Int. J. Robotics Appl. Technol.最新文献

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A Non-Linear Stiffness Model for Serial and Parallel Manipulators 串联并联机械臂的非线性刚度模型
Int. J. Robotics Appl. Technol. Pub Date : 1900-01-01 DOI: 10.4018/IJRAT.2017010103
Manoj Kumar
{"title":"A Non-Linear Stiffness Model for Serial and Parallel Manipulators","authors":"Manoj Kumar","doi":"10.4018/IJRAT.2017010103","DOIUrl":"https://doi.org/10.4018/IJRAT.2017010103","url":null,"abstract":"The paper presents a methodology to enhance the stiffness analysis of serial and parallel manipulators with passive joints. It directly takes into account the loading influence on the manipulator configuration and, consequently, on its Jacobians and Hessians. The main contributions of this paper are the introduction of a non-linear stiffness model for the manipulators with passive joints, a relevant numerical technique for its linearization and computing of the Cartesian stiffness matrix which allows rank-deficiency. Within the developed technique, the manipulator elements are presented as pseudo-rigid bodies separated by multidimensional virtual springs and perfect passive joints. Simulation examples are presented that deal with parallel manipulators of the Ortholide family and demonstrate the ability of the developed methodology to describe non-linear behaviour of the manipulator structure such as a sudden change of the elastic instability properties buckling.","PeriodicalId":249760,"journal":{"name":"Int. J. Robotics Appl. Technol.","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116933973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Current Work in the Human-Machine Interface for Ergonomic Intervention with Exoskeletons 外骨骼人体工程学干预人机界面的研究现状
Int. J. Robotics Appl. Technol. Pub Date : 1900-01-01 DOI: 10.4018/IJRAT.2017010101
T. Schnieders, R. Stone
{"title":"Current Work in the Human-Machine Interface for Ergonomic Intervention with Exoskeletons","authors":"T. Schnieders, R. Stone","doi":"10.4018/IJRAT.2017010101","DOIUrl":"https://doi.org/10.4018/IJRAT.2017010101","url":null,"abstract":"This literature review of exoskeleton design provides a brief history of exoskeleton development, discusses current research of exoskeletons with respect to the innate human-machine interface, and the incorporation of exoskeletons for ergonomic intervention, and offers a review of needed future work. Development of assistive exoskeletons began in the 1960's but older designs lacked design for human factors and ergonomics and had low power energy density and power to weight ratios. Advancements in technology have spurred a broad spectrum of research aimed at enhancing human performance and assisting in rehabilitation. The review underwent a holistic and extensive search and provides a reflective snapshot of the state of the art in exoskeleton design as it pertains to the incorporation of exoskeletons for ergonomic intervention. Some of the remaining challenges include improving the energy density of exoskeleton power supplies, improving the power to weight ratio of actuation devices, improving the mechanical human-machine interface, and dealing with variability between users.","PeriodicalId":249760,"journal":{"name":"Int. J. Robotics Appl. Technol.","volume":"1936 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129004018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Runtime Verification on Robotics Systems 机器人系统的运行时验证
Int. J. Robotics Appl. Technol. Pub Date : 1900-01-01 DOI: 10.4018/IJRAT.2015010102
Zhijiang Dong, Yujian Fu, Yue Fu
{"title":"Runtime Verification on Robotics Systems","authors":"Zhijiang Dong, Yujian Fu, Yue Fu","doi":"10.4018/IJRAT.2015010102","DOIUrl":"https://doi.org/10.4018/IJRAT.2015010102","url":null,"abstract":"Runtime verification is a technique for generating monitors from formal specification of expected behaviors for the underlying system. It can be applied to automatically evaluate system execution, either on-line or off-line, analyzing extracted execution traces; or it can be used online during operation, potentially steering the application back to a safety region if a property is violated. As a so-called light-weighted formal method, runtime verification bridges the gap between system design and implementation and shorten the distance of software quality assurance between the software testing and model checking and theorem proving. Runtime verification is considered as a highly scalable and automatic technique. Most of current runtime verification research are endeavored on the program context, in other words, on the program side and falls in the implementation level. These applications limited the benefits of runtime verification that bridges the gap among types of applications. With the proliferation of embedded systems and mobile device, dynamically verifying the firmware and mobile apps becomes a new emerging area. Due to the characteristics of runtime verification technique and limitations of the robotics systems, so far, very few research and project are located in the runtime verification on the firmware of embedded systems, which appear in most of robotics systems. Robotics systems are programmed on the firmware and only observed on device. In this paper, the authors first discussed the current runtime verifications on the embedded systems with limitations. After that, a layered runtime verification framework will be presented for the firmware verification. The case study is applied on the commonly recognized educational toolkit – LEGO Mindstorm robotics systems. Runtime Verification on Robotics Systems","PeriodicalId":249760,"journal":{"name":"Int. J. Robotics Appl. Technol.","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124070758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
PID, Fuzzy and Model Predictive Control Applied to a Practical Nonlinear Plant PID、模糊和模型预测控制在实际非线性装置中的应用
Int. J. Robotics Appl. Technol. Pub Date : 1900-01-01 DOI: 10.4018/IJRAT.2016010102
K. Borgeest, P. Schneider
{"title":"PID, Fuzzy and Model Predictive Control Applied to a Practical Nonlinear Plant","authors":"K. Borgeest, P. Schneider","doi":"10.4018/IJRAT.2016010102","DOIUrl":"https://doi.org/10.4018/IJRAT.2016010102","url":null,"abstract":"For the cooling system of a mobile machine with m control variables and with n≤m correction variables different control strategies have been investigated in order to minimize power to save energy and to reduce fan noise with sufficient cooling. The plant is nonlinear and not identified. Three different kinds of controllers have been investigated in several variations, i.e. fuzzy control, PI(D) and model predictive control (MPC). 14 different criteria have been used for evaluation. In many respects a linear controller with fuzzy prediction proved best, in particular the prediction model can handle nonlinear properties of the plant. A problem of advanced control schemes with unidentified plants is the difficulty to prove stability. KeywoRDS Construction Machine, Defuzzification, Fan Control, Fan Noise, Feedforward, Fuzzy Control, Fuzzification, Mamdani, Model Predictive Control, MPC, Nonlinear System, PI Control, PID Control","PeriodicalId":249760,"journal":{"name":"Int. J. Robotics Appl. Technol.","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132958602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Towards a Bio-Inspired Theoretical Linguistics to Model Man-Machine Communication 用仿生理论语言学来模拟人机交流
Int. J. Robotics Appl. Technol. Pub Date : 1900-01-01 DOI: 10.4018/ijrat.2013010102
Gemma Bel Enguix, M. Dolores Jiménez-López
{"title":"Towards a Bio-Inspired Theoretical Linguistics to Model Man-Machine Communication","authors":"Gemma Bel Enguix, M. Dolores Jiménez-López","doi":"10.4018/ijrat.2013010102","DOIUrl":"https://doi.org/10.4018/ijrat.2013010102","url":null,"abstract":"The article provides an overview of what could be a new biological-inspired linguistics. The authors discuss some reasons for attempting a more natural description of natural language, lying on new theories of molecular biology and their formalization within the area of theoretical computer science. The authors especially explore three bio-inspired models of computation –DNA computing, membrane computing and networks of evolutionary processors (NEPs) – and their possibilities for achieving a simpler, more natural, and mathematically consistent theoretical linguistics.","PeriodicalId":249760,"journal":{"name":"Int. J. Robotics Appl. Technol.","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116915837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Formal Modeling and Analysis of Collaborative Humanoid Robotics 协作类人机器人的形式化建模与分析
Int. J. Robotics Appl. Technol. Pub Date : 1900-01-01 DOI: 10.4018/IJRAT.2018010103
Yujian Fu, Zhijiang Dong, Xudong He
{"title":"Formal Modeling and Analysis of Collaborative Humanoid Robotics","authors":"Yujian Fu, Zhijiang Dong, Xudong He","doi":"10.4018/IJRAT.2018010103","DOIUrl":"https://doi.org/10.4018/IJRAT.2018010103","url":null,"abstract":"A humanoid robot is inherently complex due to the heterogeneity of accessory devices and to the interactions of various interfaces, which will be exponentially increased in multiple robotics collaboration. Therefore, the design and implementation of multiple humanoid robotics (MHRs) remains a very challenging issue. It is known that formal methods provide a rigorous analysis of the complexity in both design of control and implementation of systems. This article presents an agent-based framework of formal modeling on the design of communication and control strategies of a team of autonomous robotics, to attain the specified tasks in a coordinated manner. To ensure a successful collaboration of multiple robotics, this formal agent-based framework captures behaviors in Petri Net models and specifies collaboration operations in four defined operations. To validate the framework, a non-trivial soccer bot set was implemented and simulation results were discussed.","PeriodicalId":249760,"journal":{"name":"Int. J. Robotics Appl. Technol.","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125042062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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