离散制造数字化车间基于MES的智能装备集成平台研究与设计

发布时间：2018-02-20 15:18

本文关键词： 数字化车间 MES 设备集成动作序列协议 OPC技术　出处：《重庆大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着我国制造业工业化进程的不断深入,以信息化辅助生产的管理模式也逐步暴露了一些不足,最明显的是体现在信息管理和车间现场工业控制的结合和集成方面。制造执行系统(Manufacturing Execution System)帮助企业在计划层与控制层之间架起了沟通的桥梁,填补了企业计划层和控制层之间的信息断层。但目前我国MES的研究主要以生产过程调度为主,存在设备集成化程度低、数据采集实时性效果不佳、自动化管理控制落后等问题。本文研究的基于MES的智能装备集成平台,以传统的离散制造数字化车间为使用对象进行分析,为满足上层MES车间管理系统对数字化车间现场实时数据的需要,提供一个统一、开放的通信机制和平台,通过对车间生产过程涉及的不同的数字化智能设备集成连接,实现对车间生产过程的数据采集和过程控制。本文首先描述了一种离散制造的数字化车间体系架构,分析了数字化车间实施MES系统对智能装备集成的需求。其次,建立了一种三层的适用于离散制造数字化车间基于MES系统的智能装备集成平台总体框架结构,该框架分为车间执行层、信息交互层、现场设备层。再次,对离散制造数字化车间基于MES的智能装备集成平台部分关键问题进行了详细研究。确定了数字化车间现场联网通信结构,实现对数字化智能设备的网络连接;建立了一种数字化加工单元的设备模型,在此模型上对加工单元运行流程进行了研究,建立了一种加工单元动作序列协议用于加工单元实现集成与控制,同时设计了相关的网络应用层通信协议;研究了基于OPC技术的底层智能装备集成策略,确定了智能装备集成平台OPC服务器的结构,从而实现对车间生产现场各异构的智能装备的统一交互集成,同时针对车间底层生产信息的多源异构性,研究了OPC数据类型转换机制,通过I/O DLL实现不同制造商硬件设备与集成平台的连接。最后,在上述框架和关键技术研究的基础上,结合企业对智能装备集成平台系统的功能需求,设计并开发了离散制造数字化车间基于MES的智能装备集成平台原型系统。并将相关研究成果在企业进行了试点应用,取得了良好的应用效果。
[Abstract]:With the deepening of the industrialization process of our manufacturing industry, the management model of the information-aided production has gradually exposed some shortcomings. The most obvious is the combination and integration of information management and workshop field industrial control. Manufacturing Execution system helps enterprises build a bridge between the planning and control layers. It fills the information gap between the enterprise planning layer and the control layer, but at present, the research of MES in our country mainly focuses on production process scheduling, which has low level of equipment integration and poor real-time effect of data acquisition. The intelligent equipment integration platform based on MES, which is studied in this paper, takes the traditional discrete manufacturing digital workshop as the object of use. In order to meet the needs of the upper MES workshop management system for the real-time data of the digitized workshop, a unified and open communication mechanism and platform are provided, and the different digital intelligent devices involved in the workshop production process are integrated and connected. Firstly, this paper describes a digital workshop architecture of discrete manufacturing, and analyzes the demand for intelligent equipment integration of MES system in digital workshop. In this paper, a three-layer framework of intelligent equipment integration platform based on MES system for discrete manufacturing digital workshop is established. The framework is divided into workshop execution layer, information interaction layer, field equipment layer. The key problems of the intelligent equipment integration platform based on MES in the digital workshop of discrete manufacturing are studied in detail. The network communication structure of the digital workshop is determined and the network connection of the digital intelligent equipment is realized. In this paper, a device model of digital machining unit is established. Based on this model, the running process of machining unit is studied, and an action sequence protocol of machining unit is established to realize the integration and control of machining unit. At the same time, the communication protocol of network application layer is designed, the integration strategy of the underlying intelligent equipment based on OPC technology is studied, and the structure of the intelligent equipment integration platform OPC server is determined. In order to realize the unified and interactive integration of the heterogeneous intelligent equipment in the workshop production site, the mechanism of OPC data type conversion is studied in view of the multi-source heterogeneity of the production information at the bottom of the workshop. I / O DLL is used to realize the connection between hardware equipment and integration platform of different manufacturers. Finally, on the basis of the above framework and key technology research, combining with the functional requirements of intelligent equipment integration platform system, The prototype system of intelligent equipment integration platform based on MES in discrete manufacturing digital workshop is designed and developed.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TH18

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