关键词: 净水厂, 数字孪生, 几何模型, 信息模型, 决策模型

Abstract: To establish the digital twin model of water treatment plant,a digital twin model construction method was proposed based on five-dimension digital twin model with considering the whole water treatment process.In the proposed construction method,the multi-level digital twin geometric model was carried out to digitally present the whole elements of water treatment plant and their relationships.The digital twin information model was established with these technologies of device identifier resolution,data collection,semantic description and finite state machine,so as to ensure the mapping and digital representation between physical world and digital space.The digital twin decision-making model was built with mechanism and intelligent model-driven hybrid frame work to describe the operation mechanism and law in water treatment plant.The integrated platform was developed,which verified the effectiveness of the proposed method,and provided an effective reference for the realization of digital twin modeling of water treatment plant.

Key words: water treatment plant, digital twin, geometric model, information model, decision-making model