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35results about How to "Meet build requirements" patented technology

Method, device and computer equipment for identifying short text category information

The invention discloses a method, a device and computer equipment, which are used for identifying short text category information and are implemented by a computer. According to the technical scheme provided by the invention, the method comprises the following steps of: acquiring the short text category information to be classified; acquiring a plurality of category judged results of the short text information, which are acquired on the basis of a plurality of pre-trained classification model groups respectively; and on the basis of a first predetermined rule and according to the category judged results, comprehensively determining the category information of the short text information to be classified. Compared with the prior art, the invention has the following advantages that: 1) the category of the short text information is comprehensively judged through characteristic information of a plurality of short texts, so that the judgment accuracy is improved; 2) the automatic expansion of classified short text information is realized through iterative training and classification; and 3) the category information of the short text information can be acquired in real time by generating a short text matching dictionary.
Owner:BAIDU ONLINE NETWORK TECH (BEIJIBG) CO LTD

Smart satellite earth observation time window generating method based space analytic geometry

The invention relates to a smart satellite earth observation time window generating method based space analytic geometry, comprising the following six steps of: (1) establishing a space analytic geometry relational model, and using the model for carrying out coordinate transformation on the given substellar point and satellite coordinate; (2) initialization: pretreating the substellar point and target data, and forming substellar point target pair sequence; (3) angle inversion: carrying out angle inversion on each substellar point target in the substellar point target pair sequence, and obtaining a roll sequence and a pitch sequence corresponding to the substellar point target pair sequence; (4) rotation matrix inverse transformation: converting the roll sequence and the pitch sequence which are obtained in the step (3) into dynamic angle under a dynamic rotation coordinate system by inverse transformation; (5) obtaining smart satellite observation angle curve for observing the target by calculation of interpolation; and (6) intercepting a time window. The smart satellite earth observation time window generating method has the advantages of simple and convenient operation, high accuracy, easy implementation and the like, and can be applied under the background of rotation with three degrees of freedom of a smart satellite.
Owner:NAT UNIV OF DEFENSE TECH

Preparation method for bismuth titanate film layer on basis of micro-arc oxidation technology

The invention discloses a preparation method for a bismuth titanate film layer on the basis of micro-arc oxidation technology. The preparation method comprises the following steps: a bismuth sheet and a platinum sheet which are the same in size are respectively used as an anode and a cathode; the bismuth sheet is burnished with several pieces of sand paper with different meshes and polished with a polishing paste, and the cleaning and oil removal of the bismuth sheet are performed sequentially via alcohol and acetone for standby; electrolyte with titanium concentration of 0.01-0.10 mol / L is prepared; the bismuth sheet keeps a distance of 1-3 cm from the platinum sheet, the bismuth sheet and the platinum sheet are vertically immersed into the electrolyte in a depth of 2-4 cm, magnetic agitation is started, and 1-5A constant current is electrified for 5-10 min; electric sparks are continuously generated on the surface of the bismuth sheet, a deposition layer is synchronously generated, and the bismuth sheet with the deposition layer is flushed with ion water and then dried at a temperature of 60 DEG C for 2 h, as a result, a bismuth titanate film layer is obtained. The bismuth titanate film layer preparation method is mild in synthesis conditions, can be completed under the conditions of normal temperature and normal pressure, and is quick in reaction speed and simple in operation steps; used bismuth is an environmental-friendly raw material, the process is safe, and no hazardous substance is leaked and discharged, so that environmental protection is facilitated.
Owner:QINGDAO AGRI UNIV

Aluminum alloy mirror polishing equipment and polishing method

The invention discloses aluminum alloy mirror polishing equipment. The aluminum alloy mirror polishing equipment is characterized by comprising a pneumatic polisher, a wool polishing disc, liquid polishing wax, a six-axis manipulator and a control mechanism, wherein the pneumatic polisher is connected with the six-axis manipulator, the wool polishing disc is arranged on the pneumatic polisher and is connected with the six-axis manipulator, the control mechanism is used for controlling the six-axis manipulator and the liquid polishing wax, the liquid polishing wax is stored in a pressure tank which is controlled by the control mechanism, the control mechanism can be used for compiling programs to control the movement of the manipulator according to the shape of a polished product, and the wool polishing disc and the liquid polishing wax are driven to polish a mirror of a workpiece by the manipulator. According to the aluminum alloy mirror polishing equipment and a polishing method, the special pneumatic polisher is matched with the wool polishing disc and the liquid polishing wax as well as the program control of the six-axis manipulator so as to complete the mirror polishing operation together, and the aluminum alloy mirror polishing equipment is suitable for the mirror polishing operation of shells of mobile phones, tablet computers and notebook computers of different sizes.
Owner:SUZHOU CHENGJIA PRECISION MFG CO LTD

A method for preparing bismuth titanate film layer based on micro-arc oxidation technology

The invention discloses a preparation method for a bismuth titanate film layer on the basis of micro-arc oxidation technology. The preparation method comprises the following steps: a bismuth sheet and a platinum sheet which are the same in size are respectively used as an anode and a cathode; the bismuth sheet is burnished with several pieces of sand paper with different meshes and polished with a polishing paste, and the cleaning and oil removal of the bismuth sheet are performed sequentially via alcohol and acetone for standby; electrolyte with titanium concentration of 0.01-0.10 mol / L is prepared; the bismuth sheet keeps a distance of 1-3 cm from the platinum sheet, the bismuth sheet and the platinum sheet are vertically immersed into the electrolyte in a depth of 2-4 cm, magnetic agitation is started, and 1-5A constant current is electrified for 5-10 min; electric sparks are continuously generated on the surface of the bismuth sheet, a deposition layer is synchronously generated, and the bismuth sheet with the deposition layer is flushed with ion water and then dried at a temperature of 60 DEG C for 2 h, as a result, a bismuth titanate film layer is obtained. The bismuth titanate film layer preparation method is mild in synthesis conditions, can be completed under the conditions of normal temperature and normal pressure, and is quick in reaction speed and simple in operation steps; used bismuth is an environmental-friendly raw material, the process is safe, and no hazardous substance is leaked and discharged, so that environmental protection is facilitated.
Owner:QINGDAO AGRI UNIV

High-frame-rate video generation method and device based on data fusion

The invention discloses a high-frame-rate video generation method and device based on data fusion, and the method comprises the steps: obtaining a low-frame-rate video and event data from an event camera; every two adjacent image frames in a video are combined, a timestamp set of all expected intermediate frames is calculated, a first event stream and a second event stream from two boundary frames to the expected intermediate frames are intercepted, and the first event stream and the second event stream are input into a preset pulse neural network for forward propagation. Obtaining a first event stream data feature vector and a second event stream data feature vector, splicing the first event stream data feature vector and the second event stream data feature vector with adjacent image frames, and inputting the spliced image frames into a preset multi-modal fusion network for forward propagation to obtain all intermediate frames; a high frame rate video is generated based on all the intermediate frames. Therefore, the technical problem that the quality of the generated image is low due to the fact that only the event stream is used as data input, the initial brightness value of each pixel point is lacked and the stability of brightness estimation only depending on the brightness change record is poor in the prior art is solved.
Owner:TSINGHUA UNIV

An automatic brazing method based on machine vision

The invention discloses an automatic brazing rod changing method based on machine vision. The automatic brazing rod changing method comprises the following steps of: mounting an industrial camera and an embedded type processor, wherein an image acquisition area of the industrial camera covers an area of a mechanical hand and a brazing rod; processing the brazing rod according to an image acquired by the industrial camera, and separating the position of the brazing rod from background and detecting the position of the brazing rod by utilizing steps such as Gaussian filter, sharpening, edge detecting and linear detecting; judging whether the brazing rod is in place or not; detecting the position of a mechanical gripping arm by utilizing a target-detecting and target-tracking algorithm, tracking a motion state of the mechanical hand in real time, judging a relative position relationship of the mechanical hand and the brazing rod, and judging whether the mechanical hand is in place or not according to shielding degree of the mechanical hand and the brazing rod; and transmitting detected and analyzed results to a field controller, and controlling each part of an automatic brazing rod changing device. The automatic brazing rod changing method based on machine vision disclosed by the invention meets generation requirements of automatic equipment, and improves mechanical and automatic level of casthouse equipment.
Owner:CHINA THREE GORGES UNIV

A Shuttle Vertical Warehouse

The invention discloses a shuttling type vertical storeroom which comprises a plurality of side-by-side shuttling type vertical storeroom units (1) and ground conveying equipment (2). Each shuttling type vertical storeroom unit comprises a row of multi-layer penetrating type storing goods shelves, a shuttling trolley, lifting equipment and transferring equipment. Goods are supported through two shuttling trolley guiding tracks on the two sides of a lifting table. The shuttling trolley guiding tracks are pushed to move horizontally in the reverse direction through a horizontally-moving mechanism. Reverse moving of the shuttling trolley guiding tracks and lifting moving of the lifting table are combined, and goods loading and unloading can be completed. During goods loading and unloading, guiding track horizontal moving distance is short, and consumed time during horizontal moving is short. An automatic electric connecting device is arranged in a charging room above the lifting table, a stirring rod which rotates around a rotating center stirs a locating base fixedly arranged on the shuttling trolley, so that the shuttling trolley is attached to an abutting plate, aligning of a plug and a socket center is achieved, a straight line moving mechanism pulls and pushes the plug, so that automatic plugging of the plug and the socket is achieved, and automatic charging of the shuttling trolley is achieved.
Owner:南京百顺储存设备有限公司

Smart satellite earth observation time window generating method based on space analytic geometry

The invention relates to a smart satellite earth observation time window generating method based space analytic geometry, comprising the following six steps of: (1) establishing a space analytic geometry relational model, and using the model for carrying out coordinate transformation on the given substellar point and satellite coordinate; (2) initialization: pretreating the substellar point and target data, and forming substellar point target pair sequence; (3) angle inversion: carrying out angle inversion on each substellar point target in the substellar point target pair sequence, and obtaining a roll sequence and a pitch sequence corresponding to the substellar point target pair sequence; (4) rotation matrix inverse transformation: converting the roll sequence and the pitch sequence which are obtained in the step (3) into dynamic angle under a dynamic rotation coordinate system by inverse transformation; (5) obtaining smart satellite observation angle curve for observing the targetby calculation of interpolation; and (6) intercepting a time window. The smart satellite earth observation time window generating method has the advantages of simple and convenient operation, high accuracy, easy implementation and the like, and can be applied under the background of rotation with three degrees of freedom of a smart satellite.
Owner:NAT UNIV OF DEFENSE TECH

Automatic brazing rod changing method based on machine vision

The invention discloses an automatic brazing rod changing method based on machine vision. The automatic brazing rod changing method comprises the following steps of: mounting an industrial camera and an embedded type processor, wherein an image acquisition area of the industrial camera covers an area of a mechanical hand and a brazing rod; processing the brazing rod according to an image acquired by the industrial camera, and separating the position of the brazing rod from background and detecting the position of the brazing rod by utilizing steps such as Gaussian filter, sharpening, edge detecting and linear detecting; judging whether the brazing rod is in place or not; detecting the position of a mechanical gripping arm by utilizing a target-detecting and target-tracking algorithm, tracking a motion state of the mechanical hand in real time, judging a relative position relationship of the mechanical hand and the brazing rod, and judging whether the mechanical hand is in place or not according to shielding degree of the mechanical hand and the brazing rod; and transmitting detected and analyzed results to a field controller, and controlling each part of an automatic brazing rod changing device. The automatic brazing rod changing method based on machine vision disclosed by the invention meets generation requirements of automatic equipment, and improves mechanical and automatic level of casthouse equipment.
Owner:CHINA THREE GORGES UNIV
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