38results about How to "Reasonable weight distribution" patented technology

The invention provides a method and a device for evaluating fighting capability of an air defense and antimissile system. The method comprises the following steps: establishing a fighting capability evaluation model based on an evaluation index corresponding to a fighting activity, obtaining quantitative indicator data of a to-be-evaluated air defense and antimissile system based on the model, andbuilding a corresponding capability requirement satisfaction degree evaluation matrix; based on the evaluation index, using an interpretative structural modeling method to construct an index networkhierarchical model corresponding to the to-be-evaluated air defense and antimissile system; based on the index network hierarchical model, using a network hierarchical analytic method to calculate theweight corresponding to each evaluation index; and evaluating the comprehensive fighting capability of the to-be-evaluated air defense and antimissile system based on the weight corresponding to eachevaluation index and the capability requirement satisfaction degree evaluation matrix corresponding to the quantitative index data. The method and the device for evaluating fighting capability of theair defense and antimissile system in the invention can deeply analyze and directly reflect the internal logical relationship of the air defense and antimissile indicator system, so that the weight distribution between the indicators is more reasonable, thereby effectively improving the comprehensiveness, effectiveness and credibility of the evaluation results.

The invention provides a flying wing layout aircraft which comprises an aircraft body (1), aircraft wings (2), ailerons, an elevator (5) and double vertical fins (4), wherein the aircraft body (1) and the aircraft wings (2) are integrated; the ailerons (3) are positioned on the outer sections of the aircraft wings (2), and are used for rolling control in level flight; the elevator (5) is positioned at the rearmost part of the aircraft body (1), and is used for pitching control in level flight; and the dual vertical fins (4) are positioned at the rear part of the aircraft body (1), and are used for enhancing the flight direction safety in level flight. The flying wing layout aircraft provided by the invention has the advantages that the aircraft body integration technique inherits the excellent pneumatic property of the flying wings, and larger internal space is provided; the weight distribution is more reasonable, and the structure is lighter, so that the load and the voyage are increased; front air screws which are arranged in an engine and tilt and rear air screws which are fixed and can be accommodated in the vertical fins achieve the capability of vertical/short take-off and landing, and the interference to the whole pneumatic appearance of the aircraft is lowered greatly; and the connection shaft design among engines greatly improves the reliability of a dynamic system, avoids the dangerous situation of invalidity after taking off, and guarantees the flight safety in vertical/short take-off and landing.

The invention provides a frame level feature aggregation method for video target detection, and relates to the technical field of computer vision. The invention provides a frame-level feature aggregation method for video target detection. The method comprises the following steps: firstly, extracting deep features from a single-frame image through a feature network; extracting an inter-frame optical flow by using an optical flow network FlowNet; aligning the frame-level features of the adjacent frames to the current frame based on the optical flow to realize frame-level feature propagation; finally, calculating the scaling cosine similarity weight through the mapping network and the weight scaling network, and using the scaling cosine similarity weight to aggregate the multi-frame featuresto generate the aggregated features. According to the frame-level feature aggregation method for video target detection provided by the invention, the weight distribution is more reasonable, and the aggregated features are input into the video target detection network, so that video detection in complex scenes such as motion blur, low pixels, lens zooming and shielding can have a better detectioneffect and robustness.

The invention discloses an attribution method and device of information putting effects. The method comprises steps of after counting information conversion frequency and information reaching frequency brought by each channel combination consisting of a single channel combination put by an information putting party within a set period, determining the information conversion rate of each channel combination according to the information conversion frequency and the information reaching frequency brought by each channel combination; determining the weight of each single channel in each channel combination according to the information conversion rate of each channel combination; and based on the weight of each single channel in each channel combination, determining the information conversion frequency brought by each signal channel. Compared with the current attribution method of information putting effects, the provided method is characterized in that effects caused by different channel cooperation are fully considered, so it can be ensured that the distribution weight corresponding to each signal channel is quite precise and proper, and problems of improper and inaccurate attributionin the current attribution method of information putting effects are solved.

The invention discloses a fuzzy mathematics-based gas pipeline third-party damage risk assessment method, which can realize quantitative assessment of gas pipeline third-party damage risk. According to the technical scheme, various possible conditions of a gas pipeline third-party damage accident are systematically analyzed by adopting an analytical hierarchy process and an MMESE system theory for characteristics of diversity, complexity, uncertainty and the like of the gas pipeline third-party damage accident, a three-level hierarchical structure model is built, and a triangular fuzzy number is introduced according to a fuzziness characteristic, so that a relative importance degree among factors is quantitatively represented, the limitation of the analytical hierarchy process is overcome, human subjective influence in a conventional assessment method is reduced, and weight allocation is more accurate, objective and reasonable. The method has the advantages that the limitation of the analytical hierarchy process is overcome, and the subjective influence of the human factors in the conventional assessment method is reduced; and the weight allocation is reasonable, and an assessment result is objective and accurate.

The invention discloses a method for estimating and calculating the strength of a power transmission pole tower material on the basis of a rough-fuzzy set. The method comprises the following steps of performing reduction on an index set by using a rough set theory; determining evaluation index weight by a method that subjective weight and objective weight are combined; according to an established evaluation order set, comprehensively evaluating and calculating the actual strength of the tower material by using a fuzzy mathematical method. The typical uncertain problem that the factorial validity affecting the strength of the tower material is not clear in an evolutionary process can be solved. The method can provide an important scientific criterion to the safety evaluation of an iron tower structure.

The invention discloses a segmented tree disparity map acquisition method based on improved matching cost. The method comprises the following steps: carrying out pixel point acquisition on a left image and a right image; establishing a matrix; performing cost calculation; converting the undirected connected graph; converting the minimum spanning tree; calculating the weight between adjacent pixelpoints; cost aggregation; acquiring left and right disparity maps wherein left and right pixels are consistent; introducing depth information and color information; performing cost aggregation again;obtaining a final disparity map. For the defect that ambiguity matching is easily generated in a weak texture region, color and gradient multi-dimensional information components are introduced, so that the weight distribution of a window is more reasonable, and the cost amount of pixel points in the weak texture region is enhanced; a novel grouping strategy is provided, and pixel points conformingto parallax consistency are divided to the same spanning tree; and a more accurate matching result can be generated while the time efficiency is kept.

The invention relates to a novel badminton. The badminton contains an independent rotating component (15) which is not adhered to a badminton skirt (12), and the rotating component (15) has various kinds of structures, wherein, optimally the rotating component comprises a plurality of rotating wind resistance fins (152) or rotating wind resistance wall surfaces (153); and optimally the rotating wind resistance fins (152) or the rotating wind resistance wall surfaces (153) and the cross section of the badminton form an inclined angle (B) along an axis direction. The independent rotating component (15) has higher efficiency so as to more conveniently control weight, center-of-gravity position and weight distribution of the badminton; and the rotating component (15) and the badminton skirt (12) of the badminton can be respectively made into an independently molded fitting so as to enhance overall performance and facilitate production. The invention further relates to a badminton body containing the rotating component (15).

The invention discloses a method for calculating a ship weight longitudinally distributed load density. By adopting the method, the situation that partial weight losses or distortion of equipment at aship bow / stern can be avoided, so that weight distributed load density is more reasonable and accurate. According to the method for calculating the ship weight longitudinally distributed load density, the ship bow and the stern can serve as complete standard theoretical station distances correspondingly, 20 standard theoretical station distances in a traditional method are expanded to be 22 standard theoretical station distances, and then weight of each equipment or goods on a ship is equivalently distributed on the standard theoretical station distances in theoretical station distance ranges where the equipment or the goods are located according to a static force equivalence principle; and the weight distributed in the ship bow standard theoretical station distance and the stern standard theoretical station distance is converted into two standard theoretical station distances adjacent to the ship bow standard theoretical station distance and the stern standard theoretical station distance, and finally weight distribution of the 20 standard theoretical station distances of a hull, namely, the ship weight longitudinally distributed load density, is obtained. Partial weight lossesor distortion of the equipment at the ship bow / stern is avoided, and weight distributed load density is more accurate.

The invention relates to a short-term load prediction technology of a power system, and aims to provide a federated learning load prediction method based on dynamic weighted aggregation. According to the method, an edge computing device adopts local data to carry out neural network training, network parameter change vectors are obtained and uploaded to a cloud server to carry out pairwise similarity calculation to generate a similarity matrix, and a consistency vector between local models in the current round of training is calculated. And then weighting network parameter changes of different local models based on the consistency between the accuracy of each round of local model for the server verification set and the local models to realize a local model cleaning effect, issuing the updated global model to the edge computing device by the cloud server, and repeating the above steps to realize the cleaning effect of the local models. And the server reaches the preset training round number. The problem that a dirty model possibly trained by a local model and data isomerism in federal learning cannot be effectively avoided in the prior art is solved, and convergence of global model training is accelerated.

The invention provides a professional learning ability evaluation method based on an interval neutrosophy theory. The method comprises the following steps: determining an evaluation object, an evaluation index, an evaluation expert and a weight thereof; determining index weights: obtaining evaluation values of evaluation experts on the evaluation indexes, and determining weights of the indexes; evaluating a key index: obtaining an aggregated decision matrix of the review expert, setting the key index and calculating the certainty degree, and judging whether the key index is qualified or not according to a certainty degree threshold value; and comprehensive optimization evaluation: carrying out weighted similarity calculation on the objects with qualified key index evaluation, and determining the professional learning ability of the evaluation objects according to weighted similarity sorting. The invention further provides a professional learning ability evaluation system based on the interval neutrosophy theory. According to the method and system, the interval neutrosophy theory is introduced into the professional learning ability evaluation process of the students, so that the accuracy and effectiveness of decision making can be effectively improved; and weight distribution is more reasonable.

An intelligent subway rail welding vehicle comprises a frame (1), a cab (4), a functional room (2), an operation room (5) and a welding machine room (21) are arranged above the frame (1), a power transmission system (6) and a hydraulic oil tank (14) are arranged in the functional room (2), an office area and an operation area are arranged in the operation room (5), a welding machine (19) and a welding machine take-up and pay-off device (20) is arranged in the welding room (21). A front driving bogie (9), a diesel tank (7) and a rear driving bogie (10) are arranged below the frame (1); escalators (13) are arranged on the two sides of the front drive bogie (9); and an overturn door (17) is arranged at the end of the welding machine room (21). The intelligent subway rail welding vehicle can automatically run to a rail welding site to conduct online welding, offline welding and base welding, and if extreme derailment occurs, the vehicle can be rapidly lifted and restored; all operations inthe operation process are designed mechanically and automatically.

The invention discloses a polishing main machine installing structure with a stable structure. The polishing main machine installing structure comprises a swing beam and at least one polishing main machine installed on the swing beam, wherein the grinding main machine comprises a base, a main shaft, a grinding head and a driving motor, the main shaft is rotationally installed on the supporting frame, the driving motor is fixedly installed on the motor installation base to drive the main shaft to rotate, the grinding head is installed at the lower end of the main shaft, a first installing fitting surface is formed on the outer side wall of the supporting frame below the motor installing base, a first supporting clamping groove is formed in the upper end of the first installing fitting surface, a second installing fitting surface is arranged on the outer side wall of the swing beam, and a second supporting clamping groove is formed in the upper end of the second installing fitting surface. Compared with the prior art, the mode that the base body of the polishing main machine is installed on the side portion of the swing beam is adopted, so that the weight distribution of the whole structure is more reasonable, and meanwhile the polishing main machine can be conveniently installed and uninstalled from the swing beam, the structure of the swing beam is simplified, and the production difficulty and cost of the main beam are reduced.

The invention discloses clothes which can keep a constant temperature, can control the constant temperature speed and does not need to be charged. The invention belongs to household articles for daily use. The green constant-temperature clothes overcome the technical defects that the constant-temperature speed of the constant-temperature clothes in the prior art cannot be controlled so that the temperature of the clothes is suddenly high or low, heating or cooling is frequently started, and charging is needed. The clothes mainly comprise a power supply device (3), a heating and refrigerating speed regulator (2), a reversing switch (6), a mechanical temperature controller (10), a temperature changing box (12), a pump (13), a rubber hose (5), a component bearing medium (7), a lead (9), a liquid (which is not marked in the rubber hose (5) and a water tank (12-5)) and the like. According to the green constant-temperature clothes, the liquid is cooled or heated according to the refrigerating and heating principle of the semiconductor cooling piece (12-4), and then the liquid is circulated in cycles through the pump (13) and the rubber hose (5). And the constant-temperature comfort is successfully kept for people.

The invention relates to the field of horizontal lathes, and particularly relates to a combined type series horizontal numerically controlled lathe. The combined type series horizontal numerically controlled lathe comprises a lathe body, guide rails, a feeding box, a headstock, a slide carriage box and a tailstock. The combined type series horizontal numerically controlled lathe is characterized in that at least one horizontal outer guide rail parallel to the guide rails is arranged on the outer side of the lathe body, wherein a plurality of connecting bodies are arranged between the horizontal outer guide rails and the lathe body, and the connecting bodies are connected with the lathe body through bolts; the lower surface of a large slide carriage is provided with a matching surface matched with the two guide rails and the horizontal outer guide rails, the upper surface of the large slide carriage is provided with a middle slide carriage, the middle slide carriage is provided with a combined equipment installation area, the combined equipment installation area is provided with a platform and an installation support extending outwards, and the combined equipment installation area is provided with functional combined equipment. Compared with the prior art, the combined type series horizontal numerically controlled lathe has the advantages that the combined type series horizontalnumerically controlled lathe can be combined with an outer circle grinding head, an inner circle grinding head, an end face grinding head, a curve grinding head, a threaded grinding head, a rail roller grinding head, a bearing grinding head and various milling heads, the combined type series horizontal numerically controlled lathe has multiple functions, and the worldwide problem of offshore maintenance of large offshore ships is solved particularly.

The invention discloses a linear oscillation motor. The linear oscillation motor comprises a shell, a linear vibration module and a reverse vibration module are arranged in the shell, the linear vibration module and the reverse vibration module are coupled through the shell; the linear vibration module comprises a sliding piece and at least one iron core set; the sliding piece is arranged in the shell in a sliding mode in the axial direction; the sliding piece extends out of the shell to form an output shaft; magnetic steel is arranged on the sliding piece, plate springs are arranged at the two ends of the sliding piece, the sliding piece is connected with the shell through the plate springs, the iron core set comprises two E-shaped iron cores arranged on the two sides of the sliding piecerespectively, windings are arranged on the E-shaped iron cores, and the reverse vibration module is arranged in the shell and is far away from the output shaft. The structure is simple, implementation is facilitated, a center shaft can move in the axial direction to be output, output is more stable, and the using effect of the whole structure is improved.

The portable network equipment maintenance device comprises a front cover and a rear cover which are detachably connected, a labeling machine is arranged in the space in the front cover, a network cable clamp is arranged at the top of the space in the rear cover, and a cable tester and a tool box are arranged at the bottom of the space in the rear cover in parallel; the cable measuring instrument comprises a fixed cable measuring instrument and a movable cable measuring instrument which are detachably connected, and the fixed cable measuring instrument is connected with the network cable clamp to form a fixed handle of the network cable clamp. A labeling machine, a network cable clamp, a cable tester and common consumables in the operation and maintenance process of network equipment are integrated in a compact space formed by the front cover and the rear cover, so that the portability of the operation and maintenance tool is improved.

The invention relates to special artificial feather for a badminton. The special artificial feather comprises feather (11) and a feather stalk (12), and is characterized in that the transverse cross section of the feather stalk (12) is in a T shape. The special artificial feather has the optimal scheme that the upper transverse cross section of the feather stalk (12) is in the T shape, and the lower half part of the feather stalk (12) is changed into a cross shape through transition. The invention also relates to the badminton manufactured by the special artificial feather.

A domestic cutting and chopping dual-purpose kitchen knife comprises a knife handle and a knife main body, the knife main body is composed of a chopping knife body close to the knife handle and a cutting knife body, the included angle formed by the two faces of the chopping knife body is greater than that formed by the two side faces of the cutting knife body, and knife edges of the two knife bodies are connected into a whole smooth knife edge. The domestic cutting and chopping dual-purpose kitchen knife can be conveniently used for cutting vegetables and chopping food, saves effort when being used, and is good in use effect.