简介:ThispaperpresentsourexperienceindevelopingandimplementingInternetteleroboticssystem.InternetteleroboticssystemreferstoarobotsystemcontrolledandmonitoredremotelythroughtheInternet.Arobotmanipulatorwithfivedegreesoffreedom,calledMentor,isemployed.Client-serverarchitectureischosenasaplatformforourInternetteleroboticssystem.Threegenerationsofteleroboticssystemshaveevolvedinthisresearch.ThefirstgenerationwasbasedonCGIandtwotieredarchitectures,whereaclientpresentsaGraphicalUserInterfacetotheuser,andutilizestheuser'sdataentryandactionstoperformrequeststorobotserverrunningonadifferentmachine.ThesecondgenerationwasdevelopedusingJava.WealsoemployJava3Dforcreatingandmanipulating3Dgeometryofmanipulatorlinks,andforconstructingthestructuresusedinrenderingthatgeometry,resultingin3Drobotmovementsimulationpresentedtotheusers(clients)throughtheirwebbrowser.RecentdevelopmentinourInternetteleroboticsincludesobjectrecognitionthroughimagecapturedbyacamera,whichposeschallengingproblem,givingtheundeterministiclatencyoftheInternet.ThethirdgenerationiscenteredaroundtheuseofCORBAfordevelopmentplatformofdistributedinternetteleroboticssystem,aimedatdistributingtaskofteleroboticssystem.
简介:Internet浪潮正席卷全球。从目前观之,其势将一浪高过一浪,经久不衰。人们从不同角度来观察和评论它。有人说"Internet网的出现和发展是人类第二次工业革命,将把人类文明推向一个新阶段。"有人云:"Internet网虽不是信息超高速公路,但它是未来信息超高速公路的雏形。"有人干脆就把它叫做"当代的信息超速公路"。到目前为止,Internet网已遍及世界150多个国家,联接6万个计算机网络,拥有l,500万台计算机和1亿用户,成为世界上最大的计算机网络。预计到2000年,该网用户可达到5亿。为了解决通信线路拥塞问题,英
简介:ThisworkhasoriginallybeendoneintheP.R.China(WuhanTechnicalUniversityofSurveyingandMapping)andinHongKong(ChineseUniversityofHongKong).Prof.LinHuigaveusefuladvice.Mr.HanHaiyang,andMs.ChenLilihelpedworkwiththeimplementationofprototypesystem.WealsothanktheSwissNationalScienceFoundationforitsfinancialsupportandacknowledgethecommentsofDr.AndreasGeppertandProf.KlausR.Dittrichonanearlierversionofthispaper.
简介:摘要基于Internet技术的Intranet技术的飞速发展正在改变着企业内部及企业之间共享信息的方式,它能够将公司与其员工、客户、投资商和供应商的通信以一种近乎完美的形式结合在一起;尽管Intranet技术是一种比Internet发展更为迅速的技术,但是Intranet建立的传统模式却存在着许多弊端,如,淡化了LAN接入Internet不同方案间的本质差别,忽略了Intranet作为企业组织行为的表现,淡化了平台的变迁等,因此有必要对Intranet的结构设计部署及框架进行更深层次的探讨与研究。tranet的核心技术是Web,是指采用Intranet技术建立起来的企业内部网络。
简介:ThehardwarestructureandsoftwarefunctionofintelligencedoormonitoringcontrolsystemsonInternetisexpounded.Theremotemanagingfunction,databasefunction,andtherealizationofdialingusersareintroduced.Theresetcardisinstalledtoimprovereliability.Thedesignofthesystemisreasonableandreliable.Resultsshowedthat10percentofthelineinvestmenthavebeencutoff.