32results about How to "Make reasonable" patented technology

The embodiment of the present invention provides a computer-implemented method for assisting price determination based on data analysis. The method includes: providing each expected price of the sales target to a preset price and sales model, wherein the price and sales model is based on the characteristics that affect sales. The information is established and trained by using the sales target historical influence sales feature information; the expected sales volume corresponding to each expected price is determined according to the output of the price sales model, and an expected price and its corresponding expected sales volume form an expected price sales volume pair; Determine the sales target price according to the expected price and sales volume matching and the actual sales volume demand. The expected sales volume corresponding to the expected price is determined by using the price and sales model trained based on the historical sales feature information of the sales target, which is conducive to formulating a more reasonable price for the sales target in a timely and low-cost manner. In addition, the embodiments of the present invention also provide a medium, an apparatus, and a computing device.

The invention relates to an intelligent road maintenance system. The system comprises a maintenance data center, a technical condition management subsystem, a maintenance engineering management subsystem and a big data analysis and decision support subsystem; the maintenance data center comprises a road network data storage module used for storing road network basic data. The maintenance data storage module is used for storing maintenance basic data, maintenance disease data and maintenance data, a technical data storage module which is used for storing road technical condition data, and an organization data storage module which is used for storing organization data; wherein the road network basic data, the maintenance basic data and the organization data are associated with one another; the road network basic data, maintenance basic data, highway technical condition data and organization data are stored and managed by the unified maintenance data center and are associated with one another, so an information island phenomenon can be avoided, each unit participating in highway maintenance realizes information sharing, and data redundancy is reduced.

The invention discloses a vertical-shaft wind turbine rotary spindle vibration restraining method which is high in wind energy capturing efficiency. The method includes: acquiring vertical inclination angle of a rotary spindle in real time; calculating vibration intensity of two orthogonal directions in a horizontal section of the rotary spindle and optimal rotation speed of a wind turbine generator under a maximum tracking target; determining expected rotation speed; allowing a rotating speed inner ring controller to drive the rotation speed to reach the expected rotation speed fast; and starting a reverse electric braking function of the rotating speed inner ring controller and a electromagnetic braking mechanism of the rotary spindle when vibration intensity of the spindle exceeds a preset safety regulating threshold; wherein fast rotating speed regulating of the rotating speed inner ring controller is achieved by motor acceleration through directly cutting of part of phase winding excitations or motor deceleration through releasing current chopping limits. By the method, current vibration intensity of the spindle can be calculated in real time, spindle vibration can be restrained, and the wind turbine generator is enabled to acquire the highest wind energy capturing efficiency as far as possible while mechanical stability is maintained.

The invention provides a load cluster control method and system based on a support vector machine. The load cluster control method and the load cluster control system comprise the following steps: collecting user power consumption data and preprocessing the user power consumption data to obtain a load data sample; Training data set and test data set are established according to the load data sample; The support vector machine classifier is constructed by training data set and testing data set, and the support vector machine classifier is perfected after the support vector machine is perfected.Input the real-time load data to the improved SVM classifier, and output the classification results of the real-time load data. The invention adopts the support vector machine algorithm to classify the user loads in the electric power system, and on the basis of the classification, the load cluster centralized control is carried out, so that the load classification has scientific theoretical support and technical support, and the load classified into the same class is guaranteed to have high consistency.

The invention discloses an electricity-searcher algorithm based on multiple searchers. The heat supply network coordinated operation optimization method comprises the steps that regional electricity-is established; And the heat supply network coordinately operates the mathematical model, and a multi-searcher optimization algorithm is used for managing the thermoelectric energy system in the region, so that the goal of minimum power generation cost of the whole region system is achieved. The multi-searcher optimization algorithm is designed based on the advantages and disadvantages of all heuristic algorithms, and has the advantages of being higher in convergence speed, higher in global convergence and the like compared with a classical moth fire fighting algorithm, a teaching and learningoptimization algorithm and the like.

The invention discloses an intelligent electric power mobile operation system. The system utilizes a mobile patrol terminal, a patrol intermediate server and a central control machine room to build an intelligent, mobile and safe electrical equipment patrol system, and can realize remote, strategic, safe and controllable inspection and monitoring of electrical equipment.

The invention discloses an electromechanical coordination inhibiting method and an electromechanical coordination inhibiting device for chattering of a rotary spindle of a vertical axis wind machine. The method comprises the following steps of: obtaining a vertical inclined angle of the rotary spindle in real time; calculating chattering intensity of the rotary spindle in two orthorhombic directions in a horizontal section and the best rotary speed of a wind driven generator under a largest-power tracking target; according to the chattering intensity of the rotary spindle, analyzing an expected rotating speed of the wind driven generator; driving the rotating speed of the wind driven generator to rapidly achieve the expected rotating speed by a rotating speed inner ring controller; when the chattering intensity of the rotary spindle exceeds the pre-set biggest safe regulation and controlling threshold value, starting an inverse electric braking function of the rotating speed inner ring controller and an electromagnetic braking mechanism of the rotary spindle, so as to rapidly reduce the rotating speed of the wind driven generator. According to the invention, the current chatteringintensity of the spindle can be measured in real time and the chattering of the spindle can be inhibited, so that the mechanical stability of the wind machine is kept and the highest wind energy capturing efficiency can be obtained as far as possible.

The invention discloses a first order placing system and method based on a chain store, and the system comprises an instruction receiving module, an information input module, a database module, an order generation module, an order export module, and a confirmation module, and the instruction receiving module, the information input module, and the order generation module are all connected with thedatabase module. The instruction receiving module is used for receiving a first order establishing instruction. The information input module is used for inputting store addresses, business district information and population information. According to the invention, through collecting big data as an analysis basis to formulate a store first order template, the system automatically collects administrative division data of villages and towns in national provincial and municipal districts and seasons of 657 cities in 23 provinces in China. The consumption level of the region, the business districtto which the geographic position of the store belongs, the permanent population and the floating population are used as data analysis bases, and a scientific and reasonable store first-time commoditypurchasing list based on data is automatically formulated in combination with enterprise products, so that the commodity sales volume of the franchisee is increased.

The invention discloses an electromechanical coordination suppression device for vertical axis wind turbine rotating spindle vibration. The electromechanical coordination suppression device comprises a two-shaft tilt angle sensor, a revolution speed sensor, an air velocity transducer, a wind driven generator, an electromagnetic rear axes brake mechanism, a revolving speed inner ring controller and an electromechanical coordination outer ring controller. The electromechanical coordination suppression device can measure and calculate current vibration intensity of a spindle in real time, suppresses vibration of the spindle, and enables a wind turbine to maintain mechanical stabilization and meanwhile obtain the highest wind energy capture efficiency as far as possible.

The invention discloses an electromechanical coordinating and restraining method of rotary spindle chattering by the utilization of a two-shaft tilt sensor. The method includes the following steps: acquiring the perpendicular tilt angle of a rotary spindle in real time, calculating chattering intensity in the two orthogonal directions in the horizontal cross section of the rotary spindle, and the optimal rotating speed of a wind driven generator tracking a target at the maximum power, making analysis to determine the expected rotating speed of the wind driven generator, driving the rotating speed of the wind driven generator to reach the expected rotating speed rapidly by a rotating speed inner ring controller, when the chattering intensity of the spindle exceeds a preset maximum safety control threshold value, actuating the electric reverse braking function of the rotating speed inner ring controller and an electromagnetic brake locking mechanism of the rotating spindle, and acquiring the perpendicular tilt deflection angle values a<x> and a<y> through the two-shaft tilt sensor installed on a static component at the top end of the rotating spindle. With the method, the current chattering intensity of the spindle can be calculated in real time and the spindle chattering can be restrained, so that while a wind turbine is kept stable mechanically, the highest wind power capture efficiency is acquired as far as possible.