34results about How to "Meet actual application needs" patented technology

The invention relates to a preparation method of a modified mesoporous silica-doped solid-state polymer electrolyte for a lithium-ion battery. The method comprises the following steps: dissolving polymer matrix into a solvent to prepare a polymer solution; with lithium perchlorate (LiClO4) as a lithium salt, dispersing the modified mesoporous silica into the obtained polymer solution; carrying out dispersing and casting to form a film; and after the solvent volatilizes, obtaining a composite polymer film, namely the composite polymer electrolyte for the lithium-ion battery. The method is simple to operate; the solid-state polymer electrolyte with high mechanical property and high ionic conductivity is easy to obtain; and the solid-state polymer electrolyte has a wide application prospect in the aspect of a power lithium-ion battery car.

The invention discloses an artificial synthesizing method of training samples and a verification code recognizing method based on the samples. The artificial synthesizing method of the training samples comprises the following steps: S1, generating a verification code lexicon; S2, generating a background photo gallery; S3, screening rectangular background blocks; S4, collecting typeface sets; S5, randomly matching words and expressions with the background blocks; and S6, taking the background blocks which have been written with the words and expressions as samples. The invention further discloses a verification code recognizing method based on the training samples. The verification code recognizing method based on the training samples comprises the following steps: S1, feature extraction; S2, sequence calibration; and S3, correction of recognition results. The training samples are acquired by a mode of synthesizing samples artificially, only recognized character types need to be set, but samples in the corresponding types can be generated, good effect can be achieved by adding a small amount of actual website samples, and a large number of labors and financial resources for sample collection are reduced while the samples are diversified.

A TCM (Traditional Chinese Medicine) complexion automatic sorting method applying a superficial layer neural network belongs to the field of computer vision. The designed superficial layer neural network has five layers and adopts three different layer structures including an input layer, a characteristic extraction layer and an output layer. The input layer is composed of a convolution layer and a rectified linear unit (ReLU). The characteristic extraction layer is composed of three layers of network, wherein each of the first two layers is composed of a convolution layer and a ReLU activation function; one of the convolution layer and the ReLU is subjected to batch normalization and a pooling layer is added behind the second ReLU of the characteristic extraction layer; the third layer of the characteristic extraction layer is a whole connection layer connected with a ReLU in a followed manner. The output layer is composed of the whole connection layer and is provided with a followed softmax sorter. The method provided by the invention is distinctively advantaged in sorting precision and has invariance property in distortion such as zooming, translation, rotation and the like, is high in robustness and capable of improving sorting precision effectively. Therefore, the depth learning theory is applied to TCM face diagnose objectivity study.

The invention relates to a multi-range capacitance measurement circuit, device and method. The multi-range capacitance measurement circuit comprises a square wave generation circuit, a waveform shaping circuit, a singlechip microcomputer minimum system and a display, wherein the square wave generation circuit comprises an NE555 chip, a resistor network and a reference capacitor; the resistor network comprises a resistor matrix and a first multi-way switch connected with the resistor matrix; the resistor matrix comprises multiple resistors with different resistance values; the first multi-way switch comprises multiple first switches connected with the resistors one by one and a first control chip for controlling the multiple first switches; the multiple resistors are connected in parallel. According to the multi-range capacitance measurement circuit, a singlechip microcomputer controls the first control chip to turn on different first switches, to change connected resistors of the resistor matrix and adjust the range of the multi-range capacitance measurement circuit, so as to measure to-be-measured capacitors with different capacitance values; the multi-range capacitance measurement circuit is simple, easy and convenient to operate and adjustable in measuring range, and can meet an actual application requirement.

The invention belongs to the technical field of ceramic materials, and discloses a giant dielectric constant strontium titanate dielectric ceramic and a preparation method thereof. The chemical formula of the ceramic is Sr1-xEuxTiO3, wherein x is more than or equal to 0.01 and less than or equal to 0.015. The preparation method comprises the following steps: proportioning SrCO3, Eu2O3 and TiO2, mixing, and carrying out ball milling; drying the ball-milled raw materials, sieving, pre-sintering at 1000 DEG C for 3 hours, and mixing and ball-milling the pre-sintered powder; drying and sieving the ball-milled raw materials, adding a binder into the obtained powder, sieving, granulating, pressing into a green body, and discharging glue; and sintering the blank body after complete glue removal at 1400 DEG C in N2 atmosphere, and preserving heat for 6 hours to obtain the final sample. According to the invention, the Sr1-xEuxTiO3 dielectric ceramic is prepared through doping modification by adopting a traditional solid-phase method, the dielectric constant is improved, the lower dielectric loss is kept, and the dielectric property of the ceramic material is further improved, so that the actual application requirements are better met.

The invention discloses a high-spectral-efficiency sparse code multiple access method of a low-earth-orbit satellite satellite satellite-earth link, relates to the technical field of information and communication, and aims to solve the problem of spectrum resource shortage of the Internet of Things of low-earth-orbit satellites. The invention aims to solve the problem of spectrum resource shortageof the low-earth-orbit satellite Internet of Things. A high spectral efficiency sparse code multiple access method of a low earth orbit satellite satellite satellite-ground link is provided. According to the method, a high spectral efficiency frequency division multiplexing technology is used for replacing traditional orthogonal frequency division multiplexing, carrier spacing is compressed at asending end, wide-area coverage of massive terminal users and efficient utilization of spectrum resources are achieved, and compared with a traditional sparse code multiple access method, the method has higher spectral efficiency performance.

The invention provides a preparation method of a high-strength polyvinyl alcohol hydrogel film. The method comprises the following steps: taking polyvinyl alcohol as a raw material, firstly carrying out polyvinyl alcohol carboxylation, and adding gelatin and chitosan to achieve the purpose of synergistic interaction, constructing a polyvinyl alcohol physicochemical cross-linking system, and preparing the high-strength multi-network cross-linked hydrogel film. Due to the addition of the gelatin and the chitosan, the polyvinyl alcohol hydrogel film has higher strength and elongation, and the hydrogel film is endowed with unique antibacterial property and biocompatibility. The obtained polyvinyl alcohol hydrogel film has high tensile strength, has excellent moisturizing performance and antibacterial performance in a physiological environment, and can be used in the aspects of medical dressings and the like.

The invention discloses a method for testing a motor experience distortion index. The method for testing the motor experience distortion index comprises the following steps: acquiring a motor parameter, wherein the motor parameter is a linear parameter or a nonlinear parameter; selecting a specified frequency of the distortion test and generating a single-frequency voltage signal with the specified frequency; predicting the predicted displacement of the motor vibrator under the excitation of the single-frequency voltage signal according to the linear parameter or the nonlinear parameter of themotor; adjusting the amplitude of the single-frequency voltage signal according to the target displacement value of the motor oscillator and the maximum value of the predicted displacement so as to enable the maximum value of the predicted displacement to approach the target displacement value; acquiring vibration data of the motor vibrator under the excitation of the single-frequency voltage signal after amplitude adjustment; and calculating the motor distortion from the vibration data. Compared with the prior art, the method for testing the experience distortion index of the motor can reflect the distortion condition of the motor in practical application.

The invention discloses a preparation method for preparing a multi-grain-size heterogeneous aluminum alloy plate through composite rolling. The method comprises the four specific procedures of surfacerolling deformation, homogenizing annealing treatment, non-uniform rolling deformation and recrystallization annealing treatment. According to material performance requirements, computer programmingis utilized, rolling tool paths of different patterns are compiled, and aluminum alloy plates of different thicknesses are obtained; the unequal-thickness aluminum alloy plate are fully annealed, so that the microstructure of the unequal-thickness aluminum alloy plate recovers to an annealed structure before deformation; non-uniform rolling deformation is carried out on the annealed unequal-thickness aluminum alloy plate to obtain an aluminum alloy rolled plate with a flat surface and uniform thickness; and the multi-grain-scale heterogeneous aluminum alloy plate is obtained through recrystallization annealing.

The invention relates to the technical field of information processing, in particular to a remote monitoring method and system for automatic operation of numerical simulation. The method for automatic operation of numerical simulation comprises the steps that a local server automatically logs in to a remote super computer without a password; the local server uploads and submits an obtained data file needed by numerical simulation and a numerical simulation operation to be executed to the remote super computer, and the remote super computer executes the numerical simulation operation to carry out numerical simulation; during numerical simulation, the local server regularly detects whether numerical simulation normally works in the remote super computer or not according to the set time interval, wherein if not, the numerical simulation operation not normally operating is submitted again. According to the remote monitoring method and system for automatic operation of numerical simulation, labor cost of the numerical simulation can be reduced, the loss caused by the operation running error can be reduced, the numerical simulation efficiency can be improved, and the actual application requirement can be better met.

The invention discloses a cuprous ion selective electrode. The cuprous ion selective electrode is a mixed crystal membrane electrode with a selective sensitive membrane consisting of cuprous sulfide and silver sulfide, wherein the weight of the cuprous sulfide accounts for 40-60% of the total weight of the selective sensitive membrane, and the weight of the silver sulfide accounts for 60-40% of the total weight of the selective sensitive membrane. The cuprous ion selective electrode can be used for quickly and accurately measuring the activity of cuprous ions, the needed time is only several minutes, the relative error is smaller than or equal to 10%, the detection limit is 1*10-6 to 1*10-2 mol/L, and the actual application need can be well met.

The invention discloses a multi-channel physiological signal somatosensory posture recognition method based on a GS-LSSVM. The method comprises the steps: 1, collecting a human body physiological signal original sample; 2, performing noise reduction through a wavelet threshold method; 3, extracting the physiological signal features; 4, establishing a multi-channel physiological signal somatosensory posture LSSVM recognition model; 5, carrying out PSO optimization training on a multi-channel physiological signal somatosensory posture SVM recognition model; 6, carrying out somatosensory posturerecognition model test based on the optimal multichannel physiological signals. The multi-channel physiological signal somatosensory posture recognition method based on the GS-LSSVM is high in recognition precision, good in real-time performance and good in recognition robustness.

The invention provides a manufacturing method of a double-phase heterogeneous reinforced weldless box. The method comprises four processes as follows: punch forming of a box body, stress relief annealing treatment, installation of a reciprocating hydraulic deformation device and reciprocating hydraulic deformation. The method is characterized in that stainless steel sheets are punched with a punchforming technology, and a main body of a box part is obtained; a residual deformation structure in the part after the punch forming is eliminated by the stress relief annealing treatment, and deformation stress is restored; and for the process of reciprocating hydraulic deformation, martensitic transformation of an austenite structure at the part is induced by strain in a loading area of the box,box strength is increased by the martensitic structure, the austenite structure at the other part is retained, and therefore, the box has good toughness.

The invention discloses a method and device for determining the actual position of an object in a fisheye camera image. The method comprises the following steps: determining an included angle between the positive direction of the fisheye camera image and the positive direction of a world coordinate system; determining a fitting polynomial of the installation height of the fisheye camera and the coordinate of the object in the fisheye camera image with respect to the actual distance between the coordinate of the object in the fisheye camera image and the imaging center of the fisheye camera image; and calculating the actual position of the object in the fisheye camera image under the world coordinate system. According to the invention, the actual position of the object in the image in the real world coordinate system is efficiently and accurately estimated. The mounting plane of the fisheye camera is parallel to the ground below the mounting position of the fisheye camera; meanwhile, the included angle between the positive direction of the image of the fisheye camera and the positive direction of the world coordinate system and the installation height of the fisheye camera are determined by means of the calibration plate. The efficiency is high.

The invention discloses an active defense guidance method of a three-body confrontation strategy based on differential game, and the method specifically comprises the following steps of: establishing a three-body confrontation differential game guidance kinematics equation; establishing an active defense guidance system with a feedback form in an active defense scene based on the established three-body confrontation differential game guidance kinematics equation, wherein the input of the active defense guidance system comprises feedforward control and feedback optimal control; the active defense guidance system controls a target missile not to be hit by an attack missile and controls a defense missile to effectively intercept the attack missile. According to the method, a nonlinear missile model is adopted for research, and the characteristics of high coupling, complex nonlinearity and the like of the missile are fully considered. The designed differential game guidance law better meets the requirements of practical application.

The invention provides a gel electrolyte, a preparation method of the gel electrolyte, a sunlight-driven self-charging supercapacitor and a self-charging method of the sunlight-driven self-charging supercapacitor, and relates to the technical field of gel electrolytes. The gel electrolyte provided by the invention has relatively high cation migration characteristic, low thermal conductivity and low specific heat capacity. The invention further provides a sunlight-driven self-charging supercapacitor which comprises a first photo-thermal conversion film electrode, a second photo-thermal conversion film electrode and the gel electrolyte loaded between the first photo-thermal conversion film electrode and the second photo-thermal conversion film electrode, wherein the first photo-thermal conversion film electrode and the second photo-thermal conversion film electrode are oppositely arranged in parallel; the exposed part of the gel electrolyte is packaged with a packaging material; the first photo-thermal conversion film electrode and the second photo-thermal conversion film electrode are respectively bonded with a metal lead and are used for being externally connected with a load. The super capacitor provided by the invention can complete self-charging only by means of sunlight without the help of an external auxiliary charging system, so that direct and efficient conversion from solar thermal energy to electric energy and storage and utilization are realized.