使用单板机控制生产线产品计数

介绍了利用单片机系统对生产线上产品进行计数并实时显示结果的一种实现方法。     

基于Web的产品定制与仿真系统

为了在大规模定制环境下,帮助企业满足顾客的个性化和定制化的需求,提出了一种基于Web的产品定制与仿真系统,让用户可以在智能设计评估系统的指导下通过Internet定制自己的产品,然后通过仿真平台自动调用相应的仿真工具对设计结果进行仿真,仿真结果交由企业专门人员评价后返回给顾客。对客户需求驱动产品配置、智能设计评估系统知识库的建立和仿真平台柜架的具体实现技术进行了研究,并且给出了本系统的一个原型系统实例。     

Human-centric design personalization of 3D glasses frame in markerless augmented reality

This paper presents a virtual try-on system based on augmented reality for design personalization of facial accessory products. The system offers several novel functions that support real-time evaluation and modification of eyeglasses frame. 3D glasses model is embedded within video stream of the person who is wearing the glasses. Machine learning algorithms are developed for instantaneous tracking of facial features without use of markers. The tracking result enables continuously positioning of the glasses model on the user’s face while it is moving during the try-on process. In addition to color and texture, the user can instantly modify the glasses shape through simple semantic parameters. These functions not only facilitate evaluating products highly interactive with human users, but also engage them in the design process. This work has thus implemented the concept of human-centric design personalization.     

Rule-based query personalization in digital libraries

Searching a digital library is typically a tedious task. A system can improve information access by building on knowledge about a user acquired in a user profile in order to customize information access both in terms of the information returned in response to a query (query personalization) as well as in terms of the presentation of the results (presentation personalization). In this paper, we focus on query personalization in digital libraries; in particular, we address structured queries involving metadata stored in relational databases. We describe the specification of user preferences at the level of a user profile and the process of query personalization with the use of query-rewriting rules.     

Preference-driven personalization for flexible digital item adaptation

The delivery of multimedia content often needs the adaptation of the content in order to satisfy user constraints. With the Digital Item Adaptation part, the MPEG-21 standard already defines a useful frame-work to handle this task. However, in modern service-oriented architectures the functionality of adaptation is split over several services. Hence, the central instantiation of a suitable service chain needs to tackle a complex multi-objective optimization problem. In this problem between content choice and possible adaptations the current preference model in the MPEG-7/21 standard still lacks expressiveness. In the course of this paper we demonstrate this shortcoming and how the integration of more powerful models can ease the instantiation problem. Furthermore we explain how to efficiently evaluate preference trade-offs by evaluating skyline queries as currently investigated in the field of information systems. As a running example we use preference-based content adaptation in a typical media streaming application with Web services as basic modules. The contribution of our framework is to enable a central coordinator to instantiate an executable service composition chain by integrating all needed Web services to adapt the multimedia content in the best possible fashion in the sense of Pareto optimality. This work was supported in part by the German Research Foundation (DFG) within the Emmy-Noether Program of Exellence.     

一种实现PDM产品结构管理的扩展产品结构树

对设计过程进行分析，针对设计活动，产品信息和设计人员３个要素，提出一种扩展的产品结构树，能反映产品数据的过程相关性，以此为基础，建立ＰＤＭ中产品结构管理的功能结构，并讨论了产品结构管理与ＰＤＭ的集成关系。     

基于产品符号传递模型的设计定制系统设计与实现

从符号学的角度分析了产品设计过程,建立了产品符号传递模型。基于这个模型架构设计并实现了一个设计定制系统。该系统从多视图、多层次对产品设计和产品定制进行辅助,能提高信息传递的效率,并为企业快速响应客户需求提供了有效的解决方案,     

Receiver-side semantic reasoning for digital TV personalization in the absence of return channels

Experience has proved that interactive applications delivered through Digital TV must provide personalized information to the viewers in order to be perceived as a valuable service. Due to the limited computational power of DTV receivers (either domestic set-top boxes or mobile devices), most of the existing systems have opted to place the personalization engines in dedicated servers, assuming that a return channel is always available for bidirectional communication. However, in a domain where most of the information is transmitted through broadcast, there are still many cases of intermittent, sporadic or null access to a return channel. In such situations, it is impossible for the servers to learn who is watching TV at the moment, and so the personalization features become unavailable. To solve this problem without sacrificing much personalization quality, this paper introduces solutions to run a downsized semantic reasoning process in the DTV receivers, supported by a pre-selection of material driven by audience stereotypes in the head-end. Evaluation results are presented to prove the feasibility of this approach, and also to assess the quality it achieves in comparison with previous ones.

基于商空间的产品设计问题求解模型研究

针对产品设计约束网络模型的求解难问题,提出了基于商空间的产品设计问题求解模型。将产品设计问题的约束网络转换为拓扑空间,使用等价关系对约束满足问题中的变量进行划分,建立了基于商空间的产品设计问题分层求解模型。通过商映射实现不同层次之间的映射和回溯。这种采用分层次、逐步细化的问题求解方法,降低了问题求解的计算复杂性。     

A fully personalization strategy of E-learning scenarios

The personalization in E-learning systems has been the subject of many recent research efforts. While a large number of systems have been implemented, many of these systems allow the application of very few if not just one predefined personalization strategy. This is a constraint for providing effective E-learning experience and for rationalizing the personalization needs of the pedagogues, the professors and the learners. In this paper, we propose a new approach for personalization of learning scenarios based on two levels: The first level allows the personalization of learning scenarios according to a predefined personalization strategy. The second level allows teachers to select personalization parameters and combine them flexibly to define different personalization strategies according to the specifics of courses. The proposed solution is a step to federate the research efforts on the E-learning personalization by integrating and combining the personalization parameters. Concerning the technological aspect, Web service technology constitutes an operational solution for implementing our approach and for the interoperability with other E-learning personalization systems. Beside the implementation of an interoperable solution, we also aim to enable teachers to provide proper personalized learning scenarios.     

Product relationships management enabler for concurrent engineering and product lifecycle management

The current competitive industrial context requires more flexible, intelligent and compact product lifecycles, especially in the product development process where several lifecycle issues have to be considered, so as to deliver lifecycle oriented products. This paper describes the application of a novel product relationships management approach, in the context of product lifecycle management (PLM), enabling concurrent product design and assembly sequence planning. Previous work has provided a foundation through a theoretical framework, enhanced by the paradigm of product relational design and management. This statement therefore highlights the concurrent and proactive aspect of assembly oriented design vision. Central to this approach is the establishment and implementation of a complex and multiple viewpoints of product development addressing various stakeholders design and assembly planning points of view. By establishing such comprehensive relationships and identifying related relationships among several lifecycle phases, it is then possible to undertake the product design and assembly phases concurrently. Specifically, the proposed work and its application enable the management of product relationship information at the interface of product-process data management techniques. Based on the theory, models and techniques such as described in previous work, the implementation of a new hub application called PEGASUS is then described. Also based on web service technology, PEGASUS can be considered as a mediator application and/or an enabler for PLM that externalises product relationships and enables the control of information flow with internal regulation procedures. The feasibility of the approach is justified and the associated benefits are reported with a mechanical assembly as a case study.     

对产品设计教学的思考

产品设计是工业设计最重要的专业课之一。本文通过对产品设计系列课程的分析,探究产品设计的课程内容、教学方法和手段,并阐述了每个课程的实践过程和环节。     

基于模板技术的产品大规模定制信息发布模型*

提出了基于模板技术的产品定制信息发布模型,该模型根据产品定制系统页面输出样式,通过模板定义层定义页面输出模板,并由模板生成层生成并保存页面输出模板;系统输出数据通过页面输出发布程序,结合相应的页面输出模板生成Web发布页面。该模型实现了系统信息发布页面的灵活定制和信息输出发布软件的复用。     

Development of an adaptive learning system with two sources of personalization information

Previous research of adaptive learning mainly focused on improving student learning achievements based only on single-source of personalization information, such as learning style, cognitive style or learning achievement. In this paper, an innovative adaptive learning approach is proposed by basing upon two main sources of personalization information, that is, learning behavior and personal learning style. To determine the initial learning styles of the students, the [Keefe, J. W. (1987). Learning Styles: Theory and Practice. Reston, VA: National Association of Secondary School Principals.] questionnaire is employed in our approach. To more precisely reflect the learning behaviors of each student, the interactions and learning results of each student are analyzed when adjusting the subject materials. Based on the innovative approach, an adaptive learning system has been developed; moreover, an experiment was conducted to evaluate the performance of our approach. By analyzing the results from three groups of students using different adaptive learning approaches, it can be found that the innovative approach is helpful in improving both the learning achievement and learning efficiency of individual students.     

灯具的造型设计与创新

随着现代工业的不断发展和人类物质文明的进步,人们对产品的需求越来越高了,不但要求产品具有完善的、科学的使用功能,同时还要求产品的造型设计形态应具有一定的审美性和宜人性。设计的精髓是以人为本,在灯具的造型设计当中,应具有造型设计的特征和要素,遵循造型设计的原理,这样才能使灯具在外观上更符合社会的需求和满足人们的心理需要。创新是设计的灵魂,它将为灯具带来新的生命力,本文紧密结合灯具阐述了工业设计的一些原理、观念和创造与革新的重要性,使之在激烈的市场竞争中取得优势。     

产品配置器的工作机理研究*

随着大批量定制生产方式的发展,产品配置器在现代生产中扮演着越来越重要的角色。描述了产品配置器的功能、工作机理,以及影响配置器质量与应用的种种因素。     

Mapping Product Design Specification for Mass Customization

Mass customization is an emerging field in manufacturing research community where customer satisfaction is achieved by complying with exact customer requirements at mass production efficiencies. Product varieties have mostly failed in the aspect of satisfying customer requirements, since knowing beforehand exactly what customer needs is beyond the scope of any manufacturing or marketing paradigm. So design to order and build to order is widely talked in the industry to capture heterogeneous market segments. In order to achieve the challenging task of customization at mass production efficiencies, a tight integration of the various entities involved is necessary. Gathering customer requirements, finalizing product design and eventual manufacturing need to be seamlessly integrated to achieve mass production efficiencies. Product designs are classified into customizable product platform families, and then searched based on customer requirements to identify the most conformal design family. Finally the design parameter transport is carried out from customer domain to product domain. Eventually a valid and realizable product specification is generated. The paper will address these issues of classification, selection and ultimately the mapping of parameters. A methodology to classify the product design information, which can easily accommodate design variations based on product platform architecture is proposed. Further, adaptive design customization, which relates most design parameters with the scalable platform design parameters using matrix formulation, is discussed. The proposed design parameter classification and adaptive synthesis of design parameters is applied to a spring design example.     

The personalization effect in multimedia learning: The influence of dialect

The personalization effect states that through addressing a learner personally or formulating multimedia instruction in a personal way the learning outcome is improved. This effect can be explained either with higher social presence, with stronger self-reference or with more familiarity of personal messages. Based on these explanations, using a regional dialect instead of standard language should also improve the learning outcome. Two hundred and ten Austrian pupils at a lower secondary school viewed a narrated animation concerning computer networks. The students were randomly assigned to one cell of a 2 (formal or personalized) × 2 (standard German or Austrian dialect) between-subjects factorial design. Results confirmed the personalization effect for retention and transfer performance, showing a stronger effect for transfer. This result is discussed as well as the partly significant findings for the factor speech and the significant interaction effect between personalization and speech on learners’ interest.     

Modeling design objects in CAD system for Service/Product Engineering

This paper proposes a new type of service CAD system utilized in Service/Product Engineering (SPE), a much-needed and novel engineering discipline within the background of servicification. In this research a design-object model was defined, and a prototype named Service Explorer was implemented. The model represents critical concepts such as value, costs, functions either of products or of service activities, and entities. Through its application to business cases such as selling washing machines, providing pay-per-wash service, and cleaning washing machines, the Service Explorer was proven to support designers as they describe and operate design objects. In the future we expect that the Service Explorer can help designers with generating new ideas.