33results about How to "Narrow selection" patented technology

The invention discloses a method for configuring multilevel transmitting power in the wireless sensor network. When a communication service is initially initiated by a sending node to a receiving node in the wireless sensor network, the theoretical communication distance between the two communication nodes is measured and calculated by the sending node. Theoretical transmitting power needed by the nodes is calculated, the stages of the transmitting power are initially selected, and each transmitting power stage is provided with a plurality of transmitting power values. The node no-load received signal strength instruction namely RSSI detection is sent out, and the needed transmitting power stages are dynamically adjusted. The minimum effective transmitting power value is determined from the selected transmitting power stages based on the exploratory transmitting power control method. The transmitting power values determined based on the power setting method are stored, and the transmitting power is set to initiate the communication service. The two nodes initiate the communication service again to directly acquire the stored transmitting power, and if the communication is failed, the stored transmitting power values are eliminated, and the method for configuring the multilevel transmitting power is launched again to set the transmitting power value suitable for a communication link.

The invention relates to an image stitching method. A traditional image stitching method is not good in effect. The image stitching method includes the steps: firstly, selecting a coarse registration area and carrying out pairwise weighted average on pixel values at the positions of overlapping coordinates of initial areas of two images, obtaining a reserved image, then, scanning an energy matrix of the reserved image line by line, obtaining a minimum energy line after calculation, obtaining a strip-shaped area by serving the minimum energy line to as a center to expand to two sides, respectively finding corresponding registration areas from the initial areas of the two images, carrying out image fusion on all the pixel values in the registration area of the two images to obtain a stitching area, and then finishing image stitching. According to the image stitching method, not only can an optimal matching seam be found rapidly, but also selection of an image fusion area can be reduced, and an optimized stitching image can be obtained.

The invention relates to a selection method of a plug-in hybrid power system configuration, and in the selection method of the plug-in hybrid power system configuration, through screening based on ownresearch and development resources, a selection range of the plug-in hybrid power system configuration can be reduced effectively. By combining a global optimization control strategy based on dynamicplanning with component parameter optimization based on an orthogonal test design method, a nested loop formed by combination of the control strategy optimization and the component parameter optimization is built, and by taking a vehicle power performance design target, vehicle cabin inner space size and emission performance as constrain conditions and taking the lowest cost as a target, selecting the configuration with the lowest cost under a condition of united optimization of the control strategy and component parameters is realized, calculation load is low, and the method is simple and convenient to operate.

The invention discloses a method and device for extracting a webpage text, and relates to the technical field of computers. A specific embodiment of the method comprises the following steps: constructing an access model according to a to-be-extracted webpage; calculating a similarity value between each unit area of the main body part and the feature part; screening a unit text area from the accessmodel according to the similarity value and the first index value of each unit area; and determining the beginning and ending of the text of the to-be-extracted webpage according to the unit text area to obtain the complete text of the to-be-extracted webpage. According to the embodiment, the webpage text can be accurately and completely extracted, the labor cost is reduced, and the efficiency ofextracting the webpage text is improved.

The invention discloses a beam scanning method and related equipment used for solving the problem that a lot of system overhead needs to be occupied in the existing process of performing traversal search on a potential transceiving beam combination and determining an optimal transceiving beam, so that the system efficiency is reduced and the adaptability to channel time-varying is reduced. The method comprises the following steps: determining at least one transmitting beam by a first communication node according to an optimal receiving beam group between a receiver of the first communication node and a transmitter of a second communication node; and transmitting signals to the second communication node by the first communication node orderly according to the determined at least one transmitting beam through the transmitter, until an optimal transmitting beam is determined.

The invention belongs to the technical field of label printing, and particularly relates to a printing method of a label printing system, and the label printing system. The invention aims at solving the problems that most of preparation work needs to be completed through manual operation during existing label printing, the printing accuracy of labels is difficult to guarantee, and the overall manufacturing efficiency is low. For the purpose, the printing method of the label printing system can directly correspond to specific product equipment through the input order number, all printable labels under the product equipment of the current batch are called, and therefore the label template of the label to be printed is automatically obtained and displayed for printing, manual operation stepscan be reduced, the error rate of template searching before label printing is reduced, the preparation time before label printing is shortened, the label printing efficiency is improved, and the labelprinting correctness degree can be guaranteed.

Storage section stores therein a plurality of tone data sets each representative of a tone waveform but also a plurality of character data sets in association with the tone data sets, each of the character data sets representing content of the tone waveform, represented by the corresponding tone data set, in character quanta. Display control section causes a display section to display an image with some of the stored tone data sets as selection candidates. Selection section is provided for a user to select at least one of the tone data sets displayed as the selection candidates. Identification section searches for and identifies a plurality of character data sets similar to the character data set corresponding to the user-selected tone data set. The display control section causes the display section to further display an image of a plurality of the tone data sets associated with the identified character data sets.

The invention relates to a solar spectrum absorption film layer design method. The method comprises the following steps: determining a dielectric function of a pre-selected material; compounding the dielectric functions of the materials with different proportions, calculating to obtain a dielectric function curve, and screening a composite material proportion meeting requirements; constructing a film layer structure model, and determining physical data of the film layer structure model; changing and optimizing a single physical variable, and selecting a structure model meeting requirements oran optimal structure model; and selecting, formulating and optimizing a film preparation process according to the screened composite material ratio and the optimal structure model. The preparation process of the non-magnetic high solar spectrum absorptivity film layer is designed and optimized, the selection range of part of parameters in the experiment process can be remarkably narrowed, human and material resource losses caused by wrong experiments are reduced, the optimal process is determined more rapidly and efficiently, and therefore the film layer development and production efficiency is improved.

The invention provides a method and a device for determining a link prediction algorithm type. The method for determining the link prediction algorithm type comprises the following steps: acquiring asampling network obtained by performing network sampling on an initial network; calculating a multivariate closure probability corresponding to a multivariate closure node structure composed of a plurality of nodes in the sampling network; calculating a structured heterogeneous index of the sampling network according to the multivariate closure probability; and determining a link prediction algorithm type corresponding to the structured heterogeneous index in a preset link prediction algorithm type set, and taking the link prediction algorithm type as a target link prediction algorithm type ofa link prediction algorithm adopted for link prediction of nodes in the initial network. According to the link prediction algorithm type determination method provided by the invention, the target link prediction algorithm type of the link prediction algorithm for performing link prediction on the nodes in the initial network is determined by calculating the structured heterogeneous index of the sampling network, so that the selection range of the link prediction algorithm is reduced, and the efficiency of selecting the link prediction algorithm is improved.

The invention belongs to the technical field of steelmaking continuous casting, and discloses an inter-flow temperature difference prediction method and a structure optimization method of a multi-flow tundish. The prediction method comprises the following steps: designing a tundish experiment scheme; a water model with the similarity ratio of lambda is designed, and stagnation time and peak time are obtained; establishing a numerical simulation model, and obtaining an inter-flow temperature difference; performing polynomial fitting on the inter-flow temperature difference and the stagnation time to obtain a first fitting function; performing polynomial fitting on the inter-convection temperature difference and the peak time to obtain a second fitting function; performing mutual optimization verification on the first fitting function and the second fitting function to obtain a consistent inter-flow temperature difference through the first fitting function and the second fitting function; and calculating to obtain the inter-flow temperature difference of any tundish. According to the prediction method, temperature difference prediction is carried out no longer by means of a simulation calculation program, so that the prediction process is greatly simplified, and the prediction time is saved. The structure optimization method is carried out on the basis of the temperature difference prediction method, so that an optimal optimization scheme can be better obtained.