189results about How to "Lower Consistency Requirements" patented technology

A multiprocessor system with cells having a plurality of CPUs sharing a memory and a consistency control device connected through a network, in which the consistency control device includes a request unit which issues an access request and a speculative access request, a home unit which receives an access request from the request unit of each cell, and an owner unit which receives a speculative access request from the request unit of each cell, the request unit further including an owner decision unit which predicts a cell holding requested data and a determination unit which determines whether processing based on prediction is to be conducted or not.

The invention discloses a VHF (very high frequency) frequency-range intracloud lightning detecting and positioning system, which comprises a central treatment station and a plurality of detection and treatment sub-stations arranged in different positions, wherein the detection and treatment sub-stations and the central treatment station are accessed into a public wide area network in a wired or wireless mode; and through the wide area network, on one hand, obtained intracloud lightning detection data is uploaded to the central treatment station by the detection and treatment sub-stations, andon the other hand, the working state of each detection and treatment sub-station is remotely monitored by the central treatment station. The system can be used for precisely estimating the incidence directions of lightning radiation signals of a plurality of simultaneously occurring lightning radiation sources or the same lightning radiation source arriving at the detection sub-stations through different propagation paths, the arriving time difference of the lightning signals between any two detection and treatment sub-stations is calculated at the central treatment station (TDOA estimation),and the spatial position of an intracloud lightning radiation source is determined by DOA and TDOA information.

The invention discloses a direct-current breaker including a converter circuit, a cutoff circuit and an energy-absorption circuit which are connected in parallel. A breaker comprises a control circuit which is connected to the converter circuit, the cutoff circuit, the energy-absorption circuit and a main circuit respectively. The converter circuit comprises converter units connected in series and at least one mechanical switch. The cutoff circuit comprises N cutoff units connected in series. Arc-less breaking of current can be realized rapidly with the direct current breaker controlled; and number of switches of a power semiconductor is greatly decreased on the premise of realizing two-way cutoff capacity is realized, and cost is reduced.

A rotary die cuter for a box making machine has an abrading cylinder mounted for rotation alongside the anvil for engaging and resurfacing the blanket of the anvil on a virtually continuous basis to smooth, level and even the surface of the blanket. This resurfacing occurs during normal operation of the rotary die cutter so no production is lost. The abrading cylinder has a sheet layer of abrasive material spirally wrapped on the surface of the cylinder and bonded thereto with adhesive material on the backside of the sheet layer. The abrading cylinder is movable towards or away from the anvil by a servo motor and gearbox. The position of the abrading cylinder relative to the anvil is determined by an encoder which sends the information to a computer or programmable controller which calculates the changing diameter of the blanket and the amount of speed change that must be imparted to the anvil to compensate for its changing diameter. The computer or programmable controller is connected to a drive system of the anvil to effect the speed change.

The invention discloses a small-size self-centering one-way loading biaxial tension-compression test device. The device is characterized by comprising a loading transmission device and a combined type framework, wherein the combined framework is composed of a main framework 1 and a suspension framework 2, the loading transmission device comprises transverse loading shafts (12 and 13), vertical loading shafts (10 and 15), inclined rigid rods (9, 11, 14 and 16), transverse sliding rods (3 and 7), sliding connectors (4 and 8), stepping motors (5 and 6), fixing and sliding dual-use hinged supports (23 and 24) and fixing hinged supports (25 and 26). According to the small-size self-centering one-way loading biaxial tension-compression test device, the function of biaxial tension and compression can be achieved by means of one-way loading; and simultaneously, problems that the fluctuation process that the center of a test piece is deviated and goes back to the center of the loading device happens in the test process always and the test piece is difficult to clamp and adjust are solved.

The embodiment of the invention provides a method for detecting a target video fragment in a video. The method comprises the steps that one episode of a television drama is manually selected, and point location information of opening content and/or tail content in the episode of the television drama is marked; the manually-marked opening content and/or tail content in the episode of the televisiondrama is taken as the target video fragment; the image features of various key frames of various shots in the target video fragment are acquired by means of the methods of video shot detection, videoshot analysis and image feature extraction; the acquired image features are stored in a database to serve as a matching template; and for other episodes in the television drama, automatic detection on the repeated target video fragment in the television drama is achieved by adopting a template matching mode. According to the method, the workload of marking the target video fragment is reduced from the workload that all the episodes of the television drama need to be marked manually to the workload that only one episode of the television drama needs to be marked manually; and the manual workload can be reduced significantly.

The invention provides an anti-pinch control method for a vehicle open-close body. In method, a self-study initializing step of the open-close body is finished first and then the anti-pinch control of the open-close body is realized. The anti-pinch control method comprises the following steps of: judging the area where the open-close body is positioned by acquiring a current position signal of the open-close body; acquiring a rotating speed value n and a voltage value U of a current motor, and obtaining the current load torque value T of the motor according to the formula 3:n=aU-kT-A; comparing an anti-pinch torque threshold Tp and the load torque value; if the T is greater than the Tp, controlling the motor to rotate reversely according to the judgment results of the area where the open-close body is positioned currently and the stroke position of the area; and otherwise, continuing to perform the current operation. In the anti-pinch method, the error of anti-pinch force is only related to the rotating speed droop constant of an actual motor, so that the effect of reducing variable number to reduce the error is achieved; the requirement on motor consistency is low; and the control cost is reduced.

The invention discloses a dynamic balancing device for balancing a battery pack in charging or discharging. The dynamic balancing device overcomes the defects that in the existing balancing device, the energy consumption is more and the balancing capability is weak. The device adopts the technical scheme that an electric connecting mode among all single batteries or submodules in the battery pack is changed dynamically, i.e., the series-parallel state of the single batteries or the submodules in the battery pack is changed, so that the purpose of leading the battery pack to tend to be balanced is achieved. During discharging, the voltage of each level in the battery pack is acquired. When the voltage difference is large, one single battery is pushed to the level with lowest voltage from the level with highest voltage; and when the voltage difference is small, a plurality of single batteries or the submodules are connected with different levels in a time-sharing manner, the time for parallel connection with the levels with lower voltages is longer, and the proportional integral and differential adjustment can be carried out on the specific time according to all levels of voltages so as to lead the battery pack to tend to be completely balanced.

The invention relates to the field of computer graphics, and discloses a linear feature matching method and system. The method comprises the steps of acquiring a digital image; utilizing an SIFI algorithm to carry out feature point extraction and matching on the digital image; Gaussian filtering and eliminating noise; classifying pixels; acquiring a matching line candidate set; calculating an overlap part of a referenced line and a candidate matching line in the matching line candidate set; realizing line matching according to geometrical features and grey information of the line. The applicability of line feature matching is improved, and the requirement on the consistency of matching line attribute is reduced.

The invention discloses a device of single-polarization dual-wavelength fiber grating laser producing microwaves, millimeter-waves, which is characterized in that: the slot end (41) of a Y-divider on the device is connected with a polarization maintaining fiber grating (11); the output of the slot end terminal of the Y-divider is connected with a detector (51); a fork arm (42) of the Y-divider is connected with an active fiber (21); the other end of the active fiber is connected with a broadband fiber grating (12), and forms a resonant cavity with the polarization maintaining grating (11 ); a fork arm (43) of the Y-divider is connected with an active fiber (22), the other end of the active fiber (22) is connected with a broadband fiber grating (13), and forms the other resonant cavity with the polarization maintaining grating (11 ); the pumping lights (31) and (32) are coupled into the active fibers (21) and (22) by two couplers which are respectively on the back of the broadband fiber grating (12) and (13), and respectively generates single-polarized lasers, and enters the detector (51) through the fiber terminal (41), and difference frequency microwaves or millimeter-waves are produced in the detector.

The invention discloses an injection-molded part forming method requiring two stages of core pulling. During mold splitting, a core pulling oil cylinder drives a primary core pulling sliding block slidingly connected with the interior of a secondary core pulling sliding block to slide backwards, and the primary core pulling sliding block then drives a core pulling spindle slidingly connected with the primary core pulling sliding block to move backwards, so that primary core pulling is completed; the core pulling oil cylinder continues to act to pull the secondary core pulling sliding block to move backwards through the primary core pulling sliding block, so that secondary core pulling is completed; then, a product is ejected out of a movable mold; the core pulling oil cylinder acts backwards to allow the primary core pulling sliding block to move forwards, then to drive the core pulling spindle to move forwards and to stretch out of the forming end of the secondary core pulling sliding block; the core pulling oil cylinder continues to act to drive the secondary core pulling sliding block and the core pulling spindle to synchronously move forwards to reset, by this time, injection molding of a next product can begin. With the adoption method, a mould structure can be simplified, lateral core pulling in two any directions on one side of a product can be adapted, and backward movement of the core pulling spindle and the sliding blocks can be avoided.

The invention discloses an estimation method of parameters of a near-field source based on a rotating interferometer, which mainly solves the problems that in the prior art, for the estimation method of parameters of a near-field source, the needed hardware system is complicated in structure and is high in algorithm complexity. The estimation method is realized by the following steps: 1) defining the array receiving data of the near-field source under the situation that the interferometer rotates; 2, comparing the array receiving data and completing digital integration so as to obtain a phase-difference sequence, and realizing the ambiguity resolution of parameters; 3) utilizing the difference of the maximum value and the minimum value of the phase-difference sequence to obtain the angle of pitch of the near-field source; 4) utilizing the array receiving data which is centrally symmetrical to form two correlation sequences; 5) utilizing the phase of the second correlation sequence to acquire the distance of the near-field source. According to the estimation method disclosed by the invention, the estimation of the three-dimensional parameters of the near-field source is realized by adopting the structure of the rotating interferometer. Compared with the method based on an interferometer with double long base lines, the estimation method disclosed by the invention has higher precision in parameter estimation and higher capability in the ambiguity resolution of parameters, and the estimation method can be used for positioning the target of the near-field source.

The present disclosure includes a number of method, medium, and apparatus claims utilized for color sensor performance. One method includes determining performance of a color sensor, which can be performed by measuring a color parameter intensity and reflectance spectral power distribution of a particular type of print medium with a color sensing utility of a print apparatus. The method also can include detecting a magnitude of a difference between the measured color parameter intensity and reflectance spectral power distribution of the particular type of print medium and a predetermined intensity and reflectance spectral power distribution of the color parameter of the particular type of print medium, where the predetermined intensity and reflectance spectral power distribution is stored in memory.

The invention relates to magnetic steel assembling equipment. The magnetic steel assembling equipment comprises an execution unit, a tool unit, an assembling unit and a detecting-positioning unit, wherein the detecting-positioning unit comprises a magnetic steel detecting-positioning mechanism for detecting position information of the magnetic steel and an iron core detecting-positioning mechanism for detecting position information of an iron core. By adoption of the equipment, quick and high-precision assembling of the magnetic steel can be realized; and in addition, detecting-positioning is performed in assembling of the magnetic steel in each time, so that positioning accuracy is ensured.

The invention discloses a high-accuracy pendulum bob and resistor type inclination measuring device and a high-accuracy pendulum bob and resistor type inclination measuring method for monitoring. Thedevice comprises a power source, an arc-shaped resistor and a pendulum bob. The arc-shaped resistor is arranged fixedly. A fixed point is arranged at the circle center position of the arc. The pendulum bob is connected to the fixed point through a line longer than R, wherein the R is the radius of the corresponding circle of the arc. An electric-conducting contact electrode is arranged on the line. The arc-shaped resistor contacts with the contact electrode electrically when the plane, where the arc is located at, is perpendicular to the horizontal plane. A first electrode and a second electrode are arranged at two ends of the arc-shaped resistor. The power source is connected with the first electrode and the second electrode. Dip angle data can be calculated according to the proportion oftwo resistances of the arc-shaped resistor, requirements on parameter uniformity of resistor elements are low, cost is low, and accordingly, the device and the method are suitable for large-scale production. The high-accuracy pendulum bob and resistor type inclination measuring device and the high-accuracy pendulum bob and resistor type inclination measuring method can be widely applied to the field of engineering detection.

The present invention discloses a hydraulic pressure synchronous drive system based on pressure feedback control, which includes a filter, a variable capacity pump, a over-flow valve, a one way valve, a servo valve, a energy accumulator, a fine filter, a constant rate pump, a three-position four-way electrohydraulic reversal valve, a proportionality over-flow valve, a motor, a pressure sensor, a controller and a pinion wheel connected on the motor in combined action with a gearwheel (big load ). The pressure on two ends of the motor is detected by the pressure sensor at real time, and supplement oil to the system through the pressure feedback control servo valve of motor in and out oil port, realize quick expiation to tiny speed fluctuation in motor quick running process, hence control rotate speed of the motor, form the hydraulic pressure synchronous drive system that can control at real time according to pressure feedback. The pressure feedback control is adopted in the invention, hence manufacturing accuracy of big and small wheel gears and consistency requirement to drive the motor performance are reduced, meanwhile synchronism and stability of drive performance are improved.

A hybrid system for processing papermaking fibers includes a multistage array of forward cleaners coupled with a flotation cell which increases overall efficiency of the system. In a typical embodiment, a first rejects aqueous stream from a first stage bank of centrifugal cleaners is treated in a flotation cell before being fed to a second stage bank of centrifugal cleaners.

The invention provides an improved crimping type IGBT device. The improved crimping type IGBT device comprises a tube, and plate-shaped metal electrodes that are coaxially arranged at the upper and lower ends of the tube; a lug boss is fixed on the inner side face of the lower end metal electrode; IGBT power sub modules are crimped between the lug boss and the upper end metal electrode; each IGBT power sub module comprises a grid electrode signal input end and a gird electrode signal output end; the grid electrode signal input end is electrically connected with a grid electrode PCB that is parallel with the lower end metal electrode; and the grid electrode signal output end is electrically connected with an auxiliary emitting electrode PCB that is parallel with the lower end metal electrode. According to the technical scheme provided by the improved crimping type IGBT device, the stray inductance and stray capacitance of the auxiliary emitting electrode circuit are reduced, the consistency of the parameters of each IGBT power sub module driving circuit of the crimping type IGBT device is improved, and the risk of current oscillation among the IGBT power sub modules is reduced.

The invention provides a high voltage generator which comprises an inverter which comprises a first bridge arm, a second bridge arm, and a third bridge arm between the first bridge arm and the second bridge arm. The first bridge arm and the second bridge arm comprise two switch devices, an anode inverter bridge can be formed by the first bridge arm and the third bridge arm, a cathode inverter bridge can be formed by the second bridge arm and the third bridge arm, the anode inverter bridge adjusts the anode voltage of the high voltage generator, and the cathode inverter bridge adjusts the cathode voltage of the high voltage generator. The high voltage generator also comprises a first control component which is used for controlling the switch device of the anode inverter bridge, the input end of the first control component is connected to the anode of the high voltage generator, and the output end is connected to the first bridge arm. The high voltage generator also comprises a second control component which is used for controlling the switch device of the cathode inverter bridge, the input end of the second control component is connected to the cathode of the high voltage generator, and the output end is connected to the second bridge arm. The cathode and anode of the high voltage generator are controlled individually, and the adaption ability to an unbalanced load is improved. In addition, the invention provides an X ray generation device and a control method thereof.

The present invention relates to an active phase locking multi-core coherent cladding pump high-power optical fiber laser and a preparation method thereof. Active medium is used to manufacture fiber cores; the fiber cores can be arranged according to a certain law or in any mode; the distance among the fiber cores can be long or short under the condition of satisfying synergistic coupling; the quantity of the fiber cores can be great or small according to needs. One end of a multi-core optical fiber is coated with a film, and the other end of the multi-core optical fiber is cut flat; only one of the fiber cores is written into a grating to form a main resonant cavity together with a coating surface, so as to play a role in active resonant phase locking without adding an extra phase locking feedback control system. The optical fiber laser can greatly lower the requirement of passive phase locking multi-core optical fiber lasers on multi-core optical fiber consistency, simplify the requirements of the multi-core optical fiber on fabrication process, and simplify the complex feedback control system of the prior active phase locking optical fiber laser. The optical fiber laser is also characterized in little influence from environment, compact structure, easy implementation, etc.

The invention relates to a method of producing oxidized or microfibrillated cellulose (MFC). According to the invention there is provided an aqueous pulp suspension with a consistency of at least 15%, and at least one oxidant is added to the suspension to oxidize cellulosic hydroxyl groups in the suspension under mechanical mixing or shearing. The oxidized suspension, washed and diluted to a lower consistency, is subjected to homogenization to yield gel-like MFC. Alkali hypochlorite may be used as oxidant, and preferred mediating oxidation catalysts are AZADO and TEMPO. Alkali bromide may be used as a cocatalyst. The MFC product, which as a suspension has an increased viscosity, is suitable as a means of regulating viscosity or for production of films and composites.

Being so called method of Sequential Dual Filter Approach to Smoothing (SDF), the disclosed method is in use for carrying out calculation of smoothed filter for multiple measuring data input in asynchronism in order to obtain optimal estimation for system state. The method is widely applicable to situation: in navigational fixing system, using confluence of observation data obtained from multiple sensors obtains navigational fixing information such as space position, speed and acceleration of object to be measured. Analyzing asynchronous characteristic of input data of system, the invention gives out formula of recursion computation for system to carry out sequential dual filter to obtain optimal estimated value. Especially, the invention describes operation step for executing SDF calculation to obtain navigational positioning solution of the fixing system based on digital videocast signal.