Time-sensitive network traffic hierarchical scheduling method for industrial site

The invention relates to the technical field of industrial Internet of Things time-sensitive networks, in particular to an industrial site-oriented time-sensitive network traffic hierarchical scheduling method, which comprises the following steps of: S1, defining each traffic characteristic parameter in a network topology; s2, establishing a target function; s3, designing a gate control list (GCL) by using a time-aware shaper (TAS), and specifying a traffic transmission rule through each constraint condition in a transmission process; s4, performing cache scheduling on the flow by using the shadow queue designed in the invention in the transmission process; s5, solving by using a Z3 solver to obtain a final optimization result; according to the shadow queue designed by the invention, the queuing delay of packet loss of high-priority TT flow is reduced; a priority inversion method is designed, so that the TSN can more flexibly deal with the transmission of emergency traffic; and the throughput of the whole sys