Jansri, Anurak

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Jansri, Anurak
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Jansri, Anuruk
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anurak.ja@kmitl.ac.th

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    On comparison of attractors for chaotic mobile robots
    (2004-12-01)
    Jansri, Anurak
    ;
    Klomkarn, Kitdakorn
    ;
    Sooraksa, Pitikhate
    In case of no map, trajectory planning could be a difficult task for robot motions to navigate around the assigned patrol areas. Chaotic mobile robots that move in chaotic patterns can be used to solve this problem. This paper is motivated by the question in seeking for suitable chaotic pattern for the aforementioned problem. Twenty-five chaotic patterns generated from various chaotic signals for the robot's path are compared by computer simulation under given conditions. © 2004 IEEE.
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    Tree robot: An innovation for STEAM education
    (2016-12-14)
    Sooraksa, Pitikhate
    ;
    Sakorntanant, Sakda
    ;
    Jansri, Anurak
    ;
    Klomkarn, Kitdakorn
    Embracing complexity in today's world makes students impatient to learn following the conventional chalk-and-talk style of teaching, and yet plenty of helpful IT-techniques are available and surrounded. This talk provides a care-and-feeding of STEAM education, namely 'Science, Technology, Engineering, Art, and Mathematics', offering a new way of utilizing matters of natural learning to be 'live'. A tree robot is created as an instrument to help students achieve the 21<sup>st</sup> century learning skills. As a result of many hours in experiments with the proposed pedagogy, the robot helps redefine what attention is and how to use it innovatively.
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    Further investigation on trajectory of chaotic guiding signals for robotic systems
    (2004-12-01)
    Jansri, Anurak
    ;
    Klomkarn, Kitdakorn
    ;
    Sooraksa, Pitikhate
    Chaotic signals have been used and can be generated by a chaotic circuit for controlling trajectories of mobile robots. Application of chaotically robotic systems may be employed for cleaning and patrolling tasks, when information of areas at work is not available. This paper presents an investigation on trajectory of chaotic guiding signals generated by Chua's attractor and Arnold's non-attractor in five given situations. According to the simulation, with best adjusting parameters for both signals, the trajectory generated from Chua's pattern has covered more areas than that of Arnold's counterpart for all testing cases.
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    Design and implementation of continuous microwave biomass carbonization system
    (2012-08-10)
    Payakkawan, Poomyos
    ;
    Areejit, Suwilai
    ;
    Jansri, Anurak
    ;
    Klomkarn, Kitdakorn
    ;
    Aoyama, Hisayuki
    This paper discusses a new design and implementation of a microwave heating for continuous biomass GHz frequency. This new technique is developed to control electromagnetic field distribution inside the microwave heating cavity reactor of biomass carbonization. A chaotic mode pattern microwave generator is used for the technique. The result shows that the technique gives the cost and time-saving, easy to control, and effective performance. © 2012 IEEE.
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    A design of stream cipher based on multi-chaotic functions
    (2004-12-01)
    Klomkarn, Kitdakorn
    ;
    Jansri, Anurak
    ;
    Sooraksa, Pitikhate
    This paper presents the design of a stream encryption algorithm using chaotic functions. Various chaotic functions which are highly sensitive and unpredictable to initial conditions have been tested for used as key a stream. The technique employed multi-chaotic function generation for increasing a complexity of keystream is presented. The result of statistic test of a keystream has been approved. Thus, this encryption technique can be applied to security communication, particularity for multimedia transmitting.
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    Chaotic application for Industrial Microwave Heating System without mode-stirring mechanism
    (2012-08-10)
    Areejit, Suwilai
    ;
    Payakkawan, Poomyos
    ;
    Jansri, Anurak
    ;
    Klomkarn, Kitdakorn
    ;
    Aoyama, Hisayuki
    More than two decades, chaos has been attracted many attention from scientists and engineers. Chaotic system phenomenon seems to be random for observers, but it is deterministic for a designer. System of Chaos attractors have been constructed more than a thousand of chaotic patterns. But implementation of chaos in engineering is still needed for real application. For this sake, the research objective is to search for new chaotic applications for Industrial Microwave Heating System without mode-stirring mechanism. The result shows that the performance of the proposed system is better than the conventional system in the rise of temperature. Eventually, the proposed method can be applied in the real application. © 2012 IEEE.