Wise-ShopFloor: An Integrated Approach for Web-Based Collaborative Manufacturing

This paper presents an integrated approach for Web-based collaborative manufacturing, including distributed process planning, dynamic scheduling, real-time monitoring, and remote control. It is enabled by a Web-based integrated sensor-driven e-ShopFloor (Wise-ShopFloor) framework targeting distributed yet collaborative manufacturing environments. Utilizing the latest Java technologies (Java 3D and Java Servlet) for system implementation, this approach allows users to plan and control distant shop floor operations based on runtime information from the shop floor. The objective of this research is to develop methodology and algorithms for Web-based collaborative planning and control, supported by real-time monitoring for dynamic scheduling. Details on the principle of the Wise-ShopFloor framework, system architecture, and a proof-of-concept prototype are reported in this paper. An example of distributed process planning for remote machining is chosen as a case study to demonstrate the effectiveness of this approach toward Web-based collaborative manufacturing.     

面向协同制造的分布式对象与虚拟设计环境研究

针对分布式在协同设计与制造环境中的需求,提出了实体对象与分布式对象的映射模型和平台匹配方案。分析了协同虚拟制造(CVM,collaborative virtual manufacturing)的技术体系,给出了实体对象的分析方法,提出了分布式环境下的分布式对象映射模型,并设计了CVM分布式支撑环境架构；引入单元匹配和平台匹配量化分析,改进了信息平台效率测度的评价方法。通过实例分析,得到了CVM系统结构拓展模型,对分布式虚拟设计与测试环节进行讨论,表明了应用协同与虚拟现实技术的改进效率。     

基于5G边云协同的柔性智能制造技术方案

柔性智能制造作为工业智能的代表,已成为精密电子制造业向智能化演进的趋势,同时5G、F5G(Fixed-5G)、边缘计算以及人工智能等ICT技术与OT技术的不断融合,为柔性智能制造提供了良好的使能环境.基于5G+F5G工业PON固移融合网络,构建工业端边云协同架构;面向SMT产线柔性智能生产需求,开展基于端边云协同的柔性...     

A mechatronics educational laboratory – Programmable logic controllers and material handling experiments

The integration of robotics, conveyors, sensors, and programmable logic controllers into manufacturing and material handling processes requires engineers with technical skills and expertise in these systems. The coordination of assembly operations and supervisory control demands familiarity with mechanical and electrical design, instrumentation, actuators, and computer programming for successful system development. This paper presents an educational mechatronics laboratory that encourages multi-disciplinary hands-on engineering discovery within team settings. Three focused progressive experiments are reviewed that allow students to program and operate a programmable logic controller, a traditional conveyor system, and a distributed servo-motor based conveyor. The students also program and implement two robotic arms for material handling applications. The equipment, learning objectives, and experimental methodology for each laboratory are discussed to offer insight. A collaborative design project case study is presented in which student teams create a smart material handling system. Overall, engineering graduates have generally been required to learn material handling and other multi-disciplinary concepts in the field, and therefore, a well-rounded engineering curriculum should incorporate mechatronics in both the classroom and laboratory.     

分布式曲面设计和快速原型制造中的模型描述

在分析分布式曲面设计和快速原型制造特点的基础上,建立了曲面协同设计和快速原型制造的基础信息框架.针对自由曲面的设计要求和快速原型制造的特点,提出了采用三角网格模型作为曲面的描述方式.此描述方法分别采用自定义数据格式T和CMESH作为系统格式和网络传输格式,采用STL格式作为快速原型制造的数据格式.在设计了三种数据的转换方法后,通过实验验证了文中所提模型描述方法,实验表明,采用此方法可以使网络数据传输量减少为1/12,满足分布式曲面设计和快速原型制造的要求.     

Effective Technology Transfer?From Laboratory to Production Line

The Engineering Research Center, the central manufacturing research laboratory of the Western Electric Co., uses two personnel programs to enhance cooperative efforts with manufacturing locations. A rotational program brings manufacturing engineers to the Center on 2-yr assignments, and an intern program sends Center engineers and scientists on temporary assignments to manufacturing locations. To further encourage effective technology transfer, the Center pursues a strategy that includes cultivation of cooperative efforts, judicious scale-up by Center personnel, and the provision of a credible warranty.     

基于SaaS的面向高端装备制造业的科技服务研究

文中围绕哈长城市群,开展基于SaaS模式的面向高端装备制造业科技服务研究,针对企业间协同设计与流通的需求,构建高端装备制造业科技服务平台架构,实现设计数据到生产数据的可视化,使数字化技术贯穿设计制造全过程,为高端装备制造业与生产性服务业互动融合运行提供基础.     

《同一个世界，同一个天空》对儿童天文学兴趣与学习欲望影响的调查报告

这是中美合作对儿童天文节目《同一个世界,同一个天空》（在中国,这个节目的名字为《大鸟探险记》）的评估报告。评估内容涉及观看该节目的4-6岁儿童的天文学教育的效果、家长和教师的评价以及对儿童后续教育行为的影响。还涉及中美文化、家长与教师利用科学场馆的模式、中美教育的差异以及科学传播项目的影响等。该项目是中国第一次与美国共同就一个科学传播项目进行的大型合作,其经验和调查中发现的中美社会形态的差异对于国际研究合作具有一定的借鉴意义。     

面向在线制作的协同制作系统设计

根据基于广域网环境的在线节目制作系统的需求,设计了一种在线协同制作系统,提供了一个可供多个用户进行在线协同制作的平台。重点介绍了系统的总体设计方式和实现方式,包括协同制作客户端和协同管理服务器的模块实现细节。     

Network-based cooperative TV program production system

A new DTPP (Desk-Top Program Production) system has been developed that enables multiple program producers (directors) working at different locations to collaborate over a computer network and prepare a single program for broadcasting. In this system, information is shared among users by exchanging data edited on nonlinear editing terminals in program post-production work over a network in real time. In short, the new DTPP system provides a collaborative work space for producing TV programs. The system does not make use of a special server for collaborative work but rather multiple interconnected editing terminals having the same functions. In this configuration, data at a terminal which has just been edited by some operation is forwarded to all other connected terminals for updating. This form of information sharing, however, requires that some sort of data synchronizing method be established since multiple terminals are operating on the same data simultaneously. We therefore adopt a method whereby the system synchronizes the clocks on each terminal at the time of connection and sends an operation time stamp together with the edited data. This enables the most recently modified data to be identified and all information on all terminals to be updated appropriately. This paper provides an overview of this new collaborative DTPP system and describes the techniques for exchanging edited data and synchronizing data     

云制造概论

基于云计算的思想,文章提出一种面向服务、高效低耗和基于知识的网络化智能新模式——云制造。云制造融合现有信息化制造、云计算、物联网、语义Web、高性能计算等技术,能够为制造全生命周期过程提供可随时获取、按需使用、安全可靠、优质廉价的服务。基于云仿真原型平台COSIM-CSP的云仿真应用已初步用于某飞行器多学科虚拟样机的协同设计中,为云制造的进一步研究工作奠定了基础。     

Optical interconnection for advanced processor systems: a review ofthe ESPRIT II OLIVES program

OLIVES is a three-layer collaborative project under the European Community ESPRIT program in which components for and practical demonstration of optical interconnections for high-performance processors are under development. A review of the major aims of the project and the progress to date is given     

Progress in magnetic fusion energy research

The remarkable scientific progress that has been made in the Magnetic Fusion Energy Program since its inception 40 years ago is reviewed. This formalized international collaborative effort of design and development for a 1000-MW experimental reactor (ITER) has been entered into by the United States, Russia, Japan, and the European Community. In the United States, a national project to build a superconducting steady-state advanced tokamak (SSAT) to improve the reactor prospects of fusion is underway. Beginning with a quick summary of fundamentals, progress in research is traced through major steps in the program. This study concludes with a view of the future and of the problems remaining to be overcome before a demonstration (demo) power plant can be built by the 2025 date given in the US National Energy Strategy     

A Collaborative Approach to Bioengineering Education

Various philosophical approaches to bioengineering education result in the development of different pathways and programs. The basic underlying assumptions of the University of Washington program are presented along with a discussion of the operation of a nondepartmental approach. Undergraduate and graduate education are discussed in the context of preparing the engineer for participation in collaborative teams. A key element in the success of such teams is the introduction of the physician or life scientist to the principles of engineering. A program to provide such training is described along with a discussion about its impact on biomedical research particularly at this University.     

European research on Ka-band slant path propagation

Europe saw two major initiatives in the mid-1980's to verify the viability of 20-50 GHz frequency bands for high capacity radio transmission. The first was the experimental telecommunication satellite OLYMPUS commissioned by the European Space Agency; the second was the ITALSAT program planned by the Italian Space Agency. Both spacecraft were equipped with highly stable propagation beacon payloads for accurate measurement of propagation conditions. Two international groups of experimenters (OPEX for OLYMPUS and CEPIT for ITALSAT), who had agreed on a set of common procedures for the earth stations' design, experiment management, and comparison of results, carried out the propagation measurements in a collaborative manner. This paper gives a summary of these activities and their results     

Multiple Orders Per Job Compatible Batch Scheduling

This paper investigates the problem of grouping different customer orders into jobs and these formed jobs to batches and scheduling them on a single batch processing machine to minimize the total weighted tardiness of orders. A compatible batching environment is considered in which there is no restriction on the orders being from the same family to be batched together. A mixed-integer program (MIP) is developed and tested. The compatible MIP model takes 1 + h, on average, to solve an instance. A new simulated annealing-based heuristic solves compatible problems to within 4% of optimality in a few minutes. This fast, near optimal performance suggests that these heuristics may be viable for implementation in practical manufacturing settings, such as burn-in operations in the back end of the semiconductor manufacturing process     

Knowledge Community: A Knowledge-Building System for Global Collaborative Project Learning

The wave of a knowledge economy drives today's education to equip students with knowledge building abilities. While collaborative learning has been proven to be an effective constructivist pedagogy, it is difficult to elicit, coordinate, and capture the corresponding knowledge construction process. The situation becomes more challenging when learning is conducted in a distributed environment in which the participants are scattered in different geographical locations. In this paper, we depict the theories, architecture, applications, and analysis of a Web-based computer-supported collaborative learning and knowledge-building system called Knowledge Community (KC), which currently serves a series of 3I (interdisciplinary, interschool, and international) Project Learning activities with more than 10 000 students and teachers participating globally. We also describe the corresponding 3I Project Learning model, a novel technology-enabled pedagogy in which learners perform collaborative, comparative study projects with peers from other countries. Technologically, KC is the use of Web technologies to provide a collaborative learning environment. Pedagogically, KC with its embedded learning theories has created a new learning culture that meets the demands of knowledge economy.     

The QML system for monolithic microcircuits

The qualified manufacturers list (QML) for monolithic microcircuits is described. The approach is commonly known as generic qualification. The QML approach provides for an integrated manufacturing process from device design through final test. It is predicted, on the basis of this philosophy, that quality and reliability can be designed into a product. The implementation of a total-quality-management (TQM) program within the manufacturing unit is key to the success of the QML system. The generic qualification process, the requirements for QML-based products, and the status of the program are designed     

一种灵活的信道特性仿真ISA卡实现

一种灵活多样的信道特性仿真系统，在通信平台的研制与测试中，是非常必需的。本文详细地介绍了一种灵活的信道特性仿真ISA卡的原理与实现，并就误码产生系统给出了程序流图。     

Challenges for Semiconductor Test Engineering: A Review Paper

Today??s economical cycles challenge the test program generation process for semiconductors with regard to productivity, time-to-market, increasing quality requirements and manufacturing robustness, while, at the same time, the complexity of the system-on-a-chip mixed-signal integrated circuits to be tested increases significantly. Furthermore, commercial challenges in combination with competitive advantage become an important factor, not only within semiconductor manufacturing, but also within test program development. This paper provides a review of these challenges, and how they might be addressed. We first give a short introduction and background on semiconductor testing and test development with the focus on mixed-signal and systems-on-chip. This is followed by current roadmaps and considerations for test program software development. Based on the highlighted strength and weaknesses of the reviewed approaches, the authors conclude with some recommendations to address these challenges by adopting software engineering methods for the test program development process.