In this paper, the speed control method based on Quanser intelligent data acquisition board is adopted, and the structure and working principle of Quanser intelligent data acquisition board are analyzed. This control ...
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Gravure register system is a uncertain system with multi-input-output, non-linear and strong coupling, according to two-color printing register system working principle, a mathematical model of two-color register erro...
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Gravure register system is a uncertain system with multi-input-output, non-linear and strong coupling, according to two-color printing register system working principle, a mathematical model of two-color register error in shaftless driving mode is established, and extended to four-color register error model further more. Aiming to this model, an active disturbance rejection control (ADRC) controller and control system for gravure register are designed, then the simulation system is build also. The simulation results show that the designed register control system is able to realize a high precision control for the multi-color register system, this provides a viable option for gravure printing register system which meets to the requirements of high precision, high speed and low reject rate. (C) 2020 The Authors. Published by Elsevier B.V.
The electromagnetic system is driven by multiple programmable power supplies manipulating the micro-robot. Robot movement is observed and analyzed through CCD camera in real time. Thus, the driven force could be adjus...
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Cognitive radios with their intelligent mechanisms of avoiding interference and their ability to automatically discover and utilize unoccupied spectrum have frequently been proposed for pervasive wireless deployments....
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ISBN:
(纸本)9781424416523
Cognitive radios with their intelligent mechanisms of avoiding interference and their ability to automatically discover and utilize unoccupied spectrum have frequently been proposed for pervasive wireless deployments. In recent years, a variety of control algorithms managing such cognitive radios have been developed, following many different types of strategies and implementing the whole range from centralized control to distributed control principles. As future wireless deployments are expected to be very dense, the ability of a cognitive radio control algorithm to scale well to large network sizes becomes crucial. In this paper, we review and discuss a wide variety of previously proposed algorithms for managing cognitive radio networks. For each of these algorithms, we theoretically analyze performance in pervasive, dense deployments and compare their ability to scale.
An automatic feeder for poultry farm with digital display, adjustable temperature and humidity and timing function. It is mainly composed of feeding mechanism, feeding mechanism, travel mechanism, temperature humidity...
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An automatic feeder for poultry farm with digital display, adjustable temperature and humidity and timing function. It is mainly composed of feeding mechanism, feeding mechanism, travel mechanism, temperature humidity and electrical control box with digital display, can display 24 hours, and with time setting function, in the case of a single intervention to perform automatic feeding work, reduces the labor cost, not only can reduce the time of staff contact with poultry, reduce the spread of disease. With a temperature humidity sensor at the same time, the real-time monitoring and display of breeding field numerical, temperature and humidity can be set to allow upper and lower limits of temperature and humidity fluctuations, and according to the set point control spraying water pump, fan, or heating equipment synchronization work, simplifies the operation of separation equipment, precise control of the feeding environment of temperature and humidity value, achieve the goal of the poultry feeding scientifically. (C) 2020 The Authors. Published by Elsevier B.V.
In order to achieve the automation and intelligence of hydrogen peroxide low temperature plasma sterilization cabinets, this article uses industrial intelligent gateway to achieve the collection and processing of PLC ...
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With the development of science and technology and the advancement of society, the demand for talents by institutions has been continuously improved, and new demands have been placed on the technical capabilities of t...
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With the development of science and technology and the advancement of society, the demand for talents by institutions has been continuously improved, and new demands have been placed on the technical capabilities of talents. The higher vocational colleges are the most cradle for cultivating a new generation of electrical talents. The teaching strategy must be synchronized with the development of the times. The pursuit of the overall ability of the students should be improved, and the teaching mode of teaching, learning and integration should be realized. Practice is the sole criterion for testing students. In turn, the teaching results of higher vocational colleges will be improved, and the trainees will be trained in all aspects, improve their own professional knowledge and practical ability, and open a new chapter in electric power teaching. (C) 2020 The Authors. Published by Elsevier B.V.
Flexible manipulators with high-speed, high-load, and low-cost arise with the requirement of lightweight manipulators in aerospace, construction, manufacturing industry, etc. Lightweight flexible links make manipulato...
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ISBN:
(纸本)9781728112985
Flexible manipulators with high-speed, high-load, and low-cost arise with the requirement of lightweight manipulators in aerospace, construction, manufacturing industry, etc. Lightweight flexible links make manipulators more feasible in many ways. However, their dynamic modeling and controller design are quite complex. Firstly we illustrate the model of single-link flexible manipulators. Then, by analyzing the manipulator energy, a nonlinear controller is designed, which can effectively control the system, that is, to make the rotation angle of manipulators rotate to a given angle while suppressing the vibration of manipulators. Furthermore, through rigorous and detailed theoretical analysis, it is concluded that the closed-loop system is asymptotically stable. Finally, we utilize some simulations to validate the control performance of the controller.
Using the "DORATASK" method [1], analysis the characters of the Airspace Planning under the current situation of civil air transportation. Improve the traditional Single-evaluation model which just considers...
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Today, there are many needs to replace or maintain many plants built in the 1960s. However, it is difficult to replace or maintain them, because the documents of installed sequential control logic are seldom remain. T...
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ISBN:
(纸本)3540663320
Today, there are many needs to replace or maintain many plants built in the 1960s. However, it is difficult to replace or maintain them, because the documents of installed sequential control logic are seldom remain. Therefore, we propose an automatic regeneration method(SPAIR) in order to solve this problem. SPAIR regenerates sequential control logic that is expressed on a ladder diagram from the input and output data of a target control unit, and its supplementary specifications, which indicate the information about timers, etc. SPAIR consists of two parts, namely basic logic inferring engine and interior coil logic inferring engine. In basic logic inferring engine, time series data is compressed and translated into training data using the specifications. The training data are processed by inductive learning and transformed into control logic. In the interior coil logic inferring, the target logic of the interior coil is acquired by the selective attachment of logic parts.
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