Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires
A method of controlling a cooperative positioning system consisting of three industrial manipulators is proposed. The positioned object is suspended with six wires each two of which are connected to each manipulator tip and remotely controlled by an operator with a joystick. In our previous study, c...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2023-08-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/89/924/89_23-00097/_pdf/-char/en |
| _version_ | 1797668902085328896 |
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| author | Yuhi HARA Kosuke TORIYA Shunsuke HAMASAKI Hisashi OSUMI |
| author_facet | Yuhi HARA Kosuke TORIYA Shunsuke HAMASAKI Hisashi OSUMI |
| author_sort | Yuhi HARA |
| collection | DOAJ |
| description | A method of controlling a cooperative positioning system consisting of three industrial manipulators is proposed. The positioned object is suspended with six wires each two of which are connected to each manipulator tip and remotely controlled by an operator with a joystick. In our previous study, cooperative positioning system with three manipulators has already been developed. However, positioning errors of the object inevitably remain because it is difficult to sufficiently compensate for the geometrical errors within the mechanical system. Therefore, the compensation of the object position by a joystick control is essential. For achieving the joystick control, it is necessary to keep all the tensions positive for the stable positioning. However, if the operator moves the object in arbitrary directions, some wire tensions may become zero because it is impossible to know the positioning error in advance. Therefore, a new control method for not only achieving the positioning of the object but also keeping the proper wire tensions has been developed by two joystick control modes, position control mode and tension control mode. The joystick has three degrees of freedom and control the three translational position parameters or orientation parameters by a selector switch in position control mode. In tension control mode, the minimum wire tension among six is increased by utilizing the kinematical redundancy of the system according to the joystick input. The developed control system has been applied to our experimental system and the effectiveness of the proposed method was verified. |
| first_indexed | 2024-03-11T20:36:19Z |
| format | Article |
| id | doaj.art-697744067a3b478cb937a7ff30c34fc4 |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-03-11T20:36:19Z |
| publishDate | 2023-08-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-697744067a3b478cb937a7ff30c34fc42023-10-02T06:05:26ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612023-08-018992423-0009723-0009710.1299/transjsme.23-00097transjsmeJoystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wiresYuhi HARA0Kosuke TORIYA1Shunsuke HAMASAKI2Hisashi OSUMI3Chuo UniversityChuo UniversityChuo UniversityChuo UniversityA method of controlling a cooperative positioning system consisting of three industrial manipulators is proposed. The positioned object is suspended with six wires each two of which are connected to each manipulator tip and remotely controlled by an operator with a joystick. In our previous study, cooperative positioning system with three manipulators has already been developed. However, positioning errors of the object inevitably remain because it is difficult to sufficiently compensate for the geometrical errors within the mechanical system. Therefore, the compensation of the object position by a joystick control is essential. For achieving the joystick control, it is necessary to keep all the tensions positive for the stable positioning. However, if the operator moves the object in arbitrary directions, some wire tensions may become zero because it is impossible to know the positioning error in advance. Therefore, a new control method for not only achieving the positioning of the object but also keeping the proper wire tensions has been developed by two joystick control modes, position control mode and tension control mode. The joystick has three degrees of freedom and control the three translational position parameters or orientation parameters by a selector switch in position control mode. In tension control mode, the minimum wire tension among six is increased by utilizing the kinematical redundancy of the system according to the joystick input. The developed control system has been applied to our experimental system and the effectiveness of the proposed method was verified.https://www.jstage.jst.go.jp/article/transjsme/89/924/89_23-00097/_pdf/-char/enjoystick controlcooperative positioning systemkinematical redundancywire susupension system |
| spellingShingle | Yuhi HARA Kosuke TORIYA Shunsuke HAMASAKI Hisashi OSUMI Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires Nihon Kikai Gakkai ronbunshu joystick control cooperative positioning system kinematical redundancy wire susupension system |
| title | Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires |
| title_full | Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires |
| title_fullStr | Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires |
| title_full_unstemmed | Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires |
| title_short | Joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires |
| title_sort | joystick control using redundant degrees of freedom of a cooperative system consisting of three manipulators with six wires |
| topic | joystick control cooperative positioning system kinematical redundancy wire susupension system |
| url | https://www.jstage.jst.go.jp/article/transjsme/89/924/89_23-00097/_pdf/-char/en |
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