108results about How to "Clear resolution" patented technology

The invention discloses a pump potential cavitation fault detecting method based on quick spectrum kurtosis analysis. The pump potential cavitation fault detecting method comprises the steps that 1, vibration acceleration signals are collected to be subject to noise reduction to serve as to-be-processed signals; 2, according to the data size of the signals, the resolving order of signal processingis determined; 3, according to the quick spectrum kurtosis algorithm computation result, the optimal carrier frequency and bandwidth are selected; 4, the selected signals within the carrier frequencyand bandwidth are subject to Fourier transformation, and a frequency spectrum envelope diagram is obtained; and 5, an original signal time domain figure, a signal time domain figure treated through quick spectrum kurtosis filtering processing and the frequency spectrum envelope diagram obtained after selected zone Fourier transformation are compared, and cavitation trouble signal time and frequency characteristics are analyzed. By means of the method, more cavitation instant signals can be detected, information in the aspects of time domain and frequency domain is seen more clearly, and the normal state and the cavitation state of a pump can be distinguished obviously.

This invention provides an apparatus and methods to consistently separate and concentrate selected blood components. The system includes, e.g., a computerized fluid handling system to transfer blood components between a centrifugal blood separation disc, containers and a concentrator.

The invention discloses a three-dimensional reconstruction method for a concrete CT (computed tomography) image, comprising the following steps of: firstly, performing tomography on a concrete test sample by a CT machine; secondly, performing three-dimensional reconstruction on the concrete CT image by using a ray-casting algorithm, so as to obtain real images of aggregates, mortar and holes; and finally, performing three-dimensional stereo reconstruction on the concrete CT image by using a visualization tool VTK (visualization tool kit). The three-dimensional reconstruction method for the concrete CT (computed tomography) image, disclosed by the invention, has the advantages of being strong in real-time performance, high in operation efficiency, and capable of clearly and reliably distinguishing the aggregates, the mortar and the holes. A real meso-structure model of concrete can be obtained through a three-dimensional reconstruction result, the three-dimensional reconstruction result can be subjected to a test comparison with a concrete mesoscopic numerical simulation result, and a numerical analysis model is corrected.

The invention discloses a vehicle ambient environment three-dimensional reconstruction method for night vision. According to the technical scheme, a night vision system based on a three-dimensional laser radar sensor is constructed, the night vision system is composed of the vehicle mounted three-dimensional laser radar sensor, a computer, a display and three-dimensional reconstruction software, the three-dimensional reconstruction software is composed of an environmental mesh model generating module and a model color rendering module, the environmental mesh model generating module generates an environment height graph through three-dimensional point clouds, a triangular mesh environmental model is generated by conducting triangular patching on the environment height graph, the model color rendering module puts color on each triangular patch in the triangular mesh environmental model so that a three-dimensional reconstruction image can be generated, and the three-dimensional reconstruction image is displayed by the display. By the adoption of the vehicle ambient environment three-dimensional reconstruction method for the night vision, the three-dimensional rendering type terrain around a vehicle can be generated, the color of the reconstructed image can be closer to the visual sense of the eyes of people, display enhancement is conducted on the vision blind areas of a driver, the driver can have a good vision field even in the dark environment, and the requirements of night driving are met.

Disclosed is an automatic pulse pressing device for blood drawing. The automatic pulse pressing device for the blood drawing comprises a housing (1), medical latex tubes (4), two rotation wheels (5), a motor (6), sensors (7) and a control system (8), wherein an arm placing through hole (2) and a positioning groove (3) are formed in the housing (1), the medical latex tubes (4) are crosswise fixed in the positioning groove (3), two ends of each medical latex tube (4) are respectively fixed on the two rotation wheels (5), the two rotation wheels (5) are respectively connected with the motor (6), and simultaneously rotate, one of the two rotation wheels (5) can be fixed, the other rotation wheel can be rotated, the sensors (7) are installed on the medical latex tubes (4), and can not touch the rotation wheels (5) within the maximum stroke, and the motor (6) and the sensors (7) are all connected onto the control system (8). Simultaneously, the automatic pulse pressing device for the blood drawing is further provided with a collection point indication lamp (9), and the collection point indication lamp (9) is fixed on the upper portion of the front end of the housing (1) through a hose (10). The automatic pulse pressing device for the blood drawing is simple in structure and strong in practicability, achieves automatic pulse pressing for an arm which is placed in the arm placing through hole (2), can reduce workloads and decrease the number of work procedures for nurses, and quickly and accurately finds out positions of blood vessels, and thereby improves medical care work efficiency and quality.

The invention relates to an image measurement tool system, and the system comprises a sheet metal instrument stand, a display, a computer host, a mouse keyboard, a console, a workbench moving mechanism, a lifting mechanism, a working table, a glass block, a clamping tool for clamping a cutter, a bottom light source plate, a lateral image collection device, and a longitudinal image collection device. The mouse keyboard and the display are respectively connected with the computer host, and the computer host is connected with the console. The workbench moving mechanism and the lifting mechanism are disposed on the console and are connected with the console. The working table is disposed above the workbench moving mechanism, and the glass block is disposed on the upper surface of the working table. The clamping tool is disposed at the central part of the glass block. The longitudinal image collection device is fixed on the lifting mechanism, and the lateral image collection device is rotatingly connected along the axis of the longitudinal image collection device through an angle rotating device. The bottom light source plate is disposed on the working table, and is disposed at a side of a longitudinal camera lens.

The invention discloses a method, a device and a system for controlling display contents. The method comprises the steps that touch control operation is received, the position of the touch control operation on a touch control screen is determined, and the located control region of the touch control operation is determined according to the position, wherein a control page of a remote controller on the touch control screen comprises more than two control regions, and different control regions are used for executing different control functions; according to the control function of the located control region of the touch control operation and the type and/or the position of the touch control operation, the display contents, controlled by the remote controller, on a target screen and/or the display contents on the touch control screen of the remote controller are controlled. When the method, the device and the system are applied, the rich control function can be provided, and the control of display signals is more convenient.

The invention discloses a low-rank-represented polarization SAR image classification method based on superpixel features. The method mainly improves the marginal classification accuracy of an existing classical algorithm and mainly comprises the steps that (1) Freeman decomposition is conducted on polarization SAR data, surface scattering energy, volume scattering energy and secondary scattering energy are obtained, and a scattering power entropy and a co-polarization ratio are calculated through the surface scattering energy, the volume scattering energy and the secondary scattering energy; (2) superpixel processing is conducted on an RGB composite graph, and a superpixel result graph is obtained; (3) the average value of five features is extracted from each superpixel, a feature matrix of all the superpixels is built, and each row represents the features of each superpixel; (4) low-rank representation is conducted on the feature matrix, and low-rank coefficients are obtained and clustered; (5) wishart adjustment is conducted on the clustered result, and coloring is conducted finally. Compared with other classical methods, the low-rank-represented polarization SAR image classification method based on the superpixel features can better improve classification accuracy and can be used for polarization SAR image classification.

The invention discloses an NAVTEX demodulator based on DSTFT (discrete short time Fourier transform) and a demodulation method thereof. The NAVTEX demodulator comprises an NAVTEX signal A/D (analog/digital) sampling module, an NAVTEX signal demodulation module and an NAVTEX information decoding module, wherein the NAVTEX signal A/D sampling module performs double-channel A/D sampling and ping-pong storage on an NAVTEX signal; the NAVTEX signal demodulation module performs digital demodulation on the NAVTEX signal so as to obtain a corresponding code element; and the NAVTEX information decoding module respectively decodes Chinese and English NAVTEX information and performs lost position compensation on the code element so as to obtain the NAVTEX information. By using the NAVTEX demodulator, the problems that the previous NAVTEX analog demodulation is complex in circuit and difficult to upgrade are solved, and the digital demodulation of the NAVTEX signal can be achieved by virtue of a software radio technology. The NAVTEX demodulator is suitable for an NAVTEX receiver designed by adopting a software radio method.

The invention provides a structured light projection device which comprises a light source and a pattern generator. A light beam emitted by the light source forms structured light patterns through the pattern generator, and the structured light patterns are emitted outwardly. The structured light patterns are changed in at least one dimension, so that the structured light patterns can be distinguished when at least a part of a number of structured light patterns are overlapped in at least one dimension. Compared with a depth camera disclosed in the prior art, the depth camera provided by the invention has the advantages that the problem of interference is solved from the source; the structured light patterns emitted by a projection module are changed, so that the structured light patterns can vary along a certain dimension; when the measurement spaces of a number of depth cameras are partially overlapped, the structural light patterns in the overlapping area can still be clearly distinguished; the acquisition of a depth image is not influenced by pattern overlapping; and anti-jamming is realized.

A method of forming isolated features of semiconductor devices is disclosed. A first hard mask is deposited over a material layer to be patterned, and a second hard mask is deposited over the first hard mask. The second hard mask is patterned with a pattern for an array of features using an off-axis lithography method. A portion of the pattern for the array of features is transferred to the first hard mask. The first hard mask is then used as a mask to pattern the material layer.

The invention discloses a laser radar and camera combined calibration method, and the used laser radar scanning mode is non-repetitive scanning, i.e., the scanning tracks of laser radars are different each time, collection is performed for seconds in a static state, and the point cloud coverage rate in the visual field tends to be close to 100%. According to the non-repetitive scanning characteristic of the laser radar, the self-made large checkerboard calibration plates are sequentially placed at different positions in the overlapped view field of the laser radar and the camera, and the laser radar collects three-dimensional point cloud data for a long time while the camera collects a frame of image; the obtained three-dimensional point cloud data is converted into a two-dimensional normalized grey-scale map according to the point cloud intensity, corner detection is performed on the normalized grey-scale map and the camera image to obtain a corresponding two-dimensional grey-scale map and camera image corner pair, accurate three-dimensional point cloud corner coordinates are found out according to corner backtracking in the two-dimensional grey-scale map, and finally, a joint calibration result is obtained according to the corresponding three-dimensional point cloud corner points and camera image corner point coordinates, and compared with a traditional method, the method has higher precision.

The invention relates to a high-temperature Daqu leaching liquor macro-protein extraction and purification method. The method comprises the following steps: crushing high-temperature Daqu, spraying sterile water and evenly mixing, storing in a biological culture tank, performing activated culturing for later use by adopting a stage temperature rise method; adding an acetic acid-sodium acetate buffer solution and a phenylmethylsulfonyl fluoride solution, shaking and blending evenly, and then leaching overnight, filtering and centrifuging to obtain high-temperature Daqu leaching liquor; sequentially adding a TCA acetone solution, an ammonium acetate methanol solution, an acetone solution, a Tris satured phenol/lauryl sodium sulfate buffer solution, an ammonium acetate methanol solution, and a methanol and acetone solution to obtain sediment A, sediment B, phenol layer, sediment C, sediment D and high-temperature Daqu macro-protein samples; adding a sample lysate, performing ice bath ultrasonic for hydrotropy, and centrifuging the sediments to obtain a high-temperature Daqu macro-protein sample solution. The high-temperature Daqu macro-protein sample solution prepared by adopting the method can be applied to two-dimensional electrophoresis of the high-temperature Daqu macro-protein, to obtain high-resolution and high-repeatability two-dimensional electrophoretogram.

The invention discloses a method for high-resolution genotyping of an SSR (simple sequence repeats) molecular marker. According to the method, PCR (polymerase chain reaction) amplification is simultaneously carried out by virtue of three primers in a same reaction system. The invention provides a method for designing three primers, a corresponding PCR formula, a detection method for PCR circle parameters and segment parting based on a sequencer. A primer design method for genotyping of which the resolution ratio is at a nucleotide level is provided. A specific formula of a PCR reagent and PCR circle parameters are unified. The experiment process does not need to be optimized. In addition, the problem of large noise of genotyping of the SSR molecular marker based on the sequencer is solved. The method is suitable for SSR marker development of kinds of species DNAs and high-throughput and high-resolution DNA fragment parting. With a tobacco SSR molecular marker as an example, the application of the method is tested.

The invention discloses a light signal intensity-based gas sensor adapting to various environments. The gas sensor comprises a micro processor, a digital-analog converter, a laser controller, a laser device, a circulator, a photoswitch, a probe, a photoelectric detector, a trans-impedance amplifier, an operational amplifier, a narrow band filter, a digital potentiometer and an analog-digital converter. A weak signal entering the analog-digital converter and the micro processor through the narrow band filter forms a signal feedback system through the digital potentiometer, and the amplification factor is automatically changed, so that signals Af1 and Af2 which are absorbed by gas are obtained; the concentration of the gas can be obtained according to a linear relation between a ratio of the two signals and the concentration. By the use of an algorithm basis of detecting propane through a harmonic detection technology, a relation between primary and secondary harmonic signals at the central wavelength of a broad spectrum absorption peak of the propane and the concentration of the propane, and an on-site adaptive system, the problems caused by unstable factors such as optical path signal attenuation, probe dewing, interface attenuation, high humidity, an optical fiber distance and the like are solved.

The invention discloses an ultra-wide-angle lens and imaging equipment, and the ultra-wide-angle lens sequentially comprises,from an object side to an imaging surface along an optical axis, a first lens with negative focal power, wherein the object side surface of the first lens is a convex surface, and the image side surface of the first lens is a concave surface; a second lens with negative focal power, wherein the object side surface and the image side surface of the second lens are concave surfaces; a third lens with positive focal power, wherein the object side surface and the image side surface of the third lens are convex surfaces; a fourth lens with positive focal power, wherein the object side surface and the image side surface of the fourth lens are convex surfaces; a diaphragm; a fifth lens with positive focal power, wherein the object side surface and the image side surface of the fifth lens are convex surfaces; a sixth lens with negative focal power, wherein the object side surface and the image side surface of the sixth lens are concave surfaces, and the fifth lens and the sixth lens form a bonding body; and a seventh lens with positive focal power, wherein the object side surface and the image side surface of the seventh lens are convex surfaces near the axis. The ultra-wide-angle lens has the advantages of ultra wide angle, small temperature drift, low chromatic aberration and high resolution.

The invention discloses a visual carbon material structure and a preparation method thereof. The visual carbon material structure comprises a substrate required by the growth of a carbon nanometer material, the carbon nanometer material grown on the substrate, and a dye molecular layer coating the carbon nanometer material, wherein the molecule of the dye molecular layer contains a conjugated pi key system, can produce pi-pi interaction and intermolecular interaction with the surface of the carbon nanometer material, so as to be combined with the surface of the carbon nanometer material, and meanwhile has high light absorption capacity and fluorescence emission capacity. The invention further discloses a preparation method of the structure. The structure has the advantage that the positionand image of the carbon nanometer material can be clearly distinguished on the substrate in a low power optical microscope condition or a naked eye direct observation condition, namely the carbon nanometer material is developed on the substrate.

The present disclosure provides an information transmitting apparatus, an optical communication method, and an optical communication system for optical communication. The information transmitting apparatus includes a distance sensor configured to detect a distance between the information transmitting apparatus and a target receiving apparatus; a light emitting element configured to emit an opticalsignal to a target receiving device, wherein the optical signal includes optical communication information; a control unit electrically connected to the distance sensor and the light emitting element, respectively, configured to change the light emitting mode of the light emitting element according to the detected distance so that the intensity of the light signal received by the photosensitive sensor of the target receiving device reaches its starting light intensity. The scheme of the invention can reduce the power consumption of the information transmitting device in the optical communication process.

The invention provides a refined enhanced permission control and analysis system of an Android platform. A refined enhanced permission control and analysis system and combined permission security detection are combined into a whole; the coarse-grained authorization problem of the current Android system is effectively solved; permission combination analysis is combined, so the user can better understand the security degree of the application program in the permission level, and the actual authority management and control requirements of the user are met; a refined enhanced permission control system is designed and realized, so a user can perform three kinds of refined enhanced control on a single permission; a dynamic permission control system is provided, a permission combination analysisunit is added to an original Android system, a combination possibly causing potential safety hazards is found by analyzing permission, an analysis result is visually displayed to a user, and the useris helped to provide reasonable judgment on whether to authorize installation of an application or not; different levels and danger values are given to the permission, the threat degree of the application program is accurately quantified, and the invention has huge application and popularization value.