361results about How to "Reduce the number of adjustments" patented technology

The invention discloses a control method for the heating operation of an inverter air conditioner by an electronic expansion valve. When an inverter split air conditioner performs heating, the electronic expansion valve is subjected to opening control according to the exhaust and suction superheat of a compressor, and the exhaust superheat of the compressor cannot be deviated due to the influence of the length of a connecting pipeline between an indoor unit and an outdoor unit, so that the problem of fluctuation of the electronic expansion valve in the inverter air conditioner with a longer connecting pipeline between the indoor unit and the outdoor unit in the adjusting process during heating can be solved. The exhaust temperature of the compressor is controlled, so the exhaust temperature of the compressor cannot be overhigh, the compressor is ensured to normally run, and the air conditioner system can normally run.

The method provided by the invention comprises the following steps: a machine body, a walking part, a lifting part, a reciprocating pounding part and the like are arranged; a pounding guide element and the like are arranged on a pounding guide device; pounding heads are arranged at two ends of the pounding guide element, so that a power pounding element drives the pounding guide element; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; and the walking part drives the machine body to move ahead and retreats so as not to turn the machine body to excavate and drop materials forward and backward. Equipment provided by the invention comprises the machine body, the walking part, the lifting part, the reciprocating pounding part and the like; the reciprocating pounding part comprises the pounding guide device, the pounding driving device and the like; the pounding heads are both arranged at two ends of the pounding guide element; the pounding driving device comprises the power pounding element and the like; the power pounding element drives the pounding guide element to move in a reciprocating mode; the pounding guide element drives the pounding heads to pound; the reciprocating pounding part is arranged on the lifting part; the lifting part is arranged on the machine body; the walking part drives the machine body to move ahead and retreat so as not to turn the machine body to excavate and drop materials forward and backward.

The invention discloses a magnetic suspension multi-nose central air-conditioning load distribution system and a magnetic suspension multi-nose central air-conditioning load distribution method. The system comprises a starting unit, a calculation unit, a comparison unit, a loading unit and an unloading unit, wherein the starting unit is used for starting compressors; the calculation unit is used for calculating load requirements R of a plurality of compressors and total load R1 of the plurality of current compressors; the comparison unit is used for comparing the calculated load requirements R with the total load R1 of the plurality of current compressors; the loading unit is used for loading the compressors when the R is greater than the R1; and the unloading unit is used for unloading the compressors when the R is smaller than the R1. The method comprises the following steps of: starting the compressors; calculating the load requirements R of the plurality of compressors and the total load R1 of the plurality of current compressors; comparing the calculated load requirements R with the total load R1 of the plurality of current compressors; and loading or unloading the compressors according to the comparison result. The system and the method achieve optimal energy efficiency ratio and highest load distribution efficiency, improve the reliability of the whole machine control, achieve energy conservation and high efficiency, and realizes high energy efficiency ratio of unit control.

The invention discloses a statistical learning model based gate position allocation method. The statistical learning model based gate position allocation method comprises the steps of adopting a prior probability prediction model, producing a take-off time difference value probability set, a take-off time difference value probability set and a landing time difference value probability set according to the historical flying situation of a certain flight, predicting arrival time probability distribution and parking apron airside leisure degree of the flight and accordingly performing flight gate position allocation. The statistical learning model based gate position allocation method is based on airside allocation, facilitates adjustment on only close gate positions of flights and shortens walking distances of passengers. In addition, overall evaluation on the using situation of gate positions is facilitated, allocation can be performed according to the planned landing time probability of the flights based on probability allocation, the gate position allocation accuracy is improved, gate position adjustment times caused by flight delay is decreased, and meanwhile the satisfaction degree of the passengers is improved. The utilization rate of the gate positions is comprehensively improved, and reasonable allocation of gate position resources is ensured.

The invention discloses a cascading variable speed constant frequency wind power system, comprising a winder machine, a double rotor motor, a generator and a transducer; wherein, the double rotor motor comprises a slip ring, a outer rotor, and an inner rotor; the generator comprise a stator and a rotor; the wind machine is cascaded with the inner rotor through a shaft one; the inner rotor is equipped with a three-phase winding, and connected with the transducer; the outer rotor is cascaded with the generator through a shaft two; the stator of the generator has the three-phase winding connected with grid inside. With cascading electric transmission structure, the invention accomplishes function of variable speed constant frequency electricity generation by forming collection of power associated with variable frequency magnetism speed adjustment. The invention also removes the step of speed raising gear case transmission, and reduces failure rate of system. The generator is connected with grid. The power rating capacity of power electronic component can be reduces obviously. The invention is appropriate for the field of wind power generation, steamer generator set, water wheel generator set, internal combustion engine generator, etc.

The invention discloses a method of multi-target coordination reactive power optimization control of a distributed wind farm on the basis of different time scales. According to the method of multi-target coordination reactive power optimization control of the distributed wind farm on the basis of different time scales, different control targets are selected according to different time scales; according to millisecond-level reactive power optimization control, a system uses the instant maximum reactive power supporting capacity of a unit converter as a target; according to second-level reactive power optimization control, the system uses the minimum voltage deviation and the minimum short-time flicker as a comprehensive optimization target; according to minute-level reactive power optimization control, the system uses the minimum active power transmission loss as an optimization target. Reactive power optimization control of a plurality of targets is achieved through adjustment of the reactive power. According to the technical scheme, the distributed wind farm can run safely and economically, and reasonable reactive power distribution can reduce the transmission loss, improve the instant maximum reactive power supporting capacity of the unit converter and quality of electric energy, and ensure normal operation of a power grid.

The invention relates to a reactive power control system applicable to wind farm grid-connection point voltage control and a reactive power control method applicable to the wind farm grid-connection point voltage control. The system includes a scheduling system; the scheduling system is connected wind a wind farm AVC system; the wind farm AVC system is connected with a wind farm concentrated SVC, a measuring device and a fan SCADA system respectively; and the fan SCADA system is connected with fans in a wind farm. The control method comprises the following steps that: the sequence of reactive power output adjustment performed on the fans by an AVC system is determined according to the sensitivity of wind farm grid-connection point voltage; and the total number of reactive power controllable fans is determined according to whether the reactive power of each fan is controllable or not, such that the upper and lower limits of adjustable reactive power total quantity of the fans can be determined; and reactive power total quantity Qreg of the wind farm, which is required to be adjusted, can be determined, and the Qreg is distributed according to a fan-first and SVC-second reactive power distribution strategy. With the reactive power control system and method applicable to the wind farm grid-connection point voltage control of the invention, the defect of long control cycle of the AVC system in the wind farm can be eliminated, and fast response adjustment ability of the SVC can be given to full play.

The invention relates to a control method of AGC facing a control performance standard (CPS) and a control system thereof. Through setting structures of a data acquisition and pretreatment portion, an AGC total power calculating portion, an AGC total power distribution portion, a parameter set interface, an AGC state monitoring portion and the like, based on a frequency difference expectation, AGC regulating variable can be determined and an integral control link is canceled so that AGC set adjustment times can be effectively reduced. Set wear can be greatly reduced and energy consumption can be effective reduced too. The method and the system are beneficial to realize energy saving and emission reduction for power grid.

The invention relates to a multifunctional assembly and disassembly equipment for parts of a dynamical system of new energy vehicles. Bottom wheels can be rotatably installed beneath a chassis and support the chassis. An auxiliary vehicle frame is supported on the chassis and is arranged in a left and right moving mode relative to the chassis. A top plate is supported on the auxiliary vehicle frame and is arranged in an up and down moving mode relative to the auxiliary vehicle frame. A support platform is rotatably arranged on the top plate by rotating around the rear end. A motor support installation platform and a replaceable support installation platform are arranged adjacent to each other and are both arranged on the support platform in a front and back moving mode. A motor support is arranged on the motor support installation platform, a replaceable support is arranged on the replaceable support installation platform, and the replaceable support is an engine support or a gearbox support. The multifunctional assembly and disassembly equipment for parts of the dynamical system of new energy vehicles is ingenious in design, enables assembly and disassembly of parts of the dynamical system of new energy vehicles to be accurate, simple and convenient, greatly simplifies an installation process, reduces investment on manpower and material resources, decreases the number of times of adjustment, greatly improves work efficiency and is suitable for large-scale popularization and application.

The invention discloses a large phased array antenna accurate installation method based on mathematical modeling, is suitable for single-wing or double-wing large phased array antenna accurate installation and adjustment and measurement of large size and high requirement of installation accuracy, and belongs to the field of microwave remote sensing general installation design. The method comprises the steps that (1) a star coordinate system is established; (2) fine adjustment of the star attitude is performed; (3) the coordinates of the installation points on the antenna and the start are measured; (4) a mathematical model is established and a gasket is calculated and adjusted; (5) the gasket is additionally arranged to install the antenna according to the calculation result; and (6) the planar integrated direction is measured and the gasket is corrected. The problems of the influence of repeated trial installation and adjustment of the large phased array antenna on the antenna installation accuracy and efficiency can be avoided so that the method has the advantages that project implementation is high, the installing accuracy can be easily guaranteed, the frequency of installation and adjustment and accurate measurement can be reduced and the installation efficiency can be enhanced.

The embodiment of the invention discloses a switched parameter self-optimizing method and device. The method comprises the following steps: dividing the types of the reasons of abnormity of switching of a neighbouring region of an inter-system; determining the types of service of UE when the UE is switched to the neighbouring region of the inter-system; respectively carrying out statistics on the numbers of times of too early switching, first too late switching and second too late switching of each type of service; during MRO (mobility robustness optimization), carrying out corresponding switched parameter adjustment when the statistical results conform to a certain preparatory condition. The switched parameter self-optimizing method and device have the beneficial effects that the determined types of the abnormity of neighbouring region switching simultaneously have two kinds of attributes, namely the reasons of the abnormity of switching of the neighbouring region of the inter-system and the types of service of the UE when the UE is switched to the neighbouring region of the inter-system, so corresponding switched parameter adjustment can be simultaneously carried out during optimization according to the reasons of the abnormity of switching of the neighbouring region of the inter-system and the corresponding types of service, and then the switched parameter self-optimizing effects can be effectively improved.

The invention belongs to the technical field of micro-assembly, and particularly provides a micro-part pose automatic alignment device and method. The pose automatic alignment method comprises the following steps that S1000, a deviation of a current image characteristic and an expected image characteristic of a second micro-part in a microscopic vision system is obtained; S2000, the deviation is judged whether smaller than a preset threshold value or not, if yes, the second micro-part is aligned with the first micro-part, and if not, S3000 is executed; S3000, a posture adjustment amount and aposition adjustment amount of an end effector is calculated based on the deviation; and S4000, the pose of the end effector is adjusted according to the posture adjustment amount and the position adjustment amount and returning to the S1000 is carried out, wherein the position adjustment amount comprises an adjustment amount for position alignment and a position offset compensation amount caused by compensating the posture adjustment. According to the device and method, by means of closed-loop control and position compensation, alignment errors are reduced, alignment precision and alignment efficiency are improved, and the problems that an existing micro-part pose alignment method is complex in operation process and low in alignment efficiency are solved.

The invention discloses a measurement and installation regulation method for large-scale high-accuracy spherical antenna panel, which comprises: completing nun-contact real-time three-dimension coordinate measurement of antenna panel target ento-ectad from circle to circle with high-accuracy electronic theodolite controlled by computer; building relation between coordinate systems according to measured data to translate target coordinate from measurement coordinate system to antenna coordinate system, translating the data and inputting into software database, and optimizing the tangential and normal regulation values of every panel regulation point; according to calculated result, making space reflection plane coincidence to designed target reflection surface; repeating the said process till satisfying accuracy require. This invention has high regulation accuracy and wide application.

An embodiment of the invention provides a method and a device for adjusting 3D MIMO downward inclination angles and a base station. The method comprises the steps of dividing users into a plurality of user groups according to positions of users within an area covered by the base station and determining the antenna downward inclination angle corresponding to each of the user groups respectively for all user groups, thus, dynamic adjustment of antenna downward inclination angles in a cell can be achieved, at the same time when the cell user performance is improved, compared with respective determination of the antenna downward inclination angle for each of the users, the method has the advantages that the number of times for adjustment is reduced, and the system complexity can be reduced.

The invention relates to a high-precision positioning parking method for an unmanned container truck relative to an automatic field bridge. The method comprises the steps of: employing laser radar anda visual sensor to regulate a relative location interval between an unmanned container truck and an automatic field bridge in a range within 10m; through the automatic field bridge trailing locationdetection information, correcting a mutual position between the unmanned container truck and the automatic field bridge, and according to the relative location information, employing a location finite-state machine and a stepping parking controller to achieve the high-precision location of unmanned container truck field bridge operation. The high-precision positioning parking method for an unmanned container truck relative to an automatic field bridge solves the problem of the GPS / Beidou location errors when the unmanned container truck is operated in a storage yard, can achieve relative high-accuracy position of the unmanned container truck relative to the automatic field bridge, can reduce the number of times of position posture adjustment of the unmanned container truck, can achieve accurate parking and can improve the efficiency of encasement and unloading between the automatic field bridge and the container truck.

The embodiment of the present invention discloses a volume adjustment method and a terminal, including: after acquiring the identity information of the target user; the terminal can determine the target age information of the target user according to the identity information; and then according to the mapping between the age information and the volume adjustment range Relationship, determine the first target volume adjustment range corresponding to the target age information, and set the first target volume adjustment range as the current volume adjustment range of the terminal, and the volume adjustment range is used to represent the volume change value when each response to a volume adjustment command; When responding to the received volume adjustment instruction, adjust the current volume value of the terminal according to the current volume adjustment range. It can be seen that since the volume change value can be set flexibly when responding to a volume adjustment command, when the volume needs to be adjusted, the number of adjustments can be reduced, thereby improving the adjustment efficiency in the volume adjustment process.

The invention provides a keyword putting price optimizing process method. The method comprises: obtaining historical putting data of a keyword which is already put outside of a station, wherein the historical putting data comprises a putting price and income under the putting price; confirming an actual input-output ratio of the keyword based on the putting price and the income under the putting price; judging if the actual input-output ratio is the same as an expected input-output ratio, if not, confirming an object putting price which meets income maximization based on a predetermined income maximization model; adjusting the actual putting price of the keyword to the object putting price, and putting the adjusted object putting price outside the station. The invention further provides a keyword putting price optimizing process system for achieving the method. The keyword putting price optimizing process method and the system can enable the putting price, to be put outside the station, of the keyword to be accurate, and the processing of price adjustment is simple.

The invention belongs to the field of digging and relates to a method for buffering a reciprocating impact tunneling counter-acting force and a buffering heading machine adopting the method. The buffering heading machine comprises a machine body, a travel unit, a reciprocating impact unit, and a buffering unit. The buffering unit comprises a dynamic buffering device or a structure buffering guiding device. The reciprocating impact unit comprises an impact driving device, a fixing support and a buffering support. The dynamic buffering device comprises a rotary dynamic buffering device. The rotary dynamic buffering device comprises a slide stroke splined hub buffering device or a belt buffering device. The structure buffering guiding device is arranged between the reciprocating impact unit and the machine body or between the fixing support and the buffering support. The structure buffering guiding device can guide a buffering direction of the dynamic buffering device and / or a structure buffering device. The buffering unit can buffer and resolve a counter-acting force on the reciprocating impact unit. The reciprocating impact unit is arranged at the machine body. The travel unit drives the machine body to travel.

The invention relates to the technical field of control valves, and discloses an electronic expansion valve which comprises a drive part and a valve body part. The valve body part comprises a valve body with a flow path inlet and a flow path outlet, a valve core placed in an inner cavity of the valve body, and a valve core seat with a valve opening part. The electronic expansion valve is characterized in that the valve core comprises a body section and an adjusting section facing the valve core seat, the body section and the adjusting section are connected through a conical opening section, the adjusting section comprises at least one first circular arc section for adjusting a refrigerating fluid flow curve, the valve core seat comprises a valve opening part which is in a straight section and the conical opening section which is formed by extending from the valve opening part to the valve core, the diameter of the valve opening part is defined as phi 2, the diameter of the small end of a conical transitional section of the valve core is defined as phi 3, the diameter of the big end of the conical transitional section of the valve core is defined as phi 5, and the relation requirement of phi 3<phi 2<phi 5 is met. The electronic expansion valve facilitates adjustment of an air-conditioning system, reduces adjusting frequency, and improves the stability of the system.

This invention relates to blast furnace air-stove automatic control method based on example reasoning. At first assure the best skip area of air-stove, and prescribe a technique parameter contained in the example and relating to the burning procedure, and then extract several successful adjusting examples to be the basic examples of the database during the line-functioning phase; according the real time technique parameter during the functioning procedure, calculate the speed or variable amount of the temperature raising of the arch, if it is lower than the rising speed value or more than the allowable falling range, adjust the air burning ratio combining with the example reasoning method to speed up the temperature rising and restrain the arch temperature falling; this invention does not depend on the mathematic model of furnace air-stove, does not detect the residue amount, and confirm the output of controlling decision according to example reasoning to realize the automatic control of the furnace air-stove.

The invention provides a wind power plant active power dynamic grouping control method. The method comprises the steps of firstly, grouping wind generation sets according to active power predicted values in control periods of the wind generation sets; secondly, performing segmentation preprocessing of wind generation groups of which the power changes non-monotonously; thirdly, determining the requirement of an active power regulating variable of a wind power plant according to a system scheduling instruction and an operation condition of the wind generation sets; fourthly, performing distribution for the active power regulating variable of the wind power plant according to the grouping condition of the wind generation sets; and fifthly, setting time-delay control, when the time-delay control reaches a preset value, determining whether active power predicted values of the wind generation sets in the control periods are updated, and a next control is triggered. The wind generation sets are grouped reasonably according to ultra-short period wind generation power prediction, the active power is distributed reasonably according to variation trends of different types of wind generation sets, the adjusting times of the wind generation sets are reduced, and the power fluctuation of the wind generation sets is reduced.

The invention relates to a photovoltaic power generation support system capable of automatic steering according to illumination, and the system comprises a sunlight intensity collection circuit which consists of a photosensitive sensor array, a signal conditioning circuit, an A / D conversion circuit and an MCU module. The system also comprises a solar cell panel adjusting system which consists of a solar cell panel, a voltage adjusting circuit, an MCU module, an X-axis stepping motor and a Y-axis stepping motor. The system also comprises a peripheral information system which consists of an MCU module, a GPS receiver, a clock module, and a Zigbee wireless communication module. The system employs a control method which combines time control and light control, wherein the time control is taken as the principal thing, and the light control is taken as the auxiliary thing. The method comprises the steps: firstly tracking the sun through time control; secondly carrying out the precise adjustment through employing the light control. The system enables the sunlight to irradiate the solar cell panel vertically at any time, guarantees the adjustment instantaneity of the support under the condition that the number of adjustment times of the support is reduced, and improves the power generation efficiency of a photovoltaic power generation system.

The invention discloses a transmission module which is used for transmitting a base plate. The base plate is provided with an upper surface, a lower surface and two opposite side surfaces, and moves along a movement axis. The transmission module comprises a transmission device, a fixing seat and a plurality of penetrating members; wherein, the transmission device comprises a plurality of first supporting idler wheels, a plurality of first transmission idler wheels and a plurality of guiding idler wheels; wherein, each first supporting idler wheel and each first transmission idler wheel are respectively arranged along a supporting axis and a transmission axis and are respectively contact the lower surface and the upper surface, and the movement axis and the supporting axis are parallel to each other. Each guiding idler wheel is arranged along a guiding axis and is close to one of the side surfaces, the guiding axis is perpendicular to the supporting axis and the transmission axis, and the movement axis is perpendicular to the supporting axis, the transmission axis and the guiding axis. In addition, the penetrating members and the fixing seat are integrally formed, and each penetrating member is penetrated through one of guiding idler wheels.

The invention discloses a main steam temperature control system and method for a heat-engine plant based on an event-triggered mechanism. The control system comprises an outer ring prediction control loop and an inner ring PID control loop, wherein the inner ring PID control loop comprises an auxiliary detecting transducer, an auxiliary controller, an actuator and an attemperator, which are connected with one another in sequence; the outer ring prediction control loop comprises a main steam temperature object, a main detecting transducer, a main controller and the whole inner ring PID control loop, which are connected with one another in sequence; the main controller comprises a reference trajectory introducer, an online corrector, an event trigger, a predicting model device, a comparator and an optimization calculator; the event trigger can screen input signals and determine whether the control signal at the current moment can be sent to the actuator or not according to judgment on event triggering conditions. The main steam temperature control system disclosed by the invention is based on the event-triggered mechanism and only sends signals meeting the conditions without affecting the system stability, so as to reduce the network transmission pressure and prolong the system life.

The invention provides an SDOF (Six Degrees of Freedom) parallel automatic offset adjusting system and method for an optical lens and belongs to the technical field of precision automatic assembly ofoptical lens. Automatic offset adjustment is realized based on a measurement result of decentration and an SDOF parallel structure. The system is mainly composed of a lens barrier adjusting module, adecentration measuring module and an automatic offset adjusting module. The automatic offset adjustment method includes calculating two centers of sphere of a to-be-assembled lens based on the decentration measurement data and driving the SDOF parallel structure for offset adjustment. A method of alternative conduction of measurement and adjustment is employed; namely, whether an offset adjustmentresult meets requirements or not is verified through re-measuring the decentration after each process of offset adjustment. If the offset adjustment result does not meet the requirements, offset adjustment is performed again through refitting of optical axis until the precision meets requirements. According to the invention, integration of decentration measurement and lens automatic adjustment isachieved and measurement of lens decentration and offset adjustment can be realized quickly. Lens offset adjusting precision can be ensured to meet requirements and lens assembly efficiency is improved greatly.

The invention discloses a transmission method for multimedia broadcast and multicast service (MBMS), which includes the following steps: according to the principle that a channel has the strongest independence, spatial channels for transmitting the MBMS service in various periods of time are determined; on a spatial channel corresponding to each period of time, the MBMS service data is sent to a receiving terminal. The invention also discloses a network device which is used for transmitting the MBMS service. By adopting the technical proposal of the invention, the transmission property of the MBMS service can be effectively improved, and the coverage area of MBMS districts can be further enlarged.

The invention relates to a method for producing a surface-densified powder metallurgic gear. The method comprises the following steps of material mixing, powder pressing, sintering, peening, shaping, heat treatment and quality inspection. The gear processed by the method has the advantages that the surface porosity is avoided, the densification degree of the surface can be easily controlled, the number of adjusting times is reduced, the size precision is high, the fatigue-resistance and abrasion-resistance capabilities are improved, the defective rate is greatly reduced, the production cost is reduced, and meanwhile, the performance and the quality are improved.

The invention provides a coaxial casing pipe assembling device and method. A die comprises an annular positioning ring, long adjusting devices and short adjusting devices. The annular positioning ring is of a cylindrical structure. The long adjusting devices and the short adjusting devices are evenly arranged on the two sides of the annular positioning ring in the circumferential direction at intervals and are fixed through clamps. The annular positioning ring and an outer casing pipe are positioned and connected through the short adjusting devices, and an inner casing pipe is adjusted and positioned through the long adjusting devices. According to the coaxial casing pipe assembling device and method, the structure is simple, operation is convenient, universality is high, precision is high, and repeated use can be achieved.

The invention discloses a module Gamma correction method and system based on curve matching. The method comprises the following steps: establishing a reference Gamma curve function by acquiring a modulation coefficient, a modulation index and a deviation value of a reference module; under the reference binding point, obtaining a predicted deviation value of the to-be-corrected module by utilizingthe register reference modulation value, the register modulation value of the to-be-corrected module and the deviation value of the reference module; constructing a predicted Gamma curve of the to-be-corrected module by utilizing the modulation coefficient of the reference module, the modulation index of the reference module and the predicted deviation value of the to-be-corrected module; obtaining register prediction initial values under all binding points by utilizing the prediction Gamma curve of the to-be-corrected module; performing gamma correction on the to-be-corrected module by usingthe register prediction initial values under all the binding points, so that the accuracy of the module Gamma correction initial value is improved, the Gamma correction adjustment frequency is reduced, and the Gamma correction efficiency of the module is improved.

Disclosed are a method for power processing and a terminal. The method comprises that: after receiving a power adjustment command, the terminal adjusts the power; and, when it is detected that a transmission power exceeds a threshold value or the time when the transmission power exceeds the threshold value in a specified time reaches a specified value or the duration when the transmission power exceeds the threshold value reaches the specified value, or it is detected that the number of the specified power adjustment commands received in the specified time exceeds a specified number, detection information is reported to a base station. With an embodiment of the present invention, the probability that the current transmission power of the terminal exceeds a maximum transmission power is reduced, or the number of power adjustments for the terminal is reduced.