著者
竹中 透 松本 隆志 吉池 孝英
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.29, no.5, pp.455-462, 2011 (Released:2011-07-15)
参考文献数
13
被引用文献数
2 3

In this paper, we propose a method to generate various walking gait patterns for biped robots in real-time using an approximated dynamics model with two point masses representing motion of the feet and a linear inverted pendulum representing the horizontal motion of the torso. The motion of the inverted pendulum is calculated from the trajectories of the feet and the desired ZMP. Supposing these trajectories for the current gait and the next cyclic gait are given, the initial state of the inverted pendulum of the cyclic gait is calculated, and the desired ZMP trajectory of the current gait is modified so that the current gait converges to the cyclic gait using the concept called “the divergent component of the motion” as a relaxed boundary condition. Using these techniques, real-time gait generation is achieved which requires a comparatively small amount of modification of the desired ZMP trajectory while guaranteeing the continuity of the gait generation.
著者
竹内 栄二朗 山崎 将史 田中 一志 大野 和則 田所 諭
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.30, no.3, pp.296-304, 2012 (Released:2012-04-29)
参考文献数
19
被引用文献数
4 1 2

This paper proposes multi-sensor localization framework for an autonomous mobile robot using multiple sensor. To realize robust localization in outdoor environments, many external sensors are needed. The propoesd localization framework in the paper is to divide the localization system into modules that contains retro-active localization function for particle filter to solve computation delay of to calculate measurement models. In this paper, solutions for multi-sensor localization are illustrated and localization experimental results in outdoor environments are described.
著者
武居 直行
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.29, no.6, pp.508-511, 2011 (Released:2011-08-15)
参考文献数
35
被引用文献数
6 8
著者
遠藤 玄 谷 篤 福島 E.文彦 広瀬 茂男 入部 正継 田窪 敏夫
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.30, no.8, pp.779-787, 2012 (Released:2012-11-15)
参考文献数
15
被引用文献数
1

Home oxygen therapy (HOT) is a medical treatment for patients suffering from severe lung diseases. Although a walk in an outdoor environment is recommended for the patients to keep physical strength, patients always have to carry a portable oxygen supplier which is not sufficiently light weight for the patients. Our ultimate goal is to develop a mobile robot carrying an oxygen tank and follows a foregoing patient in an urban outdoor environment. We have proposed a mobile robot with a tether interface to detect the relative position of the foregoing patient. In this paper, we improve mobile platform mechanisms and active wheels to maximize the negotiating step height, and to allocate sufficient luggage area in the main body carrying an actual oxygen tank. The following control algorithm is also improved and demonstrate its effectiveness in an outdoor following experiment.
著者
池上 高志
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.4, pp.435-444, 2010 (Released:2012-01-25)
参考文献数
49
被引用文献数
2 2

Here we will discuss the Self-organization of autonomous embodied motion [5]. Despite being a major characteristic of living systems, Self-movement has never been viewed seriously as a central element of living systems. In fact, most current research focuses on ‘structure’ rather than ‘movement’. The theory of autopoiesis [35] also does not examine biological movement directly. However, Self-movement often appears as a central theme in robotics research, its self-organization has scarcely been studied. Self-organization of Self-motion is important, because We need to understand the natural intelligence of living systems, opposed to artificial intelligence, its diversity and its root in evolution. As a means for approaching these challenges in robotics research, we designed a simple chemical system that synthesizes embodied autonomous motion: a self-moving oil droplet. This chemical system provides a new example of self-movement besides biological systems and mechanical robots.
著者
米田 完 飯山 浩幸 広瀬 茂男
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.14, no.6, pp.881-886, 1996-09-15
参考文献数
14
被引用文献数
10 11

This paper discusses an algorithm to make quadruped machine walk dynamically and omnidirectionally following a real-time command. To produce a smooth body motion in a high speed walk, we introduce a new gait named “Intermittent trot gait, ” in which four-leg-supporting phase and two-diagonal-leg-supporting phase appear in orders. In this gait, pitching and rolling motion of the body is able to be suppressed to smaller level than that of the other gaits such as pace, bounce, and expanded trot gait, which is an intermediate gait of the crawl and the trot. Because, dynamic effects of the swinging legs are almost canceled each other. To realize the “Intermittent trot gait, ” new algorithms to decide a landing point and to plan a motion of the body are discussed. A landing point is decided by considering an operator command and also a conversion to the standard leg formation. On the other hand, a motion of the body is planned to produce a dynamic stability, and to follow a speed and direction command. By using these algorithms, a mechanical vehicle TITAN VI could walk omnidirectionally, smoothly following a real-time operator command.
著者
石 超 佐竹 聡 神田 崇行 石黒 浩
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.4, pp.334-345, 2017 (Released:2017-06-15)
参考文献数
34
被引用文献数
12

We conducted a field study to investigate the social acceptance of social robots by stores, particularly for attracting passersby, which today's robots can autonomously perform. From interviews with ten store managers, we identified two main reasons they want to employ such social robots in their stores: robots offer cheap labor and provide unique value that humans cannot. They believe that robots are good at attracting the attention of visitors without causing or receiving stress. We also conducted three case studies in which we observed how store managers employed social robots in their stores. Each store manager requested different designs in the preparation phase. After deployment, we found that the managers were generally satisfied with the services autonomously offered by the robots, which successfully encouraged people to stop. For two out of three stores the robots successfully encouraged visitors to visit. The store managers were satisfied with the results and expressed a desire to use the robots again.
著者
宇野 洋二
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.525-529, 2014 (Released:2014-08-15)
参考文献数
16
被引用文献数
2 5
著者
和田 正義 井上 雄介 平間 貴大
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.31, no.6, pp.591-598, 2013 (Released:2013-08-15)
参考文献数
14
被引用文献数
1 1

This paper presents a new wheel mechanism for the active-caster drive system. The active-caster provides omnidirectional mobility with no using free rolling mechanism. The original active-caster equips with an absolute encoder to detect a wheel orientation and two motors for driving wheel and steering axis independently. A computer system needs to detect an absolute wheel orientation and coordinate velocity components for wheel and steering drive to provide wheel motion in an arbitrary direction. To simplify the wheel control system, a new active-caster mechanism is proposed. A proposed active-caster system includes a ball transmission to distribute a traction velocity to wheel and steering axis mechanically without using an angle sensor or coordinated motor control. In this paper, kinematics of the proposed wheel mechanism is analyzed and mechanical condition for realizing the caster motion is derived. A kinematic model of the proposed active-caster mechanism with a ball transmission is analyzed and a mechanical condition for realizing caster motion is derived. Based on the kinematic model and the mechanical condition, computer simulations of the mechanism are performed. In the simulations, the active-caster shows successful caster motions with no sensor or computer system.
著者
大須賀 公一 石黒 章夫 鄭 心知 杉本 靖博 大脇 大
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.4, pp.491-502, 2010 (Released:2012-01-25)
参考文献数
24
被引用文献数
7 9

In this note, we consider a control system that underlies in a biological system. We point out the existence of the Problem of Inseparability in the control system. To understand the principle of mobile adaptability embedded in the control system, we have to solve the Problem of Indivisibility. To solve the problem, we propose a concept of Implicit control law. Finally, we show the Implicit control law plays an important role for constructing the adaptive function of living thing and robot.