5results about How to "Guaranteed control quality" patented technology

The application discloses a kind of based on data-driven adaptive cycle engine multivariable sliding mode control method, belong to aero-engine control technical field, this method is based on a certain type of adaptive cycle engine, considering the influence of actuator, based on input, output data, the dynamic linearization data model of engine is established online;Three-variable model-free adaptive sliding mode controller based on sliding mode control algorithm is designed;Adaptive weight factor is introduced, the control conservative problem of controller when the controlled object parameter occurs large-scale change is solved, and the control effect is optimized;Finally, the algorithm designed is used to realize the multivariable steady control of adaptive cycle engine under different modes.The application can solve the problem that traditional sliding mode control of aero-engine depends on accurate mathematical model, ensure the control effect while having good real-time performance.

The embodiment of the invention provides an intelligent server assembling method and device, electronic equipment and a storage medium, and is used for the technical field of Internet of Things. The intelligent server assembly method comprises the following steps: updating an offline simulation model and an online simulation model according to a model structure data set and synchronously acquired real-time state data flow, and performing multi-objective optimization on a mixed production task through the offline simulation model according to received service parameters to obtain a candidate resource allocation data set, and evaluating and screening the candidate resource allocation data set through the online simulation model to obtain optimal resource allocation data, and performing conflict detection and routing planning on the optimal resource allocation data according to the space-time resource constraint set to generate a server assembly adjustment instruction sequence. According to the method, through multi-source real-time perception, candidate generation through offline simulation, online proxy rapid screening and space-time resolution and closed-loop execution, optimal resource allocation and high-precision traceability in the mixed line assembly production process are achieved.

The present application relates to the field of optimal fault-tolerant control of flexible manipulator system, and particularly relates to a dynamic event-triggered optimal fault-tolerant control of flexible manipulator considering time-varying fault. The steps are as follows: firstly, an adaptive observer is designed to estimate the time-varying fault of actuator; secondly, an evaluation neural network considering unknown terms is constructed by using the approximation ability of neural network to approximate the system cost function; then, a Hamilton-Jacobi-Bellman equation is solved to design an optimal fault-tolerant controller of adaptive dynamic programming method, and an approximate optimal control input for ideal trajectory tracking and vibration suppression is realized; at the same time, a dynamic event-triggered mechanism is adopted to determine the triggering time by real-time monitoring of system state and dynamic threshold when the triggering condition is met, so as to reduce the communication bandwidth occupation and computing resource consumption. The present application can ensure the control effect while having the characteristics of fast response and low resource consumption, thereby ensuring the safe and reliable completion of trajectory tracking and vibration suppression tasks of the flexible manipulator.

The invention provides an ALD thin film deposition method and device and ALD thin film deposition equipment. The ALD thin film deposition method comprises the steps that a substrate is rotated by a preset angle, and the edge of the substrate is provided with a notch; carrying out activation pretreatment on the substrate; and carrying out a deposition process on the substrate. According to the method, before a deposition process is carried out on a substrate, the substrate is rotated by a preset angle, and then activation pretreatment is carried out on the substrate; and then the thin film deposition process is carried out, so that the influence of a notch in the edge of the substrate on the deposition uniformity can be avoided, the thickness uniformity of a film layer deposited on the substrate is improved, the precision and quality control of a subsequent manufacturing process of the substrate are ensured, and the performance stability and reliability of a substrate product are improved.

The utility model discloses a pipe section mouth control device for curve pipe jacking, including pipe section body, the pipe section body is provided with the connecting assembly to the opposite face, the pipe section body inside is provided with the embedded steel sheet, the embedded steel sheet inboard welding has the tensioned steel sheet, the embedded steel sheet inboard welding has the first compression steel sheet, the embedded steel sheet inboard welding has the second compression steel sheet, the second compression steel sheet right side is provided with the hydraulic jack, the hydraulic jack output and the first compression steel sheet on another pipe section body are connected, the embedded steel sheet inboard welding has the fixed pin, the fixed pin surface is provided with the pull rod type jack, adopts pull rod type jack, hydraulic jack cooperation, initiatively regulates and control the mouthful, is not affected by the external soil property and the pipe jacking machine overbreak, and the axis control quality is effectively guaranteed, and the high accuracy control curve pipe jacking pipe section mouthful.