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115results about How to "Reduce scheduling costs" patented technology

Method for constraining workflow scheduling in cloud environment based on ant colony optimization algorithm through deadline

The invention discloses a method for constraining workflow scheduling in a cloud environment based on the ant colony optimization algorithm through deadline. The method comprises the steps: employing an ant colony system with a candidate list; respectively searching a workflow scheduling scheme in the cloud environment through a plurality of ants; carrying out the communication of a workflow scheduling result among the ants in a pheromone mode, thereby guiding the deciding of the subsequent search direction of ants and the workflow scheduling scheme. Compared with a conventional workflow scheduling method, the method can reduce the cost of the workflow scheduling in the cloud environment and improves the service quality for cloud users under the condition of meeting the deadline time QoS requirements of users.
Owner:CENT SOUTH UNIV

Public bicycle renting forecasting method based on multi-source data fusion

The invention discloses a public bicycle renting forecasting method based on multi-source data fusion. According to the method, historical data about public bicycle renting / returning records, weather, temperature, holidays, festivals and the like are cleaned and preprocessed, and training datasets are acquired; the datasets are classified with a clustering algorithm, and different renting modes of public bicycles are divided; the classified datasets are used to establish a Bayesian classifier used for forecasting the renting modes according to conditions of holidays, festivals, weather and air temperature of one day in the future; a self-adaptive particle swarm neural network model corresponding to each mode is trained for different modes of datasets respectively; finally, the renting mode of one day is forecasted by the aid of the Bayesian classifier, a corresponding particle swarm neural network model is selected to forecast the renting law of public bicycles. The forecasting accuracy is high, the operation speed is high, reference basis is provided for bicycle renting and returning by a user, the duration time of the unbalanced state of a public bicycle station is shortened, and the users' satisfaction is improved.
Owner:HANGZHOU DIANZI UNIV

Shared vehicle scheduling method and system

PendingCN107545725ARealize timely scheduling and deploymentLow costRoad vehicles traffic controlCurrent timeReal-time computing
The present invention provides a shared vehicle scheduling method and system. The method comprises the steps that: a server generates a scheduling task according to a shared vehicle partitioning situation of a shared vehicle distribution area and a vehicle scheduling time period to which the current time belongs; a client selects a target task; a target vehicle located at a departure point of thetarget task is unlocked; after the target vehicle is locked again, the server generates target task ending information and sends the target task ending information to the client. According to the method and the system, the scheduling task can be released according to a dynamic vehicle distribution condition, thus a terminal user is guided to dispatch over-centralized or over-distributed vehicles to other sites so as to realize the 'rebalancing' of the shared vehicles, the vehicle scheduling time period to which a current time belongs can be considered in releasing the scheduling task, thus theconflict between the scheduling task and traffic 'tide' is avoided, and thus the terminal user can be guided to schedule the vehicle towards the direction of 'inverse tide'.
Owner:顾泰来 +1

Multi-agricultural-machine cooperative operation remote management scheduling method based on improved ant colony algorithm

The invention relates to a multi-machine cooperative operation remote management scheduling method based on an improved ant colony algorithm. The method comprises the steps: task planning and path planning, and task planning is divided into task distribution and task sequence optimization. Firstly, according to initial task information and agricultural machinery information in a farmland operationenvironment, and according to a supply and demand matching principle of agricultural machinery and tasks, an optimal task allocation scheme is obtained by improving an ant colony algorithm; secondly,according to the optimal task allocation scheme, performing task sequence optimization on multiple tasks allocated to each agricultural machine through an improved ant colony algorithm to obtain an optimal task sequence scheme; and finally, establishing an environment map model according to the initial environment information, performing path planning through an improved ant colony algorithm according to the optimal task allocation scheme, the optimal task sequence scheme, the path cost between the dynamic and static obstacles and the task plot and the path smoothing factor, obtaining an optimal path planning scheme, and seeking a collision-free optimal path.
Owner:CHINA AGRI UNIV

Requirement responding scheduling method for wind power uncertainty

The invention relates to a requirement responding scheduling method for wind power uncertainty. The method comprises a scheduling trading center predicts a benchmark load curve and a wind power generation curve and releases scheduling information to load agents; the load agents perform learning and decision making according to scheduling requirement information, system operation information and historical trading information and formulate bidding strategies and reports to strategies to the scheduling trading center; the scheduling trading center performs optimal scheduling on generation and consumption power resources with the lowest scheduling cost as the target after obtaining load agent bidding information and generator set calling cost information and sends scheduling instructions and final compensation price to the load agent and the generator set; the load agents adjust consumption power by means of electricity price adjusting and stimulation with the lowest scheduling cost as the target after obtaining final scheduling instructions. According to the method, an effective way is provided for wide-area distributed medium and small volume load resources to participate in system scheduling, the wind power volume load admitting capacity is improved, and the scheduling cost is reduced.
Owner:STATE GRID CORP OF CHINA +2

Track-type parking device for public bicycles

The invention provides a track-type parking device for public bicycles. According to the track-type depositing device, locking devices are arranged on the sliding track in a sliding manner; inserted pins on the bases of the locking devices are matched with insertion holes in the sliding track; tracks are arranged on two sides of the baseplate of the sliding track; wheels walking on the tracks are hinged to the lower surfaces of the bases of the locking devices; the concave surfaces the wheels are matched with the convex surfaces of the tracks; sucking disk type electromagnets are connected with a power supply and a switch in series through a conducting wire; the sucking disk type electromagnets are fixed on the bases of the locking device; through holes are formed in the bases; sliding bars arranged at the bottom ends of the sucking disk type electromagnets penetrate the through holes; the sliding bars are sleeved with springs; inserted pin bodies attracted by the sucking disk type electromagnets are arranged at the bottom end of the sliding bar; slideways matched with the sliding bars are arranged on the inserted pin bodies; the inserted pin bodies are matched with the insertion holes in the sliding tracks. The track-type deposit device can be flexibly increased or decreased according to the practical rent amount change of a bicycle renting station and the renting and returning efficiency of public bicycles is efficiently improved.
Owner:ZHEJIANG UNIV OF TECH

Taxi scheduling method and system based on deep reinforcement learning

The invention relates to a taxi scheduling method and system based on deep reinforcement learning. The system comprises an area construction module, a demand prediction module, a vehicle scheduling module and a simulator. The method comprises the steps of S1 forming a regional network; S2 predicting the number of orders that will appear in any area at any time; S3 calculating the total vehicle supply of one area; obtaining a demand / supply state of each area; and S4 inputting the states of the area where any idle vehicle is located and the neighbor area into a trained taxi scheduling model to obtain a scheduling strategy of the vehicle, and determining whether the vehicle is continuously left in the local area or scheduled to the neighbor area specified by the system. According to the invention, idle taxis are dispatched, the success rate of order matching is increased, the waiting time of passengers is reduced, and the utilization rate of taxis is improved.
Owner:SHENZHEN UNIV

Wind power forecast error-oriented demand response multi-time scale scheduling method

ActiveCN107194514AReduce scheduling costsBalancing real-time wind power fluctuationsForecastingData setLoad forecasting
The invention discloses a wind power forecast error-oriented demand response multi-time scale scheduling method. The method comprises the following steps of: firstly setting a real-time electricity price of the next day according to a wind power forecasted value and a load forecasted value of the current day, acquiring electricity utilization data set by a PDR user according to the electricity price, and making an operation plan of a unit in the next day by the PDR user; in the current day, forecasting wind power output H hours early, forming a new real-time electricity price according to a formula (as shown in the specification), freely selecting, by the PDR user, whether to respond scheduling according to the new electricity price to adjust the electricity utilization plan in the day, and recollecting a PDR electricity utilization plan by a power grid through a data acquisition system; and finally carrying out real-time wind power forecast, if the formula (as shown in the specification) is not 0, carrying out IDR and conventional unit scheduling, and when constraints are not satisfied, selecting to put into standby application (the load cannot be satisfied) or abandon the wind (the system electricity is surplus). The method is capable of effectively carrying out scheduling balance on different-time scale wind power forecast errors by utilizing different types of demand response characteristics.
Owner:CHONGQING UNIV

Distributed intelligent power grid economic dispatching method based on finite time consistency under directed topology

The invention discloses a distributed intelligent power grid economic dispatching method based on finite time consistency under directed topology, and the method comprises the following steps: carrying out mathematical modeling which comprises a total cost objective function and a supply and demand balance and generator power limit constraint function of all generators under power grid economic dispatching; calculating the optimal cost increment of the generator set; calculating the final output power of each generator according to the parameters of each generator of the generator set; and re-determining the new optimal cost increment of the generator set. According to the invention, the intelligent power grid system can complete the economic dispatching process within limited time; the economic dispatching time of the intelligent power grid is shortened, the dispatching cost is greatly reduced, the modern intelligent power grid dispatching requirement is met, the proposed algorithm considers the economic dispatching process under directed communication topology according to the characteristic of difference of information obtained between generators in an actual intelligent power grid system, and the applicability is wider.
Owner:NANJING UNIV OF POSTS & TELECOMM

Steelmaking and continuous casting scheduling method based on artificial bee colony (ABC)

The invention discloses a steelmaking and continuous casting scheduling method based on an artificial bee colony (ABC). The method remains a framework of the ABC (comprising an employed bee phase, an observation bee phase and a scouter bee phase), and is improved by combining a JADE algorithm. At the employed bee phase, a search strategy of the JADE is used for updating individuals in one population, and the diversity of the population can be increased by adopting an external archiving mechanism of the JADE; at the observation bee phase, updating operation of differential solution, and archiving composed of the current population is increased on the basis of a previous search strategy of the ABC; and at the scouter bee phase, the previous search strategy of the ABC at the phase is adopted. With the adoption of the method, the convergence of the population is accelerated under the condition of guaranteeing the diversity of the population, and an ideal scheduling result can be generated in relatively short time, so that the aims that the waiting time of workpieces in a steelmaking and continuous casting process and the machining cost is reduced are realized.
Owner:CENT SOUTH UNIV

Ship lockage optimization dispatching system and method

PendingCN106447096AFast gateGate safetyForecastingThree stageComputer terminal
The invention discloses a ship lockage optimization dispatching system and method, and the system comprises a mobile terminal located at a ship end, a background server which communicates with the mobile terminal through a network and is located at a ship lock end, and a display terminal and an operation terminal which are respectively connected with the background server and used by a dispatcher for watching and dispatching arrangement. The mobile terminal is used for transmitting ship information and lockage reporting information to the background server after the ship arrives in a lock region, and receives and reminds dispatching optimization information transmitted by the background server. The background server is used for calculating the time of a lockage reporting ship in passing each of lockage stages according to the ship information and the lockage reporting information, and outputting the time needed by the former three stages, wherein the stages are ordered according to the lockage sequence and the occupied time from the big to the small. The display terminal is used for displaying the time needed by each stage. The operation terminal is used by the dispatcher for inputting the dispatching optimization information to the background server and then transmitting the dispatching optimization information to the mobile terminal. The system achieves the quick and safe lockage of the ship, and is high in recognition rate of the ship.
Owner:JIANGSU PROVINCIAL COMM PLANNING & DESIGN INST

Industrial park comprehensive demand response scheduling method based on multi-energy cooperation

The invention discloses an industrial park comprehensive demand response scheduling method based on multi-energy cooperation. The method comprises steps that an operator executes day-ahead load prediction and reports the day-ahead load prediction to ISO or bids to the power market; the operator obtains a load reduction index from the ISO or the market clearing result; the operator determines a scheduling plan by solving a comprehensive demand response optimization model and informs a consumer and the CCHP of the result; if any consumer or CCHP cannot respond according to an instruction, the operator rearranges the scheduling plan, otherwise, the response is executed; on the second day, the consumer adjusts the load demand, reduces the power load or increases the heat and cold loads at theappointed time, and the CCHP correspondingly adjusts the yield to balance the load. The method is advantaged in that various interactive modes such as interruptible load, multi-energy demand coupling,multi-energy supply and demand interaction and the like are provided, the selectable space of a user is increased, scheduling means of the operator is increased, comprehensive energy consumption management is realized, and scheduling cost is reduced.
Owner:GUANGZHOU POWER SUPPLY CO LTD +1
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