In the paper, aiming at the question of knowledge discovery of the large quantities of time-series data in continuous flow supply chains, the project of KDD based on integrated information is presented and a time-dela...
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ISBN:
(纸本)0780375084
In the paper, aiming at the question of knowledge discovery of the large quantities of time-series data in continuous flow supply chains, the project of KDD based on integrated information is presented and a time-delayed NN is applied. Under the premise of integration of the network data, a Visual Basic program is used to distill data and a VB engine is cited, NNET tools of MATLAB are utilized to find the pattern of time-series, forecasting the rules of data, and supervising the optimal operation of a supply chain.
Walking mechatronic systems protected much better the environment when their contact with the soil is discrete, a fact that limits appreciately the area that is crushed. In order to make and to control a walking robot...
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Walking mechatronic systems protected much better the environment when their contact with the soil is discrete, a fact that limits appreciately the area that is crushed. In order to make and to control a walking robot, one needs the knowledge of all walking potentialities since the choice of the number of legs as well as of their structures depend on the type of gait that has been selected. In the Mobil robots Laboratory of the POLITEHNICA University of Bucharest, a four-legged modular mechatronic system has been built and tested, while a hexapod one is being tested.
Future welfare models should meet the needs of a large group of aged and disabled people. Present research and technology efforts in this direction are oriented toward the development of highly effective home-installe...
Future welfare models should meet the needs of a large group of aged and disabled people. Present research and technology efforts in this direction are oriented toward the development of highly effective home-installed devices which will provide the user with continuous assistance in different everyday activities. The problems and needs of the elderly and the disabled vary from person to person over a large range, and with many serious requirements. Modern designs for such devices are oriented toward solutions where the user is less engaged in the control process, and the interaction between the device and the user ishuman-friendly, i.e., the devices should possess a high level of intelligence in their controls, actions, and interactions with the user, offering him/her a high level of comfort and functionality. This paper considers a mixed control mode as a better alternative for human-machine interactions for users with great movement disability. Some examples of easy direct control are discussed.
In teleoperation, it is important for an operator to feel as if he really were in a distant place. To realize this objective, the various information from a remote site must be presented to the operator. Even though t...
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In teleoperation, it is important for an operator to feel as if he really were in a distant place. To realize this objective, the various information from a remote site must be presented to the operator. Even though tactile information is very important to execute a task efficiently, it is not yet sufficiently provided for the operator. We propose a mechanism that can provide more dexterous tactile information to the operator. This device utilizing electromagnetic force is designed to be compact and light enough to attach to the fingerpad, and designed to be controlled continuously. The magnetic circuit is derived by the probable flux paths method in order to take forces at any given dimension. An optimization technique is also proposed to maximize the tactile force that humans can perceive under the same conditions. It is demonstrated that, by optimization, the tactile force increases by 24%, compared with that obtained from the initial design.
Various alternative aircraft inspection methods are first discussed and advantages of using robots are analysed. ANDI (Automated NonDestructive Inspector) and CIMP (Crown Inspection Mobile Platform) are then described...
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Various alternative aircraft inspection methods are first discussed and advantages of using robots are analysed. ANDI (Automated NonDestructive Inspector) and CIMP (Crown Inspection Mobile Platform) are then described. Remote 3D stereoscopic visual inspection is outlined and algorithms developed for crack detection and surface and subsurface corrosion detection are described. Future development trends are also outlined.
During an assembly operation it is necessary to locate an object precisely by means of point contact fixtures. These fixtures must secure the object during the assembly while also allowing easy access into and out of ...
During an assembly operation it is necessary to locate an object precisely by means of point contact fixtures. These fixtures must secure the object during the assembly while also allowing easy access into and out of the fixturing system before and after the assembly without totally dismantling the entire fixturing system. The method of analyzing fixturing points of H. Asada and A.B. By (IEEE J. robotics and Automation, ***-1, no.2, p.86-94, 1985) is extended to develop formal mathematical techniques to determine the state of a workpart in the fixturing system. These techniques consist of performing an optimization to determine whether the part is fixed in the fixture or to determine the optimal directions in which to move the part into or out of the fixturing system. An example is given to illustrate the effectiveness of the methodology
作者：
GILBERT, EGHA, IJDepartment of AeroSpace Engineering
Robot Systems Division University of Michigan Ann Arbor MI USA Computer
Information and Control Engineering Program Robot Systems Division College of Engineering University of Michigan Ann Arbor MI USA
A control problem involving a mechanical system with generalized coordinates q ∈ R m is considered. The error in tracking a desired input y d ∈ R p is e = E (q,y d )∈ R m . If E satisfies simple conditions, ...
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A control problem involving a mechanical system with generalized coordinates q ∈ R m is considered. The error in tracking a desired input y d ∈ R p is e = E (q,y d )∈ R m . If E satisfies simple conditions, it leads to a nonlinear control law that assures e (t)→0 as t →∞. The law is robust in that small changes in it do not produce large steady-state errors or loss of stability. In this theory a unified framework is presented for treating a number of problems in the control of mechanical manipulators.
Austenitic stainless steels (A-SS) are extensively used in widespread industrial and technological applications due to their good corrosion resistance combined with their relatively high strength, toughness, and stiff...
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