71results about How to "Improve distribution accuracy" patented technology

The invention discloses a gray level release method, a gateway interceptor and a computer readable storage medium. The method comprises the following steps: receiving a client request, and analyzing client information from a request header of the request; judging whether the client information satisfies a distribution rule, wherein the distribution rule is allocated in the gateway interceptor in advance; if the client information does not satisfy the distribution rule, distributing the request to a first application server corresponding to an original version application; and if the client information satisfies the distribution rule, distributing the request to a second application server corresponding to an updating version application. By adoption of the gray level release method disclosed by the invention, the implementation flow is simple, and the hardware resources occupied by realizing gray level release are effectively reduced; and the gray level release method disclosed by the invention is high in distribution precision and is able to accurately locate the distributed user groups.

The invention relates to a precision plunger metering pump, comprising three parts, including a driving mechanism, a sealing mechanism and a pump head, wherein by utilizing a photoelectric encoder, the driving mechanism accurately controls the movement of a stepper motor, thereby effectively preventing the error of pump output caused by the falling out of step or the idling of the motor from being generated; a sealing ring in the sealing mechanism is matched with a plunger piston to realize precision fit, and the sealing ring based on a stainless steel spring enclasping mechanism solves the problems of low enclasping force and easy aging of a traditional rubber ring and prolongs the service life; the pump head has the design of water washable airtight cabin, realizes the washing and sealing functions of the plunger piston and the sealing ring and prolongs the sealing life; the technic level of processing the plunger piston and slab rubber achieves the purpose that a miniature precision plunger metering pump can provide 20MPa pressure intensity; and the slab rubber has good polishing performance, extremely high transparency, compact structure, small volume and delicate appearance. The precision plunger metering pump can be applied to the precise metering of fluid in the fields of medication, sanitation, biology and chemistry.

The invention discloses a dimension chain tolerance distribution method based on the orthogonal test principle, which achieves the aim of improving distribution accuracy. The method includes the following steps: obtaining basic information of dimension chain composition rings, basic value of closed rings and an expression of the closed rings according to an assembly body or a part design picture,selecting a corresponding orthogonal table according the number of the composition ring, solving flexibility of each composition ring according to the expression of the closed rings, constructing a composition ring deviation collection LU corresponding to the largest limit value condition of the closed rings and a composition ring deviation collection LD corresponding to the smallest limit value condition of the closed rings, respectively optimizing and distributing the composition ring deviation collections LU and LD and outputting results.

The invention discloses a power distribution method of a low-voltage alternating-current microgrid. The method comprises the steps of based on the traditional droop control, establishing a micro-gridstructure comprising a plurality of distributed power supplies connected in parallel; introducing an improved particle swarm algorithm, and dynamically adjusting a droop coefficient in a droop controller, so that the real-time optimization of the traditional droop control is realized, further each distributed power supply in the microgrid can reasonably output the active power and the reactive power according to the own capacity, the active and reactive power distribution precision can be effectively improved, meanwhile, the stability of voltage and frequency is kept under different working conditions, and the dynamic performance and transient stability of the microgrid are effectively improved. The method has the advantages of being scientific and reasonable, being high in applicabilityand accurate in control and the like.

The invention relates to a water body extraction method based on pixel-level SAR (synthetic aperture radar) image time sequence similarity analysis. The method comprises the following steps of firstly, preprocessing an SAR image data set, establishing a pixel-level SAR image time sequence through high-precision matching, and generating time sequence text data; secondly, sampling and selecting time sequences of purified water body pixels and mixed water body pixels, selecting DTW (dynamic time warping) as similarity measurement of the time sequences, and calculating a DTW value as a maximum threshold; then, calculating the DTW values of the pixel-level SAR image time sequence of all the pixels and the purified water body pixel time sequence, and segmenting an SAR image by a maximum threshold method, thus acquiring a binary image; and finally, operating the binary image so as to improve the water body identification precision by a 8-neighborhood search method. According to the method, a stable water resource distribution range can be accurately extracted, the extraction result is not influenced by hillshade, ponding in rainy season and partial vegetation, and the requirement of water body drawing can be met.

The invention relates to the fields of judicial experts and natural language processing, and particularly relates to an intelligent dispatching method and system for mediation cases based on feature extraction. The method comprises the steps of obtaining mediation case classification conditions and feature words, comparing feature word similarity of a to-be-assigned mediation case and each mediator mediation case under the same case type, and in combination with current workload and service rating of each mediator, sorting the mediators and assigning the mediation cases. The system comprises adata acquisition module, a text classification module, an intelligent distribution module, a mediator portrait module, a case input module, a case analysis module and a data storage module. The method and the system have the characteristic of high assignment accuracy, the mediation satisfaction can be improved, the mediation efficiency and the service quality can be improved, dispute checking canbe performed, the mediation resources can be optimized, and the working efficiency can be improved.

The invention discloses an SOC optimal dropping factor control method applied to a distributed energy storage system. The SOC optimal dropping factor control method comprises the following steps: step one, constructing an SOC optimal dropping factor; step two, describing a control system into a voltage source type converter according to the topological structure of a distributed energy storage converter; step three, comparing the product of the dropping factor and output port current idc with output end reference voltage udc, and forming new dropping control reference voltage u*dc; step four, designing a voltage and current adjuster, so that the phase margin and amplitude margin of the voltage and current adjuster are large enough; and step five, adding secondary control to compensate busbar voltage dropping, so that the whole system has relatively high dynamic response and relatively small steady-state error. The load can be effectively distributed according to surplus capacities of a storage battery and a supercapacitor through the SOC optimal dropping factor concluded through simulation and experiments, so that SOC quickly trends to be coincident, and the load trends to be equal. The SOC and port voltage information are shared through an interconnecting wire, and the method is used for dropping factor self-adaptive adjustment and busbar voltage recovery.

The invention provides a dynamic bandwidth allocation method for the Ethernet passive optical network. The method is used for allocating uplink bandwidth of all optical network units in the Ethernet passive optical network. According to the method, parallel running of a token allocation thread and a bandwidth allocation thread is performed through an optical line terminal, the token allocation thread ensures a high token allocation finishing rate through iteration allocation, and the sum of the lengths of time slots corresponding to allocated tokens in each allocation period is adaptive to the time length of the corresponding allocation period; meanwhile, the bandwidth allocation thread allocates the bandwidth in a self-adaptive mode with a dynamic bandwidth allocation period by consuming the tokens to ensure high bandwidth allocation efficiency, and moreover the efficient token allocation process and the efficient bandwidth allocation process can be carried out continuously in an asynchronous mode in the environment of parallel running of the token allocation thread and the bandwidth allocation thread, so that bandwidth allocation precision is improved, the bandwidth use ratio is promoted, data transmission delay of the Ethernet passive optical network is reduced, and moreover processing logic is simpler and easier to achieve.

The invention relates to an automatic mashing machine used in printing, comprising a frame, a pregnant liquor storage tank and further comprising a filter, a pump, distribution heads, a weighing device and a control circuit. The pregnant liquor storage tank and the pump are installed on the frame. At least one group of distribution heads is installed on a turnplate, and the distribution heads are connected with a driving device. The distribution heads are connected with the pregnant liquor storage tank through a pipeline which is connected with the pump and the filter. The turnplate is connected with the frame through a bearing and the turnplate is also connected with the driving device.

A distribution system for cigarette distributing center is composed of cigarette conveying unit, shelf unit with goods inducator, supply button and digital display module for each shelf, and computercontrol unit consisting of microcomputer, I / O module and digital display driver module. The cigarette brands on lading bill are decomposed to relative shelves by said computer control unit. If some brand is absent on its shelf, its absent button is pressed by worker to inform the storage manager and the brand of cigarettes is conveyed from storage to the shelf while its absent indicator is turnedoff. Its advantages are high productivity and correctness, and saving labour.

The invention provides a hybrid deployment method, device and equipment for multiple types of services and a storage medium, relates to the technical field of cloud deployment, and can improve the distribution precision of the resource quantity and the kernel isolation precision during hybrid deployment of the multiple types of services. The method comprises the steps of responding to a task deployment instruction; determining a second resource quantity required to be deployed for operating each preset type of service in a uniform resource scheduling layer; respectively comparing each second resource quantity with a resource quantity corresponding to a predetermined virtual machine of each configuration level, and determining a target virtual machine of each preset type of service; deploying each preset type of service to the respective corresponding target virtual machine; and limiting each target virtual machine to only run the respective corresponding preset type of service in a kernel isolation layer of each target virtual machine according to a preset resource threshold of each target virtual machine.

The invention relates to a parallel multi-energy-storage state-of-charge balance control method for an island direct-current microgrid. On the basis of a traditional droop control method, by introducing a sampling holder and improving the droop control method, when a power distribution error exists in a system and the state of charge does not reach a balance state, a droop coefficient is continuously and adaptively modified in each sampling period, the deviation of the state of charge is reduced, and finally, the state of charge balance between energy storage units is realized. Compared with the prior art, the method disclosed in the invention has the advantages of avoiding excessive discharge, giving full play to the use efficiency, prolonging the service life and the like.

The invention discloses an island microgrid adaptive droop control method based on an improved particle swarm algorithm. According to the influence of the microgrid structure and the microgrid line parameters on a traditional droop control algorithm, a fuzzy rule algorithm is introduced into a basic particle swarm algorithm so as to dynamically adjust learning factors and inertia weights of the particle swarm algorithm, and an improved particle swarm algorithm is obtained; a frequency droop coefficient and a voltage droop coefficient in a microgrid droop control algorithm are optimized according to the improved particle swarm algorithm to obtain a reference voltage and a reference current; an inverter control signal is generated from the reference voltage and the reference current; the inverter control signal is input into the inverter of the microgrid to control the distribution of the active power and the reactive power of the inverter, so that the distribution precision of the active power and the reactive power is effectively improved, and the dynamic performance and the stability of the microgrid are improved.

A transport carrier (1) for precise-positioned supply of small parts (12) which can only be sorted with difficulty, especially plastic parts, characterized in that a flat transport strip (2) is provided with stamped receiving and fixing openings (3) for receiving positioning and jointing aids (4) arranged on said small parts (12). The invention also relates to a method for supplying small parts which can only be sorted with difficulty, especially small plastic parts, to a placement station, comprising the following steps: provision of positioning and jointing aids (4) which are connected to one or several small parts (12); securing the positioning and jointing aids (4) in the receiving and fixing openings (3) of a transport strip (2) by jointing or cold deformation; transferring the small parts (12) to the placement station via the transport carrier (1); precise-positioned removal of the small parts (12) from the receiving and fixing openings (3); and returning the transport carrier (1) to the supply circuit. The invention provides a reusable transport carrier for precise-positioned supply of small parts which can only be sorted with difficulty, enabling corresponding reductions to be made in the transport carrier and tool costs. The invention also enables the carrier strip to be fitted with interchangeable mould bars outside an injection moulding machine, thereby enabling waste parts to be sorted before despatching.

An automatic aluminum liquid dispensing device used on a for an aluminum ingot continuous castcontinuous casting production line for aluminum ingots is characterized in that when the aluminum ingot continuous castcontinuous casting production line for aluminum ingots begins production, a systematic PLC (programmable logic controller) control cylinder (25) acts to push up a ship type casting ladle (28), and simultaneously, a conveying chain (4) of a casting machine conveying system acts to drive a chain wheel (10) and a wheel type distributor (30) to rotate; an aluminum liquid (1) flowing out of a holding furnace (29) enters the ship type casting ladle (28) through a chute (2), then flows into the wheel type distributor (30); the aluminum liquid is uniformly distributed in a casting mould (23) of the casting machine conveying system of the aluminum ingot continuous castcontinuous casting production line for aluminum ingots through 12 aluminum casting ports (7) uniformly formed in the wheel type distributor (30), and the automatic dispensing of the aluminum liquid is completed; and the chain wheel (10) rotates by two teeth with the conveying chain (4), the wheel type distributor (30) rotates one aluminum casting port (7), and casting of one aluminum ingot is completed.

The invention relates to a magnetically-excited magnetic-conductive high-viscosity glue trace-distribution device and method. The device comprises a dispensing mechanism and a moving platform used for driving the dispensing mechanism to work, the dispensing mechanism comprises a dispensing head and an electromagnetic coil, the dispensing mechanism is provided with a control module, the control module is used for adjusting the magnetic excitation intensity of the dispensing mechanism, the control module is provided with an industrial personal computer, and the control module is connected with a micro-vision unit. The method comprises the following steps: setting a program through the industrial personal computer to adjust the magnetic excitation intensity, enabling the magnetic excitation intensity to correspond to the trace of magnetic-conductive high-viscosity glue loaded by the glue dispensing mechanism, completing quantitative loading of the magnetic-conductive high-viscosity glue, setting the program through the industrial personal computer, achieving trace correspondence of the magnetic-conductive high-viscosity glue transferred by the glue dispensing mechanism according to a detection value of a pressure sensor, and completing quantitative transfer of the magnetic-conductive high-viscosity glue. The magnetic-conductive high-viscosity glue is loaded and transferred in a magnetic excitation mode, and the trace-distribution operation of the magnetic-conductive high-viscosity glue is completed by combining the image information of the micro-vision unit and utilizing the industrial personal computer to carry out precise control.

A distribution confirming system for cigarette distributing center is composed of conveying unit, brand recognizing unit, quantity recognizing unit, warning unit, quantity display unit, and computer control unit consisting of microcomputer, I / o module and digital display driver module. Before the cigarettes are taken from shelf and put on conveying unit, their bar codes for sorting are read out and then sent to computer where their quantities are subtracted from their totals. The quantity to be cigarettes and put them on the conveying unit. Its advantages are high productivity and correctness, and saving labour.

The invention provides a description method and device for remaining oil / gas distribution. The reserve abundance of remaining oil / gas or remaining movable oil / gas is comprehensively calculated throughrelevant parameters of the remaining oil / gas, and the plane distribution of the remaining oil / gas can be intuitively described. The method has the advantages that the simplicity and the practicability are achieved, the calculation amount is small, the description efficiency of the oil / gas is improved, the problem that the description of the remaining oil is not accurate enough due to the fact that when the distribution of the remaining oil / gas is calculated, oil or gas saturation factors are only considered, and factors such as effective thickness and porosity are not considered is avoided,and the description accuracy of the calculated remaining oil / gas distribution is high through the method.

The invention relates to the field of population spatial distribution, and discloses a multi-agent-based urban population spatial distribution estimation method and device. The method comprises the steps of acquiring input public service facility environment factors around multiple buildings in a research area influencing urban multi-agent population spatial distribution; establishing an urban multi-agent population spatial distribution estimation model; calculating and comparing the comprehensive attraction of all the buildings in the multi-agent search range and the comprehensive attractionof the building where the multi-agent is located currently according to the model; judging whether the multi-agent moves to any building in a search range or not, ending operation and outputting an operation result when a preset model operation termination condition is met, otherwise, returning to the model to continue to calculate; outputting results. According to the invention, the urban population spatial distribution estimation model is established according to the environmental factors of the public service facilities around the building influencing living selection, and a population spatial distribution result that are more consistent with actual conditions in life can be obtained.

An apparatus for dispensing a flowable material is disclosed. The apparatus (100) comprises a rotary actuator (120), a reservoir (140), containing a hydraulic fluid (155), a piston (145), movable inside the reservoir (140), a linear actuator (130), coupled to the piston (145), a gear train (125), coupling the rotary actuator (120) with the linear actuator (130), and a flowable-material dispenser (160), hydraulically coupled with the reservoir (140).

The invention relates to the technical field of gas detectors, in particular to a wide concentration range standard gas distributor with a correction function and a correction method of the standard gas distributor. The provided wide concentration range standard gas distributor comprises a carrier gas pathway, a first diluent gas pathway and a second diluent gas pathway; the carrier gas pathway and the first diluent gas pathway are connected in parallel with a first mixing chamber, a first outlet of the first mixing chamber is connected with an exhaust port, a second outlet and the second diluent gas pathway are connected in parallel with a second mixing chamber, and the second mixing chamber is connected with a standard gas outlet; the second diluent gas pathway is provided with a first flow path control valve and a second flow controller, and a third flow controller and a second flow path control valve are arranged at the first outlet of the first mixing chamber; the second flow path control valve is connected with the first flow path control valve. The wide concentration range standard gas distributor is simple in structure and the range of concentrations of the prepared standard gas is wide; during correction, the gas path where correction is performed continues to be involved in following correction, the correction structure flow path is simplified, and the gas distribution accuracy is high.

The invention discloses a fluid distributor which comprises an inlet end plate, an outlet end plate, a runner cover plate, a runner trough plate, an inlet joint and an outlet joint, wherein an inlet joint hole is formed in the inlet end plate, and the inlet joint is arranged in the inlet joint hole; an outlet joint hole is formed in the outlet end plate, and the outlet joint is arranged in the outlet joint hole; an inlet hole and a first flow equalizing trough are formed in the runner cover plate,, and a runner trough, a second flow equalizing trough, a flow dividing structure and an outlet hole are formed in the runner trough plate; the inlet end plate, the runner cover plate, the runner trough plate and the outlet end plate are sequentially and fixedly connected to from a runner trough cavity and a flow equalizing trough cavity. The fluid distributor has the advantages of simple structure and good convenience in installation and realizes primary distribution through the one sub-two and two sub-four runner trough. After being aggregated to the flow equalizing troughs, fluid passes through a flow dividing trough to generate great resistance drop. Equal distribution for the fluid is realized, and the precision is larger than 1 percent.

The invention discloses a connecting traverse measurement distance error accurate distributing method. The connecting traverse measurement distance error accurate distributing method comprises the following steps: calculating a vertical coordinate increment correction number V Delta xi and a horizontal coordinate increment correction number V Delta yi of each traverse point according to a coefficient; distributing to obtain each corrected vertical coordinate increment Delta Xi= Delta xi+ V Delta xi, and horizontal coordinate increment Delta Xi= Delta yi+ V Delta yi; then, solving the coordinates of each traverse point according to coordinates of a point B and each corrected vertical coordinate increment and horizontal coordinate increment. The connecting traverse measurement distance error accurate distributing method takes traverse error offset and azimuth angles into consideration comprehensively; the distributing precision is higher than that of a conventional simple error distributing method.

This intake device for an internal combustion engine is provided with: an intake device body including a plurality of intake pipes respectively connected to the cylinders of an internal combustion engine having cylinders numbering a multiple of three; and an outside gas distribution part for distributing an outside gas respectively to the plurality of intake pipes. The outside gas distribution part includes one first outside gas distribution pipe connected to an outside gas supply, second outside gas distribution pipes branching into multiple branches from the first outside gas distribution pipe, an outside gas collecting path for collecting outside gas from the plurality of second outside gas distribution pipes, and third outside gas distribution pipes branching into three branches from the outside gas collecting path, the third outside gas distribution pipes being respectively connected to the intake pipes.

The invention discloses a user resource allocation method and device, and the method comprises the steps: obtaining the information of a target user, and obtaining the information of an alternative entity object; obtaining a user resource feature vector according to the information of the target user and the information of the alternative entity object; inputting the user resource feature vector into a user resource matching model to obtain matching relationship information between the target user and the alternative entity object output by the user resource matching model; and performing userresource allocation according to the matching relationship information. By using the method, the distribution accuracy of the user resources can be improved, and the waste of the user resources is reduced.

The invention discloses a direct-current microgrid control processing method and device. The method comprises the steps that a droop curve adopted for droop control over the direct-current microgrid is acquired; and the droop curve is adjusted, and the adjustment of the droop curve comprises a hybrid compensation adjustment mode of translating the droop curve and adjusting the slope of the curve at the same time. According to the application, the problem that a fixed droop coefficient control mode adopted in related technologies cannot meet technical requirements is solved.

An intake system (100) for an internal combustion engine includes a throttle-side intake tube (1), an external gas introducing port (11) introducing an external gas into at least one of the throttle-side intake tube (1) and a surge tank (2), and a plate portion (40) provided inside the mentioned at least one of the throttle-side intake tube (1) and the surge tank (2) being in communication with the external gas introducing port (11) and in a region on an axis line (AL) of the external gas introducing port (11) at a center portion of a fluid path cross-section having a distance from a vicinity of an outer periphery portion of the fluid path cross-section, the plate portion (40) restraining the external gas that is introduced from the external gas introducing port (11) from flowing to the vicinity of the outer periphery portion of the fluid path cross-section by blocking the external gas at the center portion of the fluid path cross-section.

The invention discloses a gas-liquid two-phase flow distributor and a gas-liquid two-phase flow distribution method. The distributor is provided with a mixing pipe (1). A spiral plate (3) and a throttling orifice plate (2) are arranged in the mixing pipe. An outlet of the mixing pipe is communicated with an inner cavity of a perforated cylinder (7); and the perforated cylinder is arranged in an inner cavity of a distribution cavity cylinder (6). A rotating shaft (15) is arranged on the rotating plate (10). A fixed partition plate (8) is arranged on the inner surface of the distribution cavitycylinder, and a rotating partition plate (9) is arranged on the outer surface of the perforated cylinder (7). A first distribution cavity outlet pipe (11) is communicated with a first distribution cavity (16), and a second distribution cavity outlet pipe (12) is communicated with a second distribution cavity (17). The invention further discloses the gas-liquid two-phase flow distribution method using the gas-liquid two-phase flow distributor. The distributor and the method can be used in the fields of petroleum, chemical industry, nuclear industry and the like, and realize accurate distribution of gas-liquid two-phase flow in proportion.