用多Agent系统实现分布的制造资源集成(续完)

可以将Ａｇｅｎｔ组成联邦系统 ,每组Ａｇｅｎｔ有一个Ｆａｃｉｌｉｔａｔｏｒ/Ｍｅｄｉａｔｏｒ作为本组Ａ ｇｅｎｔ与其他组Ａｇｅｎｔ通讯的代表 ,联邦机制适合复杂、动态、包含大量资源Ａｇｅｎｔ的分布式制造系统。图 3采取混合Ａｇｅｎｔ模型[14 ] ,将资源按照应用领域分组 ,Ｍｅｄｉａｔｏｒ是组内所有Ａｇｅｎｔ的命名服务器 ,代表本组同其他组Ａｇｅｎｔ通讯 ,类似于图 2中ＡＮＳ/Ｒｏｕｔｅｒ功能。Ａｇｅｎｔ可以通过ｍｅｄｉａｔｏｒ同其他组中Ａｇｅｎｔ初始化通讯通道 ,然后Ａｇｅｎｔ之间可以直接通讯 ,这样既保持了Ａｇｅｎ…     

基于特征的产品模型及产品建模系统

基于特征的产品模型是ＣＡＤ／ＣＡＰＰ／ＣＡＭ集成以至ＣＩＭＳ实现的关键技术。文中提出了基于特征的产品模型结构，讨论了集成化的ＣＡＤ／ＣＡＭ系统对特征造型系统的要求，提出了基于特征的产品建模系统的结构。     

微机注塑模CAD三维系统IPMCAD3.0

本文在介绍ＩＰＭＣＡＤ３．０系统基本功能的基础上，着重对三维ＣＡＤ系统的特点和高性能实用ＣＡＤ系统的开发原则进行了讨论并对ＩＰＭＣＡＤ３．０系统作出客观评价。     

并行工程中基于多Agent的IPT组织与管理系统研究

在分析传统的ＩＰＴ（多功能小组）组织结构模型和并行工程中ＩＰＴ对人力资源要求的基础上,并结合作者与上海彭风机厂“并行工程”成果应用工程,提出了一种基于智能Ａｇｅｎｔ和ＩＰＴ组织与管理系统工件并给出了它的具体实现方法。该系统具有结构灵活、适应性强等特点,为ＩＰＴ的组织与管理提供力的支持。     

离散型车间检测过程实时监控系统研究

针对离散型车间在检测过程中信息不透明、数据传输不及时的问题,设计一个面向检测过程的实时监控系统。通过对零部件检测车间实时监控系统的检测过程模型、系统体系架构、数据采集方法、系统功能模块及软件系统5个方面进行设计,完成了对车间人员、物料、设备、质量和环境的实时监控,提升了离散型车间检测过程的监控水平,实现了车间信息的实时传递,有利于决策人员对检测全局的把控以及减少设备的非增值时间。通过某航空企业项目实践,验证了设计的合理性与实用性。     

汽车制动力检测系统中数据采集处理及数据库管理系统的实现

讨论了汽车制动力检测中传感器信号数据采集与处理及数据库管理系统的组成。采用系统标定方式和数据滤波技术,并引入以微处理器为核心的现场智能控制设备和以RS-485网络为基础的远程监控软件。该系统能大大提高信号测量的精度和稳定性;实时、准确地处理车辆制动力信号,采用数据库对实时及历史数据进行管理,提高了数据处理的智能化水平。此外,系统具有较好的通用性,可扩展应用于其它工业测控现场。     

箱体类零件CAD与CAPP系统的集成

在ＡｕｔｏＣＡＤ１１．０实体造型模块的基础上，开发了一个用于箱体类零件的特征建模系统。通过该系统生成的特征数据文件进行交换，实现了零件ＣＡＤ与ＣＡＰＰ的集成。本文对特征概念，基于特征的零件定义模型及系统的开发进行了介绍。     

DSH仿真模型的计算机生成

研究服液压系统动态特性仿真软件（ＤＳＨ）仿真模型的计算机生成问题。利用ＡｕｔｏＣＡＤ图形功能建立ＤＳＨ构件图形库,以图形库为基础,在ＡｕｔｏＣＡＤ下实现待仿真液压系统原理图的生成;利用ＡｕｔｏＬＩＳＰ语言编程对存储于原理图中的构件信息和系统结构信息进行析取,进而实现由原理图到ＤＳＨ仿真模型的自动生成。     

飞机地面压力加油系统油箱液面测控技术研究

针对飞机地面压力加油系统管路模型，提出利用激光检测装置对油箱液面实施动态监控，根据不同的加油方案，由单片机对加油活门进行调节，使得各油箱尽可能同时满油，从而达到提高工作效率之目的。地面模拟加油试验验证了该方案的有效性。     

腐蚀监测技术在锦西石化南蒸馏塔顶系统的应用

采用化学分析法、超声波定点测厚和在线腐蚀监测三种方法对南蒸馏塔顶系统的腐蚀进行了监、检测,并对结果进行了分析和讨论,总结了南蒸馏塔顶系统的腐蚀情况,讨论了不同监检测方法的作用,并对今后的腐蚀监检测工作提出了建议.     

The Korea Advanced Manufacturing System (KAMS) Project

The Korea Advanced Manufacturing System (KAMS) is one of the Highly Advanced National (HAN) Projects planned to achieve significant technological advances in Korea. The aim of this project is to create new processes and technologies for managing and integrating manufacturing systems. The key to sustaining economic growth and surviving global competition is to develop advanced manufacturing systems technology. The Korea Institute of Industrial Technology (KITECH) began this project in 1992 with support from the Ministry of Trade, Industry and Energy and the Ministry of Science and Technology. The project is divided into three phases, each phase consisting of project groups which include several research projects. The main project groups are ‘next-generation machining system' and ‘assembly and inspection system for electronic products'. The names of research projects are listed, and brief explanations are also introduced in this paper. The KAMS Project is expected to result in many benefits for manufacturing industry. The increase in productivity and system accuracy, and reduction in lead-time, will give renewed vitality to Korean manufacturing industry.     

射线数字成像检测技术

介绍多种射线数字成像(DR)系统的组成及成像机理，分析其性能指标、优缺点及应用领域。光子放大的DR系统(如图像增强器DR系统)实时性好，但适应的射线能量低，检测灵敏度相对较低；其它系统的检测灵敏度较高但成像时间较长。DR系统成像方式的主要区别在于射线探测器，除射线转换方式外，影响系统检测灵敏度的主要因素是散射噪声和量子噪声；可采用加准直器和光量子积分降噪的方法提高检测灵敏度。     

基于偏振视觉的环形构件表面形貌重构

为了增强对环形构件表面的质量检测能力,提出一种基于单目DoFP偏振相机的FSV偏振检测方法。根据偏振反射分离出的漫反射信息,对基于FSV的偏振三维重建模型进行校正。利用偏振数据得到增强的二维表面图像,并进行相应的偏振三维建模。实验结果表明,与传统成像系统和非FSV偏振成像系统相比,所提出的检测方法测得的DoP图像在图像评价指标上提升3%以上,重建的三维模型和真实检测表面的均方根误差为0.35,大大提高了对环形构件表面的质量检测能力。     

Functional model for the development of an inspection integration framework

Product dimensional inspection is set as one of the essential parts of the production process, where not only product quality test is checked but also its interaction with other development stages in a minimal time. This enables a feedback to make quicker production and design decisions, provides updated information about the inspection processes to be shared and used in the new development processes, and permits the simultaneous work in the preparation of the inspection processes themselves. For this aim, it is necessary, as it occurs in the STEP framework, to develop an application context that includes all dimensional inspection aspects, from the geometrical and measurement aspects to those related to administration and configuration product data. This paper proposes a solution to integrate the dimensional inspection process with coordinate measuring machines with the design and manufacturing processes. Integration is achieved through a common product information model. A functional information model, a reference information model and an interpreted information model have been defined. The interaction with other information models associated to other activities of the production cycle is possible. Tests have been made of the possibility of making the inspection information interchange at the operation level instead of making it at the CMM trajectory level, as it is the case of the current DMIS format. This level of information definition is easier to put into effect, easier to interpret, and it is more productive.

In order to test the validity of the information model, a real work environment which has been called IFCIA (Inspection Framework for Concurrent Information Access) has been developed. The IFCIA architecture is composed of a product modelling system, an object-oriented central database and a tri-dimensional coordinate measuring machine. The model has been implemented on an object-oriented product central database which is accessible by all the applications, so that the access to data is achieved in a concurrent way and in real time for the different agents involved in the development cycle, in a heterogeneous framework of platforms and applications. The generation and transference of the information among these systems are carried out exclusively according to data structures defined in the information model.     

Application of homogenous transformation matrix to measurement of cam profiles on coordinate measuring machines

A kinematic model is presented to aid the cam profile design task and to determine the NC data required to move an inspection probe to the necessary locations to inspect the surface profile of a spatial cam on a coordinate measuring machine (CMM). The cam profile is designed in accordance with the principles of conjugate surface theory. Homogenous transformation matrices are then employed to derive the CMM ability function matrix and the measuring probe location matrix. The required NC data are obtained by equating the elements in the ability function matrix with the corresponding elements in the probe location matrix in order to solve the CMM link variables. The validity of the proposed approach is verified by carrying out the automatic inspection of a machined cam on a CMM using the NC data computed by the developed algorithm. The methodology presented in this study combines the cam design, machining and inspection activities, and makes possible a flexible and automatic spatial cam design and manufacturing process.     

激光熔丝增材制造监测与控制系统研究现状

激光熔丝增材制造作为一种定向能量沉积技术,具有很好的发展前景。文中对国内外激光熔丝增材制造监测与控制系统进行归纳概述。现阶段,国内外激光熔丝增材制造常见的监测系统包括结构光扫描系统、红外测温成像系统等,实时监测沉积层高度、熔池状态;常见的控制系统为以闭环控制策略为主的在线反馈送丝速率控制系统、在线反馈激光功率控制系统等,在线监测系统与控制系统协同作用,能够显著优化增材制造工艺、提高成形质量。介绍了包括三维超声波扫描技术、电磁振动监测技术在内的新兴激光熔丝增材制造监测技术。结合激光熔丝增材制造技术的工艺难题对下一代监测与控制系统进行展望。国内外对沉积层高度和宽度、熔池尺寸和温度等监测对象已有较为充分的研究和试验验证,但在沉积过程中,由于激光的高能量密度会造成高温度梯度,因此对沉积过程在线高精度、高质量监测与控制技术的研究变得至关重要。 创新点： 激光熔丝增材制造成形精度要求高,同时国内外对该技术的相关工艺、成形原位控制的研究处于起步阶段,对沉积层、熔池偏差的实时监测与控制进行深入研究具有重要意义。     

基于NX MCD的工业机器人视觉分拣数字孪生系统设计

针对制造业中多类型、多颜色工件人工重复分拣出错率高的问题，设计一个基于工业视觉的工业机器人自动分拣物理控制系统和数字孪生系统。提出融合工业视觉、工业机器人、PLC等设备的以太网通信控制方案；基于视觉检测原理，应用视觉检测工具，结合PLC程序能够正确识别工件信息；基于NX MCD软件构建了工业机器人、输送带、工件等数字孪生系统；最后，对工业机器人和PLC进行联合编程，实现视觉分拣虚实系统同步作业。实验结果证明：该系统工件识别正确率高，工件分拣效率高，数字孪生系统能够实现虚实同步，为系统的动态监控、维护管理与虚拟调试提供了便利。     

热网污垢在线监测专家系统的研究

以压力、流量、温度为基础诊断变量,以流动阻力系数、热网效率和运行费用为基本评价指标.对供热网络的污垢问题进行了研究,并提出了一种基于专家系统结构的在线监测方法.此系统可以在线监测供热管路的结垢程度、估计结垢的部位,结垢造成的热经济损失.利用Delphi编程技术,实现了全部的功能.      

阴极保护计算机管理系统

采用IBMPC486微机和CPM-1型阴极保护多路参数遥测系统构成阴极保护计算机管理系统,对现场8套阴极保护系统进行自动化监测和管理.