Processing Technology For Real-time Data Streaming Of VPX Based Embedded System

Real-time streaming data,as a data sequence that arrives continuously at high speed,is widely used in fields closely related to embedded systems such as industrial control,real-time monitoring,automatic driving,and signal processing.As embedded systems have higher and higher requirements for real-time streaming data processing performance,traditional real-time streaming data processing systems on embedded systems have encountered bottlenecks,and there are more and more problems in data transmission speed,real-time performance and data processing bandwidth.Aiming at the problems of data transmission speed,real-time performance and data processing bandwidth on embedded systems,this paper presents and discusses a set of high-performance real-time streaming data transmission,analysis and storage software systems based on VPX embedded systems.The system combines the inter-board data transmission technology based on the VPX embedded system and the symmetric multi-processing stream data processing technology based on the PCIe protocol,which can effectively solve the problem of low real-time performance when processing real-time stream data on the embedded system under certain conditions.Then,based on the software system discussed in this article,the real-time operating system,PCIe bus protocol,VPX bus protocol and other technologies are researched,and then combined with the application requirements analysis and demonstration of the overall software system architecture and scheme,the real-time stream data receiving and sending management software,the analysis software and storage software are designed,and the key modules such as the command control module,the cache management module,and the design ideas and specific implementation of each level of the software are demonstrated in detail.At the end of this article,the system discussed and the specific software implementation are tested and analyzed on the VPX embedded system.The test results show that the driver and application can be loaded normally and maintain normal working status for a long time,and stream data transmission,analysis and storage speeds have reached 1500MB/s,1100MB/s,and 2.225GB/s respectively,meeting the needs of high-speed real-time streaming data transmission,verifying the high real-time,high accuracy,and high-speed characteristics of the system,which explains This system has good application value in the real-time streaming data processing field for embedded system.