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Slip Control during Slope Descent fo...

Loret de Mola Lemus, Daniel.

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Slip Control during Slope Descent for a Rover with Plowing Capability.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Slip Control during Slope Descent for a Rover with Plowing Capability./
Author:	Loret de Mola Lemus, Daniel.
Description:	112 p.
Notes:	Source: Masters Abstracts International, Volume: 52-05.
Contained By:	Masters Abstracts International52-05(E).
Subject:	Engineering, Robotics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1527592
ISBN:	9781303796340

Slip Control during Slope Descent for a Rover with Plowing Capability.
Loret de Mola Lemus, Daniel.

Slip Control during Slope Descent for a Rover with Plowing Capability. - 112 p.

Source: Masters Abstracts International, Volume: 52-05.

Thesis (M.Sc.)--Carnegie Mellon University, 2013.

Recent efforts in planetary robotic exploration aim toward craters, skylights, and other depressions with challenging terrain conditions. The access to such places requires traversing on extreme slopes where high levels of slip greatly hamper rover mobility and control. To successfully reach valuable targets such as water ice and mineral outcrops in these locations, slip must be promptly arrested. The work presented here develops an automatic system for a plowing-capable rover that controls slip during descent on steep unconsolidated slopes.

ISBN: 9781303796340Subjects--Topical Terms:

1018454
Engineering, Robotics.

Slip Control during Slope Descent for a Rover with Plowing Capability.
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020 $a 9781303796340
035 $a (MiAaPQ)AAI1527592
035 $a AAI1527592
040 $a MiAaPQ $c MiAaPQ
100 1 $a Loret de Mola Lemus, Daniel. $3 2096207
245 1 0 $a Slip Control during Slope Descent for a Rover with Plowing Capability.
300 $a 112 p.
500 $a Source: Masters Abstracts International, Volume: 52-05.
500 $a Adviser: David Wettergreen.
502 $a Thesis (M.Sc.)--Carnegie Mellon University, 2013.
520 $a Recent efforts in planetary robotic exploration aim toward craters, skylights, and other depressions with challenging terrain conditions. The access to such places requires traversing on extreme slopes where high levels of slip greatly hamper rover mobility and control. To successfully reach valuable targets such as water ice and mineral outcrops in these locations, slip must be promptly arrested. The work presented here develops an automatic system for a plowing-capable rover that controls slip during descent on steep unconsolidated slopes.
520 $a The slip control system is implemented around the robot's plow, and has two main components: a slip estimation subsystem and the slip controller. Slip estimation is performed through a visual odometry algorithm based on monocular optical flow. Two approaches were explored for the slip controller: PID and fuzzy logic control. The design of the controllers was aided by a model of the rover-terrain system formulated specifically for this purpose.
520 $a Field testing was carried out on conditions relevant to lunar crater exploration. The experimental results showed that the control system is able to keep slip to a minimum for different commanded vehicle speeds and slopes as steep as 31°. As a consequence, this work expands current rover mobility and control capabilities by enabling precise descent on steep slopes of unconsolidated material.
590 $a School code: 0041.
650 4 $a Engineering, Robotics. $3 1018454
650 4 $a Engineering, System Science. $3 1018128
690 $a 0771
690 $a 0790
710 2 $a Carnegie Mellon University. $3 1018096
773 0 $t Masters Abstracts International $g 52-05(E).
790 $a 0041
791 $a M.Sc.
792 $a 2013
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1527592