基于Agent的制造单元混合式控制系统研究

为了使单元控制系统具有柔性、开放性和可重配置性等特性，将Agent技术融合到单元控制系统体系结构中，提出了基于Agent的制造单元混合式控制体系结构，并对体系结构中各Agent的功能结构进行了设计。在此基础上，构建了控制系统的开放式软件结构，同时讨论了Agent之间的协商和通讯机制的实现方法。     

多Agent动态调度方法在染色车间调度中的应用

为解决复杂、繁琐的染色车间调度问题,根据印染生产过程的工艺特点和约束条件,建立了染色车间作业调度问题模型。为了提高调度系统对生产环境经常发生变化的自适应能力和全局优化能力,提出了一种基于蚂蚁智能与强化学习相结合的协商策略的多Agent动态调度方法。在该方法中,智能Agent能根据行为的历史反馈和立即反馈来选择相应的行为,也能根据算法的历史奖励来选择相应的智能调度算法,从而把一小部分工序任务的实时局部优化和大部分工序任务的全局优化结合起来。调度实例的求解结果验证了该方法的有效性。     

基于Agent的分布式协商策略在供应链动态计划中的应用

在分布式协作环境中，多个商业实体或执行单元，为达成某一共同决策而进行有效地协商，提出一种基于Agent的分布式协商机制和算法。采用智能Agent技术，使各Agent代表各自商业实体或执行单元的利益与其他商业实体Agent为达成某一共同决策进行协商。协商机制中使用了偏好模型的概念，并将Agent的偏好及约束看作私有信息。算法中采用了建议的全局偏好评估和冲突消解。通过实例对提出的分布式协商算法进行了仿真。仿真结果说明，使用全局偏好评估可使协商结果从全局来看更为理想；使用冲突消解明显提高了协商的成功率。最后，分析并扩展了该分布式协商算法的应用范围。     

可重入制造系统的协同控制机制

通过剖析可重入制造系统控制的需求,提出双反馈控制的协同控制策略。为使复杂制造系统的控制问题降阶,提出包括系统层协调机制、设备组/设备协调机制以及重调度协调机制的分层协同控制机制。基于混合控制原理,提出基于Multi-agent的中心协调与局部协调相结合的自治控制系统体系结构,以满足可重入制造系统非线性动态控制的需求,该体系结构具有分布性、智能性、健壮性、开放性和实时性等特点。为了实现所提出的可重入制造系统协同控制系统的体系结构,建立了基于HLA/CORBA的多层软件体系结构,该体系结构由基础层、分布对象层、Agent层、应用层等四层组成。试验表明,所提出的分层协同控制机制进行半导体生产系统的调度时,在晶圆日产出量和设备组利用率方面要优于设备组动态调度和企业中使用的启发式规则调度方法。     

基于多Agent的车间重构模型

指出了敏捷制造模式下 ,车间的功能除了具有常规的生产管理和控制功能外 ,还具有实现单元动态重构的功能和通过网络对外合作功能。提出了基于多 Agent的车间动态重构模型 ,分析了模型中 Agent之间的协商机制和实现车间动态重构模型的支撑技术     

车间管理控制系统分布式控制方式构造研究

根据敏捷化生产的要求,对车间管理控制系统的功能进行了分析，论述了在车间管理控制系统的研究中引入多Agent理论与方法的必要性与可行性，提出了基于多Agent理论与方法的车间管理控制系统的体系结构，并论述了相应的软件原型系统的实现方案。     

面向离散制造车间的多Agent动态调度方法研究

为了解决离散制造业生产过程中复杂动态的车间调度问题,设计了一种面向离散制造业的动态调度方法。首先建立了车间的多Agent动态调度模型,在此基础上开发了一套多Agent协商调度机制来协调各个Agent,从而动态智能地分配加工任务。为了验证提出的动态调度方法的有效性,设计了一个模拟车间实验平台。实验结果表明该方法可以保证车间有序运行的同时有效地减少设备故障等随机因素对车间的影响。     

基于改进免疫遗传算法的混合车间调度研究

建立了以最大总完成时间最小为目标的混合车间调度模型。该模型包括作业车间和并行流水装配车间两部分调度问题。为降低问题求解难度,采用分解的策略对调度问题分阶段求解,并引入多Agent协商机制和模拟退火算法与免疫遗传算法相结合,提出了基于分解策略的免疫遗传算法,并通过在某汽车减振器企业的实施验证了模型和算法的有效性。     

敏捷制造车间任务规划系统的设计与开发

敏捷制造车间任务规划作为联系敏捷制造车间计划与敏捷制造车间调度与控制的纽带，是计划任务在敏捷制造单元层上的动态分配。对敏捷制造车间任务规划系统进行了设计，构造了基于多Agent的体系结构，定义并描述了敏捷制造车间任务规划问题，并在分析敏捷制造车间各个智能体行为的基础上，提出了基于知识和联盟形成算法的敏捷制造车间任务规划方法。该方法。是敏捷制造车间任务规划系统的核心。介绍了开发的敏捷制造车间任务规划系统。     

网络化制造中车间层分布式数字控制系统信息集成框架研究

构建了车间层分布式数字控制系统信息交互平台体系结构,该平台融合了设备层信息与车间层控制、管理信息,可实现底层设备与上层应用系统之间的信息交换与融合集成。提出了基于多智能体的分布式数字控制系统信息集成框架,建立了网络结构及通信机制;论述了多智能体在此集成框架下实现分布式数字控制系统基于总线的设备集成控制,以及与企业内部系统基于公共对象请求代理体系结构的信息集成和与外部系统基于Web服务的信息集成;对其中多智能体、可扩展标记语言消息封装、Web服务等关键技术进行了探讨。阐释了该平台的实现及应用,验证了其可行性。     

MODELING AND IMPLEMENTATION OF A DISTRIBUTED SHOP FLOOR MANAGEMENT AND CONTROL SYSTEM

Adopting distributed control architecture is the important development direction for shop floor management and control system, is also the requirement of making it agile, intelligent and concurrent. Some key problems in achieving distributed control architecture are researched. An activity model of shop floor is presented as the requirement definition of the prototype system. The multi-agent based software architecture is constructed. How the core part in shop floor management and control system, production plan and scheduling is achieved. The cooperation of different agents is illustrated. Finally, the implementation of the prototype system is narrated.     

基于多Agent和动态逻辑制造单元的车间控制系统研究

根据敏捷化生产的要求，分析车间控制系统的多Agent层次结构，提出动态逻辑制造单元的概念，用于组织车间制造系统资源，实现在动态多变的环境中车间制造系统快速重组，动态重构的能力，研究在动态逻辑制造单元的组织形式下，面向订单的生产调度的实现方法，并给出了车间多Agent系统的软件体系结构。     

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.     

Hybrid shop floor control system for Computer Integrated Manufacturing (CIM)

A shop floor can be considered as an important level to develop Computer Integrated Manufacturing system (CIMs). However, a shop floor is a dynamic environment where unexpected events continuously occur, and impose changes to the planned activities. To deal with this problem, a shop floor should adopt an appropriate control system that is responsible for the coordination and control of the manufacturing physical flow and information flow. In this paper, a hybrid control system is described with a shop floor activity methodology called Multi-Layered Task Initiation Diagram (MTD). The architecture of the control model contains three levels: i.e., the shop floor controller (SFC), the intelligent agent controller (IAC) and the equipment controller (EC). The methodology behind the development of the control system is an intelligent multi-agent paradigm that enables the shop floor control system to be an independent, an autonomous, and distributed system, and to achieve an adaptability to change of the manufacturing environment.     

基于多代理技术的车间计划与调度研究

对分布式车间生产计划与调度过程进行了研究,并在基于多代理（multi-agent）的车间管理控制系统中实现。     

基于MES的生产车间管理信息系统

针对制造企业在实施生产管理信息化过程中存在的问题,提出以制造执行系统(MES)为核心的三层结构———企业资源计划(ERP) /制造执行系统(MES) /过程控制系统(PCS)的生产管理信息化的实施方案,用于解决生产与计划相互脱节的难题,实现了车间的现场调度、生产过程控制、在线质量控制,以及对生产过程中“非常规信息”的控制与管理,加强了制造计划的可执行性。     

面向制造过程的分布式协作集成车间控制系统

以CORBA体系结构为基础。以以太网／现场总线为架构。采用Agent技术建立了面向制造过程的信息资源集成和数控设备集成的两层车间控制系统。该系统简化了车间管理层次。加快了信息传输速度，提高了数控机床的利用率。实现从产品设计到制造加工的全过程集成。更好地满足车间敏捷性的需要。     

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.     

Interoperable control [production control]

Focussing on shop floor control for discrete parts cellular manufacturing systems, the author proposes a functional architecture for managing the flow of work through the system in quasi real time. The shop floor control (SFC) system must be flexible, portable and also must support interoperability     

Towards a next-generation production system for industrial robots: A CPS-based hybrid architecture for smart assembly shop floors with closed-loop dynamic cyber physical interactions

Given the multiple varieties and small batches, the production of industrial robots faces the ongoing challenges of flexibility, self-organization, self-configuration, and other “smart” requirements. Recently, cyber physical systems have provided a promising solution for the requirements mentioned above. Despite recent progress, some critical issues have not been fully addressed at the shop floor level, including dynamic reorganization and reconfiguration, ubiquitous networking, and time constrained computing. Toward the next generation production system for industrial robots, this study proposed a hybrid architecture for smart assembly shop floors with closed-loop dynamic cyber physical interactions. Aiming for dynamic reorganization and reconfiguration, the study also proposed modularized smart assembly units for the deployment of physical assembly processes. Enabling technologies, such as multiagent system (MAS), self-organized wireless sensor actuator networks, and edge computing, were discussed and then integrated into the proposed architecture. Furthermore, a multijoint robot assembly process was selected as a target scenario. Thus, an MAS was developed to simulate the coordination and negotiation mechanisms for the proposed architecture on the basis of the Java Agent Development Framework platform.