著者
上田 隆一 新井 民夫 浅沼 和範 梅田 和昇 大隅 久
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.4, pp.466-473, 2005-05-15 (Released:2010-08-25)
参考文献数
18
被引用文献数
4 8

Though Monte Carlo localization is a popular method for mobile robot localization, it requires a method for recovery of large estimation error in itself. In this paper, a recovery method, which is named an expansion resetting method, is newly proposed. The combination of the expansion resetting method and the sensor resetting method, which is a typical resetting method, is also proposed. We then compared our methods and others in a simulated RoboCup environment. Typical accidents for mobile robots were produced in the simulator during trials. We could verify that the expansion resetting method was effective for recovery from small irregular changes of a robot's pose, and that the combination method could deal with both large and small irregular changes.
著者
柴田 雅聡 生形 徹 寺林 賢司 モロ アレサンドロ 梅田 和昇
出版者
一般社団法人 日本ロボット学会
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.32, no.6, pp.558-565, 2014 (Released:2014-08-15)
参考文献数
24

In this paper, a human detection method that combines information of segmented range image and human detectors based on image local feature is proposed. The method uses a stereo vision system called Subtraction Stereo, which extracts foreground information and range image. Range image is segmented for every object by Mean Shift Clustering. The proposed method reduces processing time and false detection by limiting the search range to the object. Joint HOG feature is used for human detection and reduces undetected human by integration of detection windows in consideration of occulusion. The proposed method is evaluated by experiments comparing with the method using the conventional Joint HOG feature.
著者
三木 一生
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.10, no.7, pp.878-884, 1992-11-15 (Released:2010-08-25)
参考文献数
11
被引用文献数
1 2
著者
日下 聖 田中 孝之 梶原 秀一
出版者
一般社団法人 日本ロボット学会
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.32, no.2, pp.198-206, 2014 (Released:2014-04-15)
参考文献数
21
被引用文献数
3

This paper describes a method of skill assist efficiency control by using semi-active assist mechanisms based on phase difference limitation method. The skill assist in this study means the motion correction effect in periodical motions. The semi-active assist mechanisms can make the assist force with the phase difference, because the mechanism uses elastic materials as the source of the assist force. This force is controlled by adjusting the fixed point of the elastic materials by using the connected actuator as a series-elastic actuator. We confirmed the motion correction effect of our skill assist based on the phase difference control in previous study. Our proposed method in this study can control the skill assist efficiency to arbitrary value by limitation of the phase difference. Moreover, we confirmed that the proposed method can control its effect through experiments with several value of the efficiency. As a result of this study, we confirmed the fundamental ability of our developed method to control the motion correction ratio depending on types of task or personal differences in periodical motions.
著者
町田 和雄 三上 龍男 秋田 健三
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.17, no.4, pp.577-586, 1999-05-15 (Released:2010-08-25)
参考文献数
10

Space robots performing precise servicing tasks in unmanned facilities will be indispensable in space activity of the 21st century. This paper presents the development of a precise telerobotic system which is the world's first precise extravehicular robot aboard the satellite, ETS-VII. The robot has the features of skill and autonomy for handling various parts in space through a three-finger multisensory hand. Firstly, we discuss the requirements for in-orbit precise servicing by a robot and system constraints to integrate into the satellite, and present the total system design for space telerobotic experiment. Secondly, we describe the design of robot mechatronics adapt to space use. The launch lock mechanisms and reconfiguring method of the robot in orbit are also described. Thirdly, an architecture and design of the onboard control computer system to manage various tasks flexibly and safely are presented. Finally, the multisensory based control for precise task execution and development result of the flight model are presented. The system was launched, and initial checkout reveals the system works well in-orbit.
著者
城倉 信也 福島 理恵 吉田 和夫
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.21, no.2, pp.172-177, 2003-03-15
参考文献数
13
被引用文献数
3 2

This paper addresses the development and the experimental results of an aerial ski robot, which can perform a somersault coupled with twist motion in the air. The robot is composed of three rigid links and two rotational joints driven by DC motors and contains control devices so that complicated motion can be performed in the air. To plan the motion of the robot, Fourier Basis Algorithm (FBA) is applied, which approximates the optimal joint trajectories by the finite terms of the Fourier basis. The joint trajectories to perform a twisting somersault from FBA were inputted to the robot, and the flight experiment was carried out. As the result, the robot achieved one backward somersault with half twist. From this, the validity of the analytical model and the motion planning method was shown.
著者
高木 健 小俣 透
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.2, pp.238-244, 2005-03-15 (Released:2010-08-25)
参考文献数
13
被引用文献数
6 7

This paper presents a load-sensitive continuously variable transmission (CVT) for finger joints. Fingers of robot hands require force when grasping an object and speed when opening and closing. Therefore a CVT is ideal to improve the power transmission of a finger joint. Existing friction CVTs are too big and heavy to be installed in a finger joint. By focusing on the fact that finger joints do not necessarily rotate 360 degrees, this paper presents a remarkably simple and small load-sensitive CVT consisting of a five-bar linkage and a torsion coiled spring. Experimental results show that the CVT can increase its reduction ratio from 0.5 to 3.3 in response to a load. We have developed a two-finger gripper with the CVTs, which can grasp an object powerfully and manipulate quickly. These motions would be impossible without the CVT.
著者
高西 淳夫
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.1, no.3, pp.196-203, 1983-10-30 (Released:2010-08-25)
参考文献数
10
被引用文献数
3 5
著者
有田 輝 米田 将允 鈴木 陽介 下条 誠 明 愛国
出版者
一般社団法人 日本ロボット学会
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.35, no.9, pp.669-680, 2017 (Released:2017-12-15)
参考文献数
22
被引用文献数
1

For bipedal robots walking on uneven terrain, lack of information about a terrain may cause serious reduction of the stability. To solve the problem, the purpose of this paper is to develop a sensor which can be mounted on robot's soles and propose methods which can increase the stability of bipedal walk with the sensor. The sensor should detect information including relative posture and relative distance between the sole of the swing leg and the floor, when the robot execute the walk by ZMP-based control. In this paper, the sensor has been designed based on Net-Structure Proximity Sensor (NSPS) and a prototype has been developed. The developed sensor is with thin structure, light weight, less wirings (four wires only) and fast response (<1[ms]). Experimental results show that the sensor can output necessary relative posture and positon between the sole and the floor for walk control. Besides, the sensor has been mounted to the soles of a hobby robot and its feasibility is shown by controlling robot so that its sole can land on a tilted floor with maximum contacting area to improve the stability.
著者
岡崎 安直 山本 正樹 小松 真弓 津坂 優子 足達 勇治
出版者
一般社団法人 日本ロボット学会
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.28, no.3, pp.302-310, 2010 (Released:2012-01-25)
参考文献数
12
被引用文献数
10 15

Robotic systems intended for domestic housekeeping or elderly care tasks will have interaction with humans and therefore demand an intrinsically safe design. Conventional robotic systems are driven by heavy, high power and high stiffness electric motors, making them unsafe for human coexistence. To overcome this problem, we have developed a robotic arm system using pneumatic muscle actuators, which is intrinsically safe given its low weight and pliant structure. In this paper we present the design of the robot arm and associated control system, showing that the robot has positioning and force control accuracy sufficient for daily domestic tasks.
著者
藤木 大介 上田 博唯 近間 正樹
出版者
日本ロボット学会
雑誌
日本ロボット学会誌 (ISSN:02891824)
巻号頁・発行日
vol.26, no.5, pp.445-452, 2008-07-15 (Released:2010-08-25)
参考文献数
29

Home service robots must have implements like conversation interfaces so it can be easily accepted by the users. To get basic data to develop such a robot, we investigated the robot's impressions of when it responded to the instructions of operating a TV or when it planning the cooking recipes. Thirty men and thirty women of different age groups rated the impression on using the robot. The results indicated that we should find a better way to inform to the user when a word was not in the robot's database. Moreover, we should reconsider what kind of the robot's gesture the users need. In addition, the embodiment of the robot made the impressions better. In addition, women judged the robot positively probably because the robot had a cute appearance.
著者
中村 弘 石黒 章夫 内川 嘉樹 ROLF Pfeifer
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.7, pp.963-971, 2000-10-15
参考文献数
9
被引用文献数
10 3

Conventional artificial intelligence and cognitive science approaches have been arguing the emergence of intelligence by completely separating the cognitive agent from its environment. In this paper, we intensively investigate and analyze the role of the system-environment interaction through the comparison between the information processing and embodied cognitive approaches. By taking account of this interaction, we experimentally show some of the hard classification problems suffering from the large input space and the ambiguities due to the perceptual aliasing problem can be greatly alleviated. To demonstrate this concept, we apply to a garbage-collecting task as a practical example.