This paper describes a part of the development of an adaptive autonomous machine that is able to move in an unknown world extract knowledge out of the perceived data, has the possibility to reason, and finally has the...
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作者：
Tamaki, KMatsuoka, YUno, MKawano, THitachi
Ltd. Received his Master's degree in 1986 in Electrical Engineering from Keio University. He joined Hitachi
Ltd. in April of the same year. He is engaged in research and development of automatic production facilities particularly in research and development of servo control systems and signal processing systems. He is currently an Engineer at the company's Production Engineering Research Laboratory. He is a member of the Society of Instrument and Control Engineers and IEEE. Graduated in 1991 from the Department of Production Engineering of the Faculty of Engineering
Yokohama National University and joined Hitachi Ltd. He is engaged in research and development of automatic production facilities particularly in research and development of signal processing systems. He is currently working at the company's Production Engineering Research Laboratory. Received his Master's degree in 1975 in Precision Engineering from Shizuoka University
and then joined Hitachi Ltd. He is engaged in research on automatic adjustment and assembly technologies as well as development of their equipment. He is currently a Senior Engineer at the company's Production Engineering Research Laboratory. He is a member of the Japan Society of Mechanical Engineers and the Japan Society for Precision Engineering. Graduated in 1961 from the Department of Mechanical Engineering
Tohoku University. He received his Ph.D. degree in Mechanical Engineering from Tokyo University in 1993. He joined Hitachi Ltd. in October 1970. He is engaged in research and development of automatic assembly technology and assembly equipment as well as inline process technology and process equipment. Since 1995 he has been with Ishinomaki Senshu University where he is currently a Professor. He is a member of the Japan Society of Mechanical Engineers and the Japan Society for Precision Engineering.
This paper presents a new discrimination procedure of signal waveforms based on wavelet theory for the inspection of rotating machinery. The wavelet transform decomposes signals into time-frequency space, rather than ...
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This paper presents a new discrimination procedure of signal waveforms based on wavelet theory for the inspection of rotating machinery. The wavelet transform decomposes signals into time-frequency space, rather than mere frequency space, limited by the uncertainty principle. This decomposition permits time-frequency analyses and provides a more flexible means of signal processing than before. To examine a rotary compressor pump, particular waves in the rotational load torque signals that correlate with failure modes are discriminated from one another and evaluated. To extract the focal waves, the signal is decomposed with wavelets and then only particular waves, such as impulses, are reconstructed from a selected set of wavelet coefficients. This is called time frequency space filtering. The wavelet local modulus maxima are used to pen a time-frequency window through which only the focal waves can pass with high fidelity. The maxima have information of the inflection points of the wave at each resolution that represent its waveform. The experimental results show the effectiveness of the procedure.
This paper aims initially to present an identification method for constructing an interval model which can be aggregated to robust control design. Mathematical programming is used as a tool to achieve this goal. We, t...
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This paper aims initially to present an identification method for constructing an interval model which can be aggregated to robust control design. Mathematical programming is used as a tool to achieve this goal. We, then, formulate necessary conditions for robust stability of continuous and discrete interval plants and seek low order controller candidates for both cases. Decision making strategies based on Kharitonov and Mansour-Kraus results are proposed to effectively construct and solve standard linear programming problems instead of interval ones. The so obtained candidates are cheked for guaranteed robust stabilizers using (generalized) edge or box theorems
The Hungarian People's Republic is an East European country whose educational systems are not well known all over the world. This article presents a short survey of Hungary's historic background and her educat...
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The Hungarian People's Republic is an East European country whose educational systems are not well known all over the world. This article presents a short survey of Hungary's historic background and her educational system. The organization of the BTU /Budapest Technical University/ and faculty of electricalengineering are discussed in detail. In the second part of the article the export archievements of the Hungarian educational systems are discussed.
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