In the industrial Internet of Things system architecture, network connectivity provides support for promoting the full flow and seamless integration of industrial data. Network connection is divided into two levels: 1) network interconnection; 2) data interoperability.
1) Network interconnection refers to the realization of data transmission between entities through network connection, focusing on physical connectivity (physical layer) and data distribution (link layer and network layer).
There are their own technical means of realization inside and outside the factory. In the industrial field, physical objects are nothing more than "personnel, machinery, raw materials, methods and environment", which are the main factors affecting product quality and delivery date.
Personnel: refers to the personnel who manufacture the product.
Machinery: refers to the machinery and equipment used to manufacture products.
Raw materials: refers to the raw materials used to manufacture products.
Method: refers to the method used to manufacture products.
Environment: refers to the environment in the process of product manufacturing.
Intelligent manufacturing and digital factories are committed to interconnecting these production factors on the network, and then realize the linkage of product quality and production process through industrial data modelling and data analysis, and reverse the improvement and optimization of various factors.
2) Data interoperability refers to the establishment of standard data structures and norms, so that the transmitted data can be effectively understood and applied. Data is seamlessly transmitted between systems, and various heterogeneous systems can understand each other at the data level, so as to realize the interoperability and utilization of data. Data interoperability emphasizes semantics, that is, using languages that can be understood by computers, controllers and devices, so that it can be easily interacted. Data interoperability corresponds to the transmission layer and application layer of the OSI reference model. A deep understanding of the split of these two levels is important for understanding network connection.
Post time: Mar-24-2025