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1093results about How to "Operable" patented technology

Control algorithm of multi-unmanned aerial vehicle cooperation formation and obstacle avoidance

InactiveCN108549407ARealize collaborative formationCoordinated formation is flexiblePosition/course control in three dimensionsObstacle avoidanceVehicle dynamics
The invention provides a control algorithm of multi-unmanned aerial vehicle cooperation formation and obstacle avoidance. The control algorithm comprises steps of (1) when an unmanned aerial vehicle formation executes a flight task, detecting positions and speed information of the unmanned aerial vehicles and airspace obstacles through an airborne sensor, and abstracting obstacles in a flight space into ball bodies; (2) according to position information of each unmanned aerial vehicle, constructing an unmanned aerial vehicle formation communication topology, and using a distributed transmission method, achieving information interaction between neighborhood unmanned aerial vehicles in the formation; (3) constructing an unmanned aerial vehicle dynamics model; and (4) when detecting an obstacle, determining a safe distance of obstacle avoidance of the unmanned aerial vehicles, judging whether the distance between any unmanned aerial vehicle and the obstacle in the unmanned aerial vehicleformation meets requirements of the safe distance, and if not, adjusting the formation pattern and carrying out obstacle avoidance through a virtual force strategy. The control algorithm is operable and simple; cooperation formation of multiple unmanned aerial vehicles can be achieved; obstacles can be avoided quite flexibly; and the control algorithm is very important for multi-cooperative combats.
Owner:HARBIN INST OF TECH AT WEIHAI

Plant polysaccharide cigarette filter tip and preparation method thereof

The invention discloses a plant polysaccharide cigarette filter tip and a preparation method thereof. Plant polysaccharide, starch, adsorbent, plasticizer, emulsifier, waterproofing agent and plant protein are blended according to a certain proportion, so that the filter tip is prepared. The preparation method includes the following steps: (a) the starch, water and the plasticizer are blended and stirred, so that modified starch solution is obtained; (b) the plant polysaccharide and the modified starch solution are blended; (c) under certain conditions, the emulsifier, the waterproofing agent and the adsorbent are added into the mixture of the plant polysaccharide and the modified starch solution, and after stirring, the mixture is injected into a long cylindrical mold made of anti-freezing, heat-proofing material and molded; (d) the semifinished product is placed into a freezing environment and frozen, i.e. prefreezing; (e) the semifinished product in step d is placed into a freeze dryer and freeze-dried; (f) the porous composite body is taken out of the mold and deburred, and thereby a filter tip stick is obtained. Material resources are rich, the cost is low, and the three wastes cannot be produced. The performance is good, the filter tip can reduce the nicotine content by 40.2 to 84.1 percent, the tar by 26 to 72.1 percent and the nicotinamide by 20 to 39.2 percent, and after use, waste can be biodegraded.
Owner:WUHAN LICHENG BIOTECH +1

Method and device for estimating power battery charge state on line

The invention discloses a method and device for estimating a power battery charge state on line. The method comprises the steps that a capacity correction factor of a power battery is calculated according to the accumulated released energy of the power battery, the internal resistance of the power battery is calculated, a state space model of the power battery is established, and the state space model of the power battery is substituted into an unscented Kalman filter to obtain the estimated value of the battery charge state. According to the method and device for estimating the power battery charge state on line, the capacity correction factor of the power battery is calculated according to the accumulated released energy of the power battery, the accumulated released energy of the power battery is the sum of energy consumed by load acting and energy consumed by the internal resistance from the first time up to now, the accumulated released energy of the power battery can reflect the using history of the battery like the cycle index and is more beneficial to accurate measuring in numerical value, and therefore the method of correcting the related parameters of the battery through the accumulated released energy of the power battery is better in operability and is more accurate in estimated value.
Owner:SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV +1

Anisotropism evaluation method for oil and gas generation quantity of shale

InactiveCN104700316ARealize evaluationEvaluate industrializationForecastingGeological measurementsRock evalOrganic matter
The invention relates to an anisotropism evaluation method for oil and gas generation quantity of shale. The method includes the following steps that firstly, different depth points on a section of the shale are densely sampled, basic parameter values are obtained through Rock-Eval pyrolysis detection, and organic matter types are determined; secondly, a conceptual model is established, and contents of organic carbon of different types are calculated; thirdly, a simulated experiment is designed, and a heavy hydrocarbon oil yield and natural gas yield evolvement model is established; fourthly, the total quantity of hydrocarbon generated and discharged by the different depth points of the shale and the quantity of heavy oil, light oil and gas generated and discharged by the different depth points of the shale are calculated, and the anisotropism of the oil bearing possibility and gas bearing possibility of the shale is evaluated. The models are established on the basis of a large number of sample data points of the section, anisotropism evaluation can be carried out on oil and gas resources of the shale, under the situation that samples are limited, the method is still suitable in combination with logging information, and therefore the method has a great significance in quantitatively representing the anisotropism of the oil bearing possibility and gas bearing possibility of the shale and accurately evaluating unconventional shale oil and gas resources.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

A comprehensive assessment method for the operation effect of a power grid side energy storage power station

The invention discloses a comprehensive assessment method for the operation effect of a power grid side energy storage power station, and the method comprises the steps: constructing an energy storagepower station operation effect assessment index system, and determining a to-be-assessed scheme set; According to the actual operation data of each power station, calculating and extracting evaluation indexes of all schemes in the scheme set to be evaluated of each power station to form an initial decision matrix, and performing standardized processing to obtain a normalized decision matrix; Adopting an analytic hierarchy process to obtain a subjective weight vector of the evaluation index, adopting an entropy weight method to determine an objective weight vector of the evaluation index, andobtaining a comprehensive weight vector of the evaluation index through a game theory combination weighting method; And comprehensively evaluating the operation effect of each power station. The constructed index system has scientificity, applicability and operability, the selected indexes are high in applicability, and calculation is easy; The actual operation effect of the power grid side energystorage power station is comprehensively evaluated from many aspects, and a basis is provided for planning construction, scheduling operation control and the like of a subsequent energy storage project.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +3

Unstressed installation method for solar cell array driving mechanism

The invention relates to the field of spacecrafts and aims to provide an unstressed installation method, which solves the problems of unstressed butt joint between a solar cell array and a driving mechanism and the like. The method is characterized in that: the flatness of an installation surface and the horizontality or the perpendicularity of a reference axis are ensured by a solar cell array driving mechanism installation plate [1]; the spatial position of a solar cell array driving mechanism product [2] on a corresponding installation plate is ensured through a solar cell array driving mechanism simulation tool [3] of which the appearance is similar to that of the product and the accuracy is improved, and the reset accuracy of the product is ensured through a positioning block [4]; a solar cell array installation frame [5] is adjusted or machined on the basis of the spatial position of the high-accuracy solar cell array driving mechanism simulation tool [3] which is determined in a spacecraft; and a solar cell array [6] in an unfolding state is in unstressed butt connection with the solar cell array driving mechanism [2] by measures such as integral translation, rotation and the like. The invention has the advantages that: the method is reasonable, simple and convenient, is practicably operated, makes installation reliable, has high adaptability, and the like.
Owner:SHANGHAI SATELLITE ENG INST

Rockfall prevention driven flexible protective net system designing method based on energy matching principle

ActiveCN105256731AClarify the design processOperableProtective constructionModel selectionEngineering
The invention discloses a rockfall prevention driven flexible protective net system designing method based on the energy matching principle. The rockfall prevention driven flexible protective net system designing method comprises the steps that 1, the energy consumption rate matching principle of components of a driven flexible protective net structure is established; 2, preliminary model selection and arrangement are performed on the components of the driven flexible protective net structure; 3, an explicit dynamics computation model capable of considering features such as the initial perpendicularity, large sliding of a supporting rope, large rotation of a supporting column and large deformation of an interception net is built through a finite element computing method; 4, impact loading is performed on the computation model, and dynamics response of the structure under the impact effect is analyzed; 5, structural design of the driven flexible protective net is performed. According to the method, the design principle of energy matching is adopted, both the force balance and the energy balance are considered, and the design is more scientific and reasonable; the component strength, stability, deformation and the like are used as design verification control indexes, and both the component design bearing capacity safety storage and the applicability of the protective net structural overall interception effect are considered.
Owner:SICHUAN OST SLOPE PROTECTION ENG

Preparing method of injectable sodium hyaluronate gel containing microballoons

InactiveCN109621003ASolve the problem of local inflammatory nodulesSimple methodPharmaceutical delivery mechanismTissue regenerationMicrosphereColloid
The invention discloses a preparing method of injectable sodium hyaluronate gel containing microballoons. The preparing method comprises the following steps of dissolving sodium hyaluronate into purewater to obtain a solution A; adding a microballoon material into the solution A, and conducting uniform stirring to obtain a homodisperse suspension liquid B; adjusting the PH value of the suspensionliquid B to obtain a suspension liquid C; adding a crosslinking agent into the suspension liquid C, conducting uniform stirring to obtain a homodisperse suspension liquid D, after a reaction is carried out for a certain period of time, crosslinking sodium hyaluronate in the suspension liquid D to form colloid E containing the homodisperse microballoon material; smashing the colloid E to obtain gel particles F, and obtaining gel particles G through screens with different mesh numbers; removing soluble impurities and crosslinking agents in the gel particles G in a repeated soaking or dialytic mode to obtain gel particles H; utilizing a PBS buffering solution for balancing for repeatedly soaking the gel particles H to obtain gel particles I; obtaining the sodium hyaluronate gel through the procedures of semi-dehydration, filling and sterilization. By means of the preparing method, the problem that the microballoon material is deposited and gets caked is effectively solved.
Owner:长春杭盖生物科技有限公司

Multifactor quantitative evaluation method for 3D porosity in geological period

A multifactor quantitative evaluation method for the 3D porosity in a geological period belongs to the technical field of diagenetic value simulation in a low-penetration compact reservoir. A planer grid well is selected, and well logging, logging, seismic and analysis and test data is collected and arranged; a 3D burial history and a thermal history under constraints of a sequence stratigraphic framework and deposition microfacies are established, 3D porosity evolution history models of mudstones, arkoses, quartz sandstones and rock-fragment sandstones are established on the basis of a target position, and porosity evolution histories of the different rock types in the target position are evaluated; on the basis of contribution of cementation and corrosion effects of the target position in a research region to the total porosity, porosity effect is corrected by decrease and increase, and a 3D porosity evolution process is evaluated; and a practically measured porosity of the grid well and the simulated porosity of a corresponding well point are analyzed by comparison, the precision requirement is met when the matching degree reaches 75%, and space-time distribution of the 3D porosity of the low-penetration compact reservoir in the geological period is evaluated.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Quick-freezing frying shrimp cake and production method thereof

The invention relates to a quick-frozen fried shrimp cake food and a manufacturing method thereof, which is characterized in that 60-80 percent of shrimp congee made from fresh shelled shrimps that are treated at low temperature is used as raw material. Then, 5-10 percent of fish congee, 1-5 percent of soybean protein, 5-10 percent of corn starch, 0.1-0.5 percent of quality improver, 0.2-0.3 percent of water maintaining agent, 2-8 percent of condiment and 5-10 percent of water are added to be kneaded at low temperature uniformly to obtain cake core material. The external surface of a cake core which is molded by the cake core material is covered with a layer of bread flour to form a shrimp cake. After being gelatinized, the shrimp cake is fried until the external surface is golden yellow. After cooled, the fried shrimp cake is quickly frozen to obtain the quick-frozen fried shrimp cake food. The food comprises 70-90 percent of the cake core and 10-30 percent of the bread flour by weight percentage. The food is provided with golden yellow outer surface, crisp outside and tender inside. The freshness of brine shrimp is maintained, and the nutrition components of other raw materials are synthesized. The cake core of the food has the advantages of good elasticity, perfect taste and convenience. The manufacturing method of the shrimp cake food has the advantages of reasonable process, feasible operation and high manufacturing efficiency and suitability for industrialized production.
Owner:SHANDONG HOMEY AQUATIC DEV

Cascade-reservoir self-adaptive integrated dispatching system and dispatching method integrating multi-source information

The invention relates to a cascade-reservoir self-adaptive integrated dispatching system and a cascade-reservoir self-adaptive integrated dispatching method integrating multi-source information, wherein the dispatching system comprises an external-source information-accessing module, an internal-source information-collecting module, a distributed-type information-transmitting module, a multi-source information integrating module, a dispatching-effect checking module, a self-adaptive optimizing module and a remote control center. According to the dispatching system and the dispatching method, the monitoring and transmitting functions of the multi-source information are provided by using a reservoir upstream sub drainage basin and a downstream river-channel controlled cross section as base units, and the dynamic analyzing and checking functions of cascade-reservoir integrated dispatching effects are realized on the basis of integrating the multi-source information; the nonlinear responding relationship among the dispatched draining flow quantity of a cascade reservoir and the flow quantity, the water level as well as the water quality of the downstream river-channel controlled cross section is functionalized, and the self-adaptive optimizing and feedback improving functions of the integrated dispatching of the cascade reservoir are provided. The dispatching system and the dispatching method are characterized in that the comprehensive benefits of flood prevention, electricity generation, shipping, ecology and water environments of the cascade reservoir are markedly enhanced.
Owner:CHINA THREE GORGES CORPORATION

Band steel stretch-bending straightening system capable of controlling elongation rate and control method thereof

The invention provides a band steel stretch-bending straightening system with capable of controlling the elongation rate and a control method thereof, wherein the band steel stretch-bending straightening system comprises an unreeling inlet roller, a stretch-bending straightener, a reeling outlet roller, a first motor and a second motor, wherein the first motor and the second motor respectively drive the inlet roller and the outlet roller. The band steel stretch-bending straightening system is characterized by also comprising a band steel inlet, an outlet speed measuring device, a first speed regulator, a second speed regulator and an elongation rate computing control device. The band steel stretch-bending straightening system capable of controlling the elongation rate and the automatic control method of the elongation rate of the band steel can realize the closed-loop control to the elongation rate of the band steel in the stretch-bending, straightening and producing processes of the band steel, have the advantages of high automation degree, simple, convenient and rapid operation, high stability and high precision and greatly improve the leveling production of the band steel and the quality of a processing product of the band steel.
Owner:上海精祥企业发展有限公司
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