Analysis of Real-time Performance of EPA and Its Calculatio

On the base of analyzing transmission principle of periodic data in EPA network deeply,the paper discussed communication delay composition of periodic data in end-to-end transmission process of EPA network and end treatment process.And it took a typical EPA network composed of micronet segments as an example to do quantitative calculation of communication delay of periodic data of EPA network, so as to get real-time indexes which EPA network could reach.It also pointed out measures to improve real-time performance of EPA network.