What is a digital twin
A digital twin is a digital model or replica of a
physical asset, be it a product, an organisation, a
public infrastructure or even an entire city. It has a
wide range of applications – from conducting
diagnostics on organisational health, augmenting
service designs to enabling more effective city
management. In the context of a smart city, a
digital twin of the city continuously collects
information from the built environment (via
technologies such as sensors, drones, or mobile
devices). It is made possible with the use of
remote communication technologies such as WiFi
and Bluetooth as well as through Internet of Things
(IoT) sensors that gather data from the physical
world to reconstruct an identical digital copy of the
city. Apart from IoT, the use of Big Data, Artificial
Intelligence (AI), cloud computing, machine
learning and advanced analytics also enhance the
accuracy and dynamism of this replica, allowing
static, historical and real- time data to be
processed and synthesised almost immediately to
provide valuable insights about the performance
of the city. Therefore, a digital twin can be
considered as a “strategy accelerator” that
facilitates public sector organisations to identify
insights and connections more effectively, and to
drive to better solutions with more confidence.
数字孪生是产品，机构，公共基础设施甚至整
个城市的数字模型或实物资产的副本。它具有
广泛的应用 — 从对机构进行监测，增强服务
设计到实现更有效的城市管理。在智慧城市的
背景下，城市的数字孪生不断（通过传感器，
无人机或移动装置等的技术）从建筑环境中收
集信息。通过使用远程通信技术（例如WiFi和
蓝牙），物联网（IoT）传感器以及从现实世界
收集数据，能实现构建与城市相同的数字副本。
除物联网外，运用大数据，人工智能（AI），
云计算，机器学习和分析的功能，亦可提高数
字副本的准确性和动态性，令数字副本可实时
处理和汇总静态，历史和实时数据，提供有关
城市表现的见解。因此，数字孪生可被视为
“战略加速器”，促进公共部门机构更有效地
洞察数据与城市管理的关联，并为公共机构推
动更佳的解决方案注入信心。
什么是数字孪生
Digital Twins in Smart City
2
智慧城市中的数字孪生
