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1831 results about "Good control" patented technology
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A control environment is the necessary base set of controls in a governance framework. A good control environment has many elements, such as implementing configuration and change management and implementing rigorous identification and authentication procedures.
Deployment device, system and method for medical implantation
A deployment device for deploying a self-expansible medical implant at a target location in a body cavity, is provided. While generally, the expansion of self-expansible structures tends to be abrupt, and the impact of expansion may cause injury, a two-stage expansion process of the present invention minimizes the impact of exapnsion. Additionally, an ability to manuever the medical imlant into position, after the first stage of expansion, provides for accurate positioning. Thus the present invention is of a deployment device for precise and well-controlled manner of deployment, so as to minimize damage to the cavity wall and to position the implant accurately at the target location. The deployment device includes: an inner tube; an outer tube; and an implant received on the inner tube and enclosed by the outer tube. The implant has a self-expansible anchoring element which is in a contracted condition when enclosed by the outer tube, expands to a partially-expanded condition when the outer tube is retracted, and expands to a fully-expanded condition when the inner tube is removed.. The implant is deployed by introducing the deployment device to the target location in the body cavity; retracting the outer tube with respect to the implant such that the anchoring element self-expands from its contracted condition to its partially-expanded condition; and withdrawing the inner tube from the implant such that the anchoring element self-expands from its partially-expanded condition to its fully-expanded condition to firmly fix the implant at the target location within the body cavity.
Owner:REMON MEDICAL TECH
Method for forming quadruple density sidewall image transfer (SIT) structures
InactiveUS6875703B1Small sizeSemiconductor/solid-state device manufacturingSemiconductor devicesImage transferEngineering
A method is provided for forming a quadruple density sidewall image transfer (SIT) structure. Oxide spacers are formed on opposite sidewalls of a first mandrel. The oxide spacers form a second mandrel. Then sidewall spacers are formed on opposite sidewalls of the oxide spacers forming the second mandrel. A pattern of the sidewall spacers is used to form the quadruple density sidewall image transfer (SIT) structure. The method of the invention enables formation of four well-controlled lines for each lithographically minimum pitch dimension.
Owner:IBM CORP
Hardmask open process with enhanced CD space shrink and reduction
InactiveUS20090191711A1Electric discharge tubesSemiconductor/solid-state device manufacturingResistCritical dimension
Methods for forming an ultra thin structure. The method includes a polymer deposition and etching process. In one embodiment, the methods may be utilized to form fabricate submicron structure having a critical dimension less than 30 nm and beyond. The method further includes a multiple etching processes. The processes may be varied to meet different process requirements. In one embodiment, the process gently etches the substrate while shrinking critical dimension of the structures formed within the substrate. The dimension of the structures may be shank by coating a photoresist like polymer to sidewalls of the formed structure, but substantially no polymer accumulation on the bottom surface of the formed structure on the substrate. The embodiments described herein also provide high selectivity in between each layers formed on the substrate during the fabricating process and preserving a good control of profile formed within the structure.
Owner:APPLIED MATERIALS INC
Equipment and method for contemporaneous decision supporting metabolic control
InactiveUS6368272B1Control healthSimple methodPhysical therapies and activitiesDrug and medicationsDecision takingGood control
The invention addresses hardware and software products capable to make contemporaneous accurate predictions regarding how a person's biological system will respond to a series of stimuli. The predictions can then be communicated in real time, enabling confirmation of good control status, need for corrective action, planning future actions, or even outside intervention in case of emergency. Also addresses by the invention is a family of diagnostic hardware based on intelligent optoelectronic sensors that incorporate one or more Wedge-and-Strip Position-Sensitive Photo-Detectors optimized for probabilistic real time evaluation of spectroscopy data from living subjects.
Owner:PORUMBESCU AURELIU M
Medical devices for contemporaneous decision support in metabolic control
InactiveUS6835175B1Control healthSimple methodMedical simulationSurgeryMedical equipmentDecision taking
The invention addresses hardware and software products capable to make contemporaneous accurate predictions regarding how a person's biological system will respond to a serious of stimuli. The predictions can then be communicated in real time, enabling confirmation of good control status, need for corrective action, planning future actions, or even outside intervention in case of emergency. Also addressed by the invention is a family of diagnostic hardware based on intelligent optoelectronic sensors that incorporate one or more Wedge-and-Strip Position-Sensitive Photo-Detectors optimized for probabilistic real time evaluation of spectroscopy data from living subjects.
Owner:PORUMBESCU AURELIU M
Display device and driving method thereof
ActiveUS20100164847A1Static indicating devicesSemiconductor/solid-state device manufacturingAnode voltageDisplay device
In a display device, the anode voltage of an organic light emitting element is periodically reset. The control terminal of a driving transistor is periodically reset, and an input data voltage is connected to the control terminal through an input terminal and an output terminal of the driving transistor. As a result, good control over the displayed luminance is achieved. Other features are also provided.
Owner:SAMSUNG DISPLAY CO LTD
Herbicide composition containing sulfonylurea, pyridine and cyhalofop-butyl and use thereof
ActiveCN101530104AGood synergyImprove weed control effectBiocideAnimal repellantsSulfonylureaBULK ACTIVE INGREDIENT
The invention relates to a herbicide composition, containing sulfonylurea or salt thereof, pyridine and cyhalofop-butyl as active ingredients with the weight ratio of 0.1 to 5: 0.1 to 10: 0.1 to 10. Compared with herbicides with single dose, the weed control effect of the herbicide composition of the invention is obviously improved, thereby reducing the using dosage, reducing the influence degreefor the environment while reducing the pesticide cost, simultaneously enlarging weed control spectrum, and having good control efficiency for Gramineae and broadleaf weeds in rice paddy fields.
Owner:SHANGYU NUTRICHEM
Herbicide composition containing sulfonylurea, pyridine and penoxsulam and use thereof
InactiveCN101530105AGood synergyImprove weed control effectBiocideAnimal repellantsEnvironment effectSulfonylurea
The invention relates to a herbicide composition, containing sulfonylurea or salt thereof, pyridine and penoxsulam as active ingredients with the weight ratio of 0.1 to 5: 0.1 to 10: 0.1 to 10. Compared with herbicides with single dose, the weed control effect of the herbicide composition of the invention is obviously improved, thereby reducing the using dosage, reducing the influence degree for the environment while reducing the pesticide cost, simultaneously enlarging weed control spectrum, and having good control efficiency for Gramineae and broadleaf weeds in rice paddy fields.
Owner:NUTRICHEM LAB CO LTD
Device and method for trigger point massage therapy
ActiveUS20150119771A1Increase pressureElectrotherapyDevices for pressing relfex pointsLaser lightElectrical stimulations
A trigger point massage therapy device for well-controlled trigger point therapy, suitable for long-term use by a health practitioner with minimal risk of pain or injury, can include a main body with a handle, rubberized grips, a connection pin, that can connect to a pressure point base with a pressure point tip, whereon can further be installed additional pressure point tips in different sizes; a pressure sensor, a step-vibration component, an electro-motor; and additionally heating, ultra sound, electrical stimulation, infrared, and cold laser light components. The device can further include a control unit, which can be used for programming and controlling the functions of the device. Also described is a method for trigger point massage therapy, including measuring a pressure, adjusting the pressure, holding the pressure, rotating / unwinding, vibrating, and increasing the pressure.
Owner:PSOAS MASSAGE THERAPY OFFICES P C
Release controlling fertilizer and its prepn
InactiveCN1417172AReduce lossesIncrease profitFertiliser formsFertilizer mixturesControl releaseOrganic solvent
The present invention relates to a controlled release fertilizer, especially, a new controlled release fertilizer and its production process. The controlled release fertilizer comprising coating of environmentally friendly material and fertilizer core, which is nitrous fertilizer containing urease inhibitor and / or nitration inhibitor. The production process includes fertilizer core preparation via spray granulating in fluidized bed, or spray granulating in rotating drum, or disc mixing granulating; and physical coating via spraying in fluidized bed. The fertilizer has good controlled release effect and wide application range, and is environmentally friendly and low in cost.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI
Intelligent household electrical appliance master and slave control methods and systems
ActiveCN103941653AImplement localRealize remote centralized controlProgramme total factory controlAutomatic controlInformation sharing
The invention is suitable for the field of automatic control, and provides an intelligent household electrical appliance master control method. The method includes: sending a search command to search a communicable household electrical appliance and establishing a control protocol therewith; generating a control command; inquiring operating state information of the intelligent household electrical appliance according to the control command and sharing the operating state information with all communicable household electrical appliances; and an intelligent household electrical appliance adjusting operating parameters of itself according to shared operating state information. The abovementioned intelligent household electrical appliance main control method can not only realize local and remote centralized control of all intelligent household electrical appliances in a household, but can also realize mutual cooperative control among all intelligent household electrical appliances in an intelligent household electrical appliance network, so that an intelligent household electrical appliance adjusts internally preset control parameters according to the shared operating state information to realize automatic control operation, thereby enabling the operating state of the intelligent household electrical appliance control network to achieve the best effect, and the intelligent household electrical appliance control system has a flexible control method and a good control effect.
Owner:GD MIDEA AIR-CONDITIONING EQUIP CO LTD
Remote distributed control system and distributed control method based on Internet
InactiveCN103605342AImprove production management efficiencyWill not affect the running statusTotal factory controlProgramme total factory controlHuman–machine interfaceReal-time data
The invention relates to a remote distributed control system and a distributed control method based on the Internet. The system comprises a remote operation station, a field control station and the Internet, wherein the remote operation station comprises a control strategy configuration software module, a database configuration software module, a man-machine interface configuration software module and a client end communication software module, the field control station comprises a local server, a server end communication software module, a control station and field equipment, and a client end and the server end communication software module are connected through the Internet. The method comprises the steps that: 1, control configuration is accomplished in the configuration software of the remote operation station; 2, data communication is established between the remote operation station and the field control station; 3, corresponding control logic configuration is carried out by the field control station, the field equipment is driven to operate, and real-time data is acquired and updated; and 4, real-time monitoring and debugging on control configuration are accomplished through the configuration software of the remote operation station. The control system and the control method have advantages of good control effects, high real-time performance and wide application scope.
Owner:FUZHOU UNIV
Method for weakening coal-rock mass by hydraulic blasting and fracturing
ActiveCN101644156AImprove fraudIncreased range of cracking fissuresDisloding machinesFluid removalSpelunkingHydraulic fracturing
The invention discloses a method for weakening coal-rock mass by hydraulic blasting and fracturing. The structure of coal-rock mass can be changed by adopting hydraulic blasting and fracturing. The method comprises the following steps: drilling a hole in a coal layer, and placing water-gel explosive in the hole; and then sealing the hole and injecting water into the hole to a set pressure; stopping water injection based on the standard that no hydraulic fracture is generated; detonating the explosive and carrying out hydraulic blasting to lead the wall rock of the drilling hole to burst; generating a great number of fractures on the periphery of the drilling hole; and then carrying out hydraulic fracturing; expanding along exploding fracture under the action of hydraulic pressure of the fracture, and forming a great number of hydraulic pressure fractures. The method of the invention not only can effectively weaken the strength of the coal-rock mass, can reduce wall rock stress of the weakening area, but also can improve ventilation property of the coal layer; is an effective technical way of improving the top coal caving, preventing impact mine pressure, preventing coal and gas burst, and improving efficiency of gas extraction in coal mine. The method has simple process, convenient construction, reliable safety, easy operation and good control.
Owner:CHINA UNIV OF MINING & TECH
Three-dimensional automatic feeding, discharging and detecting device
ActiveCN102990458ARealize handlingPrecise handlingProgramme-controlled manipulatorMeasurement/indication equipmentsEngineeringManipulator
Owner:NORTHWESTERN POLYTECHNICAL UNIV
Coated controlled release fertilizer of degradable film prepared by reclaiming thermoplastic resin
ActiveCN1603288ATo achieve the purpose of precise controlled releaseFast agingFertiliser formsFertilizer mixturesPolystyrenePolymer chemistry
This invention relates to an envelope control release fertilizer and its production method that using heating fluidized-bed envelope technology. Exhausted thermoplastic resins are used and many filling materials are added, it is used in quick mass industrialized production. Polystyrene cellular resin and polyethylene pellicle resin are mixed as certain proportion set before, and certain proportion flour, corn powder and rubber powder are mixed and dissolved in mixed liquor perchlorethylene and dichloromethane. The liquor is uniformly sprayed to the pre-heated composite fertilizer, carbamide, lemery salt and other fertilizer particles through twin fluid atomization nozzle in heating fluidized-bed in order to form macromolecule polymer envelope that lubricity and densification and with different capabilities of breaking through of water. The liquor is recovered through special made condensation and compaction recovery plant. This production not only has good nutrition control and releasing capability and the nutrition control and releasing term can reach 1 to 12 months, but also the putamina residue in the soil can be degraded in short time, so it belongs to environment good control and releasing fertilizer.
Owner:SHANDONG AGRICULTURAL UNIVERSITY
Repetitive motion planning method for redundant manipulator
The invention provides a repetitive motion planning method for a redundant manipulator, which comprises the following steps of: 1) resolving a manipulator repetitive motion scheme on an acceleration layer by adopting quadratic model optimization through an upper computer, designing the minimum performance index as repetitive motion, and restraining by an acceleration Jacobian equation, a joint angle limit, a joint speed limit and a joint acceleration limit; 2) converting the quadratic model optimization in the step 1) into standard quadratic programming; 3) solving the standard quadratic programming in the step 2) by using a linear projection equation-based primal-dual neural-network solver or quadratic programming numerical method; and 4) transmitting a solving result in the step 3) to acontroller of a lower computer for driving the manipulator to move. The method realizes the repetitive motion of the manipulator on the acceleration layer, has good control effect on the redundant manipulator inconvenient to control, and can effectively prevent the manipulator from exceeding the limits and being physically damaged according to various joint limits.
Owner:SUN YAT SEN UNIV
Permanent magnet synchronous motor (PMSM) AC servo system
InactiveCN101867343AEliminate fluctuationsReduce harmonic lossElectronic commutation motor controlVector control systemsOvervoltagePermanent magnet synchronous motor
The invention relates to a permanent magnet synchronous motor (PMSM) AC servo system, which is composed of a DSP control panel, a rotary transformer, a main power circuit and a conditioning and protecting circuit, a motor body consists of an armature winding and a permanent magnet core rotor, wherein the motor is excited by a permanent magnet, and the DSP is used for realizing an field-orientated control algorithm, communication, sampling calculation of current and configuration output of a drive; the output of the rotary transformer enables data to be transmitted to the DSP via four-path DA transform chips and SPI of the DSP or multi-channel buffering; the DSP outputs pulse width modulation, is connected with voltage signals output by a current regulator, and is connected with a PWM1-PWM3 drive inverter which can convert the voltage signals into three-phase switch signals by CLARK inverse transformation, and the inverter outputs to the armature winding so as to control the armature winding of the motor to generate a rotary round magnetic field; and the main power circuit is composed of a direct current detection circuit with controllable rectification, an inverter, a current detection circuit, an overvoltage discharging circuit, a protection circuit and a driving circuit. The invention adopts the field-orientated control algorithm which can control the torque, speed and position state of the motor in real time and has good control performance.
Owner:南京大桥机器有限公司
Method for forming pattern, thin film transistor, display device, method for manufacturing thereof, and television apparatus
InactiveUS7642038B2Reduce in quantitySimple manufacturing processSolid-state devicesSemiconductor/solid-state device manufacturingDisplay deviceEngineering
To provide a display device which can be manufactured with higher efficiency in the use of material through a simplified manufacturing process, and a method for manufacturing the display device. Another object is to provide a technique by which patterns of a wiring the like which constitutes the display device can be formed to a desired shape with good control. In a method for forming a pattern according to the present invention, a mask is formed over a light-transmitting substrate; a first region including a photocatalyst is formed over the substrate and the mask; the photocatalyst is irradiated with light through the substrate to modify a part of the first region; a second region is formed; and a composition containing a pattern forming material is discharged to the second region, thus, a pattern is formed. The mask does not transmit light.
Owner:SEMICON ENERGY LAB CO LTD
Coated controlled-release fertilizer modified by natural polymer and preparation method thereof
ActiveCN102295491AImproved controlled releaseFully Environmentally DegradableAgriculture gas emission reductionFertilizer mixturesCellulosePetrochemical
The invention discloses a natural polymer modified coated controlled release fertilizer and a preparation method thereof. The fertilizer comprises a fertilizer core layer and a coated layer positioned on the outside of the fertilizer core, wherein the material of the fertilizer core layer is formed from fertilizer particles, and the coated layer which is one layer or two layers and is a two layered coated controlled release fertilizer is a cellulose layer and a hydrophobic film. The coated controlled release fertilizer provided by the invention has a good controlled release performance, and simultaneously the film material has biodegradability, so an environmental problem brought by the controlled release film material is solved. A natural product cellulose is adopted to get rid of the dependence of the coated material on a petrochemical resource, so the sustainable development of the coated material is realized. The coated controlled release fertilizer, which has the advantages of improvement of the fertilizer utilization rate, environment pollution reduction, sustainable development, and the like, has a wide application prospect.
Owner:大项生态建设有限公司
System and method for combined bioelectric sensing and biosensory feedback based adaptive therapy for medical disorders
InactiveUS20090099474A1Improve efficiencyQuick identificationElectroencephalographyElectrotherapyMedical disorderMental state
A system and method for adaptive therapeutic intervention to effect real-time changes in the behavioral profile of an individual to facilitate the effectiveness of combined bioelectric sensing and biosensory based therapy for specific disorders. The system and method induces a temporary physiological state-of-mind (e.g., increased relaxation) to effect persistent changes to the cognitive-emotive profile of the individual (e.g., reduce internal tinnitus). The sense- and mental state-awareness responses, integrated into a two-way (i.e., bi-directional) feedback system using a dynamic interface with intelligently controlled thresholds. The invention takes into account details of multi-variate and nonlinear dynamics and database templates to more accurately compute the user's “state-of-mind.” It then utilizes this “state-of-mind” to drive therapeutic and non-therapeutic stimulus intervention. By way of a “combinatorial stimulation sequence” approach that uses customized sounds, the present invention creates a fine-tuned and well-controlled process. The significance of this interactivity is a prolonged change in the individual's cognitive-emotive profile.
Owner:TINNITUS OTOSOUND PRODS
System and method for nonlinear dynamic control based on soft computing with discrete constraints
InactiveUS6950712B2Minimizes entropyMaximizes sensor information contentDigital data processing detailsAnimal undercarriagesNon linear dynamicMinimum entropy
A control system using a genetic analyzer based on discrete constraints is described. In one embodiment, a genetic algorithm with step-coded chromosomes is used to develop a teaching signal that provides good control qualities for a controller with discrete constraints, such as, for example, a step-constrained controller. In one embodiment, the control system uses a fitness (performance) function that is based on the physical laws of minimum entropy. In one embodiment, the genetic analyzer is used in an off-line mode to develop a teaching signal for a fuzzy logic classifier system that develops a knowledge base. The teaching signal can be approximated online by a fuzzy controller that operates using knowledge from the knowledge base. The control system can be used to control complex plants described by nonlinear, unstable, dissipative models. In one embodiment, the step-constrained control system is configured to control stepping motors.
Owner:YAMAHA MOTOR CO LTD
Light-emitting element, light-emitting device, and electronic device
ActiveUS20080142794A1High luminous efficiencyLong lastingOrganic chemistrySolid-state devicesSimple Organic CompoundsLight emitting device
A light-emitting element disclosed in the present invention includes a light-emitting layer and a first layer between a first electrode and a second electrode, in which the first layer is provided between the light-emitting layer and the first electrode. The present invention is characterized by the device structure in which the first layer comprising a hole-transporting material is doped with a hole-blocking material or an organic compound having a large dipole moment. This structure allows the formation of a high performance light-emitting element with high luminous efficiency and long lifetime. The device structure of the present invention facilitates the control of the rate of the carrier transport, and thus, leads to the formation of a light-emitting element with a well-controlled carrier balance, which contributes to the excellent characteristics of the light-emitting element of the present invention.
Owner:SEMICON ENERGY LAB CO LTD
Polymer-coated controlled release pesticide granule and preparation method thereof
ActiveCN103387456AImprove water resistanceImprove targetingFertilizer mixturesWater basedPolyurethane membrane
The invention discloses a polymer-coated controlled release pesticide granule and a preparation method thereof. The polymer-coated controlled release pesticide granule comprises a pesticide granule and a polymer layer, wherein the pesticide granule is coated by the polymer layer; the pesticide granule contains one or more effective pesticide components; the polymer layer is a hydrophobic membrane layer and comprises a water-based polyacrylate membrane material or a polyurethane membrane material; the mass of the polymer layer accounts for 3%-15% of the weight of the polymer-coated controlled release pesticide granule. The effective pesticide components are acted on the peripheries of crop roots after the polymer-coated controlled release pesticide granule disclosed by the invention is applied along with a base fertilizer. The polymer-coated controlled release pesticide granule has good prevention and control effects on farmland weeds, soil insects and soil-borne diseases, and the coating material synthesis and preparation process is advanced and the polymer-coated controlled release pesticide granule has good controlled release property. The polymer-coated controlled release pesticide granule provided by the invention has the advantages of pesticide utilization ratio improvement, environment pollution reduction, sustainable development and wide application prospect.
Owner:BEIJING BOYICHENG SCI & TECH
Novel intelligent electric machine battery control system
InactiveCN101141070AImprove energy utilizationReduce lossMotor control for low load efficiencyBatteries circuit arrangementsControl systemElectric machine
The invention discloses a new intelligent motor battery control system. Based on the former connection of the storage battery, the motor and the controller of electric truck / battery motor vehicle / electric bicycle, a management system is added for the storage battery, and the motor is internally provided with a state monitoring and communication control module; at the same time, the controller is also additionally provided with a storage battery management system and a motor communication control module. The structure, integrating the storage battery, the motor and the controller, takes advantages of the best control proposal of the control to maximum the service life of the storage battery, providing most electric energy discharging for once; meanwhile, the control proposal, which is designed according to the motor characteristics, promises the motor to optimize the operation on the high efficiency platform. Without changing to the vehicle structure of the former electric truck / battery motor vehicle / electric bicycle, the system can conveniently and efficiently combine the storage battery, the motor and the controller, thereby improving the energy utilization efficiency of the electric truck / battery motor vehicle / electric bicycle; moreover, with characteristic of extensive application, and as the rising demand to the electric vehicles nationwide, bringing great yearly demand, the system possesses extremely large social and economic benefits.
Owner:マイウェイ技研
Method for reconstructing phase current of electromotor
ActiveCN101917157AAvoid distortionReduce occupancyElectronic commutation motor controlVector control systemsPhase currentsLow speed
The invention provides a method capable of reconstructing a three-phase current of an electromotor in full range at any time when the electromotor is driven by a space vector pulse-width modulation mode, which has simple algorithm, high university and relatively good control effects. In the method, an asymmetrical pulse-width modulation (PWM) mode is used for modulation, modulation vectors in a non-observation area are decomposed and one of the decomposed vectors has at least two different non-zero basic space vectors of which the continuous action time is longer than or equal to the action time of a minimal vector in a PWM period; and thus, the non-observation areas are avoided in a space vector PWM process , and the full-time and full-range three-phase current reconstruction and detection of the electromotor are realized, in particular vector distortion is avoided when the electromotor is controlled to be at a low speed. Moreover, the method has the advantages of greatly improving reliability, obviously reducing cost, along with simple algorithm, small code occupation and little increase of current harmonics.
Owner:东元总合科技(杭州)有限公司
Electroencephalographic and electromyographic information automatic intention recognition and upper limb intelligent control method and system
ActiveCN109394476AMotion track real-time adjustmentImprove recognition accuracyDiagnosticsGymnastic exercisingIntent recognitionRisk stroke
The invention relates to an electroencephalographic and electromyographic information automatic intention recognition and upper limb intelligent control method and system, which are used for rehabilitation treatment of the upper limb of a stroke patient, an electroencephalographic and surface electromyographic signal collector collects and processes the electroencephalographic and surface electromyographic signals of the patient in real time, a mixed kernel function formed by weighting a polynomial kernel function and an RBF kernel function weights is used to perform fitting and prediction, soas to more accurately identify and monitor the motion intention of the patient, and judge the corresponding degree of rehabilitation, according to which a corresponding rehabilitation training strategy is adopted. When the rehabilitation degree of the upper limb of the stroke patient is low, passive training control is adopted. When the rehabilitation degree of the upper limb of the stroke patient is high, active, assisted and resistive control modes are adopted. The hybrid kernel function support vector machine model provided by the invention has better learning ability and generalization performance, high prediction accuracy and good control performance, and the prediction result meets the index requirements of a rehabilitation robot for stroke patients.
Owner:上海神添实业有限公司 +1
Calcination predictive control system and method for rotary cement kiln
InactiveCN102629104AStable temperatureTaking into account energy consumption per unit of productionRotary drum furnacesAdaptive controlData informationClosed loop
The invention relates to a calcination predictive control method and a calcination predictive control system for a rotary cement kiln. The method comprises the following steps of: (1) acquiring field data of the calcining process of the rotary cement kiln and classifying the field data; (2) respectively carrying out model identification on the data and organically combining the data to establish a prediction model; (3) carrying out prediction on historical and future data information on the calcining process by the prediction model to obtain an output of the calcining process and outputting error feedback correction by utilizing the model to obtain a closed-loop prediction output of the calcining process; and (4) according to the closed-loop prediction output and a reference output trace,constructing a non-linear target function and carrying out solution of a optimal solution on the target function by using a sequential quadratic programming method to obtain a predicted value of the calcination controlling quantity. The system comprises an intelligent detection instrument and an actuator which are connected with the rotary cement kiln, a data storage device and an upper computer,wherein a calcination predictive control algorithm is embedded in the upper computer. The calcination predictive control method and the calcination predictive control system for the rotary cement kiln can be suitable for the dynamism of the calcining process of the rotary cement kiln and the coupling, nonlinearity and obsoleteness between multiple variables, and obtain good control effect.
Owner:YANSHAN UNIV
Etching radical controlled gas chopped deep reactive ion etching
ActiveUS20070015371A1Decorative surface effectsSemiconductor/solid-state device manufacturingInductively coupled plasmaChemical measurement
A method for silicon micromachining techniques based on high aspect ratio reactive ion etching with gas chopping has been developed capable of producing essentially scallop-free, smooth, sidewall surfaces. The method uses precisely controlled, alternated (or chopped) gas flow of the etching and deposition gas precursors to produce a controllable sidewall passivation capable of high anisotropy. The dynamic control of sidewall passivation is achieved by carefully controlling fluorine radical presence with moderator gasses, such as CH4 and controlling the passivation rate and stoichiometry using a CF2 source. In this manner, sidewall polymer deposition thicknesses are very well controlled, reducing sidewall ripples to very small levels. By combining inductively coupled plasmas with controlled fluorocarbon chemistry, good control of vertical structures with very low sidewall roughness may be produced. Results show silicon features with an aspect ratio of 20:1 for 10 nm features with applicability to nano-applications in the sub-50 nm regime. By comparison, previous traditional gas chopping techniques have produced rippled or scalloped sidewalls in a range of 50 to 100 nm roughness.
Owner:RGT UNIV OF CALIFORNIA
Asymmetric four-rotor UAV (unmanned aerial vehicle) and control method thereof
ActiveCN103383571AIncrease takeoff weightGood control robustnessAttitude controlPosition/course control in three dimensionsFuzzy inferencePrediction algorithms
The invention discloses an asymmetric four-motor UAV and a control method thereof. According to the asymmetric four-motor UAV, the connection line between two large motor propellers is perpendicular to that between two small motor propellers, and the connection line between the two small motor propellers is shorter than that of the two large motor propellers; the problem of control system divergence is solved through a Smith prediction algorithm; fuzzy control rules are designed and fuzzy inferences are utilized to achieve the optimized adjustment of PID (proportion-integral-derivative) parameters under different flight working conditions. The asymmetric four-motor UAV has the advantages of large take-off weight and good control robustness. The control method of the asymmetric four-motor UAV solves the problems of inaccurate control model and large system interference and reduces the control coupling degree of the four-rotor UAV, thereby reducing the control difficulty and achieving the smooth control of the four-rotor UAV.
Owner:HUNAN AEROSPACE ELECTROMECHANICAL EQUIP & SPECIAL MATERIAL INST
Heat control system for hybrid power or range-extending type electric automobile
InactiveCN103660916AImprove heating efficiencyImprove fuel efficiencyAir-treating devicesVehicle heating/cooling devicesDrive motorThermal control system
The invention discloses a heat control system for a hybrid power or range-extending type electric automobile. A power battery system supplies power to a refrigeration cycle system and a heating cycle system, and a whole automobile controller controls the refrigeration cycle system or the heating cycle system in the mode that the battery temperature and voltage information transmitted by the power battery system is collected through a CAN bus. An electric driving refrigeration cycle system preheats an engine for starting through heat generated by an electric appliance part, and an engine refrigeration cycle system enables the temperature of refrigeration liquid of the heating cycle system to be raised through heat generated after the engine is started. According to the heat control system, effective heat control over each component of the electric automobile is achieved, waste heat of electrical apparatus elements and waste heat of the engine are adopted for improving the heating efficiency of the electric automobile, heat waste is reduced, the energy utilization rate is improved, waste heat of a driving motor or an electric heater system can be used for preheating the engine, the engine burning efficiency is improved, and good control over heating or refrigerating of a power battery package can be achieved.
Owner:TIANJIN QINGYUAN ELECTRIC VEHICLE
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