According to the problem of being hard to achieve precise management of production in the actual production environment, RFID tags are used to identity production materials and RFID readers are placed at some importan...
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Due to adopt manual startup standby generator set in society,operating personnel can't immediately start the standby generator set after the power failure *** at this problem,a scheme of the standby generator set ...
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Gaining high mobility on versatile terrains is a crucial target for designing a mobile robot toward tasks such as search and rescue, scientific exploration, and environment monitoring. Inspired by dextrous limb motion...
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Gaining high mobility on versatile terrains is a crucial target for designing a mobile robot toward tasks such as search and rescue, scientific exploration, and environment monitoring. Inspired by dextrous limb motion of animals, a novel form of locomotion has been established in our previous study, by proposing an eccentric paddle mechanism (ePaddle) for integrating paddling motion into a traditional wheeled mechanism. In this paper, prototypes of an ePaddle mechanism and an ePaddle-based quadruped robot are presented. Several locomotion modes, including wheeled rolling, legged crawling, legged race-walking, rotational paddling, oscillating paddling, and paddle-aided rolling, are experimentally verified on testbeds with fabricated prototypes. Experimental results confirm that paddle's motion is useful in all the locomotion modes.
This paper considers the reduced-order observer design problem for one-sided Lipschitz nonlinear systems with unknown inputs. The systems under consideration are a larger class of nonlinear systems than the well-studi...
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ISBN:
(纸本)9781479947249
This paper considers the reduced-order observer design problem for one-sided Lipschitz nonlinear systems with unknown inputs. The systems under consideration are a larger class of nonlinear systems than the well-studied Lipschitz systems and have inherent advantages with respect to conservativeness. For such systems, we propose a reduced-order unknown input observer(UIO) by using the linear matrix inequality(LMI) technique. Sufficient conditions that guarantee the existence of the reduced-order UIO are established and transformed into the format of LMIs via using the matrix generalized inverse *** results are finally given to illustrate the effectiveness of the proposed design.
The relocation function is frequently used in the application of Laser Tracker. However, in large component assembly, since the laser tracker would be blocked by the largesize component, the number and distribution of...
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ISBN:
(纸本)9781467396769
The relocation function is frequently used in the application of Laser Tracker. However, in large component assembly, since the laser tracker would be blocked by the largesize component, the number and distribution of fiducial points can hardly meet the requirement of laser tracker relocation, resulting in a low relocation accuracy. To solve this problem, we present a new laser tracker relocation method based on survey adjustment, which reduces the fiducial point location error by survey adjustment, thereby improving the laser tracker relocation accuracy. Simulations show that the proposed method improves the laser tracker relocation accuracy clearly especially in large component assembly.
Based on the analysis of the grinding model and grinding process of ball nut, the grinding process software for ball nut is developed by using VB programming language and Access database technology. Afterwards, the so...
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Internal lubrication condition affects dynamic characteristics of rolling ball bearing in operation. According to the calculating problem of the elastic fluid lubricant film stiffness in point contact zone, the oil-fi...
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This paper introduces a framework which can advance traditional building auditing and energy management methods in terms of cost, convenience of automatic and remote data (e.g., 3D geometry and thermal values) collect...
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This paper introduces a framework which can advance traditional building auditing and energy management methods in terms of cost, convenience of automatic and remote data (e.g., 3D geometry and thermal values) collection, system control, and comprehension and dissemination of results using a proposed cloud-based software as a service (CSaaS) system as a decision support tool. The decision support tool can help decision makers improve their buildings by providing reliable and visualized information of the building's energy performance through an easy-to-use interactive virtual evaluation system in a publicly accessible cyberspace. The proposed open decision-support platform is expected to ultimately reduce the public's energy consumption and invigorate the nation's economy by vitalizing sustainable product manufacture and retrofit construction industries.
To solve the interference problem during the grinding process of large lead ball nut, a new forming grinding system based on flexible shaft has been designed in this paper. The paper analyzed and compared with three g...
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In underwater optical wireless communication(UOWC),a channel is characterized by abundant scattering/absorption effects and optical *** previous studies on UOWC have been limited to scattering/absorption ***,experimen...
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In underwater optical wireless communication(UOWC),a channel is characterized by abundant scattering/absorption effects and optical *** previous studies on UOWC have been limited to scattering/absorption ***,experiments in the literature indicate that underwater optical turbulence(UOT)can cause severe degradation of UOWC *** this paper,we characterize an UOWC channel with both scattering/absorption and UOT taken into consideration,and a spatial diversity receiver scheme,say a singleinput–multiple-output(SIMO) scheme,based on a light-emitting-diode(LED) source and multiple detectors is proposed to mitigate deep *** Monte Carlo based statistical simulation method is introduced to evaluate the bit-error-rate performance of the *** is shown that spatial diversity can effectively reduce channel fading and remarkably extend communication range.
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