradient material of a bypass hot wire consumable electrode. The device consists of an MIG welding power supply, a bypass hot wire consumable electrode plasma arc welding gun, an IGBT shunt controller, a workpiece, a current sensor and a current controller, wherein the MIG welding power supply, the bypass hot wireconsumable electrode plasma arc welding gun, the workpiece and the current sensor define a closed circuit; the MIG welding power supply, the bypass hot wire consumable electrode plasma arc welding gun, the workpiece, the IGBT shunt controller and the current controller define a closed circuit. The additive manufacturing device efficiently improves conventional electric arc welding basically, is controllable in heat input, is high in welding electric arc restraint intensity, and has the characteristics of low cost, high efficiency, high stability and the like of electric arc additive manufacturing.

Embodiments of the invention disclose a management method and device supporting multiple SIM cards to share a RF processor. The method comprises the following steps: when receiving a resource request sent by a first baseband communication processor, judging whether the RF processor is authorized to be used by a second baseband communication processor within at least a part of time period of a starting and ending time period of the first baseband communication processor when needing to use the RF processor, if so, comparing whether the priority of a type of a first communication service needing to be executed by the first baseband communication processor is larger than the priority of the type of a second communication service needing to be executed by the second baseband communication processor, and if so, sending an authorization message to the first baseband communication processor, and notifying the second baseband communication processor to stop executing the second communication service. Therefore, by implementing the management method and device disclosed by the invention, the right of use of the RF processor can be reasonably allocated according to the priority of the types of the communication services.

The invention discloses a coal mining machine which comprises at least three driving parts (26) and a traveling box, wherein the driving parts (26) are connected with the traveling box; and the pin gear of each driving part (26) is engaged with the pin rail of a scraper conveyor. The traction force distribution of the coal mining machine is reasonable. On the premise of satisfying the demands of the coal mining machine for large traction force, the working pressure between the pin gear of the coal mining machine and the pin rail of the scraper conveyor is reduced, and the stability of the coal mining machine is enhanced. The invention also discloses an integrated coal mining facility comprising the coal mining machine.