In this paper we study a class of continues nonlinear controlsystems associated with the specific sampled outputs. The dynamical model under consideration is described by ordinary differential equations in the presen...
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ISBN:
(纸本)9781467321686;9781467321709
In this paper we study a class of continues nonlinear controlsystems associated with the specific sampled outputs. The dynamical model under consideration is described by ordinary differential equations in the presence of additive bounded uncertainties. We propose a linear-type control design procedure that guarantee robustness property of the closed-loop realization. The proposed design method incorporates a concept of the dynamic feedback controller and a newly elaborated extended version of the classic invariant ellipsoid method. The applicability of the proposed control design scheme is illustrated by a computational example. A brief discussion on the numerical issues is also included.
According to Zigbee wireless communication technology with the characteristics of low cost, low power, low-complexity and short-distance, we designed a wireless home remote controlsystem. Its design is based on micro...
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ISBN:
(纸本)9781467318556;9781467318570
According to Zigbee wireless communication technology with the characteristics of low cost, low power, low-complexity and short-distance, we designed a wireless home remote controlsystem. Its design is based on microcontroller chip CC2430 from TI company and IAR software platform. This paper introduces the system hardware circuit design and the core software algorithm in detail. The test finally shows the system can achieve the wireless remote control in household equipments - lights, doorbell, air conditioning, etc. Some other potential application areas and its direction of development in future are given at last.
In real-time networked controlsystems, the end-to-end path delays on the communication network should be bounded in order to satisfy the stringent timing constraints of physical system. While the packet delivery on a...
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We propose adaptive power control of obstacle avoidance system for visually impaired person. It utilizes multiple ultrasonic sensors to avoid obstacles lying in the path. We evaluate complex structure in front of the ...
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In this paper, a new approach is proposed for hand gesture recognition, that is accomplished by dominant points based hand finger counting under skin color extraction. Skin color detection is used as a preprocessing s...
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ISBN:
(纸本)9780769547633;9781467321389
In this paper, a new approach is proposed for hand gesture recognition, that is accomplished by dominant points based hand finger counting under skin color extraction. Skin color detection is used as a preprocessing segmentation, and the hand gesture contour can be extracted by this mean. After hand segmentation is done, dominant points based algorithm is used for counting hand fingers in this hand gesture controlsystem. The performance and comparison is evaluated in the end as well. Then the hand gesture controlsystem can be implement by fuzzy logical efficiently this way.
Due to the use of standardized information technology from the office world in industrial automation networks, threats concerning such networks become relevant for automation systems. Communication protocols used in a...
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ISBN:
(纸本)9781467347372
Due to the use of standardized information technology from the office world in industrial automation networks, threats concerning such networks become relevant for automation systems. Communication protocols used in automation networks typically provide no security functionalities. In this paper, a public key infrastructure (PKI) for automation networks is proposed that supports the establishment of secured connections between automation components and also supports protective measures against product piracy.
The optimal microalgae growth problem of the photosynthetic factory (PSF) is studied here. The objective is to maximize the photosynthetic production rate (related proportionally to the specific growth rate of microal...
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In this paper, taking a three-phase 12/8 structure SR motor as its control object, the SR motor digital controlsystem is designed based on MCF5213 which integrated the DSP computing power and MCU controller character...
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The anti-lock braking system is a technology for passengers' safety in recently developed sophisticated vehicles. It is a part of the braking system of a vehicle which exhibits controlled braking torque to prevent...
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ISBN:
(纸本)9781467320467
The anti-lock braking system is a technology for passengers' safety in recently developed sophisticated vehicles. It is a part of the braking system of a vehicle which exhibits controlled braking torque to prevent the wheels from locking whenever a hard brake is applied. The highly non-linear dynamics of longitudinal tire force and the uncertain parameters of the vehicle and friction coefficient of the road motivate to use a non-linear robust controller. An efficient sliding mode controller has been proposed here to maintain the slip ratio to an optimum value so that the vehicle stopping without skidding is ensured within minimum possible distance. The non-linear Dugoff's friction model for the wheel has been taken for modeling the quarter car. The chattering phenomena caused by sliding mode have been minimized with an efficient technique. Slip-tracking performance and the robust performance of the proposed controller have been compared with the recent existing non-linear controller.
This paper focuses on the two-robot welding coordination of complex curve seam that one robot grasp the workpiece, the other hold the torch, the two robots work on the same workpiece coordinately. This paper builds th...
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ISBN:
(纸本)9781467321273;9781467321259
This paper focuses on the two-robot welding coordination of complex curve seam that one robot grasp the workpiece, the other hold the torch, the two robots work on the same workpiece coordinately. This paper builds the two-robot coordinate system at the beginning. After that, the non master/slave scheme is chosen for the path planning, the non master/slave scheme sets the poses versus time function of the point u on the workpiece, and calculates the two robot end effecter paths through the constrained relationship automatically. Moreover, Downhand welding is employed which can guarantee the torch and the seams keep in good contact condition all the time during the welding process. Besides, a Solidworks-SimMechanics simulation platform is established, and a simulation of Exhaust Manifold welding is conducted. Finally, the results of the simulation illustrate the welding process can meet the requirements of predefined torch pose planning and the downhand welding. In addition, two advantages of two industrial robot coordinated welding are summarized compared with arc-welding robot and positioning table system.
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