50results about How to "Evaluation is scientific and reasonable" patented technology

The invention discloses an intermediate-voltage distribution operation state fuzzy integrated evaluation method based on a principle component analysis method and an entropy weight method. Major information in source data can be reserved by use of the principle component analysis method, a power supply capability, power supply quality and economic indexes are taken as the source data representing an operation state of a distribution network, through solving a feature value and a feature vector of a correlation coefficient matrix, principle components of operation of the distribution network are determined, and an evaluation system with weak correlation yet large envelope information content is formed. Given fuzziness existing in index evaluation, new evaluation indexes are objectively endowed with weights by use of the entropy weight method in the system, and a fuzzy integrated evaluation system of a 10kV distribution network operation mode is finally formed. According to the invention, the fuzziness of the evaluation indexes is taken into consideration, qualitative analysis and quantitative determination are realized, and the method provided by the invention is reasonable and scientific to a certain degree.

The invention relates to a current transformer operation evaluation method, which comprises the following steps: 1) original data of a field current transformer acquired by a system are monitored in an online mode via a remote metering device, and the original data are uploaded to a data server of an upper PC; 2) the upper PC classifies the original data, and according to the original data after classification, a mathematical model for current transformer operation evaluation is built; and 3) according to the built mathematical model for current transformer operation evaluation, current transformer operation is evaluated, a final health index HI of the current transformer is acquired, and according to the final health index HI, an operation trend of the current transformer is predicted and early warning is carried out. Compared with the prior art, the current transformer operation evaluation method has the advantages of being scientific and reasonable, a large specific number of research objects, wide covering range, systemaltization, intelligence and the like.

The invention relates to an energy consumption monitoring and evaluating system comprising a data collecting module, a control module, a data information processing module, a communication module, and an energy consumption management platform, wherein the data collecting module is used for collecting power energy consumption data, and transmitting the collected data to the data information processing module; the data information processing module calculates the collected power data to obtain an electric energy value, and transmits the electric energy value to the energy consumption management platform; the control module is used for receiving a control command emitted by the data information processing module, and controlling on / off of a power data collecting circuit; the communication module comprises a wired transmission channel, and a wireless transmission channel; the energy consumption management platform comprises a server and a data memory device, and is used for counting and analyzing energy consumption data, forming various energy consumption statistical reports and energy consumption evaluation models according to the analysis result, and guiding the energy conservation and emission reduction work. The energy consumption monitoring and evaluating system has the advantages of being accurate to sample, high in sampling efficiency, scientific and reasonable to evaluate and schedule, and the like; human disturbance factors are completely avoided.

The invention provides an urban global traffic facility bearing capacity evaluation method based on a dynamic model. A dynamic model allocation method is used as a basis; by means of a traffic four-stage model of land utilization, the population employment scale under land utilization is analyzed and planned, the total traffic demand and traffic travel space distribution are calculated, the accessibility and service characteristics of various traffic facilities such as urban roads, buses and rails are considered to calculate the supply capacity, and the traffic facility bearing capacity is scientifically evaluated; according to the evaluation method, an organization mode of 'multiple feedback of traffic land from the whole to the part' is adopted, the coordination degree of traffic facilities and land utilization on the whole level of the whole city can be evaluated, and optimization suggestions can be provided on the local level. The evaluation method can be directly applied to territorial space planning, urban general regulation, land development intensity demarcation and the like, guides reasonable scale and layout of land utilization, and realizes matching of the land development scale and traffic facility capacity.

The invention discloses a software and hardware reliability testing method and system based on a mission section. The software and hardware reliability testing method comprises the following steps of: recording mission stages and various working manners corresponding to the mission stages; combining process operations of equipment into a test cast sequence according to the conversion of the working manners of the mission stages, thus obtaining software mission stress; and expanding environment stress on the basis of the mission section, and estimating execution probability of the software stress under the environment stress. The software and hardware reliability testing method and system provided by the invention can convert the emphasis on the aspects of conformity quality and hardware quality to the emphasis on adaptability quality and both software and hardware quality. The software and hardware reliability testing method and system attach importance to a user employment and equipment application environment, and combines comprehensive software and hardware test environments on the basis of the conventional hardware test and software test platform, so that actual application can be more accurately simulated in a lab, the reliability of the equipment can be effectively improved, and the equipment reliability can be comprehensively, scientifically and accurately estimated.

A distribution network investment effect evaluation method based on improved interval fuzzy evaluation. This method first establishes the distribution network investment effect evaluation index system, and then uses the membership function in fuzzy mathematics to perform dimensionless processing on each index in the index system, and then The weighted interval algorithm is used to calculate the weight of each index, and finally the multiplication and addition operator is used to calculate the comprehensive score of the power grid. This design not only has good practical application effectiveness and accuracy, but also can provide guiding opinions for the later distribution network investment sub-project decision-making and sub-regional decision-making.

The invention discloses a parking performance test device for a passenger car on a rotating hub test stand and an application thereof. The test device comprises a rotating hub test stand, a force sensor and an angle displacement sensor, wherein the rotating hub test stand is fixedly provided with the passenger car, a hand-operated end of a parking braking operation rod of the passenger car is fixedly provided with the force sensor, the side portion of the parking braking operation rod is fixedly provided with the angle displacement sensor, wheel side force during parking is acquired through the rotating hub test stand, operation force of a driver is acquired through the force sensor, an angle displacement of the parking braking operation rod is acquired through the angle displacement sensor, and thereby the passenger car parking performance test function is realized, and the parking performance is tested and evaluated through employing test methods such as wheel side force measurement and equivalent gradient calculation and on the basis of the probability theory evaluation method. The test device is advantaged in that the principle is simple, strong operability and high precision are realized, and the test device is applicable to mechanical and electronic parking braking systems.

The invention discloses a vehicle insurance assessment system which is characterized by comprising an information inputting module, an information processing module, a credit reporting module, a control module and an information interactive exhibition module. The information inputting module is connected with the information processing module. The control module is connected with the information processing module, the credit reporting module and the information interactive exhibition module. The invention evaluates the vehicle insurance in a more scientific and reasonable manner, and provides different products and service strategies based on the system score, which can greatly enhance the user's product experience. The use of machine learning algorithms for data processing is more objective to evaluate customer classification and key factors.

The invention relates to a method for evaluating the operation of an electric energy meter, and the method comprises the following methods: 1) collecting the raw data of an on-site electric energy meter through a remote metering device on-line monitoring system, and uploading the raw data to a data server of an upper PC; 2) classifying the raw data through the upper PC, and building a mathematic model of operation evaluation of the electric energy meter; 3) evaluating the electric energy meter according to the built mathematic model of operation evaluation of the electric energy meter, obtaining the final health index HI of the electric energy meter, predicting the operation tendency of the electric energy meter according to the final health index HI, and carrying out early warning. Compared with the prior art, the method is scientific and reasonable, is large in specific number of research objects, covers a wide range, is systematic, and is intelligent.

The invention provides a basic public education service equalization comprehensive evaluation system. The system comprises a data input module used for inputting the basic data from the outside; a parameter confirmation module which is used for ensuring the standard evaluation indexes by a user; an evaluation index matching module which is respectively connected with the data input module and theparameter confirmation module, and is used for matching the standard evaluation indexes corresponding to various evaluation data in the basic data in a preset standard evaluation index library according to the evaluation index confirmation information of the user and outputting the standard evaluation indexes; an analysis processing module which is respectively connected with the data input moduleand the evaluation index matching module and is used for comprehensively evaluating the equalized construction condition of the urban basic public education service based on the basic data and each standard evaluation index to obtain a comprehensive evaluation result; a result outputting module connected with the analysis processing module and used for outputting the comprehensive evaluation result. The system and the method can carry out the scientific and comprehensive evaluation on the urban public education service equalized construction condition.

The invention relates to a traditional Chinese medicine screening method and system based on a partial connection number method. According to the traditional Chinese medicine screening method, regarding quaternary connection numbers, only the variation trend of medicine curative effects under a current treatment measure is calculated and directly reflected, and regarding first-order full partial connection numbers which have higher clinical significance, according to the sequence of the first-order full partial connection number, values of I and j are gotten in the range that i belongs to [0.5,1] and j belongs to [-0.5,0], so that the first-order full partial connection numbers are not all smaller than 0 (in accordance with clinical practice). The traditional Chinese medicine screening system comprises a characteristic function establishment module, a calculation module and a correction module, and the characteristic function establishment module is used for establishing curative effect quaternary connection numbers of different symptoms; the calculation module is used for calculating the first-order full partial connection numbers; the correction module is used for further adjusting the gotten values of I and j in the range that i belongs to [0.5,1] and j belongs to [-0.5,0], so that the first-order full partial connection numbers are not all smaller than 0. The traditional Chinese medicine screening method and system based on the partial connection number method are conductive to more scientifically and reasonably evaluating traditional Chinese medicine symptomatic curative effects and are used for conducting quantitative study of the relation of the modification according to symptoms and the curative effects.

The invention discloses a breeding method for guaranteeing cotton variety ecological adaptability and yield stability. The method comprises the steps of selecting a test new strain, focally planting plants in pots, and burying the pots into a test field, wherein 8 plots of each strain are planted, and are subjected to different irrigation amount treatment respectively; setting the water using time to be July 1 st to July 20 th, keeping away from the rainy season, conducting watering at around 2 pm every day, and using a multi-point soil temperature and humidity recorder to record the change of soil temperature and humidity in real time; recording the abscission condition of cotton buds and bolls, boll-setting performance, blight and verticillium wilt indexes, and comprehensive agronomic characters of plants in the pots respectively; conducting an indoor plant test, recording the boll weights, lint percents and yields of the strains and detecting the fiber quality; analyzing the relativity of the yield, quality, resistance data recorded in tests and recorded temperature and humidity data, and locating the materials which are low in relativity or have no obvious relativity as a target material. In this way, a new strain which is insensitive to temperature and humidity change reactions and good in ecological adaptability and yield stability is sifted out.

The invention discloses an equipment first-aid repair efficiency cloud evaluation method based on an extension uncertainty quantification method, and belongs to the technical field of aviation equipment first-aid repair, and the method comprises the following steps: 1, determining an equipment first-aid repair efficiency evaluation index; 2, constructing an efficiency evaluation index system; 3, determining the comprehensive weight of the index based on an extension analytic hierarchy process and an uncertainty quantification method; 4, constructing a cloud model of a standard evaluation language; 5, normalizing the quantized value of the index; 6, establishing a cloud model of bottom-layer indexes based on an extension uncertainty quantification method; and 7, constructing an equipment repair efficiency evaluation model. According to the method, the equipment repair efficiency can be comprehensively, reasonably, scientifically and effectively evaluated, and an important basis is provided for repair operation auxiliary decision and repair strength construction.

The embodiment of the invention discloses a method, device, equipment and system for determining shale pore size distribution. The method comprises the following steps: acquiring a nitrogen adsorption / desorption curve of a shale sample to be detected based on a liquid nitrogen isothermal adsorption experiment; establishing a nanopore liquid nitrogen surface tension calculation model based on critical temperature change information of fluid in the nanopores and the influence information of the curvature of the meniscus on the surface tension of the nanopores; correcting a Kelvin equation according to the nanopore liquid nitrogen surface tension calculation model to obtain corresponding critical condensation pore diameters under different relative pressures; and determining pore size distribution information of the shale sample to be detected according to the corresponding critical condensation pore sizes under different relative pressures and the nitrogen adsorption / desorption curve. According to the embodiment of the invention, more accurate shale pore size distribution can be obtained, so that the pore size distribution characteristics of actual shale are scientifically and reasonably evaluated.

The invention discloses an assessment method of internet of vehicles fog computing capacity under a back-connecting mode. The assessment method comprises the following steps: acquiring initialized data; computing the distance to other all vehicles in the internet of vehicles from each vehicle and acquiring the distance minimum value at each time point, and computing the distance to an original point set in advance in the internet of vehicles from each vehicle, and acquiring the distance minimum value; adding the vehicle in the internet of vehicles, and updating the moment of the last connecting starting point of the vehicle as the current moment; updating data information of the internet of vehicles; and computing assessment information of the internet of vehicles, thereby accomplishing the fog computing capacity assessment in the internet of vehicles. Through the assessment method of internet of vehicles fog computing capacity under the back-connecting mode provided by the invention,the internet of vehicles fog computing capacity is evaluated through the vehicle amount and the computing capacity in the internet of vehicles, the internet of vehicles fog computing capacity under the back-connecting mode can be scientifically and reasonably assessed and evaluated; and the method is simple and reliable.

The invention relates to a method for evaluating the operation state of a gateway electrical energy metering device, and the method is characterized in that the method comprises the following steps: 1) collecting the raw data of an on-site gateway electrical energy metering device through a remote metering device on-line monitoring system, and uploading the raw data to a data server of an upper PC; 2) classifying the raw data through the upper PC, and building a mathematic model of operation evaluation of the gateway electrical energy metering device according to the classified raw data; 3) carrying out the grade evaluation of the operation state of the gateway electrical energy metering device according to the built mathematic model of operation evaluation of the gateway electrical energy metering device, building an operation evaluation system for the gateway electrical energy metering device, predicting the operation tendency of the gateway electrical energy metering device according to the operation evaluation system for the gateway electrical energy metering device, and carrying out early warning. Compared with the prior art, the method is scientific and reasonable, is large in specific number of research objects, covers a wide range, is systematized, and is intelligent.

The invention relates to a bridge deformation monitoring method. The method mainly comprises the following steps: 1, selecting a radar remote sensing satellite SAR image data source, and completely covering bridge infrastructures in research time and geographic space dimensions; 2, performing interference processing on the selected SAR image data source based on a timing sequence SBAS-InSAR technology to obtain detailed deformation information of the research bridge infrastructure within the monitoring time; and 3, performing point-line statistical analysis on the detailed deformation information of the bridge facility obtained in the step 2, and evaluating and researching the deformation evolution trend of the bridge facility. According to the method, the technical superiority of a novelSBAS-InSAR monitoring means compared with a traditional monitoring means is well reflected, and the reliability and scientificity of bridge facility monitoring results are greatly improved in combination with a point-line statistical analysis method of the SBAS-InSAR technology. Interval and point-line type evaluation is carried out on bridge deformation monitoring, and the reliability of the SBAS-InSAR technology for bridge infrastructure deformation monitoring is greatly improved.

The invention discloses a method for obtaining a reoxidized analysis sample in a steam service environment. The method comprises the following steps: 1) performing steam oxidation on a material by water steam to obtain a primarily oxidized sample; 2) adopting mechanical cutting, grinding or electric spark cutting according to requirements of simulation analysis to remove a part of or all of a surface oxide layer in order to simulate different oxide layer exfoliation conditions; 3) carrying out high temperature creep loading on the processed material obtained in step 2) in a protective gas environment; and 4) carrying out water steam oxidation on the processed material obtained in step 3) again to obtain the reoxidized analysis sample in the simulated steam service environment, wherein H2O steam is adopted in the step 1) and heavy-oxygen water (H2<18>O) steam is adopted in step 4) in order to distinguish the double oxidized product.

The invention relates to a method for evaluating voltage transformer operation. The method comprises the following steps of: 1) using a remote metering device online monitoring system to acquire the original data of a field voltage transformer and upload the original data to a data server of a host PC; 2) using the host PC to classify the original data and establish a mathematic model of voltage transformer operation evaluation according to the classified original data; and 3) according to the established mathematic model of voltage transformer operation evaluation, evaluating the voltage transformer operation to obtain a final health index HI of the voltage transformer, predicting the operation trend of the voltage transformer according to the final health index HI and performing early warning. Compared with a method in the prior art, the method has advantages of a scientific and reasonable property, a large number of researched objects, a wide coverage, and good systemaltization and intellectualization.

The invention belongs to the field of road maintenance engineering, and particularly relates to a pavement maintenance scheme decision-making method based on life cycle cost analysis, which comprisesthe following operation steps: S1, determining a functional unit; S2, determining a maintenance opportunity; S3, evaluating the time value of funds, and carrying out economic analysis on the initial construction cost, the operation period management and maintenance cost, the environment cost and the residual value index in the life cycle of different maintenance schemes; S4, performing life cyclecost analysis. According to the pavement maintenance scheme decision-making method based on life cycle cost analysis provided by the invention, the concepts of life prediction and life cycle cost arecombined; the decision of a maintenance scheme in highway engineering is more reasonable, engineering construction, the service level of the service life and long-term investment control are guaranteed more powerfully and comprehensively, road management and maintenance funds are used more reasonably, and the cost performance is higher.

The invention discloses a method for evaluating the quality of encarsia formosa cards. Evaluation indexes of the method comprise a bee pupa eclosion rate and a bee pupa eclosion concentration index. The eclosion rate of the bee pupae is the percentage of the number of encarsia formosa emerging from the bee pupae within 12 days to the total number of the bee pupae. By adopting the method, the quality of the encarsia formosa card can be scientifically and reasonably evaluated, large-scale production, inspection, sales and application of encarsia formosa can be guided, and feasible technical indexes and detection methods are provided for quality grading of the encarsia formosa card.

The invention relates to a method for evaluating the operation of an electric energy meter, comprising the following steps: 1) collecting original data of an on-site electric energy meter through an online monitoring system of a remote metering device, and uploading the original data to a data server of a host PC; 2) the host computer The PC classifies the original data, and establishes a mathematical model for the operation evaluation of the electric energy meter according to the classified original data; 3) According to the established mathematical model for the operation evaluation of the electric energy meter, evaluate the operation of the electric energy meter, and obtain the final result of the electric energy meter. Health index HI, according to the final health index HI to predict the running trend of the electric energy meter and give an early warning. Compared with the prior art, the present invention has the advantages of scientific rationality, many specific research objects, wide coverage, systematization, intelligence and the like.

The invention discloses a fracturing filling sand prevention performance test system and test method and an evaluation method thereof, which can optimize fracturing sand prevention construction parameters and can improve the fracturing sand prevention effect. The system comprises a fracturing filling belt single-wing crack sand-blocking visual simulation main body device and a fracturing filling belt double-wing crack sand-blocking bilinear flow visual simulation main body device which are arranged in parallel, and the purposes of different experiment tests and evaluation for fracturing filling sand-preventing crack filling belt flow and sand blocking can be achieved. The whole system is comprehensive in function, reasonable in process and capable of achieving automatic sand adding, automatic sand passing collection, automatic data collection and the like. Data monitored by the experiment system is comprehensive, and comprehensive test data support is provided for comprehensive sand prevention performance evaluation of the crack filling zone. The performance index evaluation method provided by the invention measures the flow guiding performance, the sand blocking performance and the comprehensive performance of the fracturing sand prevention filling layer, and is scientific and reasonable in evaluation.

The invention discloses an airport PAPI light verification system based on a mooring hovering unmanned aerial vehicle. The system comprises a flight platform, a ground platform and a control module. The control module is in communication connection with the flight platform and the ground platform, and the flight platform is connected with the ground platform through a photoelectric composite cable; the control module instructs and controls the flight platform to vertically go up at two preset collection points to obtain an image of PAPI light and three-dimensional position information of an unmanned aerial vehicle, convert the image information of the PAPI light to HDMI / SDI signals, convert the HDMI / SDI signals to the image optical signals of the PAPI light and transmit the image optical signals of the PAPI light and the corresponding three-dimensional position information to the photoelectric composite cable to the ground platform, the ground platform converts the image optical signals of the PAPI light to the HDMI / SDI signals of the PAPI light image, the height of the unmanned aerial vehicle is determined when the PAPI light is a preset color according to the PAPI light image indicated by the PAPI light image HDMI / SDI signals and the three-dimensional position information of the unmanned aerial vehicle, the height of the unmanned aerial vehicle is compared with a preset height threshold value, and the angle of the PAP is regulated according to a comparison result.

The invention provides a testing device and an evaluation method for radial deformation of a single pancake coil of a transformer. The testing device comprises M magnetic field generating devices and a coil working power supply; each single magnetic field generating device is composed of a square opening iron core, an excitation winding, an excitation winding outgoing line, an axial iron core fixing device, an axial iron core supporting device and an excitation power source; the magnetic field generating devices take the circle center of a single pancake coil of the transformer as the circle center, M magnetic field generating devices are sequentially arranged at equal intervals along the coil under the condition that the opening of the square opening iron core is aligned with the single pancake coil of the transformer, and excitation winding outgoing lines of adjacent different excitation windings are sequentially connected in series and then are connected with the excitation power supply; the number of turns of each exciting winding is adjustable, so that the magnetic induction intensities of axial magnetic fields at different positions of a single pancake coil of the transformer are different; and a single pancake coil of the transformer is connected with a coil working power supply during working. The radial deformation degree of the single coil of the transformer can be evaluated more scientifically and accurately.

The invention relates to the technical field of medical apparatuses, and specifically relates to an IgA nephrosis (IgAN) treatment scheme comprehensive evaluating device. The device comprises a machine body, a display screen, a menu button, adjustment buttons, a sample collection control button, a collecting groove, a collecting suction pipe, a power supply connector, a detection instrument, and a software operation management system. The front side of the machine body is provided with the display screen. The menu button is arranged under the display screen. The adjustment buttons are arranged in a circle array around the menu button, wherein the center of the menu button is taken as the circle center. The left side of the menu button is provided with the sample collection control button. The back of the machine body is provided with the collecting groove. The center of the collecting groove is provided with the collecting suction pipe. The power supply connector is arranged on the bottom of the machine body. The provided device is used to comprehensively evaluate the IgAN treatment scheme. The provided device is developed on the basis of clinical indexes (protein urine and kidney function) of IgAN patients, pathological score integration, and conventional medical evidences, and at the same time the clinical type and pathological characteristics are taken into account comprehensively. The provided device can comprehensively, nondestructively and quickly evaluate the clinical treatment scheme for IgAN patients and provides scientific and reasonable comprehensive treatment evaluation for doctors and IgAN patients.

The invention relates to the technical field of asphalt pavement emission reduction evaluation, and discloses an asphalt pavement emission reduction evaluation method which comprises the following steps: (1) screening and determining evaluation indexes for asphalt pavement emission reduction evaluation; (2) determining an actual result of each evaluation index of the asphalt pavement to be evaluated; (3) quantifying and scoring each evaluation index of the asphalt pavement according to the actual result of each evaluation index of the asphalt pavement to be evaluated; (4) determining the weight value of each evaluation index in the whole evaluation system; (5) calculating the final evaluation score of the asphalt pavement according to the weight value of each evaluation index; According tothe asphalt pavement emission reduction evaluation method provided by the invention, the asphalt pavement energy conservation and emission reduction evaluation method suitable for the national conditions of China is developed aiming at the actual conditions of the asphalt pavement materials, structures and construction processes in China, the evaluation result of the method is more accurate, different evaluation requirements can be met, and the evaluation process is scientific and reasonable.

The invention discloses a cultivation method of an early-maturing low-temperature-resistant inbred line of tomatoes. The cultivation method comprises the following steps of selecting a low-temperature-resistant inbred pure line as a female parent, selecting an inbred line with a super-early-maturing genetic background as a male parent and a recurrent parent, and cultivating the super-early-maturing low-temperature-resistant inbred line through sexual hybridization, suboptimal temperature stress selection and pedigree selection. By adopting the method, the low-temperature-resistant degree and the early-maturing property of a tomato germplasm material can be rapidly, accurately, scientifically and efficiently evaluated, and feasible technical indexes and detection methods are provided for the evaluation of the low-temperature-resistant degree and the early-maturing property of the tomato germplasm, so that the cultivation method is beneficial to rapid cultivation of the early-maturing low-temperature-resistant inbred line of the tomatoes.

The invention provides a testing method and device for the performance of a hot melt adhesive layer of a lithium ion battery and the lithium ion battery. The testing method provided by the invention comprises the following steps: acquiring an actual shearing force F1 of the hot melt adhesive layer of the lithium ion battery; acquiring a drop shear force F2 of the hot melt adhesive layer of the lithium ion battery; when F1 is greater than F2, judging that the bonding performance of the hot melt adhesive layer of the lithium ion battery is qualified; and when F1 is less than or equal to F2, judging that the bonding performance of the hot melt adhesive layer of the lithium ion battery is unqualified. According to the method, the F1 and the F2 are obtained, and whether the bonding performance of the hot melt adhesive layer of the lithium ion battery is qualified or not is judged according to the size relationship between the F1 and the F2, so that the influence of subjective factors during evaluation of the performance of the hot melt adhesive layer is reduced; the performance of the hot melt adhesive layer of the lithium ion battery is scientifically and reasonably evaluated, so that the design of the hot melt adhesive layer of the lithium ion battery can be guided. The lithium ion battery F1 is greater than F2, so that the lithium ion battery has good safety performance.

The invention relates to a power grid power supply reliability level clustering method and system. The method comprises the steps of selecting factors influencing power supply reliability to establishan index set; Determining a final clustering index from the index set by adopting correlation coefficient significance verification; Performing clustering analysis on the final clustering index to obtain a clustering result of power supply reliability level classification; And optimizing the basic data describing the power supply reliability level according to the clustering result. According tothe method, a series of processing is carried out on the index set before clustering, correlation coefficient significance verification is carried out after data correlation coefficient calculation, and auxiliary judgment, namely principal component analysis, is added, so that the dimension is reduced, and the credibility is also improved to a certain extent.