I Climbing and Walking Robots Climbing and Walking Robots Edited by Behnam Miripour In-Tech intechweb.org Published by In-Teh In-Teh Olajnica 19/2, 32000 Vukovar, Croatia Abstracting and non-profit use of the material is permitted with credit to the source. Statements and opinions expressed in the chapters are these of the individual contributors and not necessarily those of the editors or publisher. No responsibility is accepted for the accuracy of information contained in the published articles. Publisher assumes no responsibility liability for any damage or injury to persons or property arising out of the use of any materials, instructions, methods or ideas contained inside. After this work has been published by the In-Teh, authors have the right to republish it, in whole or part, in any publication of which they are an author or editor, and the make other personal use of the work. © 2010 In-teh www.intechweb.org Additional copies can be obtained from: [email protected] First published March 2010 Printed in India Technical Editor: Zeljko Debeljuh Cover designed by Dino Smrekar Climbing and Walking Robots, Edited by Behnam Miripour p. cm. ISBN 978-953-307-030-8 V Preface Nowadays robotics is one of the most dynamic fields of scientific researches. The shift of robotics researches from manufacturing to services applications is clear. During the last decades interest in studying climbing and walking robots has been increased. This increasing interest has been in many areas that most important ones of them are: mechanics, electronics, medical engineering, cybernetics, controls, and computers. Today’s climbing and walking robots are a combination of manipulative, perceptive, communicative, and cognitive abilities and they are capable of performing many tasks in industrial and non- industrial environments. Surveillance, planetary exploration, emergence rescue operations, reconnaissance, petrochemical applications, construction, entertainment, personal services, intervention in severe environments, transportation, medical and etc are some applications from a very diverse application fields of climbing and walking robots. By great progress in this area of robotics it is anticipated that next generation climbing and walking robots will enhance lives and will change the way the human works, thinks and makes decisions. This book presents the state of the art achievments, recent developments, applications and future challenges of climbing and walking robots. These are presented in 26 chapters by authors throughtot the world. The book serves as a reference especially for the researchers who are interested in mobile robots. It also is useful for industrial engineers and graduate students in advanced study. Editor Behnam Miripour VI VII Contents Preface V 1. A Survey of Technologies and Applications for Climbing Robots Locomotion and Adhesion 001 Manuel F. Silva and J. A. Tenreiro Machado 2. Mechanical Synthesis for Easy and Fast Operation in Climbing and Walking Robots 023 Antonio Gonzalez-Rodriguez, Angel G. Gonzalez-Rodriguez and Rafael Morales 3. A Wheel-based Stair-climbing Robot with a Hopping Mechanism 043 Koki Kikuchi, Naoki Bushida, Keisuke Sakaguchi, Yasuhiro Chiba, Hiroshi Otsuka, Yusuke Saito, Masamitsu Hirano and Shunya Kobayashi 4. Motion Control of a Four-wheel-drive Omnidirectional Wheelchair with High Step Climbing Capability 057 Masayoshi Wada 5. Stair Climbing Robots and High-grip Crawler 073 Kan Yoneda, Yusuke Ota and Shigeo Hirose 6. A Climbing-Flying Robot for Power Line Inspection 095 Jaka Katrašnik, Franjo Pernuš and Boštjan Likar 7. A Fuzzy Control Based Stair-Climbing Service Robot 111 Ming-Shyan Wang 8. Evolutionary Multi-Objective Optimization for Biped Walking of Humanoid Robot 127 Toshihiko Yanase and Hitoshi Iba 9. On Adjustable Stiffness Artificial Tendons in Bipedal Walking Energetics 141 Reza Ghorbani and Qiong Wu 10. Mathematical Modelling and Simulation of Combined Trajectory Paths of a Seven Link Biped Robot 165 Ahmad Bagheri, Behnam Miripour-Fard and Peiman Naseradin Mousavi 11. Bipedal Walking Control based on the Assumption of the Point-contact: Sagittal Motion Control and Stabilization 185 Tadayoshi Aoyama, Kosuke Sekiyama, Yasuhisa Hasegawa and Toshio Fukuda VIII 12. Simulated Regulator to Synthesize ZMP Manipulation and Foot Location for Autonomous Control of Biped Robots 201 Tomomichi Sugihara 13. Nonlinear ¥ Control Applied to Biped Robots 213 Adriano A. G. Siqueira, Marco H. Terra and Leonardo Tubota 14. Method to Estimate the Basin of Attraction and Speed Switch Control for the Underactuated Biped Robot 233 Yantao Tian, Limei Liu, Xiaoliang Huang, Jianfei Li and Zhen Sui 15. Zappa, a Compliant Quasi-Passive Biped Robot with a Tail and Elastic Knees 253 Félix Monasterio-Huelin, Álvaro Gutiérrez and Fernando J. Berenguer 16. Quadrupedal Gait Generation Based on Human Feeling for Animal Type Robot 265 Hidekazu Suzuki and Hitoshi Nishi 17. Gait Based Directional Bias Detection of Four-Legged Walking Robots 277 Wei-Chung Teng and Ding-Jie Huang 18. Locomotion analysis of hexapod robot 291 Xilun Ding, Zhiying Wang, Alberto Rovetta and J.M. Zhu 19. In situ self-reconfiguration of hexapod robot OSCAR using biologically inspired approaches 311 Bojan Jakimovski and Erik Maehle 20. Softly Stable Walk Using Phased Compliance Control with Virtual Force for Multi-Legged Walking Robot 333 Qingjiu Huang 21. Biohybrid Walking Microrobot with Self-assembled Cardiomyocytes 351 Jinseok Kim, Eui-Sung Yoon and Sukho Park 22. Theoretical and Experimental Study for Queueing System with Walking Distance 371 Daichi Yanagisawa, Yushi Suma, Akiyasu Tomoeda, Ayako Kimura, Kazumichi Ohtsuka and Katsuhiro Nishinari 23. Intention-Based Walking Support for Paraplegia Patients with Robot Suit HAL 383 Kenta Suzuki, Gouji Mito, Hiroaki Kawamoto, Yasuhisa Hasegawa and Yoshiyuki Sankai 24. Development of Vision Based Person Following Module for Mobile Robots in RT-Middleware 409 Hiroshi Takemura, Zentaro Nemote, Keita Ito and Hiroshi Mizoguchi 25. A-B Autonomy of A Shape-shifting Robot “AMOEBA-I” for USAR 425 Yuechao Wang, Jinguo Liu and Bin Li 26. The Rh-1 full-size humanoid robot: Control system design and Walking pattern generation 445 Mario Arbulú, Dmitry Kaynov and Carlos Balaguer A Survey of Technologies and Applications for Climbing Robots Locomotion and Adhesion 1 A Survey of Technologies and Applications for Climbing Robots 01 Locomotion and Adhesion A Survey of Technologies and Applications for Manuel F. Silva and J. A. Tenreiro Machado Climbing Robots Locomotion and Adhesion ManuelF.SilvaandJ.A.TenreiroMachado ISEP-InstitutoSuperiordeEngenhariadoPorto Portugal 1. Introduction Theinterestinthedevelopmentofclimbingrobotshasgrownrapidlyinthelastyears.Climb- ingrobotsareusefuldevicesthatcanbeadoptedinavarietyofapplications,suchasmain- tenanceandinspectionintheprocessandconstructionindustries. Thesesystemsaremainly adoptedinplaceswheredirectaccessbyahumanoperatorisveryexpensive,becauseofthe needforscaffolding,orverydangerous,duetothepresenceofanhostileenvironment. The mainmotivationsaretoincreasetheoperationefficiency,byeliminatingthecostlyassembly of scaffolding, or to protect human health and safety in hazardous tasks. Several climbing robotshavealreadybeendeveloped,andotherareunderdevelopment,forapplicationsrang- ingfromcleaningtoinspectionofdifficulttoreachconstructions. Awallclimbingrobotshouldnotonlybelight, butalsohavelargepayload, sothatitmay reduceexcessiveadhesionforcesandcarryinstrumentationsduringnavigation. Thesema- chinesshouldbecapableoftravellingoverdifferenttypesofsurfaces,withdifferentinclina- tions,suchasfloors,walls,orceilings,andtowalkbetweensuchsurfaces(Elliotetal.(2006); Sattaretal.(2002)). Furthermore,theyshouldbeableofadaptingandreconfiguringforvari- ousenvironmentconditionsandtobeself-contained. Uptonow,considerableresearchwasdevotedtothesemachinesandvarioustypesofexper- imentalmodelswerealreadyproposed(accordingtoChenetal.(2006),over200prototypes aimed at such applications had been developed in the world by the year 2006). However, wehavetonoticethattheapplicationofclimbingrobotsisstilllimited. Apartfromacouple successfulindustrializedproducts, mostareonlyprototypesandfewofthemcanbefound incommonuseduetounsatisfactoryperformanceinon-sitetests(regardingaspectssuchas theirspeed,costandreliability).Chenetal.(2006)presentthemaindesignproblemsaffecting thesystemperformanceofclimbingrobotsandalsosuggestsolutionstotheseproblems. Themajortwoissuesinthedesignofwallclimbingrobotsaretheirlocomotionandadhesion methods. Withrespecttothelocomotiontype,fourtypesareoftenconsidered:thecrawler,thewheeled, theleggedandthepropulsionrobots. Althoughthecrawlertypeisabletomoverelatively faster,itisnotadequatetobeappliedinroughenvironments. Ontheotherhand,thelegged type easily copes with obstacles found in the environment, whereas generally its speed is lowerandrequirescomplexcontrolsystems. Regardingtheadhesiontothesurface,therobotsshouldbeabletoproduceasecuregripping forceusingalight-weightmechanism. Theadhesionmethodisgenerallyclassifiedintofour 2 Climbing and Walking Robots groups: suctionforce,magnetic,grippingtothesurfaceandthrustforcetype. Nevertheless, Finally, theirapplicationhasalsobeenproposedintheeducation(BellandBalkcom(2006); recentlynewmethodsforassuringtheadhesion,basedinbiologicalfindings,wereproposed. Bernsetal.(2005))andhumancare(Balagueretal.(2005))areasandinthepreventionandfire The vacuum type principle is light and easy to control though it presents the problem of fightingactions(Chenetal.(2006);Nishi(1991)). supplyingcompressedair. Analternative, withcostsintermsofweight, istheadoptionof avacuumpump. Themagnetictypeprincipleimpliesheavyactuatorsandisusedonlyfor 3. PrinciplesofLocomotion ferromagnetic surfaces. The thrust force type robots make use of the forces developed by Inthissectionareanalyzedthecharacteristicsofthefourmainlocomotiontechnologiesim- thrusterstoadheretothesurfaces,butareusedinveryrestrictedandspecificapplications. plementedinclimbingrobots,namelythecrawler,wheeled,leggedandpropulsiontypes. Bearingthesefactsinmind,thischapterpresentsasurveyofdifferentapplicationsandtech- nologiesadoptedfortheimplementationofclimbingrobotslocomotionandadhesiontosur- 3.1 LocomotionusingSlidingSegments(Crawling) faces,focusingonthenewtechnologiesthatarerecentlybeingdevelopedtofulfilltheseob- Withrespecttothelocomotiontype, thesimpleralternativesoftenmakeuseofslidingseg- jectives. The chapter is organized as follows. Section two presents several applications of ments, withsuctioncups(Backesetal.(1997);Cepolinaetal.(2004);Choietal.(2000);Elk- climbing robots. Sections three and four present the main locomotion principles, and the mann et al. (2002); Savall et al. (1999); Zhang et al. (2004); Zhu et al. (2003)) or permanent main"conventional"technologiesforadheringtosurfaces,respectively.Sectionfivedescribes magnets(Yanetal.(1999))thatgrabtosurfaces,inordertomove(Figure1).Themaindisad- recentbiologicalinspiredtechnologiesforrobotadhesiontosurfaces. Sectionsixintroduces vantageofthissolutionisthedifficultyincrossingcracksandobstacles. severalnewarchitecturesforclimbingrobots.Finally,sectionsevenoutlinesthemainconclu- sions. 2. ClimbingRobotsApplications Climbingrobotsaremainlyadoptedinplaceswheredirectaccessbyahumanoperatorisvery expensive,becauseoftheneedforscaffolding,orverydangerous,duetothepresenceofan hostileenvironment. Inthelastdecadesdifferentapplicationshavebeenenvisionedfortheserobots,mainlyinthe areas of cleaning, technical inspection, maintenance or breakdown diagnosis in dangerous environments,orintheoutsideoftallbuildingsandhumanmadeconstructions. Severalclimbingrobotshavealreadybeendevelopedforthefollowingapplicationareas: Fig.1.ROBICENIIIclimbingrobot(Savalletal.(1999)) • Inspection: bridges(Balagueretal.(2005);RobertT.PackandKawamura(1997)),nu- clearpowerplants(Savalletal.(1999);Yanetal.(1999)),pipelines(Parketal.(2003)), windturbines(Rodriguezetal.(2008)),solarpowerplants(Azaiz(2008)),forscanning 3.2 LocomotionusingWheels theexternalandinternalsurfacesofgasoroiltanks(LongoandMuscato(2004b);Park Asecondformoflocomotionistoadoptwheels(GaoandKikuchi(2004);LongoandMuscato et al. (2003); Sattar et al. (2002); Yan et al. (1999)), offshore platforms (Balaguer et al. (2004b); Park et al. (2003); Sánchez et al. (2006); Yan et al. (1999)) (Figure 2). These robots (2005)),andcontainerships(Mondaletal.(2002)); canachievehighvelocities. However,someofthewheeledrobotsthatusethesuctionforce • Testing: performing non-destructive tests in industrial structures (Choi et al. (2000); foradhesiontothesurface,needtomaintainanairgapbetweenthesurfacewheretheyare Kang et al. (2003)), floating production storage oil tanks (Sattar et al. (2008; 2006)), movingoverandtherobotbase. Thistechniquemaycreateproblemseitherwiththelossof planes (Backes et al. (1997); Chen et al. (2005); Robert T. Pack and Kawamura (1997)) pressure, orwiththefrictionwiththesurface, namelyiftheairgapistoosmall, orifsome andships(Armadaetal.(2005);RobertT.PackandKawamura(1997);Sánchezetal. materialisusedtopreventtheairleak(Hiroseetal.(1991)). (2006)); 3.3 LocomotionusingLegs • Civilconstruction:civilconstructionrepairandmaintenance(Balagueretal.(2005)); Athirdformoflocomotionconsistsintheadoptionoflegs.Leggedclimbingrobots,equipped • Cleaning:cleaningoperationsinsky-scrapers(DerricheandKouiss(2002);Elkmannet withsuctioncups,ormagneticdevicesonthefeet,havethedisadvantageoflowspeedandre- al.(2002);GaoandKikuchi(2004);Yanetal.(1999);Zhangetal.(2004);Zhuetal.(2003)), quirecomplexcontrolsystems,butallowthecreationofastrongandstableadhesionforceto forcleaningthewallsandceilingsofrestaurants,communitykitchensandfoodprepa- thesurface.Thesemachinesalsohavetheadvantageofeasilycopingwithobstaclesorcracks rationindustrialenvironments(Cepolinaetal.(2004))andcleaningshiphulls(Fernán- foundintheenvironment(Hiroseetal.(1991)). Structureshavingfromtwouptoeightlegs dezetal.(2002)); arepredominantforthedevelopmentofthesetasks.Theadoptionofalargernumberoflimbs suppliesredundantsupportand,frequently,raisesthepayloadcapacityandsafety.Thesead- • Transport:forthetransportofloadsinsidebuildings(Minoretal.(2000)); vantagesareachievedatthecostofincreasedcontrolcomplexity(regardinglegcoordination), • Security: forreconnaissanceinurbanenvironments(Elliotetal.(2006);Tummalaetal. sizeandweight. Therefore,whensizeandefficiencyarecritical,astructurewithminimum (2002))andinanti-terroristactivities(Lietal.(2007)).