• Title/Summary/Keyword: Dynamic Neural Processor

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Design of an Adaptive Output Feedback Controller for Robot Manipulators Using DNP (DNP을 이용한 로봇 매니퓰레이터의 출력 궤환 적응제어기 설계)

  • Cho, Hyun-Seob
    • Proceedings of the KAIS Fall Conference
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    • 2008.11a
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    • pp.191-196
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    • 2008
  • The intent of this paper is to describe a neural network structure called dynamic neural processor(DNP), and examine how it can be used in developing a learning scheme for computing robot inverse kinematic transformations. The architecture and learning algorithm of the proposed dynamic neural network structure, the DNP, are described. Computer simulations are provided to demonstrate the effectiveness of the proposed learning using the DNP.

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Control of Nonlinear System by Multiplication and Combining Layer on Dynamic Neural Networks (동적 신경망의 층의 분열과 합성에 의한 비선형 시스템 제어)

  • Park, Seong-Wook;Lee, Jae-Kwan;Seo, Bo-Hyeok
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.48 no.4
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    • pp.419-427
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    • 1999
  • We propose an algorithm for obtaining the optimal node number of hidden units in dynamic neural networks. The dynamic nerual networks comprise of dynamic neural units and neural processor consisting of two dynamic neural units; one functioning as an excitatory neuron and the other as an inhibitory neuron. Starting out with basic network structure to solve the problem of control, we find optimal neural structure by multiplication and combining dynamic neural unit. Numerical examples are presented for nonlinear systems. Those case studies showed that the proposed is useful is practical sense.

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DESIGN OF CONTROLLER FOR NONLINEAR SYSTEM USING DYNAMIC NEURAL METWORKS

  • Park, Seong-Wook;Seo, Bo-Hyeok
    • 제어로봇시스템학회:학술대회논문집
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    • 1995.10a
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    • pp.60-64
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    • 1995
  • The conventional neural network models are a parody of biological neural structures, and have very slow learning. In order to emulate some dynamic functions, such as learning and adaption, and to better reflect the dynamics of biological neurons, M.M. Gupta and D.H. Rao have developed a 'dynamic neural model'(DNU). Proposed neural unit model is to introduce some dynamics to the neuron transfer function, such that the neuron activity depends on internal states. Integrating an dynamic elementry processor within the neuron allows the neuron to act dynamic response Numerical examples are presented for a model system. Those case studies showed that the proposed DNU is so useful in practical sense.

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Nonlinear Dynamic Manipulator Control Using DNP Controller (DNP 제어기에 의한 비선형 동적 매니퓰레이터 제어)

  • Cho, Hyeon-Seob;Kim, Hee-Sook;Ryu, In-Ho;Jang, Sung-Whan
    • Proceedings of the KIEE Conference
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    • 1999.07b
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    • pp.764-767
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    • 1999
  • In this paper, to bring under robust and accurate control of auto-equipment systems which disturbance, parameter alteration of system, uncertainty and so forth exist, neural network controller called dynamic neural processor(DNP) is designed. Also, the architecture and learning algorithm of the proposed dynamic neural network, the DNP, are described and computer simulations are provided to demonstrate the effectiveness of the proposed learning method using the DNP.

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Adaptive Control of Non-linearity Dynamic System using DNU (DNU에 의한 비선형 동적시스템의 적응제어)

  • Cho, Hyeon-Seob;Kim, Hee-Sook
    • Proceedings of the KIEE Conference
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    • 1998.11b
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    • pp.533-536
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    • 1998
  • The intent of this paper is to describe a neural network structure called dynamic neural processor(DNP), and examine how it can be used in developing a learning scheme for computing robot inverse kinematic transformations. The architecture and learning algorithm of the proposed dynamic neural network structure, the DNP, are described. Computer simulations are provided to demonstrate the effectiveness of the proposed learning using the DNP.

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A Method of Robust Stabilization of the Plants Using DNP (DNP을 이용한 플랜트의 강인 안정화 기법)

  • Cho, Hyun-Seob
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.9 no.6
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    • pp.1574-1580
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    • 2008
  • In this paper, to bring under robust and accurate control of auto-equipment systems which disturbance, parameter alteration of system, uncertainty and so forth exist, neural network controller called dynamic neural processor(DNP) is designed In order to perform a elaborate task like as assembly, manufacturing and so forth of components, tracking control on the trajectory of power coming in contact with a target as well as tracking control on the movement course trajectory of end-effector is indispensable. Also, the learning architecture to compute inverse kinematic coordinates transformations in the Plants of auto-equipment systems is developed and the example that DNP can be used is explained. The architecture and learning algorithm of the proposed dynamic neural network, the DNP, are described and computer simulations are provided to demonstrate the effectiveness of the proposed learning method using the DNP.

Implementation of a real-time neural controller for robotic manipulator using TMS 320C3x chip (TMS320C3x 칩을 이용한 로보트 매뉴퓰레이터의 실시간 신경 제어기 실현)

  • 김용태;한성현
    • 제어로봇시스템학회:학술대회논문집
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    • 1996.10b
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    • pp.65-68
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    • 1996
  • Robotic manipulators have become increasingly important in the field of flexible automation. High speed and high-precision trajectory tracking are indispensable capabilities for their versatile application. The need to meet demanding control requirement in increasingly complex dynamical control systems under significant uncertainties, leads toward design of intelligent manipulation robots. This paper presents a new approach to the design of neural control system using digital signal processors in order to improve the precision and robustness. The TMS32OC31 is used in implementing real time neural control to provide an enhanced motion control for robotic manipulators. In this control scheme, the networks introduced are neural nets with dynamic neurons, whose dynamics are distributed over all the, network nodes. The nets are trained by the distributed dynamic back propagation algorithm. The proposed neural network control scheme is simple in structure, fast in computation, and suitable for implementation of real-time, control. Performance of the neural controller is illustrated by simulation and experimental results for a SCARA robot.

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40-TFLOPS artificial intelligence processor with function-safe programmable many-cores for ISO26262 ASIL-D

  • Han, Jinho;Choi, Minseok;Kwon, Youngsu
    • ETRI Journal
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    • v.42 no.4
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    • pp.468-479
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    • 2020
  • The proposed AI processor architecture has high throughput for accelerating the neural network and reduces the external memory bandwidth required for processing the neural network. For achieving high throughput, the proposed super thread core (STC) includes 128 × 128 nano cores operating at the clock frequency of 1.2 GHz. The function-safe architecture is proposed for a fault-tolerance system such as an electronics system for autonomous cars. The general-purpose processor (GPP) core is integrated with STC for controlling the STC and processing the AI algorithm. It has a self-recovering cache and dynamic lockstep function. The function-safe design has proved the fault performance has ASIL D of ISO26262 standard fault tolerance levels. Therefore, the entire AI processor is fabricated via the 28-nm CMOS process as a prototype chip. Its peak computing performance is 40 TFLOPS at 1.2 GHz with the supply voltage of 1.1 V. The measured energy efficiency is 1.3 TOPS/W. A GPP for control with a function-safe design can have ISO26262 ASIL-D with the single-point fault-tolerance rate of 99.64%.

Inverse Kinematic Learning of Robot Coordinate Transformations Using Dynamic Neural Network (동적 신경망에 의한 로봇 좌표 변환의 역기구학적 학습)

  • Cho, Hyeon-Seob;Ryu, In-Ho;Jeon, Jeong-Chay;Kim, Hee-Sook;Jang, Seong-Whan
    • Proceedings of the KIEE Conference
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    • 1998.07g
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    • pp.2363-2366
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    • 1998
  • The intent of this paper is to describe a neural network structure called dynamic neural processor(DNP), and examine how it can be used in developing a learning scheme for computing robot inverse kinematic transformations. The architecture and learning algorithm of the proposed dynamic neural network structure, the DNP, are described. Computer simulations are provided to demonstrate the effectiveness of the proposed learning using the DNP.

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Nonlinear System Control for DNP (동적 신경망에 의한 비선형 시스템 제어)

  • Roh, Yong-Gi;Ryu, In-Ho;Cho, Hyeon-Seob;Oh, Seong-Kwon;Jang, Seong-Whan
    • Proceedings of the KIEE Conference
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    • 1999.07b
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    • pp.890-893
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    • 1999
  • The intent of this paper is to describe a neural network structure called dynamic neural processor(DNP), and examine how it can be used in developing a learning scheme for computing robot inverse kinematic transformations. The architecture and learning algorithm of the proposed dynamic neural network structure, the DNP, are described. Computer simulations are demonstrate the effectiveness of the Proposed learning using the DNP.

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