著者
小野 栄一
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.9, no.3, pp.383-388, 1991-06-15 (Released:2010-08-25)
参考文献数
10
著者
神田 崇行 石黒 浩 石田 亨
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.19, no.3, pp.362-371, 2001-04-15 (Released:2010-08-10)
参考文献数
17
被引用文献数
19 31

For realizing robots working in human society, interaction between people and robots is one of the important issues. We have developed a robot that behaves based on visual information and interacts with people. The robot controls its gazing direction for representing the internal states. By using the robot, we have evaluated impressions given by the robot based on psychological methods. SD method and factor analysis have been applied to evaluate the impressions. As a result of the experiments, impressions of the robot principally consisted of 4 factors: familiality, enjoyment, activity, and performance evaluation, and these have been effected by computer skills of subjects. In addition, we have verified that gazing direction control promotes interactions between people and the robot.
著者
堀江 竜太 金子 真
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.21, no.8, pp.940-946, 2003-11-15 (Released:2010-08-25)
参考文献数
17
被引用文献数
2 4

This paper proposes a tactile sensor capable of automatically adjusting its sensitivity, depending upon the contact information. Suppose a strain gauge based sensor, such as multi-axis force sensor and tactile sensor. One big issue for those sensors is the signal saturation due to large input for a particular direction. The proposed sensor system can automatically avoid such a situation with combination of Automatic Gain Control (AGC) . The sensor is composed of a controller and an analyzer. The analyzer provides with the contact force and the controller tunes up the amplitude of each frequency. We discuss the basic design relue where two theorems are introduced for guaranteeing the working principle of the sensor with AGC. Experimental results are also shown for validating the basic idea of the proposed sensor.
著者
小菅 一弘 川俣 裕行 福田 敏男 小塚 敏紀 水野 智夫
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.11, no.6, pp.849-855, 1993-09-15 (Released:2010-08-25)
参考文献数
17
被引用文献数
3 6

This paper proposes a method to calculate the forward kinematics of a Stewart Plaftorm type of parallel link manipulators. The Stewart Platform consists of a base platform, a moving platform, and linear actuators connecting the both platforms. First we introduce a virtual parallel link mechanism, having the same kinematic structure as the original parallel mechanism. We assume that the moving platform of the virtual mechanism is directly driven by actuators and the limbs connecting both platforms have no actuators. A trajectory tracking control system is designed for this virtual mechanism based on the resolved motion rate control, so that the displacements of limbs are controlled by the actuators driving the moving platform. We calculate the forward kinematics by numerical simulation of the control system ; the position and orientation of the moving platform of the virtual mechanism is a solution for given displacements of limbs, when the tracking error of limbs converges to zero. The method is effective for a time varying displacements of limbs as long as the displacements are differentiable about time. The position and orientation of the moving platform is obtained without error, once the tracking error converges to zero. The simulation results illustrate the method.
著者
村上 俊之 中村 亮 郁 方銘 大西 公平
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.11, no.5, pp.765-768, 1993-07-15 (Released:2010-08-25)
参考文献数
6
被引用文献数
21 68

The paper describes a force sensorless control in multi-degrees-of-fredom robot. In the active com-pliant control, force sensor is attached to the robot to detect the reaction force. However it makes a structure of the robot system complicated. To improve this problem, we propose the force sensorless control strategy based on disturbance observer.First, a basic structure of the dusturbance observer is shown. Then the calculation process of the reaction force is also introduced. Second, the force sensorless compliant controller is constructed. The experimental results are also shown to confirm the validity of the proposed method.
著者
森岡 一幸 李 周浩 橋本 秀紀
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.22, no.1, pp.103-111, 2004-01-15 (Released:2010-08-25)
参考文献数
17
被引用文献数
5 5

In the environment that human and robots coexist, mobile robots have to approach human as much as possible in order to provide human with physical services. For friendly interaction with human, the robots should be able to afford human-affinitive movement. In this paper, human following, as one of human-affinitive movements, of robot is achieved. The human following robot requires several techniques; the recognition of the target human, the recognition of the environment around the robot, and the control strategy for stable human following. In this research, Intelligent Space, where many sensors and intelligent devices are distributed, is used for the recognition of the target human and the environment around the robot. The control law based on the virtual spring model is proposed to mitigate the difference of movement between the human and the mobile robot. The proposed control law is applied to Intelligent Space and its performance is verified by computer simulation and experiment.
著者
村上 陽一郎
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.16, no.1, pp.6-7, 1998-01-15 (Released:2010-08-25)
被引用文献数
2
著者
市川 誠
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.13, no.2, pp.213-218, 1995-03-15 (Released:2010-08-25)
参考文献数
6
著者
星 義克 三平 満司 古賀 雅伸
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.18, no.8, pp.1133-1140, 2000-11-15 (Released:2010-08-25)
参考文献数
13
被引用文献数
5 4

In this paper, we discuss an autonomous locomotion control of a snake-like robot which is modeled by some links with passive wheels. When the robot locomotes windingly, it should always keep the high locomotable shape, because its locomotability depends on its own shape. Then, we utilized a notion of manipulability to evaluate the locomotability, and proposed a controller to make it autonomously locomote in a desired direction without decreasing the manipulability. In this method, the robot spontaneously generates its gait, so we don't need to design any gaits. Moreover, by some simulations, it was proved that the method realizes the autonomous locomotion without taking singular postures.
著者
石塚 康孝 小金澤 鋼一
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.26, no.6, pp.699-710, 2008-09-15 (Released:2010-08-25)
参考文献数
17
被引用文献数
6 5

This paper presents a new mechanism for artificial fingers. It enables adduction/abduction of the MP joint in addition to the synergetic flexion/extension of the DIP, PIP and MP joints. The key mechanism is the newly invented double planetary gear system (DPGS) that allows three DOF motions of the finger in a compact placement of all actuators in a palm. The DPGS receives two input torques; one is an active torque coming from DC-motors, which drives solar gears, the other is a passive torque around the carrier of the planetary gears generated by a spring. This active/passive hybrid actuation enables to grip unknown shape objects with no sensory feedback. This paper describes the kinematics and the kinetics of the newly developed mechanism followed by the kinetics of pinching the object by two-fingers. It also shows the results of a couple of experiments. Additionally, we show a new mechanical design aiming for constructing a multi-fingered hand.
著者
和田 正義
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.25, no.7, pp.1100-1107, 2007-10-15 (Released:2010-08-25)
参考文献数
14
被引用文献数
6 9

This paper presents modeling and control of omnidirectional mobile robots propelled by active-casters (poweredcasters) . This type of mobile robot is redundantly actuated since it is controlled by more than four motors while its configuration is represented by three DOF on the ground. The modeling method is generalized down to n-wheeled mobile robots and a unified modeling procedure is presented for flexible designs with variety of wheel layout. The kinematic model derived by proposed method enables continuous linear full state feedback control with no consideration for singular configurations of robots. Performances of three- and fourwheeled robots with full state feedback controllers and proposed kinematic models are tested by computer simulations. Furthermore, a three-wheeled robot prototype is design, built and tested for the verification of the proposed modeling and control method for omnidirectional mobile robots in the real world.
著者
金出 武雄
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.22, no.3, pp.296-299, 2004-04-15 (Released:2010-08-25)
参考文献数
1
著者
広瀬 茂男 袁 建軍 小沼 洋介
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.23, no.3, pp.330-336, 2005-04-15 (Released:2010-08-25)
参考文献数
8
被引用文献数
3 6

A development of stair climbing mobile vehicle to be the base for stair climbing wheelchairs and/or inspection robots is greatly demanded. Several types of the vehicles using crawlers, wheels and legs have been proposed to perform such a stable stair climbing motion. However, conventional vehicles are limited by their mobility, safety, and mechanical size and weight. We propose a new stair climbing leg-wheel hybrid vehicle coined as“Zero Carrier”. The Zero Carrier composed of unified eight prismatic-joint legs, four of which attached active wheels and other four attached passive casters. Proposing Zero Carrier can be designed lightweight and powerful. It can also maintain high stability on stair climbing motion and perform slip-less turning motion. Design of driving mechanisms, sensors, and motion control of the Zero Carrier are then performed and demonstrated its motion by the mechanical model Zero Carrier I.
著者
朴 〓用 小森谷 清 金子 真 大野 武房 谷江 和雄
出版者
The Robotics Society of Japan
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.5, no.4, pp.283-290, 1987-08-15 (Released:2010-08-25)
参考文献数
14

分布型触覚センサの重要な機能の一つに, 形状認識機能がある.この機能を実現するには, 対象との接触によってセンサ面に生ずる変形 (押込み量) を検知する必要がある.本論文では, こうした変形を検知し得る分布型センサを光導波板を用いて構成することを試みた.大気中に置かれた透明な板の側面より光を照射すると, 透明板・大気箋界面において, 照射光はその入射角が臨界角以内の時, 全反射して透明板中を進行する.この透明板に, 下面に凹凸のある白色弾性シートを接触させ, それに荷重を加えるとシートの凸部が圧縮されて透明板上に密着する.この密着部分では全反射の条件が満されず, 白色弾性シート表面で, 臨界角以上の角度方向へ光が散乱する.密着面の大きさが白色弾性シートに加わる圧力・変位により変化するように構成し, 散乱光を透明板のシート密着面の反対側から観測するようにすれば, シートに加わる圧力分布や変形状態を散乱光量の分布として検出することができる.本研究ではアクリル製透明板, 円錐状の突起をもつ白色弾性シート, フォトトランジスタマトリクス, プラスチック製光ファイバ, 光源からなるセンサを試作するとともに, 散乱光強度からセンサ面の押込み量を推定する関係式を導出した.またセンサ出力をマイクロコンピュータで処理するシステムを構成し, 上記関係式をもとに数種の物体形状を視覚表示出力として再現する実験を行った.対象の形状の絶対値を求めるには問題があるものの, 形状の幾何学的特徴を抽出するには満足なセンサ出力が得られることが実験的に確認された.