Design and implementation of time-sensitive network data transmission system

In the era of intelligent manufacturing, the integration of IT and OT realizes collaborative manufacturing under the transparency of the entire data. In industrial manufacturing, the communication mode of Fieldbus has great limitations. It is difficult to meet the needs of the era of intelligent manufacturing. The complexity of Fieldbus has different physical interfaces, transmission mechanisms, and object dictionaries, which causes large delays and jitters in IT information collection and downlink of instructions. This paper designs a time-sensitive network data transmission system and transmission method, including an end device as a data transmission and reception point, a clock synchronization module that provides an accurate synchronous clock for the network, and a bridge device that acts as an exchange. A perfect data shaping and scheduling mechanism is adopted, so that strong real-time data can preempt weak real-time data. The preempted data can continue to occupy the channel for transmission after the strong real-time data transmission is completed, providing a set of fast transmission solutions for future deterministic data.