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35 results about "Demand rate" patented technology

Demand rate. noun. : a rate (as of electric power) based on the maximum amount that a customer requires to be kept available for use.

Warship equipment availability evaluation method

The invention discloses a warship equipment availability evaluation method. The method includes: acquiring part demand rates of equipment maintenance station sites at any time; calculating numbers ofparts of the station sites in repairing according to the part demand rates of the station sites; calculating numbers of the parts of the station sites in transit according to the part demand rates ofthe station sites; calculating maintenance guarantee delay numbers and transport guarantee delay numbers of the parts of the station sites according to the part demand rates of the station sites; acquiring part supply mean-values and variances of the station sites; calculating and obtaining expectation shortage numbers of the parts according to part inventory numbers, part supply values and part shortage numbers of the station sites; combining the part supply mean-values and variances to calculate availability of the parts according to the expectation shortage numbers of the parts and the variances; and calculating availability of equipment. The method of the technical solution of the invention is accurate in a model algorithm, is fast in a calculation speed, is suitable for use in establishing an any-hierarchy equipment time-varying availability model, is small in errors when availability is low and repair probability is higher, and is wide in an applicability range.
Owner:NAVAL UNIV OF ENG PLA

Method for predicting accessory demand quantity based on consumption history

InactiveCN109801016AThere will be no backlogThere will be no problem of service failureLogisticsMarketingProduct demandIndustrial engineering
The invention discloses a method for predicting accessory demand quantity based on consumption history. The method comprises the following steps: 1, carrying out heat treatment; calculating similar accessory necessity, obtaining a new product demand quantity in the first period, according to demanded quantity of new products and similar accessory necessity rate, calculating the accessory demand quantity of the first period; selling a new product on the market; counting the accessory sales performance and the new product sales performance of each period; calculating the accumulative sales performance of the accessories and the accumulative sales performance of the new products; and calculating an actual accessory demand rate according to the accessory accumulative sales actual performance and the new product accumulative sales actual performance, obtaining the product demand quantity of the next period of each period, and calculating the accessory demand quantity of the next period according to the actual accessory demand rate and the product demand quantity of the next period of each period. After new products enter the market, the demand quantity of the market for maintenance accessories in all periods can be accurately predicted, and the output accessories are not prone to excess stock or overstocking.
Owner:雅马哈发动机(厦门)信息系统有限公司

Variable-propeller demand rate correcting method and device as well as wind generating set

ActiveCN112412697AImproved pitch execution accuracyEliminate execution static differenceWind motor controlEngine fuctionsControl engineeringPropeller
The embodiment of the invention discloses a variable-propeller demand rate correcting method and device as well as a wind generating set. The variable-propeller demand rate correcting method comprisesthe following steps: determining an initial variable-propeller demand rate of the wind generating set at a current moment; determining a variable-propeller demand correcting rate corresponding to thepropeller at the current moment by a proportional integer controller; determining a target variable-propeller demand rate of the propeller at the current moment according to the initial variable-propeller demand rate and the variable-propeller demand correcting rate; sending the target variable-propeller demand rate into a variable-propeller performing mechanism for making the variable-propellerperforming mechanism to perform propeller varying according to the target variable-propeller demand rate. According to the variable-propeller demand rate correcting method and device as well as the wind generating set provided by the embodiment of the invention, the variable-propeller demand rate is corrected by the proportional integer controller, so that performing static errors can be eliminated, and variable-propeller performing precision of the variable-propeller performing mechanism is improved.
Owner:XINJIANG GOLDWIND SCI & TECH

A PDCH channel configuration method and device

ActiveCN103974263BSolve problems that cannot reflect user perceptionEfficient configurationNetwork planningCurrent channelTelecommunications
The present invention provides a PDCH channel configuration method and device. The method includes: calculating the single-slot theoretical rate of the cell according to the single-channel rate of the cell and the high coding ratio corresponding to the single-channel rate; Carry out quantitative evaluation of the service perception level to obtain quantitative evaluation parameters; determine the single time slot of the cell according to the first correspondence between the pre-statistical cell traffic value, time delay and single-user single-slot rate, and the quantitative evaluation parameters Demand rate: Calculate the theoretical channel value of the cell according to the multi-slot capability parameters of the terminals in the cell and the number of concurrent terminals within the preset time period; calculate the theoretical channel value of the cell based on the theoretical single-slot rate, single-slot demand rate, and theoretical channel value of the cell , calculating the required channel value of the cell; performing channel configuration of the cell according to the current channel value of the cell and the required channel value. The present invention formulates a PDCH configuration scheme according to the actual situation of the cell, reflecting user perception.
Owner:CHINA MOBILE GROUP ZHEJIANG

Sediment oxygen demand rate determination device based on electromagnetic dynamic and using method

InactiveCN103207266BSolve unfavorable problemsEnables Oxygen Consumption Rate DeterminationEarth material testingMagnetic tension forceElectric machine
The invention relates to a sediment oxygen demand (SOD) determination device based on electromagnetic dynamic, and a using method. The SOD determination device comprises a testing room, a dynamic room, a magnetic rotor, a magnetic pole, a motor, a dissolved oxygen probe socket, support fixing interfaces and a storage battery, wherein the testing room is in a cylinder structure with the bottom end opened and the runway-shaped cross section; the dissolved oxygen probe socket is formed on one side of the top of the testing room; the support fixing interfaces are arranged at the two ends of the top of the testing room respectively; the dynamic room is a cylindrical barrel and reversely fixed at the top of the testing room; the motor connected with the magnetic pole is arranged in the dynamic room, and is externally connected with the storage battery by a connecting line; the magnetic rotor is placed in the testing room, and is in magnetic connection with the magnetic pole; a hand-held support is connected and fixed to allow the device to be submerged in water and to be filled with overlying water; the dissolved oxygen probe is inserted and sealed; the device is then fixed at the bottom of the water; overlying water circulation of the testing room is adjusted and controlled; and an SOD is determined. The device is simple in structure, easy to dismount, small and exquisite in size, and convenient to carry, and can effectively determine the SOD under the action of different hydrodynamic forces.
Owner:EAST CHINA NORMAL UNIV
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