49results about How to "Achieve smoothing" patented technology

The invention discloses a sliding time window based WLAN (Wireless Local Area Network) indoor WKNN (Weighted K Nearest Neighbors) tracking method, relating to the field of mode identification and solving the problem of unsmooth estimated track, i.e. fierce shake of an estimated position coordinate, caused by elements of limited terminal sampling rate and difficult motion state obtain in the traditional WLAN indoor tracking method. The method comprises the steps of: firstly, acquiring signal samples and establishing a corresponding position fingerprint database; obtaining the pre-estimated position coordinate, motion rate and confidence region at different time of the terminal in real time with a WKNN positioning method according to a signal sample newly acquired; rejecting fault pre-estimated position points with abrupt signal intensity change in a pre-estimated position set compared with adjacent time position points according to a forward sliding time window threshold, a backward sliding time window threshold and a corresponding confidence region; and finally, connecting final estimated position points in chronological sequence to obtain the smooth estimated motion track for the terminal. The invention is suitable for indoor tracking and positioning.

This invention discloses a method and a device for calibrating channel quality instructions and dispacthing user data, the principle is that when a base station down high speed packet accesses the dispatched user data, it calibrates the channel quality instruction fed back by the user device then determines the transmission format of the data corresponding to the calibrated channel quality instruction and finally dispatches the user data to transmit them based on said determined transmission format, which carries out adaptive calibration to the channel quality instructions fed back by a user device to guarantee that the initial transmission BER, the statistic BER or residual BER will get the designed target value so as to fully utilize the gain brought with the adaptive modulation code and mixed automatic re-transmission requirement technology accessed by the down high speed packet.

The invention is applicable to the field of multimedia communication, and provides a method and a system for smoothly processing transmission stream and front-end equipment of a digital television. The system comprises a storage unit, a buffer unit, an access control unit and an output control unit, wherein the storage unit is used for receiving a first write instruction, receiving the transmission stream to be smoothly processed according to the first write instruction, receiving a read instruction, and sending the transmission stream according to the read instruction; the buffer unit is usedfor receiving a second write instruction, and receiving the transmission stream sent by the storage unit according to the second write instruction; the access control unit is used for sending the first write instruction to the storage unit according to the detected transmission stream to be smoothly processed, sending the read instruction to the storage unit according to a storage space state ofthe buffer unit, and simultaneously sending the second write instruction to the buffer unit; and the output control unit is used for selecting output transmission stream or output space packets according to the length of the transmission stream in the buffer unit. The method and the system achieve smooth processing of burst transmission stream at large code rate, and have high speed and low cost.

The invention discloses a computer aided restoration method of oracle bone rubbing font. The method comprises the following steps: scanning the fonts of a oracle bone rubbing on the paper to store in a computer; adjusting the size of the scanned picture, performing binarization processing; calculating the areas of all connected regions on the oracle bone rubbing and the number of the connected regions with the same area to obtain the distribution characteristics of the connected regions of the oracle bone rubbing, calculating the mathematical expectation of the areas of the connected regions, performing recognition processing to the areas of the regions, calculating the characteristic points of the glyph outlines of the oracle bone rubbing, calculating the end points of the stroke segments of the fonts according to the characteristic points, distinguishing different stroke segments according to the end points; performing squeezing transformation to each stroke segment of the oracle bone rubbing; and calculating the fractal dimension of each stroke segment of the fonts of the oracle bone rubbing. By using the method of the invention, time and labour are saved; and the method is convenient and fast, has good restoration effect and is suitable of the restoration of the fonts of oracle bone rubbings.

A harmless switching method for SETS function modules in a SDH system includes: mutually sending clock and frame location pulse between master and alternative modules for controlling state signals to control the one-from-two logic circuit to make the phase and frequency of the output system clocks and system frame location pulses of the two modules completely the same, each own voltage-control oscillator traces the same timing source. A returned button is set in them for controlling the alternative turning to the master by triggering it manually and the original master module is activated to realize switching. The alternative module output clock and the frame timing pulse are at ordinary output state not controlled by three states output. The module switch time scale is selected in the sphere of frame head so that the frame location pulse is continuous and a line interface module processes the clock sent by the master, alternative timing souses function module smoothly after one-from-two logic circuit.

The invention discloses a real-time face detection method based on a deep convolutional neural network, and the method comprises the steps of fusing data set information, creating face data, and dividing the face data into a training set, a test set, and a verification set according to a ratio; carrying out label manufacturing on the data set obtained in the first step, and changing a real label of the data set into a txt file; carrying out data enhancement on the data set obtained in the step 2; constructing a deep convolutional neural network with an end-to-end non-cascade structure; puttingthe data processed in the step 3 into the convolutional neural network constructed in the step 4 for training, and optimizing a loss function of the whole model by combining a random gradient descentmethod; and setting a category confidence threshold, and inputting the test part data set output in the step 5 and actual video data into a deep convolutional neural network for performance test. Themethod better integrates two advantages of time and performance, has better adaptability to the face angle, the illumination intensity and the shielding degree, and effectively improves the robustness of face detection and the generalization ability of the network.

The invention provides an I / O interface driving circuit capable of automatically controlling noise. The I / O interface driving circuit comprises an N-type transistor output driving circuit and a P-type transistor output driving circuit. The output signal and the input signal of an I / O interface are combined to form a combined signal for controlling the N-type transistor output driving circuit and the P-type transistor output driving circuit. Further, the combined signal is used for eliminating level bounce induced by a power end and a ground end when the output signal of the I / O interface is inverted. A first time delay circuit is used for adjusting the driving capability of the N-type transistor output driving circuit. A second time delay circuit is used for adjusting the driving capability of the P-type transistor output driving circuit. Thus, voltage overshoot of the output signal of the I / O interface is prevented; smoothness at the later inverting period of the output signal of the I / O interface is achieved; and the noise suppression capability of the I / O interface is improved.

The embodiment of the invention discloses a method for realizing stable display of a 5G signal. The method comprises the following steps: switching a main node by a dual-connection network, releasinga secondary cell group bearer, starting a first timer, and displaying the 5G signal; judging that the first timer is overtime, detecting that radio resource control is in an idle state, starting a second timer, and displaying a 5G signal; judging that the second timer is overtime, detecting that the radio resource control is in a connected state, querying the number of data radio bearers, and displaying a signal type according to the number; and detecting that the radio resource control is in an idle state, querying a 5G cell information database, and displaying a signal type according to the5G cell information. According to the scheme, the time of the timers can be flexibly adjusted, and the signal icons can be updated more efficiently and timely by using a plurality of timers; and moreover, by judging the number of the data radio bearers and the 5G cell information, the smoothing processing of the 5G signal is realized in a continuous environment with a continuously changing network, so that a user can better experience 5G.

The invention relates to an all-digital hemispherical resonant gyro frequency tracking loop based on a Costas ring. A gyro electrode vibration signal sampling circuit collects vibration signals on anx electrode and a y electrode of a gyro respectively; the two paths of vibration signals are respectively subjected to multiplication phase discrimination with output signals of a sin branch and a cosbranch of a voltage-controlled oscillator through a multiplier, and then are filtered through each low-pass filter; the filtered signals are calculated by a phase error signal arithmetic unit to obtain a phase error signal, and the phase error signal is sent to a loop filter; the loop filter generates a control signal according to the input phase error signal, and the control signal adjusts the phase of the output signal of the voltage-controlled oscillator NCO, so that the phase difference between the vibration signal and the output signal is continuously reduced until the loop locking steady-state phase difference is 0; based on the Costas ring technology, the frequency tracking loop design of the full-digital hemispherical resonator gyro is realized in the FPGA, the design can improvethe precision of frequency tracking, and the frequency tracking loop has the advantages of simple structure and strong universality.

The invention discloses a writing method based on a touch screen, and the method comprises the following steps: monitoring a writing operation of a user on the touch screen, obtaining coordinate dataof a touch point when an object slides on the touch screen when the writing operation is monitored, and enabling the faster the sliding of the object on the touch screen is, the larger the distance between the touch points is; calculating a first graphic parameter corresponding to the touch point based on the coordinate data, and smoothing a track of the touch point based on the coordinate data toobtain smooth point data of a smooth point in the track; and calculating a second graphic parameter corresponding to the smooth point based on the first graphic parameter, and drawing a preset graphbased on the first graphic parameter, the second graphic parameter, the coordinate data and the smooth point data to generate a writing track. The invention further discloses a writing device and equipment based on the touch screen and a readable storage medium. The writing effect is improved.

The present invention provides a data communication apparatus for solving the following problem. When generating coded frames of multiple data streams, in the case where there is a bias in code amount of the generated coded frame, the communication apparatus is instantaneously overloaded, causing packet losses. The network cameral terminal which is the data communication apparatus includes a sensor unit that takes images or audio information, a compression unit that compression-codes the image or the audio signal and generates coded frames (I-frame, P-frame, B-frame and others), a frame control unit that controls types of the coded frame generated by the compression unit using a generation table held in a generation table holding unit, and a communication unit that transmits the coded frames to multiple communication terminals on the network in parallel.

The present invention provides an image processing method and device, a pan-tilt and a storage medium. The method includes: establishing a re-projection error constraint function according to an original rotation parameter, wherein the original rotation parameter is the rotation parameter of the camera pose of a current frame image relative to the camera pose of a previous frame image, or the original rotation parameter is the rotation parameter of the pan-tilt posture of the current frame image relative to the pan-tilt posture of the previous frame image; optimizing the re-projection error constraint function to obtain an optimized rotation parameter; and correcting the current frame image according to the optimized rotation parameter. The solution can smoothly process a captured motion trajectory, and correctes an acquired image with high efficiency.

The invention relates to a G2 continuous Bezier cutter path smoothing algorithm based on a tolerance zone. The algorithm comprises the following steps of identifying a continuous processing area; in the continuous processing area, carrying out local interpolation on discrete command points, and converting a polyline processing path into a G1 continuous quadratic rational Bezier curve; adjusting the weights of the two adjacent quadratic rational Bezier curves and a tangential direction at a connection joint so that a processing path reaches G2 continuity; and reconstructing the quadratic rational Bezier curve which does not satisfy a precision requirement through establishing the tolerance zone. By using the method, real-time performance is good, a generated processing path satisfies G2 continuity and the precision requirement, and processing efficiency can be effectively increased.

The present invention provides a display method, a display apparatus, a display device, and a storage medium and belongs to the display technical field. The display method is applied to the display device. The display method includes the following steps that: a first image which is to be displayed in a display area is obtained; the edge of the first image is processed on the basis of a preset image edge processing algorithm, so that a second image can be obtained; and the second image is displayed in the display area. Thus, the jagged edge of the image displayed in the display area can be eliminated, and a display effect and user experience can be improved.

The invention discloses a method and a device for determining an advancing track, a readable medium and electronic equipment. The method comprises the following steps: determining a first positioningcoordinate of a positioning point in a world coordinate system, and determining a first reference coordinate of a reference point corresponding to the positioning point in the world coordinate system;determining an offset distance between the positioning point and the reference point according to the first positioning coordinate and the first reference coordinate; when the offset distance is greater than a preset distance threshold, correcting a first positioning coordinate of the positioning point to obtain a first corrected coordinate of the positioning point in the world coordinate system;determining the first correction coordinate as a track coordinate in the advancing track; determining an offset distance between the positioning point and the reference point, and judging whether thepositioning point drifts or not by utilizing a distance threshold value and the offset distance; and carrying out coordinate correction under the condition of positioning point drifting. The problemof inaccurate positioning caused by coordinate drifting is solved, and smooth processing of the advancing track is realized.

The invention discloses an automatic plastic packaging bag sealing and straightening packing machine for fried foods. The sealing and straightening packing machine structurally comprises a lifting frame, a containing tray, a packing machine main body, a feeding hopper, an opening and closing door measuring cup, a loading hopper, smoothening devices, a sealing station, a holding tray and a finishedproduct conveyor. The automatic plastic packaging bag sealing and straightening packing machine for the fried foods has the beneficial effects that according to the principle of same polarity repelling of a positive magnet, sufficient time is provided for smoothening of a sealing opening of a packaging bag, an inductor is matched with a transmission motor, under drive of a second gear when the two smoothening devices get close to each other, push plates move towards the two sides, scrapping plates straighten the sealing opening of the packaging bag, sealing opening corner wrinkles, sealing missing and other phenomena are prevented from being caused during heat sealing, and the quality of the foods is further prevented from being influenced; and the surfaces of scrapping plates are provided with wave strips of three-dimensional structures, smoothening of the sealing opening of the packaging bag is achieved, air in the area is extruded out, and wave-type flattening is used for conducting flat and matched heat sealing of the sealing opening.

The invention relates to the technical field of autonomous navigation, in particular to a path planning method and device based on an improved bidirectional RRT algorithm, and the method comprises the following steps: obtaining an environment image, and dividing the environment image into an obstacle region and a non-obstacle region through binarization; obtaining feature points of all obstacles, and setting initial priorities of all the feature points according to a pre-established priority configuration rule; on the basis of the initial priorities of the feature points, performing global path search in combination with an improved bidirectional RRT algorithm to obtain an initial path; and smoothing the initial path by using a Bezier curve to obtain a final path. According to the scheme, firstly, the feature points of all obstacles in the area are obtained, then dynamic priority setting is conducted on each feature point, then the information is combined with the improved bidirectional RRT algorithm to achieve accelerated search, the probability of expansion to a low-efficiency search area is reduced, memory consumption is reduced, meanwhile, smooth processing of the generated path is achieved, and the search efficiency is improved. And the actual execution of the intelligent mobile equipment is facilitated.

An embodiment of the invention provides a train cable testing method and device, and relates to the control technology of rail trains. The train cable testing method comprises the steps of: when determining that a current test mode is a dual-computer test mode, acquiring test data of diagnostic equipment arranged on two head trains of a train respectively, wherein diagnostic equipment arranged atone train head of the train passively responds to diagnostic equipment arranged at the other train head of the train; and processing the obtained test data to obtain test information of cables connecting two head vehicles of the train.

The invention provides a method and device for removing an image finger based on fixed areas, which comprise the following steps of: acquiring a Rect area image in a predetermined area; splitting theRect area image into an upper Rect area sub-image and a lower Rect area sub-image. The original image is the image of the upper edge area of the upper Rect area sub-image in order to fill the upper Rect area sub-image, the image of the lower edge area of the lower Rect area sub-image is the original image, and the lower Rect area sub-image is filled. The treatment with color permeation is carriedout at the junction of the sub-image of the upper Rect area and the sub-image of the lower Rect area. Firstly, the position of the finger is framed and limited, and then the range of the selected frame is projected and filled, and the color permeation on each other at the splicing position of the upper and the lower projection is carried out so as to realize the smooth processing at the splicing position. By adopting the scheme, no matter what environment is required for image acquisition, the mapping filling in the frame selecting region can be realized without being subject to the pressing of the fixed skin color finger, and the universality and the accuracy of removing the finger are realized.

The invention discloses a phase smoothing processing method and device and a computer readable storage medium. The phase smoothing processing method comprises the steps of: acquiring the signal amplitude of a current sampling point in a phase signal; when it is determined that the signal amplitude of the current sampling point is smaller than a preset amplitude threshold, acquiring a difference value between a phase value of the current sampling point and a phase value of a first sampling point; and when the difference between the phase value of the current sampling point and the phase value of the first sampling point is greater than a preset first threshold, updating the phase value of the current sampling point. According to the scheme, the frequency of phase signal hopping can be reduced.

The invention discloses a side-scan sonar image processing method and device. The method comprises the following steps: 1) setting a sliding window M for an acquired side-scan sonar image to perform sliding caching; 2) carrying out denoising processing on the cached image; 3) image layering enhancement; taking the denoised image as an input signal of bilateral filtering layering, calculating high-frequency image data of single-line frame data based on cache block filtering data, and performing weighted fusion on the high-frequency image and an original data image to realize image enhancement; and 4) carrying out gray scale equalization processing on the enhanced image. According to the method, the details of the image are effectively enhanced through processing, and the real-time performance of processing is ensured.

The invention relates to the field of interventional equipment used in orthopedic surgery, in particular to a replacement scaphoid bone used in orthopedic surgery. The problems that in the prior art,scaphoid rehabilitation time is long, and rehabilitation difficulty is large are solved. The artificial scaphoid bone comprises an upper bone block, a lower bone block and a limiting block for limiting the assembling directions and the assembling angle freedom degrees of the matching state of the upper bone block and the lower bone block, the upper bone block, the lower bone block and the limitingblock comprise metal tantalum structures formed through 3D printing, and the upper bone block, the lower bone block and the limiting block form an artificial scaphoid bone combination body. The assembly comprises metal holes with the hole diameters sequentially decreased from inside to outside, and operation suture cavities are formed in the two ends of the limiting block so as to suture fascia and the assembly. The scaphoid bone for replacement has the advantages that firstly, the scaphoid bone replacement time can be shortened, and secondly, the postoperative use strength and use flexibility can be guaranteed, which are not possessed by previous products.

The invention relates to an alloy pipe surface corrosion prevention device with a good effect. The device comprises a base, a supporting rod, a clamping mechanism, a uniform smearing mechanism, an opening mechanism and a corrosion prevention mechanism; and the uniform smearing mechanism and the corrosion prevention mechanism are both arranged on the base. According to the alloy pipe surface corrosion prevention device with the good effect, clamping of a workpiece is achieved through the clamping mechanism, corrosion prevention of the workpiece is achieved through the corrosion prevention mechanism, uniform smearing of a preservative is achieved through the uniform smearing mechanism to achieve a better corrosion prevention effect, and operation of the clamping mechanism and the uniform smearing mechanism is limited through the opening mechanism; compared with an existing opening mechanism, the opening mechanism of the device can be started through treading, manpower is saved, a pure mechanical structure is adopted, and the practicability is high; compared with an existing uniform smearing mechanism, the uniform smearing mechanism of the device not only achieves uniform smearing ofthe preservative, but also achieves auxiliary clamping of the workpiece; and compared with an existing clamping mechanism, the clamping mechanism of the device adopts flexible clamping, so that the situation that the surface of the workpiece is scratched due to rigid clamping is avoided, and the workpiece is protected.

The invention is applicable to the field of multimedia communication, and provides a method and a system for smoothly processing transmission stream and front-end equipment of a digital television. The system comprises a storage unit, a buffer unit, an access control unit and an output control unit, wherein the storage unit is used for receiving a first write instruction, receiving the transmission stream to be smoothly processed according to the first write instruction, receiving a read instruction, and sending the transmission stream according to the read instruction; the buffer unit is usedfor receiving a second write instruction, and receiving the transmission stream sent by the storage unit according to the second write instruction; the access control unit is used for sending the first write instruction to the storage unit according to the detected transmission stream to be smoothly processed, sending the read instruction to the storage unit according to a storage space state ofthe buffer unit, and simultaneously sending the second write instruction to the buffer unit; and the output control unit is used for selecting output transmission stream or output space packets according to the length of the transmission stream in the buffer unit. The method and the system achieve smooth processing of burst transmission stream at large code rate, and have high speed and low cost.

The present invention relates to materials comprising reduced graphene oxide, wherein the degree of reduction of the graphene oxide exhibits a spatial variation such that the material exhibits a gradient in conductivity and / or permittivity. The material may eg be used in electrical devices for field grading and / or charge dissipation purposes. Examples of electrical devices in which the material is beneficial include cable accessories, bushings, power cables, microelectronics, switchgear, and the like. The invention further relates to a method of manufacturing a material for electrical applications. The method involves treating different parts of the graphene oxide element differently to achieve different degrees of reduction of the graphene oxide within the element, resulting in a sample with a gradient in conductivity and / or permittivity. The material can be obtained, for example, by applying a thermal gradient to the graphene oxide element, or by irradiation of the graphene oxide element.

The invention discloses a sliding time window based WLAN (Wireless Local Area Network) indoor WKNN (Weighted K Nearest Neighbors) tracking method, relating to the field of mode identification and solving the problem of unsmooth estimated track, i.e. fierce shake of an estimated position coordinate, caused by elements of limited terminal sampling rate and difficult motion state obtain in the traditional WLAN indoor tracking method. The method comprises the steps of: firstly, acquiring signal samples and establishing a corresponding position fingerprint database; obtaining the pre-estimated position coordinate, motion rate and confidence region at different time of the terminal in real time with a WKNN positioning method according to a signal sample newly acquired; rejecting fault pre-estimated position points with abrupt signal intensity change in a pre-estimated position set compared with adjacent time position points according to a forward sliding time window threshold, a backward sliding time window threshold and a corresponding confidence region; and finally, connecting final estimated position points in chronological sequence to obtain the smooth estimated motion track for the terminal. The invention is suitable for indoor tracking and positioning.

A flow profile (2) for a vehicle, the flow profile (2) comprising at least one planar skin section (4) and at least one active flow control device (18), wherein the at least one The flat skin section (4) has an outer side (8), an inner side (16) and at least one opening (10) penetrating the skin section, the at least one active flow control device (18) being designed Into used to control the air volume. The at least one active flow control device (18) comprises an air discharge section (21) fluidly connected to the at least one opening (10), wherein the air discharge section (21) and the at least one planar The skin section (4) is produced by means of a layer manufacturing process in the form of a one-piece part without joints, and the air outlet section at least partially supports the skin section (4) in a load-bearing manner.

The present invention provides a method and device for removing an image finger based on a fixed area. The method includes: collecting a Rect area image of a predetermined area in an image; splitting the Rect area image into an upper Rect area sub-image and a lower Rect area sub-image; The image of the upper edge area of ​​the sub-image of the Rect area is the original image, and the sub-image of the upper Rect area is filled; the image of the lower edge area of ​​the sub-image of the Rect area below is the original image, and the sub-image of the lower Rect area is filled; the sub-image of the upper Rect area and The junction of the sub-images in the lower Rect area. First, the position of the finger is limited by frame selection, and then the range of the frame selection is projected and filled, and the color penetration is carried out at the splicing of the upper and lower projections, so as to achieve smooth processing at the splicing. With the above solution, no matter what kind of environment we collect images and not subject to the pressing of a finger with a fixed skin color, we can realize the mapping and filling in the frame selection area, and realize the versatility and accuracy of finger removal.

The invention provides a manufacturing method of a polysilicon thin film, a thin film, a transistor, a substrate and a laser device. The method comprises: forming a buffer layer on a substrate; forming an amorphous silicon layer on the buffer layer; performing excimer laser annealing on the amorphous silicon layer for the first time with a laser beam of a first wavelength; The amorphous silicon layer after the sub-excimer laser annealing is subjected to a second excimer laser annealing with a laser beam of a second wavelength, wherein the second wavelength is smaller than the first wavelength. The method of the present invention can solve the problem of high surface roughness and non-uniform polysilicon crystal grains caused by excimer laser annealing in the prior art to produce a low-temperature polysilicon film through two excimer laser annealings with different wavelengths.