检索结果-内蒙古大学图书馆

JOURNAL OF INTELLIGENT MANUFACTURING 1997年第5期8卷 345-356页

作者： Janusz, B Institute for Real-Time Computer Systems and Robotics Department of Computer Science University of Karlsruhe Karlsruhe Germany

A method is presented for the model-based redesign of enterprises. It consists of two main steps, the initialization step and the optimization step. During the initialization step, the processes are modelled and analysed. During the optimization step, the optimal configuration is found for the possible modifications of the processes. Emphasis is placed on the process analysis. The proposed approach is based on activity chains which describe the set of activities needed for the achievement of a given gear, and their execution order necessary to guarantee a low processing time. An algorithm is presented for filtering such activity chains from an enterprise model. It is based on graph theory and corresponds to the solution of an optimization problem, whereby the sum of weights of ail edges belonging to the solution graph should be maximized under some given constraints. Because of the high complexity of the problem, some complexity-reducing measures are presented, measures that arise from the earlier problem analysis.

关键词： process redesign process analysis activity chain graph theory

来源：评论

学校读者我要写书评

暂无评论

AN INTEGRATED APPROACH TO SOFTWARE systems PLANNING AND SELECTION BASED ON CIMOSA MODELS

引用

CONTROL ENGINEERING PRACTICE 1995年第1期3卷 97-103页

作者： NAEGER, G REMBOLD, U Department of Computer Science Institute for Real-Time Computer Systems and Robotics University of Karlsruhe 76128 Karlsruhe Germany

Strong international competition forces enterprises to reduce organizational overhead and cost. Today's industrial practices allow, in general, only the selection of whole planning and control systems for CIM (e.g., CAD systems, PP&C systems,...). These systems can be adapted only in a limited range to the user requirements. With the introduction of executable enterprise models to the industrial environment, it is expected that it will be possible to design tailored CIM systems built of standardized software modules which will lead to higher complexity of the planning process for software systems. Thus, today's planning and selection approaches will face more and more problems. In order to master the increasing complexity of the planning of software systems for enterprises, new planning methods and tools are required. An integrated approach to software system planning and selection based on CIMOSA enterprise models was developed. The underlying idea of the approach is the conversion of the planning problem into an equivalent constraint satisfaction problem. The conversion process can be accomplished fully automatically.

关键词： ENTERPRISE MODELING CIMOSA RESOURCE SELECTION

来源：评论

学校读者我要写书评

暂无评论

Fast motion planning by parallel processing - A review

引用

JOURNAL OF INTELLIGENT & ROBOTIC systems 1997年第1期20卷 45-69页

作者： Henrich, D Institute for Real-Time Computer Systems and Robotics Computer Science Department University of Karlsruhe Kaiserstrasse 12 D-76128 Karlsruhe Germany

One of the many features needed to support the activities of autonomous systems is the ability to plan motion. This enables robots to move in their environment securely and to accomplish given tasks. Unfortunately, the control loop comprising sensing, planning, and acting has not yet been closed for robots in dynamic environments. One reason involves the long execution times of the motion planning component. A solution for this problem is offered by the use of highly parallel computation. Thus, an important task is the parallelization of existing motion planning algorithms for robots so that they are suitable for highly parallel computation. In several cases, completely new algorithms have to be designed, so that a parallelization is feasible. In this survey, we review recent approaches to motion planning using parallel computation. As a classification scheme, we use the structure given by the different approaches to the robot's motion planning. For each approach, the available parallel processing methods are discussed. Each approach is assigned a unique class. Finally, for each research work referenced, a list of keywords is given.

关键词： robotics autonomous systems parallel algorithms parallelism and concurrency motion planning review

来源：评论

学校读者我要写书评

暂无评论

A concept for an intelligent and fault-tolerant robot system

引用

Journal of Intelligent and Robotic systems 1988年第3期1卷 259-286页

作者： Hörmann, A. Hugel, Th. Meier, W. Institute for Real-Time Computer Control Systems and Robotics Faculty of Informatics University of Karlsruhe Karlsruhe Germany

A concept for the intelligent control of subsystems of a flexible assembly cell is presented. Unknown or uncertain data about the real world may lead towards failure during an assembly task. Therefore, a fault tolerant system must be capable of reacting immediately to error situations. Thus, the major topic of this paper is the dynamic handling of unforeseen situations during realtime activities. This will be achieved by combining sensor guided actions with an advanced autonomous supervision system. Experimental results will be derived from the mobile two-arm robot system KAMRO of the institute for real-time computer Control systems and robotics, University of Karlsruhe, Federal Republic of Germany. © 1988 Kluwer Academic Publishers.

关键词： computer control systems

来源：评论

学校读者我要写书评

暂无评论

A MULTIAGENT APPROACH WITH DISTRIBUTED FUZZY-LOGIC CONTROL

引用

computerS IN INDUSTRY 1995年第3期26卷 219-227页

作者： BOHNER, P Institute for Real-Time Computer Systems and Robotics Faculty for Informatics University of Karlsruhe Kaiserstr. 12 76128 Karlsruhe Germany

The use of manipulator systems with many degrees of freedoms is essential to expand the field of potential applications. This paper presents a distributed approach for executing task-level programs for cooperating manipulators or one-arm systems with many degrees of freedom. At task level, only the movement of the objects to be manipulated is specified. The according manipulator motions are then calculated by assigning local intelligence to each joint. The local intelligence enables the joint agents to calculate in parallel their appropriate movements to make the end effector reach the desired position. During execution, each joint evaluates sensor data to compensate for execution errors, to react on unexpected obstacles and to provide the manipulator coordination. Therefore, a distributed fuzzy rule base has been developed. As this local evaluation may lead to non-optimal overall behavior of the manipulator, the joint agents communicate to provide global suboptimality.

关键词： DEPENDENT AGENTS DISTRIBUTED AGENTS REACTIVE AGENTS PLAN-BASED AGENTS DISTRIBUTED CONTROL DISTRIBUTED ARTIFICIAL INTELLIGENCE

来源：评论

学校读者我要写书评

暂无评论

AN ACTION-BASED PROCESS MODEL FOR DEXTEROUS MULTIFINGER HANDS

引用

JOURNAL OF INTELLIGENT & ROBOTIC systems 1991年第3期4卷 201-219页

作者： WOHLKE, G BRAUN, T 1. Institute for Real-Time Computer Control Systems and Robotics Faculty for Informatics University of Karlsruhe 7500 Karlsruhe Germany

In this article, the development of an action-based process model is described which was especially tailored to the needs of modelling and simulating multifinger hands. The research has been concerned with a description technique using constraints for modelling the working environment and with the design of an appropriate process model for simulating complex movements of manipulation objects with multifinger hands. The paper presents the results of an object-oriented approach to the proposed model and consists of two parts: a constraint net that describes the connections and relations between cell components (robots, grippers, objects) in the working environment and a propagation algorithm that computes the new locations regarding the modifications and logical dependencies.

关键词： SYSTEM SIMULATION PROCESS MODEL CONSTRAINT NET PROPAGATION ALGORITHM OBJECT-ORIENTED PROGRAMMING

来源：评论

学校读者我要写书评

暂无评论

Exploring the Potential of LLM-based Chatbots for Task Scheduling in Robot Operations

Exploring the Potential of LLM-based Chatbots for Task Sched...

引用

IEEE International Conference on Autonomous Robot systems and Competitions (ICARSC)

作者： Catarina Rema Armando Sousa Heber Sobreira Pedro Costa Manuel F. Silva CRIIS - Centre for Robotics in Industry and Intelligent Systems INESC TEC - Institute for Systems and Computer Engineering Technology and Science Porto Portugal Faculty of Engineering University of Porto (FEUP) Porto Portugal ISEP Polytechnic of Porto rua Dr. António Bernardino de Almeida Porto Portugal

ISBN: (数字)9798331538606

ISBN: (纸本)9798331538613

The rise of Industry 4.0 has revolutionized manufacturing by integrating real-time data analysis, artificial intelligence (AI), automation, and interconnected systems, enabling adaptive and resilient smart factories. Autonomous Mobile Robots (AMRs), with their advanced mobility and navigation capabilities, are a pillar of this transformation. However, their deployment in job shop environments adds complexity to the already challenging Job Shop Scheduling Problem (JSSP), expanding it to include task allocation, robot scheduling, and travel time optimization, creating a multi-faceted, non-deterministic polynomial-time hardness (NP-hard) problem. Traditional approaches such as heuristics, meta-heuristics, and mixed integer linear programming (MILP) are commonly used. Recent AI advancements, particularly large language models (LLM), have shown potential in addressing these scheduling challenges due to significant improvements in reasoning and decision-making from textual data. This paper examines the application of LLM to tackle scheduling complexities in smart job shops with mobile robots. Guided by tailored prompts inserted manually, LLM are employed to generate scheduling solutions, being these compared to an heuristic-based method. The results indicate that LLM currently have limitations in solving complex combinatorial problems, such as task scheduling with mobile robots. Due to issues with consistency and repeatability, they are not yet reliable enough for practical implementation in industrial environments. However, they offer a promising foundation for augmenting traditional approaches in the future.

关键词： Job shop scheduling Service robots Large language models Chatbots real-time systems Mobile robots Resource management Reliability Autonomous robots Smart manufacturing

来源：评论

学校读者我要写书评

暂无评论

Model-based diagnosis of complex systems: Structuring and temporal reasoning

引用

Annual Review in Automatic Programming 1991年第PART 1期16卷 41-45页

作者： Hübner, T Institute for Real Time Computer Systems and Robotics Faculty of Computer Science University of Karlsruhe Karlsruhe Germany

Model-based diagnosis of industrial applications (i.e., complex systems) has to face a lot of problems inherent in complexity. Most applications involve thousands of components and are dynamic. The approach outlined in this paper is based on semantic nets representing causal and temporal knowledge to be used for fault diagnosis. A view-and a hierarchy-concept serve for structured modelling and focused diagnosis. An efficient diagnostic inference mechanism is based on a pre-computation phase, where diagnostic knowledge is restructured to grant efficient access operations during a diagnostic session phase. © 1992.

关键词： artificial intelligence causal reasoning expert systems Failure detection model-based modeling structuring temporal reasoning

来源：评论

学校读者我要写书评

暂无评论

real-time MAP REFINEMENT BY USE OF SONAR AND ACTIVE STEREO-VISION

引用

robotics AND AUTONOMOUS systems 1995年第1期16卷 47-56页

作者： WALLNER, F DILLMANN, R Institute for Real-Time Computer Systems & Robotics Department of Computer Science University of Karlsruhe P.O. Box 6980 76128 Karlsruhe 1 Germany

A mobile robot that navigates in an unknown or changing environment needs to maintain a dynamic model of its environment in order to update existing knowledge about the world. This paper addresses the problem of how to update a local model of the perceivable environment of a mobile robot and how to produce a description of newly perceived obstacles. A new hybrid concept is presented which combines the advantages of parameter- and grid-based modelling techniques. By introducing local grids that only cover areas where new obstacles are expected, the complexity of the map building process is significantly reduced. Local grids can be used in dynamic environment which was not possible with earlier grid-modelling approaches. The information, grids are constructed from, is provided by ultrasonic range sensors and an active stereo-vision system, Fusing information of both sensor systems is advantageous, especially due to their complementary error characteristics concerning range and angular resolution.

关键词： MOBILE ROBOT ACTIVE SENSING MAP BUILDING SENSOR FUSION

来源：评论

学校读者我要写书评

暂无评论

An integrated method for planning smooth collision-free trajectories for robot arms 3

An integrated method for planning smooth collision-free traj...

引用

3rd Annual Conference of AI, Simulation and Planning in High Autonomy systems

作者： Zhang, Jianwei Institute for Real-Time Computer Systems and Robotics Faculty of Computer Science University of Karlsruhe Germany

ISBN: (纸本)0818626755

A method for planning motions of robot arms is presented which considers not only the collision-avoidance but also robot's dynamic aspects. Based on the concept of configuration space, robot motions are planned at the topological and geometric level consecutively. At the topological level, the boundaries of the Configurationspace obstacles (C-obstacles) are computed and approximately represented while the complement of the C- obstacles, i.e. the free-space is divided into Empty Blocks (EBs). Linking all the connected EBs, we get a net called characteristic net. Given the initial and goal configuration of the robot, routes consisting of EBs (EB-routes) are searched in the characteristic net. At the geometric level, smooth trajectories are generated along EB-routes using B- splines while avoiding collisions with local C-obstacles. © 1992 IEEE.

关键词： Topology

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：