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4944 results about "Fast speed" patented technology

Cursor control systems and methods

The present invention relates to cursor control systems and methods therefore for providing coarse and fine control in positioning cursors used on display screens of display units for information processing devices. In particular, the cursor control systems and related methods allow the user to move the cursor to a vicinity of a target position at a fast speed through an initial coarse maneuver, and then to precisely position the cursor in the target position at a slow or manual speed through a subsequent fine maneuver. An exemplary cursor control system typically includes a body, at least one fine controller, and at least one coarse controller. In general, the fine controller couples with the body, receives a first input signal from the user, and moves the cursor at the slow or manual speed as determined by the first input signal, while the coarse controller couples with the body, receives a second input signal from the user independently of the first input signal, and moves the cursor at the fast speed. Another exemplary cursor control system typically includes a cursor controller and an adjustor. In general, the cursor controller receive a first input signal from the user and generate an original output signal in response to the first input signal, while the adjustor has at least two settings, receives the original output signal from the cursor controller, receives a second input signal from the user independently of the first input signal to select one of the settings, processes the original output signal based on one of the settings selected by the user, and generates a final output signal based on the original output signal and the setting selected by the user. The information processing device receives the final output signal from the adjustor and moves the cursor on the display screen at the fast speed or at the slow or manual speed based on the final output signal.
Owner:SHIM YOUNGTACK

Super capacitor energy storage type power quality compensator

The invention relates to a super capacitor energy storage type power quality compensator. A system structure comprises a compensation transformer, a series compensator, a parallel compensator, a super capacitor group, a current foldback circuit, a bidirectional DC/DC chopper circuit, a signal sampling circuit, a control circuit, a drive circuit, a human-computer interface and corresponding auxiliary circuits, which form a three-phase three-wire system topological structure. By utilizing the excellent characteristics of great power density, high charging and discharging speed and long cycle life of a super capacitor, the super capacitor energy storage type power quality compensator is matched with the DC/DC chopper circuit to form an energy storage control system which plays the roles of adjusting power and stabilizing the voltage of a direct current bus in work. The invention also has the functions of dynamic voltage recovery, active filter and reactive compensation and can ensure that a load can obtain rated sine voltage and the current of a grid is sine current with the same direction (unit power factor) with that of a voltage fundamental wave positive sequence active component, thereby comprehensively improving the quality of power. The invention has positive generalization and application value for both the public grid and users.
Owner:TIANJIN UNIV

Thermo-mechanical-environmental coupling effect testing device and application from room temperature to ultrahigh temperature

The invention relates to the field of test of mechanical properties of materials and in particular relates to a thermo-mechanical-environmental coupling effect testing device and application from room temperature to ultrahigh temperature. The device comprises an electronic universal testing machine, a loading control system, a power supply control system, an induction heater, a strain measurement system, a sample clamp, a temperature measuring system, a pressure control system, a display and analysis system and a vacuum system, wherein a vacuum cavity in the electronic universal testing machine is in a fully water-cooled design, and various functional windows, such as a sensor connector of the clamp and the electronic universal testing machine, an infrared or thermocouple temperature measuring opening of the temperature measuring system, a pressure control opening of the pressure control system, an induction power supply introduction opening of the power supply control system, an extensometer introduction opening of the strain measurement system and a connector of the vacuum system and the vacuum cavity, are reserved in different parts of the vacuum cavity. The device disclosed by the invention can quantitatively research the thermo-mechanical-environmental coupling effect and has the advantages of diversified tested mechanical property parameters, high sample heating and cooling speed and the like.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Method for fitting and interpolating G01 code based on quadratic B spline curve

The invention discloses a method for fitting and interpolating a G01 code based on a quadratic B spline curve, comprising the following steps of: by an adaptive approach selecting each characteristic point of each group of small line segment which is described by the G01 code; fitting a route which is to be processed with the quadratic B spline curve of all the characteristic points; according to the characteristic of the quadratic B spline curve and the limit of the acceleration of each driving shaft of the numerical control machine, simultaneously obtaining the maximum permissible machining velocity curve (VLC curve) of the quadratic B spline curve and the each speed key point on the VLC curve; according to the each speed key point, the control axis of the each key point, the maximum permissible machining velocity and the VLC curve, computing real machining velocity; according the real machining velocity curve and a interpolating error computing interpolating point and completing real-time interpolation. The invention has fast computing velocity, high machining precision, stable working performance and wide application range, can complete the interpolating computation of the spline curve in real time and meet digital control processing requirement of fast velocity and high precision under a premise that the preset precision of the system is met.
Owner:ACAD OF MATHEMATICS & SYSTEMS SCIENCE - CHINESE ACAD OF SCI

Video abstraction method and system based on moving target detection

The invention relates to a video abstraction method based on moving target detection, and the method comprises the following steps of: carrying out moving target detection and analysis processing on an initial image sequence frame so as to obtain visual feature information of a moving object in each frame of an original video, carrying out target tracking and merging processing between frames and extracting index information of each moving target of the original video; reordering each moving target in time and space, and generating an abstract video by fusing background images, and recording the index information of each moving target in the abstract video; and establishing index correlation for moving targets of each frame of the abstract video and the moving targets of the original video. The invention further discloses a video abstraction device based on moving target detection. The target tracking synthesis method provided by the invention is simple and effective, and can be used for achieving fast and accurate abstraction and concentration of a surveillance video; and the use of index allows freely convenient browsing of the original video clip to which the moving objects occur during playing. The video abstraction method and system based on moving target detection can be used for generating an abstract video at a fast speed, are high in accuracy, and are easily used.
Owner:ANHUI CIVIO INFORMATION & TECH

Retina eyeground image segmentation method based on depth full convolutional neural network

The invention discloses a retina eyeground image segmentation method based on a depth full convolutional neural network. The retina eyeground image segmentation method includes the following steps of:selecting a training set and a test set, extracting retina eyeground images to obtain optic disk positioning area images, and performing blood vessel removal operation on the optic disk positioning area images; constructing the depth full convolutional neural network, taking the optic disk positioning area images as the input of the depth full convolutional neural network, and performing the training of an optic disk segmentation model on the training set based on trained weight parameters as initial values to fine tune model parameters, and performing fine tuning on parameters of an optic cup segmentation model based on trained optic disk segmentation model parameters; and performing optic cup and optic disk segmentation on the test set by utilizing a trained optic cup segmentation model, performing ellipse fitting on final segmentation results, calculating a vertical cup-disk ratio according to optic cup and optic disk segmentation boundaries, and taking a cup-disk ratio result as important basis for a glaucoma auxiliary diagnosis. The retina eyeground image segmentation method achieves optic disk and optic cup automatic segmentation of the retina eyeground images, has high precision and fast speed.
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS

Novel energy-consumption shock-absorbing filling wall board used for frame structure

InactiveCN101476360ADynamic characteristics are not affectedAvoid detrimental effects on seismic performanceWallsShock proofingSlagReduction function
The invention belongs to the technical filed of building material, and in particular relates to a novel energy consumption and vibration reduction infilled wall board for a frame structure, wherein both sides of a ribbed composite wall board are connected with frame columns; flexible filling materials are arranged between the ribbed composite wall board and the frame columns; the top of the ribbed composite wall board is connected with frame beams through one or more than one slipping device; and the ribbed composite wall board is manufactured by taking a concrete sash as a framework and embedding gas-filling silicate building blocks which take furnace residue and fly ash as main raw materials. The novel energy consumption and vibration reduction infilled wall board for the frame structure has the advantages that the wall board does not participate in earthquake resistance under the condition of small earthquake, so that adverse effects of an infilled wall on the dynamic property and the anti-earthquake performance of the frame structure are avoided; the energy consumption and vibration reduction function of a ribbed composite wall is given full play under the condition of medium earthquake and large earthquake, and the anti-earthquake defense line and the safety margin of the frame structure under the condition of large earthquake are increased; and replacement of the whole wall body or local damaged building blocks can be performed according to the damage conditions after earthquake, so that the repair cost is low and the construction speed is quick.
Owner:BEIJING JIAOTONG UNIV

Mixed measurement analysis method for satellite antenna

The invention relates to a mixed measurement analysis method for a satellite antenna. The method effectively solves the problems that various measurement devices are used for co-measurement to reduce detection difficulty and improve detection efficiency during a measurement process of the satellite antenna. The method comprises the steps: cubic mirror collimating measurement is carried out by electronic theodolites during antenna installation and detection processes, scanning measurement of an antenna shaped surface is carried out by a laser radar, a space point position is measured by a laser tracker, and thus the measurement of the satellite antenna is jointly completed by the various measurement devices; union calibration algorithm of 'six freedom degree measurement station three-dimensional network' is employed, a conversion relationship between measurement station coordinates and measurement coordinates is utilized, various observed value error equations are directly listed, so as to overcome shortcomings of a traditional algorithm and improve adaptability of the algorithm. The method provided by the invention is simple, is easy to operate, enables an initial value to be fast acquired, has low requirements for precise degree of the initial value, has a few iteration times, is quick in convergence speed, theoretically is an optimal solution, and has strong algorithm adaptability, high measuring efficiency, fast speed and high precision.
Owner:BEIJING SATELLITE MFG FACTORY +1

System for fully automatically reconstructing foot-type three-dimensional surface from a plurality of images captured by a plurality of cameras simultaneously

The name of the invention is 'system for fully automatically reconstructing foot-type three-dimensional surface from a plurality of images captured by a plurality of cameras simultaneously'. The invention relates to a system for fully automatically reconstructing foot-type three-dimensional surface from a plurality of images, comprising the following main steps of: firstly carrying out statistical analysis on a shoe-tree sample set so as to obtain the statistical deformation model; arranging the imaging environment; obtaining the calibrated template and the image of the human foot by a plurality of cameras; deforming statistical model, and fitting the foot type image so as to obtain the initially estimated model and generate the sparse grid model; and iterating to finely divide the grid model, wherein the image characteristic points from each image are divided in each turn of iteration, the plane characteristic point is matched with the space point, and the grid model is subdivided by using the spatial characteristic point; and finally obtaining the foot type model consistent with the target object. In the invention, a mark point is unnecessary to be set on the foot, and a high-precision laser measurement device is unnecessary; the camera and the computer are only used, and the shutter imaging time and the calculation processing time are only required. The system has fast speed, and can be widely applied to the condition for the three-dimensional reconstruction of the biological skin with relatively low precision request.
Owner:WENZHOU UNIVERSITY +1
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