66results about How to "Large room for optimization" patented technology

The invention discloses a multi-network cooperative network optimization and energy saving method and system, and belongs to the field of mobile communications. The method comprises the following steps: computing neighbor cell overlapping coverage of network cells, screening out overlapping coverage neighbor cells of the network cells, and adding the network cells and the overlapping coverage neighbor cells of the network cells as energy saving cells into an energy saving cell list; and determining energy saving time periods of each day, computing predicted traffic of the cells in the list at a next energy saving time period according to history traffic of the energy saving time periods and traffic of a previous time period, determining dormant cells in the energy saving cell list according to the predicted traffic, determining compensation cells of the dormant cells in the energy saving cell list, shutting down the dormant cells, and transferring services on the dormant cells onto other compensation cells. The method and the system support cross-network and cross-equipment-manufacturer multi-network cooperative optimization and energy saving analysis. Compared with the conventional manual optimization, the method and the system have the advantages that a large amount of labor cost can be saved, and the network optimization and energy saving effects are enhanced greatly.

The invention relates to a multi-parameter time-varying robot spraying method which comprises the following steps: firstly, establishing a free-form surface multivariable spraying model which uses flow of a spraying gun, a spraying distance and a spraying speed as model independent variables; then discretizing an original spraying path into a plurality of sections of minute sub paths, distributing initial values of time-varying spraying process parameters to each sub path and on the basis of the established multivariable spraying model, predicting distribution of an initial coating thickness; next, on the basis of a prediction result on distribution of the coating thickness, carrying out combined optimization on the time-varying process parameters to obtain the optimal process parameters on each section of sub path and finally, obtaining a multi-parameter time-varying spraying path of a surface to be sprayed. According to the method disclosed by the invention, various process parameters are used as variables; by the multivariable spraying model and a free-form surface coating thickness predicting method, the optimal process parameters on the sub paths of the discretized spraying path are obtained; dynamic optimization of the process parameters is implemented; the multi-parameter time-varying robot spraying method has the important effect of improving spraying operation efficiency, quality and safety of a robot.

The present invention provides an all-inorganic perovskite solar cell based on transition metal ions doped CsPbBr<3> and a preparation method and an application thereof. Specifically, the invention isthat conductive glass is first spin-coated with an electron transfer layer and subsequently spin-coated with a lead bromide solution mixed with transition metal ions, then is spin-coated with a cesium bromide solution repeatedly; the non-porous perovskite film with a high crystallinity and a large grain size is prepared; and finally the all-inorganic perovskite solar cell based on transition metal ions doped CsPbBr<3> is assembled by blade coating of carbon back electrode. The invention reduces the defect density in the perovskite film by doping transition metal ions, simultaneously the energy band structure is adjusted; the energy loss of charge migration is reduced; and the separation, extraction and transfer of photogenerated charges and charge recombination are reduced, thereby the photoelectric conversion efficiency and long-term operation stability of the cell are improved. The invention has the advantages such as simple and feasible preparation method, large optimization spaceof material combination, no noble metal back electrode or hole transporting layer and low cost.

The invention provides a video auditing method and device based on multiple levels and multiple models, a computer readable storage medium and computer equipment, and the method comprises the steps: inputting a video picture obtained after a video stream is processed into a first-level auditing model, and obtaining a first violation score; inputting the video picture of which the first violation score is greater than a first preset threshold into a second-level auditing model to obtain a second violation score; processing the second violation score according to a preset machine learning algorithm to obtain a final violation score of the video stream, and outputting an unqualified auditing result of the video stream when judging that the final violation score is higher than a second presetthreshold. According to the invention, a multi-level and multi-model structure and an xgboost fitting score mode are adopted, so the redundant overhead is reduced while multiple models are used, and the online video auditing efficiency is improved efficiently.

The invention relates to a scheduling method considering incoming water correlation cascade hydropower stations, the method is characterized in that, the method comprises the following steps: 1) a cascade hydropower stations random scheduled mathematical model is established; 2) random natural incoming water variables related to the cascade hydropower stations are sampled, and a sample matrix Rs is obtained; 3) a vector quantization algorithm is adopted to arrange all sample scenes in sample matrix Rs, various sample scenes are distributed to different scene kinds, and core scene sets of various scene kinds are acquired; 4) according to the cascade hydropower stations random scheduled mathematical model and core scene sets, a sensitivity analysis method is adopted to randomly schedule, schedule target objective function YRs of all sample scenes in the sample matrix Rs are acquired; 5) the schedule target objective function YRs are calculated to acquire probability statistics information of scheduling benefits. Compared with the technology in the prior art, the method provided by the invention has advantages of fast, reliability, high selectivity, considered incoming water correlation, wide application range and the like.

The invention discloses a symbol-level precoding method in a multi-user downlink CoMP, which adopts an MPSK modulation mode. According to the signal coefficients and target transmission information between the base station and the user, the antennas of the two base stations are designed to transmit precoding vector to control the interference between users and between users to serve multiple users. For the received useful signal, the equivalent signal-to-noise ratio (SNR) of the received signal is obtained by using the effective signal measurement scale and is used as the signal quality measurement index of the received signal. The precoding vectors of antennas for two base stations are obtained by solving the problem of maximizing the minimum equivalent signal-to-noise ratio (MESNR). Theuser exclusion strategy is used to find the optimal precoding vectors for antennas and compare them with the threshold of SNR to determine the precoding scheme. The symbol-level precoding scheme of the invention considers the concrete sending symbols, utilizes the constructiveness of the multi-user interference, converts the traditionally considered harmful interference into a beneficial factor, reduces the interruption probability of the receiving end, and improves the throughput of the system.

The invention discloses an intelligent replenishment method based on end-to-end learning. The method comprises the following steps: S1, acquiring data required by a mathematical model; S2, generatingsales features related to the sales volume according to the obtained data; S3, taking the characteristics predicted by the sales volume as original input values; establishing a mathematical model according to the total operation cost; the total operation cost being used as a loss function; solving and directly outputting suggest replenishment amount. Different from reduction of manual preprocessing and follow-up processing, direct output from original input to final output and direct output of results after replenishment by taking sales prediction features as original input values, end-to-endalgorithm learning is realized, so that the algorithm efficiency is improved, and the optimization space is expanded. The invention further provides a storage medium. The invention further provides anintelligent replenishment system. The invention further provides an intelligent replenishment device.

The invention discloses a novel waveguide polarizer, which comprises a square waveguide (1), a metal partition plate (2) and two waveguide gradient parts (6 and 7), wherein the metal partition plate (2) comprises a receiving unit (3), a transmission unit (4) and a radiation unit (5) which are sequentially connected; the width of the metal partition plate (2) is equal to the length of the inner side of the square waveguide (1); the metal partition plate (2) is arranged at the axisymmetric position of the square waveguide (1); one end of the metal partition plate (2) is in contact with a square public port at one end of the square waveguide (1) and divides the square public port into two rectangular ports; the two waveguide gradient parts (6 and 7) are connected with the two rectangular ports respectively; two orthogonal wave beams received by the square waveguide (1) are converted by the metal partition plate (2); and a left-handed or right-handed circularly polarized signal is achieved by a phase difference generated between the received and converted wave beams. By the novel waveguide polarizer, good properties of the return loss, the insertion loss and the phase difference can be obtained.

The invention discloses a multi-cell cooperative transmission scheme based on interference utilization, and the scheme comprises the steps: configuring M antennas in a base station of each cell, enabling the number of users served in each base station to be K, and configuring single antennas for the served users; the two adjacent base stations send information to all the service users in the two cells at the same time; secondly, respectively calculating measurement scales of interference signals which are received by users in a cell and are transmitted by a base station in the cell and are leaked to users served by an adjacent cell by the base station in the cell by adopting a symbol-level pre-coding mode; designing a precoding vector of the base station to maximize the sum of a minimum measurement scale of a service user receiving signal and a minimum measurement scale of a leakage signal in a cell of the base station; and respectively solving the optimal precoding vectors of two adjacent cell base stations by adopting a distributed processing method, and determining a precoding scheme. The signal quality of the signal received by the overall receiving end is improved, the averagesymbol error rate of the receiving end is reduced, and the throughput of the system is improved.

The invention discloses a wing high-lift device and a wing high-lift method. The wing high-lift device comprises a wing upper surface, a wing lower surface, a wing rear edge and a wing high-lift structure, wherein the wing high-lift structure comprises a first jet cavity and a second jet cavity arranged between the wing upper surface and the wing lower surface, the isolation plate is arranged between the first jet flow cavity and the second jet flow cavity; the wing lift augmentation structure further comprises a first jet flow opening and a second jet flow opening which are formed in the rearedge of the wing, the first jet flow opening communicates with the first jet flow cavity, the second jet flow opening communicates with the second jet flow cavity, the first jet flow cavity is located between the upper surface of the wing and the isolation plate, and the second jet flow cavity is located between the lower surface of the wing and the isolation plate; and therefore, the structure of the synthetic double-jet exciter is formed. Based on the double effects of the Coanda effect and the virtual trailing edge flap generated by the synthetic double-jet technology, the traditional circular rector lift augmentation technology and the virtual trailing edge flap effect are combined, the purpose of lift augmentation is achieved, and the lift augmentation efficiency of the traditional circular rector lift augmentation technology is improved.

The invention discloses a real-time flight control navigation system based on a ZYNQ processor. The system comprises a real-time navigation core module, a GPS receiver, an inertial navigation combination, a display unit and a radar sensor, wherein the GPS receiver is connected to the real-time navigation core module through an RS232 bus, the inertial navigation combination is connected to the real-time navigation core module through an RS422 bus, the display unit is connected to the real-time navigation core module through a VGA wire, and the radar sensor is connected to the real-time navigation core module through an RS485 bus. The system gives a full play to advantages of a heterogeneous multi-core processor to the maximum extent, so that the computing delay time is shortened, the optimized space of the system is expanded, and the form is flexible, and the integration degree of the system is improved.

The invention relates to a coarse-grained dynamic reconfigurable processor and a data processing method thereof. The coarse-grained dynamic reconfigurable processor comprises a control unit for analyzing configuration information, a reconfigurable control unit used for receiving the configuration information analyzed by the control unit; an on-chip storage pool composed of a plurality of on-chip storage blocks; a conflict-free address generator used for generating memory access addresses of the on-chip storage blocks; a direct storage access module; and a data distribution module located between the direct storage access module and a storage pool. Through two-stage configuration, configuration information prefetching, second-stage partial configuration and the like, quick dynamic switching between the next operator and the current operator can be realized; meanwhile, by means of a reconfigurable computing array, a conflict-free address generator and the like which are optimally designed, high-performance and high-energy-efficiency operator implementation can be achieved.

The invention discloses an alloy grade recognition method based on a membership degree function. The method comprises the following steps: reading element content information; determining a matching element set; calculating a membership degree; sorting according to a comprehensive membership degree and displaying the result; comparing the actually-measured element content information of a detection object with element content range information of a plurality of grades in a grade library; and inferring relative information including the grade of the detection object and the like. The invention provides a concept of the matching element set; the membership degree function is introduced and is used for comprehensively analyzing a plurality of factors; and matching details of the plurality of grades are shown in a direct manner.

The invention discloses a vibrating screen surface dynamic load optimization method, which comprises the following steps of: 1, selecting a design variable, and establishing an experimental matrix; 2, carrying out a response curved surface experiment; step 3, establishing two double-objective optimization models and solving the two double-objective optimization models; obtaining two groups of Pareto solution sets, wherein the solution sets respectively represent the screening efficiency optimization path of the vibrating screen under the conditions of high screen surface dynamic load and low screen surface dynamic load; and 4, calculating the screen surface dynamic load optimization space under the high screening efficiency. The screen surface dynamic load can be directly reduced, the overall structural load of the screening machine is indirectly reduced, and the service life of the screen surface and the whole vibrating screen is prolonged.

The invention discloses a nitride-based light emitting diode. The nitride-based light emitting diode sequentially comprises a substrate, a buffer layer, an N type nitride layer, an (InxGa1-xN/GaN)nMQW light emitting layer and a P type nitride layer. At least one gradual change InN layer is inserted into an InxGa1-xN well layer of an MQW structure. The polarization field of the quantum well can be effectively weakened through insertion of the gradual change InN layer into the well layer, an energy band of the quantum well becomes smooth from inclination, accordingly, injection and diffusion of carriers in the well layer are enhanced, the composite probability of electrons and cavities is increased, the internal quantum efficiency is improved, and finally, the light emitting efficiency of the light emitting diode is improved, the efficiencydroop effect is reduced, and the spectrum half width, wavelength control and wavelength stability of an LED cannot be affected.

The invention discloses a design method and device of runners of a pump turbine. The method comprises the following steps of determining basic parameters and control parameters of runners; according to the basic parameters and the control parameters of the runners, establishing three-dimensional models of the multiple initial runners; obtaining the runner performance of the multiple initial runners; optimizing the runner performance of the multiple runners to obtain the multiple optimized runners; and screening and determining the runners of the pump turbine. The invention further discloses adevice of the runners of the pump turbine. According to the design method and the device, the pump turbine runners which have good comprehensive performance in the cavitation performance, the water pump working condition and the water turbine working condition can be quickly designed.

The invention relates to a PTS peak-to-average ratio suppression method based on space optimization, belongs to the technical field of wireless communication power amplifier efficiency optimization, and solves the problem that peak-to-average ratio suppression and complexity reduction cannot be considered at the same time in the prior art. The method comprises the following steps: performing frequency domain conversion on an input M-QAM signal to generate an OFDM frequency domain signal, and performing signal segmentation on the OFDM frequency domain signal; sequentially inputting each divided OFDM frequency domain sub-signal into a preset frequency domain scrambling model to obtain a plurality of PTS multiplicative scrambled frequency domain discrete signals corresponding to the OFDM frequency domain signal; respectively inputting the frequency domain discrete signals after each PTS multiplicative scrambling into a preset Spacing evaluation model to obtain corresponding signal dispersion estimated values, arranging the estimated values from small to large, and identifying the frequency domain discrete signals corresponding to the first m estimated values; and respectively carrying out time domain PAPR evaluation on each frequency domain discrete signal obtained by identification, and obtaining a time domain transmission signal after final peak-to-average power ratio suppression based on the frequency domain discrete signal corresponding to the minimum evaluation result.

The invention provides a service function chain arrangement method for operation-level function parallelization and adaptive resource allocation, which relates to the technical field of communication and comprises the following steps: acquiring a service function chain SFC topology of a target source server node in a virtualized network to be optimized; performing function-level parallel processing and operation-level parallel processing on network functions in the SFC topology based on a preset virtual network function parallelism relation table to obtain a recombined SFC topology; and determining a corresponding resource allocation strategy for the target source server node based on the recombined SFC topology and a preset adaptive resource allocation algorithm. According to the method, from the perspective of the SFC, the network functions in the SFC topology are subjected to function-level parallelism and operation-level parallelism according to the preset virtual network function parallelism relation table, and compared with the traditional serial SFC topology, the recombined SFC topology can effectively reduce the total delay loss and improve the throughput.

The invention discloses a multi-network trunk transportation optimization method, computer equipment and a storage medium. The method comprises the following steps: acquiring transportation information; establishing a linear programming model according to the transportation information, wherein the target of the linear programming model is the minimum transportation cost and time efficiency, and the constraint condition of the model includes that for a single network, distribution rooms of different goods collection routing areas cannot collect goods; for multiple networks, enabling non-same joint transportation routing intervals not to perform joint transportation; enabling the same goods collection routing area not to allocate goods collection to the low-grade goods collection when the grade is high; performing joint transportation only when a regular bus is driven; only taking one route from all originating places to destinations; sending out all the original goods quantity and the goods collection quantity, and balancing the distribution goods quantity flow; enabling the cargo capacity of each regular bus not to exceed the maximum loading capacity of the regular bus; enabling the loading and carrying quantity on the regular bus line segment to be consistent with the sum of all the target circulation quantities of the line segment; and solving the linear programming model to obtain a transportation optimization scheme.

The invention discloses a two-dimensional permanent magnet array type magnetic levitation gravity compensator, belongs to the technical field of magnetic levitation, and aims to solve the problems oflarge parasitic force and complex system structure caused by gravity unloading of large-scale load non-contact support in a suspension mode or an air floatation mode. The compensator comprises a stator and a rotor. The stator comprises an upper-layer stator and a lower-layer stator. The rotor is arranged between the upper-layer stator and the lower-layer stator which are parallel to each other andare fixedly connected, and a vertical air gap exists between the two layers of stators and the rotor. The two layers of stators and rotors are of a two-dimensional array flat plate structure composedof N * N rectangular permanent magnets, and a gap exists between any two adjacent permanent magnets in each layer of flat plate structure. The magnetizing directions of the permanent magnets are vertical, and the magnetizing directions of any two adjacent permanent magnets in each layer of flat plate structure are opposite. The magnetizing directions of the permanent magnets at the opposite positions of the upper-layer stator and the lower-layer stator are opposite. The magnetizing directions of the permanent magnets at the opposite positions of the rotor and the upper-layer stator are the same.

The invention discloses a signal lamp coordination method, computing equipment and a storage medium, which relate to the technical field of traffic control, and mainly aim to optimize a configurationscheme of the signal lamps at an intersection by coordinating phase sorting in the intersection so as to improve the traffic efficiency of vehicles in a target path. According to the main technical scheme of the invention, the method comprises the steps ofdetermining the phases of a plurality of intersections in a target path for at least one target path,configuring a first duration capable of continuously passing through the plurality of intersections in the target path based on the phase sequence corresponding to the plurality of intersections,and determining a configuration scheme of each signal lamp in the target path according to the phase sequence corresponding to the first duration.