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145results about How to "Easy way to get" patented technology

Online detection method of energy consumption information in machining process of main drive system of machine tool

InactiveCN102179727AThe online detection process is simpleEasy to operateMeasurement/indication equipmentsReal-time dataElectric machine
The invention provides an online detection method of energy consumption information in a machining process of a main drive system of a machine tool. According to the method, real-time data, such as loss power of a mainshaft motor, output power of the mainshaft motor, loss power of a mechanical drive system, cutting power, and the like of energy consumption information of the main drive system of the machine tool can be solved just by measuring the total input power of the machine tool in the production site in the machining process, according to established mathematical models of energy flowsand main energy consumption information of the main drive system in the machining process of the machine tool, and base data, such as no-load power and additional load loss coefficient of the machinetool, which are obtained in advance when a mainshaft is in a machining rotation speed, rated power of the mainshaft motor, rated efficiency of the mainshaft motor, no-load power of the mainshaft motor, and the like. The online detection method can be directly applied to researches, such as acquisition of energy efficiency of the machine tool, efficiency estimation of the machining process, energyconsumption monitoring, energy management and energy saving technologies and has wider application prospect.
Owner:CHONGQING UNIV

Method for obtaining energy efficiency of main electromechanical driving system in machining process of numerically-controlled machine tool

ActiveCN102637014AThe online detection process is simpleEasy to operateNumerical controlAdaptive controlNumerical controlMathematical model
The invention discloses a new method for obtaining energy efficiency of a main electromechanical driving system in a machining process of a numerically-controlled machine tool. In the method, according to an energy efficiency mathematical model of the main electromechanical driving system in the machining process of a machine tool, a relation function of no-load power of the machine tool which is prepared in advance stage at one time and the rotating speed and a table function of an additional load loss factor of the machine tool with single-interval or multi-interval rotation speed, as long as input power process data or process curve of a motor of the main driving system of the machine tool in the machining process is recorded, the energy efficiency of the main electromechanical driving system in the machining process of the machine tool can be calculated out from the mathematical model. The method can be used for research and application of solution to a series of problems, such as research on energy consumption and energy efficiency and evaluation on energy efficiency in the machining process of the machine tool, and energy-saving optimization of cutting technology parameters, thereby having extensive application prospect.
Owner:CHONGQING UNIV

Stagnation point judging method based on home-work correspondence and time-space kernel clustering

The invention provides a stagnation point judging method based on home-work correspondence and time-space kernel clustering. User signaling data and user internet surfing data with high frequency signal triggering and time-space association features in a specified time period are acquired according to sampling requirements; through two turns of home-work correspondence and space-time kernel clustering analysis, a set of coarse-grained time-space stagnation points with the time-space activity characteristics is formed; the obtained time-space stagnation set is subjected to verification and algorithm optimization, and the activity characteristics of special population is analyzed; finally, an OD matrix travel schedule based on the traffic community is formed, thereby providing big data support, which satisfies the characteristics of the time-space travel activity chain, for the traffic planning and traffic demand management. The stagnation point judging method based on home-work correspondence and time-space kernel clustering in the invention combines the advantages of the home-work correspondence and the time-space kernel clustering analysis to finally form a stagnation point sequence with the time-space activity characteristics, further improves the rationality and accuracy of the traffic travel OD matrix and effectively reduces the cost.
Owner:广州市交通规划研究院有限公司

Method for determining shear yield surface and volume yield surface of geotechnical materials

The invention relates to a method for determining the shear yield surface and the volume yield surface of geotechnical materials, and relates to the technical field of measuring solid deformation. Inorder to judge stress yield of the geotechnical materials, the shear yield surface is fitted by a quadratic polynomial, and the volume yield surface is fitted by an ellipse and a hyperbola; parametricregression of the shear yield condition of the quadratic polynomial is conducted through a constant average stress triaxial test and a conventional triaxial compression test; parametric regression ofthe volume yield conditions of the ellipse and the hyperbola is conducted through an undrained constant average stress triaxial test and the conventional triaxial compression test; a regression curveof the yield surfaces is drawn according to the shear yield condition, the volume yield conditions and relevant parameters; and according to specific response values of the shear yield condition andthe volume yield conditions in engineering, whether shear yield or volume yield occurs in the geotechnical materials or not is evaluated. According to the method for determining the shear yield surface and the volume yield surface of the geotechnical materials, whether yield of the geotechnical materials exists after stress or not can be judged in engineering, corresponding measures are taken to prevent material damage and collapse accidents.
Owner:GUANGXI UNIV

Natural sericin encapsulated mesoporous silicon nano-carrier and preparation method and application thereof

The invention relates to a natural sericin encapsulated mesoporous silicon nano-carrier and a preparation method and application thereof to the field of tumor treatment. The preparation method comprises the steps of preparing pure sericin solids; preparing mesoporous silicon nano-particles; preparing aminated, formylated or dual-sulfurated mesoporous silicon nano-particles with regular pore passage; preparing drug-loaded aminated, formylated or dual-sulfurated mesoporous silicon nano-particles; preparing a pH/protease or reduction/protease dual-responsiveness sericin/mesoporous silicon composite multifunctional control system. The natural sericin encapsulated mesoporous silicon nano-carrier and the preparation method and the application thereof have the advantages that the operation is simple to perform, the raw materials are simple and convenient to obtain, the cost is low, the universal applicability is high, no special complex equipment is needed and the like. The nano composite system prepared by adopting the method fully utilizes the characteristics of the sericin on the outer layer and the mesoporous silicon nano-particles on the inner layer, has pH/protease or reduction/protease dual responsiveness, has multiple functions of inhibiting tumor cells, monitoring nano-particle positioning and drug release in real time and the like, is high is drug loading capacity, is good in biocompatibility and has a wide application prospect in the field of tumor diagnosis and treatment, especially in the aspect of solving multi-drug resistance of tumors.
Owner:XIEHE HOSPITAL ATTACHED TO TONGJI MEDICAL COLLEGE HUAZHONG SCI & TECH UNIV

Feature recognition method for different travel activities based on mobile phone positioning data

The invention provides a feature recognition method for different travel activities based on mobile phone positioning data. The method comprises the steps of carrying out the job-house and life travelpurpose time-space kernel clustering analysis and time-space correlation feature analysis of OD residence points of the mobile phone positioning data, forming different travel activity purpose travelchains with time-space correlation features, and carrying out the pairing of the travel chains; performing verification and algorithm optimization on the obtained time-space stationary point set, performing analysis on crowds with different travel activity target features, and finally forming an OD matrix travel table based on a traffic cell, thereby providing big data support meeting the features of a space-time travel activity chain for traffic planning and traffic demand management. According to the invention, the respective advantages of the time-space activity correlation analysis and the OD matrix generation table are combined to finally form the stationary point sequence with time-space activity target features, so that the rationality and accuracy of OD matrixes of different travel targets of traffic are further improved, and the cost is effectively reduced.
Owner:广州市交通规划研究院

Reconstruction method for controlling pulses through rotating speed of rotating valve

The invention provides a reconstruction method for controlling the pulses through the rotating speed of a rotating valve. After drilling fluid pressure differential phase shift keying signals or drilling fluid pressure quadrature phase shift keying signals which are obtained from a well opening pressure sensor are subjected to signal treatment and pumping pressure interference and noise are eliminated, phase signals reflecting the carrier phase change during drilling fluid pressure differential phase shift keying modulation or phase signals reflecting the carrier phase change during drilling fluid pressure quadrature phase shift keying modulation are obtained through coherent demodulation and anti-cosine calculation, the control pulses of the rotating speed of the rotating valve are reconstructed by conducting derivative operation on the phase signals, and the reconstructed control pulses of the rotating speed of the rotating valve are not influenced by the phase error during coherent demodulation; and logical judgment is conducted on the amplitude of the constructed control pulse of the rotating speed of the rotating valve according to the data coding rule, the code element state represented by the pulses is determined, data codes are arranged according to the occurrence time sequence of the pulses, and decoding of the drilling fluid pressure differential phase shift keying signals or the drilling fluid pressure quadrature phase shift keying signals is achieved.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA) +1

Air conditioning device and method used for judging whether operating state of air conditioning device is normal or not

The invention relates to an air conditioning device and a method used for judging whether an operating state of the air conditioning device is normal or not. The method comprises the following steps of obtaining an air inlet temperature and an air outlet temperature of the air conditioning device after a compressor of the air conditioning device stably operates for first preset duration with highest operating frequency permitted under the current working condition; calculating an absolute value of the difference between the air outlet temperature and the air inlet temperature; and judging thatthe operating state of the air conditioning device is normal when the absolute value of the difference between the air outlet temperature and the air inlet temperature is greater than or equal to a preset temperature difference threshold value. The heating and refrigerating effect of the air conditioning device can be directly reflected with the air outlet temperature when the compressor stably operates with the highest operating frequency, and therefore, the absolute value of the difference between the air outlet temperature and the air inlet temperature can accurately and timely reflect a refrigerant amount condition in a refrigerating system of the air conditioning device, and accuracy and timeliness of judging are improved. Meanwhile, an obtaining way for the air inlet temperature andthe air outlet temperature is very simple, the internal structure of the air conditioning device is simplified, and the cost is reduced.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD

Laser radar transport flux computing method and laser radar transport flux computing device

The invention provides a laser radar transport flux computing method and a laser radar transport flux computing device. The laser radar transport flux computing method includes acquiring extinction coefficients of particulate pollutants collected by laser radar as well as reanalysis-mode meteorological data including wind-field data and humidity data; subjecting the extinction coefficients to humidity correction according to the humidity data in the reanalysis-mode meteorological data so as to obtain dry aerosol extinction coefficients; computing particulate pollutant vertical profiles according to the dry aerosol extinction coefficients and ground monitoring particulate pollutants; computing laser radar transport fluxes according to the particulate pollutant vertical profiles and the wind-field data of the reanalysis-mode meteorological data. The laser radar transport flux computing method has the advantages that the reanalysis-mode meteorological data are used for humidity correction of the extinction coefficients and laser radar transport flux computation, are acquired simply at a quite low cost and comprise the wind-field data and the humidity data which are both high in precision, and accordingly the whole laser radar transport flux computing method is low in cost and high in popularization degree.
Owner:BEIJING MUNICIPAL ENVIRONMENTAL MONITORING CENT

Method and product for acquiring plant alkaloid and aroma substance in coffee or tea by heating suction

The invention provides a method and product for acquiring plant alkaloid and an aroma substance in coffee or tea by heating suction. The product comprises a raw material core and a heating device; theraw material core is formed by machining the coffee or the tea used as a main raw material; and the heating device mainly comprises a power supply, a controller, a heating cavity and a shell. When the product is in use, the raw material chip is placed into the heating cavity, the controller controls the power supply to supply power to the heating cavity, the heating cavity heats the raw materialcavity, the plant alkaloid such as caffeine and the like, the aroma substance and an atomizing agent are separated from the raw material chip due to heating so as to form steam fog together, and the steam fog is directly sucked into the mouth of a user in a suction mode so as to achieve a refreshing effect and generate pleasant satisfaction. Compared to a conventional method for drinking by brewing and the like, the method and product for acquiring the plant alkaloid and the aroma substance in the coffee or the tea by heating suction, which are provided by the invention, have the characteristics of no limitation to brewing utensils, simple acquisition mode, repeated use, aromatic flavor, good refreshing effect and the like, and have good application prospect.
Owner:翟颖君

Neural network-based spacecraft attitude control nozzle fault intelligent diagnosis system and method

The invention relates to a neural network-based spacecraft attitude control nozzle fault intelligent diagnosis system and method. The system comprises a spacecraft attitude control nozzle fault data generation module and a fault diagnosis module; the fault data generation module is used for obtaining the fault information of a spacecraft attitude control nozzle as well as a corresponding spacecraft attitude error curve and the output curve of a controller during a spacecraft attitude control nozzle fault; with the fault data generation module adopted, a large amount of fault information can beobtained so as to be used for the training of the fault diagnosis module; the fault diagnosis module is used for the fault diagnosis of the spacecraft attitude control nozzle; the fault diagnosis module is based on a convolutional neural network technology; the output information of the fault diagnosis module is the working state of the attitude control nozzle; and the fault type of the spacecraft attitude control nozzle can be determined through the fault diagnosis module. With the neural network-based spacecraft attitude control nozzle fault intelligent diagnosis system and method of the invention adopted, the fault type of the spacecraft attitude control nozzle can be diagnosed accurately through the fault diagnosis module; the reliability of a spacecraft attitude control system is enhanced; and the fault resisting capacity of the spacecraft attitude control system is improved.
Owner:NAT INNOVATION INST OF DEFENSE TECH PLA ACAD OF MILITARY SCI

Rainfall-type landslide risk three-dimensional multipoint and multi-indicator warning method

The invention discloses a rainfall-type landslide risk three-dimensional multipoint and multi-indicator warning method. The method comprises the steps that (1) risk level dividing is carried out on each indicator; (2) the numerical values of the indicators of the rainfall intensity, the rainfall pattern, the cumulative rainfall and the slope soil-rock body saturability of a certain landslide in a certain period of time are acquired; (3) according to the value of each indicator, an evaluation matrix is acquired; (4) according to the evaluation matrix, an entropy weight method is combined to determine the weight of the indicators of the rainfall intensity, the rainfall pattern, the cumulative rainfall and the slope soil-rock body saturability; (5) the multi-indicator comprehensive measure {A, B, C, D} of the landslide is calculated; (6) the confidence lambda 0.5 is introduced, and comparing is carried out to determine the risk level of the rainfall-type landslide; and (7) corresponding landslide warning is carried out according to the risk level of the rainfall-type landslide. According to the invention, the warning accuracy of the o rainfall-type landslide is greatly improved; the problems of the prior art are solved; warning standards are unified; and the warning method is suitable for popularization and application.
Owner:INST OF MOUNTAIN HAZARDS & ENVIRONMENT CHINESE ACADEMY OF SCI

Intelligent agricultural machine operation management method and system

The embodiment of the invention provides an intelligent agricultural machine operation management method and system, and the method comprises the steps of: obtaining a plurality of land parcel local images collected by an unmanned aerial vehicle, and the pose information of the unmanned aerial vehicle corresponding to the land parcel local images; splicing all the land parcel local images according to the corresponding unmanned aerial vehicle pose information to obtain a land parcel image; inputting the land parcel image and the key points of an operation area marked by a user into a trained semantic segmentation network model to obtain the operation area; and determining a path planning result according to the operation area, and sending the path planning result to the intelligent agricultural machine. According to the method, the land parcel image is obtained by splicing a plurality of land parcel local images collected by the unmanned aerial vehicle, manual collection by means of a high-precision GPS is not needed, collection by means of an agricultural machine provided with a high-precision GPS is also not needed, the farmland land parcel information obtaining mode is simplified, the data collection efficiency is high, and the precision requirement can be met. User experience and an artificial intelligence algorithm can be effectively combined, and the segmentation precision of the neural network is improved.
Owner:BEIJING RES CENT OF INTELLIGENT EQUIP FOR AGRI

Product design risk analysis method and system based on multi-system integration

The invention discloses a design risk analysis method and system based on multi-system integration. The method comprises the following steps: obtaining experience information from experiment entrustment information, experiment report information, trial-manufacture problems, production problems and after-sales problems; establishing a product design failure mode and consequence analysis structure tree according to the bill of material data, and giving a product design failure mode and consequence analysis report by taking the product design failure mode and consequence analysis structure tree as a basis and referring to technical standard information and experience information; establishing a process design failure mode and consequence analysis structure tree according to the technological process list data, and giving a process design failure mode and consequence analysis report based on the process design failure mode and consequence analysis structure tree by referring to technological resource library data and experience information; and obtaining a product design risk analysis result according to the product design failure mode and consequence analysis report and the process design failure mode and consequence analysis report. According to the method, the risk analysis is more comprehensive, and the design and manufacturing misunderstanding is reduced.
Owner:XIAN FASHITE AUTOMOBILE TRANSMISSION CO LTD
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