this paper chiefly studies the problem of formation keep and Anti-Collision control of mobile multi-robots in an unknown environment. Algorithm combining global and local situation is used in path planning. Based on a...
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this paper chiefly studies the problem of formation keep and Anti-Collision control of mobile multi-robots in an unknown environment. Algorithm combining global and local situation is used in path planning. Based on a global system path planning, each robot plans and performs its movement dynamically by adapting some distributive work mechanic according to the movement characteristics, thus when encounter some obstacles, the formation can be dissolved and then restore as soon as possible, and at the precondition of not to affect the team progress, destruction to the formation is reduced as much as possible, and thus multiple robot group can move safely and without collision.
Meetings take a large amount of time, and frequently, meeting facilitators are called in to help steer the meeting in the right direction. Unfortunately, facilitation is still something of an art. To assist facilitato...
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Meetings take a large amount of time, and frequently, meeting facilitators are called in to help steer the meeting in the right direction. Unfortunately, facilitation is still something of an art. To assist facilitators, the thinkLet technique has been proposed. through the use of thinkLets, facilitators may plan the meeting beforehand, deciding which activities to perform at each point. However, designing a meeting is not an easy task, especially for novice facilitators. In this paper we present AgendBuilder, a system to assist the design of meetings, electronic or otherwise, using thinkLets and compatibility rules. the system helps facilitators select and link thinkLets together in and orderly fashion, designing the meeting in the process.
A constraint-based sensor network nodes particle swarm search localization algorithm (CPL) is presented. First of all, a constraint domain of an unknown node must be determined; then the positions which meet specific ...
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A constraint-based sensor network nodes particle swarm search localization algorithm (CPL) is presented. First of all, a constraint domain of an unknown node must be determined; then the positions which meet specific criteria is searched out by particle swarm optimization algorithm and the searching results within the constraint domain are recorded; Finally, the unknown node's localization can be obtained by calculating the average recording results. As is shown in the experiment results, CPL has strong robustness, and comparing with normal schemes such as least square method (LS), CPL's positioning accuracy can improve 50% when the ranging error is 35%.
Lots of collaborative works are developed by workflow at present. the modeling of workflow is mainly by Petri Net. this paper studies the test coverage of collaborative workflow system to improve the system quality. B...
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Lots of collaborative works are developed by workflow at present. the modeling of workflow is mainly by Petri Net. this paper studies the test coverage of collaborative workflow system to improve the system quality. By analyzing many Petri-Net models, the paper puts forward generic advance Petri Net model. And other workflow Petri Net models can be compatible withthe generic Petri Net. then test coverage strategy is considered and test case is designed according to the strategy. this method not only can meet the requirement of test coverage, but also can assist test case design and further execution of test case. Finally, a typical example is introduced to illustrate effectiveness of this method in collaborative workflow application.
Fulfilling composability and reusability requirements is one of the main challenges of service-oriented software engineering. this paper describes research which applies a MDA based-process to support the development ...
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Fulfilling composability and reusability requirements is one of the main challenges of service-oriented software engineering. this paper describes research which applies a MDA based-process to support the development of specific middleware services in WGWSOA infrastrucuture. this process aims to comply with EDOC and RM-ODP profiles in order to guide specific services development of an architecture based on middleware services for collaborative applications. We also evaluate if the process deployment could enhance composability and reusability requirements.
In collaborative environment, to complete a business often needs cross-organizational cooperation. Traditional workflow modeling methods cannot express this kind of cooperation completely. Furthermore, current workflo...
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In collaborative environment, to complete a business often needs cross-organizational cooperation. Traditional workflow modeling methods cannot express this kind of cooperation completely. Furthermore, current workflow systems lack adaptability and flexibility. Firstly, this paper made use of the basic cooperative unit and virtual cooperative unit to model cooperation within one organization or among organizations. then, it used knowledge related to them to express the cooperation. After that, a collaborative process based on cooperative units meta-model was proposed. On the basis of the meta-model, a knowledge-based adaptive collaborative work system implementation framework was designed. In this framework, knowledge management for cooperative units was involved, which give collaborative process better adaptability and flexibility.
In this paper, it proposes a new energy-efficient, reliable topological clustering algorithm (ERCTNA), which analysis the reliability of wireless sensor networks at the present stage factors and improve the original L...
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In this paper, it proposes a new energy-efficient, reliable topological clustering algorithm (ERCTNA), which analysis the reliability of wireless sensor networks at the present stage factors and improve the original LEACH protocol. ERCTNA algorithm can balance the cluster head of energy load and increase the reliability of the network topology through setting up auxiliary cluster head node and optimizing information transfer mode. this model improves the traditional long-distance communication in wireless sensor networks to bring the energy of the excessive wear and tear issues, effectively extending the life cycle of the entire network to improve the reliability of wireless sensor networks.
this paper addresses a need to increase competitiveness in design chains. designers are focusing their efforts in the reduction of a number of factors: product development time, engineering change costs, and pilot run...
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this paper addresses a need to increase competitiveness in design chains. designers are focusing their efforts in the reduction of a number of factors: product development time, engineering change costs, and pilot run time. the approach in this study provides flexibility of New Product design for Small Series Production. the work focuses on the use postponement design to enable quick response and cost effectiveness. the field studied is luggage design. An evaluation procedure is proposed which will adjust component specifications to increase their degree of availability and substitution. Practical simulations are applied in a luggage design center. the contribution of this work is to shorten the lead-time of design operations and to thereby reduce costs and increase competitiveness.
Animation design is a complicated group project which usually has a long lifecycle, involves huge participants and has diversified media data. In this paper, the idea of collaborative design is brought into the proces...
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Animation design is a complicated group project which usually has a long lifecycle, involves huge participants and has diversified media data. In this paper, the idea of collaborative design is brought into the process of animation design, for finding the difficulties and low efficient sectors caused by the lack of collaboration during the whole design process, withthe purpose of questing for appropriate solutions to collaboration. Related technologies of collaborative application to four aspects, including pre-creation, task allocation, data management and collaborative perception, are discussed, in order to improve efficiency, and enhance communications and data sharing to some extent. Finally, two instances about collaborative innovation of character relationship in scripts and animation scene design with collaborative template are given, so the perspective that animation design will be a new domain for researches and applications of collaboration is indicated.
An important aspect of Ubiquitous Computing (UbiComp) is augmenting people and environments with computational resources which provide information and services unobtrusively whenever and wherever required. In line wit...
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An important aspect of Ubiquitous Computing (UbiComp) is augmenting people and environments with computational resources which provide information and services unobtrusively whenever and wherever required. In line withthe vision of UbiComp, we have developed a multi-user location-awareness system by following a user-centred design and evaluation method. In this paper we discuss the development of such a system that allows users to share informative feedback about their current geographical location. the proposed system can be used by various users, for example family members, relatives or a group of friends, in order to share the information related to their locations and to interact with each other. It is intended that this type of system in the future will become a typical part of the Smart Home environment.
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