DocumentCode :
251614
Title :
A macro-micro controller for pallet picking by an articulated-frame-steering hydraulic mobile machine
Author :
Aref, Mohammad M. ; Ghabcheloo, Reza ; Mattila, Jouni
Author_Institution :
Intell. Hydraulics & Autom. Dept., Tampere Univ. of Technol., Tampere, Finland
fYear :
2014
fDate :
May 31 2014-June 7 2014
Firstpage :
6816
Lastpage :
6822
Abstract :
This paper addresses the macro-micro configuration of a mobile manipulation problem for a forklift; specifically, it investigates pallet picking with visual feedback. A manipulator with limited degrees of freedom and differential constraint mobility, together with the large dimensions of the machine, requires reliable visual feedback (pallet pose) and navigation from relatively large distances. It has been shown that the problem can be divided into two parts in order to solve the related issues based on path following theories and visual servoing. Moreover, visual pallet detection is non-real-time and unreliable, especially due to large distances, unfavorable vibrations, and fast steering. To address these issues, we introduce a simple and efficient method that integrates the vision output with odometry and realizes a smooth and nonstop transition from global navigation to visual servoing. Real-world implementation on a small-sized forklift demonstrates the efficacy of the proposed macro-micro architecture.
Keywords :
feedback; fork lift trucks; manipulators; microcontrollers; mobile robots; navigation; object detection; palletising; position control; robot vision; visual servoing; articulated-frame-steering hydraulic mobile machine; differential constraint mobility; fast steering; global navigation; macro-micro architecture; macro-micro configuration; macro-micro controller; manipulator; mobile manipulation problem; odometry; pallet picking; pallet pose; small-sized forklift; vibrations; vision output; visual feedback; visual pallet detection; visual servoing; Cameras; Manipulators; Mobile communication; Robot kinematics; Visual servoing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Robotics and Automation (ICRA), 2014 IEEE International Conference on
Conference_Location :
Hong Kong
Type :
conf
DOI :
10.1109/ICRA.2014.6907865
Filename :
6907865
Link To Document :
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