36results about How to "Shorten acquisition cycle" patented technology

The invention discloses a method for realizing multi-satellite combined imaging. The method for realizing multi-satellite combined imaging includes the steps that an orbit rendezvous of transiting satellites in a given time quantum is obtained, the orbit rendezvous of the transiting satellites is solved in an optimization method to obtain a relatively optimum imaging scheme, and the imaging scheme is optimized to determine which satellite is adopted and what work mode is adopted by the satellite for imaging in a certain given time quantum. The method for realizing multi-satellite combined imaging combines the satellite orbit computing technology and the artificial intelligence technology, and includes the steps of rapid obtaining of the orbits of the transiting satellites, automatic selection of multi-target optimization algorithms, automatic optimization of an imaging coverage scheme, and the like. The method has the advantages of being high in degree of automation, efficient in algorithm and the like, and can be used for building a unified district observation platform for multi-satellite combined imaging. By means of the method for realizing multi-satellite combined imaging, a user can determine the optimum satellite resource from numerous satellite resources, and the cycle of obtaining satellite remote sensing data for the user is made to be as short as possible.

The invention belongs to the field of laser radar measuring, and particularly discloses a road feature extracting method based on fracture surface subdivision. The method comprises the step of obtaining laser scanning point cloud data through a laser radar measuring device, the step of determining a road feature guide line and extracting road feature nearby point cloud data, the step of generating subdivision sections according to the road feature guide line and a certain step length and calculating the coordinates of proximal point clouds in a subdivision section coordinate system to finish fracture surface subdivision of laser point clouds, the step of selecting one subdivision section with integrated feature information and generating a road feature point cloud template in which a user is interest, the step of determining final conversion model parameters of the road feature point cloud template and the subdivision section point clouds, and the step of calculating the space coordinates of road features, extracting needed features according to the characters of the road features and finally finishing measuring and extracting of the road features. The idea of the fracture surface subdivision is introduced, the complex road features are automatically measured and extracted, the working efficiency is remarkably improved on the premise of guaranteeing measuring precision, and the method has remarkable economic and social benefits.

The invention provides an obtaining method of an element capture normal spectroscopy in elemental logging. The method comprises steps of model establishment, model checking and the like, and the core of the method is to establish a simulation model according to conditions of carbon-oxygen saturability calibration wells, and then to perform computation through the established simulation model to obtain the element capture normal spectroscopy. The initial simulation model is established according to the calibration wells and the design size of a logging instrument, meanwhile certain structures of the logging instrument are reasonably optimized, and the modeling difficulty is reduced. The part between an inner casing and an outer casing of a vacuum flask is vacuum, the inner casing and the outer casing of the vacuum flask are combined, and vacuum parts of the instrument are combined. An MCNP input card required by modeling comprises a lattice cell card, a curved surface card, a material card and a counting card. The method has the advantages that a large quantity of calibration wells are not required, conventional calibration experiments are only required to be performed in a small quantity of calibration wells, and the cost is low.

The invention discloses universal primers for amplifying a long fragment of a whole Plecoptera insect mitochondrial genome. The universal primers comprise two pairs of primers with the sequence shown as SEQ ID NO.1-SEQ ID NO.4. With the adoption of the universal primers, long fragments of mitochondrial genomes of various Plecoptera species can be effectively amplified, the acquisition cycle of molecular data can be shortened, and an important tool is provided for phylogenic research of Plecoptera insects in China.

The invention provides an engine gearshift prompt parameter obtaining system and method. The engine gearshift prompt parameter obtaining system comprises a data collection module, a data calculation module and a data outputting module, wherein the data collection module, the data calculation module and the data outputting module are sequentially connected. The data collecting module is used for collecting universal characteristic data of an engine. The data calculation module is used for calculating engine gearshift prompt parameters. The data output module is used for inputting the engine gearshift parameter into an engine management system. After the engine gearshift prompt parameters obtained by the adoption of the engine gearshift prompt parameter obtaining system are applied to gearshift prompt control, the purpose of obviously lowering the oil consumption of the whole vehicle is achieved; besides, the gearshift prompt function control parameters can be rapidly and accurately controlled, the obtained parameters are more objective than those obtained by the adoption of a traditional method, the manpower and material resource cost of a traditional method for obtaining the gearshift prompt function control parameters of an engine control system is significantly lowered, the obtaining efficiency of the gearshift prompt function control parameters is greatly improved, and the parameter obtaining period is shortened.

The invention provides an automatic exposure control method and system. The automatic exposure control method comprises the following steps of: turning on a flat panel detector and setting parameters; detecting exposure starting time in real time, detecting exposure dose or exposure time after exposure is started, if the exposure dose reaches a first exposure dose threshold value or the exposure time reaches an exposure time threshold value, collecting an image, and determining an exposure irradiation field; opening an exposure window, and enabling the flat panel detector to enter an automatic exposure control mode and trigger a switching-off control signal; and detecting the exposure ending moment in real time, and triggering image acquisition by the flat panel detector after exposure is ended. According to the automatic exposure control method and the system, accurate control of exposure irradiation radiation field and exposure dose is realized, the structure is simple, the cost is low, the image acquisition period is short, and the operation complexity is low.

The invention provides an automatic exposure control method and system, and the method comprises the steps: enabling a to-be-photographed object to enter a photographing region, carrying out the graphic collection of the to-be-photographed object, and obtaining the position information of a to-be-photographed part; determining an exposure radiation field of the flat panel detector based on the relative position of the to-be-photographed object and the flat panel detector; and selecting an exposure irradiation radiation field of the flat panel detector, exposing the to-be-photographed part, and triggering image acquisition by the flat panel detector after exposure is completed. According to the invention, the visual device is used for collecting information, the irradiation radiation field selection range is obtained through calculation and analysis, the subjective influence of operators is reduced, and the exposure irradiation radiation field selection is more accurate; automatic exposure control is realized based on exposure dose detection of an exposure irradiation radiation field area, the structure is simple, and the cost is low; the exposure dose is predicted through an algorithm, so that exposure dose errors can be effectively avoided, accurate exposure control is realized, and the imaging quality is improved; and an image is automatically acquired immediately after exposure is detected, so that the image acquisition period is shortened.

The invention discloses a method and electronic equipment for acquiring employment post numbers per unit building area of different land types, and the method comprises the steps: 1) determining a research unit, namely a base station aggregation cell, according to the service range of a base station and land construction conditions; (2) the number of employment posts in a base station gathering cell range is obtained according to mobile phone signaling data statistics; 3) according to the land survey data, carrying out statistics on the building area of each type of land in each base station gathering cell; and 4) performing multivariate statistical regression analysis on the base station aggregation cells, and determining the number of employment posts per unit building area of different land types. According to the method, the employment post number of different land types per unit building area is obtained, and the method can be used and dynamically updated according to specific conditions of each city so as to guide city planning population scale and distribution prediction, traffic demand prediction and the like.

The invention provides a kit for amplifying mitochondrial genome of pyralidae insects. The kit comprises two pairs of primers, with the sequences being as shown in SEQ ID NO: 1-4, and application of auniversal primer to sequencing of the mitochondrial genome of pyralidae. The universal primer can accurately and rapidly amplify long fragments of mitochondrial genome of various pyralidae insects, and is beneficial to the research on phylogeny and population genetic structures of pyralidae.