8results about How to "Weakened control" patented technology

The present application relates to a kind of biodegradable hydraulic oil composition and its preparation method, it includes the following weight parts of component: biodegradable base oil 96.0-98.5 parts and composite detergent 1.5-2.5 parts;The base oil is the mixture of pentaerythritol tetraester and trimethylolpropane triester, fatty acid chain is C8-C10 saturated fatty acid, saturation ≥90%, 28 days biodegradability meets the determination of OECD 301B;The composite detergent includes: octylated diphenylamine 0.45-0.90 parts, 2,6-di-tert-butyl-4-methylphenol 0.10-0.25 parts, 2-ethylhexyl acidic phosphate and its ethanolamine salt 0.60-1.20 parts, dodecenyl succinic acid di (2-ethylhexyl ester) 0.15-0.35 parts, and the mass ratio of octylated diphenylamine and 2,6-di-tert-butyl-4-methylphenol is 1.5:1~4:1.

The present application relates to the field of program control technology, and in particular to a method for intelligent watering control for road sanitation. The method comprises the following steps: obtaining an image sequence of pedestrians on a predetermined watering path through a camera; judging whether the pedestrians are pulling their pets through a preset target recognition model according to the image sequence of the pedestrians; if there is a pedestrian pulling his pet, marking the pedestrian pulling the pet as a puller, and starting to execute the predetermined pre-watering control action in advance when approaching the puller, so as to reduce the interference of the pulled pet on the puller. The method for intelligent watering control for road sanitation provided by the present application can better avoid pedestrians on the road.

The invention provides a dynamic control method and system for a steam power system, and relates to the technical field of steam power systems. The method comprises the steps that the steam power system is divided into a plurality of control subsystems, and input information and output information of the control subsystems are determined; respectively establishing a plurality of subsystem linear model families based on the development degrees of different control subsystems; obtaining a corresponding controller sequence according to the subsystem linear model family; respectively inputting current input information into the control subsystem and the subsystem linear model family to correspondingly obtain a physical output quantity and a model output quantity; obtaining an arbitration vector according to the physical output quantity and the model output quantity; and selecting an optimal controller from the controller sequence based on the arbitration vector, and realizing dynamic control of the steam power system by using the optimal controller. According to the method, the problems that the steady-state control precision of the steam power system is weakened and the dynamic response performance is reduced due to development of equipment characteristics of the steam power system in a long life cycle are solved.

The invention provides a wing gust mitigation control method based on combined plasma excitation, and belongs to the technical field of aircraft gust mitigation control. The control method comprises the following steps: S1, acquiring an aerodynamic characteristic curve of the wing; s2, a first installation position is determined based on the aerodynamic characteristic curve obtained in the step S1, and a first plasma exciter is installed at the first installation position; s3, determining a second mounting position based on the aerodynamic characteristic curve obtained in the step S1, and mounting a second plasma exciter at the second mounting position; and S4, a gust signal of the wingtip or the nose of the unmanned aerial vehicle is obtained, and the first plasma exciter or the second plasma exciter is controlled to operate according to the gust signal. Induced jet flow is generated on the surface of the wing through the plasma exciter and acts on an airflow field on the surface of the wing, aerodynamic force fluctuation of the wing is controlled, gust load is slowed down, and hang time is prolonged.

The invention provides a micro-grid fixed time dynamic event trigger control method based on an observer, and belongs to the technical field of micro-grid operation control. The control method comprises the following steps: judging whether the voltage and frequency of primary droop control of a power control variable of an ith DG unit in the time-delay island micro-grid deviate from reference values or not, if so, performing secondary control, and if not, performing secondary droop control; by designing a voltage recovery variable, a frequency recovery variable and an active power recovery variable of micro-grid fixed time dynamic event trigger control based on an observer, the output voltage and the output frequency of a distributed generator are recovered to reference values within convergence time. According to the optimization method, the fixed-time dynamic event triggering observer with the confidence factor observes the transmission delay state, the adverse effect of delay on the control performance is limited, operation of each DG unit in the micro-grid is coordinated, the control performance of the micro-grid is guaranteed, and the stability of the system is improved.

The invention discloses a driving transistor, a micro-display pixel driving circuit and a forming method thereof. The circuit forming method comprises the following steps: forming a driving active region; and forming a driving gate structure on the driving active region, wherein at least partial region of the driving gate structure is not doped with the first doping ions. The threshold voltage is increased and the saturation current is reduced by increasing the sub-threshold swing S, and the controllable voltage range gamma can be increased by increasing the sub-threshold swing S of the driving transistor because the driving transistor does not need high saturation current. According to the technical scheme, by reducing the doping amount of the first doping ions in the driving gate structure and weakening the control capability of the driving gate structure on the channel region, the subthreshold swing S of the driving transistor is increased so as to increase the controllable voltage range gamma, design of a compensation circuit is facilitated, and the display effect is improved. The doping amount of the first doped ions can be adjusted only by adjusting the original photomask structure, the photomask structure does not need to be added, and the manufacturing cost is effectively controlled.

This invention provides an integrated method for controlling the converter furnace mouth and its application. The method includes the following steps: S1. Structural optimization: synchronously performing adaptive adjustments to the water-cooled furnace mouth diameter expansion and furnace hood length to form a smooth charging channel; S2. Charge preparation: preparing magnesia-based supplementary charge with specific particle size and composition; S3. Charge supplementation: when the tapping angle reaches -80° to -85°, directionally supplementing the charge to the critical area of ​​slag impact; S4. Feedback control: dynamically adjusting the supplementation amount based on real-time monitoring of the furnace lining condition; S5. System fine-tuning: performing closed-loop fine-tuning of structural parameters and supplementation strategies based on slag runoff and charging cycle data. This method integrates and solves the technical problems of long main raw material charging cycles and severe slag runoff at the furnace mouth during tapping, effectively improving converter production efficiency, reducing molten steel loss, and improving the production environment.

The embodiments of the present application provide a chip packaging structure and an electronic device, which relate to the field of chip packaging technology and are used to improve the thermal contact reliability between the thermal interface material and the chip and the heat dissipation cover. The chip packaging structure includes a packaging substrate, at least one chip, at least one internal thermal interface layer and a heat dissipation cover. The heat dissipation cover includes an upper cover and a plurality of side walls. The upper cover includes at least one boss structure and a first connecting structure. A boss structure is in contact with at least one internal thermal interface layer and is connected to the side wall through the first connecting structure. The maximum thickness of the boss structure is greater than the maximum thickness of the first connecting structure, and the boss structure is away from the surface of the chip and protrudes from the surface of the first connecting structure away from the chip. The boss structure can reduce the gap between the heat dissipation cover and the heat dissipation device, so that the heat dissipation device can effectively exert pressure on the boss structure, reducing the probability of delamination between the internal thermal interface layer and the chip.