数字化工厂的规划建设、投产运营及优化改进是企业信息化和工业化融合不断深入的过程。在这个过程中数字世界与物理世界不断迭代，支持企业产品设计、生产制造、运营管理等各个环节的PDCA循环不断改进和提升。数字化工厂建设架构从产品生命周期、系统层级两个维度来进行构建，实现数字世界与物理世界的交互迭代。
1）产品全生命周期：
由产品设计、工艺规划、生产制造、服务保障等一系列相互联系的价值创造活动组成的链式集合。生命周期中各项活动相互关联、互相影响。
2）系统层级：
本论文提出数字化工厂建设系统层级自下而上共四层结构：
①设备资源及控制层：包括传感器、仪器仪表、条码、射频识别、机器、机械和装置、以及电力、燃气能源设施等硬件设备，以及与硬件设备密切相关的可编程逻辑控制器（PLC）、数据采集与监视控制系统（SCADA）、分布式控制系统（DCS）和现场总线控制系统（FCS）等控制系统，是企业进行生产活动的技术基础。
②数据库层：包括设计类、工艺类、制造类、管理类、试验类、标准体系库（包括数字化管理标准、测试与试验标准、设计标准、STEP标准（产品信息交换标准））等。各类数据库又有各自的基本数据库与知识库。作为数字化工厂体系框架的第二层，为数字化工厂提供最基本的数据支撑。
③管理层：包括面向设计部门的产品数据管理（PDM）、面向工艺部门的工艺工装管理、面向生产部门的制造执行系统（MES）、面向后勤保障部门的能源管理系统等。
④协同层：包括产品生命周期管理（PLM）、企业资源计划系统（ERP）、供应链管理系统（SCM）和客户关系管理系统（CRM）等，并通过互联网络共享信息实现企业内部各部门之间协同和产业链上不同企业间协同。
翻译：
What is the digital factory architecture?
The planning, construction, operation and optimization of the digital factory are the deepening process of the integration of enterprise informatization and industrialization. In this process, the digital world and the physical world continue to iterate, supporting the PDCA cycle of enterprise product design, manufacturing, operation management and other aspects of continuous improvement and upgrading. In this paper, the architecture of digital factory construction is constructed from two dimensions of product life cycle and system level to realize the interactive iteration of the digital world and the physical world.
1) Product life cycle:
It consists of a series of interconnected value creation activities such as product design, process planning, manufacturing, and service guarantee. The activities in the life cycle are interrelated and influence each other.
2) System level:
This paper proposes a four-layer structure of digital factory construction system from the bottom up:
① Equipment resources and control layer: Including sensors, instrumentation, bar codes, radio frequency identification, machines, machinery and devices, as well as power, gas energy facilities and other hardware equipment, As well as control systems closely related to hardware equipment, such as programmable logic controller (PLC), data acquisition and monitoring control system (SCADA), distributed control system (DCS) and field bus control system (FCS), are the technical basis of enterprise production activities.
② Database layer: including design class, process class, manufacturing class, management class, test class, standard system library (including digital management standard, test and experiment standard, design standard, STEP standard (product information exchange standard)). Each kind of database has its own basic database and knowledge base. As the second layer of the digital factory system framework, it provides the most basic data support for the digital factory.
③ Management: including product data management (PDM) for the design department, process tooling management for the process department, manufacturing execution system (MES) for the production department, energy management system for the logistics support department, etc.
(4) Collaboration layer: including product life cycle management (PLM), enterprise resource planning system (ERP), supply chain management system (SCM) and customer relationship management system (CRM), etc., and through the Internet to share information to achieve collaboration between various departments within the enterprise and collaboration between different enterprises in the industrial chain.
