# Research on a Real-Time Control System for Discrete Factories Based on Digital Twin Technology
## 4 Discussion  
The final research result of this article is a prototype software of the real-time control system for the factory, which is specialized in manufacturing the intermediate shaft dual gear of a new energy vehicle gearbox. But the final result cannot be separated from the previous processes and methods, and discussing the final outcome will also involve the previous processes and methods. 1. The relationship between the final research result and title of this article: The intermediate shaft dual gear of a new energy vehicle gearbox is a type of mechanical gear, and mechanical gears are widely used as mechanical components. Gear manufacturing enterprises are most typical discrete manufacturing enterprises. The factory is the main department for each manufacturing enterprise. A gear factory is an abbreviation for a gear manufacturing factory, and a discrete factory is an abbreviation for a discrete manufacturing factory. The gear factory is a most typical discrete factory, and the research methods and achievements of a real-time control system based on digital twin technology are also suitable for other discrete factories. 2. The relationship between the digital factory and a real-time control system: A digital twin factory consists of a physical factory and a digital factory. The physical factory includes the hardware of a digital twin factory and the software that is not related to the digital factory. The digital factory includes the software, except for some specialized software which is unrelated to the digital factory, of the digital twin factory. Then, a real-time control system consists of the hardware of the real-time control system and the software of the real-time control system. The hardware includes some objects of a real-time control system, such as sensors, controllers, computers, camera lenses, cable connections, etc. The software includes other components of a real-time control system, such as computer applications, surveillance videos, images  
Figure 10: A real-time control system for the digital twin dual gear factory. and data, databases, etc. Therefore, the digital factory is just the software of the real-time control system of the digital twin factory. Due to the extremely simple hardware of the real-time control system and its standardization, the research on the real-time control system mainly focuses on the software of a real-time control system or the digital factory. The software development of a real-time control system can be transformed into the development of a digital factory, laying an important technical path for researchers studying real-time control systems. 3. The impact of the model for a digital twin gear factory on the prototype software of the real-time control system for the dual gear factory: the model for a digital twin gear factory is the centralized display of software and hardware resources, as well as the operating methods for the digital twin gear factory. And it determines the functionality and applicability of the prototype software of the real-time control system, and also affects the requirement analysis and functional implementation of software development. 4. The impact of the human-computer interaction architecture for the real-time control system on the prototype software of the real-time control system for the dual gear factory: The human-computer interaction architecture mainly affects the performance and operation of software, and also has a certain impact on the requirement analysis and functional implementation of software development. 5. The impact of the virtual tools, such as 3D MAX and WebGL, and communication standards, such as OPC UA and REST, on the prototype software of the real-time control system for the dual gear factory: The selection and use of virtual tools affect the quality of THE virtualized images and development efficiency, while the selection and use of communication standards affect system data transmission and interactions.