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305 results about "Process dynamics" patented technology

Method for processing dynamic gesture identification signal facing (to)television set control

The invention provides a method for processing a signal by dynamic gesture identification for television control, which relates to a signal processing method which detects motion in an image photographed by a television embedded camera, identifies actions of a hand and converts the action to a television control signal (such as channel switching, volume regulation, more complex menu operation and the like). The method comprises the following steps: acquiring a television user action image by the television built-in camera, analyzing the acquired image to acquire a motion region; extracting information of a hand target from the motion region to generate a track; and determining a command corresponding to the track to generate the television control command. The invention provides a method for controlling the television by a dynamic gesture through positioning the hand without manual assistance, which is to acquire a gesture language through a mode of detecting the motion and constructing a multiple objective body-models, and generate the corresponding television control command. The method provides a more improved mode of remote control for the field of gesture language television. The mode of remote control can significantly promote the development of the television application field.
Owner:SAMSUNG ELECTRONICS CHINA R&D CENT +1

Storage mildew-proof and moth-proof packaging hemp cloth and preparation method thereof

The invention provides storage mildew-proof and moth-proof packaging hemp cloth and a preparation method thereof. The hemp cloth comprises green harmless storage protective agent and is prepared by taking common packaging hemp cloth as a material and adding 0.01-10wt% of storage protective agent. The preparation method comprises the following steps of: dissolving the storage protective agent in a solvent to prepare a solution, then impregnating the hemp cloth in the protective agent solution, removing the solution after the hemp cloth sufficiently absorbs the solution, and drying; or dissolving the storage protective agent in the solvent, then uniformly spraying the protective agent solution on the hemp cloth and drying the hemp cloth after the hemp cloth sufficiently absorbs the protective agent solution to prepare the storage mildew-proof and moth-proof packaging hemp cloth. The storage hemp cloth is used for packaging tobaccos or crops, can realize the whole process dynamic and real-time protection of the tobaccos, the crops and the like in purchase, transport and storage processes, protect products from mildew and moths, effectively prevent the mildew and the moths from spreading between bags and prevent the tobaccos, the crops and the like which are soaked by rain water from mildewing. Besides, the invention has an important function for reducing environment pollution and hidden safety danger which are caused by common technologies.
Owner:ZHENGZHOU UNIV

Hybrid electric vehicle work mode switching process dynamic coordination control method

The invention discloses a hybrid electric vehicle working mode switching process dynamic coordination control method. Accelerator pedal depth is acquired by an EMS (engine management system) to obtain required vehicle torque, and an HCU (vehicle control unit) can select a work mode under a current working condition to work according to the required vehicle torque or the actual working condition; by controlling change rate from engine throttle percentage to target throttle percentage, the engaging speed of a clutch is reasonably controlled according to speed differences of an engine and a motor, insufficient dynamic output torque of the engine is offset by the quick response ability and the characteristic of accuracy torque control of the motor, and output torques of the motor and the engine are coordinated and allocated in the mode switching process. According to the technical scheme, the torque output of a hybrid power system is controlled, so as to reduce the dynamic process of the engine; oil consumption is reduced, so as to improve the economical efficiency; great fluctuation of the required vehicle torque is not generated in the mode switching process, so as to improve vehicle riding comfort; wear of the clutch is reduced, so as to ensure power transmission smoothness.
Owner:奇瑞新能源汽车股份有限公司

Whole process dynamic monitoring method for converter steel melting

The invention pertaining to the field of metallurgy and steel-making technology provides a convertor steelmaking whole-course dynamic monitoring method. The whole-course dynamic control of the convertor steelmaking can be realized by adopting a laser gas analyzer and a stock bin port bombing technology, molten steel component and temperature are forecasted continuously and detected dynamically, and the convertor is assisted to perform the end point judgment. The method comprises steps of using a network of computer to monitor the information of charging, jetting and the like; using the laser gas analyzer as the gas signal acquiring and analyzing device in the convertor smelting process; using the bombing device installed at the stock bin port to performing head ejecting to detect information of molten steel component, temperature and the like; acquired parameters are all transferred through the network of computer; the computer continuously forecasts the parameters of molten steel component, temperature and the like by utilizing the above parameters and a built-in control model, and displays the parameters and provides guidance on the user interface.The invention has advantages that the whole-course feedback signals can be obtained, a whole-course dynamic control of the convertor smelting can be realized, variation of temperature and molten steel component can be forecasted continuously, the size of the convertor capability is not limited, and the convertor has characteristics of simple structure, convenient maintenance, small investment and low rate of fault.
Owner:北京北科麦思科自动化工程技术有限公司

Method for processing dynamic spectral data based on single-edge extraction

The invention discloses a method for processing dynamic spectral data based on single-edge extraction, and relates to the field of spectral analysis technology. The method comprises the following steps of: acquiring the all-band photoplethysmographic pulse wave; acquiring an all-band photoplethysmographic pulse wave template by using the all-band photoplethysmographic pulse wave and correcting the waveform of the photoplethysmographic pulse wave with each wavelength so as to eliminate the error introduced by the instability of the waveform of the photoplethysmographic pulse wave with each wavelength; removing single-edge dynamic spectrum comprising gross error by using the average effect of single-edge dynamic spectrums corresponding to a front edge and a rear edge of each pulse period according to a 3sigma rule; and superposing the remaining single-edge dynamic spectrums after the removal of the gross error to obtain dynamic spectral output. The method fully utilizes the acquired spectral data, improves the accuracy of the waveform of the photoplethysmographic pulse wave within each wavelength and each period, has higher accuracy, obviously improves the measurement speed, effectively improves the dynamic spectral signal-to-noise ratio and improves the accuracy of dynamic spectral method-based noninvasive blood component detection.
Owner:TIANJIN UNIV

Method for model mismatching detection and positioning of multivariate predictive control system in chemical process

The invention discloses a method for model mismatching detection and positioning of a multivariate predictive control system in a chemical process. By aiming at the typical hierarchical control system in the traditional process industry, the model mismatching detection and positioning is carried out respectively on a multivariate system and all univariate subsystems in the multivariate system. The method comprises the steps of: acquiring residual errors of the multivariate system in a predicative control layer on the basis of an orthogonal projection method, constructing a monitoring statistic computing engine, and acquiring the residual errors, sensitive to process dynamic characteristic variation only, of the univariate system on the basis of an auxiliary variable identification method.In the invention, closed-loop operation data is adopted directly and additional information of the system is not needed; rapid detection and positioning can be made just by utilizing a small amount of data so that fewer disturbances are made to a working condition; and the mismatching information of process models of all univariate subsystems in the multivariate system can be positioned so as to eliminate the influence of the disturbances. By means of the method disclosed by the invention, the accurate model mismatching information can be obtained rapidly at lower cost, the maintenance cost of the predictive control system can be reduced, the service life of the predicative control system can be prolonged and the gain can be improved.
Owner:ZHEJIANG UNIV
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