In recent years, the Industrial Internet of Things (IIoT) came into being. IIoT connects sensors, industrial equipment, products, and staff in the factory, enabling context-awareness and industrial equipment automate control. The identity resolution system is a core infrastructure in IIoT. Similar to the role of Domain Name System (DNS) on the Internet, it is the entrance to the IIoT. The difference between them is their input and output. The input of the identity resolution system in IIoT is an identifier of an object. And the output is the mapping data attached to the identifier, including the product profile, a URL, or the identifier's surrounding environment. However, how to deploy an identity resolution system in IIoT has not yet been conclusive. In this article, we provide a comprehensive survey on the potential identity resolution systems that may be used in IIoT. Firstly, an overview of the identity resolution system is introduced, including a reference framework that can be used to evaluate an identity resolution system. Then we review some influential identity resolution systems based on this reference framework. After that, we make a comparison from the perspective of whether they can meet IIoT requirements and technology selection. Finally, some challenges and broader perspectives are discussed.

中文翻译：

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工业物联网的潜在身份解析系统：调查


近年来，工业物联网（IIoT）应运而生。 IIoT 连接传感器、工业设备、产品和工厂员工，实现情境感知和工业设备自动化控制。身份解析系统是工业物联网的核心基础设施。类似于互联网上域名系统（DNS）的作用，它是IIoT的入口。它们之间的区别在于它们的输入和输出。 IIoT中身份解析系统的输入是对象的标识符。输出是附加到标识符的映射数据，包括产品配置文件、URL 或标识符的周围环境。然而，如何在工业物联网中部署身份解析系统尚未定论。在本文中，我们对工业物联网中可能使用的潜在身份解析系统进行了全面调查。首先，介绍了身份解析系统的概述，包括可用于评估身份解析系统的参考框架。然后我们基于这个参考框架回顾了一些有影响力的身份解析系统。然后，我们从是否满足IIoT要求和技术选型的角度进行比较。最后，讨论了一些挑战和更广泛的观点。