683results about How to "Optimal control method" patented technology

A computer device has user interface configured to display user actuatable game elements and to detect user input when a user engages with a game element; and a processor configured to receive a detected user input and on detecting a match game condition to control the user interface to remove at least three game elements from the display and to provide on the user interface replacement user actuatable game elements, wherein the manner of providing each replacement game element has a graphical representation governed by a tile associated with each game element, wherein each tile has a selectable physics which controls at least one of (i) the direction in which it moves to replenish a vacancy left by the removed user game elements; and (ii) the speed at which it moves to replenish the vacancy.

An embodiment of the present invention provides a system and method for a sponsoring organization to: (1) utilize a rules-based computer system to capture trade orders from sub-advisors (money management firms) in order to implement a pre trade compliance review process, thereby enabling the sponsoring organization to prevent the execution of trade orders by a sub advisor that violates securities laws and / or account restrictions; and (2) determine and assign, based on expected market impact of a trade order to buy or sell securities, whether responsibility (discretion over the decisions related to how, when and with whom a trade order is executed) for executing the trade order is assigned to the money management firm for an investment portfolio or to the sponsoring organization of that portfolio. Trade orders are categorized in real-time as “high touch” (significant effort and market impact) or “low touch” (insignificant effort and market impact).

The invention provides an LED atmosphere illumination control system, which adopts the standard DMX512 control protocol and a bus type network structure. A controller intensively controls all LED lamps. The system comprises an embedded light synchronous controller, an indoor atmosphere illumination controller, a general high-power LED drive, a transmission medium and the LED lamps. The system canperform scene mode control by network control mode, remote control mode, automatic control mode, manual control mode and various control modes; no less than nine scene modes are preset or can be freely set according to individual preference; digital diming can be achieved by an embedded program, and the illumination and the color tone of the light can be controlled precisely; and each lamp can beindependently controlled or can be controlled by networking. The system can ensure the evenness of the illumination effect while achieving the energy-saving illumination control and is widely applicable to local intensive illumination control of public places and families.

The invention provides an intelligent control system for LED tunnel lamps and a method for controlling the LED tunnel lamps. The system comprises a control center PC computer, a tunnel lamp controllerand lamps, wherein a brightness / temperature / current sensor is connected with the controller via a transmission medium; the control center PC computer is connected with a plurality of drive control modules via the controller and a bus structure; and each drive control module is connected with a constant-current driving power supply of each LED tunnel lamp. Therefore, the system detects the intensity and weakness of light at the entrance and exit of a tunnel in real time via optical detectors distributed in the tunnel by applying highly accurate intelligent detection measure based on an advanced RISC microprocessor, and feeds processed data back to a control center; the control center processes the data and controls various tunnel lamps at different positions so as to control the brightnessof the LED tunnel lamps at different positions and finally achieve the aim of saving energy source.

There is provided a control system which controls a link structure constructed by connecting a plurality of rigid body links and driven by making a joint actuator generate an actuator force. The control system includes a mechanical model including geometric parameters and dynamical parameters of the link structure, a virtual external force calculating means for calculating a virtual force acting on the mechanical model of the link structure, a contact part detecting means for detecting contact parts between the link structure and the outside, and an actual force converting means for converting the virtual force calculated by the virtual external force calculating means into an external force capable of existing actually and the actuator force of the joint actuator, using contact information detected by the contact part detecting means. The joint actuator is made to generate the actuator force output by the actual force converting means.

The invention discloses an automatic cutting control system and an automatic cutting control method for a coal cutter. The control system comprises a controller, a data storage device, a working condition detection apparatus for the coal cutter and a control host. The working condition detection apparatus for the coal cutter comprises a walking displacement detection unit, an angle detection unit one for detecting the swing angle of a right rocker arm, an angle detection unit two for detecting the inclination angle of a working face, an angle detection unit three for detecting the swing angle of a left rocker arm, and an angle detection unit four for detecting the upward or downward angle of the coal cutter. A left height adjustment oil cylinder and a right height adjustment oil cylinder are both controlled by the controller. The control method comprises the steps of: 1) learning and memorizing the cutting trace of the currently working coal seam; 2) accomplishing the automatic coal cutting according to the memorized trace, and adjusting the memorized trace in real time; 3) repeating step 2) until all the exploration processes of the currently working coal seal is finished. The system of the invention is advantageous by a simple circuit, a reasonable design, a convenient control method, and good application effect, and can realize the automatic cutting control of the coal cutter.

The invention relates to a load-prediction-based control system and method for a heating ventilation air-conditioning system. On the one hand, the load-prediction-based control system (CS) for the heating ventilation air-conditioning system is provided. The control system comprises a foundation database (10), a sensing system (20), a load predication part (30) and a central controller (40), wherein the foundation database is used for storing data related to the heating ventilation air-conditioning system, the sensing system is used for providing measured data related to the heating ventilation air-conditioning system, the load predication part is used for calculating a predicted load value of the heating ventilation air-conditioning system, and the central controller is used for calculating actual load capacity of the heating ventilation air-conditioning system on the basis of the measured data. The central controller sends out a control command for controlling operation of the heating ventilation air-conditioning system on the basis of the difference value of the predicted load value and the actual load capacity. According to the load-prediction-based control system and method, stable and optimized energy saving control over the heating ventilation air-conditioning system can be achieved.

The invention provides an automatic control method for a camber and a wedge of a hot rolled strip roughing mill, which is realized by adding an auxiliary control module in a hot rolled strip roughing mill control system. The automatic control method takes the actual values of rolling forces on two sides of an in-situ roughing mill, the actual calculated values of a gap between rolls and bounce parameters on two sides of a rack as inputs to be accurately calculated, and finally realizes the correction to the camber and the wedge through regulating the gap between rolls on one side or two sides of the rolling mill. By applying the control method, the extremely accurate control over the camber and the wedge can be realized without adding a camber shape detection device with blanks, and the control effect of the control method can be further assured if the camber shape detection device is equipped in situ.

In a robot having at least one rotating joint (which may have at least two degrees of freedom), in order to perform a high-speed switching operation between a closed link mode and an open link mode with the outside world or a working object, each limb is provided with minimum-required, passive degrees-of-freedom (such as a backlash of a reducer) for removing a dynamic closing error and also the movable range of the limb is properly controlled. Even when an actuator for driving the corresponding joint has no means for obtaining a torque signal, a high-speed switching operation between the closed link mode and the open link mode can be stably achieved.

The present invention provides a scratch masking coating system for glass containers such as bottles that is adaptable to a variety of bottle surface and application conditions. The scratch masking coating is applied as an oil in water emulsion which provides flexibility in handling and application techniques while minimizing handling problems. In the present invention, the oil in water emulsion is treated with an emulsion breaker or destabilizer so that the emulsion is destabilized or broken after application to the surface to be treated. The destabilization or breaking is instigated by the addition of an emulsion breaker or heat to the emulsion in sufficient quantity to provide the desired break time.

The invention discloses a piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper which comprises a vibration damper body and a vibration damper controller. The vibration damper body comprises a cylinder barrel, a pressure supporting floating piston, a middle isolation floating piston, a piston rod, piezoelectric generation modules, a spring pressing plate, a force transfer spring, a spring clamping seat, a lower permanent magnet, a magnetic coil, an upper permanent magnet, a magnetism isolating plate, a piston, an excitation coil winding, an electromagnetic induction coil fixing rod and an electromagnetic induction coil. A control box is arranged on the outer wall of the cylinder barrel, the vibration damper controller is arranged inside the control box, and a rectifier, a storage battery charging circuit, a first controllable constant current source circuit and a second controllable constant current source circuit are further arranged inside the control box. The invention further discloses a control method of the piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper. The piezoelectric and electromagnetic induction dual energy feedback type magneto-rheological vibration damper has the piezoelectric and electromagnetic induction dual energy feedback function, can achieve not only a damping change function but also a rigidity change purpose, and has good vibration damping performance.

A drive control system for a moving device such as a vehicle uses a dynamic force vector program that is hosted by a computer on the vehicle. Variable controllers receive input from the computer that automatically adjusts drive and slave motors which in turn propel an associated drive member so as to maximize efficiency of the operation of the vehicle in various terrain conditions. Sensing devices provide continuous load and condition parameters to the computer that in turn adjusts the torque outputs for the variable controllers which in turn dynamically adjusts the vehicle's operation based on current operating conditions.

The invention discloses a novel cascaded three-phase bridge converter and belongs to alternating current (AC) / direct current (DC) converters. The converter comprises three-phase AC power supplies, three input inductors and three cascaded three-phase voltage type bridge converters, wherein the three-phase AC power supplies are in star connection and do not have a neutral line. A voltage stress of a switching tube is reduced by using a connection mode of cascaded superposition of three-phase input line voltages, so the converter is applicable to high-voltage and high-power level occasions; and when three-phase input power supplies are unbalanced, inter-phase energy can be compensated for each other, so DC output voltages of each three-phase bridge are automatically equalized. By using cascade connection between bridge arms of the three-phase bridges, compared with a three-phase cascaded converter which is cascaded in same level (m level) and consists of single-phase H-bridge cascaded converters, the novel cascaded three-phase bridge converter has the advantage that: six active switching tubes and m+1 output capacitors are eliminated, so the cost and volume of the converter are reduced.

The invention provides a preparation method of spherical titanium-alloy powder for 3D printing, relates to a method for manufacturing 3D printing consumables, and aims at solving the technical problems that existing Ti-6Al-4V alloy powder is nonuniform in particle size and irregular in shape, and cannot meet the usage requirement of 3D printing. The method comprises the steps that Ti powder and alloy powder of contained elements are added into a ball mill for ball milling according to components of titanium alloy, and titanium-alloy powder is obtained; and the titanium-alloy powder is screened and conveyed to thermal plasma spheroidizing equipment for plasma spheroidizing in hydrogen-containing gas, and the spherical titanium-alloy powder for 3D printing is obtained. According to the spherical titanium-alloy powder, the particle size is smaller than or equal to 100 micrometers, the spheroidization degree is larger than 95%, and the spherical titanium-alloy powder can be applied to the field of 3D printing manufacturing.

An improved automatic loudness control system and method comprise controlling gain / attenuation applied to an input audio signal and providing an output audio signal that is the amplified / attenuated input audio signal; evaluating an actual loudness of the input audio signal from the input audio signal and a desired loudness of the input audio signal from a volume control input; and evaluating the gain / attenuation applied to the input audio signal from the actual loudness and the desired loudness of the input audio signal.

A light transmission module of tunable positive-governing type consists of tunable positive-governing laser, positive-governing control circuit, automatic light power control circuit, automatic temperature control circuit, laser switch control and performance detection circuit. It is featured as enabling to realize parameter calibration, on-line regulation and performance parameter diagnosis of digitalization module by leading in micro control unit and nonvolatile digital potentiometer.

A method for controlling fossil fuel fired heating systems according to an improved adaptive cyclical control method when operating on backup (auxiliary DC) electrical power. Battery life is prolonged when used in conjunction with such improved method. Operating characteristics of the heating equipment and home or building being heated are monitored and stored in electronic memory during normal periods of operation when grid power is available. These characteristics are used to create control algorithms that are in turn specific to the system, as defined by the heating equipment and conditioned space. When the grid power is lost the control algorithms select the optimal heating mode, determine optimal cycle duration, and estimate the time to exhaustion of the remaining backup power. Operation is divided into sequential modes. When a prolonged low voltage period is detected, the backup power control initiates a short-term preliminary energy conservation mode. As the outage persists, the control transitions to intermediate and long-term energy conservation modes until the backup power is exhausted or grid power is restored.

The invention relates to a bionic squirm type pipeline travelling mechanism and a control method thereof. The travelling mechanism is characterized in that a forebody section radial support unit and an afterbody section radial support unit are symmetrically arranged on the two ends of a middle axial input unit; a periodicity intermittent radial breathing motion between the radial support unit andthe inner wall of a pipeline and a periodicity intermittent axial stretching motion of the middle axial input unit are adjusted, and the travelling mechanism imitates motion gait and a rule of a wormsomite in the pipeline to walk in a squirm manner; and the travelling mechanism can replace labour to carry out different pipeline job tasks through carrying corresponding instrument, and missions ofvertical underground mine disaster detection and rescue and the like can be implemented. The travelling mechanism provided by the invention has the advantages of simple compact body, reliable stable operation, easiness in control, cheap manufacturing cost, and can be suitable for multiple occasion applications and the like.

In a robot having at least one rotating joint (which may have at least two degrees of freedom), in order to perform a high-speed switching operation between a closed link mode and an open link mode with the outside world or a working object, each limb is provided with minimum-required, passive degrees-of-freedom (such as a backlash of a reducer) for removing a dynamic closing error and also the movable range of the limb is properly controlled. Even when an actuator for driving the corresponding joint has no means for obtaining a torque signal, a high-speed switching operation between the closed link mode and the open link mode can be stably achieved.

Aiming at the characteristics of high non-linearity, strong coupling property, time variation, large lag, serious uncertainty and the like in a sewage treatment process, the invention provides an adaptive control method based on a recurrent neural network (RNN) model, thereby realizing the control on the concentration of dissolved oxygen (DO) in the sewage treatment process. In the control method, an RNN is used for modeling the sewage treatment process so as to feed the concentration of the DO in the sewage treatment process back to a controller in real time, thus the adaptive ability of thecontroller is improved, and the DO can quickly and accurately reach the expected requirement. The method provided by the invention solves the problem that the current method based on switching control and PID (Proportion Integration Differentiation) control has poor adaptive ability. Experimental results show that the method can quickly and accurately control the concentration of DO, has strongeradaptive ability, improves the sewage treatment quality and efficiency, lowers the sewage treatment cost, and promotes the high-efficiency stable operation of a sewage treatment plant.

The invention relates to a control method for improving the low voltage ride through capability of a wind power plant. According to the invention, a voltage value of a grid-connection point at the wind power plant side is detected in real time and compared with a given reference value of the grid-connection point voltage, a difference value is subjected to conventional calculation of a PI controller, and a total reactive value required by a power grid is acquired. Meanwhile, DFIG direct current bus voltage is monitored and compared with a given value so as to control switching of a direct current unloading resistor, maintain the stability of the direct current bus voltage and prevent rotor side overcurrent, thereby reducing the actuating probability of a double-fed fan. Reactive power distribution is judged and realized among a grid-side converter, a double-fed fan stator-side converter and a VSC-HVDC wind power plant-side converter through acquiring rotor-side rotor protection actuating signals of the double-fed fan, so that the wind power plant is ensured to acquire enough reactive compensation when facing various faults with different severities, the transient voltage stability of the wind power plant is maintained, the actuating probability of the double-fed fan is reduced, the fault recovery time is shortened.

The invention relates to a method for controlling an automatic leveling system of a special vehicle. By adjusting the lifting of an electric jack, the automatic leveling of the vehicle under specific conditions is realized. When an automatic leveling command is sent to a controller, a control system enters an automatic leveling program; a microprocessor sends a signal to a drive circuit to drive a motor to make four brackets landed; and related data of the current inclination condition of the vehicle detected by a double-shaft inclination angle sensor and an angle value of a pre-calibrated balance state are compared, if horizontal error exceeds the allowed range, according to the stroke magnitude of the four electric jacks, the microprocessor generates a control signal according to a definite leveling method to make the jacks move up and down so as to drive the inclination angle of the vehicle to change in opposite directions and finally achieve the aim that the leveling of the vehicle meets the precision requirement. The control method is simple and convenient and easy to realize, has the advantages of high leveling precision, stable work, reliable performance and low hardware resource requirement, and greatly lowers the product cost.

The invention aims to provide a control method for an inverter and the inverter. The inverter is used in two three-phase alternating-current motors including the first motor and the second motor at the same time. The inverter comprises five sets of inverter bridge arms, a current sampling device and a hysteresis controller. The output end of the first set of inverter bridge arms is connected with a U-phase winding of the first motor. The output end of the second set of inverter bridge arms is connected with a V-phase winding of the first motor. The output end of the third set of inverter bridge arms is connected with a U-phase winding of the second motor. The output end of the fourth set of inverter bridge arms is connected with a V-phase winding of the second motor. The output end of the fifth set of inverter bridge arms is connected with the W-phase winding of the first motor and a W-phase winding of the second motor. The current sampling device is used for sampling a current. The hysteresis controller is connected with the current sampling device and the control ends of the five sets of inverter bridge arms and is used for obtaining the objective current and the output current of each phase winding of the two three-phase alternating motors and sending corresponding pulse control signals to the five sets of inverter bridge arms through hysteresis control according to the output currents and the objective currents.

The invention discloses a method for improving the separating property of a reverse osmosis composite membrane. The method comprises the following steps: preparing a reverse osmosis membrane by interfacial polymerization to aqueous solution of m-phenylene diamine and normal hexane solution of trimesoyl chloride on a supporting membrane, adding a quaternary ammonium salt phase-transfer catalyst into the aqueous solution of the m-phenylene diamine to accelerate the reaction of the interfacial polymerization and improve the crosslinking degree of a polyamide polymer so as to obtain the reverse osmosis composite membrane which has good hydrophilicity, good mechanical stability, thermal stability and hydrolytic stability. The operation process of the method is simple and convenient, and the method for adding the phase-transfer catalyst and the added quantity are easy to control, thereby bringing great convenience to industrial production.

The invention discloses a control method and a system of a lithium battery pole piece rolling mill based on a digital twin technology. The control method comprises the steps of: establishing a lithium battery pole piece rolling mill digital twin virtual model, achieving correlation of a digital space and a physical space through a novel rolling mill control system, and effectively enhancing the visualization degree when the rolling mill is operated by virtue of the constructed digital twin body to promoting the improvement of the actual control strategy and prediction and diagnosis of fault conditions. The control system comprises a control unit formed by a main control system, an information collection module, a drive module and an information transmission module, and is achieved in a mode of an embedded development board. The control method and system perform prediction of the processing process in advance to optimize the processing parameters to allow the actual processing result to meet a processing quality requirement and change the current situation that the existing control method is too lagged is changed.

An improved aircraft includes a thrust source, a wing, and a boom functioning as a “free lever” and having a distal end upon which the thrust is acting and a proximal end about which the boom is freely rotatable to balance forces acting on the proximal and distal ends of the boom. The proximal end is pivotably mounted at or below the center of lift of the wing and above the center of mass of the aircraft. The distal end is located above the center of mass of the aircraft, when the lever is in the vertical position to establish a gravity pendulum, and forward of the center of drag of the aircraft, when the lever is in the horizontal position, to establish a drag pendulum. All transition flight is a resolution of the force vectors of the two pendulums. A director adjusts the vertical and horizontal thrust components of the propulsion system.

The invention discloses a rear testing controlled algorism in controlling domain, which is characterized by the following: choosing energy-saving control of central air-condition as checking object; making the system operate under the condition of insufficient prior knowledge; auto-optimizing parameter according to specific operating environment with controller; realizing parameter one time design before spreading the controller; self-adapting environment of the controller in using course; reaching optimizing control; realizing control goal to save electric power. This invention uses empirical control data given by engineer completely, which resolves the problem of discontinuous control for high order non-linear.