78results about How to "Reduce the number of repetitions" patented technology

The invention provides a detection method for determining alteration of shooting background and an image processing device; wherein the method comprises the following steps: determining a background identification area in a background reference image; identifying an imaging area of a feature in source background in the background reference image by the background identification area; using the current frame image to obtain a contrast image of the background reference image; contrasting an image in the background identification area in the background reference image with the image in corresponding area in the contrast image to obtain a contrast result; according to the contrast result, detecting whether the shooting background in the current frame image conforms to the source background, if yes, determining the shooting background unaltered; otherwise, determining the shooting background altered. The technical proposal provided by the embodiment of the invention can effectively reduce the false detection probability on whether the shooting background is alters or not.

The invention discloses an information processing method and an electronic device. The method comprises the steps of acquiring a preview image of a target to be photographed by the electronic device and a preset image photographing parameter for determining a photogram time when a photographing instruction is received; acquiring image characteristic information corresponding to a type of the preset image photographing parameter from the preview image according to the preset image photographing parameter; matching the acquired image characteristic information with the preset image photographing parameter, and carrying out the automatic photography if the acquired image characteristic information is successfully matched with the preset image photographing parameter. According to the method and device, the automatic photographing time is determined according to the characteristic information in the preview image, so that the current situation of the photographed target can be more intelligently adapted, and the repeated operating times of the automatic photographing can be reduced.

The invention discloses a data retransmission method, a data retransmission device, terminal equipment and a storage medium. The data retransmission method is applied to a receiving end, and comprisesthe steps of: receiving data packets transmitted by a transmitting end, wherein each data packet carries a serial number used for describing the uniqueness of the data packet, the serial numbers areconsecutive, and the receiving end and the transmitting end are based on an unreliable protocol; storing a missed serial number in a pre-retransmission cache region when detecting that the serial numbers of the acquired data packets are not consecutive, recording storage time of the missed serial number and calculating to-be-used time of the data packet corresponding to the missed serial number; and requesting for retransmission of the data packet of a target serial number to the transmission end or a third end storing the data packet corresponding to the missed serial number, wherein the target serial number comprises a serial number with the storage time reaching first preset time or the to-be-used time not longer than second preset time. The data retransmission method, the data retransmission device, the terminal equipment and the storage medium aim to solve the problem of data retransmission redundancy or influence on data usage in the existing data retransmission technology.

A face-end support for the track channel of a fully-mechanized caving face is composed of an anchor support (1), a fore support (2), a face-end support (3), and a tail-end support (4). The anchor support has a four-pillar and four-connection-rod structure and includes an internal and an external supports, wherein both the internal and the external supports are composed of a top beam, a pedestal, two pillars and a four-connection-rod mechanisms. The fore support includes 3 to 5 groups, and each group has an eight-pillar structure and includes an internal and an external supports, wherein both the internal and the external supports are composed of a hinged top beam, a hinged pedestal, four pillars, a four-connection-rod and single-swing-rod mechanism, and a forepoling beam. The face-end support includes 1 to 3 groups, and each group has a four-pillar and four-connection-rod structure and includes an internal and an external supports. The tail-end support has a six-pillar hinge beam structure. An adjusting jack is arranged between the top beams of the internal and the external supports and the pedestal of each support. The face-end support solves the problems that the anchor support has difficulty in changing the pillars and is not easy to bear offset loads and that the distance between pedestals of the internal and the external supports is not easy to be adjusted. Accordingly, the face-end support has more reasonable force bearing capacity, and can improve the support ability and the stability of the support. Two kinds of step pitch moving supports reduce repeatedly supporting. The face-end support is suitable for channels with large pressure and large deformation along hollow tracks.

The invention discloses a circular self-movement type tunnel advance support hydraulic holder which comprises an auxiliary suspended holder, an end head hydraulic holder, supporting beam assemblies and a flexible transmission device, wherein the auxiliary suspended holder and the end head hydraulic holder are oppositely arranged, the supporting beam assembly is leveled with the auxiliary suspendedholder and the end head hydraulic holder, and the flexible transmission device is used for moving the supporting beam assemblies. The flexible transmission device comprises flexible elements, an initiative wheel and a passive wheel, wherein the initiative wheel and the passive wheel are used for driving the flexible elements. The supporting beam assemblies comprise bases, supporting beams for supporting a top plate and stand columns, wherein the stand columns are arranged on the bases and are used for lifting the supporting beams, and the stand columns are hinged with the supporting beams. Lifting lugs are arranged on the supporting beams and are matched with the flexible elements. Grooves matched with the lifting lugs for transferring the supporting beam assemblies are formed in the initiative wheel and the passive wheel. The circular self-movement type tunnel advance support hydraulic holder is fast in moving speed and convenient to operate, repeat supporting is not carried out on the top plate, practical using requirements of the tunnel can be adapted, and safe and efficient production of coal miningworking faces can be achieved.

The invention discloses equipment for producing a bonding wire for packaging a semiconductor, which comprises a wire releasing device, a wire-drawing machine, a quenching and tempering device and a take-up device, wherein a metal wire in the wire releasing device is sent to the wire-drawing machine through a leading mechanism; the wire-drawing machine is arranged on one side of a wire outlet of the wire releasing device and comprises a wire-drawing component; the metal wire led out of the leading mechanism of the wire releasing device is connected to a wire-drawing component capable of gradually drawing the outer diameter of the metal wire small; the quenching and tempering device is arranged on one side of a wire outlet of the wire-drawing machine and comprises a wire sending device, a washing device, a coating device, an annealing device and a roasting oven; a thin metal wire conforming to specifications and pulling out of the wire-drawing machine is sent to the washing device through the wire sending device; the washed metal wire enters the annealing device for annealing; the annealed metal wire enters the coating device for coating; the coated metal wire enters the roasting oven for drying and then enters a cooling device for cooling; the wire take-up device is provided with a wire containing tray for collecting a finished wire, and the wire containing tray is connected with a driving device and driven by the driving device.

A method is provided for determining delay between random access channel and downlink control channel in random access procedures. The method comprises receiving from a base station, by a user equipment, information related to one or more delay(s) between a random access channel and one or more repetition period(s) of a downlink control channel for the user equipment; sending to the base station, by the user equipment, the random access channel transmitted in a repetitive form; receiving, by the user equipment, the one or more repetition period(s) of the downlink control channel, wherein each of the one or more repetition period(s) of the downlink control channel is transmitted according to a corresponding one of the delay(s); and determining, by the user equipment, the one or more delay(s) based at least on the information related to the delay(s).

A hydraulic support device and supporting method based on extending in roadway, comprising a hydraulic support I (301) disposed at a front end of the roadway, a hydraulic support II (302) disposed ata rear end of the roadway, and a fulcrum connecting device arranged between the hydraulic support I (301) and the hydraulic support II (302) and embedded in the bottom surface of the roadway, throughthe hydraulic support I (301) and the hydraulic support II (302), the roadway is supported and protected, and through the fulcrum connecting device, the hydraulic support I (301) and the hydraulic support II (302) are connected to each other and supported by each other, and are no longer separately supported on the respective working faces, thereby improving the reliability of the roadway support.

Disclosed is a method for preparing graphene. In particular, the method comprises: using n-hexane or propane as a supercritical solvent, filling graphite powder or graphite powder and a cosolvent into an autoclave, sealing the autoclave by selecting an appropriate rupture disk, adding n-hexane or propane after the autoclave is vacuumized, keeping in a supercritical state for a period of time at a temperature and a pressure, then increasing the temperature and the pressure slightly or increasing the pressure alone,, and a collector collecting rushed-out materials instantly for treatment to prepare a graphene product after the rupture disk bursts when the pressure exceeds the pressure which the rupture disk can bear. In the present method, pressure relief occurs in milliseconds, and thereby efficient strip of graphite can be achieved. The method belongs to a physical process, does not cause large damage on the structure of graphene, is simple in the preparation process, does not require a large quantity of inorganic acids and oxidants, and is free of "three wastes". The prepared graphene crystal is intact in structure, good in quality, and capable of achieving large-scale industrial production of graphene.

The invention discloses an operation sequence selecting method suitable for an STP operation test. The operation sequence selecting method suitable for the STP operation test comprises the steps of abstracting a whole railway yard into binary tree representations of different tree roots according to throats by using station tracks as boundaries, yard edge segments as root nodes, station tracks asleaf nodes and equipment on a path as other nodes of a binary tree; carrying out depth-first search on each tree and intensively marking passing segments; and after all searches are finished, using marked information to calculate an occupation error and a clearance error of each segment. According to the operation sequence selecting method suitable for the STP operation test, through tree form modeling, depth-first search and undetected segment statistics, the coverage of operation segments is guaranteed, and the omission probability of completely depending on manually following a vehicle to review the lengths of segments is effectively reduced. Through statistics of operation conditions and results of different segments, statistical analysis of the segment length error is automatically output so that the working intensity of manually following and watching the vehicle is effectively reduced, and the statistical accuracy is improved.

The invention relates to the technical field of medical apparatuses, and in particular to a vascular radio-frequency ablation electrode catheter provided with claw-shaped catheter branches; a radio-frequency ablation working section is arranged on the front section of the vascular radio-frequency ablation electrode catheter , a catheter body section is arranged on the middle section of the vascular radio-frequency ablation electrode catheter and a control handle section is arranged on the rear section of the vascular radio-frequency ablation electrode catheter; the eight radio-frequency catheter branches extend from a peripheral direction of the radio-frequency ablation working section; the eight radio-frequency catheter branches are integrally represented as claw-shaped structures; and at least one ablation electrode is connected to the head end of each radio-frequency catheter branch. The vascular radio-frequency ablation electrode catheter provided by the invention has the beneficial effects that in practical clinical treatment, the vascular radio-frequency ablation electrode catheter provided with the claw-shaped catheter branches provided by the invention can be applied to various blood vessels differing in diameter and can be used for conducting radio-frequency ablation therapy on cardiac muscle tissues in a complex part, such as for vascular ablation of such diseases as paroxysmal atrial tachycardia, supraventricular tachycardia, atrial flutter, atrial fibrillation, resistant hypertension and the like.

The invention discloses a nest cleaning auxiliary tool, characterized by comprising a support body (8). The support body (8) is movably connected to an upper movable support pole (6) and a lower movable support pole (10) through movable support pole fixing bracket joints (3), and spring pins (4). An upper end of the support body (8) is connected to two hooks (2) and a suspension ring (9). A bag (7) sleeves the support body (8), the upper movable support pole (6), and the lower movable support pole (10). An upper end of the bag (7) is folded at the upper movable support pole (6) and is fixed through an upper row of fixing holes (5) and a lower row of fixing holes (5) on the bag. The nest cleaning auxiliary tool has simple structure, convenient carrying, high safety, and low cost, is repeatedly usable and convenient for the work personnel to clean the nest on the pole, store foreign materials and transport materials up and down, and raises the nest cleaning efficiency.

A method includes inspecting a mask to locate a defect region for a defect of the mask. A phase distribution of an aerial image of the defect region is acquired. A point spread function of an imaging system is determined. One or more repair regions of the mask are identified based on the phase distribution of the aerial image of the defect region and the point spread function. A repair process is performed to the one or more repair regions of the mask to form one or more repair features.

The invention discloses a data fusion alliance game method and a data fusion alliance game system for a wireless sensor network. The method comprises the following steps: building an alliance game model based on the wireless sensor network, taking a Shapeland value as a solution of alliance income distribution, and determining a relay node according to the size of the Shapeland value; taking the unmanned aerial vehicle as an aggregation node in the wireless sensor network to collect data, and determining a flight path and a flight direction of the unmanned aerial vehicle; and the unmanned aerial vehicle performs preliminary data fusion on the collected data, and removes repeated parts in the collected data. According to the invention, the unmanned aerial vehicle is used as a mobile aggregation node in the wireless sensor network; a proper sensor data transmission path is selected according to the Shapley value, so that the energy consumption of the sensor is more uniform, more reasonable and more efficient, the life cycle and the working efficiency of the wireless sensor network are improved, the data storage amount of the unmanned aerial vehicle is reduced by adopting data fusion,and the working time of the unmanned aerial vehicle is prolonged.

This invention provides a hierarchical word-input method for portable electronic devices, which divides words to be input into several groups in the same number with the input keys and sets up corresponding relation between the input keys and the word groups then divides the activated groups into the next stage word groups according to the number of the keys till the word of the next stage word group corresponding to an input key can be input by one key, which can input words in less times to reduce the key number.

The invention relates to a method for designing a die surface of a die, comprising generating a workpiece simulation-model corresponding to a workpiece, generating a target simulation-model corresponding to a target formed part, determining an initial die surface, which an initial numerical simulation predicts as forming the workpiece simulation-model into the target simulation-model, determiningresidual stresses resulting from forming the workpiece simulation-model into the target simulation-model, with a die having the initial die surface, forming the workpiece into an actual formed part, by measuring the actual formed part, generating a numerical representation of the actual formed part, based on the numerical representation of the actual formed part, generating an actual simulation-model, based on the residual stresses, matching the actual simulation-model and the target simulation-model, based on deviations between the matched target simulation-model and actual simulation-model,modifying the initial numerical simulation to provide a modified numerical simulation, and determining a corrected die surface, which the modified numerical simulation predicts as forming the workpiece simulation-model into the target simulation-model.

Described is an apparatus for performing a Galois field product computation on data. A first symbol data includes a plurality of symbols each being a bit sequence on which a product operation by a factor alpha is to be performed in a Galois field, where alpha is a primitive element of the Galois field, is acquired. A factor alpha computation is performed on the first symbol data by performing a bit shift operation on the first symbol data toward high-order bit position, generating first mask data from the first symbol data, generating first correction data by computing a logical AND of the first mask data and a first symbol correction value, generating a factor alpha computation result by computing a XOR of the second symbol data and the first correction data.

The invention discloses a simulation method for controlling the thickness of a hot dip coating and a simulation device for controlling the thickness of the hot dip coating. The simulation device includes a chemical reagent reservoir, a transparent roller, an air knife, a diffuse reflection light source, a high-speed camera, a motor, a pressure detection instrument, a baffle and a fan; the transparent roller is arranged at an upper portion inside the chemical reagent reservoir; the motor drives the transparent roller; the surface of the transparent roller is provided with the pressure detection instrument; the diffuse reflection light source is arranged inside the transparent roller; one side of the roller is provided with the air knife; and one side of the air knife is provided with the high-speed camera which is located above the transparent roller. The simulation method includes the following steps that: (1) a simulation plating solution is injected into the chemical reagent reservoir, and the pressure detection instrument, the air knife and the motor are started, and a dynamic hot galvanizing process is simulated; (2) the high-speed camera is started to acquire images and data, and the thickness of the coating of the simulation plating solution and an image gradation corresponding data table is contrasted, and data analysis is performed; and (3) the simulation plating solution is collected, and cyclic operation is performed. With the simulation method and the simulation device for controlling the thickness of the hot dip coating adopted, parameters can be optimized, the times of repeated experiments can be reduced, work efficiency can be improved, and the consumption of hot galvanizing experiment-used steel bars and raw materials can be decreased.

The embodiment of the invention discloses an element scaling control method and device, equipment and a storage medium. The method comprises the steps of receiving a first scaling event acting on a selected element at the current moment; determining a current scaling information group corresponding to the first scaling event; obtaining a previous zoom information group, wherein the previous zoom information group corresponds to a second zoom event acting on the selected element at the previous moment; determining a current target zoom value corresponding to the first zoom event according to a previous zoom information group and the current zoom information group; and according to the current target zoom value, controlling the zoom and display of the selected element. By utilizing the method, the change process of scaling can be controlled according to the moving speed of the user in the moving process of the scaling gesture, so that the scaling sensitivity during small-amplitude scaling can be better reduced, the effectiveness of scaling control is improved, the scaling speed during large-amplitude scaling is improved, and the repeated execution of the scaling gesture of the user is reduced.

The invention relates to a method and a system for merging to display application icons in a folder. The method is characterized by comprising the following steps of obtaining a first operating signal through a touch screen so as to select a folder; obtaining a second operating signal through the touch screen so as to select a one-key empty application icon, and executing an icon arranging instruction; normally displaying at least one default effective operating icon in the folder on the touch screen by a processing unit according to the icon arranging instruction, and displaying at least one redundancy icon in the folder except the at least one default effective operating icon in a dimmed manner; regulating the effective operating icon and the redundancy icon by using the demand value according to an icon; clicking the one-key empty application icon again so as to display the at least one default effective operating icon in the folder in a destination folder.

The invention discloses a liquid-drop wall-impingement experimental device capable of correcting drop point drift, belongs to the technical field of liquid-drop wall-impingement experiment. The devicecomprises a gas path module, a gas flow acceleration control module, a windproof long pipe, a sliding guide rail, a supporting platform and a liquid-drop generation module; the gas path module is used for providing gas for driving the liquid-drop to accelerate and fall; the liquid-drop generation module is used for repeatedly generating a single liquid-drop; the gas flow acceleration control module is used for guiding gas flow of gas provided by the gas path module, eliminating turbulence, generating laminar flow and performing acceleration process on the liquid-drop through the laminar flow,so that the liquid-drop accelerates and fall and dripped on a testing plane; and the windproof long pipe is mounted on the sliding guide rail and is in a vertical state, wherein a gap is reserved between the bottom portion thereof and the testing plane and the top portion thereof is directly opposite to the liquid-drop outlet end of the gas flow acceleration control module. According to the liquid-drop wall-impingement experimental device, the drop point of the liquid-drop can be completely locked by adding a windproof long pipe with the inner diameter larger than the liquid-drop, thereby effectively solving the problem of drift of the liquid-drop caused by external air.

The invention provides a method for determining the basic rotating speed of a roller of an ultra-large-diameter sizing and reducing mill. Aiming at given hole pattern geometrical parameters and inletpipe geometrical parameters, the method utilizes a metal axial force balance equation, a circumferential force balance equation, a metal internal average stress equation and the like in a hole patternto simultaneously solve stress and strain states of metal in the hole pattern, and finally determines basic rotating speed values required to be set by each roller. According to the method, the calculation precision of subsequent force energy parameter calculation can be improved, and the repeated times of new process production experiments can be reduced, and basic rotating speed guidance is provided for further controlling the wall thickness distribution of the pipe by adjusting the rotating speed difference of all the racks, and the design and experiment time is saved, and the requirementsof users with higher requirements are met.