水利专业模型标准化元数据建模技术研究与应用

Research and application of standardized metadata modeling technologyfor water conservancy professional models

不同业务类型的水利专业模型在水利工程对象类型、模型静态参数、动态边界条件等输入侧存在差异,无法采用统一的构建模式进行通用化处理,影响模型的可复用性,降低了数字孪生平台的通用化水平。为此,提出了一种水利专业模型的建模技术,通过提取多类型专业模型在输入侧的类型、组织和格式特征,利用元数据的信息描述特性,建立针对水利专业模型建模过程的标准化元数据集,并基于元数据集设计和实现了通用化的建模过程接口,支撑水利专业模型的建模。该标准化元数据建模技术已成功应用于数字孪生岳城水库的预报、调度专业模型建模过程中,通过元数据屏蔽了模型各类输入数据的差异,提升了建模的效率和模型的可复用性。

Due to the differences in the inputs of different business types of water conservancy professional models in terms of water conservancy engineering object types,model static parameters,dynamic boundary conditions,etc.,it is not possible to adopt a unified construction mode for generalization,which greatly affects the re-usability of the model and reduces the level of generalization of the digital twin platform.In this paper,we propose a modeling technique for water conservancy professional models,by extracting the type,organization,and format characteristics of multi-type professional models on the input side,and utilizing the information description characteristics of metadata,we establish a standardized metadata set for the modeling process of water conservancy professional models.Further,we design and realize a generalized modeling process interface based on the metadata set,which can support the modeling of water conservancy professional models.The standardized metadata modeling technology proposed in this paper was successfully applied to the modeling process of the forecasting and dispatching professional model of the Digital Twin Yuecheng Reservoir,and the metadata avoided the differences between various types of input data of the model,which improved the efficiency of modeling and the reusability of the model.