• Title/Summary/Keyword: multiple input processing

Search Result 256, Processing Time 0.028 seconds

Development of an Input File Preparation Tool for Offline Coupling of DNDC and DSSAT Models (DNDC 지역별 구동을 위한 입력자료 생성 도구 개발)

  • Hyun, Shinwoo;Hwang, Woosung;You, Heejin;Kim, Kwang Soo
    • Korean Journal of Agricultural and Forest Meteorology
    • /
    • v.23 no.1
    • /
    • pp.68-81
    • /
    • 2021
  • The agricultural ecosystem is one of the major sources of greenhouse gas (GHG) emissions. In order to search for climate change adaptation options which mitigate GHG emissions while maintaining crop yield, it is advantageous to integrate multiple models at a high spatial resolution. The objective of this study was to develop a tool to support integrated assessment of climate change impact b y coupling the DSSAT model and the DNDC model. DNDC Regional Input File Tool(DRIFT) was developed to prepare input data for the regional mode of DNDC model using input data and output data of the DSSAT model. In a case study, GHG emissions under the climate change conditions were simulated using the input data prepared b y the DRIFT. The time to prepare the input data was increased b y increasing the number of grid points. Most of the process took a relatively short time, while it took most of the time to convert the daily flood depth data of the DSSAT model to the flood period of the DNDC model. Still, processing a large amount of data would require a long time, which could be reduced by parallelizing some calculation processes. Expanding the DRIFT to other models would help reduce the time required to prepare input data for the models.

Motion Analysis with Time Delay Neural Network (시간 지연 신경망을 이용한 동작 분석)

  • Jang, Dong-Sik;Lee, Man-Hee;Lee, Jong-Won
    • Journal of Institute of Control, Robotics and Systems
    • /
    • v.5 no.4
    • /
    • pp.419-426
    • /
    • 1999
  • A novel motion analysis system is presented in this paper. The proposed system is inspired by processing functions observed in the fly visual system, which detects changes in input light intensities, determines motion on both the local and the wide-field levels. The system has several differences from conventional motion analysis system. First, conventional systems usually focused on matching similar feature or optical flow, but neural network is applied in this system. Back propagation is used by learning method, and Tine Delay Neural Network (TDNN) is also used as analysis method. Second, while conventional systems usually limited on only two frames of sequence, the proposed system accept multiple frames of sequence. The experimental results showed a 94.7% correct rate with a speed of 71.47 milli seconds for real and synthetic images.

  • PDF

Design of AMI Robot Control System Using PSD and Back Propagation Algorithm (PSD 및 역전파 알고리즘를 이용한 AMI 로봇의 제어 시스템 설계)

  • 이재욱;서운학;김휘동;이희섭;한성현
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2002.04a
    • /
    • pp.393-398
    • /
    • 2002
  • Neural networks are used in the framework of sensorbased tracking control of robot manipulators. They learn by practice movements the relationship between PSD (an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. forthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple backpropagation networks one of which is selected according to which division (corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

  • PDF

Robust Control of Industrial Robot Based on Back Propagation Algorithm (Back Propagation 알고리즘을 이용한 산업용 로봇의 견실 제어)

  • 윤주식;이희섭;윤대식;한성현
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2004.04a
    • /
    • pp.253-257
    • /
    • 2004
  • Neural networks are works are used in the framework of sensor based tracking control of robot manipulators. They learn by practice movements the relationship between PSD(an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple back propagation networks one of which is selected according to which division(corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

  • PDF

A neural network based real-time robot tracking controller using position sensitive detectors (신경회로망과 위치 검출장치를 사용한 로보트 추적 제어기의 구현)

  • 박형권;오세영;김성권
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 1993.10a
    • /
    • pp.660-665
    • /
    • 1993
  • Neural networks are used in the framework of sensorbased tracking control of robot manipulators. They learn by practice movements the relationship between PSD ( an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple backpropagation networks one of which is selected according to which division (corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very fast training and processing implementation required for real time control.

  • PDF

Design of AM1 Robot Control System Using PSD and Back Propagation Algorithm (PSD 및 역전파 알고리즘를 이용한 AM1 로봇의 제어 시스템 설계)

  • 이재욱;서운학;이종붕;이희섭;한성현
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2001.04a
    • /
    • pp.239-243
    • /
    • 2001
  • Neural networks are used in the framework of sensorbased tracking control of robot manipulators. They learn by practice movements the relationship between PSD (an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple backpropagation networks one of which is selected according to which division (corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

  • PDF

Robust control of industrial robot using back propagation algorithm and PSD (역전파 알고리즘 및 PSD를 이용한 로봇의 결실제어)

  • 이재욱
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2000.04a
    • /
    • pp.171-175
    • /
    • 2000
  • Neural networks are in the framework of sensorbased tracking control of robot manipulators. They learn by practice movements the relationship between PSD (an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple backpropagation networks one of which is selected according to which division (corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

  • PDF

Design of Industrial Robot Control System Using PSD and Back Propagation Algorithm (PSD 및 역전파 알고리즘을 이용한 산업용 로봇의 제어 시스템 설계)

  • 이재욱;이희섭;김휘동;김재실;한성현
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
    • /
    • 2000.10a
    • /
    • pp.108-112
    • /
    • 2000
  • Neural networks are used in the framework of sensorbased tracking control of robot manipulators. They learn by practice movements the relationship between PSD (an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple backpropagation networks one of which is selected according to which division (corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

  • PDF

Robust Control of AM1 Robot Using PSD Sensor and Back Propagation Algorithm (PSD 센서 및 Back Propagation 알고리즘을 이용한 AM1 로봇의 견질 제어)

  • Jung, Dong-Yean;Han, Sung-Hyun
    • Journal of the Korean Society of Industry Convergence
    • /
    • v.7 no.2
    • /
    • pp.167-172
    • /
    • 2004
  • Neural networks are used in the framework of sensor based tracking control of robot manipulators. They learn by practice movements the relationship between PSD(an analog Position Sensitive Detector) sensor readings for target positions and the joint commands to reach them. Using this configuration, the system can track or follow a moving or stationary object in real time. Furthermore, an efficient neural network architecture has been developed for real time learning. This network uses multiple sets of simple back propagation networks one of which is selected according to which division (Corresponding to a cluster of the self-organizing feature map) in data space the current input data belongs to. This lends itself to a very training and processing implementation required for real time control.

  • PDF

A New Prediction-Based Parallel Event-Driven Logic Simulation (새로운 예측기반 병렬 이벤트구동 로직 시뮬레이션)

  • Yang, Seiyang
    • KIPS Transactions on Computer and Communication Systems
    • /
    • v.4 no.3
    • /
    • pp.85-90
    • /
    • 2015
  • In this paper, anew parallel event-driven logic simulation is proposed. As the proposed prediction-based parallel event-driven simulation method uses both prediction data and actual data for the input and output values of local simulations executed in parallel, the synchronization overhead and the communication overhead, the major bottleneck of the performance improvement, are greatly reduced. Through the experimentation with multiple designs, we have observed the effectiveness of the proposed approach.