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... depicted in Fig. 1, WIA-PA networks adopt a two hybrid layer network topology, including mesh network and star network. The first layer is a mesh-like backbone network which consists of gateway and router devices working as the cluster heads. And the next layer is a star subnet constituted by router devices and field devices or handheld devices. Fig. 2 ...
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... It supports routers, gateways, field devices and handheld devices. As illustrated in Fig. 8, WIA-PA networks adopt 2-layered star-mesh network topology [19]. The first layer is a mesh network that consists of gateway devices and routing devices. ...
The Industrial Internet is a promising technology combining industrial systems with Internet connectivity to significantly improve the product efficiency and reduce production cost by cooperating with intelligent devices, in which the advanced computing, big data analysis and intelligent perception techniques have been involved. This paper comprehensively surveys the recent advances of the Industrial Internet, including reference architectures, key technologies, relative applications and future challenges. Reference architectures which have been proposed for different application scenarios and their corresponding characteristics are summarized. Key technologies, such as cloud computing, mobile edge computing, fog computing, which are classified according to different layers in the architecture, are presented to support a variety of applications in the Industrial Internet. Meanwhile, future challenges and research trends are discussed as well to promote further research of the Industrial Internet. Keywords: Industrial Internet, Reference architectures, Cloud computing, Mobile edge computing, Fog computing
New wireless technologies for industrial applications are emerging, which are simple to install and maintain and can enable complex processes with security and reliability. In 2011, the Chinese Industrial Wireless Alliance developed an industrial wireless sensor network system called Wireless Networks for Industrial Automation and Process Automation, which will also attend Factory Automation. This paper intends to clarify the operation of these wireless systems, as well as to provide an overview of some of its evolution. In addition, some of the current equipment applied in WIA-PA and a few applications related to this technology are presented.
