Industry 4.0: Robotic vacuum cleaner Industrial Internet of Things (IIoT) The industrial internet of Things (IIoT) refers to inter-connected instruments, sensors, and other devices interacted together with computers' industrial applications, including manufacturing and energy management. This interconnection permits for exchange,data collection, and analysis, possibly easing developments in productivity and efficiency as well as other economic benefits. Technologies empowered by IIoT IIoT empowering technologies are included: Cyber-physical system, cloud computing, edge computing, machine-to-machine , 3D-printing, robotics, Big Data, Artificial intelligence and machine learning. Layered modular architecture The IIoT systems are generally believed as a layered modular architecture of digital technology. The Content layer included the User interface devices for example screens, tablets, smart glasses. The service layer describe the applications, software to analyze dat