268 results about "Linear distribution" patented technology

Exploiting the substantive reciprocity of internode channel responses through dynamic, adaptive modification of receive and transmit weights, enables locally enabled global optimization of a multipoint, wireless electromagnetic communications network of communication nodes. Each diversity-channel-capable node uses computationally efficient exploitation of pilot tone data and diversity-adaptive signal processing of the weightings and the signal to further convey optimization and channel information which promote local and thereby network-global efficiency. The preferred embodiment performs complex digital signal manipulation that includes a linear combining and linear distribution of the transmit and receive weights, the generation of piloting signals containing origination and destination node information, as well as interference-avoiding pseudorandom delay timing, and both symbol and multitione encoding, to gain the benefit of substantive orthogonality at the physical level without requiring actual substantive orthogonality at the physical level.

Exploiting the substantive reciprocity of internode channel responses through dynamic, adaptive modification of receive and transmit weights, enables locally enabled global optimization of a multipoint, wireless electromagnetic communications network of communication nodes. Each diversity-channel-capable node uses computationally efficient exploitation of pilot tone data and diversity-adaptive signal processing of the weightings and the signal to further convey optimization and channel information which promote local and thereby network-global efficiency. The preferred embodiment performs complex digital signal manipulation that includes a linear combining and linear distribution of the transmit and receive weights, the generation of piloting signals containing origination and destination node information, as well as interference-avoiding pseudorandom delay timing, and both symbol and multitone encoding, to gain the benefit of substantive orthogonality at the physical level without requiring actual substantive orthogonality at the physical level.

A method for capturing a digital panoramic image includes projecting a panorama onto an image sensor by means of a panoramic objective lens. The panoramic objective lens has a distribution function of the image points that is not linear relative to the field angle of the object points of the panorama, such that at least one zone of the image obtained is expanded while at least another zone of the image is compressed. When a panoramic image obtained is then displayed, correcting the non-linearity of the initial image is required and is performed by means of a reciprocal function of the non-linear distribution function of the objective lens or by means of the non-linear distribution function.

The distribution states of defects are analyzed on the basis of the coordinates of defects detected by an inspection apparatus to classify them into a distribution feature category, or any one of repetitive defect, congestion defect, linear distribution defect, ring / lump distribution defect and random defect. In the manufacturing process for semiconductor substrates, defect distribution states are analyzed on the basis of defect data detected by an inspection apparatus, thereby specifying the cause of defect in apparatus or process.

The invention discloses a train communication system and method based on AP (Assess Point) switching. The train communication system comprises a central layer, a trackside layer and a vehicle-mounted layer which are in wireless communication in sequence, wherein the central layer comprises a master wireless controller and an auxiliary wireless controller respectively connected with a server through a backbone network, the trackside layer comprises two or more APs linearly distributed beside a track, and the vehicle-mounted layer communicates with the APs through an STA (single thread apartment). As for the rain communication system and method based on AP switching, firstly, the architecture of a CBTC (communication based train control) system is improved firstly, the wireless controller is introduced on the central control layer of a train, the functional configuration of APs is simplified so that other functional configurations of the APs are transferred upwards and the functions are intensively realized in the wireless controllers; and secondly, a communication channel for the APs and the STA is designed, and the STA can work without searching an appropriate communication channel in the detection stage.

The invention discloses a threaded fastener transverse vibration test device and method. The device comprises a transverse vibration platform, a transmission system, a clamp system, an installation base and a measuring device; one end of the transmission system is fixed to the vibration platform through a bolt, and the other end of the transmission system is fixed to a movable plate in the clamp system; a fixed base of the clamp system is fastened to the installation base through a T-shaped groove; the transmission system is provided with a pull pressure sensor, and the clamp system is provided with a gasket type force sensor. The device and method can simulate high-frequency vibration, achieve electrodeless amplitude modulation, monitor changes of transverse shear force and axial pre-tightening force of a threaded fastener in a vibration process in real time, and test the anti-loose characteristic of single bolts and bolt sets (distributed in a linear, rectangular and circular mode) with different specifications. The device and method provide a basis platform and data support for engineering technicians to analyze anti-loose performance of various threaded fasteners and assess effectiveness of various anti-loose methods.

The invention provides a semi-chromatography gamma scanning method for low-medium radioactive waste barrel measurement. A rotary platform, a detector platform, a detector with a collimator, a transmission source platform, a transmission source, a shielding part of the transmission source and an analysis module are adopted in the method. A waste barrel is divided into multiple section layers in the height direction, the waste barrel is rotated, surface distribution of radioactive point sources on the section layers is changed into linear distribution of ring sources in the radius direction, the detector conducts measurement at different section layer heights and different eccentric positions in the section layers, an equation set reflecting the mutual relation between the detector counting rate and the activity of nuclide in annular grids is established, the equation set is solved, distribution of the activity of the radioactive nuclide in the waste barrel in the diameter direction and the height direction of the barrel is acquired, and the total activity of the radioactive nuclide in the waste barrel is acquired through summation. The method is high in measurement accuracy, short in measurement time and high in practical value and application prospect.

The invention discloses a vortex optical fiber formed by fiber cores on basis of linear refractive index distribution and a preparation method thereof. The vortex optical fiber is formed by fiber cores in linear refractive index distribution in a hot melting and twisting mode, and the refractive indexes of the fiber cores of the optical fiber are in linear distribution in the transverse direction and are in helical curve distribution in the longitudinal direction. Because of refractive index distribution, conduction optical waves can form radial phase differences, optical waves transmitted in the optical fiber can obtain orbital angular momentum, meanwhile vortex transmission is formed on light intensity and phase positions, and a vortex-like optical transmission mode is formed. The whole optical fiber has the advantages of being tiny in structure, flexible in operation, stable in system, high in antijamming capability and the like, and can be used for light beam generation, particle control, sensing application and other aspects.

The invention, an improved device and method for the pointer system of a digitizer tablet, is to repetitiously emit signals sequentially from a specific set of inductive loop when the position pointed by the wireless pointer device is located within a range formed by this specific set of inductive loop induced most intensively during a locally scanning process. After a transient energy storage of the wireless pointer device, corresponding resonant signals are emitted out and are received sequentially by several sets of inductive loop located on the digitizer tablet in the neighborhood of this specific set of inductive loop and, by these signals, the wireless pointer device's coordinate position on the digitizer tablet is calculated out relatively. Thereby, the intensities of the resonant signals received by these several sets of inductive loop will be displayed as a linear distribution, such that the calculation formula for coordinate position and the design for relative circuit elements may be simplified greatly, and the production cost and the power consumption may further be lowered down effectively.

The invention provides a monitoring method for a surrounding rock and full face tunnel boring machine shield interaction process. The method comprises the steps of: A, welding and installing pressure boxes to the outer surface of a shield for testing the extrusion force applied to the shield by surrounding rocks directly, placing cables of the pressure boxes in flexible cable-protecting casing pipes, and leading the cables into the shield and connecting the cables to a reading device; B, installing a surface strain sensor in each of the annular direction and the longitudinal direction of each monitoring point on the inner surface of the shield, and inversely calculating the extrusion force applied to the shield by the surrounding rocks according to the principle of elastic mechanics based on the tested annular and longitudinal strains of the inner surface of the shield; C, according to the acquired distribution rules of the extrusion force applied to the shield by the surrounding rocks, calculating the friction force borne by the shield on the premise of linear distribution of the extrusion force between two adjacent measuring points; D, according to the jamming state judging criteria and jamming risk coefficient calculation method, calculating whether the shield is jammed and giving early warning of a jamming risk level. The method solves the problem in monitoring of surrounding rock and shield interaction in a shield type TMB tunneling process, provides basis for the predictive analysis of jamming accidents and is of great importance for the safety of TBM tunneling.

The distribution states of defects are analyzed on the basis of the coordinates of defects detected by an inspection apparatus to classify them into a distribution feature category, or any one of repetitive defect, congestion defect, linear distribution defect, ring / lump distribution defect and random defect. In the manufacturing process for semiconductor substrates, defect distribution states are analyzed on the basis of defect data detected by an inspection apparatus, thereby specifying the cause of defect in apparatus or process.

The invention provides a CCD camera nonlinearity degree calibration method based on a structured light three-dimensional measurement system. The method comprises the steps that according to the measurement processes of the structured light three-dimensional measurement system, on the basis that a series of standard images which are projected by a projector and accord with linear distribution are collected, a standard image gray scale-camera collected image gray scale distribution curve is drawn after certain data processing so as to further calculate the nonlinearity degree of a CCD camera; because gray scale gradient is small when the standard images are grouped, and the number of images collected by the CCD camera is large, random errors are reduced, and nonlinearity degree measurement precision is improved; the CCD camera nonlinearity degree calibration method based on the structured light three-dimensional measurement system accords with conditions of the structured light three-dimensional measurement system, and is simple in calibration process, less in middle link, and accurate in nonlinearity degree calibration result.

The invention provides a method for suppressing active circulation with parallel three-phase inverters. The method for suppressing the active circulation with the parallel three-phase inverters comprises the following steps: sending the time variable Tu0Ns which represents the control action of each module zero sequence voltage in a three-phase inverter parallel system to a digital CAN communication bus, wherein any one inverter module can receive the components Tu0Ns of other inverter modules; completing average value calculation on the component in each control system by the three-phase inverters; taking the difference between the average value calculation and the time variable Tu0N of the self control action of the zero sequence voltage as a feedforward compensation amount of a zero sequence current control loop of the inverter module; combining output of a zero sequence current control channel with non-zero voltage vector acting time obtained by modulation and output of the SVPWM when dq axis decoupling control is adopted by the parallel system; and adjusting the zero voltage vector acting time according to a linear distribution mechanism, and obtaining on-off control signals of each bridge arm power device of a single three-phase inverter. The method for suppressing the active circulation with the parallel three-phase inverters improves current balance controlling ability of each parallel inverting module under the condition that extra hardware cost, size and weight are not increased.

The invention belongs to the technical field of fluid measurement, and relates to an internal and external composite array sensor for detecting a process parameter of fluid in a pipeline. The internal and external composite array sensor comprises an external electrode array and an internal electrode array, wherein external electrodes are fixed on the inner wall of the pipeline in a circumferential distribution manner; internal electrode are fixed on a supporting rod transversely passing through the internal part of the pipeline in a linear distribution manner; the supporting rod is made of a non-conductive material; and two ends of the supporting rod are fixed on the pipeline. The internal and external composite array sensor has the advantages of acquiring projections of distribution information of substances in the pipeline at more positions, improving the intensity and the uniformity of a sensitive field and increasing the information content of a fluid measurement system.

The invention provides a design method for an axial flow impeller machine for confirming the flow model of the axial flow impeller machine. The method at least includes the circle component of vu2 and axial plane speed of vm2 which are at the exit of a vane and are distributed in a way of linearity along the radius of the vane, and the circle component and axial plane at the hub side is small while the circle component and axial plane at the wheel edge side is larger; the distribution functions of the circle component vu2 and axial plane speed vm2 at the exit of the vane are confirmed according to the external characteristic parameters and structure parameters as well as the flow model of the axial flow impeller machine; the axial flow impeller machine is designed according to the confirmed distribution functions of the circle component vu2 and axial plane speed vm2 at the exit of the vane. The invention also provides the vane of the designed axial flow impeller machine; wherein, the difference of the mounting angles for the wing models of the hub side and wheel edge side of the vane Delta Beta is equal to Beta h minus Beta s and is between minus 3 degrees to 10 degrees. The equipressure area at the back of the vane is distributed along the radial direction of the vane in strip. The invention can improve the efficiency of the impeller machine to reach 91 percent and improve the anti-cavitation erosion capacity.

The invention discloses a surface-plasmon-polariton spectral absorption device based on a periodic chirp structure. The surface-plasmon-polariton spectral absorption device comprises a substrate, a first metal layer and a plurality of gratings, wherein the first metal layer is positioned on the substrate; the plurality of gratings are positioned on the first metal layer; each grating comprises an insulator body positioned on the first metal layer and a second metal layer positioned on the insulator body; and the gratings are in linear chrip at least along the X direction or Z direction or along the two directions simultaneously. The surface-plasmon-polariton spectral absorption device disclosed by the invention has the advantages that since the period of the gratings adopts the linear chrip, the resonant wavelength is in linear distribution and covers larger spectral range, and the bandwidth of the whole forbidden band is realized and widened by properly adjusting a chrip coefficient of the gratings and a resonant cavity formed by an upper metal layer / insulator layer / lower metal layer, so that the possibility for realizing a low and flat reflecting forbidden belt is realized; and under the limiting condition of phase matching and sub-wavelength size, nearly-perfect absorption of the bandwidth can be realized by proper design.

The invention discloses an object absorbing device. The object absorbing device comprises a shell with the cross section being circular, a cavity with the cross section being circular is formed in the shell, and the cavity is provided with a closed end face and an opened end face. The opened end face forms an end face for absorbing an object, the closed end face is provided with a motor, and fan blades arranged inside the cavity are connected with an output shaft of the motor. The object absorbing device is characterized in that the closed end face is in an airtight state, and the fan blades are in linear distribution along the axis of the cavity. In the working process, the shell on the circumference of the opened end face can apply absorption force on the object under the condition that the shell makes contact with or does not make contact with the object. The object absorbing device can be widely applied to absorbing and grasping objects, is suitable for the objects with large surface roughness and can also be adaptive to the object tilting condition, and the advantage of being small in energy consumption is achieved as well.

A processing chain for a digital image signal (12) applies a dither pattern (14), having a first spectrum, to the image signal at a point in the processing chain. A further noise pattern (10) is applied to the image signal during the processing chain. The noise pattern (10) has a second spectrum which is configured such that the combination of the first spectrum and second spectrum results in a more continuous spectrum. Another aspect describes a noise pattern (10) which can be used as an offset dither pattern for digital images, especially before colour bit depth reduction. The noise pattern comprises an array of values which are linearly distributed across a range, with each value in the range occurring an equal number of times. Similar values at extreme ends of the range of values are dispersed within the array. The pattern has a Poisson-disk two-dimensional spectral energy distribution. Values are positioned in the array based on distance to similar values in neighbouring repetitions of the array. The array has “magic square” properties.

A number of identical non-uniformly distributed ultra-wideband power amplifier string building blocks are coupled together to form an ultra-wide bandwidth high-power amplifier. The non-uniform distribution results in an amplifier utilizing modular string building blocks that have input and output impedances with only real values. This permits the strings to be replicated and connected together with simple impedance matching. The internal impedance matching associated with the non-linear distribution also absorbs parasitic capacitance to permit the ultra-broadband operation. In one embodiment identical transistors are used for each cell so that the strings may be identically replicated. This permits modular re-use without reconfiguration. In one embodiment a non-uniform distributed power amplifier built using the subject building blocks provides an ultra-wideband multi-octave device suitable for electronic warfare and communications applications, especially to replace traveling wave tubes.

The invention discloses a logistics delivery route optimizing generation method and system. The logistics delivery route optimizing generation method comprises the following steps: firstly, obtaining and combining client information in distribution areas to form distribution districts; then, selecting the district which takes the longest distribution working time from a logistics center as a calculation source point according to delivery car capacity; accumulating client delivery capacity according to client linear distribution serial numbers in the district or a next delivery district which takes the shortest working time from the source point until the delivery car capacity is satisfied; and finally, finishing a total delivery amount, and outputting the selected client linear distribution serial numbers as an optimal delivery route. A proper delivery path is calculated by adopting a reverse recursion Dijkstra algorithm, the district is used as a basic calculation unit, a distribution network is simplified, a network calculation amount is greatly lowered, information acquisition difficulties and information acquisition time are greatly lowered and shortened respectively, the amount and the dispatch frequency of the delivery cars are reduced, operation cost is lowered, and distribution efficiency is improved.

The invention pertains to the technical field of a polymer Li-ion battery, in particular to a polymer Li-ion battery separator, comprising porous substrate, wherein at least one surface of the porous substrate is coated with an inorganic coating and an organic coating; the organic coating, shaped like an island and / or linear distribution, is coated on the surface of the porous substrate and / or the inorganic matter coating.

A high speed, low cost, apparatus and method of identification, examination of objects and quality control of manufactured parts and sheet materials, the apparatus including a comparator having memory storage of data representative of the surface of a first “standard” spatial linear distribution of light and memory storage of data representative of another portion of the surface, and including an algorithm for comparing data of the standard with data representative of the second spatial linear distribution of light reflected from a surface to determine if there is a correlation between the two spatial distributions.

The invention discloses a method and a system for large-scale integrated circuit channel wiring based on parallel computation, and belongs to the field of integrated circuit design. The method comprises the steps as follows: dividing channel wiring problems on different layers into channel wiring sub-problems in each routing unit row, and abstracting the channel wiring sub-problems into a series of linear distribution problems in the routing units for computing; based on a distributed computation framework, carrying out multi-thread parallel processing on the channel wiring sub-problems to be solved; and optimizing the targets through the minimize distribution expense in the linear distribution problems in the routing units by modeling congestion degree, time delay and crosstalk parameters. According to the invention, the ultra-large-scale integrated circuit channel wiring problem can be quickly and effectively processed, and the interconnection crosstalk problem of process nodes with interconnection line width of 65 nm and below can be solved at the same time.

The invention discloses an automatic soldering device, comprising a support; a vibration disc, a transmission device, a skinning device, a tangent line device, a tin feeding device, a welding device and a control system mutually connected with all devices are arranged on the support; a guide groove for conveying a terminal is arranged on the vibration disc; the automatic soldering device also comprises an automatic infrared feeding sensing device. A corresponding horizontal moving cylinder of at least one group of a lower pressure plate and a straightening rear-pulling cylinder of a strengthening device, a lower skinning cutter and a skinning rear-pulling cylinder of the skinning device and a lower cutting port and a horizontal tangent line moving cylinder of the tangent line device is in linear distribution with the position of the pressure plate or a cutter edge. A welding assembly produced by adopting the automatic soldering device is high in size precision, improved in welding efficiency and excellent in welding quality.

The invention provides a radar data association method based on a simplified multi-hypothesis algorithm. In view of problems of combination explosion and calculation amount exponential rising caused by a delay decision making mechanism of the traditional multi-hypothesis algorithm in a multi-target tracking system, a likelihood ratio scoring function and a linear distribution (LAP) pruning method are introduced, a track association logarithm likelihood ratio is used for simplifying hypothesis association probability calculation, M optimal hypothesis at the current moment is obtained through LAP algorithm track level pruning, through further global level hypothesis pruning, an optimal hypothesis matching sequence is obtained quickly as an effective association measurement point, and the purpose of reducing the calculation amount finally is realized. The method particularly comprises three main steps of track scoring calculation based on the likelihood ratio function, LAP-based track level M-optimal hypothesis pruning and LAP-based global level optimal hypothesis generation. By using the method provided by the invention, on the basis of ensuring the association accuracy, the calculation amount during a multiple hypothesis algorithm data association process can be reduced to a large degree.

The invention discloses an automobile air-conditioner control system. The automobile air-conditioner control system is used through a method comprising the following steps of receiving or acquiring signals, wherein the signals comprise a temperature air door opening degree signal; according to the received or acquired signals, judging whether a first heater is in the working region of the first heater or not; and if yes, controlling the first heater to heat air in a wind channel according to a preset power, wherein the preset power of the first heater is adapted to the temperature air door opening degree corresponding to a temperature knob. In addition, the invention also discloses a corresponding air-conditioner control device and an air-conditioner control method. According to the automobile air-conditioner control system disclosed by the invention, the wind temperature of a wind outlet in a preset region along with the changes of positions of a wind door and the changes of a gear tends to linear distribution, so that the comfortableness of a user is improved.

The present invention discloses a simple and easy dynamic distribution path optimization method. The method comprises the following steps: collecting demand orders through a network; performing analysis arrangement of the demands through a calculation method; according a current article category library, calculating the sizes and the weights of articles required by each demand department; inputting coordinates of demand destination onto an electronic map; establishing a distribution model, and performing dynamic regulation; calculating distribution line sequence numbers according to the optimization algorithm in areas, and employing linear distribution; and completing distribution amount, and outputting selected distribution line sequence numbers as optimized distribution paths; and displaying the output optimized distribution paths on the electronic map. The simple and easy dynamic distribution path optimization method is employed to complete the whole logistics transportation and distribution so as to improve the work efficiency of the logistics distribution work, reasonably arrange the vehicle distribution paths, realize reasonable line transportation, save the transportation time, increase the vehicle utilization rate and improve the enterprise competitiveness.

The invention provides a calculation method of soil engineering grid tensile force inside multilayer ribbed cushion layer; the method comprises the following steps: firstly judging a pile net composite foundation plane layout parameter, then determining equivalent linear distribution loads at a ribbed cushion layer surface, and the like; determining a cross section parameter of a ribbed cushion layer equivalent composite plate structure; and then based on an elastic grade beam analyzing method, determining a ribbed cushion layer deformation equation and an internal force equation from a deformation coordinate boundary condition; based on the ribbed cushion layer deformation equation and the internal force equation, calculating a soil engineering grid tensile force caused by the deformation when the embankment filled earth subsides; based on an internal force balance equation under an embankment filled earth transverse slide threshold status, calculating the soil engineering grid tensile force caused by the embankment transverse slide; and finally, superposing the soil engineering grid tensile forces caused by the embankment filled earth subside deformation and the transverse slide, thereby obtaining the needed soil engineering grid tensile force parameter. In condition that multiple layers of soil engineering grids are laid on the top cushion layer of the pile net composite foundation piles, the calculation method is able to precisely calculate the tensile force parameter of each layer of soil engineering grid inside the cushion layer.

A power converter design is disclosed with a novel approach to thermal management which enhances the performance and significantly reduces the cost of the converter compared to prior art power converters. The invention minimizes the heating of one power component by another within the power converter and therefore enables the power converter to work at higher power levels. Essentially, the power converter uses a heatsink having a high length to width ratio, a linear array of power components thermally coupled to the heatsink parallel to the long axis of the heatsink and a heat removal system which produces the highest cross sectional thermal flux perpendicular to said long axis. In addition, a number of ancillary thermal management techniques are used to significantly enhance the value of this basic approach. A specific circuit design for the power converter is not disclosed or discussed as the invention can be applied to any number of power converter electrical topologies. What is addressed is the specific thermal management of the three primary component groups found in any power converter; semiconductor devices, magnetic components and capacitors. The invention uses specific geometries and power component arrangements as well as strategic use of advanced thermal materials.