城市污水处理过程综合自动化系统及其应用

针对具有综合复杂性的城市污水处理过程自动化程度低、运行成本高的问题,提出了实现污水处理达标率、污水处理量和污水处理成本等综合生产指标优化的综合自动化系统,讨论了由污水处理过程制造执行系统和过程控制系统两层结构组成的污水处理过程综合自动化系统的体系结构、功能和以污水处理达标率为目标的优化控制策略。该系统已成功应用于沈阳某污水处理厂,实现了污水处理过程的优化控制、优化运行和优化管理,取得了显著的应用成效。     

面向大批量定制的计算机辅助制造系统研究

为了满足大批量定制企业快速响应客户个性化的需求,将大批量定制相似性原理、重用性原理和整体性用于计算机辅助制造系统中,提出了面向大批量定制企业计算机辅助制造的基本特征和体系架构.在该体系架构中,利用基于相似性原理的主模型和事物特性表技术来实现数控程序快速成型;用产品数据管理实现加工信息的统一管理和高度重用;利用产品数据管理和分布式数控的集成来实现对车间加工的任务分配、管理和快速加工;对其中的关键技术进行了研究,提出了相应的解决方案,并成功地运用于企业生产.     

基于多智能体的制造系统生产控制建模研究

为提高制造系统生产控制的性能,建立了基于多智能体系统的混合控制模型.该模型把生产控制系统分为管理智能体层、单元智能体层和执行智能体层.管理智能体层负责调度和协调各单元智能体,并对所有智能体进行管理;单元智能体层中的各单元智能体间通过公用数据库相互协作;执行智能体对制造系统内的硬件负责,它们根据局部的本地资源信息及当前状态,接收发布的任务,并对其求解.同一层次的智能体之间是分布式结构.采用基于多智能体的混合控制模式,提高了制造系统生产控制的实时性和灵活性.通过激光拼焊生产系统中的试验,验证了该模型的有效性.     

An adaptive agile manufacturing control infrastructure based on TOPNs-CS modelling

In this paper, an infrastructure for adaptive production control in an agile manufacturing environment is proposed. With this infrastructure, Virtual Production Systems (VPSs), each of which takes care of the production of a specific customer ordered product, can be dynamically and flexibly constructed. This can be achieved logically by product workflow and physically by the resources in one or more manufacturing systems, e.g. job shops. To respond to changes and disturbances to a VPS, architecture for the adaptive controller of a VPS is designed based on adaptive control principles and Temporised Object-Oriented Petri Nets with Changeable Structure (OPNs-CS) modelling. A case study is used in this paper to illustrate how adaptive production control of VPS functions can be conducted to cope with changes and disturbances to the production system.     

A production order-driven AGV control model with object-oriented implementation

To effectively manage the material handling in Flexible Manufacturing Systems (FMS), where a large amount of data is required in the dynamic decision-making, integrated control is needed to consider the overall production schedule. The focus of this research is on the development of an integrated Automated Guided Vehicle System (AGVS) control model that includes essential features like dynamic vehicle path determination and conflict-free routing. An object-oriented implementation of the AGVS model is proposed that forms the basis of systems integration with a production planning module such as MRP. Static and dynamic informational and functional models of the AGVS are developed. The system incorporates: (i) conflict-free shortest path routing procedures, and (ii) vehicle assignment rules or scheduling strategies. A prototype version of each of these has been developed for demonstrative purposes. This object-oriented modelling methodology provides the capability of rapid development and change. The approach has been demonstrated for a real manufactured product through simulation studies which confirm the superior performance of anticipatory AGVS control rules, even in a production orderdriven environment.     

机械设备状态监测系统

介绍了机械设备状态监测系统的设计思想及软、硬件设计技术。该系统将数据采集分析系统分成了在线的数据采集机、离线的分析处理机和传递数据的中继机三部分。采集机直接安装在各种工程机械上,实时记录工程机械的各种工况参数,在机械出现故障或参数越限时进行报警。采集机采集和存贮的信息由中继机传送到分析处理机中进行离线分析和处理     

CIMS环境下炼油企业面向对象质量信息系统的集成研究

介绍了ＣＩＭＳ环境下炼油企业质量体系运行管理,以及ＣＩＭＳ环境下ＭＩＳ系统常用开发方法,并比较了它们之间的优缺点,论 应用面向对象方法在ＣＩＭＳ环境下炼油企业质量信息系统中的应用,提出了ＣＩＭＳ环境下炼油企业质量系统的结构模型,同时提出了管理单元的概念 系统的可扩充和重用。     

基于PHM的企业联盟加工过程质量控制技术研究

在网络化制造环境下,由于企业联盟具有信息化、集成化、全球化和动态化的特点,对传统的质量控制技术提出了新的要求.基于预测与健康管理( PHM)技术对网络化制造环境下的机械加工过程质量控制进行探索,提出一种由设备层、分布式信息处理层、网络构架层,以及管理与决策层构成的系统体系结构与实施方案,并给出了基于模糊专家系统和模糊神经网络的故障诊断方法.     

A Multi-Agent-Based Agile Shop Floor Control System

The ability of an enterprise to deliver new products quickly and efficiently to market is often the chief determinant of competitive success. The shop floor control system must be an open dynamic system with the capability of adapting and accepting radical unpredictable changes in its structures and industrial practices. This paper presents a new architecture for an agile shop floor control system. The architecture is based on the methodology of multi-agent systems in distributed artificial intelligence (DAI). The multi-agent system has some common characteristics such as: distribution, autonomy, interaction, and openness, which are helpful for transferring traditional architecture to a distributed, cooperative architecture for a shop floor control system. A bidding method based on the required production cost and processing time is also proposed. Using a distributed object-oriented technique, a CORBA-based multi-agent framework for an agile shop floor control system is constructed to integrate all the activity of the shop floor into a distributed intelligent open environment. To implement the framework, a coordination model between agents and behavioural models of some representative agents are established.     

适应性的递阶式车间层控制系统ALSYS

适应性的递阶式车间控制系统ALSYS具有相对控制层次的独立性、相对应用过程的独立性和相对于计算机的独立性,基本上能满足适应性的要求。本文论述了该系统新颖的体系结构和功能模型,并介绍了以上海交通大学生产系统与控制技术研究所的CIM示范系统实例所进行的系统开发和实现。     

SIMULTANEOUS QUANTIFICATION OF THREE MAJOR ACTIVE COMPONENTS IN GRANULES OF THE TRADITIONAL CHINESE MEDICINE “SHU-JIN-TONG-LUO” BY HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY

A simple, sensitive, and reliable high-performance liquid chromatography (HPLC) method has been developed for the simultaneous quantification of three major bioactive components (hydroxysafflor yellow A, geniposide, and paeoniflorin) in “Shu-Jin-Tong-Luo” granules (SJTLG), for quality control of this commonly prescribed traditional Chinese medicine. Chromatographic separation was carried out on a Hypersil-ODS column (250 mm × 4.6 mm ID, 5.0 μm) and isocratic elution was employed using acetonitrile and 50 mM potassium dihydrogen phosphate buffer as the mobile phase. The method was fully validated with respect to linearity, precision, accuracy, specificity, and robustness. The validated method was applied successfully to the quantification of the investigated components in samples of SJTLG from different production batches for quality evaluation and control. The results indicate that the HPLC method described is a simple and accurate quality control method for analysis of SJTLG.     

基于客户／服务器结构的CIMS协同控制结构研究

对ＣＩＭＳ的基于客户／服务器的协同控制结构进行研究分析，特别是对制造系统部分各设备的分布式自组织协同控制及其实现进行深入的探讨。各设备在协同控制器的作用下，通过在线实时竞争协商，灵活机动地完成整个生产任务。     

虚拟制造体系结构研究

作为一种新的制造模式,虚拟制造是多学科先进知识形成的综合技术,其框架和体系结构在其各单元技术的研究与应用中起着提纲挈领的作用,因而引起了越来越多的重视。本文结合当前虚拟制造研究和应用情况,给出了虚拟制造的内涵,探讨了其关键技术和主要研究内容,研究了与实际制造过程的映射关系,提出了支持企业生产全过程的虚拟制造平台的框架及体系结构     

车辆纵向运动跟车间距控制的研究

采用一种可以实施混合学习算法的自适应神经一模糊推理系统(ANFIS)结构，对车辆纵向运动跟车间距控制问题进行了研究，设计了基于ANFIS结构的跟车间距控制器，通过仿真对ANFIS结构控制器中的各参数进行了优化，结果表明，运用ANFIS结构进行跟车间距控制是可行的，控制器可取得较为满意的控制效果。     

水厂自动化工程ControlLogix控制系统设计

针对某些自来水厂整个工艺流程自动化程度低,导致生产效率低、居民饮用水质量不高的缺点,基于水厂自动化工程改造进行了一种ControlLogix控制系统设计。在简要描述水厂生产工艺流程和ControlLogix控制系统的基础上,着重阐述ControlLogix控制系统的设计过程,包括系统总体构架、PLC控制系统和计算机监控及信息处理等部分,并给出较为详细的设计架构和技术环节描述。经所设计控制系统在某自来水厂一年运行情况表明,系统各环节运转状况正常,各项运行参数和指标表现良好,验证文章所设计控制系统的可行性和有效性。     

基于两化融合的产品生产过程控制及质量追溯

针对中小型制造企业产品生产过程中普遍存在的生产过程难控制、质量问题难追溯等问题,提出了基于两化融合的产品生产过程控制及质量追溯系统,该系统的主要功能包括字符识别及条码生成、生产过程记录控制和产品质量追溯3个部分。首先,通过字符识别及条码生成规则,生成产品唯一条码;其次,以条码数据为依据对产品制造生命周期的生产过程进行实时记录和可视化控制;最后,对出现质量缺陷的产品进行生产过程追溯和质量问题分析统计,以便及时地对存在质量隐患的生产工序进行优化改进,达到提升产品总体质量的目的。目前该系统在某称重传感器生产企业得到验证,借助该系统,企业实现了各生产工序的质量统计与分析,以及薪资计算、预防性的质量管理,改善了产品质量,实现了企业信息化与工业化的融合。     

An Architecture for Active Product Configuration Management in Industrial Virtual Enterprises

The importance of configuration management (CM) is increasingly recognised as customers demand safer, higher-quality, and lower-priced products. Although various standards for configuration management exist, there are no internationally agreed standards. Further, existing CM standards do not address the issue of integrating heterogeneous, autonomous, and distributed information, especially for virtual enterprises. This paper proposes an architecture for product configuration management in industrial virtual enterprises. The architecture includes the common objects and functions extracted from various CM standards. Based on the World Wide Web (WWW) and common object request broker architecture (CORBA), it will enable the integration of heterogeneous, autonomous, and distributed information. Further, the architecture adopts a rule concept that will provide an active mechanism for configuration management. A prototype system has been implemented to demonstrate the feasibility of the proposed architecture. The proposed architecture and the prototype will provide a generalised framework and implementation guidelines for CM systems that can shorten the product life cycle, minimise production cost, and guarantee the quality of products in industrial virtual enterprises.     

APPLICATION OF IMPROVED PRODUCTION ACTIVITY CONTROL ARCHITECTURE FOR SHOP FLOOR INFORMATION SYSTEM IN DIGITAL MANUFACTURING

Shop floor control (SFC) is responsible for the coordination and control of the manufacturing physical and information flow within the shop floor in the manufacturing system. Weaknesses of the production activity control (PAC) architecture of the shop floor are addressed by the Maglica's new system architecture. This architecture gives rise to unlimited number of movers and producers thus evolving more complex but decentralized architecture. Beijing Institute of Technology - production activity control (BIT-PAC) architecture introduces an idea of sub-producers and sub-movers thus reducing the complexity of the architecture. All the equipments including sub-producers and sub-movers are considered to be passive in the proposed shop floor information system. The dissemination of information from sub-producers and sub-movers is done manually through a PC. Proposed BIT-PAC SFC architecture facilitates the information flow from shop floor to the other area of the organization. Effective use of internet information services (IIS) and SQL2000 is done along with the ASP.NET technology to implement the application logic. Applicability of the software based on BIT-PAC architecture is checked by running application software on a network PC that supports the dynamic flow of information from sub-producers and sub-movers to the other parts of the organization. Use of software is also shown at the end for BIT training workshop thus supporting the use of SFC architecture for similar kind of environments.     

基金会现场总线在离散控制中的应用

基金会现场总线（FF）在OSI参数模型基础上增加了用户层，定义了很多用于离散控制的功能块这使得FF不仅适用于连续控制，也同样适用于离散控制，在介绍FF功能块应用的基础上，以实例说明了FF在离散控制中的应用。     

Self-improving process control for molecular beam epitaxy

This paper addresses manufacturing research involving advances in material process control. The research objective has been to develop intelligent, self-directed and self-improving control systems which enablein situ (real-time) control path generation based on both product (material behaviour) and processing (control agent) feedback. A product-process control philosophy which emphasises product quality is described together with a generic architecture for representing product and process knowledge.Specific details are presented involving the development and application of a self-directed and self-improving material processing system for molecular beam epitaxy of gallium arsenide wafers. Special emphasis is given to the development of a neural model for self-improving control as well as future research directions.