全向運動之家用機器人分享控制器設計

Shared-Controller Design for an Omnidirectional Interactive Robot

林明翰(Ming-Han Lin)

指導教授 ： 宋開泰

國立交通大學/電機學院/電機與控制工程系所/碩士(2014年)

https://doi.org/10.6842/NCTU.2014.00694

摘要

透過機器人身上所裝置的單一攝影機來進行移動式機器人遠距遙控時，由於僅依賴有限的視野進行遙控，很容易導致機器人碰撞障礙物。因此，本論文藉由遙控與自主控制系統的分享控制設計，輔助使用者控制機器人的運動，降低操作的難度，並提升在複雜環境中移動效率。全向式移動平台的優勢在於能夠在空間中保持一定的朝向並進行任意方向的移動，本論文透過智慧型平板電腦來設計人機介面，讓使用者可以透過互動式的觸碰螢幕來介入全向式移動機器人的運動控制。本論文透過計算使用者的信心因子(Confidence factor)來決定使用者與自主系統之間的互動增益分布，達成分享控制器的目標。機器人自主系統的輔助能夠補足使用者在遙控全向式機器人時現場環境資訊不足所造成缺失。論文中以實驗驗證所設計之分享控制系統在全向式移動機器人遠距遙控的性能，實驗結果顯示分享控制可以協助使用者更容易控制機器人並更精準遙控機器人到目標位置。

關鍵字

分享控制 ； 遠端遙控 ； 全向運動機器人 ； 雙臂機器人

並列摘要

It is usually difficult to remotely control of a mobile robot using only an onboard camera. The robot can easily bump into an obstacle due to limited view angle of the on-site scene. The thesis presents a shared-control architecture for effective remote control an omnidirectional mobile platform. The platform is able to move in any direction without changing robot’s heading, such that a stable camera scene is available for remote control. A user interface is designed to use smart phone/tablet to remote control the robot by the interactive touch screen. The proposed controller determines the human and robot interactive gains by computing user’s confidence factor. In this approach, the robot assists a user to manipulate its motion, and compensates local insufficiency of human remote control for omnidirectional mobility. The experiment validates the proposed design and demonstrates that shared-control approach of an omnidirectional platform can have practical use for home service tasks.

並列關鍵字

shared-control ； remote control ； mobile robots ； mobile manipulator

參考文獻

[1] S. Hayati and S. T. Venkataraman, “Design and Implementation of a Robot Control System with Traded and Shared Control Capability,” in Proc. of 1989 IEEE International Conference on Robotics and Automation, Scottsdal ,AZ, USA, May 14-19, 1989, pp. 1310–1315.

[2] David A. Abbink, Mark Mulder and Erwin R. Boer, “Haptic Shared Control: Smoothly Shifting Control Authority?” Cognition, Technology & Work, Springer-Verlag, March 01, 2012, pp.19-28.

[3] Mark Mulder, David A. Abbink and Erwin R. Boer, “Sharing Control with Haptics: Seamless Driver Support From Manual to Automatic Control,” Human Factors: The Journal of the Human Factors and Ergonomics Society, May 3, 2012.

[8] Hyun K. Kim , S. James Biggs, David W. Schloerb, Jose M. Carmena, Mikhail A. Lebedev, Miguel A. L. Nicolelis and Mandayam A. Srinivasan, “Continuous Shared Control for Stabilizing Reaching and Grasping With Brain-Machine Interfaces,” IEEE Transactions on Biomedical Engineering, Vol. 53, No. 6, pp. 1164-1173, June 2006.

[13] Henri Boessenkool, David A. Abbink, Cock J.M. Heemskerk and Frans C.T. van der Helm, “Haptic Shared Control Improves Tele-Operated Task Performance towards Performance in Direct Control,” in Proc. of 2011 IEEE World Haptics Conference, Istanbul, Turkey, June 21-24, 2011, pp. 433-438.