Abstract:  Digital twin technology realizes the seamless connection between the digital world and the physical world.  This paper analyzes that digital twin technology has unique digital, information and intelligent characteristics, and has certain complexity, which requires the coordinated support of modeling and simulation, sensing and monitoring, big data, foresight and decision-making, virtual reality and visualization technology clusters. It has instant applications in aerospace, smart cities, intelligent manufacturing, energy, medical health, water conservancy, construction and other fields, strongly driving the digital and intelligent transformation of various fields. In the field of grain, digital twin technology can also greatly promote the development of grain informatization. Digital twin technology empowers grain depots, realizing the functions of grain situation monitoring and prediction, intelligent ventilation, energy consumption monitoring and prediction, grain transport vehicle in and out of the depot monitoring, and grain depot security monitoring. Digital twin grain depots promote the construction of unmanned grain depots, realize the informatization and intelligence of grain depots, and also effectively guarantee grain security.

Key words: digital twin, grain informatization, intelligent ventilation, grain security

摘要： 数字孪生技术实现了数字世界与物理世界的无缝连接。分析得出数字孪生技术其独特的数字化、信息化、智能化特点，且具有一定复杂性，需要建模与仿真、传感与监测、大数据、先知先觉与决策、虚拟现实与可视化技术集群的协同加持。其在航天航空、智慧城市、智能制造、能源、医疗健康、水利、建筑等领域都有着实例化的应用，强力驱动各领域数字化、智能化转型。在粮食领域，数字孪生技术同样能大力促进粮食信息化的发展。数字孪生技术为粮库赋能，实现了粮库的粮情监测及预测、智能通风、能耗监测及预测、运粮车出入库监测以及粮库安防监测等功能，数字孪生粮库促进了无人粮库的建设，实现粮库信息化、智能化的同时也有力保障了粮食安全。

关键词: 数字孪生, 粮食信息化, 智能通风, 粮食安全