• Title/Summary/Keyword: Robot Control System

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Real Time Control for Robot Manipulator Using Transputer (트랜스퓨터를 이용한 로보트 매니퓰레이터의 실시간 제어)

  • Jang, Yong-Geun;Hong, Suk-Kyo
    • Proceedings of the KIEE Conference
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    • 1992.07a
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    • pp.397-400
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    • 1992
  • Many dynamic control have been proposed; however, most of them are limited within stage of simulation study. The main reason is that the computations required for inverse dynamics are far beyond the ability of the present commercially available microprocessors. In this paper, In order to achieve real-time processing in robot dynamic control, a parallel processing computer for robot dynamic control is implemented using two transputer. Two transputer compute two degree of freedom robot. The transputer is a special purpose MPU for parallel processing. Transputers are used in networks to build a high performance concurrent system. A network of transputers and peripheral controllers is constructed using point-to-point communication. To gain most benifit from the transputer architecture, the whole system is programmed in OCCAM which is a high level language for concurrent applications. This control algorithm is applied to the RHINO SCARA type manipulator. We could taked about 438.6 microseconds to compute robot dynamic with two-processors.

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Target Detection of Mobile Robot by Vision (시각 정보에 의한 이동 로봇의 대상 인식)

  • 변정민;김종수;김성주;전홍태
    • Proceedings of the IEEK Conference
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    • 2002.06c
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    • pp.29-32
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    • 2002
  • This paper suggest target detection algorithm for mobile robot control using color and shape recognition. In many cases, ultrasonic sensor(USS) is used in mobile robot system to measure the distance between obstacles. But with only USS, it may have many restrictions. So we attached CCD camera to mobile robot to overcome its restrictions. If visual information is given to robot system then robot system will be able to accomplish more complex mission successfully. With acquired vision data, robot looks for target by color and recognize its shape.

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A 3D GUI System for Controlling Agent Robots

  • Hyunsik Ahn;Kang, Chang-Hoon
    • Proceedings of the IEEK Conference
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    • 2002.07b
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    • pp.848-851
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    • 2002
  • Recently, there are lots of concerning on the integration of robot and virtual reality with the trends of the research of intelligent robot and mined reality. In this paper, a 3D GUI system is proposed based on Internet for remote controlling and monitoring of agent robot working for itself. The proposed system is consists of a manager ordering a new position and displaying the motion of robot, an agent robot moving to the destination according to the indication, a positioning module detecting the current position of robot, and a geographical information module. A user can order the robot agent move to a new position in a virtual space and watch the real images captured from the real sites of the robot. Then, the agent robot moves to the position automatically with avoiding collision by using range finding and a path detection algorithm. We demonstrate the proposed 3D GUI system is supporting a more convenient remote control means far the robots.

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Virtual Model Control of a Posture Balancing Biped Acrobatic Robot with Fuzzy Control for Pendulum Swing Motion Generation (진자 흔들기 퍼지 제어기가 추가된 가상모델 제어 2족 곡예로봇 자세 균형 제어)

  • Lee, Byoung-Soo
    • Journal of Institute of Control, Robotics and Systems
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    • v.7 no.11
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    • pp.904-911
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    • 2001
  • A broomstick swinging biped acrobatic controller is designed and simulated to show capability of the system of controllers: virtual model controller is employed for the robot\`s posture balancing control while a higher level fuzzy controller modulate the one of the virtual model controller\`s parameter for the pendulum swinging motion generation. The robot is of 7 degree-of-freedom, 8-link planar bipedal robot having two slim legs and a body. Each leg consists of a hip joint, a knee joint, an ankle joint and the body has a free joint at the top in the head at which a freely rotating broomstick is attached. We assume that the goal for the acrobat robot is to maintain a body balance in the sagittal plane while swinging up the freely up the freely rotating pendulum. We also assume that the actuators in the joints are all ideal torque generators. The proposed system of controllers satisfies the goal and the simulation results are presented.

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Human-Friendly Interfaces of a Robot Manipulator Control System for Handicapped Person

  • Lim, Soo-chul;Lee, Kyoobin;Kwon, Dong-Soo
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.84.1-84
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    • 2002
  • A Human-Robot-Interface(HRI) for the disabled Person is developed. $\textbullet$ HRI consists of the laser pointer '||'&'||' USB camera and pressure sensor. $\textbullet$ HRI makes three degree of freedom. $\textbullet$ Three robot position control method with the Interface is presented. $\textbullet$ Experimental results show that user control the 6 DOF robot with the interface and control method.

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Vibration Control of Working Booms on Articulated Bridge Inspection Robots (교량검사 굴절로봇 작업붐의 진동제어)

  • Hwang, In-Ho;Lee, Hu-Seok;Lee, Jong-Seh
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.21 no.5
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    • pp.421-427
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    • 2008
  • A robot crane truck is developed by the Bridge Inspection Robot Development Interface(BRIDI) for an automated and/or teleoperated bridge inspection. This crane truck looks similar to the conventional bucket crane, but is much smaller in size and light-weight. At the end of the telescoping boom which is 12m long, a robot platform is mounted which allows the operator to scan the bridge structure under the deck trough the camera. Boom vibration induced by wind and deck movement can cause serious problems in this scanning system. This paper presents a control system to mitigate such vibration of the robot boom. In the proposed control system, an actuator is installed at the end of the working boom. This control system is studied using a mathematical model analysis with LQ control algorithm and a scaled model test in the laboratory. The study indicates that the proposed system is efficient for the vibration control of the robot booms, thereby demonstrating its immediate applicability in the field.

퍼지 적응 제어기를 이용한 컴플라이언스 로보트에 관한 연구

  • 노흥식;김승우;박민용
    • 제어로봇시스템학회:학술대회논문집
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    • 1991.10a
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    • pp.588-588
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    • 1991
  • This paper proposes a compliance robot control algorithm using fuzzy adaptive controller and fuzzy compliance vector generator. In the compliance robot control, we need more adaptivity because the linear modeling in robot dynamics is getting more difficult by contact with external environment. Existing adapitive controllers have difficulty in realtime processing. So in order to overcome it, We adopt fuzzy adaptive controller and propose fuzzy compliance vector generator for flexible compliant motion. We analyze and confirm the proposed algorithm by surface processing experiment with a control system implemented by VME system.

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