136results about How to "Reasonable evaluation" patented technology

The invention provides a receiving-end network voltage stabilization overall process situation assessment and prevention and control method based on responses. The method comprises the steps of S1, obtaining various off-line simulation data or real-time measuring data; S2, constructing equivalent power transmission models of nodes according to node practical transfer power; S3, obtaining a node quiescent voltage stability margin index Vsi of equivalent power transmission model parameters of each node; S4, constructing a node reactive compensation assessment index according to the equivalent power transmission model parameters of each node; S5, setting an early warning threshold value Ncr of the node quiescent voltage stability margin index, and calculating a load shedding estimation of a weaker node when the quiescent voltage stability margin index Vsi of each node is smaller than the Ncr. According to the receiving-end network voltage stabilization overall process situation assessment and prevention and control method based on the responses, a weak node or a weak area in a current operating mode can be found out, a rapid estimation of reactive compensation levels and load shedding of each node is achieved, and the method can be widely applied to the fields of power network planning and online security monitoring.

The invention discloses a route planning method for pesticide application aided by multiple unmanned aerial vehicles. The method comprises the following steps: determining the course and spraying width of the unmanned aerial vehicles and dividing a pesticide application area into a plurality of parallel sub-areas accordingly; then determining optimization standards and constraint conditions and accordingly establishing a target function for the route of pesticide application aided by the multiple unmanned aerial vehicles; and optimizing the established target function by using an optimization method which integrates genetic algorithm and simulated annealing algorithm into one so as to eventually obtain an optimal flight route for the unmanned aerial vehicles. According to the invention, the dual optimization scheme of a combination of GA and SA is employed, and the route for coordinated flight of the multiple unmanned aerial vehicles is provided on the basis of the optimization scheme, so the technical problem that common agricultural machines cannot accurately accomplish pesticide application in agriculture is overcome.

The invention discloses a system and a method used for evaluating used automobile technology conditions. Through basic information and maintenance recording information of a to-be-detected automobile, evaluation is performed on all indexes of the automobile and automobile technology condition levels are evaluated. According to the invention, according to the automobile basic information and the maintenance recording information, overall comprehensive evaluation is performed on reliability, safety and economical performance of the automobile, so the evaluation contents are allowed to cover the automobile utilization life cycle. The method is objective, proper, highly universal, highly dynamically adaptable, and capable of scientifically and comprehensively evaluating the automobile technology condition levels. Based on the VIN code of the automobile, quick and precise evaluation of the automobile technology condition levels is achieved, the evaluation processes are highly efficient and quick, manpower and materials are saved, the method is widely applicable for evaluation of vehicle technology conditions in second-hand automobile transactions, important reference basis is provided for promotion of second-hand automobile fair transaction, fake transactions are avoided and legitimate rights and interests of the consumers are protected.

An embodiment of the invention provides a geologic horizon automatic tracking method and device. The method comprises the steps that a target horizon seed point is preset on seismic data; the target horizon seed point is taken as a current seed point, and geologic horizon automatic tracking is performed in the following manner: a seed point is determined to be a prediction seed point in the geologic horizon automatic tracking direction in a search range on a seismic trace set adjacent to the current seed point, and seismic wave group information of the prediction seed point is extracted; seismic wave group information of the current seed point is extracted, and the similarity of the seismic wave group information of the prediction seed point and the seismic wave group information of the current seed point is determined, if the similarity is larger than or equal to a preset value, the prediction seed point is set to be a new current seed point, and otherwise, a seed point selected from seed points in a seed point search range is set to be a new current seed point for continuous search. According to the scheme, the anti-noise capacity of geologic horizon automatic tracking and the horizon tracking accuracy are improved.

The invention relates to a quantitative evaluation method for dynamic stability of a creep-type side slope, in particular to a method for determining a dynamic stability coefficient of the creep-type side slope. The method includes the following steps: (1), measuring related parameters of the side slope and determining an initial stability coefficient F0; (2), arranging side slope displacement monitoring points and acquiring displacement monitoring data; (3), determining side slope creep rupture instability time and a stability coefficient Ft in a constant-speed creep stage; (4), determining an initial point tc and a stability coefficient Ftc in a side slope accelerated creep stage; (5), determining the dynamic stability coefficient in an accelerated deformation stage of the creep-type side slope; (6), determining a criterion for early warning of instability of the creep-type side slope. By the method, instability time of the creep-type side slope and landslide safety coefficients of the side slope at any time can be determined clearly, the limitation of incapability of analyzing and evaluating the dynamic stability of the side slop in real time according to conventional balance methods is overcome, and efficiency of dynamic stability evaluation and monitoring and early warning of the complex creep-type side slope can be greatly improved.

The invention discloses a method for evaluating writing characters in calligraphy practice calligraphy, a written character is obtained by the user referring to a standard calligraphy. The method comprises the following steps of: extracting a first class feature and a second class feature of each character from a calligraphy practice calligraphy, wherein the first class feature comprises an X-axisdeviation degree, a Y-axis deviation degree and a font size of each character, and the second class feature comprises a gray level co-occurrence matrix, an LBP local feature and a HOG feature of eachcharacter, wherein the first class feature comprises an X-axis deviation degree, a Y-axis deviation degree and a font size of each character; determining a neatness score of handwriting characters inthe calligraphy practice calligraphy calligraphy according to the first type of characteristics; determining the average score of the characters in the calligraphy practice calligraphy according to the characteristics of the second type; at least the integrity score and the average score are present to the user to evaluate the write. In the embodiment of the invention, not only the grading at thecharacter level is considered when evaluating the handwritten characters, but also the overall neatness presented by all the handwritten characters on the whole page of the calligraphy practice calligraphy sticker is considered to perform the overall grading, so that the handwritten characters can be evaluated more accurately and reasonably.

The invention provides a comprehensive evaluation system of an industrial boiler energy saving scheme and a construction method thereof. The comprehensive evaluation system comprises three phases which are an early stage, a medium stage and a later stage, wherein in the early stage, indexes are established and weight distribution is performed; in the medium stage, fuzzy comprehensive evaluation of the step-by-step indexes is performed and a high-grade comprehensive evaluation result is output; and in the later stage, comprehensive evaluation system software is used to output an assessment result. By using the set of comprehensive and integrated evaluation system, an industrial boiler energy saving scheme is comprehensively evaluated from aspects of safety, energy saving, economy, generalizability and the like. An existing limitation of qualitative evaluation from a single aspect of energy saving is broken through, and a multi-element evaluation index model in which qualitative and quantitative evaluations are combined, a technology and a market are combined, and safety and energy saving are combined is formed. Through research, an evaluation standard of each index required by the evaluation system is determined; for different types of technologies or products, quantification is performed; human factors which influence the evaluation are reduced to a minimum so that an energy saving technology evaluation system becomes objective, scientific and reasonable; and sound development of industrial boiler energy saving technology industrialization is promoted.

The invention relates to a method for testing wear-resisting property of polyethylene with super high molecular weight. The method comprises the following steps: based on the method for frictional wear test of plastic sliding of national standard (GB3960-83), a friction ring glued with sand paper is fixed on an MH-20 type frictional wear testing machine so as to fix the rotating speed of the friction ring; by relative wearing of the sample and the friction ring, the quality wearing capacity and grinding defect width of polyethylene with super high molecular weight are tested and volume wearing capacity and friction coefficients are calculated so as to obtain wear-resisting property of the polyethylene with super high molecular weight, which has different molecular weight and grades. Compared with the prior art, the method has the advantages of being fast, simple, easy and reasonable and the like.

The invention discloses a cooking quality evaluation method, including the following steps: when evaluation information of the food sent by a terminal is received, obtaining an assessment result corresponding to the food, wherein the assessment result includes an assessment result of the cooking quality of a cooking appliance; and determining an evaluation result of the cooking quality of the cooking appliance based on the assessment result, the evaluation information and preset evaluation rules. The invention also discloses a cooking quality evaluation device. According to the scheme of the invention, the evaluation result of the cooking quality of the cooking appliance can be obtained according to the assessment result and the evaluation information, the evaluation result can reflect thesubjective evaluation of users to the cooking quality, and can also reflect the objective and reasonable evaluation of the cooking quality, and thus the evaluation result of the cooking quality of the cooking appliance can be more reasonable.

The invention discloses a mechanical material evaluation method and system. The mechanical material evaluation method and system aim at solving existing technical problems that a traditional scheme is high in subjectivity, and a single decision-making method has limitation. The method includes the following steps that a mechanical material evaluation index system is established, and index weights are determined; the corresponding relationship between evaluation scale language variables and fuzzy measures is determined, material schemes are subjected to expert scoring through the triangular fuzzy number, a fuzzy decision-making matrix is established, the fuzzy decision-making matrix is standardized and weighted, and a weighted standardized judgment matrix is obtained; an ideal solution and a negative ideal solution are determined according to the weighted standardized judgment matrix; the Euclidean distances between the schemes and the ideal solution and between the schemes and the negative ideal solution and grey correlation coefficients are calculated, and the relative close degree and grey correlation similarity of the schemes are calculated according to the result; comprehensive evaluation indexes of the schemes are calculated through a non-linear model according to the relative close degree and the grey correlation similarity in order to carry out priority selection and sorting on the schemes.

The invention discloses an automatic driving vehicle test system. The automatic driving vehicle test system comprises a test site, a dynamometer, a tested vehicle, a communication device, a console and a test background vehicle, the test site is provided with a lane A, a lane B and a lane C, and an induction magnetic stripe is arranged perpendicular to a lane line; and the test background vehicleand the tested vehicle are located at the two ends of the test site respectively, a magnetic signal receiver is arranged on the background vehicle, four wheels of the tested vehicle are in output connection with the dynamometer and fixed through a clamp, the console is in communication connection with the dynamometer, the tested vehicle and the test background vehicle through the communication device, and the console controls the tested vehicle, the dynamometer and the test background vehicle through the communication device to monitor the state and the speed of the vehicles. The test system is small in occupied space and low in cost. The invention further discloses an AEBS and FCWS test method suitable for the tested vehicle, and the method standardizes the test rules of the emergency braking of the vehicle, and enables the test evaluation to be more reasonable and effective.

The invention relates to a method for evaluating the coordinated development of a power grid in a power system. Firstly, on the basis of constructing a comprehensive evaluation index system of a two-level intelligent power grid, the initial weight of the index system is obtained through the analytic hierarchy process. Then, by analyzing the development differences of each secondary indicator, the coordinated development coefficient of the indicators is calculated, and the evaluation value of the secondary indicator is revised; and the weight of the primary indicator is revised by analyzing the regional differences; finally, according to the revised indicator evaluation value and weights to evaluate the coordinated development of the power grid. The invention solves the problem that the weight is difficult to set under the uneven development of regions, can propose more scientific policy suggestions for the relevant regions, rationally develop the smart grid on the basis, and ensure the healthy and coordinated development of the smart grid.

The invention provides a method and device for determining a key node in a space information network, and relates to the technical field of satellite communication. The method comprises the steps of calculating an efficient berweenness of at least one network node in a space network, wherein the efficient berweenness represents the quantity of paths passing through the network node; obtaining usability value of the network node, wherein the usability value represents the effective probability of the network node; determining an expected berweenness of the network node according to the usability value and the effective berweenness; determining a network transmission capacity model of the network node according to the expected berweenness; and determining the network key node in the network node according to the network transmission capacity model, so that the technical problem that quantitative analysis of the network key node cannot be achieved in the prior art is solved.

The invention discloses a driving behavior evaluation method and a system. The method comprises the following steps: acquiring first driving behavior data of a driver in an acquisition time period; preprocessing the first driving behavior data; sorting the first driving behavior data according to an acquisition time sequence; calculating a speed change rate distribution standard deviation, an accelerator pedal opening change rate distribution standard deviation, a brake pedal opening change rate distribution standard deviation, a steering wheel corner change rate distribution standard deviation and a driver fatigue state distribution standard deviation based on the first driving behavior data; acquiring second driving behavior (red light running or overspeed behavior) data of the driver inthe acquisition time period; counting the times of violating traffic rule behaviors by the driver; inquiring the second driving behavior evaluation value corresponding to the frequency of violating the traffic rule behavior, calculating the first driving behavior evaluation value of the driver for the first driving behavior data, calculating the driving behavior evaluation value of the driver, sothat the driving level of the driver can be comprehensively, accurately and objectively reflected.

The invention relates to a comprehensive benefit evaluation method of a large-scale offshore wind farm flexible direct current transmission system based on a fuzzy comprehensive evaluation method. By determining the influencing factors of the comprehensive benefits of the flexible DC transmission system of large-scale offshore wind farms, the analytic hierarchy process is used to analyze and determine the weights of various influencing factors, and a fuzzy comprehensive evaluation model is established. The invention is used to evaluate the comprehensive benefits of the flexible direct current transmission system of large-scale offshore wind farms, and provides a basis for investment decisions of investors and management decisions of managers.

The invention discloses a limited space lane departure simulation system, which comprises a test site, a dynamometer, a tested vehicle, a communication device, a console and a lane simulation device,wherein the four-wheel output of the tested vehicle is connected with the dynamometer, the tested vehicle is located on the dynamometer and at one end of the test site, the tested vehicle is fixed bya clamp, and the vehicle body keeps still relative to the ground; the console is in communication connection with the dynamometer, the tested vehicle and the lane simulation device through the communication equipment; the lane simulation device is provided with a lane line display part and is connected with the console through the communication equipment; and the lane line display part simulates lane lines and an automobile driving state on a road through dynamic change of light. In combination with the lane departure simulation system, the invention further discloses a curve, straight lane and imaginary lane alarm test method, a test process and an evaluation method are provided, and the disclosed test system and method enable the test of vehicle lane departure early warning to be more convenient, reasonable and effective.

The invention discloses a fault propagation risk analysis method and prevention and control method based on a meta-motion chain, and the method comprises the following steps: decomposing the functionsof a whole machine into a plurality of motions through employing an FMA function decomposition method, and further decomposing each motion into a meta-motion; determining the subordination relation of the meta-actions in each motion, and establishing a meta-action chain formed by connecting the meta-actions in the motion in series according to the motion transmission relation from the power source of the motion to the action executing mechanism; and then establishing a risk propagation model under a common influence condition according to the spontaneous probability of the internal influenceof the meta-actions and the coupling strength of the quantitative external action, and comprehensively analyzing the risk criticality of each meta-action from the perspective of global risk influence.According to the method, on the basis of the reliability analysis idea of the meta-action chain, after the weak link is determined, the fault diagnosis work of the meta-action unit forming the meta-action is clearer, the vain fault search in the fault diagnosis is reduced, and the fault diagnosis efficiency is improved.

The invention discloses a computer-vision-based three-dimensional reconstruction method of a workpiece surface. The method comprises: S1, acquiring a microscopic sequence image and performing preprocessing; S2, carrying out fusion on a multi-layer sequence image; and S3, restoring a three-dimensional shape of a workpiece surface and calculating a three-dimensional parameter value. According to theinvention, on the basis of the characteristics of the limited depth of field, multi-layer sequence shooting is carried out on the workpiece surface, image fusion is carried out by software and accurate height information of the workpiece surface is restored, the three-dimensional morphology of the surface is reconstructed, and then the three-dimensional parameters of the roughness of the workpiece surface is calculated. Therefore, the three-dimensional morphology of the common workpiece surface can be evaluated effectively and reasonably.

The invention relates to the technical field of data processing systems or methods specially suitable for administrative, commercial, financial, management, supervision or prediction purposes, and provides a cultivated land ecological sustainability evaluation method and system. The method is used for evaluating county-level cultivated land ecological sustainability in southern red soil hilly regions. The method comprises the following steps: according to a cultivated land ecological current situation of a research region, selecting indexes from four aspects of mine damage, landscape pattern, ecological stability, and ecological space occupation, and constructing a cultivated land ecological sustainability evaluation index system; combining subjective and objective factors, and combining an analytic hierarchy process and an entropy evaluation method based on a Lagrange multiplier method to determine index weights, wherein the cultivated land ecological sustainability evaluation index system comprises a plurality of cultivated land ecological influence factors, and each cultivated land ecological influence factor comprises a plurality of cultivated land ecological sustainability evaluation indexes; according to index values of the cultivated land ecological influence factors and a cultivated land ecological sustainability level, evaluating the cultivated land ecological sustainability.

The invention relates to the field of crypto chip security and particularly relates to a DPA (Differential Power Analysis) security evaluation and countercheck method and device. In the invention, a set of automated platforms, which is suitable to multiple angles and multiple layers and integrates the functions of power-consumption sampling, leakage analysis, evaluation and countercheck, is fitted by adding a novel DPA analysis method and a countercheck method on the basis of a plurality of layers of chip development tools, power-consumption testing tools, various power-consumption leakage analysis model and the like, and the automated platform can be used for assisting chip designers to objectively and reasonably analyze and evaluate a power-consumption resistant capability in a convenient and transparent manner as much as possible. Accordingly, the DPA security evaluation and countercheck method and device disclosed by the invention have the following advantages that: 1, by adding and introducing a novel polar DPA and reverse attack analysis method in the platform, the circuit can be evaluated more reasonably; and 2, by adding a novel KANO countercheck method in the platform, a new countercheck manner is provided for a user.