Research On Real-time Signal Channel Technology For Embedded System

The increasing demand for high-speed real-time stream data transmission brings great challenges to system bandwidth,delay,and stability.At the same time,CPU gradually becomes a bottleneck in the field of high-performance data transmission.In response to this phenomenon,this paper studies high-performance real-time signal channel technology,proposes and designs a high-performance real-time data transmission and distribution system architecture for embedded system.The system combines serial data transmission between modules based on Aurora and processing module and server interconnection based on 10 Gigabit Ethernet TCP/IP offload engine technology.It has good application value in the field of high-performance real-time streaming data transmission.Starting from the key technology of the subject,this paper studies FPGA,Aurora,TCP/IP,etc.Then,this paper analyzes and demonstrates the architecture and scheme of the system based on the application requirements.Relying on FPGA platform,this paper designs hardware logic to complete Aurora-based high-performance serial data transmission subsystem and TOE-based high-performance real-time data network distribution subsystem,then discusses the design ideas and implementation process of key modules in detail.Finally,this paper verifies the correctness of the system's functions and tests its performance.The results of verification and testing show that the system can ensure the correctness and stability of high-performance real-time stream data transmission,support multiple concurrent transmission of 40 Gbps,the highest actual transmission rate of single 10 Gigabit Ethernet can reach 9.7Gbps,and the CPU occupancy rate of processing module is less than 3%.